JP2013132592A - Trigger type sprayer and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger type sprayer which allows reduction of the number of components and is easy to assemble, and to provide a method of manufacturing the same.SOLUTION: The trigger type sprayer 100 includes: a first member which is a unit of a cylinder part 3 to which a liquid is introduced from a tube part 9, a body part 1 incorporating the cylinder part 3, a trigger part 4 pivoted to the body part 1, a nozzle window part 4a formed at the trigger part 4, a spring 6 attached to the body part 1 and abutted on the trigger part 4, and a cap part 2 attached to the body part 1 and attachable to a mouth part of a container; a second member which is a unit of a piston part 13 slidable inside the cylinder part 3, a continuous and bendable liquid distribution part 12, a spinner part 14 provided on the distal end, and a nozzle part 15; an F valve 7a, housed at the lower end part of the cylinder part 3, for opening and closing the passage of the liquid into the cylinder part 3; and an S valve 7b, housed in the piston part 13, for opening and closing the passage of the liquid into the liquid distribution part 12.

Description

  The present invention relates to a trigger sprayer and a method for manufacturing the same, and more particularly to a trigger sprayer that can reduce the number of parts and that can be easily assembled and a method for 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 sprays liquid by utilizing the pressure change. Many types have been developed.

  For example, a cap attached to the mouth of the container body, a base body having a cylinder part and a cover member engaged with the cap, a piston part slidable in the cylinder part, and the piston part up and down A trigger-type pump dispenser provided with a trigger structure to be slid (see, for example, Patent Document 1), a body portion attachable to a mouth portion of a container body, a cylinder portion provided integrally with the body portion, A piston part slidable in the cylinder part; a balance arm part pivotally attached to a body part for sliding the piston part up and down; a trigger part for rotating the balance arm part; and a balance arm part Trigger type pump dispenser provided with a spring part for returning the trigger part via a cover and a cover member attached to the body part (for example, patent document) Reference), body body attached to the container cap, cylinder structure attached to the body body, piston body slidable on the outer wall surface of the cylinder part provided in the cylinder structure, and rotation to the body body A trigger sprayer (for example, refer to Patent Document 3), which is composed of an attached trigger body, pressurizes the liquid in the cylinder portion with the piston body by drawing the trigger body and ejects the liquid from the nozzle portion communicating with the cylinder portion. It has been.

JP 2008-36488 A JP 2010-137129 A JP 2011-206746 A

  However, each of the conventional trigger sprayers including the trigger sprayers described in Patent Documents 1 to 3 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 thereof is to provide a trigger sprayer that can reduce the number of parts as much as possible and can be easily assembled, and a method for manufacturing the same.

  The present inventor has intensively studied to solve the above problems, and found that the above problems can be solved by setting the number of parts to at least four of the first member, the second member, the F valve, and the S valve. The present invention has been completed.

  The present invention includes (1) a tube portion, a cylinder portion into which liquid is introduced from the tube portion, a main body portion in which the cylinder portion is built, a trigger portion pivotally attached to the main body portion, and the trigger portion A first member in which a nozzle window portion formed on the body, a spring attached to the main body portion and brought into contact with the trigger portion, and a cap portion attached to the main body portion and attachable to the mouth portion of the container, are integrated; A piston part slidable in the cylinder part, a liquid circulation part that can be bent continuously with the piston part, a spinner part provided at a tip of the liquid circulation part, and a nozzle part attached to the spinner part; The integrated second member, an F valve that opens and closes the flow path of liquid into the cylinder part accommodated in the lower end of the cylinder part, and S that opens and closes the flow path of liquid into the liquid circulation part housed in the piston part. Valve, from Ri consists in triggering sprayer nozzle portion is fitted in the nozzle window.

  The present invention resides in (2) the trigger type sprayer according to the above (1), wherein the trigger portion is provided with a nozzle lid for sealing the nozzle window portion.

  The present invention provides (3) the trigger sprayer according to (1) or (2), wherein a hook is provided in the trigger, and a spring is bent against the hook. Exist.

  The trigger type screw according to any one of the above (1) to (3), wherein the first member and the second member are both made of synthetic resin and manufactured by injection molding. Be in the player.

  The present invention is (5) the method for manufacturing a trigger sprayer according to any one of (1) to (4) above, wherein an F valve is attached to the cylinder portion of the first member, and the second member The present invention resides in a trigger sprayer manufacturing method obtained by attaching an S valve to a piston portion, press-fitting a piston portion of a second member into a cylinder portion, and fitting a nozzle portion into a nozzle window portion.

