JP2857069B2 - Push type dispenser - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-type dispenser for sucking and pressurizing a liquid into a cylinder by a reciprocating motion of a piston interlocking with a depression of a nozzle head and flowing out the liquid.

[0002]

2. Description of the Related Art A push type dispenser which sucks a liquid by pushing a nozzle head and pressurizes the liquid to flow out from a nozzle is well known as a dispenser mounted on a container such as a shampoo or a rinse.

As shown in FIG. 8, a conventional push-type dispenser 210 is detachably attached to the mouth of a container 218 by a bottle cap 222, and a nozzle head 211 is provided.
When the piston 214 slides (reciprocates) in the cylinder 212 in conjunction with the pushing, the liquid is sucked up from the container 218, pressurized and discharged from the nozzle 211a. Here, a return spring 224 is built in the cylinder 212 to push up the nozzle head 211 to its initial position, and the nozzle head is pushed in against the biasing force of the return spring.

Here, a female threaded member called chaplit 226 is fixed to the upper end of the cylinder, the nozzle head 211 is pushed in, and the male screw 232 of the nozzle head is connected to the chaplit 226.
The dispenser 210 is transported and displayed while being screwed into the female screw 234. In this manner, if the nozzle head 211 is fixed at the pushing position, the pushing of the nozzle head and the outflow of the liquid resulting therefrom become impossible, and the unexpected outflow (liquid leakage) of the liquid at the time of conveyance and display is ensured. Can be blocked. Further, there is an advantage that the height of the dispenser 210 is reduced, and the space required for transportation and display is reduced.

[0005] When the screw between the nozzle head 211 and the chap 226 is released for use, the nozzle head 221 is pushed up from the pushed position with the piston 214 by the return spring 224 and returns to the initial position. When the nozzle head 211 at the initial position is pushed in and the piston 214 is reciprocated, the liquid is pressurized and flows out.

[0006]

When the liquid in the container is pressurized and flows out, the liquid level in the container lowers. If the outside air is not supplied, the pressure in the container is reduced to a negative pressure, and the liquid flows out thereafter. It will be difficult. Therefore, a ventilation (preventing negative pressure) mechanism is provided in the dispenser 210. The ventilation mechanism is usually configured by combining ventilation grooves, seal pieces, and ventilation holes (negative pressure prevention holes). Normally, the ventilation mechanism includes a skirt-shaped seal piece 226a slidable on the peripheral surface of the piston 214 at the lower end of the chap 226, an axial ventilation groove 228 on the peripheral surface of the piston shaft portion, and a ventilation hole 230 on the cylinder 21.
2 is formed on each of the side walls.

In this configuration, when the piston 214 is pushed together with the nozzle head 211 and the ventilation groove 228 on the peripheral surface of the shaft of the piston reaches the sealing piece 226a of the chap 226, the sliding contact is released and the ventilation groove and the sealing piece are released. There is a gap between them. Therefore, the inside of the container is communicated with the outside air through the gap and the ventilation hole 230, and the outside air flows into the container, thereby preventing negative pressure in the container.

By the way, female thread 234 of chap 226
A recess 226b is formed in the inner surface of the chaplit so as to allow the screw 232 of the nozzle head to be screwed into the nozzle head, and the bottom of the recess is closed with a seal piece 226a. The recess 226b is located below the upper surface of the chaplit, and water, dust, and the like easily accumulate in the recess 226b. In particular, a dispenser mounted on a container such as a shampoo or a rinse is used in a bathroom or a lavatory, so that water or hot water is easily applied to the dispenser, and the water or hot water flows into the recess and is stored. .

However, as described above, the nozzle head 211
Is pushed in, a gap for ventilation is formed in the skirt-shaped seal piece 22.
6a, which is generated between the ventilation grooves 228, the inside of the container is communicated with the outside air through the gap and the ventilation holes 230. That is, since a gap for ventilation is formed between the skirt-shaped seal piece 226a and the ventilation groove 228, the bottom of the concave portion 226b of the chaplit comes off, and the water and hot water in the concave portion 226b are removed from the ventilation groove 228 and the ventilation hole. It flows into the container 218 via the hole 230. And because the inflowing (mixed) water and hot water dilute the liquid in the container and reduce the effectiveness of the liquid,
Quality is not maintained, making it difficult to use up the liquid to completion.

