JP2022182549A - Trigger type liquid sprayer - Google Patents

Abstract

To provide a trigger type liquid sprayer which achieves reduction of the number of components and improvement of producibility.SOLUTION: A trigger type liquid sprayer 1 according to one aspect of the invention includes: a sprayer body 10; and a nozzle member 11. The sprayer body 10 includes: a passage member 15 having a vertical supply cylinder part 20 extending in a vertical direction and a pump part 22 which sends a liquid toward a jet hole 11a through the vertical supply cylinder part 20; and a trigger part 51 which is provided so as to be movable in an anteroposterior direction in front of the vertical supply cylinder part 20 and causes the pump part 22 to operate. At one of the trigger part 51 and the passage member 15, a biasing part 52a formed by a material softer than that of the one of the members is integrally fastened. The biasing part 52a is disposed between the one member and the other member of the trigger part 51 and the passage member 15 and biases the trigger part 51 forward.SELECTED DRAWING: Figure 1

Description

The present invention relates to trigger-type liquid ejectors.

The trigger-type liquid ejector includes a vertically extending vertical supply cylinder portion, an injection cylinder portion extending forward from the upper end of the vertical supply cylinder portion, a nozzle member having an ejection hole disposed in front of the injection cylinder portion, It has a trigger part that can move back and forth in front of the vertical supply tube part, and a pump part that sends out liquid toward the ejection hole as the trigger part moves back and forth (see, for example, Patent Document 1 below). . In the configuration of Patent Document 1 below, the trigger portion is biased forward via a biasing member interposed between the trigger portion and the ejection cylinder portion.

Japanese Unexamined Patent Application Publication No. 2020-82042

However, in the conventional trigger-type liquid ejector, it is difficult to reduce the number of parts because it is necessary to prepare an urging member separately from the ejection cylinder portion and the trigger portion.
In addition, in the process of assembling the trigger type liquid ejector, in order to interpose the biasing member between the ejection tube portion and the trigger portion, it is necessary to assemble the vertical supply tube portion and the biasing member, and the trigger portion and the biasing member It is necessary to assemble between Therefore, there is still room for improvement in terms of setting properties of the biasing member, and it has been difficult to improve manufacturing efficiency.

The present invention provides a trigger-type liquid ejector capable of reducing the number of parts and improving manufacturing efficiency.

In order to solve the above problems, the present disclosure employs the following aspects.
A trigger-type liquid ejector according to an aspect of the present disclosure includes an ejector main body attached to a container body containing a liquid, and an ejection hole attached to a front end portion of the ejector main body and ejecting the liquid forward. and a flow path member having a vertical supply tube portion extending in the vertical direction and a pump portion for sending liquid toward the ejection hole through the vertical supply tube portion. and a trigger part provided movably in the front-rear direction in front of the vertical supply tube part to operate the pump part, wherein one of the trigger part and the channel member includes the one A biasing portion formed of a softer material than the member is integrally fixed, and the biasing portion is interposed between the other member of the trigger portion and the flow path member to press the trigger portion. Force forward.

According to this aspect, the number of parts can be reduced by integrating the one member and the biasing portion in advance.
Further, in the process of assembling the trigger type liquid ejector, the biasing part can be interposed between the trigger part and the channel member simply by setting the biasing part on the other member. Therefore, compared to the case where the biasing portion is attached to each of the trigger portion and the flow path member, the setting property can be improved. As a result, it is possible to improve the manufacturing efficiency.

In the trigger-type liquid ejector of the aspect described above, it is preferable that the biasing portion is fixed to the trigger portion and pressed against the flow path member as the trigger portion moves rearward.
According to this aspect, compared with the case where the urging portion is fixed to the channel member including the vertical supply tube portion, the pump portion, and the like, it is easier to improve the degree of freedom in design.

In the trigger-type liquid ejector of the aspect described above, the trigger section is formed with an accommodating section that opens toward the rear, and the biasing section includes an embedded section embedded in the accommodating section and an urging section extending backward from the embedded section. and a contact portion that contacts the other member.
According to this aspect, it becomes easy to ensure the fixing strength between the trigger portion and the biasing portion by the embedded portion. Therefore, it is possible to prevent the urging portion from coming off or being damaged, thereby ensuring the reliability of the trigger type liquid ejector.

