JP3151742B2 - Spray container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a finishing agent for clothing,
The present invention relates to a spray container for ejecting a liquid material such as an adhesive for clothing.

[0002]

2. Description of the Related Art Conventionally, as accumulator type spray containers, Japanese Utility Model Publication No. 55-23648, Japanese Utility Model Publication No. 57-20288, Japanese Utility Model Application
-26853 and Japanese Utility Model Laid-Open No. 4-37554.

[0003] In this conventional spray container, the accumulated pressure of a plunger pump caused by the turning operation of a trigger is used.
When the liquid material in the cylinder reaches a predetermined hydraulic pressure, due to the pressure difference due to the difference in cross-sectional area between the small-diameter cylinder and the large-diameter cylinder,
The plunger moves relative to the large-diameter cylinder to open the blockage of the nozzle portion by the plunger, so that the liquid can be ejected uniformly at a high pressure. Thus, according to the prior art spray container, the liquid material is not ejected in a state where the liquid pressure in the cylinder is low, and the liquid material is not ejected in the form of a mist at the time of low pressure in the early stage to late stage of ejection. The liquid material can be jetted uniformly at a high pressure without causing uneven jetting such as dripping.

[0004]

However, the prior art has the following problems. The outside air seal portion provided on the plunger is disposed on the outer side (external space side) of the small diameter cylinder, and the residual pressure seal portion is disposed on the inner side (cylinder internal space side) of the small diameter cylinder. When the residual pressure seal portion opens the residual pressure introduction path by pulling the trigger, the residual liquid in the small diameter cylinder is discharged from the residual pressure introduction path together with the residual pressure toward the gas-liquid introduction hole on the inner surface of the small diameter cylinder.

[0005] The residual liquid discharged together with the residual pressure in the small-diameter cylinder is guided around the gas-liquid introduction hole in the inner surface of the cylinder to a portion of the plunger sandwiched between the outside air seal portion and the residual pressure seal portion. Although a part of the remaining liquid is introduced from the gas-liquid introduction hole to the container body via the gas-liquid introduction path, the remaining liquid may leak into the external space beyond the outside air seal portion. .

SUMMARY OF THE INVENTION It is an object of the present invention to prevent a liquid material discharged from a small-diameter cylinder together with a residual pressure from leaking into an external space when a trigger is pulled in a pressure-accumulation type spray container.

[0007]

According to the first aspect of the present invention, a trigger sprayer is mounted on an opening of a container body for filling a liquid material, and the trigger sprayer is connected to a horizontal conduit communicating with each other. A sprayer main body provided with a plumber pump in the horizontal conduit, a trigger rotatably mounted on the sprayer main body, and an intake mounted on the vertical conduit. And a tube attached to the intake, wherein the plunger pump is provided in the sprayer body.
A small-diameter cylinder fixed in the horizontal pipe
The small-diameter plate is guided in a reciprocating motion by the layer body.
It is disposed via a plunger in front of the cylinder and
By turning the trigger, the liquid material
A large-diameter cylinder that reciprocates in the ejection direction; and a nozzle portion for ejecting a liquid material in front of the large- diameter cylinder.
And reciprocally slidable in the large-diameter cylinder, and a spring
The tip of the plunger is brought into contact with the nozzle by the urging force of
So as to block the liquid flow through the nozzle
Arranged, the sprayer body and the intake
When the trigger is pulled, the large-diameter cylinder
Opened by the plunger moving together
Gas that guides the residual pressure in the small-diameter cylinder into the container body.
In the spray container having a liquid introduction path , the small-diameter cylinder is provided with a gas-liquid introduction hole for guiding outside air and the residual pressure in the small-diameter cylinder to the gas-liquid introduction path, and the plunger is provided on the inner surface of the small-diameter cylinder. An outside air seal portion that slides and opens and closes an outside air introduction path connected to the gas-liquid introduction hole,
A residual pressure seal portion that slides on the inner surface of the small-diameter cylinder and opens and closes a residual pressure introduction path connected to the gas-liquid introduction hole is provided, and a plurality of external air seal portions that form a plurality of stages in the axial direction of the plunger are provided. It is made to become.

According to a second aspect of the present invention, in the first aspect of the present invention, the plurality of outside air seal portions are located on the outer side of the small-diameter cylinder; The outer air seal portion is formed in an expanded skirt shape toward the inner side of the small-diameter cylinder and slidably contacts the inner surface of the small-diameter cylinder. The seal portion is formed in a skirt shape expanding toward the outer side of the small-diameter cylinder so as to be in sliding contact with the inner surface of the small-diameter cylinder.

