JP3360917B2 - Pump container - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a pump container.

[0002]

[Prior art]

As a pump container, a cylinder having an air supply valve to the inside of the container at the upper portion is closed by vertically closing the upper surface of the cylinder with a cover plate and fixing the inside of the cylinder. It has an operating member equipped with a vertically moving piston at the bottom and a downward pressing head with a nozzle attached to the upper end of the stem that protrudes upward through the lid plate, and in the pressed state against the bias of the operating member. In addition to enabling locking, the liquid flow path to the inside of the container can be blocked when the operating member is pressed down and locked, and the liquid inside the container is sucked up by the vertical movement of the operating member and poured from the nozzle of the head. Or a pump having a foaming structure in addition to the above-mentioned structure, and a mixed liquid obtained by mixing air and liquid is foamed by vertical movement of the operating member. Let it bubble Those de of the foam from the nozzle for the out foam Note that as configured to dispense are known.

These are transported and stored in a state before the liquid infiltrates into the pump before use. However, due to the handling at the time of transportation and storage, for example, when the liquid is in the container, the liquid in the container is air. It penetrates into the cylinder through the supply valve hole and accumulates above the piston of the operating member. Therefore, when the locking of the actuating member is released and the actuating member is projected upward, there arises a disadvantage that the accumulated liquid spouts from the opening in which the stem of the mounting cap moves up and down. Therefore, conventionally, a valve plate that closes the outside of the air supply valve hole is provided to eliminate such inconvenience.

As such an example, for example, an international publication number
A pump container for foam discharge of W092 / 08657 is known. The container has a cylinder member having an upper part formed into a large-diameter air cylinder, a lower part formed into a small-diameter liquid cylinder, and an air supply valve to the container body provided on the upper part of the air cylinder. It is closed by a cover plate and vertically fixed in the container body, and the large and small diameter stems are fitted from the large and small diameter pistons fitted in the above cylinders, and the small diameter stem upper part is fitted into the large diameter stem. Stand up by penetrating the stem through the lid plate, attach a push-down head with nozzle to the upper end of the large diameter stem, provide an actuating member that is biased upward, and push down the head in a depressed state against the bias. A part of the cover plate is provided so that it can be screwed. Since the screwing makes the packaging bulky during transportation when the operating member stands up, the operating member is pushed down to the lower limit to downsize the packaging. Liquid flows into the liquid cylinders and outside air into the air cylinders through the suction valves provided in each cylinder, and liquid and air in both cylinders flow through the discharge valve at the upper end of the small diameter stem. In addition, the air is mixed by passing through a passage provided between the large and small stems and further passing through a foaming member fitted into the discharge passage portion above the upper end of the large diameter stem, foaming and discharging from the nozzle. It is provided as follows. The negative pressure due to the decrease of the liquid in the container is eliminated by the air that has flowed in through the air supply valve above the air cylinder.

The air supply valve of the container is composed of a valve hole formed in the upper portion of the air cylinder and a tongue piece that hangs down from the valve cylinder fitted to the upper outer surface of the air cylinder portion to close the valve hole. However, in order to make the entire container compact, it is necessary to narrow the gap between the outer wall surface of the air cylinder and the inner wall surface of the container body mouth neck portion on which the cylinder member having the air cylinder is vertically installed. , If the gap is narrowed in this way, the tongue and the valve cylinder may hit the mouth and neck of the container body when the cylinder member is hung vertically into the container, and the tongue and the inner wall surface of the mouth and neck may be adversely affected. However, the gap between them is not sufficient for opening and closing the valve, which is a drawback.

Further, in the above-mentioned conventional container, since the valve hole for air supply is always closed from the outer surface by the valve body, the introduction of air into the container body is apt to be hindered as compared with a mere through hole. The harmful effect is more remarkable in the foam discharge pump container of the type in which air is introduced into the pump for foaming from the container body, which particularly requires smooth and rapid introduction of air into the container body.

The present invention solves the above-mentioned drawbacks of the prior art, and proposes an excellent pump container in which the container can be made compact and the outside air can be smoothly and quickly introduced into the container body. is there.

[0008]

In order to solve the above-mentioned problems, a container according to the present invention comprises a cylinder 4 having an air supply valve into the container body 1 at the upper portion thereof, and an upper surface of the cylinder 4 having a lid plate 15 The head is provided with a nozzle 25 having a nozzle 25 at the upper end of a stem 55 which is provided with a cylindrical piston 21 which moves vertically in the cylinder 4 at the lower part and which penetrates through the cover plate 15 and projects upward while being closed by the 26 has an actuating member 20 attached thereto, and is configured to be capable of being locked in a pushed-down state against the bias of the actuating member 20, and at the time of the actuating member being pushed-down and locked, a liquid flow with the inside of the container body 1 The head 26 is constructed so that the passage can be blocked, and the liquid in the container body 1 is sucked up by the vertical movement of the operating member 20.
A pump container configured so as to be discharged from the nozzle 25 of the above, which is slidable vertically in the inner periphery of the stem 55 protruding window hole of the lid plate 15 and has a small gap between the stem 55 and the stem 55. A hole opening / closing member 52 is provided which has a sliding cylinder 46 which is opened and fitted, and a sealing cylinder 45 which is slidably fitted to the inner circumference of the cylinder 4 extending from the lower outer periphery of the cylinder 46. Therefore, the hole opening / closing member 52 is provided with the operating member 20 when the operating member is pushed down and locked.
The sealing cylinder 45 lowers and fixes the air supply valve hole 6 at the closed position, and when the operating member 20 is at the highest position, the operating member 20 raises and locks the air supply valve hole opening position. .