In the trigger-type liquid ejector of the aspect described above, it is preferable that a non-slip portion made of the same material as the biasing portion is provided on the front surface of the trigger portion.
According to this aspect, the operability can be improved by operating the trigger portion via the non-slip portion in ejecting operation of the trigger type liquid ejector.

In the trigger-type liquid ejector of the aspect described above, it is preferable to include a connecting portion that penetrates the trigger portion in the front-rear direction and integrally connects the biasing portion and the anti-slip portion.
According to this aspect, by integrally connecting the urging portion and the anti-slip portion, it becomes easier to secure the fixing strength between the urging portion and the anti-slip portion.

According to the aspect of the present invention, it is possible to reduce the number of parts and improve manufacturing efficiency.

1 is a longitudinal sectional view of a trigger type liquid ejector according to an embodiment; FIG. 1 is a front view of a trigger type liquid ejector according to an embodiment; FIG. FIG. 4 is an operation explanatory diagram of the trigger type liquid ejector according to the embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the embodiments and modifications described below, the same reference numerals may be assigned to corresponding configurations, and descriptions thereof may be omitted.

As shown in FIG. 1, a trigger-type liquid ejector 1 of this embodiment is capable of ejecting liquid contained in a container body A. As shown in FIG. A trigger type liquid ejector 1 includes an ejector body 10 , a nozzle member 11 and a cover 13 .
In addition, each component of the trigger type liquid ejector 1 is a molded product using a synthetic resin such as an olefin resin unless otherwise specified.

The ejector body 10 includes a channel member (the other member) 15 having a vertical supply tube portion 20 , a mounting cap 16 , a pipe 17 and a trigger module 18 .

Hereinafter, the direction (axial direction) along the axis O1 of the vertical supply tube portion 20 is defined as the vertical direction, the bottom (not shown) side of the container body A is defined as the lower side, and the opposite side is defined as the upper side. A direction that intersects the axis O1 when viewed from above and below is defined as a radial direction. The direction in which the vertical supply tube portion 20 and the nozzle member 11 are aligned in the radial direction is defined as the front-rear direction. In the front-rear direction, the nozzle member 11 side with respect to the vertical supply tube portion 20 is the front side, and the opposite side is the rear side. Moreover, let the direction orthogonal to the front-back direction seen from an up-down direction among radial directions be a left-right direction.

The flow channel member 15 is a portion through which the liquid sucked up from the container body A through the pipe 17 flows toward the nozzle member 11 . The channel member 15 includes a vertical supply tube portion 20 , a horizontal supply tube portion 21 and a pump portion 22 .
The vertical supply tubular portion 20 sucks up the liquid in the container body A through the mouth portion A1 of the container body A. As shown in FIG. The vertical supply tube portion 20 is formed in a multi-stage tube shape in which the diameter of the vertical supply tube portion 20 decreases with increasing position. Specifically, the vertical supply tube portion 20 includes a small diameter portion 20a positioned above, and a large diameter portion 20c continuous below the small diameter portion 20a via a stepped portion 20b. In the illustrated example, the vertical supply tube portion 20 has a double tube structure including an outer tube and an inner tube disposed inside the outer tube.

The large-diameter portion 20c is provided with a flange portion 20d projecting radially outward.
A ball valve 28 is provided at an intermediate portion in the vertical direction within the small diameter portion 20a. The ball valve 28 contacts and separates from above a lower valve seat portion 20e that protrudes into the small diameter portion 20a. The ball valve 28 switches communication and disconnection between the inside of the container body A and the pump section 22 through the vertical supply cylinder section 20 in the small diameter section 20a. Specifically, the ball valve 28 allows liquid to flow from the container body A to the pump portion 22 through the vertical supply tube portion 20 in a state of being separated upward from the lower valve seat portion 20e. The ball valve 28 regulates the flow of liquid from the pump section 22 into the container body A through the vertical supply tube section 20 when seated on the lower valve seat section 20e.