According to a third aspect of the present invention, in the second aspect of the present invention, the outer outside air seal portion has an expansion angle of 6 to 12 degrees and a sliding contact length with the inner surface of the small diameter cylinder. To
0.1 to 1.0 mm, and the inside and outside air seal part
10 to 16 degrees, the sliding length with the inner surface of the small diameter cylinder is 0.1 to
1.0 mm.

According to the first aspect of the present invention, the following operations are provided. When the trigger is pulled, it is discharged together with the residual pressure in the small-diameter cylinder, and the residual liquid sandwiched between the outside air seal part and the residual pressure seal part of the plunger around the gas-liquid introduction hole on the cylinder inner surface is multiplexed into multiple stages. The plurality of outside air seal portions are securely sealed by the arranged outside air seal portions, and the liquid does not leak to the external space beyond the outside air seal portions. Therefore, all of the remaining liquid can be guided from the gas-liquid introduction hole to the container body via the gas-liquid introduction path.

According to the second aspect of the present invention, the following operations are provided. The outside air seal part forms an expanding skirt toward the inner side of the small-diameter cylinder and slides on the inner surface of the small-diameter cylinder, and the inner air-sealing part forms an expanding skirt toward the outer side of the small-diameter cylinder. To slide on the inner surface of the small-diameter cylinder. Therefore,
The above-described liquid leakage prevention performance by the two outside air seal portions can be improved.

According to the third aspect of the present invention, the following operations are provided. The outside air seal has an expansion angle of 6 to 12 degrees and the sliding contact length with the inner surface of the small-diameter cylinder is 0.1 to 1.0 mm.The inner air seal has an expansion angle of 10 to 16 degrees and the inner surface of the small-diameter cylinder. Is set to 0.1 to 1.0 mm, it is possible to further improve the above-described liquid leakage prevention performance of both outside air seal portions.

[0013]

FIG. 1 is a sectional view showing a spray container, FIG. 2 is a sectional view showing a liquid suction process of a trigger sprayer, FIG. 3 is a sectional view showing a liquid spraying process of a trigger sprayer, and FIG. FIG. 5 is a cross-sectional view showing a process of stopping the ejection of the liquid by the trigger sprayer, FIG. 5 is a schematic view showing an outside air seal portion of a plunger, FIG. 6 is a schematic view showing an outside air introduction rib and a residual pressure introduction rib of a small diameter cylinder, and FIG. FIG. 8 is a schematic view showing an intake, FIG. 8 is a schematic view showing a trigger and a trigger mounting member,
FIG. 9 is a side view showing a pre-assembled state of the trigger, and FIG. 10 is a plan view showing a pre-assembled state of the trigger.

As shown in FIG. 1, a spray container 1 has a trigger sprayer (hereinafter simply referred to as a "sprayer") which jets the liquid material into an opening of a bottomed container body 2 filled with the liquid material. 3 is mounted.

The sprayer 3 is provided with a horizontal pipe 4 and a vertical pipe 5 communicating with each other.
Sprayer body 7 with plunger pump 6
A trigger 8 rotatably mounted on the sprayer body 7, an intake 9 mounted on the vertical conduit 5, and a tube 10 mounted on the intake 9.

The plunger pump 6 is provided with a small-diameter cylinder 11 disposed in the horizontal pipe 4 and a plunger 12 in front of the small-diameter cylinder 11 via a plunger 12. And a large-diameter cylinder 13 that reciprocates in the jetting direction.

The small-diameter cylinder 11, the sprayer main body 7, and the intake 9 are provided with a gas-liquid introduction passage 14 for guiding the liquid material and the outside air in the small-diameter cylinder 11 into the container main body 2.
Is provided.

The spray container 1 will be described in more detail. The small-diameter cylinder 11 is fitted and fixed in the horizontal conduit 4 with the opening 11a facing forward, and a flange 11b is formed at the opening edge. Is provided. A gas-liquid introduction hole 11c for guiding the outside air and the residual pressure in the small-diameter cylinder 11 to the gas-liquid introduction passage 14 is formed in the upper surface and the lower surface of the small-diameter cylinder 11, and the back surface 11
In f, a communication hole 11g for communicating the inside of the small-diameter cylinder 11 with the vertical conduit 5 is formed. Further, in the small-diameter cylinder 11, a rib 11d for introducing outside air is formed on an inner surface of a portion located in front of the gas-liquid introduction hole 11c formed in the lower surface, and an inner surface of a portion located behind the gas-liquid introduction hole 11c. Is formed with a residual pressure introducing rib 11e (FIG. 6). Then, by the turning operation of the trigger 8,
An outside air seal portion 121d of the plunger 12 described later,
The inside / outside air seal portion 120d is connected to the outside air introduction rib 11d.
, The outside air can flow into the gas-liquid introduction hole 11c through the outside air introduction path formed by the gap between the inner surface of the small-diameter cylinder 11 and the seal portion 120d of the main plunger 120 and the seal portion 121d of the sub-plunger 121. It has become. Further, the residual pressure sealing portion 120 of the plunger 12
When e reaches the residual pressure introduction rib 11e, the external air introduction path is closed by the inner and outer air seal portions 120d and 121d, and the residual pressure and residual liquid in the small-diameter cylinder 11 are sealed by the residual pressure seal of the sub-plunger 121. Part 120e and seal part 1
The gas is introduced into the container body 2 from the gas-liquid introduction hole 11c through the gas-liquid introduction hole 11c through the gap formed between the holes 20d. At this time,
The liquid is supplied to the inner surface of the small-diameter cylinder 11 and the sealing portion 120 d of the main plunger 120 and the sealing portion 12 of the sub-plunger 121.
Since the sealing is performed by 1d, the residual liquid remaining pressure can be removed smoothly, and at the same time, the liquid can be prevented from leaking even when the container is used in an inclined state.

