JP5624912B2 - Trigger type liquid ejector - Google Patents

Description

  The present invention relates to a trigger type liquid ejector.

  Conventionally, a trigger type liquid ejector as shown in Patent Document 1 below is known. The trigger type liquid ejector includes a suction tube portion extending in the vertical direction, an injection tube portion extending forward from the suction tube portion, and extending downward from the injection tube portion. And a trigger disposed so as to be swingable in the front-rear direction, and an elastic spring plate for biasing the trigger forward.

JP 2000-70782 A

  However, the conventional trigger type liquid ejector has room for improvement in reducing the number of parts.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the trigger type | mold liquid ejector which can reduce a number of parts.

In order to solve the above problems, the present invention proposes the following means.
A trigger type liquid ejector according to the present invention includes a suction tube portion extending in the vertical direction, an injection tube portion extending forward from the suction tube portion, and downward from the injection tube portion. A trigger portion that is disposed so as to be swingable in the front-rear direction, and an elastic plate portion that biases the trigger portion that is swung rearward forward. A trigger type liquid ejector that, when swung backward, ejects liquid through the inside of each of the suction cylinder part and the injection cylinder part and through a nozzle hole provided at the front end of the injection cylinder part; The trigger portion is disposed so as to be swingable in the front-rear direction around the first hinge portion, and one end portion of the elastic plate portion is provided with a second hinge portion located behind the first hinge portion. coupled to said trigger portion through the upper surface of the injection tube portion, the tri And an attachment member in which the elastic plate part is connected via the second hinge part and the trigger part is positioned below the injection cylinder part. And a pair of connecting portions that are respectively provided upright from both ends in the left-right direction of the operating portion, and the injection cylinder portion is disposed between the two operating portions. The elastic plate portion is connected to the member separately via the first hinge portion, and the other end portion of the elastic plate portion opposite to the one end portion is located below the one end portion, and is a side surface viewed from the left-right direction. The other end portion of the elastic plate portion is locked from below and from the front by a locked portion formed on the trigger portion. is, the trigger part and the elastic plate portion, Serial first hinge portion, characterized in that it is formed integrally via the second hinge portion and the mounting member.

  In this invention, when the trigger portion is pulled backward and swung around the first hinge portion, the other end portion of the elastic plate portion is pushed backward by the locked portion of the trigger portion, so that the elastic plate portion is The trigger part is biased forward. Therefore, when the pulling of the trigger portion is released, the trigger portion can be swung forward and restored by the urging force acting on the trigger portion from the elastic plate portion.

  Here, since the one end part of the elastic plate part is connected to the trigger part via the second hinge part, it becomes possible to integrally form the trigger part and the elastic plate part, thereby reducing the number of parts. can do.

In addition, since the trigger part and the elastic plate part are rotatably arranged around each hinge part, after forming the serial body in which the trigger part and the elastic plate part are connected in a straight line, By rotating the trigger portion and the elastic plate portion around each hinge portion, the trigger portion extends downward from the injection cylinder portion, and the elastic plate portion is elastically deformed to be the other end portion of the elastic plate portion. Can be locked to the locked portion of the trigger portion.
As described above, after forming the serial body in a straight line, the shape of the serial body can be changed by a simple operation of rotating the trigger portion and the elastic plate portion around each hinge portion. Therefore, it becomes possible to form the shape of the serial body in a straight line so that it can be easily formed as described above, improving the moldability of the serial body, for example, the trigger type liquid It is possible to simplify the mold for forming the ejector and simplify the manufacture of the ejector.

Furthermore , since each of the pair of connecting portions is individually connected to the attachment member via the first hinge portion, for example, when the trigger portion is swung by pulling the operation portion backward, the trigger portion Even if an external force directed downward is applied, the external force can be received by the injection cylinder portion via the first hinge portion and the attachment member. Thereby, it becomes possible to rock | fluctuate a trigger part stably and operativity can be improved.
In addition, since the operation part is connected to the mounting member via a pair of left and right connection parts, it is possible to suppress the rattling of the trigger part in the left-right direction when the trigger part is swung, and the operability is improved. It can be improved further.

  Further, a pair of the elastic plate portions may be disposed so as to sandwich the injection cylinder portion in the left-right direction.

  In this case, since a pair of elastic plate portions are arranged so as to sandwich the injection cylinder portion in the left-right direction, it is possible to further suppress the trigger portion from rattling in the left-right direction when the trigger portion is swung.

