JPH08238446A - Pressure accumulation system pump dispenser - Google Patents

Abstract

PURPOSE: To provide a pressure accumulation system pump dispenser with improved operability. CONSTITUTION: A piston mechanism 16 comprising a nozzle mechanism 14 with a pushbutton, a cylinder 18, and a piston 20 is installed in parallel at the top of a container 12 so that the piston 20 can be operated from the top. A recession 23 is formed on the upper surface of the piston 20, and the pushbutton 14a is placed in the recession 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-accumulation pump dispenser for pressurizing air in a container by a pump mechanism to accumulate the pressure, and using pressurized air as a pressurizing medium to cause liquid in the container to flow out from a nozzle mechanism.

[0002]

2. Description of the Related Art Dispensers using chlorofluorocarbon as a pressurizing medium for pressurizing a liquid are known. In this dispenser, a Freon gas is contained in a metal container, and a suction tube is extended downward from a nozzle mechanism. Then, the CFC gas pushes the liquid surface to push up the liquid, and the liquid is caused to flow out through the suction tube and the nozzle mechanism.

The nozzle mechanism includes a push button having an outflow passage communicating with the suction tube, and an outflow control valve (one-way valve) which is opened when the push button is pushed down.
And a swirlizing means provided behind the outlet at the tip of the outflow passage. The liquid rises in the suction tube,
While standing by, when the push button is pushed down, the outflow control valve is opened, the liquid flows through the outflow control valve, is swirled by the swirlization means, and is sprayed (outflowed) from the outlet. There is also a nozzle mechanism that does not have a vortexing means, in which case the liquid is discharged as a jet rather than as a spray.

Dispensers using chlorofluorocarbon as a pressurized medium are widely used because the liquid can flow out only by pushing the push button and the operation is not complicated. However, due to environmental problems such as destruction of the ozone layer by CFCs, a dispenser that uses compressed air as a pressure medium instead of CFCs is being replaced.

Dispenser using pressurized air as a pressurized medium
Then, it is necessary to pressurize the air, and a pump mechanism for pressurizing the air is mounted. Air is pressurized by the pump mechanism and sent into the container to pressurize the air in the container. Then, this pressurized air functions as a pressurized medium instead of CFC gas. In a dispenser using this pump mechanism, pressure is stored, that is, because pressure is stored, it is called a pressure-accumulation pump dispenser.

In the accumulator pump dispenser,
Since it does not require much pressure resistance, it has a structure almost the same as a CFC gas dispenser, except that a pump mechanism is provided that allows the container to be molded from plastic.

As the pressure-accumulation pump dispenser, there are a pump mechanism provided at the upper end (top) and a lower end (bottom) of the container. In a pressure accumulating pump dispenser in which a pump mechanism is provided on the top of a container, for example, as shown in Japanese Patent Publication No. 54-041729 (Sand Glen Co., Ltd.), a cap on the top of the container serves as a piston of the pump mechanism. By lowering the cap (piston), the air inside the cap is pressurized, and the pressurized air flows through the nozzle mechanism through the nozzle mechanism in the opposite direction to when it is flowing out and is sent into the container to pressurize the air inside the container. Then, after the pressurization, the cap is removed and the push button of the nozzle mechanism is pushed down, so that the liquid flows out from the nozzle mechanism.

Further, in a pressure accumulating pump dispenser having a pump mechanism provided at the bottom of a container, for example, US Pat. Nos. 3,955,720 (MALONE) and 4,492,320 (TADA) are used.
As shown in, the pump mechanism is composed of a cylinder and a piston, and the cylinder extends upward from the bottom of the container coaxially with the container. When the piston reciprocates in the cylinder,
The air in the cylinder is pressurized and sent into the container from the outflow control valve (secondary valve) to pressurize the air in the container, and after pressurizing the push button, the liquid is discharged from the nozzle mechanism. It

[0009]

Since the accumulator pump dispenser does not use CFC gas, it does not damage the natural environment. Also, it is possible to mold all the constituent members including the container from plastic, and the constituent members can be melted and easily reused. As described above, the accumulator pump dispenser is a so-called "earth-friendly" one (that does not damage the environment).

However, in reality, the accumulator pump dispenser is not used so much. As a reason for this, the following problems in operability have been pointed out. If the product of the stroke of the pump mechanism and its effective cross-sectional area is large, the amount of air that can be pressurized in one operation of the pump mechanism (one pumping) increases, and the required accumulated pressure can be obtained with a small number of pumping times. .