A container according to a second aspect of the present invention is the above pump.
The pump container according to claim 1, which is a foam discharging pump container having a foaming structure inside.

A container according to a third aspect of the present invention is a cylinder 4
A cylindrical connecting portion 54 is provided which penetrates through the central portion of the bottom wall and stands up at the lower end inside the cylinder, and an intake hole 77 communicating with the inside of the container body 1 is formed upstream of the suction valve 10 provided in the connecting portion 54. At the same time, a foaming structure is provided in which a foaming layer 81 is provided at the connecting portion downstream of the air intake hole 77, and the upper surface of the connecting portion 54 is liquid-tightly closed by the lower end of the stem 55 when the operating member 20 is pushed down and locked. The pump container according to claim 2 is formed.

According to a fourth aspect of the present invention, a container is provided with an air cylinder having a large diameter in the upper portion and a liquid cylinder having a small diameter in the lower portion. It is closed with a cover plate and vertically fixed in the container body, and the large and small diameter stems are fitted from the large and small diameter pistons fitted in the both cylinders, and the small stem top is fitted into the large diameter stem. A large-diameter stem is pierced through the cover plate to stand upright, and an operating member having a push-down head with a nozzle is attached to the upper end of the large-diameter stem, and the operating member is pushed down against the urging force to engage at the pushed-down position. A pump container for discharging bubbles, which is a screw cylinder (1) protruding from the cover plate (15) and the pressing head (26) for locking the operating member (20) at the pressing position.
7 and 41 are screwed together, and at the time of screwing, the air supply valve hole 6 on the upper part of the air cylinder is fitted to the outer surface of the large diameter stem 23 so that the upper end cylinder portion is the large diameter stem through hole of the cover plate. The sealing cylinder 45, which is integrally attached to the sliding cylinder 46 sandwiched between the upward step 18 and the lower end of the first engaging projection 39 on the outer surface of the large-diameter stem, is fitted into the air cylinder. Further, when the operating member 20 is raised, the sliding cylinder with a sealing cylinder 46 is pushed up by the large-diameter cylindrical piston, so that the large-diameter cylindrical piston can be closed.

[0012]

[Operation] By pushing down and locking the operating member 20,
The hole opening / closing member 52 closes and fixes the air supply valve hole 6 of the cylinder 4 by the sealing cylinder 45, and blocks the liquid flow path from the inside of the container body 1.

When the actuating member 20 is unlocked and raised, the actuating member 20 pushes up the hole opening / closing member 52, and the air supply valve hole 6 is opened, and the sealing cylinder 45 and the sliding cylinder. 46 When the actuating member 20 is moved up and down for pouring liquid or bubbles by being locked by the frictional force of the outer contact surface,
Since the valve hole 6 is locked in the opened state, it is possible to always and smoothly introduce the outside air into the container body.

Further, in the container according to the third aspect, since the air for foaming is introduced from the container body, smooth gas-liquid mixing can be performed, and good foaming and foam discharge can be performed. .

Further, in the container according to the fourth aspect, as shown in FIG. 7, the actuating member 20 is pushed down to the lower limit against the urging force and projected from the lid plate 15 and the pushing down head 26. Screw 1
In the state where 7 and 41 are screwed together, the sealing cylinder 45 closes the valve hole 6 of the air supply valve. The sealing cylinder is inserted into the large-diameter stem through hole of the cover plate 15 and is protruded from the sliding cylinder 46 slidably fitted to the outer surface of the large-diameter stem 23.
The upper end of the sliding cylinder, which is attached to the outer periphery and has the second engaging projection 48 provided on the outer surface, is attached to the upward step 18 provided in the large diameter stem through hole of the cover plate 15 and the outer surface of the upper portion of the large diameter stem. First engaging ridge
Since the lower end 39 is clamped by the lower end, the sealing cylinder 45 does not come off from the valve hole 6. Further, as shown in FIG. 8, when the actuating member is pushed up to the upper limit by the urging force, the large diameter cylindrical piston 21 closes the valve hole 6.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

The container of the present invention is entirely made of synthetic resin or the like.

