Title:

Container with pump for discharging bubbles

Document Type and Number:

United States Patent 7401714

Abstract:

A pump for discharging bubbles is provided on a neck portion of a container body. The pump for discharging bubbles comprises a cylinder for liquid in which a first piston slides, a cylinder for air in which a second piston slides, a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons, a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined and a bubbling member provided between the nozzle and the vapor-liquid mixing chamber. Liquid within the container body and outside air are pumped up to be joined in the vapor-liquid mixing chamber and the vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head.

Inventors:

Iizuka, Shigeo (Tokyo, JP)
Mizushima, Hiroshi (Tokyo, JP)
Tsuchida, Haruo (Tokyo, JP)
Saito, Tadao (Tokyo, JP)

Plaque It!

FIELD OF THE INVENTION

The present invention relates to a container provided with a pump for discharging bubbles which is capable of bubbling up liquid (for instance, liquid for cleansing foam, liquid for shaving cream and the like) received in a container body to make the liquid flow in a foamy state.

BACKGROUND OF THE INVENTION

For instance, the container-disclosed in International Publication No. W092/08657 can be exemplified as a container with a pump for discharging bubbles. The container is provided with a container body for receiving liquid having a bubbling property such as a liquid detergent and a pump for discharging bubbles provided on a neck portion of the container body, and they are constructed so that, by depressing a pump head of the pump for discharging bubbles, the liquid is pumped up from the container body and the air is sucked from the outside of the carrier body to mix the liquid and the air. And then, the vapor-liquid mixture is bubbled via a net (bubbling member) provided within the pump and the bubbles are discharged from a nozzle of the pump head.

The pump for discharging bubbles has had various problems as follows.

(a) It sometimes happens that the sucked outside air intrudes into the container body to bubble the liquid, and the liquid surface within the container body is filled with the bubbles, when the bubbles are discharged.

(b) It is difficult to discharge the bubbles in a straight line form relatively for a long range.

(c) A coil spring for energizing the pump head upwards all the time is received in a region where it is in contact with the liquid, and the contact of the coil spring with the liquid may be not desirable depending on the kind of the liquid received in the container body,

(d) It is not possible to change a discharging form of the bubbles.

(e) There is the possibility that only the air passes through the net (bubbling member) before the liquid passes through the net at the first stage of discharging bubbles, and the bubbles will be discharged unseemly in that case, because the liquid which has remained within the net at the last discharging is formed into larger bubbles by flow of only the air and the large bubbles are discharged from the nozzle of the pump head.

(f) It sometimes happens that the balance of the volumes of the liquid and air to be mixed is lost and the liquid volume becomes smaller than the air volume, and accordingly the bubbling will be incomplete at the first stage of discharging bubbles.

Although the container disclosed Japanese Patent Application No. 6-136411(1994) exists as a container with a pump for discharging bubbles improved in the point of (f), it also leaves room for improvements as follows.

(g) It is difficult to change the size of bubbles (diameter of the bubbles).

(h) A measure for preventing a undesired leakage of liquid which is likely to occur when the-container is overturned and so on is not complete.

(e) It sometimes happens that the bubbles adhered to the net (bubbling member) gets dry to clog the net when it is not used, and the bubbles will be formed badly hereafter.

An object of the present invention is to provide a container with a pump for discharging bubbles in which the liquid is not bubbled before it is bubbled in a bubbling member so that the container body will not be filled with bubbles; a container with a pump for discharging bubbles which is capable of discharging the bubbles in a straight line form relatively for a long range; a container with a pump for discharging bubbles in which a coil spring for energizing a pump head upwards all the time is provided in a position isolated from the liquid; a container with a pump for discharging bubbles which is capable of changing a discharging form of bubbles; a container with a pump for discharging bubble which is capable of discharging bubbles stably in a state that the size of bubbles is fixed from the first stage of discharging bubbles; a container with a pump for discharging bubbles which is capable of changing the diameter of bubbles easily; a container with a pump for discharging bubbles which is capable of preventing an undesirable leakage of liquid and a container with a pump for discharging bubbles in which the net (bubbling member) in not clogged up due to drying.

DISCLOSURE OF THE INVENTION

The first invention of the present application provides a container with a pump for discharging bubbles is comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) a bubbling member provided on a space between the nozzle and the vapor-liquid mixing chamber,

liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and joined vapor-liquid is bubbled via the bubbling member to be discharged in foamy state from the nozzle by depressing the pump head, and

the pump head has a double-pipe structured comprising an inside cylinder member and an outside cylinder member which are fitted in a state that they can be rotated one another, the nozzle is provided on the outside cylinder member, the inside cylinder member is provided with a bubble flow portion positioned on the downstream side of the bubbling member, the bubble flow portion is provided with a plurality of discharging holes which vary in diameters, and the container is constructed such that the nozzle of the outside cylinder member is positioned in front of one of the discharging holes of the inside cylinder member to be communicated and the other discharging hole is closed by rotating the outside cylinder member and the inside cylinder member relatively.

By premising the first invention, the second invention of the present application provides ones having a position of the outside cylinder member which makes it possible to close the nozzle without connecting the nozzles to any discharging holes of the inside cylinder member.

The third invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) bubbling member provided between the nozzle and the vapor-liquid mixing chamber,

liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and the joined vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head, and

a nozzle attachment which is capable of reducing the diameter of the hole for discharging bubbles is provided on the nozzle of the pump head.

By premising the third invention, the fourth invention of the present invention provides one in which the nozzle attachment comprises a cylinder body portion provided on the nozzle and a closing body which is provided on an end of the cylinder body portion via a hinge in a state that it can be rotated to open and close the end opening of the cylinder body portion, and a discharging nozzle whose diameter is smaller than that of the end opening of the cylinder body portion is provided on the closing body.

The fifth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber, and

liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and the vapor-liquid is bubbled via the bubbling member to be discharged in foamy state from the nozzle by depressing the pump head, and

the pump head has a double-pipe structure comprising an inside cylinder member and an outside cylinder member which are fitted in a state that they can be rotated one another, the inside cylinder member is provided with a bubble flow portion positioned on the downstream side of the bubbling member and a discharging hole is provided on the bubble flow portion, the outside cylinder member is provided with the nozzle and a closing body which slides on the bubble flow portion fluid-tightly to open and close the discharging hole, and the container is constructed so that the closing body opens and closes the discharging hole by rotating the outside cylinder member against the inside cylinder member and the nozzle is positioned in front of the discharging hole when the discharging hole is opened.

The sixth invention of the present application provides a container with a pump for discharging bubbles comprising a container having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head-on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from cylinder for liquid and the air delivered from the cylinder for air are joined; and

(e) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber,

liquid within the container and outside air are joined in the vapor-liquid-mixing chamber and the joined vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head, and

a closing device for opening and closing the nozzle is provided on the nozzle of the pump head.

The seventh invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber,

a closing device comprising a cylinder body portion provided on the nozzle and a closing body which is provided on the end of the cylinder body portion via a hinge in a state that it can be swung and opens and closes an end opening of the cylinder body portion, is provided on the nozzle of the pump head.

The eighth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber,

liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and the joined vapor-liquid is bubbled via the bubbling member to be discharged in foamy state from the nozzle by depressing the pump head, and

a cap-type closing device for covering the nozzle is provided on the nozzle of the pump head and a slit is formed on a front-wall-portion of the closing device so that the front-wall-portion is elastically deformed by pressure buildup within the nozzle to be opened and the front-wall-portion is elastically returned by pressure drop within the nozzle to be closed.

The ninth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(e) a liquid discharge valve which can be attached to and detached from a valve seat provided on a liquid entrance of the vapor-liquid mixing chamber;

(f) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber; and

(g) a limitation member which is provided on the upper part of the valve seat of the liquid discharge valve and limits the vertical-direction-maximum-migration-length from the valve seat of the liquid discharge valve within the range from 0.1 mm and to 1.0 mm, and

By premising the ninth invention, the tenth invention of the present application provides one in which the vertical-direction-maximum-migration-length of the liquid discharge valve is set up within the range of from 0.2 mm to 0.3 mm.

