JP2020196496A - Trigger type liquid sprayer - Google Patents

Abstract

To facilitate changing a liquid injection range.SOLUTION: A trigger type liquid sprayer includes a sprayer body, and a nozzle member 3 having a spraying hole 4 for spraying liquid. The sprayer body comprises a vertical supply cylinder part for sucking up liquid in a container body, and a trigger mechanism having a trigger part arranged in front of the vertical supply cylinder part so as to be swingable backward in a forward energizing state, and circulating liquid from the vertical supply cylinder part to a spraying hole 4 side due to the backward swing of the trigger part. The nozzle member 3 has a nozzle body 220 having the spraying hole 4, a foaming cylinder 33 surrounding the spraying hole 4, a switching part 37 rotatably disposed in the nozzle member 3, facing from the front side to the foaming cylinder 33 and the spraying hole 4, and a lid part 38 rotatably disposed in the nozzle member 3 and arranged in front of the switching part 37. The switching part 37 has a hole part 37d for narrowing an injection range of liquid sprayed forward via the spraying hole 4 and the foaming cylinder 33, and the lid part 38 has a plug part 38d inserted into the part 37d and capable of closing the spraying hole 4.SELECTED DRAWING: Figure 3

Description

The present invention relates to a trigger type liquid ejector.

Conventionally, for example, the configuration of Patent Document 1 is known as a trigger type liquid ejector that ejects a liquid in the form of bubbles. This trigger type liquid ejector includes a nozzle member in which an ejection hole for ejecting liquid toward the front is formed, and the nozzle member is a tubular shape located in front of the ejection hole and surrounding the ejection hole. It has a foaming part.

Japanese Unexamined Patent Publication No. 2017-47350

In the conventional trigger type liquid ejector, the injection range of the foam-like liquid is constant, and it is necessary to replace parts of the foam-forming part in order to change the injection range.

In view of the above circumstances, one object of the present invention is to provide a trigger type liquid ejector capable of easily changing the injection range of the liquid.

One aspect of the trigger type liquid ejector of the present invention is an ejector main body mounted on the container body, and 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 provided with a vertical supply cylinder portion that extends in the vertical direction and sucks up the liquid in the container, and a vertical supply cylinder portion that is oscillating rearward in a forward urged state in front of the vertical supply cylinder portion. The nozzle member has a trigger mechanism for flowing a liquid from the inside of the vertical supply cylinder portion toward the ejection hole side by swinging the trigger portion rearward, and the nozzle member ejects the liquid. A nozzle body having a hole, a foam-forming cylinder provided in the nozzle body and surrounding the ejection hole, and a switching portion rotatably provided in the nozzle member and facing the foam-forming cylinder and the ejection hole from the front. And a lid portion rotatably provided on the nozzle member and arranged in front of the switching portion, and the foam-forming cylinder has an outside air introduction hole for introducing outside air inside the foam-forming cylinder. The switching portion has a hole portion for narrowing the injection range of the liquid to be ejected forward through the ejection hole and the foam forming cylinder, and the lid portion is inserted into the hole portion to form the ejection hole. Has a plug that can be closed.

In this trigger type liquid ejector, by rotating the switching portion, the switching portion does not face the foam cylinder and the ejection hole from the front (open state), and the switching portion faces the foam cylinder and the ejection hole from the front. It is possible to switch between the facing state (closed state).

When the switching portion is opened and the trigger portion is swung backward, the liquid in the container is injected in a wide range forward through the vertical supply cylinder portion, the ejection hole and the foam forming cylinder.
When the switching portion is closed and the trigger portion is swung backward, the liquid in the container is ejected in a narrow range forward through the vertical supply cylinder portion, the ejection hole, the foam forming cylinder and the hole portion.
That is, the liquid injection range can be switched (adjusted) between the open state and the closed state of the switching unit. Therefore, according to the present invention, the injection range of the liquid can be easily changed.