  According to the trigger type liquid ejector according to the present invention, the number of parts can be reduced.

It is a longitudinal cross-sectional view of the trigger type liquid ejector which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the serial body which comprises the trigger type liquid ejector shown in FIG. It is a top view which shows the state which made the serial body shown in FIG. 2 the shape at the time of shaping | molding. It is a longitudinal cross-sectional view which shows the state which made the serial body shown in FIG. 2 the shape at the time of shaping | molding.

Hereinafter, a trigger type liquid ejector according to an embodiment of the present invention will be described with reference to the drawings.
The trigger type liquid ejector 10 includes an ejector body 11 having a suction cylinder portion 13 extending in the vertical direction A, and an injection cylinder portion 14 extending forward from the suction cylinder portion 13, and an injection And a nozzle 12 provided at the front end of the cylindrical portion 14.

  The suction cylinder portion 13 includes a top cylinder-shaped outer cylinder 18 and an inner cylinder 19 fitted in the outer cylinder 18. Each of the outer cylinder 18 and the inner cylinder 19 is formed in a two-stage cylinder shape in which large-diameter portions 18a and 19a and small-diameter portions 18b and 19b are connected in this order from the bottom to the top.

  Here, the central axes of the small diameter portions 18b and 19b of the outer cylinder 18 and the inner cylinder 19 are located on a common axis. Hereinafter, this common axis is referred to as an axis O, and a direction along the axis O is referred to as a vertical direction. A direction in which a container body (not shown) is attached to the trigger type liquid ejector 10 along the vertical direction is referred to as a lower side, and the opposite direction is referred to as an upper side.

  A mounting cap 20 that is mounted on the mouth of the container body is attached to each of the large diameter portions 18a and 19a. In addition, the small diameter portion 19b of the inner cylinder 19 is fitted with a pipe 21 whose lower end opening is located at the bottom of the container body with the mounting cap 20 attached to the mouth of the container body. The inner cylinder 19 includes a flange portion 19c that connects the large diameter portion 19a and the small diameter portion 19b.

The injection cylinder part 14 is provided at the upper end of the suction cylinder part 13, and the inside of the injection cylinder part 14 communicates with the inside of the inner cylinder 19 in the suction cylinder part 13 via the discharge hole 22.
A nozzle fitting cylinder 25 is fitted to the front part of the injection cylinder part 14, and the nozzle 12 is fitted to the nozzle fitting cylinder 25. A nozzle hole (not shown) is opened in the front end surface of the nozzle 12.

  A center axis (not shown) of the injection cylinder portion 14 extends along an orthogonal plane orthogonal to the axis O. Hereinafter, the direction along the central axis of the injection cylinder part 14 is referred to as the front-rear direction, the direction in which the injection cylinder part 14 is located with respect to the axis O along the front-rear direction is referred to as the front side, and the opposite direction is the rear side. That's it. Furthermore, the direction orthogonal to both the up-down direction and the front-rear direction is referred to as the left-right direction.

Here, a discharge valve 23 formed so as to be elastically deformable in the vertical direction A is disposed at an upper end portion in the inner tube 19 of the suction tube portion 13. The discharge valve 23 communicates and blocks the discharge hole 22 from a portion located below the discharge valve 23 in the inner cylinder 19.
Further, a tapered cylindrical portion 19e that gradually decreases in diameter as it goes downward is projected from a portion of the inner peripheral surface of the inner cylinder 19 that is located below the discharge valve 23 and above the upper end of the pipe 21. A spherical suction valve 24 is disposed in the tapered cylindrical portion 19e, and the suction valve 24 is detachably seated on the inner peripheral surface of the tapered cylindrical portion 19e. With this suction valve 24, the portion located between the discharge valve 23 and the suction valve 24 in the inner cylinder 19 and the inside of the pipe 21 can be communicated and blocked.

  Further, in the outer cylinder 18 of the suction cylinder part 13, a cylinder storage cylinder part 27 that opens toward the front projects from a portion located below the injection cylinder part 14. The lower wall of the cylinder housing cylinder portion 27 closes the front portion of the upper end opening of the large diameter portion 18a of the outer cylinder 18, and faces the flange portion 19c of the inner cylinder 19 from above. .

