JP2013056293A - Triggered sprayer and method for production thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a triggered sprayer capable of reducing the number of components and easy to assemble, and to provide a method for production thereof.SOLUTION: The triggered sprayer 100 is provided with: a body 1; a trigger 4 pivotally attached to the body 1; a spring 6 abutting on the trigger 4; a cap 2 attachable to the mouth part of a container X capable of housing a liquid; a cylinder 3 of the inside of the cap 2; an introduction part 5 interlinked to the lower end 3a of the cylinder 3; an F valve housed in the lower end 3a of the cylinder 3; a slidable piston part 13; a bendable liquid circulation part 13a connecting to the piston part 13; a spinner 14 provided at the top of the liquid circulation part 13a; a nozzle opening part 15; a support bar 16 provided to the liquid circulation part 13a and pivotally attached to the trigger 4; and an S valve 7b housed in the piston part 13. Besides, the body 1, trigger 4, spring 6, cap 2, cylinder 3, introduction part 5 and nozzle opening part 15 are integrated.

Description

  The present invention relates to a trigger sprayer and a method of manufacturing the same, and more particularly to a trigger sprayer that can reduce the number of parts and can be easily assembled and a method of manufacturing the same.

Conventionally, a trigger sprayer is known as a device for spraying a liquid contained in a container to a desired position.
Such a trigger type sprayer is a device that pressurizes and depressurizes a built-in pump by rotating the trigger, and ejects liquid by utilizing the pressure change. Many types have been developed.

For example, a pressure-accumulating trigger sprayer is known in which a discharge valve body, a discharge valve seat, a suction valve, and the like are arranged in an injection cylinder having a nozzle fitted at the tip (see, for example, Patent Document 1).
In addition, by providing a piston valve, a spring body that presses the piston valve against the piston valve seat, and a piston cover that houses them, an accumulator dispenser having a merit such that the volume of the region having an accumulator function can be reduced. It has been developed (see, for example, Patent Document 2).

JP 2009-6288 A JP 2009-160573 A

  However, each of the conventional trigger sprayers including the trigger sprayer described in Patent Document 1 or 2 has a large number of parts, and accordingly, the number of assembling steps is increased and the assembling itself is complicated.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a trigger sprayer that can reduce the number of parts and can be easily assembled, and a method for manufacturing the same.

  The present inventor has intensively studied to solve the above problems, and can solve the above problems by integrating the main body part, the cap part, the cylinder part, the introducing part, the nozzle port part, the trigger part, and the spring part. As a result, the present invention has been completed.

  The present invention includes (1) a main body part, a trigger part pivotally attached to the main body part, a spring part abutting on the trigger part, and a mouth part of a container that is contained in the main body part and can contain a liquid. A cap portion attachable to the cap portion, a cylinder portion provided inside the cap portion, an introduction portion coupled to the lower end portion of the cylinder portion, and a liquid flow accommodated in the lower end portion of the cylinder portion. An F valve that opens and closes a path; a piston portion that can slide in the cylinder portion; a liquid circulation portion that can be bent continuously to the piston portion; a spinner portion provided at a tip of the liquid circulation portion; and the spinner portion A nozzle port portion that is fitted, a support rod portion that is provided in the liquid circulation portion and pivotally attached to the trigger portion, and an S valve that is accommodated in the piston portion and opens and closes the flow path of the liquid in the cylinder portion, At least the main body, trigger, spring, Cap section, a cylinder portion, the introduction portion and the nozzle opening resides on the trigger-type sprayer which are integrated.

  The present invention resides in (2) the trigger type sprayer according to the above (1), wherein the trigger portion has a finger insertion hole portion, and a liquid is ejected by inserting and pulling a finger into the finger insertion hole portion. .

  According to the present invention, (3) the main body portion is provided with a protruding portion that comes into contact with a finger when grasping, and the protruding portion is provided below the finger insertion hole portion. Trigger type sprayer.

  In the present invention, (4) the S valve includes a valve, a valve spring portion that biases the valve upward, and a base portion that fixes the valve spring portion to the piston portion. And the trigger sprayer according to any one of (1) to (3), in which the base is integrated.