The eleventh invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a coil spring which is provided within the cylinder for air and energizes the pump head in the direction away from the cylinder for air;

(e) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined; and

(f) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber, and

The twelfth invention of the present application provides a container with a pump for discharging bubbles comprising a container body-having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined;

(e) a bubbling member fitting portion provided between the nozzle and the vapor-liquid mixing chamber; and

(f) a bubbling element which is made up of nets provided extendedly on one end side opening of a short cylinder and is provided singularly or plurally in the bubbling member fitting portion so that a normal or reverse direction can be selected, and

The thirteenth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder member in which a cylinder for liquid and a cylinder for air inserted into the container body from the neck portion are provided to an axial direction in a concentric arrangement and which has a flange portion mounted on the neck portion;

(b) an attaching trunk which is provided on the neck portion and holds the flange portion of the cylinder member in cooperation with the neck portion;

(c) a piston head which passes through the attaching trunk in a state that it can be moved upward and downward and in which the nozzle is provided on a portion exposed from the attaching trunk;

(d) a stem which has a hollow-cylinder-shape in which upper part and lower ends are made open and is received within the cylinder member in a state that it can be moved upward and downward, and in which the upper part is connected to the piston head to be communicated with the nozzle and an annular flange portion is provided on a portion received within the cylinder for air;

(e) a first circular piston which is provided on the lower end of the stem and is capable of sliding on an internal surface of the cylinder for liquid upward and downward air-tightly;

(f) a second piston which is provided on an external surface of the stem of the piston head in a state that it can be moved upward and downward with only a little stroke, closes the opening end of the cylinder for air and has a basic cylinder portion fitted into the external surface of the stem and a seal cylinder portion which can be slid upward and downward fluid-tightly on the internal surface of the cylinder for air, and in which the upper part of the basic cylinder portion is fitted into the lower part of the piston head air-tightly, an air suction valve is provided on a connecting portion for connecting the basic cylinder portion to the seal cylinder portion and the lower part of the basic cylinder portion can be connected to the flange portion of the stem fluid-tightly;

(g) a liquid suction valve which is suspended from the stem in a state that the upper part thereof is inserted into the stem so that it can be moved upward and downward and can be moved upward and downward together with the stem by engaging with the stem, and whose lower part is inserted into the cylinder for liquid in a state that it can be moved upward and downward to make the lower end function as a lower part valve body for opening and closing the liquid entrance of the cylinder for liquid;

(h) a liquid discharge valve arranged on the upper part inside of the stem;

(i) a bubbling member received between the liquid is discharge valve and the nozzle of the pump head;

(j) a vapor-liquid mixing chamber provided between the discharge valve and the bubbling member;

(k) an air passage which is provided among the piston head, the stem and the basic cylinder portion of the second piston and makes the cylinder for air communicate with the vapor-liquid mixing;

(l) a liquid passage-formed among the liquid suction valve, the internal surface of the cylinder for liquid and the internal surface of the stem;

(m) a coil spring which energizes the stem in the direction approaching the piston head; and

(n) a limitation mechanism which prevents the upward movement of the liquid suction valve against the cylinder for liquid when the stem is positioned at the upper limit, and

a stroke from the starting of the downward movement of the pump head when the pump head positioned at the upper limit is depressed until the pump head is moved downward synchronously with the second piston is smaller than an opening-closing stroke of the lower-part valve body of the liquid suction valve.

By premising the thirteenth invention the fourteenth invention of the present application provides one in which the second piston is provided with an air hole which makes the inside and the outside of the cylinder for air communicate with one another, the air suction valve of the second piston is made up of an elastic material and comprises a cylinder portion fitted to the basic cylinder portion air-tightly and an annular diaphragm which is projected to the outside from the cylinder portion, and the diaphragm opens and closes the air hole of the second piston.

By premising the thirteenth invention, the fifteenth invention of the present application provides one in which the stem is provided-with a taper-surface-shaped valve seat whose lower part has a small diameter in an upper part internal surface thereof, and the liquid discharge valve comprises a fitted plate which is fitted into the internal surface of the stem, a plurality of elastic pieces extending downward from the bottom surface of the fitted plate and a valve body which can be brought into contact with and separated from the valve seat of the stem and is provided on the lower end of the elastic pieces.

The sixteenth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder member in which a cylinder for liquid and a cylinder for air inserted into the container body from the neck portion are provided in an axial direction in a concentric arrangement and which has a flange portion mounted on the neck portion, and in which an air hole which communicates with the inside of the container body is provided on the flange portion;

(b) an attaching trunk which is provided on the neck portion and holds the flange portion of the cylinder member in cooperation with the neck portion;

(c) a piston head which passes through the attaching trunk in a state that it can be moved upward and downward and in which the nozzle is provided on the part exposed from the attaching trunk;

(d) a stem which has a hollow-cylinder-shape in which the upper and lower ends are made open and is received within the cylinder member so that it can be moved upward and downward, and in which the upper part is connected to the piston head to be linked with the nozzle and an annular flange portion is provided on a portion received within the cylinder for air;

(e) a first circular piston which is provided on the lower end of the stem and is capable of sliding on the internal surface of the cylinder for liquid upward and downward air-tightly;

(f) a second piston which is provided on the external surface of the stem of the piston head in a state that it can be moved upward and downward only a little stroke, closes the opening end of the cylinder for air and has a basic cylinder portion fitted to the external surface of the stem and a seal cylinder portion which can be slid upward and downward fluid-tightly on the internal surface of the cylinder for air, and in which the upper part of the basic cylinder portion is fitted-to the lower part of the piston head air-tightly, a projecting portion is provided on the lower-part external surface of the basic cylinder portion, the lower end of the basic cylinder portion can be brought into contact with the flange portion of the stem air-tightly and an air hole for making the inside and outside of the cylinder for air communicate with one another is provided on a connecting portion for connecting the basic cylinder portion and the seal cylinder portion;

(g) a second air suction valve which has a cylinder portion fitted to the outside of the projecting portion of the lower-part external surface in the basic cylinder portion of the second piston and an annular diaphragm having an elasticity which is projected to the diagonal upper outside direction from the lower end of the cylinder portion, and in which the diaphragm can be brought into contact with and separated from the connecting portion for connecting the basic cylinder portion and the seal cylinder portion of the second piston to open and close the air hole of the second piston;

(h) a liquid suction valve which is suspended from the stem in a state that the upper part is inserted into the stem so that it can be moved upward and downward and is capable of moving upward and downward with the stem by engaging with the stem, and whose lower part is inserted into the cylinder for liquid in a state that it can be moved upward and downward to make the lower end function as a lower-part valve body for opening and closing the liquid entrance of the cylinder for liquid;

(i) a liquid discharge valve arranged on the upper-part inside of the stem;

(j) a bubbling member provided between the liquid discharge valve and the nozzle of the pump head;

(k) a vapor-liquid mixing chamber provided between the discharge valve and the bubbling member;

(l) an air passage which is provided among the piston head, the stem and the basic cylinder portion of the second piston and makes the cylinder for air communicate with the vapor-liquid mixing chamber;

(m) a first air suction valve which opens and closes the air passage which is linked to the air hole of the cylinder member from a space between the attaching trunk and the pump head;

(n) a liquid passage formed among the liquid suction-valve, the internal surface of the cylinder for liquid and the internal surface of the stem;

(o) a coil spring which energizes the stem in the direction approaching the piston head.

