JP7370174B2 - trigger type liquid squirt - Google Patents

Description

The present invention relates to a triggered liquid ejector.

2. Description of the Related Art Conventionally, as a trigger-type liquid ejector that ejects liquid in the form of foam, the configuration of, for example, Patent Document 1 is known. This trigger-type liquid ejector is equipped with a nozzle member in which an ejection hole for ejecting liquid forward is formed, and the nozzle member has a cylindrical shape located in front of the ejection hole and surrounding the ejection hole. Equipped with a foaming section.

Unexamined Japanese Patent Publication No. 2017-47350

In conventional trigger-type liquid ejectors, the ejecting range of foamy liquid is fixed, and changing the ejecting range requires replacing parts of the foaming unit.

In view of the above circumstances, one of the objects of the present invention is to provide a trigger type liquid ejector that can easily change the liquid ejection range.

One aspect of the trigger-type liquid ejector of the present invention includes: an ejector main body attached to a container body; a nozzle member provided in front of the ejector main body and having an ejection hole for ejecting liquid in the container body; , the ejector body is provided with a vertical supply tube that extends in the vertical direction and sucks up the liquid in the container body, and is disposed in front of the vertical supply tube so as to be able to swing backward in a forward biased state. and a trigger mechanism that causes liquid to flow from inside the vertical supply cylinder toward the ejection hole by swinging the trigger portion backward, and the nozzle member a nozzle body having a hole; a foaming tube provided on the nozzle body and surrounding the jetting hole; and a switching section rotatably provided on the nozzle member and facing the foaming tube and the jetting hole from the front. and a lid portion rotatably provided on the nozzle member and disposed in front of the switching portion, and the foaming tube has an outside air introduction hole for introducing outside air into the inside of the foaming tube. The switching unit includes a hole that narrows the injection range of the liquid that is injected forward through the ejection hole and the bubble-forming tube , and a switching unit operating piece that can rotate the switching unit. The lid has a plug that can be inserted into the hole to close the jet hole, and when the nozzle member is viewed from the front, the switching part operation piece protrudes from the lid. are .

In this trigger-type liquid ejector, by rotating the switching part, there are two states in which the switching part does not face the foaming cylinder and the jetting hole from the front (open state), and a state in which the switching part does not face the foaming cylinder and the jetting hole from the front. The facing state (closed state) can be switched.

When the switching section is opened and the trigger section is swung backwards, the liquid in the container body is injected forward over a wide range through the vertical supply cylinder, the jet hole, and the foaming cylinder.
When the switching part is in the closed state and the trigger part is swung backward, the liquid in the container body is injected forward into a narrow range through the vertical supply cylinder part, the jet hole, the foaming cylinder and the hole part.
That is, the liquid injection range can be switched (adjusted) depending on whether the switching section is in the open state or the closed state. Therefore, according to the present invention, the liquid injection range can be easily changed.

Furthermore, by rotating the lid, it is possible to switch between a state in which the jet hole is closed by the stopper of the lid and a state in which the jet hole is opened.
Therefore, after the liquid is ejected, the ejection hole can be closed by the lid. As a result, even if the liquid adheres to the inner surface of the nozzle when it is ejected from the nozzle, the attached liquid will dry and solidify while the trigger-type liquid ejector is stored. I can control things. Therefore, it is possible to prevent the ejection holes from being blocked, the ejection direction of the liquid from changing, and the foam quality of the ejected liquid from changing.
Further, when the liquid is to be injected next time, the ejection hole can be opened by a simple operation of rotating the lid.
In the above trigger-type liquid ejector, the switching section has a switching section operation piece that can rotate the switching section, and when the nozzle member is viewed from the front, the switching section operation piece is attached to the lid. protrudes from the part.
In this case, with the switching section and the lid closed, the switching section operation piece is exposed to the front. For this reason, when the lid and switching part are closed, by operating the switching part operation piece to open the switching part, the lid is pushed up and rotated together with the switching part, making it possible to spray liquid over a wide range. state. In other words, even when the lid is closed, the liquid can be sprayed over a wide range with a single operation (one action), resulting in good operability.

In the trigger-type liquid ejector, the switching section is engaged with the nozzle main body while facing the foaming tube and the ejection hole from the front, and the lid section covers the hole section from the front. It is preferable that the nozzle body is locked with the nozzle body in this state.

In this case, since the switching part is locked with the nozzle body, the function of narrowing the liquid ejection range by the hole part of the switching part is stabilized. Furthermore, since the lid is engaged with the nozzle body, the lid has a stable function of suppressing the solidification of liquid adhering to the hole, the foam cylinder, the ejection hole, and the like.

In the trigger-type liquid ejector, a first rotation axis that is a rotation center axis of the switching part and a second rotation axis that is a rotation center axis of the lid part are arranged coaxially with each other. is preferred.

In this case, the first rotation axis and the second rotation axis coincide. Thereby, the structure of the nozzle member can be simplified and the nozzle member can be configured compactly.

According to the trigger type liquid ejector of one aspect of the present invention, the liquid ejection range can be easily changed.

FIG. 2 is a longitudinal cross-sectional view showing the trigger-type liquid ejector of the first embodiment. FIG. 2 is a partial front view showing the trigger-type liquid ejector of the first embodiment. FIG. 2 is a partial longitudinal cross-sectional view showing the lid of the trigger-type liquid ejector of the first embodiment in an open state. FIG. 2 is a partial front view showing the lid of the trigger type liquid ejector of the first embodiment in an open state. FIG. 2 is a partial longitudinal cross-sectional view showing the trigger-type liquid ejector of the first embodiment in a state where the lid and the switching section are open. It is a partial longitudinal cross-sectional view which shows the trigger type liquid ejector of 2nd Embodiment. It is a partial front view which shows the trigger type liquid ejector of 2nd Embodiment. FIG. 7 is a partial vertical cross-sectional view showing the lid of the trigger-type liquid ejector of the second embodiment in an open state. It is a partial front view which shows the state which opened the lid part of the trigger type liquid ejector of 2nd Embodiment. FIG. 7 is a partial vertical cross-sectional view showing the trigger-type liquid ejector according to the second embodiment in a state where the lid portion and the switching portion are open. It is a partial longitudinal cross-sectional view which shows the trigger type liquid ejector of 3rd Embodiment. It is a partial front view which shows the trigger type liquid ejector of 3rd Embodiment. FIG. 7 is a partial vertical cross-sectional view showing the lid of the trigger-type liquid ejector according to the third embodiment in an open state. It is a partial front view which shows the state which opened the lid part of the trigger type liquid ejector of 3rd Embodiment. FIG. 7 is a partial vertical cross-sectional view showing a state in which the lid and switching portion of the trigger-type liquid ejector of the third embodiment are opened.