  In the present invention, (5) the piston part slides up and down in conjunction with the movement of the trigger part, and the liquid in the cylinder part is pressurized and accumulated based on the sliding of the piston part. The trigger sprayer according to any one of (1) to (4), wherein the liquid is jetted to the outside from the nozzle portion.

  The present invention is (6) the trigger sprayer manufacturing method according to any one of (1) to (5), wherein the main body, the cap, the cylinder, the introduction, the nozzle mouth, The F valve is inserted into the first member in which the trigger portion and the spring portion are integrated, and the S valve is attached to the second member in which the piston portion, the liquid circulation portion, the spinner portion, and the support rod portion are integrated, The present invention resides in a method for manufacturing a trigger type sprayer obtained by press-fitting a piston portion of a second member into a cylinder portion of one member.

Since the trigger type sprayer of the present invention has at least the main body part, the cap part, the cylinder part, the introduction part, the nozzle mouth part, the trigger part and the spring part, the number of parts can be reduced, Assembly becomes easy.
Further, at the time of assembly, each part can be easily positioned by simply press-fitting the piston part into the cylinder part.

In the trigger type sprayer of the present invention, when the trigger portion has a finger insertion hole portion, even if liquid dripping occurs from the nozzle mouth portion 15, it can be prevented from adhering to the hand.
Further, for example, a liquid such as a skin lotion can be easily sprayed on the subject by directing the nozzle portion toward the user, putting a thumb in the finger insertion hole portion, and pulling it. At this time, if a protrusion is provided on which the index finger comes into contact when the trigger is gripped, the trigger sprayer is easily held and is difficult to slide.

  In the trigger type sprayer of the present invention, when the S valve includes a valve, a valve spring portion that biases the valve upward, and a support portion that fixes the valve spring portion to the piston portion, It can be used as a sprayer of the type, and when these are integrated, the attachment is further facilitated.

  In the trigger sprayer of the present invention, the piston part slides up and down in conjunction with the movement of the trigger part, and the liquid in the cylinder part is pressurized based on the sliding of the piston part. When the accumulated liquid is ejected to the outside from the nozzle portion, it is possible to reliably eject a certain amount of liquid with a simple structure.

  In the manufacturing method of the trigger type sprayer of the present invention, since the F valve is inserted into the first member, the S valve is attached to the second member, and the piston portion is press-fitted into the cylinder portion, the assembly is extremely easy. It becomes easy.

FIG. 1 is a partial sectional view showing an embodiment of a trigger sprayer according to the present invention. 2A is a perspective view showing a first member of the trigger sprayer according to the present embodiment, and FIG. 2B is a cross-sectional view of FIG. FIG. 3A is a perspective view showing a second member of the trigger sprayer according to the present embodiment, and FIG. 3B is a cross-sectional view of FIG. 4A is a perspective view showing an S valve of the trigger sprayer according to the present embodiment, and FIG. 4B is a cross-sectional view of FIG. FIG. 5A is a cross-sectional view showing a state before the trigger portion of the trigger sprayer according to the present embodiment is pulled, and FIG. 5B is a trigger from the state of FIG. It is sectional drawing which shows the state after pulling a part.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

  The trigger sprayer of the present invention can be attached to and detached from the mouth of the container. That is, the trigger sprayer can be attached to and detached from a commercially available container via the cap portion. The container may have any shape as long as the cap of the trigger sprayer can be attached to the mouth.

FIG. 1 is a partial sectional view showing an embodiment of a trigger sprayer according to the present invention.
As shown in FIG. 1, a trigger sprayer 100 according to this embodiment includes a main body 1, a trigger part 4 pivotally attached to the main body 1, and a spring part 6 that is in contact with the trigger part 4. A cap portion 2 that is built in the body portion 1 and can be attached to the mouth of the container X, a cylinder portion 3 provided inside the cap portion 2, and an introduction connected to the lower end portion 3a of the cylinder portion 3 Part 5, an F valve 7 a that opens and closes the flow path of the liquid that is accommodated in the lower end part 3 a of the cylinder part 3, a piston part 13 that can slide in the cylinder part 3, and the piston part 13 The liquid circulation part 13a that is continuously bent and bendable, the spinner part 14 provided at the tip of the liquid circulation part 13a, the nozzle port part 15 into which the spinner part 14 is fitted, and the liquid circulation part 13a are provided. Support bar 16 pivotally attached to trigger 4 Comprises a S valve 7b which is accommodated in the piston portion 13 to open and close the flow path of the liquid in the cylinder portion 3, a.

