JP2013112365A - Trigger sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trigger sprayer which can be easily assembled and has excellent dispensing properties for liquid.SOLUTION: The trigger sprayer 100 includes: a cap part 2 fitted to an container X; a body part 1 engaged to the cap part and having a first flow path R1 through which a liquid can flow; a cylindrical cylinder part 3 communicating with the first flow path; an F valve 7a stored in the cylinder part and opening and closing the flow path of the liquid communicating with the cylinder part 3 from the first flow path; a piston part 13 sliding in the cylinder part and having a second flow path R2 in which the liquid can flow; a trigger part 4 sliding the piston part in back and forth; an S valve 7b stored in the piston part and opening and closing a liquid flow path communicating with the second flow path from the cylinder part 3; a spinner part 14 connected with the S valve through a spring part 6; a nozzle part 15 on which the spinner part is fitted; and a cover part 9 for covering the body part 1, and the cylinder part 3, the F valve, the piston part 13, the S valve, the spinner part 14 and the nozzle part 15 are linearly arranged.

Description

  The present invention relates to a trigger sprayer, and more particularly to a trigger sprayer that is easy to assemble and has excellent liquid discharge properties.

Conventionally, a trigger type sprayer is known as a device for spraying a liquid contained in a container to a desired position.
A trigger sprayer is a device that pressurizes and depressurizes a built-in pump by rotating the trigger, and discharges liquid using the pressure change. Types have been developed (see, for example, Patent Document 1).

By the way, since the trigger type sprayer generally has a large number of parts, there is a disadvantage that it takes time to assemble.
On the other hand, a pressure-accumulation type trigger type liquid ejector in which a top cylinder-shaped mounting base, a vertical cylinder, an injection cylinder, and a cylinder are integrally formed is known (for example, see Patent Document 2). According to such a trigger type liquid ejector, since the mounting base portion with the top shape, the vertical tube, the injection tube, and the cylinder are integrated, it is relatively easy to assemble.

JP 2009-160573 A JP 2009-6288 A

  However, the trigger type sprayer described in Patent Document 2 is not necessarily easy to assemble because the cylinder protrudes obliquely downward and forward from the corner portion of the injection cylinder and the vertical cylinder.

  Moreover, the conventional trigger type sprayers including the trigger type sprayers described in Patent Documents 1 and 2 generally differ in the direction in which the pump pressurizes and depressurizes the liquid and the direction in which the liquid is discharged. That is, the liquid compressed in the pump flows upward, then bends, flows in the horizontal direction, and is discharged. For this reason, bending causes an increase in friction with the flow path wall surface, which tends to adversely affect liquid ejection momentum (hereinafter referred to as “ejection performance”).

  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 is easy to assemble and has excellent liquid discharge properties.

  The present inventor has intensively studied to solve the above-mentioned problems. As a result, in addition to the F valve (first valve), the piston part, the S valve (second valve), the spring part (valve spring), the spinner part and the nozzle part, the cylinder part Has also found that the above-mentioned problems can be solved by arranging them linearly, and the present invention has been completed.

  The present invention includes (1) a cap portion that can be attached to a container, a main body portion that is engaged with the cap portion and has a first flow path through which liquid can flow, and a cylindrical shape that communicates with the first flow path. A cylinder part, an F valve which is accommodated in the cylinder part and opens / closes a flow path of liquid from the first flow path to the cylinder part, and a second flow which is slidable in the cylinder part and allows liquid to flow therethrough A piston portion having a path; a trigger portion that slides the piston portion back and forth; an S valve that is accommodated in the piston portion and that opens and closes a liquid flow path from the cylinder portion to the second flow path; and a spring on the S valve A spinner part connected via a part, a nozzle part to which the spinner part is attached, and a cover part that covers the main body part, and includes a cylinder part, an F valve, a piston part, an S valve, a spinner part, and a nozzle part. Le portion resides in the trigger-type sprayer which is arranged in a straight line.