<First embodiment>
A trigger type liquid ejector 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5.
As shown in FIG. 1, the trigger-type liquid ejector 1 includes an ejector main body 2 attached to a container body A, and an ejection hole 4 disposed in the ejector main body 2 for ejecting liquid in the container body A. A nozzle member 3 having a nozzle member 3 is provided. The ejector main body 2 also includes a vertical supply cylinder part 10 that sucks up the liquid in the container body A, and an injection cylinder part 11 that guides the liquid in the vertical supply cylinder part 10 to the ejection hole 4.

Here, in the following description, the direction along the central axis O1 of the vertical supply tube section 10 is referred to as the up-down direction, the container body A side along the up-down direction is referred to as the lower side, and the opposite side is referred to as the upper side. Further, in a plan view seen from above and below, a direction perpendicular to the central axis O1 is referred to as a radial direction, and one direction in the radial direction is referred to as a front-rear direction. Further, the direction perpendicular to the up-down direction and the front-back direction is referred to as the left-right direction. Further, in the front-back direction, the direction in which the injection cylinder part 11 extends from the vertical supply cylinder part 10 is referred to as the front side, and the opposite direction is referred to as the rear side.

The vertical supply cylinder portion 10 extends in the vertical direction. The vertical supply cylinder section 10 includes an outer cylinder 12 and an inner cylinder 13 fitted into the outer cylinder 12.
The outer cylinder 12 includes a large diameter portion 12a, a small diameter portion 12b that is disposed above the large diameter portion 12a and has a smaller diameter than the large diameter portion 12a, an upper end of the large diameter portion 12a, and a lower portion of the small diameter portion 12b. and a top wall portion 12d that closes the upper end of the small diameter portion 12b.
The top wall portion 12d covers the upper side of a check valve 36, which will be described later. A lower end portion of the small diameter portion 12b projects further downward than the annular connecting portion 12c.

The inner cylinder 13 includes a large diameter part 13a into which the large diameter part 12a of the outer cylinder 12 is fitted, and a small diameter part 13b which is disposed above the large diameter part 13a and has a smaller diameter than the large diameter part 13a. The flange portion 13c connects the upper end portion of the large diameter portion 13a and the lower end portion of the small diameter portion 13b, and is formed into a two-stage cylindrical shape whose diameter decreases from the bottom to the top. A reduced diameter portion 13g having an outer diameter smaller than that of the small diameter portion 13b is formed above the small diameter portion 13b. A notch 13f that opens upward and forward is formed in the front portion of the upper end of the reduced diameter portion 13g.

Into the small diameter portion 13b of the inner cylinder 13, the upper part of a pipe 15, which is disposed within the container body A and whose lower end opening is located at the bottom (not shown) of the container body A, is fitted. The inside of the small diameter portion 13b is a supply passage L1 for supplying the liquid in the container body A into the ejector main body 2.
The flange portion 13c of the inner cylinder 13 is located below the annular connection portion 12c of the outer cylinder 12, with a gap S1 secured between the flange portion 13c and the annular connection portion 12c of the outer cylinder 12.

In the large diameter portion 13a of the inner cylinder 13, an annular collar portion 13d is formed at a portion of the large diameter portion 13a of the inner cylinder 13 that projects downward from the large diameter portion 12a of the outer cylinder 12, and projects outward in the axial radial direction. The flange 13d is disposed within the upper end of the mounting cap 14 that is attached (for example, screwed) to the mouth A1 of the container body A, and is locked to the upper end of the mounting cap 14 so as to be rotatable about its axis. . The flange 13d is vertically sandwiched between the mounting cap 14 and the upper opening edge of the mouth A1 of the container body A.
Note that the central axis O1 of the vertical supply cylinder section 10 constituted by the outer cylinder 12 and the inner cylinder 13 is eccentric to the rear side with respect to the container axis of the container body A.

An annular tapered cylindrical portion 35 that protrudes inward is formed in a portion of the inner circumferential surface of the inner tube 13 located above the upper end of the pipe 15 .
The tapered cylindrical portion 35 gradually decreases in diameter as it goes downward. A spherical check valve 36 is disposed inside the tapered cylindrical portion 35 and is separably seated on the inner peripheral surface of the tapered cylindrical portion 35 .
The check valve 36 is spaced apart from the inner circumferential surface of the tapered cylinder part 35 to prevent liquid from flowing from the container body A into the injection cylinder part 11 and into the cylinder 53 described later through the vertical supply cylinder part 10. is allowed. In addition, the check valve 36 is seated on the inner circumferential surface of the tapered cylindrical portion 35 to allow liquid to flow from the injection cylindrical portion 11 and the cylinder 53 into the container body A through the vertical supply cylindrical portion 10. prevent. In the illustrated example, the check valve 36 separates a downstream space located above the tapered cylindrical portion 35 and an upstream space located below the tapered cylindrical portion 35 within the supply passage L1. Communicate and block.

The injection cylinder part 11 projects forward from the vertical supply cylinder part 10 , and its rear end is connected to the front side of the upper end of the vertical supply cylinder part 10 . The inside of the injection cylinder part 11 communicates with the inside of the vertical supply cylinder part 10 through a discharge hole 16 that is formed in the outer cylinder 12 and opens toward the outer peripheral surface of the reduced diameter part 13g of the inner cylinder 13. A horizontal plate-shaped upper plate member 84 is attached to the upper surface of the injection cylinder portion 11 .

In a portion of the injector main body 2 located below the injection cylinder part 11, a cylinder cylinder part 40 that projects forward from the vertical supply cylinder part 10 is disposed. The cylinder tube portion 40 is formed integrally with the outer tube 12.
The cylinder tube portion 40 is open toward the front and is formed integrally with the annular connecting portion 12c of the outer tube 12.