  The trigger sprayer 100 according to the present embodiment includes a first member 50 in which the main body 1, the trigger 4, the spring 6, the cap 2, the cylinder 3, the introduction 5 and the nozzle opening 15 are integrated. Have. For this reason, the trigger type sprayer 100 can reduce the number of parts, and the whole assembly becomes easy.

2A is a perspective view showing a first member of the trigger sprayer according to the present embodiment, and FIG. 2B is a cross-sectional view of FIG.
As shown in FIG. 2A and FIG. 2B, in the first member 50, the main body portion 1 is provided with a bar-shaped spring portion 6 that extends upward. It comes into contact with the trigger part 4.
Moreover, the main-body part 1 is provided with the cap part 2, and this cap part 2 can be attached to the mouth part of the container which is not shown in figure which can accommodate a liquid.
Further, a hollow cylindrical cylinder portion 3 is provided inside the cap portion 2.

In the first member 50, the main body 1 has a wall 1a, and the cap 2 and the cylinder 3 are covered with the wall 1a. That is, the cap part 2 and the cylinder part 3 are built in the main body part 1. This facilitates gripping the trigger sprayer 100 and protects the internal structure.
Further, the main body 1 is provided with a protrusion 1b so as to be continuous with the wall 1a. Since the main body 1 has the protrusion 1b, a finger can be hooked on the protrusion 1b when the trigger sprayer 100 is gripped. It becomes easier to hold the player and less slippery.

  In the first member 50, the main body portion 1 is provided with a nozzle port portion 15 into which the spinner portion 14 is fitted. The spinner portion 14 is positioned by being fitted to the nozzle opening 15. The nozzle port 15 may be provided with a flap that makes the liquid discharged from the spinner unit 14 into a foam shape, for example.

  In the first member 50, the cylinder portion 3 has the introduction portion 5 connected to the lower end portion 3a. In the trigger sprayer 100, the introduction part 5 is inserted into the container, and the tip is immersed in the liquid in the container. Then, the liquid in the container is sucked up through the introduction part 5 and flows into the cylinder part 3. A tube or the like may be attached to the distal end of the introducing portion 5. In this case, the tip of the tube is immersed in the liquid in the container, and the liquid in the container is introduced from the tube.

  At this time, an F valve 7 a that opens and closes the flow path of the liquid into the cylinder portion 3 is provided in the lower end portion 3 a of the cylinder portion 3. Thereby, when the liquid in the container X is introduced into the cylinder part 3, the F valve 7a opens the flow path, and when the liquid is discharged, the F valve 7a closes the flow path. ing.

In the first member 50, the trigger portion 4 is pivotally attached to the main body portion 1.
The trigger part 4 has a substantially L-shape consisting of a cover part 4a and a finger holder 4b that is bent and connected from the cover part 4a. The trigger part 4 is pivotally attached to the cover part 4a. A part 16a is provided, and a finger insertion hole 8 for inserting a finger and pulling the trigger part 4 is provided in the finger insertion part 4b.

Here, in the trigger type sprayer 100 according to the present embodiment, since the trigger portion 4 has the finger insertion hole portion 8, even if liquid dripping occurs from the nozzle mouth portion 15, it can be prevented from adhering to the hand.
For example, a liquid such as a lotion can be easily sprayed on the subject by bringing the index finger into contact with the protrusion 1b, putting the thumb into the finger insertion hole 8, and pulling it.
At this time, in the trigger sprayer 100, the protrusion 1 b is provided below the finger insertion hole 8.
More specifically, the protrusion 1b and the finger insertion hole so that the finger abutting on the protrusion 1b is lower than the finger abutting on the finger insertion hole 8 when the trigger part 4 is operated. 8 is provided. For this reason, there exists an advantage that it is easy to hold | grip the trigger type sprayer 100 and to pull the trigger part 4 easily.