Regarding the accumulator pump dispenser using the cap as a piston: (1) The cap must be removed in order to let the liquid flow out, and the operability is poor. Moreover, the removed cap is easily lost. (2) The effective cross-sectional area of the cap can be set to be as large as that of the container, but the lifting distance of the cap (the pump mechanism
Since it is not possible to take a long time, the number of times the cap is moved up and down (the number of times of pumping) is inevitably large, and in this respect also the operability is poor.

Regarding the accumulator type pump dispenser having a combination of a cylinder and a piston as a pump mechanism: (1) Since the pump mechanism is at the bottom of the container, it is necessary to turn over the pump dispenser (reverse operation),
Operability is poor. In particular, there are few daily necessities that require the reversing operation, and the reversing operation itself is not familiar to consumers and is difficult to use.

(2) Since the pump mechanism and the nozzle mechanism are arranged in series in the axial direction of the container, the nozzle mechanism and the suction tube extending from the nozzle mechanism interfere with each other to limit the length of the cylinder. Therefore, the stroke of the piston cannot be made large, and the number of times of pumping is inevitably increased, resulting in poor operability.

An object of the present invention is to provide a pressure-accumulation pump dispenser having improved operability in consideration of the above problems.

[0015]

In order to achieve this object, according to the present invention, a nozzle mechanism having a push button, a piston mechanism including a cylinder and a piston are provided side by side at the top of the container, and a pump mechanism is provided. Is configured to be operated at the top of the container.

[0016]

In this structure, the nozzle mechanism and the pump mechanism are not arranged in series but in parallel, so that the cylinder can be set longer without being disturbed by the nozzle mechanism and the suction tube, and the stroke of the piston can be set. Can be taken large.

Further, it becomes unnecessary to invert the container, which is unfamiliar to the user, and the piston can be moved up and down at the top of the container to pressurize and store pressure.

If a recess is provided on the upper surface of the piston and the push button of the nozzle mechanism is stored in this recess, the cap is unnecessary.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings.

As shown in FIG. 1, a pressure accumulating pump dispenser 10 according to the present invention has a nozzle mechanism at the top of a container 12.
14, the pump mechanism 16 is arranged in parallel. Further, the container 12 is divided into an upper half portion 12U and a lower half portion 12L, molded from plastic, and screwed together.

The nozzle mechanism 14 is well-known and is not an essential part of the present invention, so a detailed description thereof will be omitted. However, a push button 14a having an outflow passage communicating with the suction tube 17 and a push button. It has a known structure including an outflow control valve (one-way valve) which is opened when the valve is pushed down, and a swirlization means provided behind the outflow port at the tip of the outflow passage. For example, the nozzle mechanism shown in FIG. 1 of Japanese Patent Publication No. 3-49831 and the nozzle mechanism shown in FIGS. 1 and 2 of Japanese Patent Publication No. 54-41729 can be used.

Of course, a nozzle mechanism 14 having no vortexing means may be adopted, in which case the liquid is discharged as a jet flow.

Each pump mechanism 16 is composed of a cylinder 18 and a piston 20 which are molded from plastic. The cylinder has an engaging piece 18a at the upper end fitted to the upper half 12U of the container,
The O-ring 21 is sandwiched between the engaging piece 18a and the upper end of the lower half portion 12L of the container to be liquid-tightly assembled in the container 12. Further, the cylinder 18 has a cylindrical piece 18b extending upward, and a chaplet 22 is fitted to this cylindrical piece. Further, another cylindrical piece 18c is extended upward from the cylinder 18, and the nozzle mechanism 14 is fitted to this cylindrical piece.

The piston 20 is formed by being divided into four members of a piston cap 20a, a piston body 20b, a valve holder 20c and a spring holder 20d. The piston cap is at the upper end of the piston body and the valve holder is at the lower end of the piston body. In addition to being fitted, the spring holder is fitted to the lower end of the valve holder with the primary valve 24 interposed.

The primary valve 24 is, for example, Japanese Patent Publication No. 52-45921.
As shown in FIG. 3 of the publication, a valve spring is formed by connecting an annular fixed seat 24a and an inner valve body 24b with a spiral flexible rocking piece 24c. The fixed seat is pressed against the valve seat 20c 'at the lower end of the valve holder by 24d, and the valve element is also pressed against the valve seat by the elastic force of the swing piece. In the embodiment, a plastic compression coil spring is used as the valve spring 24d.