The ejector main body 2 has a trigger part 51 disposed in front of the vertical supply cylinder part 10 so as to be able to swing backward in a forward biased state, and by swinging the trigger part 51 backward, the liquid is vertically fed. It has a trigger mechanism 50 that causes the flow to flow from the inside of the supply cylinder part 10 through the inside of the injection cylinder part 11 toward the injection hole 4 side.
The trigger mechanism 50 includes a piston 52 that is moved back and forth in conjunction with the rocking of the trigger section 51, and a cylinder 53 into which the piston 52 is inserted and whose interior communicates with the vertical supply cylinder section 10. The inside of the cylinder 53 is pressurized and depressurized as the piston 52 moves back and forth. The cylinder 53 is open toward the front.

In the following description, the central axis of the cylinder 53 will be referred to as the cylinder axis O2. Further, the direction perpendicular to the cylinder axis O2 when viewed from the front-rear direction is referred to as the cylinder radial direction, and the direction in which the cylinder revolves around the cylinder axis O2 is referred to as the cylinder circumferential direction.
The trigger mechanism 50 further includes an elastic plate part 54 that urges the trigger part 51 forward, and a cover body 55 that covers the entire vertical supply cylinder part 10 and injection cylinder part 11 from at least the upper and left and right directions. There is.

The cylinder 53 projects forward from the vertical supply cylinder section 10. The cylinder 53 is formed with a communication hole 66 that communicates the inside of the cylinder 53 with the inside of the vertical supply cylinder section 10 . The communication hole 66 is formed in the rear wall portion 61 of the cylinder 53.
The cylinder 53 includes an outer cylindrical portion 60 that opens toward the front, a rear wall portion 61 that closes the rear opening of the outer cylindrical portion 60, and a cylindrical piston that is arranged inside the outer cylindrical portion 60 and extends in the front-rear direction. It includes a guide 62 and a flange portion 53a that protrudes outward from the front end opening edge of the outer cylinder portion 60 in the cylinder radial direction.

The outer cylinder part 60 is fitted inside the cylinder cylinder part 40. The inner circumferential surface of the cylinder cylindrical portion 40 and the outer circumferential surface of the outer cylindrical portion 60 are in close contact with each other at both ends in the front-rear direction. On the other hand, an annular gap S2 is provided between the inner peripheral surface of the cylinder cylindrical part 40 and the outer peripheral surface of the outer cylindrical part 60, in an intermediate part located between both ends in the front-rear direction. There is.

A first ventilation hole 63 is formed in the outer cylinder part 60 to communicate the inside of the outer cylinder part 60 with the gap S2. The annular connecting portion 12c of the outer cylinder 12 has a second passage that communicates the gap S2 with the gap S1 defined between the annular connecting portion 12c of the outer cylinder 12 and the flange portion 13c of the inner cylinder 13. Pores 64 are formed. Furthermore, a third ventilation hole 65 is formed in the flange portion 13c of the inner cylinder 13 to communicate the gap S1 with the inside of the mounting cap 14.

The piston guide 62 is provided to protrude forward from the center of the rear wall portion 61 in the cylinder radial direction. The piston guide 62 has a rearward opening on the inside, and a fitting cylindrical portion provided in the rear wall of the cylinder cylindrical portion 40 and protruding forward from the small diameter portion 12b of the outer cylinder 12. 41 is fitted. A guide hole 62a is formed in the front end wall of the piston guide 62, passing through the front end wall.
An annular recess 62b is formed at the rear end of the outer peripheral surface of the piston guide 62.

The communication hole 66 penetrates a portion of the rear wall portion 61 of the cylinder 53 located above the piston guide 62 in the front-rear direction. In the illustrated example, a protruding cylindrical part 67 that protrudes rearward is formed at the opening periphery of the communication hole 66 in the rear wall part 61, and this protruding cylindrical part 67 is connected to the small diameter part 12b of the outer cylinder 12. It is fitted into the formed through hole. This through hole opens toward the outer circumferential surface of the reduced diameter portion 13g of the inner cylinder 13.

In the vertical supply cylinder section 10, a communication passage L2 is formed between the inner peripheral surface of the outer cylinder 12 and the outer peripheral surface of the reduced diameter section 13g of the inner cylinder 13. The communication passage L2 communicates with the inside of the injection cylinder portion 11 through the discharge hole 16 formed in the outer cylinder 12. Further, the communication passage L2 communicates with the supply passage L1 in the small diameter portion 13b through the notch portion 13f.

Furthermore, a portion on the front side between the inner circumferential surface of the small diameter portion 12b of the outer tube 12 and the outer circumferential surface of the small diameter portion 13b of the inner tube 13 in the vertical supply tube portion 10 is provided inside the fitting tube portion 41. A connection passage 42 is formed that communicates the inside of the third ventilation hole 65 of the inner cylinder 13 with the inside of the third ventilation hole 65 of the inner cylinder 13 . The inside of the fitting cylinder 41, the connection passage 42, and the third ventilation hole 65 constitute a recovery passage 43 that communicates the inside of the piston guide 62 and the inside of the container body A.
Note that the recovery passage 43 is not limited to this embodiment, and may be formed in a portion different from the vertical supply cylinder portion 10, such as in the cylinder 53, for example.

The piston 52 includes a piston main body 72 that opens rearward and into which the piston guide 62 is inserted, and a sliding member that protrudes outward in the cylinder radial direction from the rear end of the piston main body 72. A cylindrical portion 73 is provided. The piston 52 is disposed coaxially with the cylinder axis O2 and supplies the liquid within the cylinder 53 into the vertical supply cylinder section 10 and the injection cylinder section 11.

The inner circumferential surface of the piston body 72 faces the outer circumferential surface of the piston guide 62 with a gap in the cylinder radial direction. A cylindrical connecting portion 70 connected to the trigger portion 51 is formed at the front end of the piston main body portion 72 . The connecting portion 70 has a smaller diameter than the piston main body portion 72.
The sliding cylinder portion 73 is fitted into the piston guide 62 so as to be slidable in the front-rear direction. As a result, in the cylinder 53, a storage chamber 53b into which the liquid flows from the communication passage L2 in the vertical supply cylinder part 10 through the communication hole 66 is formed in a portion located on the rear side of the sliding cylinder part 73. .

The sliding cylinder portion 73 is formed in a tapered shape whose diameter gradually increases from the central portion in the front-rear direction toward the front and rear. The sliding cylinder portion 73 has an outer circumferential surface in contact with the inner circumferential surface of the cylinder 53 over the entire circumference, and an inner circumferential surface in contact with the outer circumferential surface of the piston guide 62 over the entire circumference.
Lip portions 73 a located at both ends in the front-rear direction of the sliding tube portion 73 are in close contact with the inner circumferential surface of the outer tube portion 60 of the cylinder 53 .