The large-diameter cylinder 13 is provided with a large-diameter cylinder portion 13b at a rear portion and a nozzle portion 13c at a front portion with a shoulder portion 13a provided at a middle portion in the horizontal direction as a boundary. A locking flange 13d is provided at the outer edge of the opening of the cylinder portion 13b. A spin element portion 13e is provided inside the nozzle portion 13c, and a contact portion 13f with which a distal end portion of a plunger 12, which will be described later, contacts is provided behind the spin element portion 13e. A nozzle tip 13g having a nozzle hole is fitted to the tip of the spin element portion 13e. Further, the shoulder portion 1 is provided outside the nozzle portion 13c.
A protrusion 13h is provided extending from 3a, and the large-diameter cylinder 13 can be moved rearward by pressing the protrusion 13h with a pressing portion 8b provided on the back surface of the trigger 8 described later. It has become.

The plunger 12 comprises a main plunger 120 having a solid front portion and a hollow rear portion, and a cylindrical sub-plunger 121 fitted and fixed to the outside of the main plunger 120. ing.

The main plunger 120 has a shape in which the front portion is reduced in diameter and the rear portion is increased in diameter, and a liquid material is passed from the small-diameter cylinder 11 to the large-diameter cylinder 13 at the front end thereof. A liquid passage hole 120a is formed.

The sub-plunger 121 is fitted and fixed to the outside of the main plunger 120, and a portion of the middle portion in the longitudinal direction, which is opposed to the front end of the main plunger 120, has a large size through a liquid passage hole 120 a of the main plunger 120. Diameter cylinder 1
A liquid passage hole 121a is formed to allow a liquid material to flow into the third side. A large-diameter seal portion 121b is provided on the outer peripheral surface of the intermediate portion in the longitudinal direction of the sub-plunger 121 in liquid-tight sliding contact with the inner peripheral surface of the large-diameter cylinder 13, and the main plunger is provided on the rear inner peripheral surface. A fitting portion 121c that is forcibly fitted to the outer periphery of the connector 120 is provided. At the rear of the main plunger 120, there is provided the aforementioned residual pressure seal portion 120e that slides along the inner peripheral surface of the small diameter cylinder 11. In addition, in the rear part of the sub-plunger 121,
The above-described outer air seal portion 121d that slides along the inner peripheral surface of the small-diameter cylinder 11 is provided.
In the middle part of the above, the above-mentioned inside / outside air seal portion 120d which slides along the inner peripheral surface of the small diameter cylinder 11 is provided, and when the main plunger 120 and the sub plunger 121 are slightly moved when the trigger 8 is pulled, The outside air introduction ribs 11d of the small-diameter cylinder 11 are connected to the outside air sealing portions 120d, 1d.
21d is pushed open from the inner surface of the small-diameter cylinder 11 to open an outside air introduction path along the inner surface of the small-diameter cylinder 11, and outside air flows from the outside air introduction path through the gas-liquid introduction hole 11c and the gas-liquid introduction path 14. Therefore, even if the trigger 8 is repeatedly operated at a narrow angle, the inside of the container body 2 does not need to be in a negative pressure state.

At the tip of the horizontal conduit 4 in the sprayer body 7, a fitting wall 7a is provided so as to surround the horizontal conduit 4. A tubular cover 16 that guides the reciprocating movement of the large-diameter cylinder 13 and tightly fits the small-diameter cylinder 11 to the sprayer body 7 is fitted and fixed to the tip of the fitting wall 7a. .
A vertical gas-liquid introduction hole 7b is formed below a rear portion of the fitting wall portion 7a, and the outside air and the small-diameter cylinder 1 are formed.
The residual pressure and residual liquid in the container 1 can flow into the container body 2 through the gas-liquid introduction hole 7b.