Further, if the dust accumulated in the concave portion 226b enters the container, the liquid may be contaminated to deteriorate the quality, or the outflow of the liquid may be difficult by preventing the valve from sticking to the valve seat. .

The liquid flowing into the container from the recess 226b is water,
If a foreign liquid such as detergent flows into the container through the recess without being limited to hot water, a chemical change may occur and the quality of the liquid originally stored in the container may be significantly reduced, thereby impairing safety. There is even.

An object of the present invention is to provide a push-type dispenser for preventing entry of water or the like into a container.

[0013]

In order to achieve this object, the present invention focuses on the position of a concave portion of a chaplit where water or the like stays, and provides this concave portion at a high position to remove water or the like entering the concave portion. It is configured to discharge immediately without stagnation.

That is, according to one embodiment of the present invention, the upper half of the chaplit is made to protrude from the upper surface to form an internal thread of the chaplit in the upper half of the chaplit, and the slit in the axial direction is formed in the upper half of the chaplit. With
The upper half of the chaplit is elastically deformable in the radial direction.

Further, a cylindrical body which surrounds the upper half of the chaplit which is screwed with the male screw of the nozzle head and regulates the elastic deformation of the chaplit is formed in the nozzle head.

Further, the skirt-shaped seal piece of the nozzle head has a shape in which its tip is extended upward (upward) so as to be located above the lower end of the slit in the upper half of the chaplit at the initial position of the nozzle head. Shape).

[0017]

In this configuration, the slit functions as an outflow path for water, and water or the like cannot stay in the recess of the slit. In addition, since the upper end of the skirt-shaped seal piece is located above the lower end of the slit, and the seal piece itself extends upward, there is no space in which water or the like can stay above the seal piece. Therefore, even if the nozzle head pushes a ventilation gap between the skirt-shaped seal piece of the chaplit and the ventilation groove on the peripheral surface of the piston shaft located above the piston, there is room for water and the like to enter the container. There is no.

The skirt-shaped sealing piece of the nozzle head is molded upward without changing the position of the concave portion of the chaplet in which water or the like stays, and the tip of the skirt-shaped sealing piece is set in the initial position of the nozzle head. With a configuration in which the screw is located above the upper end of the opening of the screw, even if water or the like stays in the concave portion, it is possible to prevent water or the like from being mixed into the container.

[0019]

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

As shown in FIG. 1, a push type dispenser 10 according to the present invention includes a pushable nozzle head 11, a cylinder 12, and a piston 14 reciprocating in the cylinder in conjunction with the nozzle head. doing. The dispenser 10 is detachably mounted on the container 18 and sucks up liquid such as shampoo and rinse in the container to the cylinder 12 under reciprocating motion of the piston 14 interlocked with the depression of the nozzle head 11. It is configured to be pressurized and discharged.

The nozzle head 11 integrally includes a substantially horizontal nozzle (beak) 11a having a defined outflow path and a vertical stem 11b, and the liquid flows out from the end (outflow port) of the outflow path of the nozzle. . A piston 14 is attached to the nozzle head 11 so as to be interlocked therewith. In the embodiment, the piston 14 is attached to the nozzle head 11 via a connecting member (piston shaft) 20 fitted at the upper end to the stem 11b of the nozzle head.

The piston 14 is formed, for example, in a bottomed cylindrical shape having a lateral hole 14a. A skirt-shaped seal piece extending vertically and slidingly contacting the inner surface of the cylinder 12 at the upper and lower ends.
14b is mounted so as to be able to move up and down around the piston 14 so as to close the lateral hole 14a, and to open and close the lateral hole 14a by moving up and down relative to the piston to control the flow of liquid from the cylinder. (See FIG. 2). In other words, seal pieces
14b functions as a valve (secondary valve).

