JP3105804B2 - 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. If the trigger container is used at an angle, the air is replaced at the same time as the trigger is pulled.
Since the air introduction channel is still formed,
The liquid in the container enters the air introduction path, and tends to cause liquid leakage.

It is conceivable to provide an outside air seal portion for closing the above-described air introduction path on the pulling-out side of the trigger. In this case, however, it is not possible to make the air replacement time long, so that the air replacement is sufficient. May not be.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pressure accumulating type spray container, in which, when a trigger is pulled, air is introduced into the container when air is replaced, thereby preventing leakage of liquid and ensuring air replacement.

[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, and a gas-liquid for guiding outside air and residual pressure in the small-diameter cylinder into the container body when the trigger is pulled on the sprayer body and the intake. The plunger pump includes an introduction passage, and the plunger pump includes a small-diameter cylinder disposed in a horizontal conduit of the sprayer main body , and a circumference of the small-diameter cylinder.
A cylindrical cover integrated with the sprayer body in a box,
A base end is inserted into the inside of the cylindrical cover, and the cylindrical cover is
Reciprocating within a certain range and at the tip
Large-diameter cylinder with nozzle section and inside of the cylindrical cover
And the small-diameter cylinder and the large-diameter cylinder communicate with each other.
The large-diameter cylinder is loaded from the small-diameter cylinder into the large-diameter cylinder.
And a large-diameter cylinder.
Of the large-diameter cylinder
A plunger that shuts off the liquid passage to the spill section;
Between the small diameter cylinder and the plunger inside the cylinder.
The plunger in its original position on the side of the large-diameter cylinder.
Press the large diameter cylinder against the cylindrical cover.
And a spring for pressing the plunger to the position.
Gives the rotation operation of the trigger to the large-diameter cylinder
The cylindrical cover covers the large-diameter cylinder against the pressure of the spring.
From the original position to the side closer to the small-diameter cylinder.
In the cylinder between the large-diameter cylinder and the small-diameter cylinder.
The hydraulic pressure acting on both end faces of the plunger is increased between
The plunger is operated by the difference between the hydraulic pressure and the cross-sectional area of both cylinders.
Is the original position on the side of the large-diameter cylinder against the pressure of the spring
From the large-diameter cylinder to the small-diameter cylinder.
Open the liquid passage to the nozzle part of the Linda, and
In the spray container for ejecting liquid from the sprayer body, the gas-liquid introduction path is provided annularly around the small-diameter cylinder of the sprayer main body, and an outside air introduction hole for leading outside air to the gas-liquid introduction path near the front of the small-diameter cylinder. Along with
A residual pressure introduction hole for guiding the residual pressure in the small diameter cylinder to the gas-liquid introduction path is provided near the rear of the small diameter cylinder, and the plunger slides in contact with the inner surface of the small diameter cylinder and communicates with the outside air introduction hole. An outside air seal that opens and closes
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 residual pressure introduction hole is provided, between the outside air introduction hole forming portion and the residual pressure introduction hole forming portion on the small diameter cylinder outer peripheral portion. A partition portion is provided, the front of the partition portion is an annular outside air introduction path around the outside air introduction hole, the rear of the partition portion is the gas-liquid introduction path around the residual pressure introduction hole, and the small diameter of the sprayer main body. An outside air communication passage is provided above the periphery of the cylinder so as to communicate the space above the outside air introduction passage with the gas-liquid introduction passage.

According to the first aspect of the present invention,
Has the effect of If the trigger container is used with the outside air introduction path connected to the outside air introduction hole opened by the outside air seal part of the plunger to perform air replacement by pulling the trigger,
Alternatively, when the residual pressure seal portion of the plunger opens the residual pressure introduction path connected to the residual pressure introduction hole on the pulling-out side of the trigger, the liquid reaching the gas-liquid introduction path from the inclined container side, or the gas-liquid from the small diameter cylinder side The residual liquid that has reached the introduction path is blocked by the partitioning part from moving toward the outside air introduction path. At this time, since the communication path connecting the gas-liquid introduction path to the outside air introduction path is provided at the upper part of the sprayer main body, the liquid (the lower part of the annular gas-liquid introduction path) blocked by the above-described partition portion is provided. Side) does not move to the side of the outside air introduction path via the upper communication path. Thus, the liquid blocked by the above-described partitioning portion is smoothly guided from the lower side of the gas-liquid introduction path into the container body, and does not leak.

The outside air introduction hole and the outside air introduction passage connected to the outside air introduction hole, which form the above air replacement passage, are a residual pressure introduction passage in which the residual pressure seal portion of the plunger is connected to the residual pressure introduction hole on the side where the trigger is cut off. When the residual pressure is introduced (until the trigger returns and the outside air seal portion of the plunger closes the above-described outside air introduction path), the opening is continued, and as a result, the air replacement time can be increased, and the air replacement time can be increased. It can be assured. Thus, for example, even in a use situation where a high-viscosity liquid material narrows the air replacement path and air replacement is difficult, air replacement can be reliably performed.