The chaplet 22 has a plurality of inwardly extending projections 22a, for example, four projections 22a separated by 90 °, and these projections are locked in the axial long groove 20b 'on the outer surface of the piston body 20b. The piston 20 can reciprocate in the cylinder 18 without rotating. That is, the protrusion 22a and the long groove 20b 'function as a rotation stopper for the piston 20. Of course, this configuration is an example, and rotation of the piston 20 may be prevented by other configurations.

A return spring 28 is arranged in the cylinder 18 so as to push the piston 20 outward (upward).
In the embodiment, as will be described later, the valve seat 18d of the secondary valve is formed on the cylinder 18, and this valve seat and the spring holder 20d of the piston are formed.
The return spring 28 is located between the two positions, and pushes up the piston 20.

A secondary valve 30 is provided at the lower end of the cylinder 18. The secondary valve 30 includes an annular valve body 30a and a valve spring 30b that presses the valve body against the valve seat 18d of the cylinder. The valve spring 30b is made of a plastic compression coil spring, and the lower end of the valve spring 30b is fitted into the cylinder 18 to allow the secondary valve 30b to
Is arranged. The valve spring 30b is a cylindrical part that extends upwards.
It has 31 and this cylindrical part prevents the valve spring from falling down.
The valve body 30a is evenly pressed by the valve seat 18d to ensure sufficient liquid tightness. The primary valve 24 and the secondary valve 30
The inflow and outflow of air to 18 is controlled.

In this type of dispenser 10, constituent members such as a piston 20 and a nozzle mechanism 14 with a suction tube are attached to a cylinder 18, which is integrated in advance with the cylinder at the center and then incorporated into the container 12. Where the nozzle mechanism
Because the suction tube 17 extending from the bottom of 14 is long,
The lower end of the container may be located outside the container, in which case the lower end of the suction tube must be moved inward.
Can't be built into 12.

Therefore, in the embodiment, the suction tube is
A valve spring 30b of the secondary valve is configured so that the valve 17 can be held. That is, from the lower end of the valve spring 30b, the holding piece 33
The suction tube 17 extends outward from 18 and is held in a holding hole 33a formed in the holding piece. With this configuration,
When installing the cylinder 18 etc. in the container 12,
The lower end of the bush 17 does not come off from the container 12, and the assembly can be done smoothly. Here, if the holding hole 33a is provided with a cut groove, the suction tube 17 can be inserted and held in the holding hole from the side through the cut groove.

As in the embodiment, the pump mechanism 16 is placed on the top (container
Such suction valve 17 can be held by providing the secondary valve 30 on the lower end of the cylinder and arranging the secondary valve 30 at the lower end of the cylinder and forming the valve spring 30b of the secondary valve from plastic.

In the above structure, as shown in FIG.
The piston 20 is pushed upward (outward) by the pushing force of the return spring 28, and when the piston 20 is pushed (lowered) against the pushing force of the return spring, the cylinder valve Air in the cylinder is pressurized between the seat 18d and the spring holder 20d at the lower end of the piston. This pressurized air is applied to the valve spring 30 of the secondary valve.
The valve element 30a is moved away from the valve seat 18d against b, the secondary valve is opened, and the secondary valve is pushed into the container through the inside of the valve spring.
By such so-called pumping, the air in the container is pressurized and accumulated.

Here, except for the pushing force to the piston 20, the piston is pushed back to its upper position (outward position) by the return spring 28. Needless to say, the inside of the cylinder is negatively pressured, and the outside air flows into the cylinder through the primary valve 24.

A vent bar 34 is attached to the upper end of the piston 20. In other words, the vent bar 34 is
Molded from plastic with a body 34a and a head 34b fitted to its top, the head fits into a piston cap 20a at the top of the piston, and the vent bar body extends just above the valve body 24a of the primary valve. There is. Also, the head 34
A vent hole 35 is formed by cutting out a part of b. A rib is provided to reinforce the strength of the vent bar main body 34a.

Since the vent bar 34 is made of plastic, it has an elastic force. When the center of the head 34b is pushed, the vent bar 34
The main body 34a moves downward. Then, the vent bar main body 34a pushes the valve body 24a, separates it from the valve seat 20c ', and opens the primary valve 24. Then, the inside of the cylinder 18 communicates with the outside air via the primary valve 24 and the vent hole 35, and the residual pressure in the cylinder escapes to the outside.