As shown in FIG.
Above 12a, a bottle cap 22 with a female thread is rotatably arranged, and a return spring 24 for biasing the piston 14 and the nozzle head 11 upward is built in the cylinder 14. A chaplit 26 is fitted to the upper end of the cylinder 12 to prevent the piston 14 and the bottle cap 22 from being detached from the cylinder, and the dispenser 10 is integrally incorporated. Then, connect the female screw 22a of the bottle cap to the external thread of the container
And the dispenser 10 is detachably mounted on the container 18.

As the return spring 24, for example,
A compression coil spring stretched between the lower end of the piston 14 and the lower part of the cylinder 12 is used.

Further, as will be described later, the chaplit 26 is formed integrally with a skirt-shaped seal piece 26a which is in sliding contact with the outer surface of the piston shaft 20.

In the dispenser 10 having such a configuration,
Due to the negative pressure of the cylinder 12 in the previous stroke, the liquid in the container 18 is previously sucked into the cylinder via a suction tube at the lower end of the cylinder and a primary valve (neither is shown).

When the nozzle head 11 is pushed again against the biasing force of the return spring (compression coil spring) 24,
The piston 14 is pushed in (slids down) while sliding on the cylinder 12, the liquid in the cylinder is pressurized, and the pressurized liquid is
The nozzle (secondary valve) 14b is pushed up (see FIG. 2), the lateral hole 14a is opened, the piston rises in the piston shaft, and flows out from the tip (outlet) of the nozzle 11a of the nozzle head.

When the pressing force on the nozzle head 11 is removed, the nozzle head is pushed up together with the piston 14 by the return spring 24 and returned to the initial position shown in FIG. When the nozzle head 11, that is, the piston 14 is pushed up, the cylinder 12 is depressurized and the liquid is
From the cylinder 12.

As shown in FIG. 1, in such a dispenser 10, for example, a ventilation groove 28 is provided extending in the axial direction on the peripheral surface of the piston shaft 20, and a ventilation hole communicating with the inside of the container 18. 30 is drilled in the side wall of the cylinder 12. In this configuration, when the piston 14 is pushed together with the nozzle head 11 and the seal piece 26a is positioned above the ventilation groove 28, the seal piece,
A gap for ventilation is generated between the ventilation grooves, and the inside of the container is communicated with the outside air through the gap and the ventilation hole 30.

Therefore, outside air flows into the container 18 through the seal piece 26a, the gap between the ventilation grooves 28, and the ventilation holes 30,
A negative pressure in the container is prevented, thereby ensuring a smooth outflow of the liquid.

In the dispenser 10, a male screw 32 and a female screw 34 are provided on the nozzle head 11 and the chap 26, respectively, and the nozzle head is pushed in under the screwing of the male screw and the female screw. The dispenser 10 is transported and displayed in a fixed position (see FIG. 2). For this reason, it is impossible to push the nozzle head 11 and the piston 14 and the outflow of the liquid caused by the depression, and unexpected outflow (liquid leakage) of the liquid during transportation and display is prevented. In addition, the height of the dispenser 10 becomes shorter, and the space required for transport and display is reduced.

Here, as shown in FIG. 1, in the present invention, the upper half 38 is projected from the upper surface 26b of the chap 26 so that the concave portion of the chap is provided at a high position, and the female screw 34 is connected to the upper half. (The corresponding male screw 32 is formed on the stem 11b of the nozzle head). As shown in FIG. 3 in addition to FIG. 1, an axial slit 34 is formed in the upper half part 38 of the chaplit.
Is provided so that the upper half of the chaplit can be elastically deformed in the radial direction.

In this configuration, water and hot water are supplied to the dispenser 10.
, The slit 38a functions as an outflow path even if the water enters the concave portion of the chaplit, that is, the upper portion 38 of the chaplit.
38) Do not stay. Garbage is also in the upper half of the chap.
Even if it enters, it flows out with water and hot water and does not stay.

If the skirt-like seal piece 26a of the chaplit is located below the concave portion of the chaplit 26,
Usually, a space in which water, hot water, and dust can stay is defined above the seal piece. Therefore, in the present invention, the skirt-shaped seal pieces 26a are not allowed to allow such a space.
Is extended upward, and its upper end is located above the lower end of the slit. In the embodiment, as shown in FIG.
The upper end of a is located L1 above the slit lower end.