  According to the present invention, (2) the trigger type scissors according to the above (1), wherein the cylinder portion is larger in diameter than the first flow path and the second flow path, and the liquid is stored therein. Be in the player.

  This invention exists in the trigger type sprayer as described in said (1) or (2) currently pivoted by the main-body part so that a trigger part can turn (3).

  This invention exists in the trigger type sprayer as described in any one of said (1)-(3) with which the main-body part and the cylinder part are united.

  This invention exists in the trigger type sprayer as described in any one of said (1)-(4) with which (5) S valve | bulb, the spring part, and the spinner part were united.

  (6) The trigger sprayer according to any one of (1) to (5), wherein the cover portion is engaged with the main body portion and includes a protruding portion protruding rearward.

In the trigger sprayer of the present invention, the cylinder part, F valve, piston part, S valve, spring part, spinner part and nozzle part are arranged in a straight line, so that the assembly becomes easy.
In addition, since the direction in which the liquid is pressurized and depressurized in the cylinder part is the same as the direction in which the liquid is discharged, the liquid compressed in the cylinder part is discharged from the nozzle part without attenuating the momentum of flow. Is done. For this reason, the trigger type sprayer has excellent liquid discharge properties.

  In the trigger type sprayer of the present invention, the cylinder portion has a diameter larger than that of the first flow path and the second flow path, and a sufficient amount of liquid can be stored inside. Since the liquid can be stored, a sufficient amount of liquid can be discharged.

In the trigger type sprayer of the present invention, when the trigger part is pivotally attached to the main body part so as to be rotatable, the structure becomes simple.
Further, since the piston portion slides back and forth in accordance with the rotation of the trigger portion, the operation for discharging the liquid becomes extremely easy.

In the trigger type sprayer of the present invention, when the main body portion and the cylinder portion are integrated, the number of parts is reduced, so that the assembly becomes easier.
In addition, when the S valve, the spring portion, and the spinner portion are integrated, the assembly is further facilitated.

In the trigger type sprayer of the present invention, when the cover part is engaged with the main body part, the mounting is easy and the main body part is protected by the cover part.
In addition, when the cover portion includes a protruding portion that protrudes rearwardly, the trigger sprayer can be easily grasped and the trigger portion can be easily pulled forward by hooking the hand on the protruding portion.

FIG. 1 is a cross-sectional view showing an embodiment of a trigger sprayer according to the present invention. FIG. 2 is a cross-sectional view showing a first member of the trigger sprayer according to the present embodiment. FIG. 3 is a cross-sectional view showing a piston portion of the trigger sprayer according to the present embodiment. FIG. 4 is a schematic view showing a second member of the trigger sprayer according to the present embodiment. (A) of FIG. 5 is a front view of the cover part of the trigger type sprayer according to the present embodiment, and (b) is a cross-sectional view taken along the line TT of (a). FIG. 6 is a schematic view showing a part of the trigger sprayer assembling method according to the present embodiment. FIG. 7 is a perspective view showing the trigger sprayer according to the present embodiment. FIG. 8 is a cross-sectional view showing a state after pulling the trigger portion of the trigger sprayer according to the present embodiment.

  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. 1 is a cross-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 cap part 2 that can be attached to a container X, and a first flow path R1 that is engaged with the cap part 2 and through which a liquid can flow. A main body portion 1, a tube portion 8 fitted in the first flow path R 1, a cylindrical cylinder portion 3 communicating with the first flow path R 1, and a first flow path accommodated in the cylinder portion 3. An F valve 7a that opens and closes the flow path of the liquid communicating from the path R1 into the cylinder section 3, and a piston section 13 that has a second flow path R2 that is slidable in the cylinder section 3 and through which the liquid can flow. A trigger portion 4 that slides the piston portion 13 back and forth, an S valve 7b that is accommodated in the piston portion 13 and that opens and closes a liquid flow path from the cylinder portion 3 to the second flow path R2, and the S valve 7b is connected via spring 6 It comprises a spinner portion 14, a nozzle portion 15 in which the spinner unit 14 is mounted, a cover portion 9 which covers the main body 1, a.