The seventeenth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(b) an attaching trunk which is provided on the neck portion and holds the flange portion of the cylinder member in cooperation with the neck portion, and has a cylinder-shaped rib arranged in a position separated from the internal surface of the neck portion of the container body;

(c) a piston head which passes through the attaching trunk in a state that it can be moved upward and downward and in which the nozzle is provided on a portion exposed from the attaching trunk;

(d) a stem which has a hollow-cylinder-shape in which the upper and lower ends are made open and is received within the cylinder member so that it can be moved upward and-downward, and in which the upper part is connected to the piston head to be linked with the nozzle and an annular flange portion is provided on a portion received within the cylinder for air;

(e) a circular first piston which is provided on the lower end of the stem and is capable of sliding on the internal surface of the cylinder for liquid upward and downward air-tightly;

(g) a second air suction valve which is provided on the connecting portion for connecting the basic cylinder portion and the seal cylinder portion and opens and closes between the inside and outside of the cylinder for air;

(i) a liquid discharge valve arranged on the upper-part inside of the stem;

(j) a bubbling member provided between the liquid discharge valve and the nozzle of the pump head;

(k) a vapor-liquid mixing chamber provided between the discharge valve and the bubbling member;

(m) a first air suction valve in which a cylinder portion is fixed on the attaching trunk in a state that the cylinder portion is fitted to the cylinder-shaped rib of the attaching trunk, the seal cylinder portion is projected in the diagonal upper outside direction from the cylinder portion, the end of the seal cylinder portion is contact with the internal surface of the cylinder for air elastically with pressure, and when the inside of the container body is pressurized negatively, the seal cylinder portion is separated from the internal surface of the cylinder for air to open the air passage linked to the air hole of the cylinder member from a space between the attaching trunk and the pump head;

(n) a liquid passage formed among the liquid suction valve, the internal surface of the cylinder for liquid and the internal surface of the stem;

(o) a coil spring which energizes the stem in the direction approaching the piston head.

The eighteenth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder member in which a cylinder for liquid and a cylinder for air inserted into the container body from the neck portion are provided in an axial direction in a-concentric arrangement and which has a flange portion mounted on the neck portion;

(b) an attaching trunk which is provided on the neck portion and holds the flange portion of the cylinder member in cooperation with the neck portion;

(c) a piston head which passes through the attaching trunk in a state that it can be moved upward and downward and in which the nozzle is provided on a portion exposed from the attaching trunk;

(d) a stem which has a hollow-cylinder-shape in which that the upper and lower ends are made open and is received within the cylinder member so that it can be moved upward and downward, and in which the upper part is connected to the piston head to be linked with the nozzle and an annular flange portion is provided on a portion received within the cylinder for air;

(e) a circular first piston which is provided on the lower end of the stem and is capable of sliding on the internal surface of the cylinder-for liquid upward and downward air-tightly;

(f) a second piston which is provided on the external surface of the stem of the piston head in a state that it can be moved upward and downward only a little stroke, closes the opening end of the cylinder for air and has a basic cylinder portion fitted to the external surface of the stem and a seal cylinder portion which is capable of sliding upward and downward fluid-tightly on the internal surface of the cylinder for air, and in which the upper part of the basic cylinder portion is fitted to the lower part of the piston head air-tightly, the air suction valve is provided on the connecting portion for connecting the basic cylinder portion and the seal cylinder portion, and the lower end the basic cylinder portion can be brought into contact with the flange portion of the stem air-tightly;

(g) a liquid suction valve which is suspended from the stem in a state that the upper part is inserted into the stem so that it can be moved upward and downward and is capable of moving upward and downward with the stem by engaging with the stem, and whose lower part is inserted into the cylinder for liquid in a state that it can be moved upward and downward to make the upper end function as a lower-part valve body for shutting off the inside of the stem up and down when the piston head is positioned at the lower limit by depressing it, and make the lower end function as a lower-part valve body for opening and closing the liquid entrance of the cylinder for liquid.

(h) a liquid discharge valve arranged on the upper part inside of the stem;

(i) a bubbling member received between the liquid discharge valve and the nozzle of the pump head;

(j) a vapor-liquid mixing chamber provided between the discharge valve and the bubbling member;

(k) an air conduit which is provided among the piston head, the stem and the basic cylinder portion of the second piston and makes the cylinder for air communicate with the vapor-liquid mixing chamber communicate;

(l) a liquid passage formed among the liquid suction valve, the internal surface of the cylinder for liquid and the internal surface of the stem;

(m) a coil spring which energizes the stem in the direction approaching the piston head; and

(n) a locking mechanism for making the piston head unmovable upward and downward against the attaching trunk in a state that the piston head is positioned at the lower limit by depressing it.

The nineteenth invention of the present application provides a container with a pump for discharging bubbles comprising:

(a) a container body having a neck portion;

(b) an attaching trunk provided on the neck portion of the container body;

(c) a cylinder member in which the upper end portion is provided and fixed on the attaching trunk, and a cylinder for liquid and a cylinder for air which are inserted into the container body from the neck portion are provided in an axial direction in a concentric arrangement;

(d) a stem which has a second piston fitted to the inside of the cylinder for air and a first piston fitted to the inside of the cylinder for liquid and which is provided on the cylinder member in a state that it is energized upward and it can be moved upward and downward freely;

(e) a pump head which is connected to the upper part of the stem, passes through the attaching trunk to be projected upward and has a nozzle in a portion exposed to the outside from the attaching trunk;

(f) a bubbling element provided in an upstream side of the nozzle of the pump head;

(g) a suction pipe whose upper end opening is connected to the lower end of the cylinder for liquid of the cylinder member and whose lower-end opening is opened to the lower-end corner portion of the inside of the container body;

(h) a direction control mechanism for directing the opening direction of the lower end of the suction pipe and the opening direction of the nozzle of the pump head to the same direction all the time to move the pump head upward and downward to the attaching trunk; and

(i) an air hole to the inside of the container body which is provided on the cylinder for air and is provided in an opposite position to the opening direction of the nozzle of the pump head, and

liquid within the cylinder for liquid and air within the cylinder for air are mixed by moving the pump head and the stem upward and downward, the mixed vapor-liquid passes through the bubbling element to be bubbled and the bubbled vapor-liquid is discharged from the nozzle of the pump head in a foamy state.

By premising the nineteenth invention, the twentieth invention of the present application provides one which includes a rotation preventive mechanism comprising a plurality of vertical ribs which are provided in a region that the attaching trunk is fitted to the cylinder member and are engaged mutually.

By premising the nineteenth invention, the twenty-first invention of the present application provides one in which the direction control mechanism is provided with a vertical projection and a concave groove which are provided on the window hole marginal portion of the top wall center of the attaching trunk and the peripheral portion of the pump head and are engaged mutually in a state that they can be moved upward and downward.

By premising the nineteenth invention, the twenty-second invention of the present application provides one in which the window hole of the attaching trunk is formed into a non-circular window hole, the peripheral lower part of the pump head is formed like the non-circular wall hole, and the direction control member is formed by making the non-circular members engage with one another.

By premising the nineteenth invention, the twenty-third invention of the present application provides one in which the suction pipe is formed into a cylindrical shape, and the inside of the connection cylinder of the lower end of the cylinder for liquid which fits to the upper end portion of the suction pipe is formed into a square.

The twenty-fourth invention of the present application provides a container with a pump for discharging bubbles comprising a container body having a neck portion and a pump for discharging bubbles provided on the neck portion of the container body, wherein the pump for discharging bubbles comprises:

(a) a cylinder for liquid in which a first piston slides;

(b) a cylinder for air in which a second piston slides;

(c) a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons;

(d) a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined;

(e) a bubbling member provided between the nozzle and the vapor-liquid mixing chamber; and

(f) a mouth piece which is provided on the nozzle of the pump head and whose diameter is reduced into a circular cone cylinder shape as it proceeds forward, and in which the nozzle whose inside diameter is not more than 2.0 mm is opened on the end thereof, and liquid within the container body and outside air are joined in the vapor-liquid mixing chamber and the joined vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head.

By premising the twenty-fourth invention, the twenty-fifth invention of the present application provides one in which the bubbling member 34 is formed in a state that a net is stretched over one end opening of a short cylinder, and singular or a plurality of bubbling members can be provided on a space between the nozzle and the vapor-liquid mixing chamber in a state that a normal or reverse direction can be selected.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a longitudinal section diagram indicating a state that a pump head is positioned at an upper limit in a container with a pump for discharging bubbles of the embodiment 1.

FIG. 2 is a longitudinal section diagram indicating a state that a pump head is partly depressed in a container with a pump for discharging bubbles of the embodiment 1.

FIG. 3 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 4 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 5 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 6 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 7 is a longitudinal section diagram of an engagement part of a pump head and an attaching trunk of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 8 is a perspective outside diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 9 is a perspective outside diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 1.

FIG. 10 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 2.

FIG. 11 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 2.

FIG. 12 is a longitudinal section diagram indicating a state that a pump head is positioned at an upper limit in a container with a pump for discharging bubbles of the embodiment 3.