As described above, according to the present invention, the concave portion of the chaplit 26 which is inevitably formed due to the screwing of the male screw 32 and the female screw 34 is provided at a high position, and the outflow path (slit 38
a) is formed so that even if water, hot water, and dust enter the concave portion, they are allowed to flow out and do not allow stagnation. Further, a space capable of retaining water or the like does not exist above the skirt-shaped seal piece 26a of the chaplit.

Therefore, even if water or hot water is applied to the dispenser 10, or dust is falling, the water, hot water or dust will not flow into the container. Therefore, the liquid in the container 18, such as a shampoo or a rinse, is not diluted with the inflow of water or hot water, and the efficiency of the liquid does not decrease. Needless to say, the inflow of a liquid accompanying a chemical change such as a detergent is also prevented, and a chemical change that impairs safety is prevented beforehand. Further, the contamination of the liquid by dust and the adhesion of dust to the opening and closing of the valve do not occur.

Further, when the piston 14 is lowered by pushing the nozzle head 11, the upward seal piece 26a
Water droplets, dust and the like adhering to the peripheral surface of the piston shaft 20 are peeled off and removed along the slope of the seal piece. That is,
Intrusion of water or the like adhering to the piston shaft 20 into the container is prevented, and from this point too, entry of water or the like into the container is prevented.

By the way, the upper half of the chaplit with female thread 34
38 is provided with a slit 34 in the axial direction so that the upper half of the chaplit can be elastically deformed in the radial direction, so that when an external force acting on the dispenser 10 causes the nozzle head 11 with a male thread and the chaplit 26 with a female thread to separate from each other. However, there is a possibility that the upper half portion 38 of the chaplit is elastically deformed (runs away) in the expanding direction (outward in the radial direction) to release the screw engagement. When the screwing is released, liquid leakage occurs during transportation and display.

Therefore, as shown in FIG. 1, in the present invention, the nozzle head 11 is formed to have a large-diameter cylinder 36 around the stem 11b. It is configured so as to restrict the elastic deformation of the chaprit by surrounding it.

As shown in FIG. 2, when the nozzle head 11 is pushed in and fixed at the pushing position, the upper half of the chaplit 38
Is inserted between the stem 11b and the cylinder 36 and screwed together, leaving only a small gap between the upper half of the chaplit and the cylinder. Therefore, the elastic deformation of the upper chaplet portion 38 in the radially outward direction is prevented by the cylindrical body 36, and
The disengagement of the screw due to the elastic deformation of the nozzle head 11 is prevented, and the nozzle head 11 is securely fixed during conveyance and display, thereby preventing liquid leakage during conveyance and display.

In the embodiment, three strip-shaped slits 38a are formed at equal angles apart from each other, but it is sufficient if the upper half portion 38 with the female thread is elastically deformed in the radial direction. The arrangement is not limited.

Also, as shown in FIG. 1, the lower end of the slit 38a is located at the same height as the upper surface 26b of the chap 26, but at the position where the liquid in the upper chap 38 can flow out, that is, It suffices if it is above the lower end of the screw 34, and it is not limited to this. For example, by reducing the length of the slit 38a, the lower end of the slit 38a is
b even if it is positioned above
Since the configuration in which the upper end of a is located above the lower end of the slit 38a remains unchanged, entry of water or the like into the container is prevented.

In this embodiment, three slits 38a are provided in a conformal manner. However, if the number of slits is reduced or the width of the slits is reduced, the elasticity of the upper half portion 38 of the chaplit is reduced. The cylinder 36 of the nozzle head can be omitted.

However, if the slit 38a is provided so that the upper half portion 38 of the chaplit is sufficiently elastically deformed, the shaping core can be pulled out without rotating the shaping core, and the chaplit 26 can be formed. become. Further, the mold of the chaplit 26 is structurally simplified.

Further, in the embodiment, the male screw 32 is provided on the nozzle head 11 and the female screw 34 is provided on the chaplit 11, but conversely, the male screw may be provided on the chaplit and the female screw may be provided on the nozzle head.