[0010]

FIG. 1 is a sectional view showing a state before a trigger sprayer ejects a liquid, FIG. 2 is a sectional view showing a state where a trigger sprayer ejects a liquid, and FIG. FIG. 4 is a cross-sectional view showing an air replacement path, FIG. 5 is a schematic view showing an outside air seal portion of a plunger, and FIG. 6 is a schematic view showing an outside air introduction rib and a residual pressure introduction rib of a small-diameter cylinder. 7 is a schematic diagram 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, 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 an annular 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.

The spray container 1 will be described in more detail. The small-diameter cylinder 11 is fitted and fixed in the horizontal pipeline 4 with the opening 11a facing forward, and a flange 11b is formed at the opening edge. Is provided. In front of the small-diameter cylinder 11, outside air is supplied to the gas-liquid introduction path 1.
4 is formed, and a communication hole 11g for communicating the inside of the small-diameter cylinder 11 with the vertical pipe 5 is formed in the inner surface 11f. Further, near the rear of the small-diameter cylinder 11, there is formed a residual-pressure introduction hole 11d for guiding the residual pressure in the small-diameter cylinder 11 to the gas-liquid introduction passage 14, and an inner surface of a portion located behind the residual-pressure introduction hole 11d is formed. The residual pressure introduction rib 11e is formed (FIG. 6). When the outer air seal portion 121d and the inner air seal portion 120d of the plunger 12, which will be described later, pass through the outer air introduction hole 11c by the rotation operation of the trigger 8, the large-diameter cylinder 13 and the cylindrical cover 16 An outside air introduction path extending from the gap to the outside air introduction hole 11c is formed. Also, the residual pressure seal portion 120e of the plunger 12
When reaching the residual pressure introduction rib 11e, the residual pressure and residual liquid in the small diameter cylinder 11 pass through a gap formed between the residual pressure seal portion 120e and the seal portion 120d of the sub-plunger 121, and the residual pressure introduction hole 11d. Through the gas-liquid introduction hole 7b into the container body 2. At this time, the liquid is sealed by 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, so that the residual pressure residual liquid is smoothly removed from the residual pressure introduction hole 11d.

At this time, in the present embodiment, a flange-shaped partition portion 11h is provided between the outside air introduction hole 11c forming portion and the residual pressure introducing hole 11d forming portion on the outer peripheral portion of the small diameter cylinder 11, and the partition portion 11h is formed. The front is an annular outside air introduction passage 14A around the outside air introduction hole 11c, and the back of the partition 11h is the gas-liquid introduction passage 1 around the residual pressure introduction hole 11d.
It is set to 4. Further, the outside air introduction path 14A
A groove-shaped outside air communication passage 14B communicating the upper space of the above with the gas-liquid introduction passage 14 is provided. The small-diameter cylinder 11 is a substantially cylindrical rotating body and can rotate freely in the horizontal pipeline 4, and the outside air introduction hole 11 c of the small-diameter cylinder 11 may be located on the lower side in the horizontal pipeline 4. The outside air communication passage 14B is always fixed to the upper side of the horizontal pipeline 4.

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 extending from the base 3a is provided, and the large-diameter cylinder 13 can be moved rearward by pressing the protrusion 13h with a pressing portion 8b provided on the rear surface of the trigger 8 described later. It has become.

The plunger 12 includes 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 a front portion is reduced in diameter and a rear portion is expanded in diameter, and a liquid material flows 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 length direction facing the front end of the main plunger 120 communicates with the liquid passage hole 120a of the main plunger 120. Large 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, Those outside air seal parts 1
20 d and 121 d are the outside air introduction holes 11 of the small-diameter cylinder 11.
c, and the outside air flows through the outside air introduction passage 14A, the outside air communication passage 14B, and the gas-liquid introduction passage 14 from the outside air introduction passage connected to the outside air introduction hole 11c. Even if the operation is repeated, 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 conduit 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 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 tube 9c, the tube 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.

A gas-liquid introduction hole 9h for ventilating the inside of the container body 2 is formed in the top plate 9g of the fitting portion 9b together with the gas-liquid introduction hole 7b. The 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 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 portion 12 of the plunger 12 is
0d and 121d are outside air introduction holes 11c of the small-diameter cylinder 11.
Passes through the outside air introduction path along the inner surface of the small-diameter cylinder 11, the outside air introduction hole 11c, the outside air introduction path 14A, the outside air communication path 14B, the gas-liquid introduction path 14, and the gas-liquid introduction holes 7b, 9h. It is introduced into the upper space inside the main body 2 to release negative pressure inside the container main body 2.