According to the container of the present invention, a cylinder having an air supply valve to the inside of the container at the upper portion is closed and fixed vertically by closing the upper surface of the cylinder with a cover plate and vertically moving the inside of the cylinder. It has an operating member with a moving piston provided at the bottom and a downward pressing head with a nozzle attached to the upper end of the stem protruding upward through the cover plate, and the operation member in the pressed state against the bias of the operating member. In addition to being able to stop, the liquid flow path to the inside of the container can be blocked when the operating member is pressed down and locked, and the liquid inside the container is sucked up by the vertical movement of the operating member and poured out from the nozzle of the head. The present invention is applied to a container provided with a pump configured as described above, and is provided with a hole opening / closing member having a special configuration.

FIGS. 1 and 2 show an embodiment of the invention of claim 1, wherein 1 is a container and 50 is a pump.

The container body 1 is constructed by erecting the mouth / neck portion 2 from the upper end of the tubular body portion.

The pump 3 mainly comprises a mounting cap 51, a cylinder 4, an operating member 20, a hole opening / closing member 52 and the like.

The mounting cap 51 has a cylindrical shape with a lower end face opening formed by extending a cover plate 15 from the upper end edge of the mounting cylinder 8 screwed onto the outer periphery of the container neck 2 and has a circular shape at the center of the cover plate 15. A lid plate 15 having a window hole and a small gap from the outer peripheral edge of the window hole.
A screw cylinder 17 having a thread on its outer periphery is provided upright to lock the operating member 20 in a lowered state from the upper surface.

The cylinder 4 has a bottomed cylindrical shape in which a peripheral wall is erected from the peripheral edge of the bottom wall, and the upper end of the peripheral wall is fitted and fixed to the inner surface of the reduced diameter portion formed at the upper end of the mounting cylinder 8 to form the mounting cylinder 8. The container body mouth / neck portion 2 is fixed so that a predetermined width can be inserted therebetween, and the lower portion is configured to hang down to the upper portion of the container body. still,
In the figure, 53 indicates packing.

The bottom wall of the cylinder 4 is provided with a cylindrical connecting portion 54 penetrating its central portion and having its upper end standing upright in the lower portion of the cylinder 4. The upper end is opened and fixed to the lower portion of the connecting portion 54. A suction pipe (11) is provided, the lower end of which is suspended from the inside of the body of the container. A suction valve 10 is provided downstream of the suction pipe 11 of the connecting portion 54, and the suction pipe 10 is connected via the suction valve 10.
The upper end of 11 communicates with the inside of cylinder 4.

The operating member 20 further comprises a stem 55, a push-down head 26, and a cylindrical piston 21.

The stem 55 has a cylindrical shape with a bottom, a flange 56 extends outward from the outer periphery of the lower end, an annular projection 57 is provided at a predetermined position inside the upper surface of the flange 56, and a predetermined position outside the lower surface. An annular protrusion 58 for sealing, having an inner peripheral surface formed in a taper shape, is provided vertically. Further, the lower part of the stem is formed to be thinner from the top and bottom, and one or more through holes 59 that allow the inside of the stem 55 and the inside of the cylinder 4 to communicate with each other are bored in this thin portion. Further, a double-cylindrical locking cylinder 60 is integrally hung above the outer edge of the lower surface of the thick portion and above the through hole 59.

The push-down head 26 has a nozzle 25 projecting forward from the tip of a cylindrical outer cover 61 whose lower end surface is open, and the inside of the outer cover 61 is connected to the inside of the stem 55 at one end. A flow path 62 is formed to connect the end to the base end of the nozzle 25, and the screw cylinder 17 of the mounting cap 51 is provided inside the peripheral wall of the cover 61.
It has a screw cylinder 41 that is screwed onto the outer periphery.

The cylindrical piston 21 is fitted to the inner peripheral surface of the cylinder 4 such that the outer peripheral edge thereof is liquid-tight, air-tight and slidable, and
The inner peripheral edge portion is fitted and attached to the outer peripheral portion of the stem 55 so as to be vertically movable within a predetermined width. The through hole 59 is opened when the stem 55 descends, and is closed when the stem 55 rises.

In this embodiment, the stem 21 extends from the position where the lower surface of the top plate 27 contacts the upper surface of the flange 56 to the position where the upper surface of the top plate 27 contacts the lower surface of the locking cylinder 60.
It is fitted so that it can move up and down relatively with respect to 55, and is provided around the inner peripheral edge of the top plate portion 27, and the locking cylinder 60
The inner surface has a short tubular inner sliding portion 64 that fits the upper edge in a liquid-tight, air-tight and slidable manner. Then, when the operating member 20 descends, the pressure inside the cylinder 4 below the piston 21 raises relative to the stem 55 to allow communication between the inside of the cylinder 4 and the inside of the stem 55. When the ascends, the upper surface of the flange 56 contacts the lower surface of the top plate 27, and the annular projection 57 contacts the inner surface of the top plate 27 so that the inside of the cylinder 4 and the inside of the stem 55 are shut off from each other. ing.