The connecting portion 70 of the piston 52 is connected to the trigger portion 51 via a connecting shaft 86, which will be described later. As a result, the piston 52 is urged forward together with the trigger section 51 by the urging force of the elastic plate section 54, and is moved backward and pushed into the cylinder 53 as the trigger section 51 swings backward. It will be done.

Further, when the trigger portion 51 is at the forwardmost swing position (most forward position), the sliding cylinder portion 73 of the piston 52 closes the first vent hole 63. Then, when the piston 52 moves backward by a predetermined amount due to the rearward swinging of the trigger part 51, the sliding cylinder part 73 opens the first ventilation hole 63. As a result, the inside of the container body A includes the third ventilation hole 65, the gap S1 defined between the annular connecting part 12c of the outer cylinder 12 and the flange part 13c of the inner cylinder 13, the second ventilation hole 64, the cylinder It communicates with the outside through a gap S2 located inside the cylinder part 40 and the first ventilation hole 63.

By the way, when the trigger part 51 is operated for the first time, air pressure is applied rearward to the pressure accumulation valve 124, which will be described later, so that the pressure accumulation valve 124 is moved back and the ejection hole 4 is opened, and the storage chamber is opened. It is necessary to exhaust the air inside 53b. However, when the pressure of the rearward air acting on the pressure accumulation valve 124 falls below a predetermined pressure, the pressure accumulation valve 124 moves forward due to the forward biasing force of the coil spring 225, which will be described later, and the ejection hole 4 is closed, and the air is discharged. stops. Therefore, air tends to remain in the storage chamber 53b. Therefore, in this embodiment, the inside of the storage chamber 53b and the inside of the container body A are communicated with each other as described below, so that the air remaining in the storage chamber 53b can be discharged into the container body A.

That is, when the trigger part 51 is located at the rearmost swing position and the piston 52 is moved to the rearmost movement position, the rear end of the inner circumferential surface of the sliding cylinder part 73 touches the recessed part 62b of the piston guide 62. It is located at the same position in the front-back direction. At this time, the inside of the storage chamber 53b and the inside of the piston main body 72 communicate with each other through the space between the inner circumferential surface of the piston main body 72 and the outer circumferential surface of the piston guide 62.
As a result, the inside of the storage chamber 53b passes between the inner circumferential surface of the piston main body 72 and the outer circumferential surface of the piston guide 62, through the inside of the piston main body 72, the guide hole 62a, the inside of the piston guide 62, and the recovery passage 43. It communicates with the inside of the container body A. As described above, when the trigger part 51 is operated for the first time, the air in the storage chamber 53b can be efficiently discharged into the container body A.

In addition, when the storage chamber 53b is filled with contents, residual pressure is generated in the storage chamber 53b when the trigger part 51 is swung to the rearmost swiveling position, and this residual pressure causes the ejection. A "drip" in which the contents are unexpectedly discharged from the hole 4 may occur. According to this embodiment, even if residual pressure is generated in the storage chamber 53b, this residual pressure is transferred between the inner circumferential surface of the piston main body 72 and the outer circumferential surface of the piston guide 62, within the piston main body 72, Since the liquid can be collected into the container body A through the guide hole 62a, the inside of the piston guide 62, and the recovery passage 43, it is possible to suppress liquid dripping from the spout hole 4 due to residual pressure and improve liquid drainage.
In addition, in this embodiment, the effect of suppressing liquid dripping can also be obtained by the pressure accumulation valve 124. Therefore, the above-mentioned effects become more remarkable in a direct pressure type trigger type liquid ejector that does not use the pressure accumulation valve 124.

The trigger part 51 includes a pair of side plate parts 81 whose front and back surfaces face in the left-right direction and which are arranged at intervals in the left-right direction, and a main plate whose front and back faces face in the front-rear direction and which connects the pair of side plate parts 81. A section 80 is provided. The main plate portion 80 connects the front edges of the pair of side plate portions 81 in the left-right direction. In addition, the main plate part 80 is not limited to such a mode, and each arbitrary part of the pair of side plate parts 81 may be connected in the left-right direction. For example, the main plate portion 80 may have a configuration in which only the lower ends of the pair of side plate portions 81 are connected.
The main plate portion 80 is curved concavely toward the rear in a side view seen from the left and right directions. The main plate portion 80 and the pair of side plate portions 81 are integrally formed.

A pair of connecting plate parts 82 are formed at the upper ends of the pair of side plate parts 81, extending upward to the sides of the injection cylinder part 11 and sandwiching the injection cylinder part 11 from the left and right directions. A rotating shaft portion 83 is provided on the pair of connecting plate portions 82 so as to protrude outward in the left-right direction. These rotating shaft portions 83 are rotatably supported by bearing portions provided on an upper plate member 84 that covers the upper part of the injection cylinder portion 11 . Thereby, the trigger portion 51 is able to swing back and forth around the rotating shaft portion 83.

An opening 51a passing through the main plate 80 in the front-back direction is formed in the upper part of the main plate 80 in the trigger part 51, and a connecting cylinder 85 is formed so as to extend rearward from the peripheral edge of the opening 51a. has been done.
A pair of connecting shafts 86 that protrude inward from the connecting tube 85 in the left-right direction are formed in a portion of the inner circumferential surface of the connecting tube 85 located on the rear side. These connecting shafts 86 are inserted into connecting holes formed in the connecting portion 70 of the piston 52. Thereby, the trigger portion 51 and the piston 52 are connected to each other.

The connecting portion 70 of the piston 52 is connected to the connecting shaft 86 so as to be rotatable about its axis and to be movable by a predetermined amount in the vertical direction. This allows the piston 52 to move back and forth as the trigger portion 51 swings back and forth.

The elastic plate portions 54 are integrally formed on the left and right sides of the upper plate member 84, respectively, and are formed in a convex arc shape forward in a side view when viewed from the left and right directions, and extend below the injection cylinder portion 11. There is. The elastic plate portion 54 is formed into a mutually concentric arc shape in a side view seen from the left and right directions, and includes a pair of leaf springs arranged one behind the other.