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. , The residual pressure introduction path along the inner surface of the small-diameter cylinder 11, the residual pressure introduction hole 11d, the gas-liquid introduction path 14, and the gas-liquid introduction holes 7b and 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.

(2) The turning operation of the trigger 8 is further repeated, and the liquid L guided into the small-diameter cylinder 11 is caused to flow to the large-diameter cylinder 13 through the liquid-flow holes 120a and 121a. 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 this case, the distal end portion 121e of the sub-plunger 121 abuts on the abutting portion 13f of the nozzle portion 13c of the large-diameter cylinder 13 due to the urging force of the spring 15, and the liquid flow to the spin element portion 13e in front thereof is shut off. You.

(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. 2, a pressing force is generated due to a difference in 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 introducing rib of the small diameter cylinder 11. 11e, the residual pressure and the 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 residual pressure introduction hole 11d 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)
It has the characteristic configuration of (G). (A) The air replacement path by the outside air introduction hole 11c and the outside air introduction path 14A, the outside air communication path 14B, and the partition 11h (FIG. 4). A partition 11h is provided between the outside air introduction hole 11c formation portion and the residual pressure introduction hole 11d formation portion on the outer peripheral portion of the small diameter cylinder 11, and the front of the partition portion 11h is an annular outside air introduction passage 14A around the outside air introduction hole 11c. The rear side of the partition 11h is an annular gas-liquid introduction passage 14 around the residual pressure introduction hole 11d. Then, the small-diameter cylinder 1 of the sprayer body 7
An external air communication path 14B is provided in an upper part around the outside, which communicates the space above the external air introduction path 14A with the gas-liquid introduction path 14.
Thus, the small-diameter cylinder 11 is a substantially cylindrical rotating body and can freely rotate in the horizontal pipeline 4.
The outside air communication passage 14B is always fixed to the upper side of the horizontal pipeline 4 even if the outside air introduction hole 11c is located on the lower side in the horizontal pipeline 4.

Therefore, in the spray container 1,
The following effect is obtained by the configuration of (A). When the trigger container 1 is used with the trigger container 1 tilted in a state where the outside air introduction path connected to the outside air introduction hole 11c is opened by the outside air seal portions 120d and 121d of the plunger 12 to perform the air replacement by pulling the trigger 8, or the trigger 8 When the residual pressure seal portion 120e of the plunger 12 opens the residual pressure introduction path connected to the residual pressure introduction hole 11d on the cut-off side of
The liquid that has reached the gas-liquid introduction path 14 from the inclined container side, or the residual liquid that has reached the gas-liquid introduction path 14 from the small-diameter cylinder side, is blocked by the partition 11h from moving toward the outside air introduction path 14A. At this time, the gas-liquid introduction path 14 is connected to the outside air introduction path 14.
A communication passage 14B communicating with the sprayer body 7
The liquid (at the lower side of the annular gas-liquid introduction passage 14) dammed by the above-described partition 11h moves toward the outside air introduction passage 14A through the upper communication passage 14B. Never do. As a result, the liquid blocked by the partition 11h is smoothly guided from the lower side of the gas-liquid introduction path 14 into the container body, and does not leak.

The outside air introduction hole 11c and the outside air introduction passage connected to the outside air introduction hole 11c, which form the above-described air replacement passage, are arranged such that the residual pressure seal portion of the plunger 12 is connected to the residual pressure introduction hole 11d on the side where the trigger 8 is pulled off. Even when the residual pressure is introduced, the continuous residual pressure introduction path is opened (until the trigger 8 returns and the external air seal portions 120d and 121d of the plunger 12 close the above-described external air introduction path).
Air replacement time can be lengthened, and air replacement can be ensured. Thus, for example, even in a use situation where a high-viscosity liquid material narrows the air replacement path and air replacement is difficult, air replacement can be reliably performed.

(B) Outside air seal portion 120 of plunger 12
d, 121d (FIG. 5) The plunger 12 has a plurality of (two in this embodiment) external air seal portions 120d in the axial direction (longitudinal direction).
121d is provided.

FIG. 5A shows the outside air seal portion 121d.
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,
(B) has the following effects. 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 released.
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 outside 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 outside 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 widening 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.

(C) Residual pressure seal portion 120 of plunger 12
e opening structure (FIG. 6) The residual pressure seal portion 120e of the plunger 12 is
When the trigger 8 is pulled off during the turning operation of the small diameter cylinder 11, the residual pressure introduction rib 11e of the small diameter cylinder 11 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 is moved. Residual pressure introduction hole 11
Communication with d is possible. Thereby, the plunger pump 6
At the end of the pressurizing step, the residual pressure in the small-diameter cylinder 11 can be removed to stop the ejection of the liquid material started by the movement of the plunger 12 by the predetermined liquid pressure in the small-diameter cylinder 11.