Also, at the inner end of the main plunger 120,
A spring 15 is provided, and by the urging force of the spring 15, the distal end portion 121e of the sub-plunger 121 comes into contact with the contact portion 13f of the nozzle portion 13c of the large-diameter cylinder 13, and the spin element in front of the contact portion 13f. The passage of the liquid material to the portion 13e is shut off.

A trigger mounting member 80 is fitted above the distal end of the sprayer main body 7, and the trigger 8 is rotatably fitted to a side surface of the trigger mounting member 80. An insertion hole 8a in the front-rear direction is formed in the middle part of the trigger 8 in the vertical direction, and the nozzle portion 13c of the large-diameter cylinder 13 faces the front through the insertion hole 8a. The trigger 8 is provided with a pressing portion 8b having a form corresponding to the projecting portion 13h of the large-diameter cylinder 13. By rotating the trigger 8, the pressing portion 8b is moved to the projecting portion 13h. , So that the large-diameter cylinder 13 can move horizontally.

On the other hand, a double insertion wall 7 surrounding the lower end of the vertical pipe 5 is provided below the sprayer body 7.
c and 7d are provided, and the vertical conduit 5 and the insertion wall portion 7 are provided.
The intake 9 is fitted to c and 7d. The upper end of the tube 10 is fitted and fixed to the intake 9.

The intake 9 has a fitting portion 9 fitted on the insertion wall portion 7d above the board portion 9a.
b, and a pipe portion 9c fitted to the vertical conduit 5 and the insertion wall portion 7c, and when the sprayer main body 7 is attached to the mouth of the container main body 2 below. There is provided a fitting portion 9d which fits tightly into the mouth portion via a packing, and a tube portion 9e which communicates with the tube portion 9c and into which the upper end of the tube 10 is fitted.

Above the inside of the pipe 9c, the pipe 9
ball valve check valve 1 for preventing backflow of a liquid material in c.
7 is provided in a state supported by the valve seat 9f. Also, a rib is provided at the upper end of the pipe 9c to control the rise of the check valve 17.

In the top plate 9g of the fitting portion 9b, gas-liquid introduction holes 9h for ventilating the inside of the container body 2 are formed together with the gas-liquid introduction holes 7b. These gas-liquid introduction holes 7b and 9h Thereby, the gas-liquid introduction path 14 communicates from the sprayer body 7 to the intake 9.

The intake 9 is provided with a cap 18 having a vertically inserted hole 18a inserted above the substrate 9a. The female screw 18b of the cap 18 and the cap 2 By screwing a male screw (not shown) on the outer periphery of the mouth, the sprayer 3 can be mounted on the container body 2.

The procedure for using the spray container 1 will be described below (FIGS. 1 to 4). Note that L in the figure indicates a liquid material. (1) Attach the sprayer 3 to the mouth of the container body 2 filled with the liquid material. Then, holding the container body 2 and repeatedly turning the trigger 8 with one hand, the large-diameter cylinder 13 is reciprocated back and forth to gradually raise the liquid material in the container body 2 through the tube 10, and further reverse the intake 9. Stop valve 1
7 is pushed up and sucked into the small-diameter cylinder 11.

When the trigger 8 is pulled during the turning operation of the trigger 8, the outside air sealing portions 120 d and 121 d of the plunger 12 are pushed from the inner surface of the small diameter cylinder 11 by the outside air introduction rib 11 d provided on the small diameter cylinder 11. Open, the outside air introduction path along the inner surface of the small diameter cylinder 11, the gas-liquid introduction hole 11c, the gas-liquid introduction path 14, the gas-liquid introduction holes 7b, 9
External air is introduced into the upper space inside the container main body 2 via h, and the negative pressure inside the container main body 2 is released.

When the trigger 8 is pulled out during the turning operation of the trigger 8, the residual pressure sealing portion 120 e of the plunger 12 is moved to the inner surface of the small diameter cylinder 11 by the residual pressure introducing rib 11 e provided on the small diameter cylinder 11. To open the residual pressure introduction path along the inner surface of the small-diameter cylinder 11, the gas-liquid introduction hole 11c, the gas-liquid introduction path 14, and the gas-liquid introduction holes 7b, 9h.
, The residual pressure of the small diameter cylinder 11 is introduced into the plunger 2, and a sufficient suction pressure required in the subsequent liquid suction step is formed inside the small diameter cylinder 11.

The opening timing of the outside air seal portions 120d and 121d by the above-described outside air introduction rib 11d (outside air introduction) and the residual pressure seal portion 1 by the residual pressure introduction rib 11e.
The opening timing of 20e (residual pressure introduction) is, for example, as follows (a)
(C) in this order.