In this case, as shown in FIG. 4, the male screw 32 is provided on the upper half portion 38 of the chap and the female screw 34 is provided on the cylinder 36, respectively. In this case as well, the slit 38a is formed in the upper half portion 38 of the chaplit, and the seal of the chaplit is formed.
Since the upper end of the screw piece 26a is located above the lower end of the slit, the same effect as described above can be obtained.

In this embodiment, there is a possibility that the upper half part 38 of the chaplit is elastically deformed inward in the radial direction and the screw engagement is released. However, since the stem 11b of the nozzle head surrounds the upper half portion of the chaplit and regulates the deformation of the upper half portion of the chaplit, the disengagement of the screw is prevented.

It is sufficient if water or the like is allowed to flow out to prevent accumulation of water or the like in the upper half part 38 of the chaplit.
However, as shown in FIGS. 5 and 6, for example, a drain hole 40 may be provided in the upper half portion 38 of the chaplit as an outflow path. The drain hole 40 may be formed to extend in the circumferential direction. As can be clearly understood from FIG. 5, in this configuration, the upper skirt-shaped seal piece 26a of the chaplit is formed with its upper end protruding from the lower edge of the drain hole 40.

As described above, even in the configuration in which the drainage hole 40 is used as the outflow path instead of the slit 38a, the accumulation of water, hot water, and dust in the upper half portion 38 of the chaplit can be prevented, and the seal can be prevented. The entry of water or the like from the upper end of the piece 26a is prevented.

In FIG. 5, a screw is attached to the nozzle head 11.
32 illustrates a configuration in which the internal thread 34 is provided on the chap 26, however, the configuration is not limited thereto.
Similarly, a female screw may be provided on the nozzle head, and a screw may be provided on the chaplit.

As shown in FIG. 6, four drain holes 40 in the upper half portion 38 of the chaplit are provided at equal angles apart from each other. The number, shape, and arrangement are not limited to the illustrated configuration.

By devising a skirt-like seal piece of the chaplit without providing the upper half of the chaplit,
Water, hot water and dust can be prevented from entering. For example, in a push-type dispenser 110 shown in FIG. 7, a female thread 134 is formed in a chap 126 to define a concave portion 42, and a screw 132 is provided in a stem 111b of a nozzle head 111, as in the prior art.

However, as can be clearly understood from a comparison with FIG. 8 showing a conventional configuration, this dispenser 110 has a skirt-like seal piece of a chaplet as in the above embodiment.
126a is directed upward, and the tip of the seal piece extends above the upper end opening of the female thread 134 of the chaplit, that is, the upper end opening of the concave portion 42.

In this embodiment, the concave portion 42 of the chaplit exists at the same position as the conventional one, and the storage of water, hot water and dust in the concave portion itself is inevitable. However, since the upper end of the upwardly facing seal piece 126a of the chaplit is located above the opening end of the recess 42, even if there is a gap for ventilation between the ventilation groove 28 of the piston shaft and the seal piece. In addition, it is possible to prevent water or the like in the concave portion from being mixed into the container through the gap.

When the male thread 132 and the female thread 134 are screwed together, the seal piece 126a of the chaplit is
Is stored in a space 44 formed in the stem 111b.

The embodiments described above are for explaining the present invention, and do not limit the present invention in any way.
It goes without saying that all modifications and alterations within the technical scope of the present invention are included in the present invention.

[0057]

As described above, according to the push-type dispenser of the present invention, the concave portion of the chaplit which is inevitably generated due to the screwing of the male screw and the female screw is provided at a high position, and the outflow path ( (Slits, drain holes) are formed so that even if water or the like enters the concave portion, it immediately flows out and does not allow stagnation. Further, the skirt-shaped seal piece of the chaprit is provided upward, so that there is no space itself capable of retaining water or the like above the seal piece. It is located above the lower end.

Therefore, even if a ventilation gap is formed between the seal piece of the chaplit and the ventilation groove of the piston, water does not flow into the container. Needless to say, mixing of a liquid accompanied by a chemical change such as a detergent is also prevented. In addition, the contamination of the liquid by the incorporation of dust and the attachment of dust do not prevent the opening and closing of the valve.

The water and the like adhering to the peripheral surface of the piston shaft are peeled and eliminated by the upwardly facing skirt-shaped seal piece, and from this point, the entry of the water and the like into the container is also prevented.