The dispenser 10 is provided with a locking means 36 in order to push the piston 28 against the return spring 28 and lock it in the lower position (pushing position) shown in FIG.

In the embodiment, as shown in FIG. 3, the lock means 36 is a lock plate having bearing shafts 36a on both sides of the central portion and locking claws 36b on the lower end, and swings around the bearing shafts. The lock claw is configured to be locked.

The locking means 36 is provided between the movable side, that is, the piston 20 and the fixed side such as the container 12 or the cylinder 18, and it suffices to lock the movable piston. The piston may be locked by attaching it to the container 12 or the cylinder 18 by locking the locking pawl 36b to the container 12 or the cylinder 18, or conversely, by mounting the locking means 36 on the container 12 or the cylinder 18 and attaching the locking pawl to the piston. May be locked to 20.

In the embodiment, the locking means 36 is attached to the piston 20 so as to move up and down integrally with the piston. That is, as shown in FIGS. 4 and 5 (D), the support portion 21 is provided at the lower end of the inner wall on both sides of the piston cap 20a.
The support shaft 36a of the lock means is inserted from below into the substantially U-shaped support hole 21a and is rotatably held. Further, the lock claw 36b of the lock means can be engaged with the lower end of the cylinder 18 through the hole 12a (see FIGS. 4A and 4B) of the container 12.

Further, locking projections, for example, substantially spherical locking pins 36c are formed at the upper ends on both sides of the locking means 36, and these locking pins are corresponding locking holes 20a 'provided in the piston cap 20a. The locking means is held in the unlocked position by being locked in the (locking recess) (FIG. 4).
(See (A) and (B)). The combination of the locking pin 36c and the locking hole 20a 'is an example of the locking projection and the locking recess, and other combinations such as the locking projection and the locking groove may be used. Also, contrary to the embodiment,
The locking projection may be provided on the piston 20 and the locking recess may be provided on the locking means 36.

In this structure, in FIG. 4A, if the lock piece 36 is pressed above the support shaft 36a which is the swing center,
Since a force in the arrow direction acts on the lock claw 36b under the support shaft, the locking means swings in the arrow direction and the lock claw is disengaged from the cylinder 18 (see FIG. 4 (B)). When the lock claw 36b is disengaged from the cylinder 28 and unlocked by the lock means 36 (unlocked), the piston 20 is released.
Then, the return spring 28 pushes it to the outer position shown in FIG.

As in the embodiment, the locking means 36 has a supporting shaft 36a and a locking claw 36b, and is a swingable locking plate.
If it is made of a rubber sheet, it can be easily locked and unlocked despite its simple structure.

The free piston 20 is pushed from its outer position to the lower position against the return spring 28 to perform pumping, whereby the air in the container is pressurized and accumulated.

In the structure of the embodiment, as can be seen from FIGS. 1 and 2, the nozzle mechanism 14 and the pump mechanism 16 are located in parallel instead of in series. Therefore, without being disturbed by the nozzle mechanism or the suction tube 17 extending from the nozzle mechanism,
The cylinder 20 can be set long and the stroke of the piston can be made large. Therefore, pressurization with a small number of pumping,
The pressure can be stored and the operability is improved.

Since the nozzle mechanism 14 and the pump mechanism 16 are located on the top of the container 12, there is no need to invert the container, which is unfamiliar to the consumer. Pressurization and accumulation of pressure by lifting and lowering the piston 20 on the container top familiar to the consumer. Can be done.

When the air in the container is sufficiently pressurized and accumulated, the vent bar 36 is pushed in as described above to remove the residual pressure in the cylinder. The piston 20 is then pushed against the return spring 28 and, while still pushed, pushes the locking means 36 inward under the bearing shaft 36a. Then, the lock claw at the bottom
36b is locked to the lower end of the cylinder through the hole 12a of the container, and the piston 20 is locked.

It goes without saying that if the push button 14a of the nozzle mechanism 14 is pushed in after the piston 20 is locked in its lower position (lower position), the outflow control valve is opened and the liquid in the container is outflowed. Nor.

As described above, the piston 20 has the return spring 28.
Despite being pressed upwards by the
Since it is locked at the lower position (which is also the outflow position) by the locking means 36, the liquid can flow out only by pushing the push button of the nozzle mechanism 14. That is, the liquid flows out without the complicated operation of pushing the push button while pushing the piston 20.