Of the pair of leaf springs, the leaf spring located on the front side is the main leaf spring 54a, and the leaf spring located on the rear side is the secondary leaf spring 54b.
The lower end portions of the main leaf spring 54a and the sub-leaf spring 54b are integrally connected via an arcuate folded portion 54c. A locking piece 54d projects downward from the folded portion 54c, and this locking piece 54d is inserted from above and engaged with a pocket portion 81a formed in the side plate portion 81 of the trigger portion 51. ing.
Thereby, the elastic plate portion 54 urges the trigger portion 51 forward via the locking piece 54d and the pocket portion 81a.

The upper end portion of the main plate portion 80 of the trigger portion 51 is in contact with a contact portion 20g of the connecting member 20, which will be described later, from the rear due to the bias of the elastic plate portion 54. Thereby, the trigger portion 51 is positioned at the forwardmost swing position.
Note that when the trigger portion 51 is pulled rearward from the forwardmost swinging position, the elastic plate portion 54 is elastically deformed to move the folded portion 54c rearward via the locking piece 54d. At this time, in the elastic plate portion 54, the secondary leaf spring 54b is more elastically deformed than the main leaf spring 54a.

In addition, even when the trigger part 51 is pulled rearward, the locking piece 54d is pulled upward from the pocket part 81a until the trigger part 51 reaches the rearward swinging position (rearmost moving position). The state of engagement with the pocket portion 81a is maintained.

The connecting member 20 is located in front of the front end opening of the injection cylinder part 11, and includes a facing plate part 21 arranged to face the front end opening, and a connecting member 20 that extends rearward from the facing plate part 21 and connects to the injection cylinder part. 11, and a second cylinder part 23 extending forward from the opposing plate part 21.
The second cylindrical portion 23 is arranged at a downwardly eccentric position with respect to the central axis of the injection cylindrical portion 11 . An injection hole 25 is formed in a portion of the opposing plate portion 21 located inside the second cylindrical portion 23 . The injection hole 25 penetrates the opposing plate portion 21 in the front-rear direction. Furthermore, a communication passage 237 that communicates the injection hole 25 and the ejection hole 4 is formed inside the second cylindrical portion 23 . Thereby, the inside of the second cylinder part 23 communicates with the inside of the injection cylinder part 11 through the communication path 237 and the injection hole 25.

The nozzle member 3 is provided in front of the ejector main body 2. The nozzle member 3 includes a nozzle body 220 having a spouting hole 4, a foaming tube 33 provided on the nozzle body 220 and surrounding the spouting hole 4, and a foaming tube 33 that is rotatably provided in the nozzle member 3 and includes a foaming tube 33 and a foaming tube 33 that surrounds the spouting hole 4. It has a switching part 37 facing the hole 4 from the front, and a lid part 38 rotatably provided on the nozzle member 3 and disposed in front of the switching part 37.

The nozzle body 220 includes an outer fitting cylinder part 221 which extends in the front-rear direction and is fitted onto the second cylinder part 23, and a front end of the outer fitting cylinder part 221 is closed and an ejection hole 4 is formed in the center. the nozzle wall 222 , the pressure accumulation chamber 223 defined on the rear side of the nozzle wall 222 , the pressure accumulation valve 124 and the metal coil spring 225 housed in the pressure accumulation chamber 223 , and the front side of the nozzle wall 222 . A covering cylindrical portion 228 that protrudes from is provided. The nozzle body 220 is connected to the injection cylinder part 11 via the connection member 20 by fitting the external fitting cylinder part 221 into the second cylinder part 23 of the connection member 20 .

The nozzle wall portion 222 has a foaming cylinder mounting cylinder portion 227 that projects forward from the nozzle wall portion 222 . A blowout hole 4 is formed inside the foaming tube mounting cylinder portion 227 .
The covering cylinder part 228 is arranged on the front side of the nozzle wall part 222, and surrounds the foaming cylinder mounting cylinder part 227 and the foaming cylinder 33 from the outside.

The pressure accumulation valve 124 is biased forward by a coil spring 225, seats on a valve seat 224 formed on the rear surface of the nozzle wall 222, and closes the ejection hole 4. A small diameter piston part 124a is formed at the rear of the pressure accumulation valve 124, and a large diameter piston part 124b is formed at the front part of the pressure accumulation valve 124. The pressure accumulation valve 124 causes the pressure of the liquid introduced from the injection hole 25 and the communication path 237 to act on both piston portions 124a and 124b. When this pressure exceeds a certain level, the pressure accumulating valve 124 moves back due to the difference in pressure receiving area between the piston parts 124a and 124b, and the ejection hole 4 is opened.

The foaming cylinder 33 is arranged on the front side of the nozzle wall portion 222 and extends in the front-rear direction. The foaming cylinder 33 is externally fitted into the foaming cylinder mounting cylinder part 227. The front end of the bubble-forming tube 33 is smaller in diameter than the portion other than the front end. The front end portion of the foaming cylinder 33 is located on the front side of the foaming cylinder mounting cylinder part 227. As shown in FIGS. 3 and 5, among the front ends of the foaming cylinder 33, the inner diameter of the front end front part 33b is larger than the inner diameter of the front end rear part 33c.

The foaming cylinder 33 has an outside air introduction hole 33a that penetrates the cylinder wall of the foaming cylinder 33 and introduces outside air into the inside of the foaming cylinder 33. The outside air introduction hole 33a is arranged at the front end of the foaming cylinder 33. A plurality of outside air introduction holes 33a are provided in the cylinder wall of the foaming cylinder 33 at intervals over the entire circumference thereof.

As shown in FIGS. 3 and 4, the switching section 37 fits into the covering cylinder section 228. As shown in FIGS. The switching part 37 is inserted into the covering cylinder part 228 from the front and is locked with the covering cylinder part 228. That is, the switching part 37 is locked with the nozzle body 220 in a state where it faces the foaming tube 33 and the jet hole 4 from the front.
The switching section 37 includes a switching section main body 37a that faces the foaming tube 33 and the spout hole 4 from the front, a switching section connecting piece 37b that projects upward from the switching section main body 37a, and a switching section that projects downward from the switching section main body 37a. It has a section operation piece 37c.

The switching section main body 37a is plate-shaped, and a pair of plate surfaces face in the front-rear direction. The rear surface of the switching section main body 37a contacts the front end opening edge of the foaming cylinder 33. The switching section main body 37a has a switching section projecting tube 37e that projects rearward from the rear surface of the switching section main body 37a. The switching portion protruding tube 37e is inserted into the front end portion 33b of the foaming tube 33. A hole 37d is formed in the switching section main body 37a, and passes through the switching section main body 37a in the front-rear direction. In other words, the switching section 37 has a hole 37d. The hole portion 37d is located within the switching portion protruding cylinder 37e, and is arranged coaxially with the ejection hole 4.