  Further, a hanging plate 28 is provided between the cylinder housing cylinder part 27 and the injection cylinder part 14. The drooping plate 28 connects the upper surface of the cylinder housing cylinder part 27 and the lower surface of the rear part of the injection cylinder part 14, and the rear end edge of the cylinder housing cylinder part 27 and the injection cylinder part on the outer peripheral surface of the outer cylinder 18. 14 is connected to a portion located between the two. Further, a fitting projection 29 projects from the rear end surface of the cylinder housing cylinder portion 27 toward the front.

  Here, the ejector body 11 has a trigger portion 15 extending downward from the injection tube portion 14 and arranged to be swingable in the front-rear direction B. The piston 16 that is moved, the cylinder 17 that is pressurized and depressurized as the piston 16 moves back and forth, and the elastic plate portion 26 that urges the trigger portion 15 that is swung rearward forward. And a cover body 30 that covers the suction tube portion 13 and the injection tube portion 14 is further provided.

The cover body 30 covers the suction tube portion 13 and the injection tube portion 14 from the upper side, the rear side, and both sides in the left-right direction C.
The cylinder 17 includes an outer cylinder portion 31 that opens toward the front, and a piston guide portion 32 that is disposed radially inside the outer cylinder portion 31 and extends toward the front. .

  The outer cylinder part 31 of the cylinder 17 is fitted in the cylinder storage cylinder part 27. In addition, the inner circumferential surface of the cylinder housing cylinder portion 27 and the outer circumferential surface of the outer cylinder portion 31 of the cylinder 17 are in airtight contact with both end portions in the front-rear direction B, and between these both end portions along the front-rear direction B. A gap is provided in a portion located between them to form a cylindrical space V. In addition, the outer cylinder portion 31 is formed with a first communication hole 31a that communicates the inside with the cylindrical space V.

  Here, a second communication hole 27 a that opens into the cylindrical space V is formed in the lower wall of the cylinder housing cylinder portion 27. Further, in the flange portion 19 c of the inner cylinder 19, each of the large-diameter portion 19 a of the inner cylinder 19 and the mounting cap 20 in the suction cylinder portion 13 is arranged at a portion facing the lower wall of the cylinder storage cylinder portion 27 in the vertical direction A. A third communication hole 19d that opens inward is formed.

  The piston guide part 32 is formed in a cylindrical shape whose front face is closed and opened rearward, and the fitting projection 29 of the cylinder housing cylinder part 27 is fitted inside the rear end part. Further, a through hole 33 a is formed in a portion located outside the piston guide portion 32 on the rear end surface of the outer cylinder portion 31. The through-hole 33a is opened in a portion located between the discharge valve 23 and the suction valve 24 inside the inner cylinder 19 of the suction cylinder portion 13 through a communication hole 33b formed in the suction cylinder portion 13. Yes.

  In addition, a clamping piece 34 that protrudes upward and extends rearward is provided at a portion located on the upper side of the front end edge of the outer cylindrical portion 31. The sandwiching piece 34 is formed with a notch that opens rearward and extends in the front-rear direction B, and the front end of the hanging plate 28 is sandwiched in the notch.

The piston 16 is provided at a rear end portion of the piston main body 35 having a cylindrical piston body 35 opened rearward and having a piston guide portion 32 inserted therein, and an outer peripheral surface of the piston 16. And a sliding cylinder portion 36 that slides back and forth on the inner peripheral surface of the portion 31.
The outer cylinder portion 31 and the piston guide portion 32 of the cylinder 17, and the piston main body portion 35 and the sliding cylinder portion 36 of the piston 16 are arranged on a common cylinder shaft (not shown) extending along the front-rear direction B.

The sliding cylinder 36 has an inner diameter equal to the inner diameter of the piston main body 35 and an outer diameter larger than the outer diameter of the piston main body 35, and is coupled to the rear end surface of the piston main body 35. The piston main body part 35 and the sliding cylinder part 36 are integrally formed.
The inner diameters of the piston main body part 35 and the sliding cylinder part 36 are larger than the outer diameter of the piston guide part 32, and the inner peripheral surface of the piston main body part 35 and the sliding cylinder part 36 and the outer peripheral surface of the piston guide part 32 are mutually different. It is separated.

Further, on the outer peripheral surface of the piston 16, the piston main body portion 35 is not in sliding contact with the inner peripheral surface of the outer cylindrical portion 31 in the cylinder 17, and only the sliding cylindrical portion 36 is in sliding contact.
Here, annular grooves 36b and 36c arranged coaxially with the cylinder shaft are respectively formed on the rear end surface and the front end surface of the sliding cylinder portion 36.