A switching valve 29 is provided at the upper end portion (a portion located above the ball valve 28) within the small diameter portion 20a. The switching valve 29 is integrally formed of an elastically deformable material such as LDPE (low density polyethylene). The switching valve 29 is fitted in the small-diameter portion 20a so as to be movable upward in a downwardly biased state. The switching valve 29 contacts and separates from above an upper valve seat portion 20f that protrudes into the small diameter portion 20a. The switching valve 29 switches communication and disconnection between the pump portion 22 and the injection cylinder portion 31 through the vertical supply cylinder portion 20 in the small diameter portion 20a. Specifically, the switching valve 29 allows liquid to flow through the vertical supply tube portion 20 from the pump portion 22 to the horizontal supply tube portion 21 in a state of being separated upward from the upper valve seat portion 20f. The switching valve 29 regulates the flow of liquid through the vertical supply cylinder portion 20 from the horizontal supply cylinder portion 21 to the pump portion 22 in a state of being seated on the upper valve seat portion 20f.

A cylinder attachment tube 20g is provided in front of the small diameter portion 20a. 20 g of cylinder attachment cylinders are formed in the shape of a bottomed cylinder opened toward the front. A part of the lower end portion of the peripheral wall portion of the cylinder mounting tube 20g continues to the stepped portion 20b. In the peripheral wall portion of the cylinder mounting cylinder 20g, the upper end portion is connected to the horizontal supply cylinder portion 21 (the injection cylinder portion 31 described later) via the vertical rib 20h. The vertical rib 20h extends in the front-rear direction with the left-right direction as the thickness direction.

The horizontal supply tube portion 21 is a portion through which the liquid that has passed through the vertical supply tube portion 20 flows toward the nozzle member 11 . The horizontal supply tube portion 21 extends straight forward from the upper end portion of the vertical supply tube portion 20 . The horizontal supply tube portion 21 includes an injection tube portion 31 and a relay member 32 .
The injection cylinder portion 31 is formed integrally with the vertical supply cylinder portion 20 (outer cylinder portion). The injection cylinder portion 31 extends forward from a portion of the upper end portion of the vertical supply cylinder portion 20 located above the upper valve seat portion 20f.
The relay member 32 connects between the injection cylinder portion 31 and the nozzle member 11 . The relay member 32 is attached to the injection cylinder portion 31 from the front.

The pump section 22 operates (storing and pumping the liquid in the container body A) according to the movement of the trigger module 18 . The pump section 22 includes a cylinder 34 and a piston 35 .
The cylinder 34 is formed in a bottomed cylindrical shape that opens forward. The cylinder 34 is fitted into the cylinder mounting cylinder 20g from the front. A positioning piece 34b is connected to an upper end portion of a cylinder peripheral wall 34a (hereinafter referred to as a cylinder peripheral wall 34a) of the cylinder 34. As shown in FIG.

The positioning piece 34b is formed in an L shape when viewed from the side. The positioning piece 34b includes an upwardly extending piece 38 extending upward from the front edge of the cylinder peripheral wall 34a and an inserting piece 39 extending rearward from the upper end of the upwardly extending piece 38 . The upwardly extending piece 38 covers the front opening edge of the cylinder mounting tube 20g directly below the injection tube portion 31 from the front. The insertion piece 39 is inserted from the front into the gap between the cylinder mounting tube 20g and the injection tube portion 31. As shown in FIG.

The piston 35 is provided movably back and forth with respect to the cylinder 34 . The piston 35 is formed in a bottomed cylindrical shape that opens rearward. The piston 35 slides on the inner peripheral surface of the cylinder 34 (cylinder peripheral wall 34 a ) as it moves back and forth with respect to the cylinder 34 . The inside of the cylinder 34 is decompressed as the piston 35 moves forward, and is pressurized as the piston 35 moves backward.

The inside of the cylinder 34 communicates with the inside of the vertical supply tubular portion 20 through a communication passage 36 . The communication passage 36 is formed between the bottom wall portion 34c of the cylinder 34 and a portion of the small diameter portion 20a positioned between the ball valve 28 and the switching valve 29. As shown in FIG.

The mounting cap 16 is formed in a tubular shape extending in the vertical direction. The mounting cap 16 is detachably fastened to the opening A1 of the container body A with the flange 20d sandwiched between it and the upper opening edge of the opening A1. The mounting cap 16 and the opening A1 may be fixed by a method other than screwing (for example, fitting).