  One end of the lid portion 4 a is pivotally attached to the main body portion 1, and the main body portion 1 is covered by closing the trigger portion 4. When the trigger part 4 is closed, the support bar part 16 is pivotally attached to the pivot part 16a, and the position of the trigger part 4 is fixed. At the same time, the spring portion 6 is brought into contact with the lid portion 4a in a bent state.

In the first member 50, the trigger portion 4 is provided with a fitting hole portion 20a in the finger insertion portion 4b. By closing the trigger portion 4, the nozzle opening portion 15 is arranged in the fitting hole portion 20a. It has become so. Thereby, the trigger part 4 does not disturb the discharge of the liquid from the nozzle opening part 15.
Further, a stopper 20 is attached to the trigger portion 4. The stopper 20 can be fitted into the fitting hole 20a. As shown in FIG. 1, the nozzle opening 15 can be sealed by fitting the stopper 20 into the fitting hole 20a. . Moreover, since the rotation of the trigger part 4 can be locked by fitting the stopper 20 in the fitting hole part 20a, for example, it is possible to prevent liquid from leaking when not in use.

  The trigger sprayer 100 according to the present embodiment includes a second member 60 in which the piston portion 13, the liquid circulation portion 13a, the spinner portion 14, and the support rod portion 16 are integrated. For this reason, the trigger type sprayer 100 can further reduce the number of parts and can be easily assembled as a whole.

FIG. 3A is a perspective view showing a second member of the trigger sprayer according to the present embodiment, and FIG. 3B is a cross-sectional view of FIG.
As shown in FIGS. 3A and 3B, in the second member 60, the piston portion 13 slides in the cylinder portion 3. By the sliding, the liquid in the cylinder part 3 is pressurized, and the accumulated liquid is ejected from the nozzle port part 15 to the outside.

In the second member 60, as described above, the piston portion 13 is provided with the bendable liquid circulation portion 13a continuously.
In addition, the liquid circulation part 13a is provided with a spinner part 14 at the tip, and a support bar part 16 is provided in the middle part.

  The liquid circulation part 13a is positioned in a bent state by fitting the spinner part 14 to the nozzle mouth part 15 and pivoting the support bar part 16 to the pivot part 16a of the trigger part 4 (see FIG. 1). ).

  In the trigger sprayer 100, the piston portion 13 accommodates an S valve 7 b that opens and closes a liquid flow path in the cylinder portion 3.

4A is a perspective view showing an S valve of the trigger sprayer according to the present embodiment, and FIG. 4B is a cross-sectional view of FIG.
As shown in FIGS. 4A and 4B, the S valve 7b includes a valve 17a, a valve spring portion 17b for urging the valve 17a upward, and a valve spring on the piston portion 13. And a base portion 17c for fixing the portion 17b.

  The trigger sprayer 100 according to the present embodiment includes the S valve 7b in which the valve 17a, the valve spring portion 17b, and the base portion 17c are integrated. Therefore, the trigger sprayer 100 further reduces the number of parts. And the entire assembly becomes even easier.

The S valve 7b is disposed inside the piston portion 13 (see FIG. 1). At this time, the base portion 17 c is fixed to the lower end portion of the piston portion 13, and the valve 17 a is brought into contact with a valve seat in the piston portion 13.
The valve spring portion 17b can be expanded and contracted, and the valve 17a is biased to the valve seat by a certain spring force by the valve spring portion 17b.