(A) The outside air seal portions 120d and 121d reach the outside air introduction rib 11d and are opened to introduce outside air.

(B) The outside air seals 120d and 121d are closed by passing through the outside air introduction rib 11d, and the introduction of outside air is stopped.

(C) The residual pressure seal portion 120e reaches the residual pressure introducing rib 11e and is opened to introduce the residual pressure.

(2) The turning operation of the trigger 8 is further repeated, and as shown in FIG. 2, the liquid material L guided into the small-diameter cylinder 11 is passed through the above-mentioned liquid-passing holes 120a and 121a to the large-diameter cylinder 13 side. Let it. When the rotary operation of the trigger 8 is further performed, the inside of the small-diameter cylinder 11 and the large-diameter cylinder 13 is filled with the liquid material L, and the hydraulic pressure is gradually increased, but the hydraulic pressure is lower than the urging force of the spring 15. in case of,
Due to the urging force of the spring 15, the distal end portion 121e of the sub-plunger 121 contacts the contact portion 13f of the nozzle portion 13c of the large-diameter cylinder 13, and the spin element portion 13 in front of the contact portion 13f.
The flow to e is shut off.

(3) Small-diameter cylinder 11 and large-diameter cylinder 13
When the internal pressure is accumulated to a predetermined pressure and the trigger 8 is further pulled, as shown in FIG. 3, a pressing force is generated due to a difference in cross-sectional area between the small-diameter cylinder 11 and the large-diameter cylinder 13 (cylinder portion 13b). The amount of backward movement of the plunger 12 is greater than the amount of backward movement of the large-diameter cylinder 13 due to the turning operation of the trigger 8, and the contact portion 1 of the large-diameter cylinder 13
3f and the front end 121e of the sub-plunger 121 are separated from each other. As a result, the liquid material L is dispensed from the nozzle 1
The liquid material L is supplied to the spin element portion 13e side in 3c, and is uniformly ejected to the outside at a high liquid pressure through the nozzle hole of the nozzle tip 13g.

(4) In the process of ejecting the liquid from the nozzle portion 13c of the large-diameter cylinder 13, when the trigger 8 is pulled to the end point, the residual pressure seal portion 120e of the main plunger 120 is moved to the residual pressure introduction rib of the small diameter cylinder 11. 11e, the residual pressure and residual liquid of the small-diameter cylinder 11 flow out through a residual-pressure introduction path that forms a gap between the outer peripheral surface of the main plunger 120 and the inner peripheral surface of the small-diameter cylinder 11, and the gas-liquid introduction hole 11c Flows into. Since the residual pressure and residual liquid in the small-diameter cylinder 11 flow into the container body 2 through the gas-liquid introduction path 14 and the gas-liquid introduction holes 7b and 9h, the hydraulic pressure in the small-diameter cylinder 11 and the large-diameter cylinder 13 is reduced. descend. Thereafter, due to the elastic force of the spring 15, the distal end portion 121e of the sub-plunger 121 seals the contact portion 13f of the large-diameter cylinder 13 and stops jetting from the nozzle portion 13c. The eruption can be suppressed.

However, the spray container 1 has the following (A) to
(F). (A) Outside air seal portions 120d and 121d of plunger 12
(FIG. 5) The plunger 12 has a plurality of (two in the present embodiment) external air seal portions 120d in the axial direction (longitudinal direction).
121d is provided.

The outside air seal portion 121d is shown in FIG.
As shown in the figure, it is provided on the rear part of the sub-plunger 121 and is located on the outer side of the small-diameter cylinder 11. The outer outside air seal portion 121 d forms an expanding skirt shape (tapered shape) toward the inner side of the small-diameter cylinder 11 and slides on the inner surface of the small-diameter cylinder 11. Outside air seal part 121
The preferred spread angle θo of d is 6 to 12 degrees, and the preferred sliding contact length A with the inner surface of the small diameter cylinder 11 is 0.1 to 1.0 mm.

The inside / outside air seal portion 120d is shown in FIG.
As shown in the figure, it is provided at an intermediate portion of the main plunger 120 and is located inside the small-diameter cylinder 11. The inner / outside air seal portion 120 d forms an expanding skirt (tapered) toward the outer side of the small-diameter cylinder 11 and slides on the inner surface of the small-diameter cylinder 11. Inside / outside air seal 120
The preferred widening angle θi of d is 10 to 16 degrees, and the preferred sliding contact length B with the inner surface of the small diameter cylinder 11 is 0.1 to 1.0 mm.