The trigger type sprayer of the present invention can reduce the number of parts extremely more than the conventional trigger type sprayer by setting the number of parts to at least four points of the first member, the second member, the F valve and the S valve. it can.
Thereby, it can be set as a trigger type sprayer at very low cost.
Further, since the number of parts is small, the number of assembling steps is small, and the assembling can be easily performed.
Furthermore, by making the F valve and the S valve the same, three types of parts can be obtained as a whole.

  In the trigger type sprayer of the present invention, when a nozzle lid for sealing the nozzle window is attached, for example, when not in use, the nozzle lid is fitted into the nozzle window to prevent liquid leakage Can do.

In the trigger sprayer of the present invention, the spring force of the spring can be sufficiently exhibited by bringing the spring attached to the main body portion into contact with the hook portion in a bent state.
Thereby, after pulling the trigger part forward, when the trigger part is released, the trigger part returns to the original position by the spring force of the spring.

  In the trigger type sprayer of the present invention, when both the first member and the second member are synthetic resins and are manufactured by injection molding, they can be easily mass-produced even if they have a complicated structure. .

  In the trigger sprayer manufacturing method of the present invention, the F valve is attached to the cylinder part of the first member, the S valve is attached to the piston part of the second member, and the piston part of the second member is press-fitted into the cylinder part, Since it is obtained by fitting the nozzle part to the nozzle window part, the assembly is extremely easy.

FIG. 1A is a sectional view showing an embodiment of a trigger sprayer according to the present invention, and FIG. 1B is a side view thereof. FIG. 2 is a cross-sectional view showing a first member of the trigger sprayer according to the present embodiment. FIG. 3A is a cross-sectional view showing a second member of the trigger sprayer according to the present embodiment, and FIG. 3B is a side view thereof.

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.

FIG. 1A is a sectional view showing an embodiment of a trigger sprayer according to the present invention, and FIG. 1B is a side view thereof.
As shown in FIG. 1A, a trigger sprayer 100 according to this embodiment includes a tube portion 9, a cylinder portion 3 into which liquid is introduced from the tube portion 9, and the cylinder portion 3. Main body 1, trigger portion 4 pivotally attached to the main body portion 1, nozzle window portion 4 a formed in the trigger portion 4, and spring 6 attached to the main body portion 1 and in contact with the trigger portion 4. A cap part 2 attached to the body part 1 and attachable to the mouth of the container; a piston part 13 slidable in the cylinder part 3; and a liquid circulation part 12 that can be bent continuously from the piston part 13; , A spinner portion 14 provided at the tip of the liquid circulation portion 12, a nozzle portion 15 attached to the spinner portion 14, and a liquid flow path into the cylinder portion 3 accommodated in the lower end portion of the cylinder portion 3. F valve 7a , And S valve 7b which is accommodated in the piston portion 13 to open and close the flow path of the liquid to the liquid distribution portion 12, made of.

Here, in the trigger sprayer 100, the tube portion 9, the cylinder portion 3, the main body portion 1, the trigger portion 4, the nozzle window portion 4a, the spring 6, and the cap portion 2 are integrated. The piston part 13, the liquid circulation part 12, the spinner part 14, and the nozzle part 15 are integrated.
That is, the trigger type sprayer 100 includes a tube portion 9, a cylinder portion 3, a main body portion 1, a trigger portion 4, a nozzle window portion 4 a, a spring 6, and a cap portion 2. One member, the piston part 13, the liquid circulation part 12, the spinner part 14, and the nozzle part 15 are composed of four points of the integrated second member, the F valve 7a and the S valve 7b.

According to the trigger type sprayer 100, the number of parts is set to at least four points of the first member, the second member, the F valve 7a, and the S valve 7b, so that the number of parts is extremely higher than that of the conventional trigger type sprayer. Can be reduced.
Thereby, it can be set as the trigger type sprayer 100 of very low cost.
Furthermore, by making the F valve and the S valve the same, three types of parts can be obtained as a whole.
Further, since the number of parts is small, the number of assembling steps is small, and the assembling can be easily performed.

FIG. 2 is a cross-sectional view showing a first member of the trigger sprayer according to the present embodiment.
As shown in FIG. 2, the first member 50 includes a tube portion 9, a cylinder portion 3, a main body portion 1, a trigger portion 4, a nozzle window portion 4 a, a spring 6, and a cap portion 2.

In the first member 50, a cap portion 2 is provided at the lower portion of the main body portion 1, and the cap portion 2 can be attached to a mouth portion of a container (not shown) that can store a liquid.
In other words, the trigger sprayer 100 can be attached to and detached from a commercially available container via the cap unit 2.
The shape of the container is not limited as long as the cap 2 of the trigger sprayer 100 can be attached to the mouth.

In the first member 50, a hollow cylindrical cylinder portion 3 is built in the main body portion 1. The cylinder portion 3 is disposed inside the cap portion 2.
A tube portion 9 is suspended from the lower end of the cylinder portion 3 so as to communicate with the cylinder portion 3.
The tube portion 9 has a tip immersed in a liquid in a container (not shown).
Thereby, the liquid in the container is introduced from the tube portion 9 into the cylinder portion 3.