In the trigger sprayer 100 according to the present embodiment, the F valve 7a, the cylinder part 3, the piston part 13, the S valve 7b, the spring part 6, the spinner part 14 and the nozzle part 15 are arranged in a straight line. For this reason, the assembly becomes extremely easy.
In addition to the F valve 7a, the piston part 13, the S valve 7b, the spring part 6, the spinner part 14 and the nozzle part 15, the cylinder part 3 is further arranged in a straight line, so that the cylinder part 3 pressurizes the liquid. The direction in which the pressure is reduced is the same as the direction in which the liquid is discharged. For this reason, the liquid compressed in the cylinder part 3 receives the friction from the wall surface of the flow path as much as possible, and is discharged from the nozzle part 15 without attenuating the flow force. As a result, the trigger sprayer 100 is excellent in liquid discharge performance.

  The trigger type sprayer 100 according to this embodiment includes a first member in which the main body 1, the cylinder 3 and the trigger 4 are integrated, and a first member in which the S valve 7b, the spring 6 and the spinner 14 are integrated. 2 members. That is, the trigger sprayer 100 according to the present embodiment includes a first member, a piston portion 13, a second member, an F valve 7a, a nozzle portion 15, and a cover portion 9. Thereby, since the trigger type sprayer 100 can reduce the number of parts, the assembly | attachment of the whole becomes easier. The first member, the piston portion 13, the second member, the F valve 7a, the nozzle portion 15 and the cover portion 9 are all made of synthetic resin such as PP and PE, and are mainly manufactured by injection molding.

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 is integrally mounted with the main body 1 and the cylinder 3, and is pivotally attached to the main body 1 so that the trigger 4 can be rotated.

The main body 1 has a first flow path R1 through which liquid can flow.
And this 1st flow path R1 is connected to the cylinder part 3 by which the upper end was provided ahead. That is, the liquid flowing in from the first flow path R1 passes through the upper end of the first flow path R1, flows into the cylinder part 3, and is stored. At this time, the cylinder part 3 is larger in diameter than the first flow path R1 and the second flow path R2 described later so that a sufficient amount of liquid can be stored. In the trigger sprayer 100, since the liquid is once stored in the cylinder part 3, even if the first flow path R1 receives friction from the flow path wall surface, the discharge of the liquid is not affected.

  In the main body 1, an air passage S <b> 1 is provided so as to be parallel to the first flow path R <b> 1, and an auxiliary cylinder portion 3 a communicating with the air passage S <b> 1 is provided in parallel with the cylinder portion 3. Details of the air path S1 and the auxiliary cylinder portion 3a will be described later.

The main body portion 1 is provided with a first engagement portion 1b at the lower end, and a second engagement portion 1c is provided above the first engagement portion 1b.
And the main-body part 1 can be easily attached to the opening part of the container X by pressing down the 1st engaging part 1b with the cap part 2. FIG. In other words, the cap portion 2 can be engaged through the first engagement portion 1b, and the cover portion 9 can be engaged through the second engagement portion 1c (see FIG. 1). .

  The cap part 2 can be attached to and detached from the mouth part of the container X. That is, the trigger sprayer 100 can be attached to and detached from the commercially available container X via the cap unit 2. The container X may have any shape as long as the cap part 2 of the trigger sprayer 100 can be attached to the mouth part. Details of the cover 9 will be described later.

In the trigger sprayer 100 according to the present embodiment, the tube portion 8 is fitted in the first flow path R1 of the main body portion 1 (see FIG. 1).
In the trigger sprayer 100, the tip of the tube portion 8 is immersed in the liquid in the container X (not shown), and the liquid in the container X passes from the tube portion 8 to the first flow path R1 of the main body portion 1. To be introduced.