The actuating member 20 is constantly urged upward by a coil spring 37 as an elastic member interposed between the outer peripheral edge of the lower surface of the flange 56 and the upper surface of the cylinder bottom wall. In addition, when transporting or storing, push down the head 26
The screw cylinder 41 of the mounting cap 51 is fixed to the screw cylinder 17 of the mounting cap 51 without moving up and down. At this time, the annular projection 58 has a lower surface protruding from the outer periphery of the connecting portion 54 of the cylinder 4. The cylinder 4 and the connecting portion 54 are brought into contact with the upper surface so as to block the inside of the cylinder 4 and the inside of the connecting portion 54 so that a reliable closed state can be maintained.

The hole opening / closing member 52 is slidable up and down on the inner peripheral surface of the window of the mounting cap 51, and is fitted with the stem 55 with a small gap. And a ring-shaped sealing cylinder 45 having upper and lower edges projecting outward is provided around the outer peripheral edge of the flange-shaped wall 47. And an engaging ridge 48 slidably fitted on the inner surface of the screw cylinder 17, and the ridge 48 is formed on the inner surface of the screw cylinder 17 and faces upward.
The sealing cylinder 45 closes the air supply valve hole 6 formed in the upper portion of the cylinder when the upper cylinder 18 is abutted and locked. Further, at this time, the downwardly facing stepped portion 66 provided at the upper end of the outer periphery of the stem 55 is pushed down to the lowest position, so that the upper surface of the sliding cylinder 46 and the engaging protrusion 48 are provided between the lower surface of the stepped portion 66 and the upper surface of the upwardly facing stepped portion 18. The lower surface is sandwiched and fixed.

When the container is transported or stored, the operating member 20 is pushed down as shown in FIG.
The actuating member 20 does not move inadvertently by being screwed into the cylinder 17, and at this time, the annular projection 58 causes the cylinder 4 to move.
Since the upper end opening of the connecting portion 54 is closed by being pressed against the upper surface of the bottom wall and the hole opening / closing member 9 closes the air supply valve hole 6, it is possible to prevent the liquid from leaking out even if the container is accidentally tilted.

In use, when the screw cylinder 41 is unscrewed, the coil spring 37 acts to raise the operating member 20 so that the connecting portion 54 communicates with the inside of the cylinder 4, and the cylindrical piston
21 descends relative to the stem 55, the through hole 59 is blocked, and the inside of the cylinder 4 becomes negative pressure, so that the liquid in the container body 1 is sucked up by the suction pipe 11 and passes through the suction valve 10. Is introduced into the cylinder 4. At this time, the cylindrical piston 21 pushes the hole opening / closing member 9 upward, and the air supply valve hole 6 is opened.

In this embodiment, the top plate portion 27 of the piston 21 is
The piston is constructed so that the lower surface of the flange wall 47 of the hole opening / closing member 52 is pushed up by the pressing cylinder 70 provided upright on the peripheral edge of the upper surface.
21 and the sealing cylinder 45 are configured so as not to deform by contact.
At the highest position of the operating member 20, as shown in FIG.
Since the piston 21 closes the valve hole 6, the liquid in the container will not leak out even if the container is accidentally tilted when the operating member 20 is at the highest position.

Next, when the head 26 is pushed and the actuating member 20 is pushed down, the inside of the cylinder 4 below the tubular piston 21 is pressurized and the tubular piston 21 rises relative to the stem 55, so that The liquid pressurized in communication with the inside of the stem 55 passes through the inside of the stem 55 through the through hole 59 and is discharged from the nozzle 25.

The hole opening / closing member 52 stays in the raised position when the actuating member 20 for liquid pouring is moved up and down, and is slid by the step portion 66 when the head 26 is screwed again when not in use. The upper surface of the moving cylinder 46 is pushed down to surely descend to the closed position of the air supply valve hole 6.

FIG. 3 and FIG. 4 show another embodiment of the present invention of claim 1, and in this embodiment, the screw cylinder of the mounting cap 51 is shown.
17 is formed to be slightly longer, and a fitting cylinder 67 is hung vertically via a flange extending inward from a predetermined position on the inner surface of the fitting cylinder 67.
67 The outer surface of the sliding cylinder 46 of the hole opening / closing member 52 is slidably fitted on the inner peripheral surface of the hole opening / closing member 52, and a plurality of vertical protrusions in the circumferential direction are formed on the inner surface of the sliding cylinder 46.
68 is provided vertically, and a small gap is formed by fitting the outer periphery of the stem 55 with minimum friction.