In this embodiment, the inner diameter of the hole 37d is constant over the entire length in the front-rear direction. As shown in FIG. 3, in a state in which the switching part 37 faces the foaming tube 33 and the jetting hole 4 from the front, the hole 37d defines the injection range of the liquid that is jetted forward through the jetting hole 4 and the foaming tube 33. Narrow down.

The switching portion connecting piece 37b is rotatably connected to the covering cylinder portion 228 about a first rotation axis C1 extending in the left-right direction. The switching part connecting piece 37b is rotatably supported by the covering cylinder part 228 via a later-described lid part connecting piece 38b of the lid part 38. The first rotation axis C1 is a rotation center axis of the switching section 37. That is, the switching section 37 rotates about the first rotation axis C1 with respect to the nozzle body 220. In this embodiment, the first rotation axis C1 is located above the ejection hole 4.

The switching section operating piece 37c protrudes downward from the front end of the covering tube section 228. The size of the switching section operating piece 37c in the left-right direction is smaller than the size of the switching section main body 37a in the left-right direction. The switching section operation piece 37c is removably fitted to the front end of the covering tube section 228. In this embodiment, the switching section operating piece 37c is removably locked to the front end of the covering cylinder section 228 via a pair of switching section locking pieces 37f that protrude from the switching section operating piece 37c in the left-right direction. . The user of the trigger type liquid ejector 1 can rotate the switching section 37 by operating the switching section operation piece 37c.

Specifically, by operating the switching part operation piece 37c, the switching part 37 can be switched between a state (closed state) in which it faces the foaming tube 33 and the spout hole 4 from the front as shown in FIGS. As shown, it is possible to switch between a state (open state) in which the switching part 37 does not face the foaming cylinder 33 and the jet hole 4 from the front. When the switching section 37 is in the open state, the switching section main body 37a and the switching section operation piece 37c are located above the covering cylinder section 228.

As shown in FIGS. 1 and 2, the lid 38 covers the hole 37d so as to be openable and closable from the front. The lid portion 38 fits within the covering cylinder portion 228. The lid part 38 is inserted into the covering cylinder part 228 from the front and is locked with the covering cylinder part 228. In other words, the lid portion 38 is locked with the nozzle body 220 while covering the hole portion 37d from the front.
As shown in FIGS. 1 to 5, the lid part 38 includes a lid main body 38a that is disposed in front of the switching part 37 and faces the hole 37d from the front, and a plug part that projects rearward from the lid main body 38a. 38d, a lid connecting piece 38b that projects upward from the lid main body 38a, and a lid operating piece 38c that projects downward from the lid main body 38a.

The lid main body 38a has a plate shape, and a pair of plate surfaces face in the front-rear direction. The rear surface of the lid main body 38a contacts the front surface of the switching section 37. The lid main body 38a is removably fitted to the front end of the covering cylinder 228. In this embodiment, the lid main body 38a is removably locked to the front end of the covering cylinder 228 via a pair of lid locking pieces 38g that protrude from the lid main body 38a in the left-right direction (Fig. (see 4).

The plug portion 38d is columnar and extends rearward from the rear surface of the lid main body 38a. The plug portion 38d is inserted into the hole portion 37d. A rear end portion of the plug portion 38d faces and contacts the jet hole 4 from the front. In other words, the plug portion 38d can close the jet hole 4. In this embodiment, the plug 38d includes a cylindrical plug main body 38e extending rearward from the rear surface of the lid main body 38a, and a plurality of plug ribs 38f arranged at intervals on the outer peripheral surface of the plug main body 38e. and has. The height at which the plug rib 38f projects from the outer peripheral surface of the plug main body 38e decreases toward the rear from the rear surface of the lid main body 38a.

The lid connection piece 38b is rotatably connected to the covering tube 228 about a second rotation axis C2 extending in the left-right direction. The lid connecting piece 38b is rotatably supported by the covering cylinder 228. In this embodiment, a pair of lid connection pieces 38b are provided at intervals in the left-right direction. A switching part connecting piece 37b is arranged between the pair of lid part connecting pieces 38b. The second rotation axis C2 is a rotation center axis of the lid portion 38. That is, the lid portion 38 rotates relative to the nozzle body 220 around the second rotation axis C2. In this embodiment, the second rotation axis C2 is located above the ejection hole 4.
In this embodiment, the first rotation axis C1, which is the rotation center axis of the switching part 37, and the second rotation axis C2, which is the rotation center axis of the lid part 38, are arranged coaxially with each other.

As shown in FIG. 2, the lid operation piece 38c projects downward from the front end of the covering cylinder 228. The lower end of the lid operation piece 38c projects further downward than the lower end of the switching operation piece 37c. The size of the lid operation piece 38c in the left-right direction is smaller than the size of the lid main body 38a in the left-right direction. As shown in FIGS. 1 to 4, the lid operation piece 38c has a cover portion 38h that projects rearward from the rear surface of the lid operation piece 38c. The cover portion 38h covers the lower end portion of the switching portion operation piece 37c from below. The user of the trigger-type liquid ejector 1 can rotate the lid 38 by operating the lid operation piece 38c. Note that by providing the cover portion 38h, when the lid portion 38 is rotated, it is suppressed that the switching portion 37 is unintentionally rotated together with the lid portion 38.

Specifically, by operating the lid operation piece 38c, the lid 38 can be switched between a state in which it faces the hole 37d and the spout hole 4 from the front (closed state) as shown in FIGS. 4, the lid 38 can be switched between a state (open state) in which it does not face the hole 37d and the jet hole 4 from the front. When the lid 38 is in the open state, the lid main body 38a and the lid operation piece 38c are located above the covering cylinder 228.

Next, the operation of the trigger type liquid ejector 1 configured as described above will be explained.
As shown in FIGS. 3 and 4, first, the lid portion 38 is opened. When the trigger part 51 is pulled rearward against the biasing force of the elastic plate part 54, the trigger part 51 swings rearward, and the piston 52 retreats with this swing. Thereby, the liquid in the storage chamber 53b of the cylinder 53 is introduced into the injection cylinder portion 11 through the communication hole 66 and the communication passage L2. At this time, the check valve 36 is closed, and the communication between the inside of the injection cylinder part 11 and the inside of the container body A through the supply passage L1 is cut off, and the inside of the injection cylinder part 11 is pressurized, and the injection hole 25 The insides of the small-diameter piston portion 124a and the large-diameter piston portion 124b of the pressure accumulation valve 124 are also pressurized through the communication passage 237.