  Further, the outer peripheral surface of the sliding cylinder portion 36 gradually increases in diameter along the front-rear direction B from the central portion toward both ends. Of the outer peripheral portion defined by the outer peripheral surface of the sliding cylindrical portion 36 and the annular grooves 36b and 36c, the portions located at both ends in the front-rear direction B are elastically deformable in the radial direction. . And this sliding cylinder part 36 is comprised so that the inside of the outer cylinder part 31 can be slid back and forth in a liquid-tight state by pressing the both ends of the front-back direction B in an outer peripheral part against the inner peripheral surface of the outer cylinder part 31. Has been.

As shown in FIGS. 2 and 3, the trigger portion 15 includes a main plate member 41 whose front and back faces in the front-rear direction B and extends along the left-right direction C, and rearward from both side ends of the main plate member 41 in the left-right direction C. And a pair of side plate members 42 extending separately from each other.
The side plate member 42 extends over the entire length of the side edge in the left-right direction C of the main plate member 41, and the front and back surfaces of the side plate member 42 extend along the front-rear direction B.

The main plate member 41 is erected separately from the operation portion 43 positioned below the injection cylinder portion 14 and both ends of the operation portion 43 in the left-right direction C, and the pair of injection cylinder portions 14 are disposed therebetween. And a connecting portion 44.
In addition, an opening 45 that opens on both sides in the front-rear direction B is formed in an upper portion located on the upper side of the operation unit 43.

Here, as shown in FIG. 2, a cylindrical portion 46 that is arranged coaxially with the opening 45 protrudes rearward from the opening peripheral edge of the opening 45 in the operation portion 43.
A pair of shaft portions 48 project from the inner peripheral surface of the tubular portion 46 in the left-right direction C toward the inner side in the left-right direction C. As shown in FIG. 1, these shaft portions 48 are connected to the front end of the piston main body portion 35.

  The trigger portion 15 is attached to the injection cylinder portion 14 via an attachment member 49. The attachment member 49 is attached to the upper surface of the injection cylinder part 14, and in this embodiment, as shown in FIGS. 1 and 3, the fixed part 50 fixed on the injection cylinder part 14 and the fixed part 50 are fixed. And a pair of connecting pieces 51 projecting separately on both sides in the left-right direction C.

  As shown in FIG. 3, the top view of the fixed part 50 viewed from above is a rectangular shape that is long in the front-rear direction B, and the connecting piece 51 is located at the middle part of the fixed part 50 in the front-rear direction B. It is connected. The shape of the connecting piece 51 in a top view is a rectangular shape in which a pair of side portions extend in the left-right direction C, and these side portions are a front end edge and a rear end edge, respectively.

  As shown in FIGS. 2 and 3, the trigger portion 15 is connected to the attachment member 49 via the first hinge portion 52 so as to be swingable in the front-rear direction. The first hinge portion 52 is disposed along the front end edge of the connecting piece 51 and extends in the left-right direction C.

  A pair of elastic plate portions 26 are disposed so as to sandwich the injection cylinder portion 14 in the left-right direction C. The front and back surfaces of the elastic plate portion 26 extend in the left-right direction C, and one end portion 26 a of the elastic plate portion 26 is interposed via a second hinge portion 53 that is located behind the first hinge portion 52. It is connected to the trigger unit 15. As shown in FIG. 3, the elastic plate portion 26 is connected to the trigger portion 15 via the connecting piece 51 of the mounting member 49, and the second hinge portion 53 is arranged along the rear edge of the connecting piece 51. And extends in the left-right direction C.

  Further, as shown in FIG. 2, the elastic plate portion 26 has the other end portion 26b opposite to the one end portion 26a positioned below the one end portion 26a, and the side view as viewed from the left-right direction C is rearward. It is elastically deformed so as to curve in a convex shape. In the illustrated example, the other end portion 26b of the elastic plate portion 26 is positioned in front of the one end portion 26a. The other end 26b gradually extends upward from the rear to the front.