The head does not have a vertical wall portion of the outer cover,
The screw cylinder 41 also serves as the vertical wall portion of the outer cover, and the internal configuration of the pump is such that the position of the coil spring 37 is provided on the upper portion outside the cylinder 4, and the outer peripheral edge portion of the annular protrusion 58 is the lower end inside the cylinder 4. The inner surface of the reduced diameter portion of the portion is fluid-tightly fitted and sealed. Further, reference numeral 69 in the figure denotes a guide projection provided on the outer peripheral portion of the flange 56 in the circumferential direction. Further, this is an example in which the pressing cylinder 70 is vertically provided from the lower surface of the flange-shaped wall 47 of the hole opening / closing member 52, and the cylinder 70 is formed with a plurality of circumferential slits.

The container of the second aspect of the present invention is a pump container for discharging bubbles, which comprises the basic structure of the pump of the first aspect of the invention and further has a pump having a foaming structure inside thereof.

FIGS. 5 and 6 show an embodiment of the second invention and the third invention, and basically, FIGS.
Since the structure is similar to that of the container according to the first aspect of the present invention shown in FIG. 1, only the different parts will be described and the remaining parts will be given the same reference numerals.

In this embodiment, the suction valve 10 of the connecting portion 54 is
An intake hole 77 communicating with the inside of the container body 1 for introducing air above the liquid contained in the container body is formed upstream, and a liquid mixed with the introduced air is supplied to the connecting portion 54 downstream of the suction valve 10. A foaming layer 81 for foaming is provided.

A fitting outer cylinder 71 is erected from the outer peripheral edge of the circular window hole formed in the center of the bottom wall of the cylinder 4 to the inner lower portion of the cylinder 4, and a flange extending from the outer peripheral upper end edge of the outer cylinder 71.
A fitting inner cylinder 73 is vertically provided via 72, and the fitting cylinders 73,
A connecting member 74 to which a fitting cylinder portion 74a is fitted and fixed is provided between 71 to form a connecting portion 54. The connecting member 74 has a top wall 74c extending from the upper edge of the peripheral wall 74b, the fitting cylinder portion 74a standing up above the outer peripheral edge of the top wall 74c, and a through hole 75 formed in the central portion of the top wall 74c. I have set up. A plurality of vertical ribs 76 in the circumferential direction are vertically provided on the upper end of the inner surface of the peripheral wall 74b to regulate the fitting upper end position of the suction pipe 11, and the intake holes 77 are provided at predetermined positions between the vertical ribs 76. is doing.

The suction valve 10 is integrally formed at the lower end of the fitting inner cylinder 73, and has a plurality of base end portions connected to the lower end of the inner circumference of the fitting inner cylinder 73 at a predetermined circumferential interval. The other ends of the arc-shaped elastic portions 78 are integrally connected to the outer periphery of the valve plate 79 with a predetermined circumferential interval, and the valve plate 79 closes the upper surface of the through hole 75 in a liquid-tight manner. Further, the foaming layer 81 is composed of a mesh having a peripheral edge portion fixed to the upper surface of the annular projection 80 protruding from the inner peripheral upper surface of the flange 72. The outer peripheral surface of the annular projection 80 is formed in a tapered shape that spreads outward and downward.
The foaming layer 81 is not limited to the mesh, and other porous bodies can be used.

A foam regulating layer 82 made of a mesh is laterally provided on the upper end of the stem 55. The foam regulation layer 82 may be made of another porous material like the foaming layer 81.

During transportation and storage, the operating member 20 is pushed down and locked so that the operating member 20 does not move carelessly.
At this time, the lower surface of the annular projection 58 is the flange 72 at the bottom of the cylinder 4.
While pressing the upper surface to close the upper end opening of the connecting portion 54,
Since the hole opening / closing member 52 closes the air supply valve hole 6, it is possible to prevent the liquid from leaking out even if the container is accidentally tilted.

In use, when the actuating member 20 is raised, the liquid in the container body 1 is sucked up by the suction pipe 11, while the air above the liquid is introduced through the suction hole 77 and
The liquids are mixed, and this mixed liquid is connected through the suction valve 10 to the connecting portion 54.
It is foamed through the upper foaming layer 81 and introduced into the cylinder 4. At this time, the cylindrical piston 21 pushes the hole opening / closing member 52 upward to open the air supply valve hole 6.

Next, when the head 26 is pushed and the actuating member 20 is pushed down, the bubbles pass through the through hole 59 through the stem 55 and the nozzle 25.
More pouring out. At this time, the bubbles are further uniformized by the bubble-regulating layer 82, and are ejected from the nozzle 25.

FIGS. 7 and 8 show an embodiment of the present invention as claimed in claim 4, wherein 1 is a container body for raising the mouth / neck portion 2.

A cylinder member 3 is suspended in the container body. The member has an upper part formed in a large diameter air cylinder 4 and a lower part formed in a small diameter liquid cylinder 5, and an air supply valve hole 6 into the container body is formed in the upper part of the air cylinder.
An outward flange 7 attached to the upper end of the air cylinder is placed on the upper end surface of the mouth and neck through a packing, and screwed onto the outer surface of the mouth and neck. Is pinched. Further, a fitting cylinder 9 is erected from the upper end of the air cylinder, a liquid suction valve 10 is provided in the bottom of the liquid cylinder, and a suction pipe 11 is suspended in communication with the valve hole.