Therefore, in the spray container 1,
According to the configuration of (A), the following effects are obtained. When the trigger 8 is pulled, the gas is discharged together with the residual pressure in the small-diameter cylinder 11 and the gas-liquid introduction hole 11 in the inner surface of the cylinder 11 is discharged.
around c, the outside air seal portion 120d of the plunger 12,
Residual liquid sandwiched between 121d and the residual pressure seal portion 120e is supplied to a plurality of outside air seal portions 1 multiplexed and arranged in a plurality of stages.
20d and 121d reliably seal, and no liquid leaks to the external space beyond the outside air seal portions 120d and 121d. Therefore, all of the remaining liquid is supplied to the gas-liquid introduction hole 1.
1c can be guided to the container body 2 through the gas-liquid introduction path 14.

The outer air seal portion 121d forms an expanding skirt toward the inner side of the small-diameter cylinder 11 and slides on the inner surface of the small-diameter cylinder 11, and the inner outer air seal portion 120d is formed on the outer side of the small-diameter cylinder 11. The diametrically extending skirt is formed so as to slide on the inner surface of the small-diameter cylinder 11. Therefore, the above-mentioned liquid leakage prevention performance by the outside air seal portions 120d and 121d can be improved.

The outside air seal portion 121d adjusts the expansion angle.
6 to 12 degrees, the length of sliding contact with the inner surface of the small-diameter cylinder 11 is 0.1 to
1.0mm, and the inside / outside air seal part 120d
10 to 16 degrees, the length of sliding contact with the inner surface of the small-diameter cylinder 11 is 0.1 to
By being 1.0 mm, both outside air seal portions 120d,
The liquid leakage prevention performance described above by 121d can be further improved.

(B) Outside air seal portion 120 of plunger 12
Open structure of d, 121d and residual pressure seal portion 120e (FIG. 6) Gas-liquid introduction hole 11 formed in the lower surface of small diameter cylinder 11
A rib 11d for introducing outside air is provided on the inner surface in front of c, and a rib 11e for introducing residual pressure is provided on the inner surface behind the gas-liquid introduction hole 11c.

The outside air seal portion 1 of the plunger 12
When the trigger 8 is pulled in the process of rotating the trigger 8, the outside air introduction rib 20 d and 121 d are pushed open from the inner surface of the small diameter cylinder 11 by the outside air introduction rib 11 d of the small diameter cylinder 11, and the outside air introduction path along the inner surface of the small diameter cylinder 11. Can communicate with the gas-liquid introduction hole 11c of the small-diameter cylinder 11. Thereby, in the pressurizing step of the plunger pump 6, outside air can be introduced into the container body 2 in order to release the negative pressure in the upper space inside the container body in the preceding liquid suction step.

The residual pressure seal portion 12 of the plunger 12
Reference numeral 0e denotes a residual pressure introducing rib 11e of the small-diameter cylinder 11 when the trigger 8 is pulled out during the turning operation of the trigger 8.
Is pushed open from the inner surface of the small-diameter cylinder 11, and the residual pressure introduction path along the inner surface of the small-diameter cylinder 11
It can communicate with one of the gas-liquid introduction holes 11c. This allows
At the end of the pressurizing step of the plunger pump 6, the residual pressure in the small-diameter cylinder 11 can be removed so as to stop the ejection of the liquid material started by the movement of the plunger 12 by the predetermined hydraulic pressure in the small-diameter cylinder 11.

Therefore, in the spray container 1,
According to the configuration of (B), the following effects are obtained. While the trigger 8 is being pulled (before the residual pressure is removed), the outside air seal portions 120d and 121 of the plunger 12 are opened.
An outside air introduction rib 11 d that opens the outside air introduction path by pushing d from the inside of the small diameter cylinder 11 is provided on the inside of the small diameter cylinder 11. Therefore, when the trigger container is used in an inclined state, the air replacement is performed at the same time as the trigger 8 is pulled, and when the trigger 8 is pulled, the outside air introduction path is closed, so that there is no liquid leakage and the air replacement is surely performed. Is performed.

With the trigger 8 pulled out, the residual pressure introducing rib 1 for opening the residual pressure introducing path by pushing open the residual pressure sealing portion 120e of the plunger 12 from the inner surface of the small diameter cylinder 11 is opened.
1e was provided on the inner surface of the small-diameter cylinder 11. Therefore, the residual pressure seal 120e of the plunger 12 is positively pushed open by the residual pressure introducing rib 11e even if the internal pressure of the cylinder 11 becomes high because of the pressure accumulating type spray container 1. Thus, the operation of introducing the residual pressure into the container body 2 is ensured.