The trigger part 4 is pivotally attached to the pivot part 1a of the main body part so as to be rotatable. For this reason, the structure is simple.
Moreover, since the piston part 13 slides back and forth according to the rotation of the trigger part 4, the operation of discharging the liquid becomes very easy.

The trigger portion 4 includes a plate-like elastic plate 4a, and the elastic plate 4a is brought into contact with the main body portion by rotating the trigger portion 4 in the direction of arrow A (see FIG. 2) and closing it. It has become.
When the trigger portion 4 is pulled toward the front with the trigger portion 4 closed, the elastic plate 4a is bent, and when the trigger portion 4 is released from the state pulled toward the front, the return force of the bent elastic plate 4a triggers the trigger. The part 4 returns to the original position.

  In the main body 1, an F valve 7 a that opens and closes the liquid flow path from the first flow path R 1 to the cylinder section 3 is provided in the cylinder section 3 (see FIG. 1). Thereby, when the liquid in the container X is introduced into the cylinder part 3, the F valve 7a opens the flow path. When the liquid is discharged from the nozzle part 15, the F valve 7a passes through the flow path. It is supposed to close.

FIG. 3 is a cross-sectional view showing a piston portion of the trigger sprayer according to the present embodiment.
As shown in FIG. 3, the piston portion 13 has a threaded portion 23 a, a middle abdomen portion 23 b that continues to the threaded portion 23 a, and a diameter that is continuous with the middle abdomen portion 23 b and is larger than the screwed portion 23 a and the middle abdomen portion 23 b. And the flange portion 23c having a large diameter.
Moreover, the piston part 13 has 2nd flow path R2 which can distribute | circulate a liquid inside.

In the piston portion 13, the flange portion 23 c is in contact with the inner surface of the cylinder portion 3. Thereby, when the piston part 13 is slid, the flange part 23c slides on the inner surface of the cylinder part 3, and the liquid in the cylinder part 3 is pressurized or depressurized.
For example, when the liquid in the cylinder part 3 is pressurized, the accumulated liquid flows into the second flow path R <b> 2 in the piston part 13.

The piston part 13 has the auxiliary piston part 13a branched to the middle part 23b. The auxiliary piston portion 13a slides in the auxiliary cylinder portion 3a described above.
Further, the auxiliary cylinder portion 3a communicates with the inside of the container through the air path S1. And when the auxiliary piston part 13a slides, the negative pressure hole (not shown) formed in the auxiliary cylinder part 3a is opened and closed, and the negative pressure in the container is eliminated.

  As for piston part 13, nozzle part 15 is attached to screwing part 23a. At this time, the nozzle portion 15 is screwed into the screw portion 23a of the piston portion 13 so that the nozzle opening portion 15a abuts on a spinner portion 14 described later (see FIG. 1). In addition, the nozzle part 15 may be provided with a flap that makes the liquid discharged from the spinner part 14 into a foam shape, for example.

FIG. 4 is a schematic view showing a second member of the trigger sprayer according to the present embodiment.
As shown in FIG. 4, the second member 60 includes the S valve 7 b, the spring portion 6, and the spinner portion 14 that are linearly integrated, and is inserted into the second flow path R <b> 2 of the piston portion 13 described above. Be placed.

In the second member 60, the spinner part 14 is fixed in the piston part 13, and the S valve 7 b is biased to one side (right side) by the spring part 6.
Then, for example, when the trigger part 4 is pulled forward with a finger, the piston part 13 is slid, and when the liquid in the cylinder part 3 is pressurized to a certain pressure, the spring part 6 contracts to cause the S valve. When the trigger portion 4 is opened from the finger and the liquid in the cylinder portion 3 is depressurized, the pressure between the S valve 7b and the piston portion 13 is reduced by the return force of the spring portion 6. The gap is closed. That is, the S valve 7b functions as a valve that blocks the second flow path R2 in the piston portion 13. 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.