On the outer surface of the fitting cylinder 9, there is fitted a fitting cylinder 16 that hangs from the outer periphery of the cover plate 15 that closes the upper end opening surface of the air cylinder. The lid plate has an opening at the center, and a screw cylinder 17 having a male screw is erected on the outer surface from the peripheral edge of the opening. The inner surface of the lower part of the screw cylinder has an upward step 18 for holding the upper end of the sliding cylinder, which will be described later.
Is provided.

Reference numeral 20 denotes an operating member, which has a large-diameter cylindrical piston 21 fitted in the air cylinder 4 and a small-diameter cylindrical piston 22 fitted in the liquid cylinder 5, from which a large diameter and The small-diameter stems 23 and 24 are erected by fitting the small-diameter stems into the large-diameter stems, and a pressing head 26 with a nozzle 25 is attached to the upper end of the large-diameter stems. In the illustrated example,
The large-diameter cylindrical piston 21 is a separate member from the large-diameter stem 23, and the short cylinder 27a is erected from the inner circumference of the top plate 27 of the large-diameter cylindrical piston 21.
Further, the elastic cylinder 28, which expands the upper part upward and outward through the inwardly projecting portion from the upper end of the short cylinder, is erected. The lower portion of the large diameter stem 23 has a large inner diameter portion 29, and the upper end of the elastic cylinder is watertightly pressed against the inner surface of the large inner diameter portion to be vertically movable. Between the inner surface of the elastic cylinder 28 and the outer surface of the small-diameter stem 21 and between the large-diameter and small-diameter stems except for the upper end of the small-diameter stem, a small gap is provided as the air outflow passage 30 and communicates with the upper end of the small gap. A small through hole 31 is formed in the small diameter stem, and a liquid discharge valve 32 is provided on the inner surface of the small diameter stem portion below the small through hole 31.

The top plate portion 27 of the large-diameter cylindrical piston 21 is provided with a suction valve 33 for sucking air. Large diameter cylindrical piston
The reference numeral 21 designates a small-diameter stem that allows the elastic cylinder 28 to move up and down within a range in which it does not come out of the large inner diameter portion 29, and also serves to prevent the withdrawal of the elastic cylinder 28 and opens and closes the inlet to the air outflow passage 30. 24 An outwardly facing flange 36, which is provided on the outer surface and has a reinforcing plate 35 attached to the lower surface thereof, projects from the lower end portion of the ridge, and the actuating member 20 is provided between the lower surface of the flange and the inner bottom plate connecting between the cylinders. A coil spring 37 for biasing is interposed.

The upper surface of the small-diameter stem 24 is in contact with the lower surface thereof, and the foam member 38 having foam nets stretched on the upper and lower end surfaces of the short cylinder is fitted into the upper portion of the large-diameter stem 23. A first engaging projection 39 is provided vertically on the outer surface of the upper part. The lower part of the peripheral wall 40, which hangs from the outer periphery of the top wall of the pressing head, has a large inner diameter and is provided with an internal thread on its inner surface to form a threaded cylinder 41 that can be screwed into the male thread. A guide rod 42 stands up from the bottom of the liquid cylinder.

A sealing cylinder 45 is fitted in the air cylinder portion above the large-diameter cylindrical piston 21. The cylinder is water-tightly pressed against the inner wall surface of the air cylinder with the upper and lower ends as large outer diameter parts,
Further, an outer circumference of a flange-shaped wall 47 protruding from a sliding cylinder 46 which is inserted into the inner circumference of the lid plate 15 and is fitted to the outer surface of the large diameter stem so as to be vertically movable is attached to the middle portion of the cylinder. On the outer circumference of the upper end of the sliding cylinder 46, there is provided a second engaging projection 48 which engages with the upper surface of the upward step 18 of the inner circumference of the cover plate 15, and as shown in FIG. With the member 20 pressed down against the urging force and the screw cylinders 17 and 41 screwed together, the second engaging projection 48 extends to the upward step 18, and the first engaging member on the outer surface of the large-diameter stem upper portion. The lower end of the engaging ridge 39 is pressed against the upper end surface of the sliding cylinder 46, so that the upward step 18 provided in the large-diameter stem through hole and the first engaging ridge 39 are joined to the second engaging ridge 48.
The upper end of the sliding cylinder having the above is sandwiched, and at this time, the sealing cylinder 45 is provided so as to seal the valve hole 6.