(C) Structure for Equalizing Amount of Injection from Nozzle 13c of Large Diameter Cylinder 13 At the inner edge of the opening of cylinder 13b of large diameter cylinder 13,
A plunger stopper 13i for restricting the movement of the plunger 12 (sub plunger 121) is provided. The plunger stopper 13i is a plunger 1 for ejecting a liquid material.
2 depending on the relative movement with respect to the large-diameter cylinder 13, the residual pressure seal portion 120 e provided on the main plunger 120 is moved out of the opening operation position of the residual pressure introduction path (the small diameter cylinder 11.
(A position not reaching the residual pressure introducing rib 11e). Specifically, the movement of the plunger 12 is restricted by abutting the large-diameter seal portion 121b of the sub-plunger 121 with the above-described plunger stopper 13i.

Therefore, in the spray container 1,
The following effects are obtained by the configuration of (C). When the trigger 8 is pulled to eject a liquid material, if the trigger 8 is pulled quickly, the hydraulic pressure in the cylinders 11 and 13 rises more than necessary, but the relative stroke of the plunger 12 with respect to the large-diameter cylinder 13 is reduced by the plunger stopper 13i.
It is regulated and fixed. The plunger stroke regulated by the plunger stopper 13i holds the residual pressure seal portion 120e of the plunger 12 outside the opening operation position of the residual pressure introduction path in response to the relative movement of the plunger 12 with respect to the large-diameter cylinder 13. .

Therefore, regardless of the pulling speed of the trigger 8, it is possible to prevent the residual pressure seal portion 120e of the plunger 12 from opening the residual pressure introduction path at an early stage.
To avoid early removal of residual pressure in the chamber. This prevents the ejection of the liquid material from being stopped early, prevents a decrease in the ejection amount from the start of ejection, and makes the ejection amount constant.

(D) Fitting Structure of Intake 9 (FIG. 7) The fitting portion 9b of the intake 9 with respect to the fitting wall portion 7d of the sprayer body 7 is provided at the position where the check valve (17) of the tube portion 9c is provided. It was a start-up fitting part that was started up higher.

The rising fitting portion 9b is formed only in a semicircle on the side opposite to the plunger pump 6 around the position where the check valve (17) is provided.

Therefore, in the spray container 1, this
The following effects are obtained by the configuration of (D). Fitting portion 9 of intake 9 to sprayer body 7
b is a start-up fitting portion 9b which rises to a position higher than the check valve arrangement portion of the intake 9. Thereby, the fitting force of the intake 9 to the sprayer main body 7 is increased, and the bending moment due to the contact of the sprayer main body 7 with the hand,
The effect of the accumulated pressure of the plunger pump 6 trying to disengage the fitting portion 9b between the sprayer body 7 and the intake 9 can be stably canceled. Therefore, it is possible to prevent the intake 9 and the container main body 2 from falling off from the sprayer main body 7 even after a long use.

The rise fitting portion 9b of the intake 9 is provided only on the side opposite to the plunger pump around the check valve arrangement portion. Accordingly, the plunger pump 6 is disposed on the side of the plunger pump 6 around the check valve arrangement portion of the intake 9.
A space for disposing the cylinders 11 and 13 can be formed. That is, it is possible to secure the above-described operation while keeping the overall shape of the trigger sprayer 3 compact.

(E) Trigger 8 mounting structure (FIGS. 8 to 1)
0) The trigger 8 (FIG. 8 (A)) can be pre-assembled rotatably on the trigger mounting member 80 (FIG. 8 (B)) (FIGS. 9 and 1).
0). That is, pre-assembly is performed by press-fitting the both-side rotating pins 8c of the trigger 8 into the both-side C-shaped engaging portions 81 of the trigger mounting member 80. As a result, the trigger 8 is mounted on the sprayer main body 7 in a state where the trigger 8 is preassembled rotatably on the trigger mounting member 80.

Therefore, in the spray container 1,
The configuration (E) has the following operation. That is, the trigger 8 is mounted on the sprayer main body 7 in a state in which the trigger 8 is preassembled rotatably on the trigger mounting member 80, and the assemblability of the trigger 8 with respect to the sprayer main body 7 can be improved.

The liquid substance which can be jetted out of the spray container according to the present invention is a finishing agent for clothing having a viscosity of about 1 cp to 20 cp which can be jetted with this type of trigger type spraying container, and a pasting agent for clothing. 21cp ~ 100c which could not be sprayed uniformly with conventional spray containers
Liquid substances having a viscosity of about cp, such as a finishing agent for clothing and a paste for clothing, can be uniformly spouted while suppressing dripping.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention. For example, the spring 15 that urges the tip of the plunger 12 toward the nozzle portion 13c may be used as the plunger 1 that slides inside the large-diameter cylinder 13.
The rear end of the large-diameter seal portion 121b and the small-diameter cylinder 11
The spring 15 may be placed in a non-contact state with the liquid material to prevent corrosion of the spring 15 so that the liquid material can be ejected regardless of the liquid property.