(A) of FIG. 5 is a front view of the cover part of the trigger type sprayer according to the present embodiment, and (b) is a cross-sectional view taken along the line TT of (a).
As shown to (a) of FIG. 5, the inside of the cover part 9 is hollow, and can accommodate the 1st member 50 here.
Further, as shown in FIG. 5B, the cover portion 9 is provided with an engaged portion 9a on the inner side and a protruding portion 9b protruding rearward.

The cover part 9 is attached to the main body part 1 by engaging the engaged object 9a with the second engaging part 1c provided in the main body part 1 described above.
In the trigger sprayer 100, the cover portion 9 can be easily attached, and the main body portion 1 is reliably protected by providing the cover portion 9.

In the trigger sprayer 100, since the cover portion 9 includes the protruding portion 9b protruding rearward, the trigger sprayer 100 can be easily grasped by hooking the hand on the protruding portion 9b.
There is also an advantage that the trigger unit 4 can be easily pulled forward from the state where the trigger sprayer 100 is held.

Next, a method for assembling the trigger sprayer 100 according to the present embodiment will be described.
FIG. 6 is a schematic view showing a part of the trigger sprayer assembling method according to the present embodiment.
As shown in FIG. 6, in the method for assembling the trigger sprayer 100 according to the present embodiment, first, the F valve 7 a is inserted into the cylinder portion 3 of the first member 50.

  Next, the second member 60 is inserted into the second flow path R <b> 2 of the piston portion 13, and this is inserted into the gap portion 50 a of the first member 50. At this time, the hook portion 50 b provided in the trigger portion 4 is hooked by a not-shown convex portion provided on both sides of the piston portion 13, whereby the piston portion 13 is positioned with respect to the trigger portion 4. As a result, the piston portion 3 slides back and forth based on the rotation of the trigger portion 4.

  Then, the trigger portion 4 of the first member 50 is rotated and closed, so that the piston portion 13 is press-fitted into the cylinder portion 3. At this time, the flange portion 23c of the piston portion 13 is attached so as to slide in the cylinder portion 3, and the auxiliary piston portion 13a slides in the auxiliary cylinder portion 3an. As a result, the piston portion 13 is incorporated into the first member 50.

  And the nozzle part 15 is attached to the screwing part 23a of the piston part 13. FIG.

  Thereafter, the cap part 2 and the cover part 9 are engaged with the main body part 1, and the container X is attached to the cap part 2, whereby the trigger sprayer 100 shown in FIG.

Thus, in the assembly method of the trigger sprayer 100, the cylinder part 3, the F valve 7a, the piston part 13, the S valve 7b, the spinner part 14 and the nozzle part 15 are arranged in a straight line. Is extremely easy.
Moreover, at the time of an assembly | attachment, only the piston part 13 is press-fit in the cylinder part 3 while rotating the trigger part 4, and an assembly | attachment of each part can be performed easily.

Next, the operation of the trigger sprayer 100 according to this embodiment will be described.
FIG. 8 is a cross-sectional view showing a state after pulling the trigger portion of the trigger sprayer according to the present embodiment.
As shown in FIG. 8, in the trigger sprayer 100 according to the present embodiment, the piston portion 13 slides to the right together with the auxiliary piston portion 13a by pulling the trigger portion 4 forward.

  When the piston part 13 slides, the liquid in the cylinder part 3 is pressurized, and when the liquid reaches a certain pressure, the S valve 7b is opened, and the liquid flows from the cylinder part 3 through the second flow path R2 to reach the spinner. The ink is discharged to the left outside through the part 14 and the nozzle part 15. Thus, in the trigger sprayer 100, the direction in which the liquid is pressurized and depressurized by the cylinder portion 3 is the same as the direction in which the liquid is discharged.

  When the liquid is discharged, the liquid in the cylinder portion 3 is gradually depressurized, and then the liquid discharge is stopped.