  The S valve 7b functions as a valve that blocks the liquid flow path in the piston portion 13. That is, since the valve 17a is biased upward by the valve spring portion 17b, when the liquid in the cylinder portion 3 is pressurized to a certain pressure, the piston portion 13 is lowered and the S valve 7b and the cylinder are When the space between the portion 3 is opened and the liquid in the cylinder portion 3 is depressurized from a certain pressure, the piston portion 13 is raised and the space between the S valve 7b and the cylinder portion 3 is closed. Thereby, in the trigger type sprayer 100, since the flow of the liquid is reliably blocked by the S valve 7b, dripping can be prevented. Since the S valve 7b is hollow as shown in FIG. 4B, the S valve 7b is reduced in weight and the burden on the valve spring portion 17b is small.

Next, the operation of the trigger sprayer 100 according to this embodiment will be described.
FIG. 5A is a cross-sectional view showing a state before the trigger portion of the trigger sprayer according to the present embodiment is pulled, and FIG. 5B is a trigger from the state of FIG. It is sectional drawing which shows the state after pulling a part.

In the trigger sprayer 100 according to the present embodiment, a finger is inserted into the finger insertion hole 8 of the trigger unit 4 shown in FIG. Thus, the trigger part 4 moves downward.
At this time, since the support rod portion 16 is pivotally attached to the pivot attachment portion 16a of the trigger portion 4, the support rod portion 16 moves downward, and the piston portion 13 descends at the same time.
When the piston part 13 descends, the liquid in the cylinder part 3 is pressurized. When the liquid is accumulated to a certain pressure, the S valve 7b is opened, and the liquid circulates from the cylinder part 3 through the liquid circulation part 13a and is ejected from the spinner part 14 to the outside through the nozzle port part 15. It has come to be.

  And if a liquid is injected, the liquid in the cylinder part 3 will be pressure-reduced gradually, and the injection of a liquid will stop after that.

When the trigger part 4 is released from the state where the trigger part 4 is pulled forward after the liquid is ejected, the trigger part 4 returns to the original position by the restoring force of the spring part 6 that is in contact with the trigger part 4 while being bent, The support bar portion 16 moves upward, and the piston portion 13 rises.
When the piston part 13 rises, the space in the cylinder part 3 becomes negative pressure, so that the F valve 7a opens the flow path in order to eliminate the negative pressure, the liquid in the container is sucked up, and the cylinder part 3 It will be filled with liquid.

  In the trigger sprayer 100, a certain amount of liquid is repeatedly ejected from the nozzle opening 15 by repeating such an operation. As described above, the trigger sprayer 100 has a simple structure and can reliably eject a certain amount of liquid.

Next, a method for manufacturing the trigger sprayer 100 according to the present embodiment will be described.
In the method for manufacturing the trigger sprayer 100 according to the present embodiment, first, the main body 1, the cap 2, the cylinder 3, the introduction 5, the nozzle port 15, the trigger 4, and the spring 6 are integrated. The F valve 7a is inserted into the first member 50 (see FIG. 2).

  On the other hand, the S valve 7b (see FIG. 4) is attached to the second member 60 (see FIG. 3) in which the piston portion 13, the liquid circulation portion 13a, the spinner portion 14, and the support rod portion 16 are integrated.

  A trigger sprayer is obtained by press-fitting the piston portion 13 of the second member 60 into the cylinder portion 3 of the first member 50. The first member 50, the second member 60, the F valve 7a, and the S valve 7b described above are all made of synthetic resin and are mainly manufactured by injection molding.

Thus, in the manufacturing method of the trigger type sprayer 100, since the number of assembling steps can be reduced, the assembling is extremely easy.
Moreover, each part can be easily positioned by simply press-fitting the piston part 13 into the cylinder part 3 during assembly.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

For example, if the trigger sprayer 100 according to the present embodiment includes at least the first member 50, the number of parts can be reduced, the assembly is easy, and the positioning at the time of assembly can be performed reliably. Can play.
Therefore, the trigger sprayer 100 includes the second member 60 in which the piston portion 13, the liquid circulation portion 13a, the spinner portion 14, and the support rod portion 16 are integrated, but the piston portion 13, the liquid circulation portion 13a, and the spinner portion. 14 and the support bar 16 may be separate from each other.
Similarly, the trigger sprayer 100 has an S valve 7b in which a valve 17a, a valve spring portion 17b, and a base portion 17c are integrated. May be.