The pipe 17 is inserted into the vertical supply tubular portion 20 through the inner side of the large-diameter portion 20c and is fitted into the small-diameter portion 20a from below. The pipe 17 extends downward inside the container body A when the trigger type liquid ejector 1 is attached to the container body A. As shown in FIG.

The nozzle member 11 is attached to the relay member 32 from the front. The nozzle member 11 is formed in a capped tubular shape that opens rearward. A top wall portion (front wall portion) of the nozzle member 11 is formed with a jet hole 11a extending in the front-rear direction. The ejection hole 11 a communicates with the injection cylinder portion 31 through the inside of the nozzle member 11 and the inside of the relay member 32 .

The cover 13 surrounds a portion of the ejector body 10 located above the mounting cap 16 from above, rear and sides. The cover 13 is attached to the ejector body 10 by inserting the ejector body 10 toward the front.

The trigger module 18 is provided in front of the vertical supply tube portion 20 so as to be movable backward in a forward biased state. The trigger module 18 includes a trigger portion (one member) 51 and a soft material portion 52 .

The trigger part 51 is provided in front of the pump part 22 so as to be movable back and forth. Specifically, the trigger portion 51 includes a trigger body 51a and a support piece 51b.
The trigger body 51a has a front wall portion 71 and a peripheral wall portion 72, and is formed in a shallow box shape that is open rearward. The trigger body 51a extends in front of the pump portion 22 while being inclined forward as it goes downward from above. A connecting tube 73 extending rearward is provided at the upper end portion of the front wall portion 71 . A front end portion of the connecting tube 73 is open at the front surface of the front wall portion 71 . On the other hand, the rear end portion of the connecting tube 73 reaches a position equivalent to the rear end edge of the peripheral wall portion 72 . A connecting shaft 73a is provided at the rear end of the connecting tube 73 and protrudes in the left-right direction so as to face the inside of the connecting tube 73 . The connecting shaft 73 a is connected to the front end of the piston 35 . Accordingly, the piston 35 moves rearwardly with respect to the cylinder 34 as the trigger module 18 moves rearwardly.

A portion of the trigger body 51a located above the connecting tube 73 constitutes a housing portion 74. As shown in FIG. The housing portion 74 is a portion surrounded by the front wall portion 71, the peripheral wall portion 72, and the connecting tube 73, and is open rearward. A communicating hole 75 is formed in a portion of the front wall portion 71 that constitutes the peripheral wall portion 72 . The communication hole 75 penetrates the front wall portion 71 in the front-rear direction.

A pair of left and right support pieces 51b are provided at the upper end portion of the trigger body 51a. The support pieces 51 b extend upward on both sides in the left-right direction with respect to the relay member 32 . An upper end portion of each support piece 51b is supported by the relay member 32 so as to be rotatable around an axis along the left-right direction.

The soft material portion 52 is integrally formed with the trigger portion 51 by insert molding or the like. The soft material portion 52 is made of a material that is softer than the material of the trigger portion 51 (for example, PP), has a higher elastic modulus than the trigger portion 51, and a higher coefficient of friction than the trigger portion 51. ing. Such materials include olefinic elastomers and the like. By adopting the olefinic elastomer as the soft material in this way, the entire trigger type liquid ejector 1 can be made of the olefinic resin, and the environmental load can be reduced.

In the soft material portion 52, the biasing portion 52a, the non-slip portion 52b, and the connecting portion 52c are integrally formed of the same material.
The biasing portion 52a is a block-shaped portion of the soft material portion 52 provided at the upper end portion of the trigger body 51a. The biasing portion 52a biases the trigger portion 51 forward. Specifically, the biasing portion 52 a includes an embedded portion 81 and a contact portion 82 .

The embedded portion 81 is a portion of the urging portion 52a that is embedded in the housing portion 74. As shown in FIG. The embedded portion 81 is fixed to the inner surface of the housing portion 74 and functions as a base for the biasing portion 52a.
The contact portion 82 protrudes rearward from the embedded portion 81 . The contact portion 82 is a portion that is interposed between the trigger portion 51 and the flow path member 15 and elastically deformed (compressively deformed) as the trigger portion 51 moves backward. The contact portion 82 is formed in a rectangular shape when viewed from the side. The upper surface 82a of the contact portion 82 approaches or contacts the lower surface of the relay member 32 from below. The upper surface 82a is formed as a flat surface extending in the front-rear direction in a side view.
The rear surface 82b of the contact portion 82 contacts or approaches the front surface of the upwardly extending piece 38 from the front. The rear surface 82b is formed as a flat surface extending vertically in a side view. The upper surface 82a and the rear surface 82b may be curved surfaces or the like.