When the trigger part 4 is released from the state where the trigger part 4 is pulled forward after the liquid is discharged, the trigger part 4 is returned to the original position by the restoring force of the elastic plate 4a in contact with the body part 1 while being bent, The piston part 13 slides to the left.
When the piston part 13 slides, 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, and the liquid in the container X sucks up through the tube part 8. As a result, the cylinder portion 3 is filled with liquid.

  In the trigger sprayer 100, a certain amount of liquid is repeatedly discharged from the nozzle unit 15 by repeating such an operation. As described above, the trigger type sprayer 100 has a simple structure and can efficiently discharge liquid.

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

For example, the trigger sprayer 100 according to the present embodiment has a first member in which the main body 1, the cylinder 3 and the trigger 4 are integrated, but the main body, the cylinder and the trigger are Each may be a separate body.
Similarly, the trigger type sprayer 100 has a second member in which the S valve 7b, the spring part 6 and the spinner part 14 are integrated, but the S valve, the spring part and the spinner part are separate from each other. There may be.
Further, the F valve 7 a and / or the cover portion 9 may be integrated with the main body portion 1.

  In the trigger sprayer 100 according to the present embodiment, the elastic plate 4a that gives the restoring force of the trigger portion 4 has a plate shape, but may have a coil shape, a meandering shape, a spring washer shape, etc. It is also possible to make it a separate body.

  In the trigger sprayer 100 according to the present embodiment, the spring portion 6 of the second member 60 has a meandering shape, but 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 cover portion 9 includes the protruding portion 9b protruding rearward, but it is not always necessary.

  The trigger type sprayer of the present invention is suitably used as a device for discharging a liquid in a container by pulling a trigger. According to the trigger type sprayer of the present invention, the assembly is easy and the liquid discharge property is excellent.

DESCRIPTION OF SYMBOLS 1 ... Main-body part 1a ... Pivoting part 1b ... 1st engaging part 1c ... 2nd engaging part 2 ... Cap part 3 ... Cylinder part 3a ... Auxiliary cylinder part DESCRIPTION OF SYMBOLS 4 ... Trigger part 4a ... Elastic board 6 ... Spring part 7a ... F valve 7b ... S valve 8 ... Tube part 9 ... Cover part 9a ... Engaged part 9b: Protruding part 13 ... Piston part 13a ... Auxiliary piston part 14 ... Spinner part 15 ... Nozzle part 15a ... Nozzle port part 23a ... Screwing part 23b ... Medium Abdominal part 23c ... buttocks 50 ... first member 60 ... second member 100 ... trigger type sprayer R1 ... first flow path R2 ... second flow path S1 ... air path X ... container

Claims (6)

A cap that can be attached to the container;
A main body having a first flow path that is engaged with the cap and through which a liquid can flow;
A cylindrical cylinder communicating with the first flow path;
An F valve which is accommodated in the cylinder part and opens and closes the flow path of the liquid leading from the first flow path to the cylinder part;
A piston part that is slidable in the cylinder part and has a second flow path in which the liquid can flow;
A trigger part that slides the piston part back and forth;
An S valve which is accommodated in the piston part and opens and closes the liquid flow path leading from the cylinder part to the second flow path;
A spinner connected to the S valve via a spring;
A nozzle part to which the spinner part is attached;
A cover portion covering the main body portion;
With
A trigger type sprayer in which the cylinder part, the F valve, the piston part, the S valve, the spinner part and the nozzle part are arranged in a straight line.   The trigger type sprayer according to claim 1, wherein the cylinder portion has a diameter larger than that of the first flow path and the second flow path, and a liquid is stored therein.   The trigger type sprayer according to claim 1 or 2, wherein the trigger portion is pivotally attached to the main body portion so as to be rotatable.   The trigger type sprayer according to any one of claims 1 to 3, wherein the main body portion and the cylinder portion are integrated.   The trigger type sprayer according to any one of claims 1 to 4, wherein the S valve, the spring portion, and the spinner portion are integrated.   The trigger type sprayer according to any one of claims 1 to 5, wherein the cover portion is engaged with the main body portion and includes a protruding portion protruding rearward.

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