As can be seen from FIG. 3 (C), in the embodiment, a convex spherical surface is provided on the surface of the locking means 36 on the bearing shaft 36a, and a concave spherical surface is provided on the lower surface thereof. It is configured to be unlocked (unlocked) and to be locked when the concave spherical surface is pushed. In this way, the place where the locking means 36 is pushed for unlocking and locking is clearly distinguished.

Here, the piston 20 is generally pushed in by pressing the palm of the hand against the piston cap 20a and grasping the side surface of the piston cap with the open finger, so that the finger on the side surface touches the uneven spherical surface. ing. for that reason,
From the feel of the finger, for example, the position to be pushed at the time of locking can be easily recognized, and the locking can be performed with the piston cap 20a held.

When the locking means 36 is unlocked, the locking pin 36c at the upper end of the locking means 36 is locked in the locking hole 20a 'of the piston cap 20a so that the locking means is held in the unlocked position. It Therefore, the lock means 36 is maintained in its unlocked position, and the lock means does not hinder the lifting and lowering of the piston.

As shown in FIGS. 5 and 6, the concave portion in the radial direction is formed.
23 is formed on the upper surface of the piston cap 20a, and two holes are formed.
23a and 23b are provided side by side at the bottom of the recess (Fig. 5).
(See (A) and (C)). In the embodiment, the hole 23a has a rectangular shape and is located above the rectangular nozzle mechanism 14 fitted in the cylinder 18. That is, when the piston 20 is moved up and down, the nozzle mechanism 14 is inserted through the rectangular hole 23a and does not hinder the lift of the piston.

At the lock position (also at the outflow position and the lower position) of the piston 20 shown in FIGS. 1 and 4A, the nozzle mechanism is
Even if the 14 push buttons 14a pop out of the rectangular hole 23a, the push buttons are still stored in the recess 23. Since the push button 14a of the nozzle mechanism is stored in the recess 23 of the piston 20 in this way, the cap protecting the nozzle mechanism can be omitted, and it is not necessary to remove the cap, thus improving the operability. Of course, the cap is never lost.

Further, another hole 23b has a circular shape, the piston 20 is fitted in this circular hole, and the nozzle mechanism 14 and the pump mechanism 16 are arranged side by side in the recess 23 at the upper end of the piston.

As shown in FIG. 6A, it is preferable to provide an arrow indicating the liquid outflow direction on the upper surface of the push button 14a of the nozzle mechanism.

The above-mentioned embodiments are intended to explain the present invention, and are not intended to limit the present invention in any way, and all modifications and alterations made within the technical scope of the present invention are also included in the present invention. It goes without saying that it will be done.

[0057]

As described above, according to the present invention, the piston mechanism including the cylinder and the piston, and the nozzle mechanism are provided side by side at the top of the container, and the piston is operated at the top of the container. Therefore, the cylinder can be set longer without being obstructed by the nozzle mechanism and the suction tube, the stroke of the piston can be made large, and the operability is improved.

Further, it becomes unnecessary to invert the container, which is unfamiliar to the consumer, and it is possible to pressurize and store pressure by the normal lifting and lowering of the piston at the top of the container, which also improves the operability.

Furthermore, if a recess is provided on the top of the piston and the push button of the nozzle mechanism is stored in this recess, the cap of the nozzle mechanism is omitted and the operation of removing the cap is not necessary.

If the piston is locked by the locking means at the outflow position (downward position), the complicated operation of pushing the push button while pushing the piston against the return spring becomes unnecessary, and the push button of the nozzle mechanism is pushed. Just press to drain the liquid.

If the locking means has a swingable structure, locking and unlocking can be easily performed despite the simple structure.

If the locking means is configured to be held in the unlocked position, the locking means will not prevent the piston from moving up and down.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a pressure-accumulation pump dispenser according to an embodiment of the present invention in an outflow position (downward position).

FIG. 2 is a vertical cross-sectional view of a pressure-accumulation pump dispenser according to an embodiment of the present invention in a pressurizing position (upper position).

FIG. 3 is a plan view, a front view, a right side view, and a rear view of the lock means.

FIG. 4 is a partially cutaway front view of the accumulator pump dispenser when the piston is locked and unlocked.

[Fig. 5] Plan view, front view, and line (A) of the piston cap.
It is a longitudinal cross-sectional view along CC and a partial vertical cross-sectional view along line DD in (A).

FIG. 6 is a pressure accumulation type pump dispenser at an outflow position.
FIG. 5 is a plan view, a front view, a rear view, and a right side view of FIG.