If the upper half portion of the chaplit is formed to be elastically deformable by providing an axial slit as an outflow path, the chaplit can be formed by pulling out the forming screw core, and the chaplit can be easily formed. In addition, the mold for chaplitting molding is structurally simplified.

Further, the upper half of the chaplit with the outflow passage is not provided, and the upper seal piece is positioned above the upper end opening of the threaded portion of the chaplit side while leaving the recess as in the prior art. By doing so, even if water or the like stays in the recess, the water or the like in the recess does not enter the container.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a push type dispenser according to an embodiment of the present invention at an initial position.

FIG. 2 is a dispenser at a pressing position of a nozzle head.
FIG.

FIG. 3 is a perspective view of a chaplit.

FIG. 4 is a schematic longitudinal sectional view of a partially cutaway push type dispenser according to another embodiment of the present invention.

FIG. 5 is a schematic longitudinal sectional view of a partially broken push type dispenser according to a modification of the present invention.

FIG. 6 is a perspective view of a chaplit according to a modification of the present invention.

FIG. 7 is a schematic longitudinal sectional view of a push-type dispenser according to another embodiment of the present invention, partially broken away.

FIG. 8 is a schematic longitudinal sectional view of a conventional push type dispenser in an initial position.

[Explanation of symbols]

 10, 110 Push type dispenser 11, 111 Nozzle head 11b, 111b Nozzle head stem 12 Cylinder 14 Piston 14b Seal piece 18 Container 20 Piston shaft 26, 126 Chaprit 26a, 126a Chaplit seal piece 28 Piston ventilation Groove 30 Ventilation hole of cylinder 32, 132 Male thread 34, 134 Female thread 36 Nozzle head cylinder 38 Upper half of chaplit 38a Slit (outflow path) 40 Drainage hole (outflow path) 42 Recess of chaplit

Claims (6)