In the first member 50, the main body 1 has a plate-like spring 6 bent in a U shape attached to the front end.
The spring 6 comes into contact with a hooking portion 4b of the trigger portion 4 described later (see FIG. 1).

The main body 1 includes a protruding portion 1a curved rearward, and a pivoting portion 1b is provided at the rear end of the protruding portion 1a.
The main body 1 includes the protrusion 1a, so that when the trigger sprayer 100 is gripped, the finger (for example, when the trigger 4 is pulled with the middle finger or the ring finger, pulls the base of the thumb) on the protrusion 1a. Can be hung.
Therefore, by bringing the hand into contact with the protruding portion 1a, the trigger sprayer 100 can be easily held and not easily slipped.
Moreover, the trigger part 4 is pivotally attached to the pivot part 1b, and the trigger part 4 is rotatable with respect to the main body part 1 in the direction of the arrow (see FIG. 2).

  In the first member 50, the trigger portion 4 includes a hook portion 4 b that comes into contact with the spring 6 in a bent state when the trigger portion 4 is closed, and a hole portion 16 a that is pivotally attached to the piston portion of the second member. And are installed internally.

Further, the trigger portion 4 is formed with a nozzle window portion 4a into which the nozzle portion 15 of the second member is fitted.
The nozzle part 15 is positioned by being fitted to the nozzle window part 4a.
It should be noted that the nozzle window 4a may be provided with a flap that foams the liquid sprayed from the spinner section 14, for example.

Furthermore, a nozzle lid 20 that seals the nozzle window 4 a is further attached to the trigger portion 4.
The nozzle lid 20 can seal the nozzle window 4a by fitting into the nozzle window 4a.
Thus, for example, when the nozzle lid 20 is not used, the liquid can be reliably prevented from leaking by fitting the nozzle lid 20 into the nozzle window 4a.

FIG. 3A is a cross-sectional view showing a second member of the trigger sprayer according to the present embodiment, and FIG. 3B is a side view thereof.
As shown in FIG. 3, the second member 51 includes a piston part 13, a liquid circulation part 12, a spinner part 14, and a nozzle part 15.

In the second member 51, the piston portion 13 is provided with a pair of convex portions 16b pivotally attached to the hole portions 16a of the trigger portion 4 described above on the outer walls on both sides of the upper portion.
As a result, in conjunction with the rotation of the trigger portion 4, the piston portion 13 is pushed down or pushed up to slide the cylinder portion 3.
Moreover, the piston part 13 becomes a flow path of the liquid inside.
For this reason, when the piston part 13 slides downward in the cylinder part 3, the liquid in the cylinder part 3 flows through the flow path in the piston part 13 to the liquid circulation part 12 continuous to the piston part 13. Will be.

The liquid circulation part 12 is bendable, and a plurality of ribs 12a are provided on the outer wall.
Thereby, even if it bends, an internal channel | path will not be crushed and the intensity | strength of the liquid distribution | circulation part 12 will improve.
Further, the liquid circulation part 12 is provided with a spinner part 14 at the tip, and a nozzle part 15 attached to the spinner part 14 is attached.

Here, in the trigger sprayer 100 according to the present embodiment, the first member 50 and the second member 51 described above are all synthetic resins such as PE, PP, POM (polyoxymethylene), and are formed by injection molding. It has been manufactured.
Therefore, there is no backlash between the component parts, and even a complicated structure can be easily manufactured, and mass production is also possible.

In the trigger sprayer 100, an F valve 7 a that is accommodated in the lower end portion of the cylinder portion 3 and opens and closes the flow path of the liquid into the cylinder portion 3 is provided.
Thereby, when the liquid in a container is introduce | transduced in the cylinder part 3, F valve 7a opens a flow path, and when a liquid is sprayed, F valve 7a closes a flow path. Yes.
Further, an S valve 7 b that is accommodated in the piston portion 13 and opens and closes the flow path of the liquid into the liquid circulation portion 12 is provided.
Thereby, when the liquid in the piston part 13 is pushed out, the S valve 7b opens the flow path by the momentum, and the S valve 7b closes the flow path after being pushed out.

Therefore, in the trigger type sprayer 100, by providing the F valve 7a and the S valve 7b, it becomes possible to suppress the back flow of the liquid and to spray the liquid smoothly.
Note that the F valve and the S valve can be the same, and in that case, three types of parts can be used as a whole.