The anti-slip portion 52b is provided at a portion of the front wall portion 71 of the trigger body 51a located below the connecting tube 73. As shown in FIG. Specifically, the front wall portion 71 of the trigger body 51a is formed with a concave portion 71a recessed rearward. The concave portion 71 a extends in the front-rear direction following the front surface of the front wall portion 71 . The non-slip portion 52b is exposed on the front surface of the front wall portion 71 while being at least partially embedded in the recess 71a. The anti-slip portion 52b may be flush with the front surface of the front wall portion 71, or may bulge or recess with respect to the front surface of the front wall portion 71. As shown in FIG.

In the illustrated example, a protrusion 52d protrudes forward from the anti-slip portion 52b. The protrusions 52d extend in the left-right direction and are formed in plurality at intervals in the up-down direction. A plurality of protrusions 52d may be formed in an island shape or the like.

The connecting portion 52c integrally connects the biasing portion 52a and the anti-slip portion 52b. Specifically, the connection portion 52 c includes a through portion 85 and a routing portion 86 .
The through portion 85 is embedded in the communication hole 75 . The rear end of the penetrating portion 85 continues to the front end of the embedded portion 81 within the accommodating portion 74 .

The routing portion 86 connects the through portion 85 and the anti-slip portion 52b through a connection groove 71b provided in the trigger body 51a. The connection grooves 71b extend vertically in portions of the front wall portion 71 located on both sides of the connecting tube 73 in the left-right direction. The connection groove 71 b is recessed rearward with respect to the front surface of the front wall portion 71 . The lower ends of the connection grooves 71b communicate with the upper ends of the recesses 71a. On the other hand, the upper ends of the connection grooves 71b communicate with the front ends of the through portions 85, respectively. The routing portion 86 extends vertically with at least a portion thereof embedded in the connection groove 71b. Therefore, the routing portion 86 is connected to the urging portion 52a via the through portion 85 at the upper end edge, and is connected to the anti-slip portion 52b at the lower end edge.

The trigger type liquid ejector 1 is manufactured through a module molding process and an assembly process.
In the module molding process, the trigger part 51 is insert-molded with the soft material part 52 as an insert product. As a result, the trigger module 18 is formed with the trigger portion 51 and the soft material portion 52 fixed together.

The assembly process includes a channel member setting process, a trigger setting process, a nozzle setting process, and the like.
In the channel member setting process, the vertical supply cylinder portion 20 , the horizontal supply cylinder portion 21 and the pump portion 22 are assembled together as the channel member 15 , and the mounting cap 16 and the pipe 17 are assembled to the channel member 15 .

Subsequently, in the trigger setting step, the trigger module 18 is assembled to the flow channel member 15 . Specifically, the support piece 51 b is connected to the relay member 32 and the connecting shaft 73 a is connected to the front end of the piston 35 . Then, the trigger module 18 is assembled to the flow path member 15 with the upper surface 82 a of the contact portion 82 facing the lower surface of the relay member 32 and the rear surface 82 b facing the front surface of the upwardly extending piece 38 .

In the nozzle setting process, the nozzle member 11 is attached to the front end portion of the relay member 32 .
With the above, the trigger type liquid ejector 1 is completed.

Next, the case where the trigger type liquid ejector 1 described above is attached to the container body A and used will be described.
By operating the trigger module 18 a plurality of times, each part of the trigger type liquid ejector 1 is filled with liquid, and the liquid can be sucked up into the vertical supply cylinder part 20 .