In the present embodiment, the other end portion 26 b of the elastic plate portion 26 is locked from below and from the front by the locked portion 54 formed in the trigger portion 15. The locked portion 54 includes the cylindrical portion 46 and an upper end portion 43 a of the operation portion 43 located above the opening 45 in the upper portion of the operation portion 43. The other end portion 26 b of the elastic plate portion 26 is locked from below by a portion positioned on the upper side of the cylindrical portion 46 and is locked from the front by the upper end portion 43 a of the operation portion 43.
As shown in FIG. 1, the upper end portion 43 a of the operation portion 43 is locked to the lower end of the nozzle fitting cylinder 25 from the rear. Thereby, the rocking | fluctuation to the front of the trigger part 15 is controlled.

  In the above configuration, for example, by pulling the operation portion 43 of the trigger portion 15 backward by hand, the trigger portion 15 is pulled backward to swing around the first hinge portion 52, and the piston 16 is moved relative to the cylinder 17. To move backward. Then, the liquid in the liquid chamber 38 between the piston 16 and the cylinder 17 is pressurized, and the pressurized liquid enters the suction cylinder portion 13 through the through hole 33a and the communication hole 33b. The discharge valve 23 is moved upward by this hydraulic pressure. Thereby, the liquid (contents) passes through the discharge hole 22, reaches the inside of the injection cylinder portion 14, and is ejected from the nozzle hole of the nozzle 12.

Here, when the trigger portion 15 is swung around the first hinge portion 52 as described above, the other end portion 26 b of the elastic plate portion 26 is pushed backward by the locked portion 54 of the trigger portion 15. Thus, the elastic plate portion 26 biases the trigger portion 15 toward the front.
Therefore, after that, for example, when the trigger portion 15 is released by releasing the operation portion 43 of the trigger portion 15 or the like, the trigger portion 15 is moved forward by the biasing force acting on the trigger portion 15 from the elastic plate portion 26. Swing toward and restore.

At this time, the piston 16 also moves forward with respect to the cylinder 17 following the swing of the trigger portion 15, and the pressure in the liquid chamber 38 becomes negative. Thereby, the liquid in the container body is sucked up from the pipe 21, opens the suction valve 24, and flows into the liquid chamber 38 through the tapered cylindrical portion 19e, the communication hole 33b, and the through hole 33a.
On the other hand, when the piston 16 advances from the rear end position following the forward swing of the trigger portion 15, the container body becomes negative pressure, so that the outside air is in the first communication hole 31 a, the cylindrical space V, the second space. It passes through the communication hole 27a and the third communication hole 19d in this order and is introduced into the container.

  As described above, according to the trigger type liquid ejector 10 according to the present embodiment, the one end portion 26a of the elastic plate portion 26 is connected to the trigger portion 15 via the second hinge portion 53. The trigger portion 15 and the elastic plate portion 26 can be integrally formed, and the number of parts can be reduced.

Further, since the trigger portion 15 and the elastic plate portion 26 are disposed so as to be rotatable around the hinge portions 52 and 53, as shown in FIG. 4, the trigger portion 15, the elastic plate portion 26 and the attachment member 49 are provided. Are formed in a straight line and connected in series, and the attachment member 49 is attached to the injection tube portion 14, and then the trigger portion 15 and the elastic plate portion 26 are rotated around the hinge portions 52 and 53, respectively. By moving the trigger portion 15, the trigger portion 15 extends downward from the injection cylinder portion 14, and the elastic plate portion 26 is elastically deformed, so that the other end portion 26 b of the elastic plate portion 26 is engaged with the locked portion of the trigger portion 15. 54 can be locked.
As described above, after the series body 55 is linearly formed, the shape of the series body 55 is changed by a simple operation of rotating the trigger portion 15 and the elastic plate portion 26 around the hinge portions 52 and 53, respectively. It becomes possible. Therefore, it is possible to form the series body 55 in a straight line and form it as described above so that the series body 55 can be easily molded. Simplification of the metal mold | die which forms the type | formula liquid ejector 10, simplification of manufacture of this ejector 10, etc. can be aimed at.

Further, since the pair of connecting portions 44 are individually connected to the attachment member 49 via the first hinge portion 52, the trigger portion 15 is swung by pulling the operation portion 43 from the front to the rear, for example. Even when an external force directed downward is applied to the trigger portion 15, this external force can be received by the injection cylinder portion 14 via the first hinge portion 52 and the attachment member 49. Thereby, it becomes possible to rock the trigger part 15 stably, and operability can be improved.
Moreover, since the operation part 43 is connected with the attachment member 49 via the pair of left and right connecting parts 44, it is possible to prevent the trigger part 15 from rattling in the left-right direction C when the trigger part 15 is swung. Thus, the operability can be further improved.