Therefore, in the spray container 1,
The following effects are obtained by the configuration of (C). With the trigger 8 pulled out, a residual pressure introducing rib 11e is provided on the inner surface of the small diameter cylinder 11 to push open the residual pressure seal portion 120e of the plunger 12 from the inner surface of the small diameter cylinder 11 to open a residual pressure introduction path. Therefore, even though the internal pressure of the cylinder 11 becomes high because of the pressure accumulating type spray container 1, the residual pressure seal portion 120e of the plunger 12 can be used.
Are positively pushed open by the residual pressure introducing rib 11e, and the operation of introducing the residual pressure into the container body 2 is ensured.

(D) 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 (D). 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, irrespective 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.

(E) 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 pipe 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,
The following effects are obtained by the configuration of (E). 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 of the check valve provided and on the side opposite to the plunger pump. 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.

(F) The mounting structure of the trigger 8 (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 (F) 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 material that can be jetted out of the spray container according to the present invention is, for example, a finish for clothing and a paste for clothing having a viscosity of about 1 cp to 20 cp, which can be jetted with this type of trigger type spray container. 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 can 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.

[0057]

As described above, according to the present invention, in a pressure accumulating type spray container, when air is introduced to introduce outside air into the container when a trigger is pulled, liquid leakage is prevented and air replacement is ensured. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state before a trigger sprayer ejects liquid.

FIG. 2 is a sectional view showing a state in which a trigger sprayer ejects a liquid.

FIG. 3 is a cross-sectional view showing a state in which a trigger sprayer stops ejecting liquid.

FIG. 4 is a sectional view showing an air replacement path.

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 diagram 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 Outside air introduction hole 11d Residual pressure introduction hole 11e Residual pressure introduction rib 11h Partitioning part 12 Plunger 120d, inside and outside air sealing part 120e Residual pressure sealing part 121d Outside and outside air sealing part 13 Large diameter cylinder 13c Nozzle part 14 Gas and liquid introduction path 14A Outside air introduction path 14B Outside air communication 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 (1)

(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 sprayer body and the intake include a gas-liquid introduction path for guiding outside air and residual pressure in the small-diameter cylinder into the container body when the trigger is pulled, and the plunger pump includes the sprayer body. A small-diameter cylinder disposed in a horizontal pipeline of the small- diameter cylinder;
A cylindrical cover around which the sprayer body is integrated
And a base end inserted into the inside of the cylindrical cover, and
The bar can be reciprocated within a certain range and the tip
A large-diameter cylinder having a nozzle portion at its portion,
A system in which the small-diameter cylinder and the large-diameter cylinder communicate with each other.
The small-diameter cylinder is loaded into the inner space of the
It has a liquid passage hole through which the liquid material passes through the
The large diameter cylinder positioned at the original position on the side of the cylinder
A plunger that shuts off the liquid passage to the nozzle portion, and the small diameter
Between the small diameter cylinder and the plunger inside the cylinder
The plunger is positioned at the original position on the side of the large-diameter cylinder.
And press the large-diameter cylinder against the cylindrical cover.
A spring for pressing the trigger to the original position.
Pressing the large-diameter cylinder against the spring
From the original position with respect to the cylindrical cover.
The large-diameter cylinder and the small-diameter cylinder.
Acts on both ends of the plunger in the cylinder space of the cylinder
And the difference between the hydraulic pressure and the cross-sectional area of both cylinders
Therefore, the plunger is pressed against the large diameter
Move from the original position on the side of the cylinder to the side of the small-diameter cylinder.
The liquid passage to the nozzle portion of the large-diameter cylinder
A spray container for ejecting a liquid material from the nozzle portion, wherein the gas-liquid introduction path is provided annularly around the small-diameter cylinder of the sprayer main body, and outside air is supplied to the gas-liquid introduction path near the front of the small-diameter cylinder. And a residual pressure introducing hole for guiding the residual pressure in the small-diameter cylinder to the gas-liquid introduction passage near the rear of the small-diameter cylinder, and slidingly contacting the plunger with the inner surface of the small-diameter cylinder. An outside air seal portion that opens and closes an outside air introduction path connected to the outside air introduction hole, and 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 residual pressure introduction hole. A partition portion is provided between the outside air introduction hole forming portion and the residual pressure introduction hole forming portion of the portion, and the front of the partition portion is an annular outside air introduction path around the outside air introduction hole, and the partition portion is provided. The rear is the gas-liquid introduction path around the residual pressure introduction hole, and an external air communication path is provided above the sprayer body around the small-diameter cylinder to communicate the space above the external air introduction path with the gas-liquid introduction path. A spray container characterized by becoming.