[Explanation of symbols]

 10 Accumulator pump dispenser 12 Container 14 Nozzle mechanism 16 Pump mechanism 17 Suntion tube 18 Pump mechanism cylinder 20 Pump mechanism piston 20a Piston cap 20a 'Locking hole (locking recess) 21 Bearing part 21a Bearing hole 22 Chaplit 23 Piston cap recess 24 Pump mechanism primary valve 30 Pump mechanism secondary valve 33 Holding piece 34 Bent bar 36 Locking means (lock plate) 36a Bearing shaft 36b Locking claw 36c Locking pin (locking protrusion)

Claims (7)

[Claims] 1. A container is provided with a nozzle mechanism and a pump mechanism,
A pressure-accumulation pump dispenser in which air is sent into a container by a pump mechanism consisting of a cylinder and a piston to pressurize the air in the container, and the liquid in the container is discharged from the nozzle mechanism using the pressurized air as a pressurizing medium. Is fitted to the top of the container so that the piston can be pushed downward against the upward force of the return spring.The pump mechanism is installed on the top of the container and the nozzle mechanism is installed in parallel with the piston. An accumulator pump dispenser, which is attached to the upper end of the cylinder. 2. A nozzle mechanism having a push button on a container,
A pressure-accumulation pump in which a pump mechanism composed of a cylinder and a piston is provided, air is sent into the container by the pump mechanism to pressurize the air in the container, and the liquid in the container flows out from the nozzle mechanism using the pressurized air as a pressurizing medium. In the dispenser, a pump mechanism is installed at the top of the container and a nozzle mechanism is installed at the top of the cylinder so that air is pressurized by pushing the piston downward against the pushing force of the return spring upward. The piston has a recess on its upper surface, and a hole through which the nozzle mechanism can be inserted is formed at the bottom of the recess at a position offset from the piston body.When the piston is in the lower position, the push button of the nozzle mechanism is The accumulator pump dispenser, which is stored in the recess while protruding upward from the hole of the recess. 3. A nozzle mechanism having a push button on the container,
A pressure-accumulation pump in which a pump mechanism composed of a cylinder and a piston is provided, air is sent into the container by the pump mechanism to pressurize the air in the container, and the liquid in the container flows out from the nozzle mechanism using the pressurized air as a pressurizing medium. In the dispenser, a pump mechanism is provided at the top of the container and the nozzle mechanism is displaced from the piston so as to pressurize the piston downward to pressurize the air against the upward force of the return spring. The lock means is mounted on the upper end of the cylinder at a position and locks the piston at a lower position pushed against the pressing force of the return spring, and is provided between the piston and either the container or the cylinder. Accumulation type pump dispenser. 4. A nozzle mechanism having a push button on the container,
A pressure-accumulation pump in which a pump mechanism composed of a cylinder and a piston is provided, air is sent into the container by the pump mechanism to pressurize the air in the container, and the liquid in the container flows out from the nozzle mechanism using the pressurized air as a pressurizing medium. In the dispenser, a pump mechanism is provided at the top of the container and the nozzle mechanism is displaced from the piston so as to pressurize the piston downward to pressurize the air against the upward force of the return spring. Is mounted on the upper end of the cylinder at a position, and has a supporting shaft extending from both sides at the central part and a locking pawl provided at the lower end, and the swingable locking means has the supporting shaft in the corresponding supporting hole of the piston. It is supported and attached to the piston, and the lock claw is locked to either the container or the cylinder at the position below the piston to return the piston.
An accumulator pump dispenser, which is formed so as to be locked at a pushing position against the pushing force of a spring. 5. The push button of the nozzle mechanism, wherein the piston has a concave portion on its upper surface, a hole through which the nozzle mechanism can be inserted is formed at the bottom of the concave portion at a position displaced from the piston body, and when the piston is at the lower position thereof. 5. The pressure-accumulation pump dispenser according to claim 3, wherein the pump is stored in the recess while protruding from the hole of the recess of the piston. 6. A combination of locking recesses and locking projections capable of locking each other for holding the locking means in its unlocked position,
The pressure-accumulation pump dispenser according to claim 3 or 4, which is provided between the locking means and the piston. 7. A valve spring of a secondary valve provided at the lower end of the cylinder is made of plastic, and a holding piece is extended from the valve spring to the outside of the cylinder, and a suction tube extending from the nozzle mechanism is inserted and held. The pressure-accumulation pump dispenser according to any one of claims 1 to 6, wherein the holding hole is provided in the holding piece.