At this time, since the inner diameter of the large diameter piston part 124b is larger than the inner diameter of the small diameter piston part 124a, due to the difference in the pressure receiving areas of the small diameter piston part 124a and the large diameter piston part 124b, the pressure accumulation valve 124 is Pressure is applied towards. When this pressure exceeds a predetermined pressure, the pressure accumulation valve 124 is moved backward against the forward biasing force of the coil spring 225, and the front end of the pressure accumulation valve 124 is separated from the valve seat 224. The inside of the jet hole 4 communicates with the inside of the jet hole 4 through the injection hole 25, the communication passage 237, the inside of the pressure accumulation valve 124, and the gap between the front end of the pressure accumulation valve 124 and the valve seat 224. The foam is injected into the bubble-forming cylinder 33.

At this time, the inside of the foaming tube 33 becomes negative pressure, outside air (air) is introduced into the foaming tube 33 through the outside air introduction hole 33a, and the liquid is mixed with the outside air in the foaming tube 33 and foams. The bubble forming cylinder 33 is injected from the front end opening. Note that the liquid injected from the jet hole 4 into the foaming cylinder 33 is in the form of a mist, and for example, this mist-like liquid collides with the inner circumferential surface of the foaming cylinder 33 inside the foaming cylinder 33. When the flow of liquid is disrupted, it mixes with the outside air and becomes foamy.

When the operation of pulling the trigger part 51 is stopped, the supply of liquid from inside the storage chamber 53b into the injection cylinder part 11 through the communication passage L2 of the vertical supply cylinder part 10 is stopped. At this time, the pressure accumulation valve 124 moves forward due to the forward urging force of the coil spring 225, and the front end of the pressure accumulation valve 124 seats on the valve seat 224 and closes it, thereby connecting the inside of the injection cylinder 11 and the injection hole 4. Cut off communication.
Then, the trigger part 51 is urged forward by the elastic restoring force of the elastic plate part 54 and returns to its original position, and the piston 52 moves forward accordingly. Therefore, a negative pressure is generated in the storage chamber 53b, and this negative pressure allows the liquid in the container body A to be sucked up into the supply passage L1 of the vertical supply cylinder portion 10 through the pipe 15.
Then, the newly sucked up liquid pushes up the check valve 36 to open it, and is introduced into the storage chamber 53b through the communication passage L2. This makes it possible to prepare for the next liquid injection.

In the trigger-type liquid ejector 1 of the present embodiment described above, by rotating the switching part 37, the switching part 37 can be switched between a state in which it does not face the foaming tube 33 and the spouting hole 4 from the front (open state), and It is possible to switch between a state (closed state) in which the portion 37 faces the foaming cylinder 33 and the jet hole 4 from the front.

As shown in FIG. 5, when the switching part 37 is opened and the trigger part 51 is swung backward, the liquid in the container body A is transferred to the vertical supply cylinder part 10, the injection cylinder part 11, the jet hole 4, and the structure. It passes through the bubble tube 33 and is sprayed forward over a wide range.
As shown in FIG. 3, when the switching part 37 is in the closed state and the trigger part 51 is swung backward, the liquid in the container body A is transferred to the vertical supply cylinder part 10, the injection cylinder part 11, the jet hole 4, and the structure. It is injected forward into a narrow range through the bubble tube 33 and hole 37d.
That is, the liquid injection range can be switched (adjusted) depending on whether the switching unit 37 is in the open state or the closed state. Therefore, according to this embodiment, the liquid injection range can be easily changed.

In addition, by rotating the lid 38, it is possible to switch between a state in which the jet hole 4 is closed by the stopper 38d of the lid 38 and a state in which the jet hole 4 is opened.
Therefore, after the liquid is ejected, the ejection hole 4 can be closed by the lid portion 38. As a result, even if the liquid adheres to and remains on the inner surface of the ejection hole 4 when the liquid is ejected from the ejection hole 4, the adhering liquid will dry while the trigger type liquid ejector 1 is stored. This prevents it from solidifying. Therefore, it is possible to prevent the ejection holes 4 from being blocked, the ejection direction of the liquid from changing, and the foam quality of the ejected liquid from changing.
Further, when the liquid is to be injected next time, the ejection hole 4 can be opened by a simple operation of rotating the lid part 38.

Moreover, in this embodiment, the switching part 37 is locked with the nozzle main body 220 in a state where it faces the foaming tube 33 and the jet hole 4 from the front. Further, the lid portion 38 is locked with the nozzle body 220 while covering the hole portion 37d from the front.
In this case, since the switching part 37 is locked with the nozzle body 220, the function of narrowing the liquid ejection range by the hole 37d of the switching part 37 is stabilized. Moreover, since the lid part 38 is locked with the nozzle body 220, the function of the lid part 38 to suppress solidification of the liquid adhering to the hole part 37d, the bubble-forming cylinder 33, the ejection hole 4, etc. is stabilized.

Further, in this embodiment, the first rotation axis C1, which is the rotation center axis of the switching part 37, and the second rotation axis C2, which is the rotation center axis of the lid part 38, coincide with each other.
Thereby, the structure of the nozzle member 3 can be simplified and the nozzle member 3 can be configured compactly.

<Second embodiment>
Next, a trigger type liquid ejector 100 according to a second embodiment of the present invention will be described with reference to FIGS. 6 to 10. Note that in the second embodiment, the same components as in the first embodiment are given the same reference numerals, and the description thereof will be omitted.

6 and 7 are enlarged views of the vicinity of the nozzle member 3 with the switching section 37 in the closed state and the lid section 38 in the closed state. FIGS. 8 and 9 are enlarged views of the vicinity of the nozzle member 3 with the switching section 37 in the closed state and the lid section 38 in the open state. FIG. 10 is an enlarged view of the vicinity of the nozzle member 3 with the switching part 37 in the open state and the lid part 38 in the open state.