FIG. 13 is a perspective exploded diagram of a pump head and a nozzle attachment of a container with a pump for discharging bubbles of the embodiment 3.

FIG. 14 is a perspective outside diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 3.

FIG. 15 is a perspective outside diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 3.

FIG. 16 is a longitudinal section diagram indicating a state that a pump head is positioned at an upper limit in a container with a pump for discharging bubbles of the embodiment 4.

FIG. 17 is a longitudinal section diagram indicating a state that a pump head is partly depressed, in a container with a pump for discharging bubbles of the embodiment 4.

FIG. 18 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 19 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 20 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 21 is a partial cross section diagram of a pump head of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 22 is a longitudinal section diagram of an engagement part of a pump head and an attaching trunk of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 23 is a perspective outside diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 4.

FIG. 24 is a longitudinal section diagram indicating a state that a pump head is positioned at an upper limit in a container with a pump for discharging bubbles of the embodiment 5.

FIG. 25 is a perspective exploded diagram of a pump head and a closing device of a container with a pump for discharging bubbles of the embodiment 5.

FIG. 26 is a perspective diagram indicating a state that a closing device of a container with a pump for discharging bubbles of the embodiment 5 is closed.

FIG. 27 is a perspective diagram indicting a state that a closing device of a container with a pump for discharging bubbles of the embodiment 5 is opened to discharge bubbles.

FIG. 28 is a longitudinal section diagram of a pump head and a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 29 is a front view diagram of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 30 is a front view diagram indicating a modified embodiment of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 31 is a front view diagram indicating a deformed example of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 32 is a front view diagram indicating a modified embodiment of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 33 is a front view diagram indicating a modified embodiment of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 34 is a longitudinal section diagram indicating a modified embodiment of a closing device of a container with a pump for discharging bubbles of the embodiment 6.

FIG. 35 is a longitudinal section diagram indicating a state that a pump head is positioned at an upper limit in a container with a pump for discharging bubbles of the embodiment 7.

FIG. 36 is a longitudinal section diagram indicating a state that a pump head is partly depressed in a container with a pump for discharging bubbles of the embodiment 7.

FIG. 37 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 7.

FIG. 38 is an enlarged longitudinal section diagram indicating the principal part of a container with a pump for discharging bubbles of the embodiment 7.

FIG. 39 is an enlarged longitudinal section diagram around a liquid discharge valve of a container with a pump for discharging bubbles of the embodiment 7.

FIG. 40 is a diagram indicating a discharging state of bubbles of a container with a pump for discharging bubbles of the embodiment 7.

FIG. 41 is a longitudinal section diagram of a container with a pump for discharging bubbles in the embodiment 8.

FIG. 42 is a perspective exploded diagram indicating part of a pump for discharging bubbles in the embodiment 8.

FIG. 43 is a longitudinal section diagram of a suction pipe connection part of a pump for discharging bubbles in the embodiment 8.

FIG. 44 is a I-I cross section diagram of FIG. 43.

FIG. 45 is a II-II cross section diagram of FIG. 43.

FIG. 46 is a side view diagram in which a working condition of a container with a pump for discharging bubbles of the embodiment 8 is indicated in which part of it is sectioned.

FIG. 47 is a perspective outside diagram indicating a modified embodiment of a pump head in the embodiment 8.

FIG. 48 is a perspective outside diagram indicating another modified embodiment of a pump head in the embodiment 8.

FIG. 49 is a longitudinal section diagram of a container with a pump for discharging bubbles of the embodiment 9.

FIG. 50 is a longitudinal section diagram indicating a state that a pump head is being depressed in a container with a pump for discharging bubbles of the embodiment 9.

FIG. 51 is a longitudinal section diagram indicating a state that a pump head is ascending in a container with a pump for discharging bubbles of the embodiment 9.

FIG. 52 is a longitudinal section diagram of the principal part indicating a provision example of a bubbling element in a container with a pump for discharging bubbles of the embodiment 9.

FIG. 53 is a longitudinal section diagram of the principal part indicating another provision example of a bubbling element in a container with a pump for discharging bubbles of the embodiment 9.

FIG. 54 is a side view diagram indicating a container with a pump for discharging bubbles of the embodiment 10 in which part of it is sectioned.

FIG. 55 is a side view diagram indicating a container with a pump for discharging bubbles of the embodiment 10 in a state that part of it is sectioned, which diagram indicating a state that a pump head is depressed to be held on an attaching trunk engagedly.

FIG. 56 is a cross section diagram indicating a modified embodiment of a container with a pump for discharging bubbles of the embodiment 10 in which part of it is sectioned.

FIG. 57 is a cross section diagram indicating a container with a pump for discharging bubbles of the embodiment 11 in which part of it is sectioned.

FIG. 58 is an enlarged cross section diagram of a mouth-piece-provided-portion of a container with a pump for discharging bubbles of the embodiment 11.

FIG. 59 is a longitudinal section diagram of a container with a pump for discharging bubbles of the embodiment 12.

FIG. 60 is a longitudinal section diagram indicating a state that a pump head is being depressed in a container with a pump for discharging bubbles of the embodiment 12.

FIG. 61 is a longitudinal section diagram of a container with a pump for discharging bubbles of the embodiment 13.

FIG. 62 is a III-III section view diagram of FIG. 61.

FIG. 63 is a longitudinal section diagram of a modified embodiment of a container with a pump for discharging bubbles of the embodiment 13.

THE PREFERRED EMBODIMENTS OF THE INVENTION

The preferred embodiments of the present invention will be described with reference to the drawings as follows.

The Embodiment 1

The container with a pump for discharging bubbles of the embodiment 1 will be described in accordance with FIG. 1 to FIG. 9.

FIG. 1 and FIG. 2 are longitudinal section diagrams of the container with a pump for discharging bubbles in the embodiment 1, and FIG. 3 and FIG. 4 are enlarged diagrams indicating the principal parts of the container.

First of all, the constructions of the container with a pump for discharging bubbles will be described. The container with a pump for discharging bubbles has a pump for discharging bubbles 10 provided on a neck portion 2 of a container body 1 . The liquid having a bubbling property such as a liquid for washing face is received within the container body.

The pump for discharging bubbles 10 comprises a cylinder member 20 , a liquid suction valve 30 , a stem 40 , a first piston 50 , a second piston 60 , a liquid discharge valve 70 , a first air suction valve 80 , a second air suction valve 90 , a pump head 100 , a bubbling unit 130 and an attaching trunk 150 .

The cylinder member 20 has an annular flange portion 21 is provided on the upper end, and constructed such that a cylinder-shaped large-diameter cylinder portion (cylinder for air) 22 whose inside functions as an air chamber is extended downward from the flange portion 21 , a cylinder-shaped small-diameter cylinder portion (cylinder for liquid) 24 whose inside functions as a liquid chamber is extended downward in a concentric shape from a bottom plate portion 23 of the large-diameter cylinder portion 22 , and a connection cylinder 25 is extended downward from the lower end of the small diameter cylinder portion 24 .

The cylinder member 20 is fixed on the container body 1 by the attaching trunk 150 screwed on the neck portion 2 in a state that the large-diameter cylinder portion 22 , the small diameter cylinder portion 24 and the connection cylinder 25 are inserted into the container body 1 from a neck portion 2 and the flange portion 21 is mounted on a packing 200 arranged on the top face of the neck portion 2 . In the flange portion 21 , a plurality of air holes 27 are provided in a region inside of the neck portion 2 .

A suction pipe 201 is connected to the connection cylinder 25 of the cylinder member 20 , and the lower end of the suction pipe 201 is extended to the bottom of the container body 1 .

A central cylinder portion 151 is provided in the center of the attaching trunk 150 , and-the pump head 100 is projected from the central cylinder portion 150 in a state that it can be moved upward and downward.

The bubbling unit 130 is provided within the pump head 100 , and the stem 40 which moves in the inside of the cylinder member 20 upward and downward is connected to the lower part of the pump head 100 fixedly. The liquid discharge valve 70 is provided within the stem 40 , and the second piston 60 which slides on the internal surface of the large-diameter cylinder 22 air-tightly is provided on the peripheral portion of the stem 40 . The second air suction valve 90 is provided on the second piston 60 . The first piston 50 which slides on the internal surface of the small-diameter cylinder portion 24 fluid-tightly is linked to the lower part of the stem 40 , and the liquid suction valve 30 which is connected to the stem 40 and the first piston 50 to operate and opens and closes the connection cylinder 25 , is arranged on the lower portion of the first piston 50 .