In the trigger sprayer 100 according to the present embodiment, the main body 1 is provided with a protrusion 1b so as to be continuous with the wall 1a. The protrusion 1b is not necessarily required.
Moreover, although the stopper 20 is attached to the trigger part 4, the stopper 20 does not necessarily need to have.

  In the trigger sprayer 100 according to the present embodiment, the spring portion 6 has a plate shape, but may have a coil shape, a snake shape, a spring washer shape, and the like, and the valve spring portion 17b has a snake shape. However, it may be a coil shape, a plate shape, a spring washer shape, or the like.

  In the trigger sprayer 100 according to the present embodiment, the F valve and the S valve may be integrated. In that case, there is an advantage that the number of parts as a whole becomes smaller.

  The trigger type sprayer of the present invention is suitably used as a device for injecting liquid in a container by pulling a trigger. According to the trigger type sprayer of the present invention, the number of parts can be reduced, and assembly is easy.

DESCRIPTION OF SYMBOLS 1 ... Main-body part 1a ... Wall part 1b ... Projection part 2 ... Cap part 3 ... Cylinder part 3a ... Lower end part 4 ... Trigger part 4a ... Cover part 4b .... Finger insertion part 5 ... Introduction part 6 ... Spring part 7a ... F valve part 7b ... S valve part 8 ... Finger insertion hole part 13 ... Piston part 13a ... Liquid Distribution part 14 ... Spinner part 15 ... Nozzle port part 16 ... Supporting rod part 16a ... Pivoting part 17a ... Valve 17b ... Spring part for valve 17c ... Base part 20 ... Stopper 20a ... fitting hole 50 ... first member 60 ... second member 100 ... trigger type sprayer X ... container

Claims (6)

The main body,
A trigger part pivotally attached to the main body part;
A spring part abutting against the trigger part;
A cap part built in the main body part and attachable to a mouth part of a container capable of containing a liquid;
A cylinder portion provided inside the cap portion;
An introduction part connected to the lower end part of the cylinder part;
An F valve which is accommodated in a lower end portion of the cylinder portion and opens and closes a flow path of the liquid into the cylinder portion;
A piston part slidable in the cylinder part;
A liquid circulation part that can be bent continuously from the piston part;
A spinner part provided at the tip of the liquid circulation part;
A nozzle opening portion into which the spinner portion is fitted;
A support bar portion provided in the liquid circulation portion and pivotally attached to the trigger portion;
An S valve which is accommodated in the piston part and opens and closes the flow path of the liquid in the cylinder part;
With
A trigger sprayer in which at least the main body portion, the cap portion, the cylinder portion, the introduction portion, the nozzle port portion, the trigger portion, and the spring portion are integrated. The trigger part has a finger insertion hole part,
The trigger sprayer according to claim 1, wherein the liquid is ejected by putting a finger into the finger insertion hole and pulling the finger. The main body is provided with a protrusion that abuts a finger when grasping,
The trigger sprayer according to claim 2, wherein the protrusion is provided below the finger insertion hole. The S valve comprises a valve, a valve spring portion that urges the valve upward, and a base portion that fixes the valve spring portion to the piston portion,
The trigger type sprayer according to any one of claims 1 to 3, wherein the valve, the valve spring portion, and the base portion are integrated. The piston part slides up and down in conjunction with the movement of the trigger part,
The liquid in the cylinder part is pressurized based on the sliding of the piston part, and the accumulated liquid is jetted to the outside from the nozzle part. Trigger type sprayer as described in the section. It is a manufacturing method of the trigger type sprayer according to any one of claims 1 to 5,
The F valve is inserted into a first member in which the main body portion, the cap portion, the cylinder portion, the introduction portion, the nozzle port portion, the trigger portion, and the spring portion are integrated,
The S valve is attached to the second member in which the piston part, the liquid circulation part, the spinner part, and the support bar part are integrated,
A method of manufacturing a trigger sprayer obtained by press-fitting the piston portion of the second member into the cylinder portion of the first member.

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