First, as shown in FIGS. 1 and 3, when the trigger module 18 is pulled rearward through the trigger body 51a, the trigger portion 51 rotates around the support piece 51b, thereby moving the trigger portion 51 rearward. do. Then, the biasing portion 52a (contact portion 82) is sandwiched between the trigger portion 51 and the flow path member 15, and the contact portion 82 is compressed and deformed. Specifically, the contact portion 82 is subjected to a vertical compressive load acting between the upper surface 82a and the relay member 32, a longitudinal compressive load acting between the rear surface 82b and the upwardly extending piece 38, It compresses and deforms in the vertical direction and the front-back direction. As a result, the trigger portion 51 is applied with a forward biasing force as it moves backward.

When the trigger portion 51 moves rearward, the piston 35 moves rearward with respect to the cylinder 34 . Then, the inside of the cylinder 34 is pressurized by the piston 35 sliding on the inner peripheral surface of the cylinder peripheral wall 34a. As a result, the liquid in the cylinder 34 is supplied through the communication passage 36 into the vertical supply tubular portion 20 (small diameter portion 20a). Then, the ball valve 28 is pressed toward the lower valve seat portion 20e by the pressure of the liquid supplied to the small diameter portion 20a, and communication between the inside of the container body A and the inside of the vertical supply tube portion 20 is blocked. As a result, the liquid in the small-diameter portion 20a flows through the vertical supply tube portion 20 upward.

As the liquid flows into the small diameter portion 20a, the space surrounded by the ball valve 28 and the switching valve 29 in the small diameter portion 20a is pressurized. Then, the switching valve 29 is pushed upward, thereby separating the switching valve 29 from the upper valve seat portion 20f. As a result, the inside of the small-diameter portion 20 a and the inside of the injection cylinder portion 31 are communicated with each other, so that the liquid inside the small-diameter portion 20 a flows toward the injection cylinder portion 31 . The liquid flowing through the ejection cylinder portion 31 reaches the nozzle member 11 through the relay member 32 and is ejected through the ejection holes 11a.

When the operation of the trigger portion 51 is released, the restoring force of the contact portion 82 causes the trigger portion 51 to move forward. Along with this, the piston 35 is restored forward relative to the cylinder 34, and the pressure inside the piston 35 is reduced. As a result, the ball valve 28 is lifted from the lower valve seat portion 20e, and communicates with the inside of the container body A through the cylinder 34 and the inside of the small diameter portion 20a. On the other hand, the switching valve 29 remains seated on the upper valve seat portion 20f, thereby blocking communication between the inside of the cylinder 34 and the inside of the injection cylinder portion 31 through the inside of the small diameter portion 20a. As a result, the liquid in the container body A is sucked up into the vertical supply tubular portion 20 . The liquid that has flowed into the vertical supply tubular portion 20 is introduced into the cylinder 34 through the communication passage 36, thereby preparing for the next ejection operation.

As described above, in the present embodiment, the biasing portion 52a that is interposed between the trigger portion 51 and the flow path member 15 and biases the trigger portion 51 forward is fixed to the trigger portion 51 integrally. It was configured as follows.
According to this configuration, the number of parts can be reduced by integrating the trigger portion 51 and the biasing portion 52a in advance.
In addition, in the process of assembling the trigger type liquid ejector 1 , simply by setting the urging portion 52 a to the channel member 15 (facing each other in this embodiment), the force between the trigger portion 51 and the channel member 15 can be adjusted. A biasing portion 52a can be interposed. Therefore, compared to the case where the urging portion 52a is assembled to each of the trigger portion 51 and the flow path member 15, the setting property can be improved. As a result, it is possible to improve the manufacturing efficiency.

In this embodiment, the urging portion 52a is fixed to the trigger portion 51. As shown in FIG.
According to this configuration, compared with the case where the urging portion 52a is fixed to the channel member 15 including the vertical supply cylinder portion 20, the pump portion 22, and the like, it is easier to improve the degree of freedom in design.

In this embodiment, the urging portion 52 a is configured to include the embedded portion 81 embedded in the accommodating portion 74 formed in the trigger portion 51 .
According to this configuration, the embedding portion 81 facilitates ensuring the fixing strength between the trigger portion 51 and the biasing portion 52a. Therefore, it is possible to prevent the urging portion 52a from coming off or being damaged, thereby ensuring the reliability of the trigger type liquid ejector 1. FIG.