Each of the constructions will be described in detail below. The liquid suction valve 30 , a coil spring 39 and the first piston 50 are received within the small-diameter cylinder portion 24 of the cylinder member 20 . The lower end of the liquid suction valve 30 is formed into a lower-part valve body 31 which can be brought into contact with and separated from a valve seat 24 a having a taper surface formed on the lower end of the small diameter cylinder portion 24 , and opens and closes the connection cylinder 25 .

In the liquid suction valve 30 , a plurality of engagement pins 32 which are projected to the outside are provided above the lower-part valve body 31 , and the engagement pin 32 is inserted between vertical ribs 26 provided on the lower end of the small-diameter cylinder portion 24 in a state that they can be moved upward and downward.

In the liquid suction valve 30 , the portion upper than the engagement pin 32 is a large-diameter portion 33 , and a small-diameter portion 34 is linked to the upper part of the large-diameter portion 33 . Vertical grooves 33 a and 34 a which are extended in the vertical direction are formed on the external surface of the large-diameter portion 33 and the external surface of the small-diameter portion 34 , respectively. The upper end of the liquid suction valve 30 linked to the small-diameter portion 34 is an upper-part valve body 35 of taper cylinder shape whose diameter gets larger as it proceeds upward.

The first piston 50 is formed in a hollow cylinder shape in which the upper and lower ends are opened, the lower part of the first piston 50 functions as a seal portion 51 which slides on the internal surface of the small-diameter cylinder portion 24 fluid-tightly, and the upper part opening margin of the first piston 50 functions as a valve seat 52 .

The upper-part valve body 35 of the liquid suction valve 30 is projected upward from the upper-part opening of the first piston 50 and can be brought into contact with and detached from the valve seat 52 of the first piston 50 , and opens and closes the upper-part opening of the first piston 50 .

As shown in FIG. 1, normally, the small-diameter portion 34 of the liquid suction valve 30 is inserted into the first piston 50 in a state that there is enough space between the-small-diameter portion 34 and the internal surface of the first piston 50 . As shown in FIG. 2, when the stem 40 is descended by depressing the pump head 100 , the large-diameter portion 33 of the liquid suction valve 30 can be intruded into the first piston 50 in a state that there is a little space between the internal surface of the first piston 50 and the large-diameter portion 33 , and a liquid passage is secured by the vertical groove 33 a.

The coil spring 39 is provided between the upper end of the vertical rib 26 in the cylinder member 20 and the first piston 50 and energizes the first piston 50 upward. On the other hand, the engagement pin 32 of the liquid suction valve 30 can hold the lower end of the coil spring engagedly from the downward, and accordingly controls the upper limit of the liquid suction valve 30 when it is moved upward.

The stem 40 is formed in a cylinder shape in which the upper and lower ends are opened, and is received within the large-diameter cylinder portion 22 and the small-diameter cylinder portion 24 in a state that it can be moved upward and downward. The upper part of the first piston 50 is inserted into the lower part of the stem 40 fixedly so that the seal portion 51 is projected from the lower part of the stem 40 .

An annular valve seat 41 which is projected in a cross section of an L-like shape is formed in the inside upper part of the stem 40 . In the inside of the stem 40 , the upper side of the valve seat 41 functions as a vapor-liquid mixing chamber 46 , and the spherical liquid discharge valve 70 which can be brought into contact with and separated from the valve seat 41 is received therein in a state that it can be moved.

In the inside of the stem 40 , a plurality of vertical ribs 42 which are extended in the vertical direction are provided on the portion from a position upper than the region to which the first piston 30 is fixed, up to the lower part of the valve seat 41 , in a state that they are dispersed with respect to the circumferential direction. As shown in FIG. 2, when the stem 40 is descended by depressing the pump head 100 , the upper part valve body 35 and the small diameter portion 34 of the liquid suction valve 30 can be intruded into the inside of the vertical rib 42 , and the space between the vertical ribs 42 and the vertical groove 34 a in the small-diameter portion 34 of the liquid suction valve 30 functions as a liquid passage at the time.

The pump head 100 connected to the upper part of the stem 40 is provided with an outside cylinder member 110 and an inside cylinder member 120 . The inside cylinder member 120 is formed in a hollow cylinder shape in which the upper and lower ends are opened and is provided with a small-diameter portion (bubble flow portion) 121 , a medium-diameter portion 122 and a large-diameter portion 123 from top to bottom, and a skirt cylinder portion 124 whose diameter is larger than the large-diameter portion 123 is linked to the lower end of the large-diameter portion 123 . Besides, in the inside of the skirt cylinder portion 124 , a cylinder-shaped valve body 125 is formed projectingly on the downward extension of the large-diameter portion 123 .

In the small-diameter portion 121 of the inside cylinder member 120 , two discharging holes 121 a and 121 b which are different in diameters are opened in a position where they are separated one another at 180 degrees with respect to the circumferential direction.

The upper part of the stem 40 is fitted into the inside of the large-diameter portion 123 of the inside cylinder member 120 to be fixed. Besides, the internal surface of the large-diameter portion 123 is provided with a plurality of vertical grooves 123 a which are extended in the vertical direction in a state that they are dispersed with respect to the circumferential direction. The upper end of the vertical groove 123 a is extended to the position a little upper than the upper end of the stem 40 , and the vertical groove 123 a functions as a air passage.

The bubbling unit 130 is received and fixed on the inside of the medium-diameter portion 122 of the inside cylinder member 120 . The bubbling unit 130 comprises a casing 131 of a hollow cylinder shape in which the upper and lower ends are opened and two bubbling elements 132 provided on the casing 131 . The upper portion of the casing 131 functions as a large-diameter portion 131 a and the lower portion of the casing 131 functions as a small-diameter portion 131 b . The large-diameter portion 131 a is inserted into and fixed on the inside of the medium-diameter portion 122 of the inside cylinder portion 120 and the small diameter portion 131 b is inserted into the inside of the stem 40 in a state that there is a space in the diametral direction. Besides, there is a space between the bottom portion of the large-diameter portion 131 a and the upper end of the stem 40 , and the spaces function as an air passage.

The bubbling element 132 is composed of a net (bubbling member) 133 provided on one end opening of a cylinder body in which the upper and lower ends are opened. In the bubbling element 132 arranged on the lower portion of the casing 131 , the net 133 is provided on the lower end opening of the cylinder body. Besides, in the bubbling element 132 arranged on the upper side of the casing 131 , and the net 133 is arranged on the upper end opening of the cylinder body 132 a.

On the lower-part internal surface of the small-diameter portion 131 b of the casing 131 , a plurality of vertical grooves which are extended upward from the lower end thereof are formed so that the passages for liquid and air can be secured even when the liquid discharge valve 70 comes into contact with the lower end of the small-diameter portion 131 b.

The outside cylinder member 110 of the pump head has a peripheral wall portion 111 of a topped cylinder shape, and a projection portion 112 which is projected to the side is provided on the upper part side of the peripheral wall portion 111 . The inside of the peripheral wall portion 111 is formed as a stepped hole in which the lower portion has a large diameter and the upper portion has a small diameter. On the other hand, the projecting portion 112 is formed in a cylinder shape in which an end is opened as an approximately rectangular nozzle 113 , and the nozzle 113 is linked to the upper end of the stepped hole in the inside of the outside cylinder member 110 . Further, the shape of the nozzle 113 is not limited to the rectangle, and a circular nozzle, elliptical nozzle and the like can be substituted for the rectangular nozzle.

A cylinder portion 115 is extended downward from the inside of a top board portion 114 of the outside cylinder member 110 , and only one opening 115 a is opened in the cylinder portion 115 .