In this embodiment, a pair (plurality) of switching section operation pieces 37c of the switching section 37 are provided at intervals in the left-right direction. As shown in FIG. 7, the switching section operating piece 37c protrudes from the lid section 38 when the nozzle member 3 is viewed from the front. That is, in this front view, the switching section operation piece 37c does not overlap the lid section 38. In this embodiment, a lid operation piece 38c is arranged between a pair of switching operation pieces 37c in the left-right direction. As shown in FIG. 6, the front surface of the switching section operation piece 37c is arranged flush with the front surface of the lid section operation piece 38c.

According to the trigger-type liquid ejector 100 of this embodiment described above, the same effects as those of the above-described embodiments can be obtained.

Further, in this embodiment, as shown in FIG. 7, when the switching section 37 and the lid section 38 are closed, the switching section operation piece 37c is exposed to the front. Therefore, by operating the switching part operation piece 37c to open the switching part 37 from the closed state of the lid part 38 and the switching part 37, the lid part 38 is pushed up and rotated together with the switching part 37, and as shown in FIG. As shown in 10, a state is reached in which liquid can be sprayed over a wide range. In other words, even when the lid portion 38 is closed, the liquid can be sprayed over a wide range with a single operation (one action), which provides good operability.

<Third embodiment>
Next, a trigger type liquid ejector 110 according to a third embodiment of the present invention will be described with reference to FIGS. 11 to 15. In addition, in the third embodiment, the same components as those in the first embodiment and the second embodiment are given the same reference numerals, and the description thereof will be omitted.

FIGS. 11 and 12 are enlarged views of the vicinity of the nozzle member 3 with the switching part 37 in the closed state and the lid part 38 in the closed state. FIGS. 13 and 14 are enlarged views of the vicinity of the nozzle member 3 with the switching section 37 in the closed state and the lid section 38 in the open state. FIG. 15 is an enlarged view of the vicinity of the nozzle member 3 with the switching part 37 in the open state and the lid part 38 in the open state.

In this embodiment, one switching section operation piece 37c of the switching section 37 is provided. The switching part operating piece 37c is arranged at a position biased to one side in the left-right direction with respect to the central axis of the jet hole 4. In this embodiment, as shown in FIG. 12, when the nozzle member 3 is viewed from the front, the switching part operation piece 37c is arranged at a position biased to the left with respect to the central axis of the jet hole 4. .
Further, the lid operation piece 38c of the lid 38 is disposed at a position biased toward the other side in the left-right direction with respect to the central axis of the jet hole 4. In this embodiment, when the nozzle member 3 is viewed from the front as shown in FIG. 12, the lid operation piece 38c is disposed at a position biased to the right side with respect to the central axis of the jet hole 4.
Also in this embodiment, the switching section operation piece 37c protrudes from the lid section 38 in the front view shown in FIG.

According to the trigger-type liquid ejector 110 of this embodiment described above, the same effects as those of the above-described embodiments can be obtained.

Note that the present invention is not limited to the above-described embodiments, and the configuration can be changed, for example, as described below, without departing from the spirit of the present invention.

In the first embodiment and the second embodiment, an example was given in which the lid portion locking piece 38g protrudes from the lid portion main body 38a in the left-right direction, but the present invention is not limited to this. As shown in FIGS. 12 and 14 of the third embodiment, the lid locking piece 38g projects in the left-right direction from the lid operation piece 38c and is removably locked to the front end of the covering cylinder 228. Good too.

In the first to third embodiments, the pressure accumulation type trigger type liquid ejector 1, 100, 110 including the pressure accumulation valve 124 has been described, but the present invention is not limited to the pressure accumulation type. That is, the present invention is also applicable to a direct pressure type trigger type liquid ejector that does not include the pressure accumulation valve 124.

In the first to third embodiments, an example was given in which the outside air introduction hole 33a of the foaming tube 33 is provided to penetrate the cylinder wall of the foaming tube 33, but the configuration is not limited to this. For example, the outside air introduction hole may be in the shape of a groove extending across the inner circumferential surface and the rear end surface of the cylinder wall of the foaming cylinder 33, or in the shape of a notch cut out from the rear end surface of the cylinder wall of the foaming cylinder 33 toward the front. etc.

In addition, the components in the embodiments described above can be replaced with known components as appropriate without departing from the spirit of the present invention, and the embodiments and modifications described above may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1,100,110... Trigger type liquid ejector, 2... Ejector main body, 3... Nozzle member, 4... Ejection hole, 10... Vertical supply cylinder part, 33... Foaming cylinder, 33a... Outside air introduction hole, 37... Switching Part, 37c... Switching part operation piece, 37d... Hole part, 38... Lid part, 38d... Plug part, 50... Trigger mechanism, 51... Trigger part, 220... Nozzle body, A... Container body, C1... First rotation Axis, C2...second rotation axis

Claims (3)

an ejector body attached to the container body;
a nozzle member provided in front of the ejector main body and having an ejection hole for ejecting the liquid in the container body;
The ejector main body is
a vertical supply cylinder that extends in the vertical direction and sucks up the liquid inside the container;
A trigger part is disposed in front of the vertical supply cylinder part so as to be able to swing backward in a forward biased state, and when the trigger part swings backward, the liquid is ejected from inside the vertical supply cylinder part. It has a trigger mechanism that causes the flow to flow toward the hole side,
The nozzle member is
a nozzle body having the ejection hole;
a foaming cylinder provided in the nozzle body and surrounding the ejection hole;
a switching section rotatably provided on the nozzle member and facing the foaming cylinder and the jetting hole from the front;
a lid portion rotatably provided on the nozzle member and disposed in front of the switching portion;
The foaming cylinder has an outside air introduction hole that introduces outside air into the inside of the foaming cylinder,
The switching section is
a hole that narrows the injection range of the liquid that is injected forward through the ejection hole and the bubble-forming tube;
a switching part operation piece that can rotate the switching part ;
The lid has a plug that can be inserted into the hole and close the ejection hole,
In a front view of the nozzle member from the front, the switching part operation piece protrudes from the lid part.
Trigger type liquid squirt. The switching part is locked with the nozzle main body in a state facing the foaming tube and the jet hole from the front,
The lid portion is locked with the nozzle body while covering the hole portion from the front.
Trigger type liquid ejector according to claim 1. A first rotation axis that is a rotation center axis of the switching part and a second rotation axis that is a rotation center axis of the lid part are arranged coaxially with each other.
The trigger type liquid ejector according to claim 1 or 2.

Images