[0063]

As described above, according to the present invention, in a pressure accumulating type spray container, it is possible to prevent a liquid material discharged from a small diameter cylinder together with residual pressure from leaking into an external space when a trigger is pulled. Can be.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a spray container.

FIG. 2 is a sectional view showing a liquid suction process of a trigger sprayer.

FIG. 3 is a sectional view showing a process of ejecting a liquid by a trigger sprayer.

FIG. 4 is a sectional view showing a process of stopping the ejection of the liquid by the trigger sprayer.

FIG. 5 is a schematic view showing an outside air seal portion of the plunger.

FIG. 6 is a schematic diagram showing a rib for introducing outside air and a rib for introducing residual pressure of a small-diameter cylinder.

FIG. 7 is a schematic view showing an intake.

FIG. 8 is a schematic diagram showing a trigger and a trigger mounting member.

FIG. 9 is a side view showing a pre-assembled state of the trigger.

FIG. 10 is a plan view showing a pre-assembled state of the trigger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spray container 2 Container main body 3 Trigger sprayer 4 Horizontal pipe 5 Vertical pipe 6 Plunger pump 7 Sprayer main body 8 Trigger 9 Intake 10 Tube 11 Small diameter cylinder 11c Gas-liquid introduction hole 12 Plunger 120d, inside and outside air seal part 120e Remaining Pressure seal part 121d Outer outside air seal part 13 Large diameter cylinder 13c Nozzle part 14 Gas-liquid introduction path

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuru Iwatsubo 2-1-3 Bunka, Sumida-ku, Tokyo Kao Co., Ltd. Inside the research laboratory (72) Masami Mizukawa 2-chome, Sakumacho, Kanda, Chiyoda-ku, Tokyo Shares Mitani Valve Co., Ltd. (72) Inventor Ikuki Ando 2-7-7 Kanda Sakumacho, Chiyoda-ku, Tokyo Mitani Valve Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) B05B 11/00 102

Claims (3)

(57) [Claims] 1. A trigger sprayer is attached to an opening of a container body for filling a liquid material. The trigger sprayer is provided with a horizontal pipe and a vertical pipe which communicate with each other. The plunger pump includes a sprayer main body, a trigger rotatably mounted on the sprayer main body, an intake mounted on the vertical conduit, and a tube mounted on the intake. , The plunger pump is mounted on the sprayer body.
A small-diameter cylinder fixed in a horizontal pipeline and the spray
The small-diameter syringe is guided in a reciprocating
The plunger is disposed at the front of the
Injection of liquid into the above small-diameter cylinder by rotating the gar
A large-diameter cylinder that reciprocates in a direction, and a nozzle portion for ejecting a liquid material in front of the large-diameter cylinder . The plunger includes the small-diameter cylinder and the large-diameter cylinder. Siri
Reciprocally slidable within the cylinder and with the biasing force of the spring
The tip of the plunger is pressed against the nozzle and
The sprayer body and the intake are disposed so as to block the passage of liquid through the nozzle portion .
Moves with the large-diameter cylinder when the rigger is pulled
Open by the plunger and open air and the small diameter
A gas-liquid introduction path that guides the residual pressure in the cylinder into the container body
In the spray container provided , the small-diameter cylinder is provided with a gas-liquid introduction hole for guiding outside air and the residual pressure in the small-diameter cylinder to the gas-liquid introduction path,
The plunger has an external air seal portion that slides on the inner surface of the small-diameter cylinder and opens and closes an external air introduction passage connected to the gas-liquid introduction hole, and a residual pressure introduction passage that slides on the inner surface of the small-diameter cylinder and communicates with the gas-liquid introduction hole. A spray container provided with a residual pressure seal portion that opens and closes, and a plurality of outside air seal portions that form a plurality of stages in the axial direction of the plunger. 2. The outside air seal portion, wherein the plurality of outside air seal portions include an outside air seal portion located outside the small-diameter cylinder and an inside air seal portion located inside. Has an expanded skirt shape toward the inner side of the small-diameter cylinder and is in sliding contact with the inner surface of the small-diameter cylinder, and the inner and outer air seal portion has an expanded skirt shape toward the outer side of the small-diameter cylinder. The spray container according to claim 1, wherein the spray container is in sliding contact with the inner surface of the small-diameter cylinder. 3. The outside air seal portion has an expansion angle of 6 to 3.
12 degrees, the sliding contact length with the inner surface of the small-diameter cylinder is 0.1 to 1.0
3. The spray container according to claim 2, wherein the inner and outer air seal portions have an expansion angle of 10 to 16 degrees and a sliding contact length with the inner surface of the small-diameter cylinder of 0.1 to 1.0 mm.