In the outside cylinder member 110 , the cylinder portion 115 is fitted fluid-tightly into the small-diameter portion 121 of the inside cylinder member 120 in a state that it can be rotated, the medium-diameter portion 122 of the inside cylinder member 120 is fitted fluid-tightly into the small-diameter part of the stepped hole of the outside cylinder member 110 in a state that it can be rotated, and the large-diameter portion 123 of the inside cylinder member 120 is inserted into the large-diameter part of the stepped hole in a state that there is a space between them, and accordingly the outside cylinder member is fitted outwardly to the inside cylinder member 120 so that it can be rotated.

FIG. 5 is a cross section diagram of the cylinder portion 115 of the outside cylinder member 110 and the small-diameter portion 121 of the inside cylinder member 120 , and FIG. 6 is a cross section diagram of the large-diameter portion of the stepped hole of the outside cylinder member 110 and the large-diameter portion 123 of the inside cylinder member 120 .

As shown in FIG. 6, on the internal surface of the large-diameter portion of the stepped hole of the outside cylinder member 110 , sets of a stopper projection 116 which is extended in the vertical direction and a passable projection 117 are each formed in positions which are separated one another at 180 degrees with respect to the circumferential direction. On the other hand, on the external surface of the large-diameter portion 123 of the inside cylinder member 120 , projections 123 b which are extended in the vertical direction are each formed in positions which are separated one another at 180 degrees with respect to the circumferential direction. When the outside cylinder member 110 is rotated relatively to the inside cylinder member 117 , although the projection 123 b of the inside cylinder member 120 can pass over the passable projection 117 with a predetermined resistance, it can not pass over the stopper projection 116 , and accordingly the rotation of the outside cylinder member 110 is limited by the stopper projection 116 .

As shown in FIG. 6, when the projection 123 b is positioned between the stopper projection 116 and the passable projection 117 , the opening 115 a of the cylinder portion 115 in the outside cylinder member 110 and the discharging hole 121 a of a small diameter in the inside cylinder member 120 are made to communicate with one another, and the discharging hole 121 b of large diameter is closed by the peripheral surface of the cylinder portion 115 . Besides, when the outside cylinder member 110 is rotated against the inside cylinder member 120 and the projection 123 b is made to pass over the passable projection 117 to be held onto the other stopper projection 117 separated at 180 degrees, the opening 115 a of the cylinder portion 115 and the discharging hole 121 b of large diameter in the inside cylinder member 120 are made to communicate with one another and the discharging hole 121 a of a small diameter is closed by the peripheral surface of the cylinder portion 115 .

The skirt cylinder portion 124 of the inside cylinder member 120 is projected to the portion lower than the peripheral wall portion 111 of the outside cylinder member 110 , and the skirt cylinder portion 124 and the peripheral wall portion 111 are inserted into the central cylinder portion 151 of the attaching trunk 150 so that they can be moved upward and downward. A large number of vertical ribs 151 a which are extended in the vertical direction are formed on the internal surface of the central cylinder portion 151 , and a large number of engagement projections 124 a which are each inserted between the vertical ribs 151 a are formed on the lower end of the external surface of the skirt cylinder portion 124 in a state that they are projected to the outside. As shown in FIG. 7, the lower end of the vertical rib 151 a tapers off as it proceeds downward and the upper end of the engagement projection 124 a tapers off as it proceeds upward so that the vertical rib 151 a and the engagement projection 124 a are guided by the respective taper surface, when the pump head 100 is ascended from the lower part.

In the periphery of the stem 40 , an annular flange portion 43 which is projected to the outside is formed near the middle in the vertical direction and an annular rising wall 44 is provided projectingly, upwardly on the upper surface of the flange portion 43 . The internal surface of the rising wall 44 is formed on the taper surface whose diameter is enlarged as it proceeds upward.

In the stem 40 , the second piston 60 is fitted outwardly to the space between the flange portion 43 and the pump head 100 in a state that it can be moved upward and downward a little. The second piston 60 is formed in a hollow cylinder shape in which the upper and lower ends are opened, the utmost external portion is formed to the seal cylinder portion 61 which slides on the internal surface of the large diameter cylinder portion 22 of the cylinder member 20 air-tightly, the utmost internal portion is formed to the basic cylinder portion 62 which is fitted outwardly to the stem 40 and the seal cylinder portion 61 and the basic cylinder portion 62 are connected with one another by the stepped cylinder portion 63 in which the cross section is bent in a step form.

The upper part of the basic cylinder portion 62 is contacted air-tightly with the internal surface of the cylinder-shaped valve body 125 with pressure in-a state that it can be slid. The air hole 64 is provided on the part in which the basic cylinder portion 62 is connected to the stepped cylinder portion 63 in a state that they are dispersed with respect to the circumferential direction, and the air hole 64 is opened and closed by the relative upward and downward movement between the pump head 100 and the second piston 60 . Namely, the air hole 64 is closed when the pump head 100 moves upward and downward relatively to the second piston 60 so that the cylinder-shaped valve body 125 of the pump head comes into contact with the part where the basic cylinder portion 62 is connected to the stepped cylinder portion 63 , and the air hole 64 is opened when the cylinder-shaped valve body 125 is separated from the above-mentioned connection part.

The lower end of the basic cylinder portion 62 is brought into contact with and separated from the internal surface of the rising wall 44 of the stem 40 by the relative upward and downward movement between the stem 40 and the second piston 60 . In the external surface of the stem 40 , a plurality of vertical grooves 45 which are extended in the vertical direction are provided in a region to which the basic cylinder portion 62 is fitted outwardly in a state that they are dispersed with respect to the circumferential direction. The vertical groove 45 is made to communicate with the inside of the large diameter cylinder portion 22 when the lower end of the basic cylinder portion 62 is separated from the rising wall of the stem 40 , and the vertical groove 45 is shut off from the inside of the large-diameter cylinder portion 22 when the lower end of the basic cylinder portion 62 is comes into contact with the rising wall 44 .

A second air suction valve 90 is fixed on the lower part of the basic cylinder portion 62 . The second air suction valve 90 is provided with an annular diaphragm 91 of upward taper which is extended outside in the diametral direction from the lower end thereof. The diaphragm 91 has an elasticity, and operates so that the peripheral end portion of the diaphragm 91 is brought into contact with the lower surface of the stepped cylinder portion 63 of the second piston 60 with pressure to be sealed under normal conditions, and the peripheral edge of the diaphragm 91 is pulled downward by negative pressure within the large-diameter cylinder portion 22 to be separated from the stepped cylinder portion 63 .

In the attaching trunk 150 , a cylinder-shaped rib 152 is provided on the outside of the central cylinder portion 151 , and the first air suction valve 80 which seals the space between the attaching trunk 150 and the internal surface of the large-diameter cylinder portion 22 is fixed on the lower end of the cylinder-shaped rib 152 . A seal cylinder portion 81 of the first air suction valve 80 in contact with the large-diameter cylinder portion 22 is formed in a taper cylinder shape to be extended in the diagonal upper direction, and has an elasticity. Besides, the upper end portion of the seal cylinder portion 81 operates so that it is pulled inside in the diametral direction by negative pressure within the container body 1 to be separated from the internal surface of the large-diameter cylinder portion 22 .

Further, a clear cover 202 is detachably provided on the attaching trunk 150 .

Then, the operation of the container with a pump for discharging bubbles of the embodiment 1 will be described.

FIG. 1 and FIG. 3 indicate a state that the pump head is not yet depressed, namely, a state that the pump head is positioned at the upper limit. In this state, the liquid suction valve 30 is pushed up through the first piston 50 by the coil spring 39 , the lower-part valve body 31 is separated from the valve seat 24 a of the cylinder member 20 , and the inside of the small-diameter cylinder portion 24 is made to communicate with the inside of the container body 1 through the suction pipe 201 . The upper-part valve body 35 of the liquid suction valve 30 is in contact with the valve seat of the first piston 50 to close the upper-part opening of the first piston 50 . The lower end of the basic cylinder portion 62 of the second piston 60 is in contact with the rising wall 44 of the stem 40 , the first air suction valve 60 is in contact with the stepped cylinder portion 63 of the second piston 60 and the large-diameter cylinder portion 22 of the cylinder member 20 with pressure, and the lower end of the cylinder-shaped valve body 125 of the pump head 100 is separated from the stepped cylinder portion 63 of the second piston 60 to open the air hole 64 .