As shown in FIG. 8, when the actuating member 20 is pushed up to the upper limit by unscrewing the screw cylinders 17 and 41, the sliding cylinder 46 is brought into contact with the lower end surface of the top plate 27 of the large-diameter cylindrical piston 21. Is pushed up together with the flange-shaped wall 47 and the sealing cylinder 45, and when the flange-shaped wall 47 comes into contact with the lower surface of the lid plate 15 and stops, the large-diameter tubular piston 21 and the elastic cylinder 28 are brought into contact with the lower end surfaces of the piston. The small-diameter stem 24 having the pushing-up circumferential projection 34 also reaches the upper limit and stops. At this time, the valve hole 6 is a large-diameter cylindrical piston.
21 seals.

[0056]

As described above, according to the present invention, the sliding member which is vertically slidable in the inner periphery of the stem 55 protruding window of the cover plate 15 and is fitted with a small gap between the stem 55 and the sliding member. Since the hole opening / closing member 52 having the moving cylinder 46 and the sealing cylinder 45 slidably fitted to the inner circumference of the cylinder 4 from the lower outer circumference of the cylinder 46 is provided, the air supply valve hole is provided. The opening and closing of 6 is not performed by the tongue hanging from the valve cylinder body fitted to the outer surface of the cylinder as in the conventional case, but is performed by the sealing cylinder 45 fitted to the inner surface of the cylinder. There is no adverse effect such as the valve cylinder hitting the neck of the container body when it is hung down, and the tongue is not displaced from the valve hole, and the gap between the outer surface of the cylinder and the inner surface of the neck of the container body can be narrowed. Therefore, the entire container can be made compact.

Further, the hole opening / closing member 52 is lowered and fixed to the air supply valve hole closing position by the sealing cylinder 45 by the operating member 20 when the operating member 20 is pushed down and locked, and when the operating member 20 is raised to the maximum. The operating member 20 is configured to be raised and locked at the air supply valve hole opening position,
Further, when the operation member 20 is pushed down and locked, the liquid flow path to the inside of the container is cut off. Therefore, the liquid accumulates on the upper part of the piston at the time of transportation and storage before using the container, so that the container is used for the first time. In this case, it is possible to prevent the inconvenience that the liquid may be blown out from the opening where the stem moves up and down, and the valve hole 6 is open when the pressing head 26 is moved up and down to inject the liquid or bubbles at the time of use. Therefore, the air can be smoothly and quickly introduced into the container body.

In addition to the above effects, the container according to the third aspect of the present invention uses one cylinder for both liquid and air. Therefore, the structure is simpler than that of the conventional container of this type, and the container is manufactured. It is easy to remove, and the size of the pump can be made small, so that the mouth and neck of the container body can be made small, and there are less structural restrictions than the conventional foam discharge pump container that can be made only relatively large. . In addition, since the air in the container body can be smoothly and quickly supplied from the intake hole 77, good bubbles can be formed.

Further, in the container described in claim 4, the opening and closing of the air supply valve hole 6 in the upper part of the air cylinder 4 is performed by the tongue hanging from the valve cylinder body fitted to the outer surface of the air cylinder as in the conventional case. Rather than performing it with the sealing cylinder 45 or the large-diameter cylindrical piston 21 fitted to the inner surface of the air cylinder, when the cylinder member is hung inside the container, the valve cylinder or the like hits the neck of the container body and the tongue is touched. Since there is no adverse effect such as the piece shifting from the valve hole and the gap between the outer surface of the air cylinder and the inner surface of the container body neck portion can be narrowed, the entire container can be made compact. Further, in the state where the operating member is pushed down and the screw cylinder is screwed, the cylinder upper end portion which is fitted to the outer surface of the large-diameter stem and has the second engaging projection 48 provided on the outer surface is formed into the large-diameter stem through hole. Upward step 18 and the first engaging projection on the large diameter stem
39 Sealing cylinder that is integrated with the sliding cylinder 46 that is sandwiched between the lower end
Since 45 is fitted to the inner surface of the upper portion of the air cylinder 4 to close the valve hole 6, the large diameter cylindrical piston 21 fitted in the air cylinder when the screwing is removed and the operating member is raised. Can push up the sliding cylinder 46 with the seal cylinder, and the large diameter cylindrical piston 21 can close the valve hole. Therefore, even when the container in which the screw cylinders 17 and 41 are screwed together cannot be used, it is activated again. The valve hole 6 is closed at any time when the container can be used in which the member is lifted up against the biasing force, so that liquid leakage from the valve hole due to the container falling or the like can be prevented. Further, even when the operating member is pushed down and locked again to make it unusable, the first engagement protrusion 39 of the large diameter stem pushes down the sliding cylinder 46,
Also, the lower end of the first engaging protrusion and the upward step of the large-diameter stem through hole
18 and the upper end of the sliding cylinder are sandwiched to move the sealing cylinder 45 to the valve hole closing position, so that the valve hole can be always reliably closed.

[Brief description of drawings]

FIG. 1 is a partial cutaway side view showing an embodiment of the present invention.

FIG. 2 is a side view of a partially cutaway main part of the working member in the most raised state of the embodiment.