Next, the operation of the trigger sprayer 100 according to this embodiment will be described.
In trigger type sprayer 100 concerning this embodiment, trigger part 4 moves below by pulling trigger part 4 to the near side.
At this time, since the hole 16a of the trigger portion 4 is pivotally attached to the convex portion 16b of the piston portion 13, the piston portion 13 is lowered together with the trigger portion 4.
When the piston part 13 descends, the pressure in the cylinder part 3 increases and the S valve 7b is opened to push out the liquid.
The liquid flows through the liquid circulation part 12 and is sprayed from the spinner part 14 to the outside via the nozzle part 15.

When the trigger portion 4 is released from the state of being pulled forward after spraying the liquid, the trigger portion 4 returns to the original position by the spring force (that is, the return force) of the spring 6, and the piston portion 13 rises and the S valve 7b. Closes the flow path.
Thereby, spraying of the liquid is stopped, and dripping after the stop is prevented.
On the other hand, 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 to eliminate the negative pressure, the liquid in the container is sucked up, and the cylinder part 3 The liquid is filled inside.

In the trigger sprayer 100, the liquid is repeatedly sprayed from the nozzle portion 15 by repeating such an operation.
As described above, the trigger sprayer 100 can spray the liquid reliably while having a simple structure.

Next, a method for manufacturing the trigger sprayer 100 according to the present embodiment will be described.
First, the F valve 7 a is attached to the cylinder portion 3 of the first member 50.
Next, the S valve 7 b is attached to the piston portion 13 of the second member 51.
Then, the piston portion 13 of the second member 51 is press-fitted into the cylinder portion 3 of the first member 50.

Thereafter, the trigger portion 4 is rotated in the direction of the arrow in FIG. 2 so as to cover the second member 51.
At this time, the hole portion 16a of the trigger portion 4 is pivotally attached to the convex portion 16b of the piston portion 13, the spring 6 of the main body portion 1 is brought into contact with the hook portion 4b of the trigger portion 4 in a bent state, and the nozzle portion 15 is moved to the nozzle portion. The trigger type sprayer 100 in which the position of the second member 51 relative to the first member 50 is determined by fitting into the window portion 4a.

  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.

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

  For example, in the trigger sprayer 100 according to the present embodiment, the trigger lid 4 is provided with the nozzle lid 20 that seals the nozzle window 4a, but the nozzle lid 20 is not necessarily provided.

  In the trigger sprayer 100 according to the present embodiment, the spring 6 has a plate shape, but may be any shape as long as it gives a restoring force to the trigger portion, such as a coil shape, a snake shape, or a spring washer shape. Also good.

In the trigger sprayer 100 according to the present embodiment, the shapes of the F valve 7a and the S valve 7b are not particularly limited.
For example, a steel ball or the like may be used.

The trigger type sprayer of the present invention is suitably used as a device for spraying the liquid in the container by pulling the 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 ... Protrusion part 1b ... Pivoting part 2 ... Cap part 3 ... Cylinder part 4 ... Trigger part 4a ... Nozzle window part 4b ... Hook part 6 ... Spring 7a ... F valve part 7b ... S valve part 9 ... Tube part 12 ... Liquid flow part 12a ... Rib 13 ... Piston part 14 ... Spinner part 15 ... Nozzle part 16a ... Hole part 16b ... Convex part 20 ... Nozzle cover 50 ... First member 51 ... Second member 100 ... Trigger type sprayer

Claims (5)

A tube portion, a cylinder portion into which liquid is introduced from the tube portion, a main body portion in which the cylinder portion is incorporated, a trigger portion pivotally attached to the main body portion, and a nozzle window portion formed in the trigger portion A first member in which a spring attached to the main body part and abutted on the trigger part and a cap part attached to the main body part and attachable to the mouth of the container are integrated;
A piston part slidable in the cylinder part, a liquid circulation part that can be bent continuously to the piston part, a spinner part provided at a tip of the liquid circulation part, and a nozzle part attached to the spinner part; The second member,
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; and
An S valve which is accommodated in the piston part and opens and closes the flow path of the liquid into the liquid circulation part;
Consists of
A trigger sprayer in which the nozzle portion is fitted into the nozzle window portion.   The trigger type sprayer according to claim 1, wherein a nozzle lid for sealing the nozzle window portion is attached to the trigger portion. The trigger part is provided with a hook part,
The trigger type sprayer according to claim 1 or 2, wherein the spring is brought into contact with the hook portion in a bent state.   The trigger type sprayer according to any one of claims 1 to 3, wherein the first member and the second member are both made of synthetic resin and manufactured by injection molding. It is a manufacturing method of the trigger type sprayer according to any one of claims 1 to 4,
The F valve is attached to the cylinder part of the first member,
The S valve is attached to the piston portion of the second member,
Press-fit the piston part of the second member into the cylinder part,
A manufacturing method of a trigger type sprayer obtained by fitting the nozzle part to the nozzle window part.

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