As the pump head 100 is depressed from the above-mentioned state, the stem 40 and the first piston 50 are descended together with the pump head 100 . As a result, as shown in FIG. 4, the upper-part valve body 35 of the liquid suction valve 30 is separated from the valve seat 52 of the first piston 50 to open the upper-part opening of the fist piston 50 . At almost the same time, the inside of the small-diameter cylinder portion 24 is pressurized by descending the first piston 50 , the liquid suction valve 30 is descended by liquid pressure within the small-diameter cylinder portion 24 , and the lower-part valve body 31 comes into contact with the valve seat 24 a to close the lower part opening of the small diameter cylinder portion 24 . On the other hand, the second piston 60 is standing by frictional force between the seal cylinder portion 61 and the large-diameter cylinder portion 22 right after the depressing of the pump head has started. As a result of descending of the stem 40 in the state, the lower end of the basic cylinder portion 62 of the second piston 60 is separated from the rising projection 44 of the stem 40 , and the lower end of the cylinder-shaped valve body 125 of the pump head 100 comes into contact with the stepped cylinder portion 63 of the second piston 60 to close the air hole 64 .

The second piston 60 is also descended together with the pump head 100 , the stem 40 and the first piston 50 after the lower end of the cylinder-shaped valve body 125 of the pump head 100 comes into contact with the stepped cylinder portion 63 of the second piston 60 .

As the pump head 100 is descended after that, the liquid within the small-diameter cylinder portion 24 pressurized by the first piston 30 passes through the upper end opening of the first piston 30 and the vertical grooves 33 a and 34 a of the liquid suction valve 30 and passes through the space between the vertical ribs 42 of the stem 40 to be pushed into the upper-part of the upper part valve body 35 . Further, the liquid pushes up the liquid-discharge valve 70 with hydraulic pressure to flow into the vapor-liquid mixing chamber 46 (See FIG. 2). On the other hand, the air received within the large diameter cylinder portion 22 passes through the space between the flange portion 43 and rising projection 44 of the stem 40 and the lower end of the basic cylinder portion 62 of the second piston 60 , passes through the vertical groove 45 of the stem 40 , passes through the vertical groove 123 a of the inside cylinder member 120 of the pump head 100 , and passes through the passage between the casing 131 of the bubbling unit 130 and the stem 40 to flow into the vapor-liquid mixing chamber 46 .

Then, the liquid and the air are joined and mixed in the vapor-liquid mixing chamber 46 to be delivered into the bubbling unit 130 . After that, the liquid is bubbled when it passes through the upper and lower two nets 133 of the bubbling unit 130 to be pushed into the cylinder portion 115 of the pump head 100 in a foamy state. The bubble passes through the opening 115 a of the cylinder portion 115 and the small-diameter discharging hole 121 a of the small-diameter cylinder member 120 to be discharged from the nozzle 113 of the pump head 100 . FIG. 8 indicates a discharging state of the bubbles at the moment, and the bubbles are discharged strongly in a state that they are converged finely.

When the outside cylinder member 110 is rotated at 180 degrees against the inside cylinder member 120 , the opening 115 a of the cylinder portion 115 in the outside cylinder member 110 is made to communicate with the large-diameter discharging hole 121 b of the inside cylinder member 120 before depressing the pump head 100 , and the pump head 100 is depressed in the state, the is thick bubbles are discharged from the nozzle 113 , as shown in FIG. 9. The strength of the bubbles discharged at this case is weaker than that of the bubbles discharged through the small-diameter discharging hole 121 a.

Namely, in the container with a pump for discharging bubbles, it is possible to select one of the large and small discharging holes 121 a and 121 b to let the bubbles pass through the discharging hole so as to change the discharging form of the bubbles, if relative position in the circumferential direction of the outside cylinder member 110 and the inside cylinder member 12 of the pump head 100 is selected according to circumstances.

If the finger is off from the pump head 100 after the depressing of the pump head 100 , the hydraulic pressure within the small-diameter cylinder portion 24 and the air pressure within the large-diameter cylinder portion 22 falls, the liquid discharge valve 70 is brought into contact with the valve seat 41 , and the first piston 50 , stem 40 and the pump head 100 are pushed up by the elasticity of the coil spring 39 .

Hereupon, the second piston 60 is standing by frictional force between the seal cylinder portion 61 and the large-diameter cylinder portion 22 right after the pushing up of the pump head has begun. As a result of ascending of the stem 40 in the state, the internal surface of the rising projection 44 of the stem 40 is brought into contact with the lower end of the basic cylinder portion 62 of the second piston 60 with pressure to close the space between the inside of the large-diameter cylinder portion 22 and the vertical groove 45 of the stem 40 . At the same time, the lower end of the cylinder-shaped valve body 125 of the pump head 100 is separated from the stepped cylinder portion 63 of the second piston 60 to open the air hole 64 .

The first piston 50 , the stem 40 , the second piston 60 and the pump head 100 are ascended together, after the internal surface of the rising projection 44 comes into contact with the lower end of the basic cylinder portion 62 .

The inside of the small-diameter cylinder potion 24 is pressurized negatively when the first piston 50 is ascended, and accordingly the liquid suction valve 30 is pulled up and the lower-part valve body 31 is separated from the valve seat 24 a to make the inside of the small diameter cylinder portion 24 communicate with the inside of the container body 1 . As a result, the liquid within the container body 1 is sucked up into the small-diameter cylinder portion 24 , as the first piston 50 is ascended.

The inside of the container body 1 is pressurized negatively when the liquid is pumped up into the small-diameter cylinder portion 24 , and accordingly the seal cylinder portion 81 of the first air suction valve 80 is, drawn to the direction away from the internal surface of the large diameter cylinder portion 22 , and a gap is generated between the seal cylinder portion 81 and the large diameter cylinder portion 22 .

Besides, the inside of the large-diameter cylinder portion 22 is pressurized negatively as the second piston 60 is ascended, and accordingly the diaphragm 91 of the second air suction valve 90 is drawn downward and separated from the stepped cylinder portion 63 of the second piston 60 to generate a gap.

As a result of operating of the first air suction valve 80 and the second air suction valve 90 in the above-mentioned way, the outside air is sucked into the attaching trunk 150 through the space between the central cylinder portion 151 of the attaching trunk 150 and the pump head 100 . Then, part of the air passes through the air hole 64 of the second piston 60 to get into the large-diameter cylinder portion 22 , and the other air passes through the flange portion 21 of the cylinder member 20 to get into the container body 1 . By these actions, the pressures within the large-diameter cylinder portion 22 and the container body 1 are equal to the air pressure, the first piston 50 and the second piston 60 are ascended smoothly and the liquid is pumped up into the small-diameter cylinder portion 24 smoothly.

The container with a pump for discharging bubbles is in a initial state shown in FIG. 1 and FIG. 3, when the pump head 100 returns to the upper limit.

The Embodiment 2

The container with a pump for discharging bubbles of the embodiment 2 will be described in accordance with FIG. 10 and FIG. 11.

The basic constructions of the container with a pump for discharging bubbles of the embodiment 2 is the same as those of the embodiment 1, and the difference lies in a part of the construction of the pump head 100 .

In the pump head 100 in the embodiment 2, the outside cylinder member 110 can be held in a position where the opening 115 a of the outside cylinder member 110 is closed without being connected to any one of the discharging holes 121 a and 121 b of the inside cylinder member 120 .

The construction will be described FIG. 10 and FIG. 11 are cross section diagrams corresponding to FIG. 5 and FIG. 6 of the embodiment 1. As shown in FIG. 11, in the internal surface of the peripheral wall portion 111 of the outside cylinder member 110 , a pair of passable projections 118 a and 118 b in addition to the stopper projection 116 and passable projection 117 are provided in a position separated at 180 degrees in the circumferential direction one another.

When the projection 123 b of the inside cylinder member 120 is positioned in a space between the passable projection 118 a and the passable projection 118 b , the opening 115 a of the cylinder portion 115 of the outside cylinder member 110 is closed by the internal surface of the small-diameter portion 121 of the inside cylinder member 120 without being made to communicate with any one of the discharging holes 121 a and 121 b of the inside cylinder member 120 , and the discharging holes 121 a and 121 b are closed by the external surface of the cylinder portion 115 at the same time, as shown in FIG. 10.