In this embodiment, the anti-slip portion 52b made of the same material as the biasing portion 52a is provided on the front surface of the trigger portion 51. As shown in FIG.
According to this configuration, the operability can be improved by operating the trigger portion 51 via the anti-slip portion 52b when operating the trigger type liquid ejector 1 to eject.

In the present embodiment, a connection portion 52c that integrally connects the biasing portion 52a and the anti-slip portion 52b is provided.
According to this configuration, by integrally connecting the urging portion 52a and the anti-slip portion 52b, it becomes easier to secure the fixing strength between the urging portion 52a and the anti-slip portion 52b.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes in configuration are possible without departing from the scope of the present invention. The present invention is not limited by the foregoing description, but only by the appended claims.
Although the configuration in which the trigger portion 51 is rotatable has been described in the above-described embodiment, the configuration is not limited to this configuration. The trigger part 51 may be configured to be slidable as long as it is configured to be movable in the front-rear direction.
Although the configuration in which the soft material portion 52 is formed by insert molding has been described in the above-described embodiment, the configuration is not limited to this. The soft material portion 52 may be fixed to the trigger portion 51 by adhesion or the like as long as it is integrally fixed to the trigger portion 51 before the process of assembling the trigger type liquid ejector 1 .

In the above-described embodiment, the configuration in which the biasing portion 52a abuts on the positioning piece 34b and the relay member 32 has been described, but the configuration is not limited to this. The urging portion 52 a may be configured to contact any position of the flow path member 15 .
In the embodiment described above, the configuration in which the biasing portion 52a is fixed to the trigger portion 51 as one member has been described, but the configuration is not limited to this. The urging portion may be fixed to the channel member 15 (vertical supply cylinder portion 20, horizontal supply cylinder portion 21, pump portion 22, etc.) as one member.
In the above-described embodiment, an example in which the biasing portion 52a constitutes the soft material portion 52 together with the non-slip portion 52b has been described, but the configuration is not limited to this. The soft material portion 52 may include at least the biasing portion 52a. Further, the urging portion 52a is not limited to a block shape, and various shapes such as a plate shape, a wave shape, and an annular shape can be adopted.
In the above-described embodiment, the configuration in which the soft material portion 52 is formed of the olefinic elastomer has been described as an example, but the configuration is not limited to this. The soft material portion 52 may be made of, for example, elastomer, nitrile rubber, butyl rubber, silicone rubber, or the like.

In addition, it is possible to appropriately replace the components in the above-described embodiment with well-known components without departing from the gist of the present invention, and the above-described modifications may be combined as appropriate.

1: Trigger-type liquid ejector 10: Ejector main body 11: Nozzle member 11a: Ejection hole 15: Flow path member (other member, one member)
20: Vertical supply tube portion 22: Pump portion 51: Trigger portion (one member, the other member)
52a: biasing portion 52b: non-slip portion 52c: connecting portion 74: accommodating portion 81: embedded portion 82: contact portion A: container body

Claims (5)

an ejector main body attached to a container body containing a liquid;
a nozzle member attached to the front end of the ejector body and formed with an ejection hole for ejecting liquid forward;
The ejector body is
a channel member having a vertical supply cylinder portion extending in the vertical direction and a pump portion for sending liquid toward the ejection hole through the vertical supply cylinder portion;
a trigger part provided movably in the front-rear direction in front of the vertical supply tube part and operating the pump part,
An urging portion made of a softer material than the one member is integrally fixed to one of the trigger portion and the flow path member,
The trigger-type liquid ejector, wherein the urging portion is interposed between the other member of the trigger portion and the channel member and urges the trigger portion forward. 2. The trigger-type liquid ejector according to claim 1, wherein the biasing portion is fixed to the trigger portion and pressed against the flow path member as the trigger portion moves rearward. The trigger part is formed with an accommodating part that opens toward the rear,
The urging portion is
an embedded portion embedded in the containing portion;
3. The trigger-type liquid ejector according to claim 2, further comprising a contact portion that continues rearward from the embedded portion and contacts the other member. 4. The trigger-type liquid ejector according to claim 2, wherein a non-slip portion made of the same material as the biasing portion is provided on the front surface of the trigger portion. 5. The trigger-type liquid ejector according to claim 4, further comprising a connection portion that penetrates the trigger portion in the front-rear direction and integrally connects the biasing portion and the anti-slip portion.

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