(57) [Claims] 1. A reciprocating motion of a piston by pushing a nozzle head against a return spring allows a liquid to be sucked and pressurized into a cylinder and to flow out from an outlet of the nozzle head. In a push-type dispenser in which an external thread of the nozzle head is screwed and the nozzle head is fixed at the pushed position, an upper half portion is projected from the upper surface of the chaplit, and a female screw of the chaplit is formed in the upper half portion of the chaplit. At the same time, an axial slit is provided in the upper half of the chaplit so that the upper half of the chaplit can be elastically deformed in the radial direction, and the nozzle head is arranged around the stem on which the male screw is formed.
A cylindrical body surrounding the upper half of the chaplit screwed to the external thread of the stem to regulate the elastic deformation of the upper half of the chaplit. An upward skirt-shaped seal piece slidingly in contact with the peripheral surface of the piston shaft is provided on the chaplit with its upper end positioned above the lower end of the slit in the upper half of the chaplit at the initial position of the nozzle head, A ventilation groove is formed on the peripheral surface of the piston shaft, and when the piston at the lower part of the piston shaft is pushed in from the initial position together with the nozzle head, a gap for ventilation is created between the skirt-shaped sealing piece of the chaplit and the ventilation groove of the piston shaft. A push type dispenser characterized in that: 2. A reciprocating motion of a piston by pushing a nozzle head against a return spring allows liquid to be sucked up and pressurized into a cylinder and to flow out from an outlet of the nozzle head. The male screw of the nozzle head is screwed in and the nozzle head is fixed at the pushed position, the ventilation groove is formed on the peripheral surface of the piston shaft above the piston, and the skirt-shaped seal piece sliding on the peripheral surface of the piston shaft is formed on the chaplit, respectively. In a push-type dispenser that is formed and a ventilation gap is created between the ventilation groove of the piston shaft and the skirt-shaped seal piece by pushing the nozzle head, the upper half of the chaplit is projected from the upper surface of the chaplit, and the internal thread of the chaplit is inserted into the chaplit. Formed in the upper half and the axis in the upper half of the chaplit The upper half of the chaplit can be elastically deformed in the radial direction by providing a slit in the direction of the center. The body is formed into a nozzle head, and the skirt-shaped sealing piece of the chaplit has an upward shape with its tip extended upward, and the tip is located above the lower end of the slit in the upper half of the chaplit in the initial position of the nozzle head. Push type dispenser characterized by doing. 3. A reciprocating motion of a piston by pushing a nozzle head against a return spring allows liquid to be sucked and pressurized into a cylinder and to flow out from an outlet of the nozzle head. The corresponding screw of the head is screwed and the nozzle head is fixed at its pushed position, the ventilation groove is on the peripheral surface of the piston shaft at the top of the piston, the skirt-shaped seal piece sliding on the peripheral surface of this piston shaft is on the chaplit, In a push-type dispenser that is formed and a ventilation gap is created between the ventilation groove of the piston and the skirt-shaped seal piece by pushing the nozzle head, the chap screw is a male screw, and the chap screw protrudes from the upper surface of the chap Form a screw in the half and the upper half of the chaplit An axial slit is provided to make the upper half of the chaplit elastically deformable in the radial direction, and when the male screw of the chaplit and the female screw of the nozzle head are screwed together, the upper half of the chaplit is elastically deformed inward in the radial direction. The nozzle head is shaped so that it can be regulated, and the skirt-shaped seal piece of the chaplit has an upward shape with its tip extended upward, and the tip is located above the slit lower end of the upper half of the chaplit at the initial position of the nozzle head. Push type dispenser characterized by doing. 4. A reciprocating motion of the piston by pushing the nozzle head against the return spring allows the liquid to be sucked up into the cylinder and pressurized to flow out from the outlet of the nozzle head. The male screw of the nozzle head is screwed in and the nozzle head is fixed at the pushed position, and a ventilation groove is formed on the peripheral surface of the piston shaft above the piston, and a skirt-shaped seal piece that slides on the peripheral surface of the piston shaft is formed on the chaplit. And the ventilation groove of the piston by pushing the nozzle head,
In a push-type dispenser in which a ventilation gap is formed between skirt-shaped seal pieces, an upper half of the chaplit is projected from the upper surface to form a female screw of the chaplit in the upper half of the chaplit, and water is applied to the upper half of the chaplit. A drain hole is provided, and the skirt-shaped seal piece of the chaplit has an upward shape with its tip extended upward, and the tip is located above the lower end of the drain hole in the upper half of the chaplit at the initial position of the nozzle head. A push type dispenser characterized in that: 5. A reciprocating motion of a piston caused by pushing of a nozzle head against a return spring allows a liquid to be sucked and pressurized into a cylinder and to flow out from an outlet of the nozzle head. The corresponding screws of the head are screwed together and the nozzle head is fixed in its pushed-in position, the ventilation groove is on the piston shaft peripheral surface at the top of the piston, and the skirt-shaped seal piece sliding on the piston shaft peripheral surface is on the chaplit, respectively. In a push-type dispenser that is formed and a ventilation gap is formed between the ventilation groove of the piston and the skirt-shaped seal piece by pushing the nozzle head, the chaplit screw is a male screw, and the upper half of the chaplit projected from the upper surface of the chaplit. Screw on the upper part of the chap A drain hole is provided, and the skirt-shaped seal piece of the chaplit has an upward shape with its tip extended upward, and the tip is located above the lower end of the drain hole in the upper half of the chaplit at the initial position of the nozzle head. A push type dispenser characterized in that: 6. A reciprocating motion of the piston caused by pushing of the nozzle head against the return spring sucks and pressurizes the liquid into the cylinder and flows out from the outlet of the nozzle head. When the male screw of the nozzle head is screwed in and the nozzle head is fixed at the pushed position, and when the nozzle head is not fixed, a concave portion is defined below the upper surface of the chaplit by the female screw, and the ventilation groove is formed on the peripheral surface of the piston shaft above the piston. Then, a skirt-shaped seal piece that is in sliding contact with the peripheral surface of the piston shaft is formed in the chaplit, and a ventilation gap is created between the ventilation groove of the piston and the skirt-shaped seal piece by pushing the nozzle head. The seal piece has an upward shape with its tip extending upward, and its tip is A push-type dispenser located above the upper end opening of the concave portion of the chaplet at the initial position of the spill head.