If the opening 115 a is closed in the above-mentioned way, the inside of the inside cylinder member 120 can be prevented from getting dry. Although it sometimes happens that part of the bubbles are solidified in a state that it is adhered to the net 133 , the meshes of the net 133 are clogged and the formation of the bubbles is insufficient or unstable when the pump is operated after that, if the inside cylinder member 120 gets dry, in the embodiment 2, it is possible to prevent the bubbles within the pump head 100 from getting dry, and accordingly a clogging of the net 133 as a bubbling member can be prevented and the bubbles can be formed well and stably.

Further, if the outside cylinder member 110 is rotated against the inside cylinder member 120 in the state of FIG. 10 and FIG. 11, the project 123 b can pass over the passable projection 118 a or the passable projection 118 b , and accordingly the opening 115 a can be made to communicate with the discharging hole 121 a or the discharging hole 121 b.

The Embodiment 3

The container with a pump for discharging bubbles of the embodiment 3 will be described in accordance with FIG. 12 to FIG. 15.

FIG. 12 is a longitudinal section diagram of the container with a pump for discharging bubbles of the embodiment 3. The difference between the embodiment 3 and the embodiment 1 lies in the pump head 100 , and other constructions of the embodiment 3 are the same as those of the embodiment 1. Only the difference will be described below, and the descriptions concerning the constructions which are the same as those of the container with a pump for discharging bubbles of the embodiment 1 will be omitted by giving the identical numbers to the same conditional parts.

Unlike the embodiment 1, the pump head in the embodiment 3 is not made up of two parts of the outside cylinder member and inside cylinder member, and the parts corresponding to the members are made up of one part in a body.

Namely, the pump head 100 has a structure in which the outside cylinder portion 101 , the inside cylinder portion 102 and the top board portion 103 are formed in is a body. The nozzle 104 is opened in the one side upper part of the outside cylinder portion 101 and the upper part of the stem 40 is inserted into and fixed on the lower part of the inside cylinder portion 102 and the bubbling unit 130 is received and fixed on the upper part of the inside cylinder portion 102 . Besides, the bubbling unit 130 is linked to the nozzle 104 through the bubbling passage 105 provided within the pump head 100 .

Besides, in the internal surface of the inside cylinder portion 102 , the vertical groove 102 a corresponding to the vertical groove 123 a in the embodiment 1 is formed on the region to which the stem 40 is fitted inwardly, and the lower end portion 102 b of the inside cylinder portion 102 has the same function as the cylinder-shaped valve body 125 in the embodiment 1 and opens and shuts the air hole 64 of the second piston 60 .

In the embodiment 3, a nozzle attachment 300 is provided on the nozzle 104 . As shown in FIG. 13 to FIG. 15, the nozzle attachment 300 is provided with a cylinder body portion 301 of a rectangle cross section whose inside functions as a bubble passage and a closing body 303 provided on the point of the cylinder body portion 301 through a hinge portion 302 in a state that it can be swung in the vertical direction. A discharging nozzle 304 of taper cylinder shape is projected forward from the front-side center of the closing body 303 , and a fitting cylinder portion 305 of a rectangle cross section which can be fitted to the cylinder body portion 301 is projected from the back face of the closing body 303 . The nozzle attachment 300 is fixed on the pump head 100 by fitting the base of the cylinder body portion 301 into the bubble passage 105 through the nozzle 104 .

The opening area of the end opening of the discharging nozzle 304 is sufficiently smaller than that of the cylinder body portion 301 .

In the embodiment 3, as shown in FIG. 14, the bubbles are discharged strongly in a state that they are converged finely, if the pump head 100 is depressed for pumping up in a state that the closing body 303 is swung downward and the fitting cylinder portion 305 of the closing body 303 is fitted into the end of the cylinder body portion 301 .

On the other hand, as shown in FIG. 15, the thick bubbles will be discharged from the end opening of the cylinder body portion 301 , if the pump head 100 is depressed for pumping up in a state that the closing body 303 is swung upward and the end opening of the cylinder body portion 301 is being exposed.

Namely, in case of the embodiment 3, it is possible to change the discharging form of the bubbles by selecting the state of the used closing body 300 in which it is swung downward or upward.

Further, the cross section shape of the cylinder body portion 301 is not limited to the rectangle and may be determined by the shape of the nozzle 104 .

Embodiment 4

The container with a pump for discharging bubbles of the embodiment 4 will be described in accordance with FIG. 16 to FIG. 23.

FIG. 16 and FIG. 17 are longitudinal section diagrams of the container with a pump for discharging bubbles of the embodiment 4, and FIG. 18 and FIG. 19 are enlarged diagrams indicating the principal parts.

In the container with a pump for discharging bubbles, the pump for discharging bubbles 10 is provided on the neck portion 2 of the container body 1 . The liquid having a bubbling property such as a liquid for washing face is received within the container body 1 .

The cylinder member 20 has an annular flange portion 21 on the upper end, and is constructed such that a cylinder-shaped large diameter cylinder portion (cylinder for air) 22 whose inside functions as an air chamber is extended downward from the flange portion 21 , a cylinder-shaped small diameter cylinder portion (cylinder for liquid) 24 whose inside functions as a liquid chamber is extended downward in a concentric shape from a bottom board portion 23 of the large-diameter cylinder portion 22 , and a connection cylinder 25 is extended downward from the lower end of the small. diameter cylinder 24 .

The cylinder member 20 is fixed on the container body 1 by the attaching trunk 150 screwed to the neck portion 2 in a state that the large-diameter cylinder portion 22 , the small-diameter cylinder portion 24 and the connection cylinder 25 are inserted into the container body 1 from the neck portion 2 , the flange portion 21 is mounted on the packing 200 arranged on the upper surface of the neck portion 2 . In the flange portion 21 , a plurality of air holes 27 are provided in a region inside the neck portion 2 .

The suction pipe 201 is connected to the connection cylinder 25 of the cylinder member 20 , and the lower end of the suction pipe 201 is extended to the bottom of the container body 1 .

The central cylinder portion 151 is provided on the center of the attaching trunk 150 , and the pump head 100 is projected from the central cylinder portion 151 in a state that it can be moved upward and downward. The bubbling unit 130 is provided on the inside of the pump head 100 , and the stem 40 which moves in the inside of the cylinder member 20 upward and downward is connected to the lower part of the pump head 100 fixedly. The liquid discharge valve 70 is provided on the inside of the stem 40 , and the second piston 60 which slides on the internal surface of the large-diameter cylinder portion 22 air-tightly is provided on the peripheral portion of the stem 40 . The second air suction valve 90 is provided on the second piston 60 . The first piston 50 which slides on the internal surface of the small-diameter cylinder 24 fluid-tightly is linked to the lower part of the stem 40 , and the liquid suction valve 30 which is connected to the stem 40 and the first piston 50 to be operated and opens and closes the connection cylinder 25 , is arranged on the lower portion of the first piston 50 .

Each of the constructions will be described in detail below. The liquid suction valve 30 , coil spring 39 and the first piston 50 are received within the small-diameter cylinder portion of the cylinder member 20 . The lower end of the liquid suction valve 30 is formed into the lower part valve body 31 which can be brought into contact with or separated from the valve seat 24 a of a taper surface formed on the lower end of the small cylinder portion 24 , and opens and closes the connection cylinder 25 .

In the liquid suction valve 30 , a plurality of engagement pins 32 which are projected to the outside are provided above the lower part valve body 31 , and the engagement pin 32 is inserted between vertical ribs 26 provided on the lower end of the small-diameter cylinder portion 24 in a state that they can be moved upward and downward.

In the liquid suction valve 30 , the portion upper than the engagement pin 32 is a large diameter portion 33 , and the small-diameter portion 34 is linked to the upper part of the large-diameter portion 33 . The vertical grooves 33 a and 34 a which are extended in the vertical direction are formed on the external surface of the large-diameter portion 33 and the external surface of the small-diameter portion 34 , respectively. The upper end of the liquid suction valve 30 linked to the small-diameter portion 34 is as an upper part valve body 35 of taper cylinder shape whose diameter gets larger as it proceeds upward.

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