  Further, since a pair of elastic plate portions 26 are disposed so as to sandwich the injection cylinder portion 14 in the left-right direction C, when the trigger portion 15 is swung, the trigger portion 15 is further prevented from shaking in the left-right direction C. Can be suppressed.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the embodiment, the trigger portion 15 includes the side plate member 42, but the side plate member 42 may not be provided.

Moreover, in the said embodiment, although the attachment member 49 shall be attached to the upper surface of the injection cylinder part 14, in the reference example of this invention, it is not restricted to this, For example, it attaches to the cover body 30. It may be. Furthermore, in the reference example of this invention, you may attach to the lower surface of the injection cylinder part 14. FIG. In this case, the trigger part 15 may not have the connecting part 44.

  In the above-described embodiment, a pair of the elastic plate portions 26 are disposed so as to sandwich the injection cylinder portion 14 in the left-right direction C. However, the present invention is not limited to this. For example, the elastic plate portion 26 may not be disposed so as to sandwich the injection cylinder portion 14 in the left-right direction C. Moreover, the elastic board part 26 may be one, and may be three or more.

In the above embodiment, the trigger portion 15 is connected to the attachment member 49 via the first hinge portion 52 and the elastic plate portion 26 is connected via the second hinge portion 53. The reference example of the present invention is not limited to this. In the reference example of the present invention, the trigger part is disposed so as to be swingable in the front-rear direction around the first hinge part, and the one end part of the elastic plate part is located behind the first hinge part. As long as it is connected to the trigger portion via the, the configuration can be changed as appropriate. For example, the trigger part and the elastic plate part may be connected to the connecting body integrally formed with the injection cylinder part via each hinge part.

  Further, the trigger type liquid ejector 10 is not limited to the one shown in the embodiment. The present invention includes a suction tube portion extending in the vertical direction, an injection tube portion extending forward from the suction tube portion, and extending downward from the injection tube portion in the front-rear direction. A trigger portion disposed so as to be swingable, and an elastic plate portion that biases the trigger portion that is swung rearward forward, and the trigger portion is swung rearward. Sometimes, the present invention can be applied to a trigger type liquid ejector that ejects liquid through the nozzle holes provided in each of the suction tube portion and the injection tube portion and the front end of the injection tube portion.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

A Vertical direction B Front-rear direction C Left-right direction 10 Trigger type liquid ejector 13 Suction cylinder part 14 Injection cylinder part 15 Trigger part 26 Elastic plate part 26a One end part 26b Other end part 43 Operation part 44 Connection part 49 Attachment member 52 First Hinge part 53 Second hinge part 54 Locked part

Claims (2)

A suction tube portion extending in the vertical direction;
An injection tube portion extending forward from the suction tube portion;
A trigger portion that extends downward from the injection tube portion and is disposed so as to be swingable in the front-rear direction;
An elastic plate portion that urges the trigger portion swung toward the rear to the front, and
Trigger type that causes liquid to be ejected through the nozzle holes provided at the front ends of the suction cylinder part and the inside of the suction cylinder part and the injection cylinder part when the trigger part is swung backward. A liquid ejector,
The trigger portion is arranged to be swingable in the front-rear direction around the first hinge portion,
One end of the elastic plate part is connected to the trigger part via a second hinge part located behind the first hinge part,
An attachment member is attached to the upper surface of the injection cylinder part, the trigger part being connected via the first hinge part and the elastic plate part being connected via the second hinge part,
The trigger part is provided with an operation part located below the injection cylinder part, and a pair of connecting parts provided separately from both ends in the left-right direction of the operation part, and the injection cylinder part is disposed therebetween. With
Each of these connecting portions is separately connected to the mounting member via the first hinge portion,
The elastic plate portion has a second end opposite to the one end portion positioned below the one end portion, and a side view seen from the left and right direction is curved in a convex shape toward the rear. Is elastically deformed,
The other end portion of the elastic plate portion is locked from below and from the front by a locked portion formed in the trigger portion ,
The trigger type liquid ejector, wherein the trigger part and the elastic plate part are integrally formed through the first hinge part, the second hinge part, and the mounting member . The trigger type liquid ejector according to claim 1 ,
A pair of the elastic plate portions are arranged so as to sandwich the injection cylinder portion in the left-right direction.

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