FIG. 3 is a side view of a partly cutaway main portion showing another embodiment of the first aspect of the present invention.

FIG. 4 is a partial cutaway side view of the operating member in the most raised state of the embodiment.

FIG. 5 is a side view of a partly cutaway essential part showing an embodiment of the present invention.

FIG. 6 is a partial cutaway side view of the operating member in the most raised state of the embodiment.

FIG. 7 is a half sectional view showing an embodiment of the present invention.

FIG. 8 is a half cross-sectional view of the working member in the most raised state of the embodiment.

[Explanation of symbols]

1 ... Container body, 4 ... Cylinder, 10 ... Suction valve, 15 ... Lid plate,
17 ... Spiral tube, 18 ... Upward step, 21 ... Cylindrical piston, 20 ... Actuating member, 23 ... Large diameter stem, 25 ... Nozzle, 26 ... Depressing head, 39 ... First engaging ridge, 41 ... Screw Cylinder, 45 ... Sealing cylinder, 46
… Sliding cylinder, 50… Pump, 52… Hole opening / closing member, 54… Cylinder connecting part, 55… Stem, 77… Intake hole,

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B05B 1/00-1/36 B05B 11/00 B65D 47/34 B65D 83/00

Claims (4)

(57) [Claims] 1. A cylinder 4 having an air supply valve to the inside of the container body 1 at its upper part is closed and fixed in the container body by closing the upper surface of the cylinder 4 with a lid plate 15, and the cylinder 4 is moved vertically. The operating member 20 is provided with a cylindrical piston 21 at the lower part and penetrating through the cover plate 15 and protruding upward to the upper end of the stem 55, and the pressing head 26 with the nozzle 25 is attached to the operating member 20.
Of the actuating member 20 is configured to be capable of being locked in a pressed state against the urging force of the actuating member, and to be capable of blocking the liquid flow path from the inside of the container body 1 when the actuating member is pressed down and engaged. In a pump container provided with a pump 50 configured to suck up the liquid in the container body 1 by vertical movement and to discharge the liquid from the nozzle 25 of the head 26, in the inner periphery of the stem 55 protruding window hole of the lid plate 15, For a seal that has a sliding cylinder 46 that is vertically slidable and fits with a small gap between it and the stem 55, and that is slidably fitted to the inner circumference of the cylinder 4 from the lower outer circumference of the cylinder 46. A hole opening / closing member 52 formed by extending a cylinder 45 is provided.
Is fixed to the air supply valve hole 6 closed position by the sealing cylinder 45 by the actuating member 20 when the actuating member is pushed down and locked, and when the actuating member 20 is fully raised.
A pump container characterized in that the pump container is configured so as to be raised and locked at an opening position of an air supply valve hole by 20. 2. The pump container according to claim 1, which is a foam discharging pump container having a foaming structure inside the pump 50. 3. A cylindrical connecting portion 54, which penetrates through the central portion of the bottom wall of the cylinder 4 and stands up at the upper end in the lower portion of the cylinder, communicates with the inside of the container body 1 upstream of the suction valve 10 provided in the connecting portion 54. A foaming structure is provided in which a foaming layer 81 is provided at a connecting portion downstream of the intake hole 77, and the lower surface of the stem 55 lowers the upper surface of the connecting portion 54 when the actuating member 20 is pushed down and locked. The pump container according to claim 2, wherein the pump container is configured to be tightly closed. 4. A cylinder member having an upper air cylinder having a large diameter and a lower liquid cylinder having a small diameter and having an air supply valve to the inside of the container in the upper part of the cylinder, and closing the upper surface of the air cylinder with a cover plate. While fixing it vertically,
From the large and small diameter pistons fitted in both cylinders, the large and small diameter stems are fitted by fitting the upper part of the small diameter stem into the large diameter stem and penetrating the large diameter stem into the lid plate. In the foam discharging pump container in which an operating member having a pressing head with a nozzle attached thereto is provided on the upper end of the stem and the operating member is pressed down against the bias and locked at the pressing position, the operating member 20 is pushed. The locking at the lowered position is performed by screwing the screw cylinders 17 and 41 projecting from the cover plate 15 and the pressing head 26, and at the time of screwing, the air supply valve hole 6 in the upper part of the air cylinder.
Was fitted to the outer surface of the large-diameter stem 23, and the upper end tube portion was sandwiched between the upward step 18 of the large-diameter stem through hole of the cover plate and the lower end of the first engaging projection 39 on the outer surface of the large-diameter stem upper portion. The sealing cylinder 45, which is integrally attached to the sliding cylinder 46 and fitted into the air cylinder, and the sliding cylinder with the sealing cylinder 46, when the operating member 20 is elevated, has a large diameter cylindrical shape. A foam discharge pump container, wherein each of the large-diameter cylindrical pistons is formed so as to be able to be closed by being pushed up by the piston.