Further, by rotating the lid portion, it is possible to switch between a state in which the ejection hole is closed by the plug portion of the lid portion and a state in which the ejection hole is opened.
Therefore, after the liquid is ejected, the ejection hole can be closed by the lid portion. As a result, even if the liquid adheres to the inner surface of the ejection hole and remains when the liquid is ejected from the ejection hole, the adhered liquid dries and solidifies while the trigger type liquid ejector is stored. It can be suppressed. Therefore, it is possible to prevent the ejection holes from being blocked, the liquid injection direction from being changed, and the foam quality of the injected liquid from being changed.
Further, when the liquid is ejected next time, the ejection hole can be opened by a simple operation of rotating the lid portion.

In the trigger type liquid ejector, the switching portion is locked to the nozzle body in a state of facing the foam cylinder and the ejection hole from the front, and the lid portion covers the hole portion from the front. It is preferable that the nozzle body is locked in this state.

In this case, since the switching portion is locked with the nozzle body, the function of narrowing the liquid injection range is stabilized by the hole portion of the switching portion. Further, since the lid portion is locked with the nozzle body, the function of suppressing the solidification of the liquid adhering to the hole portion, the foam forming cylinder, the ejection hole, etc. is stabilized by the lid portion.

In the trigger type liquid ejector, the first rotation axis, which is the rotation center axis of the switching portion, and the second rotation axis, which is the rotation center axis of the lid portion, are arranged coaxially with each other. Is preferable.

In this case, the first rotation shaft and the second rotation shaft coincide with each other. As a result, the structure of the nozzle member can be simplified and the nozzle member can be compactly configured.

In the trigger type liquid ejector, the switching unit has a switching unit operating piece capable of rotating the switching unit, and the switching unit operating piece is the lid when the nozzle member is viewed from the front. It is preferable that it protrudes from the portion.

In this case, the switching unit operating piece is exposed forward with the switching unit and the lid closed. Therefore, by operating the switching unit operating piece to open the switching unit from the state where the lid and the switching unit are closed, the lid unit is pushed up and rotated together with the switching unit, and the liquid can be injected over a wide range. It becomes a state. That is, even when the lid is closed, the liquid can be sprayed over a wide range by a single operation (one action), and the operability is good.

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

It is a vertical sectional view which shows the trigger type liquid ejector of 1st Embodiment. It is a partial front view which shows the trigger type liquid ejector of 1st Embodiment. It is a partial vertical sectional view which shows the state which opened the lid part of the trigger type liquid ejector of 1st Embodiment. It is a partial front view which shows the state which opened the lid part of the trigger type liquid ejector of 1st Embodiment. It is a partial vertical sectional view which shows the state which opened the lid part and the switching part of the trigger type liquid ejector of 1st Embodiment. It is a partial vertical 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. It is a partial vertical sectional view which shows the state which opened the lid part of the trigger type liquid ejector of 2nd Embodiment. It is a partial front view which shows the state which opened the lid part of the trigger type liquid ejector of 2nd Embodiment. It is a partial longitudinal sectional view which shows the state which opened the lid part and the switching part of the trigger type liquid ejector of 2nd Embodiment. It is a partial vertical 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. It is a partial vertical sectional view which shows the state which opened the lid part of the trigger type liquid ejector of 3rd Embodiment. It is a partial front view which shows the state which opened the lid part of the trigger type liquid ejector of 3rd Embodiment. It is a partial longitudinal sectional view which shows the state which opened the lid part and the switching part of the trigger type liquid ejector of 3rd Embodiment.

<First Embodiment>
The trigger type liquid ejector 1 of the 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 has an ejector main body 2 mounted on the container body A and an ejection hole 4 arranged in the ejector main body 2 to inject liquid in the container body A. The nozzle member 3 is provided. Further, the ejector main body 2 has a vertical supply cylinder portion 10 that sucks up the liquid in the container body A, and an injection cylinder portion 11 that guides the liquid in the vertical supply cylinder portion 10 to the ejection hole 4.

Here, in the following description, the direction along the central axis O1 of the vertical supply cylinder portion 10 is referred to as the vertical direction, the container body A side is referred to as the lower side, and the opposite side is referred to as the upper side along the vertical direction. Further, in a plan view seen from the vertical direction, the direction orthogonal to the central axis O1 is referred to as the axial radial direction, and one of the axial radial directions is referred to as the front-rear direction. Further, a direction orthogonal to both directions in the vertical direction and the front-back direction is referred to as a left-right direction. Further, in the front-rear direction, the direction in which the injection cylinder portion 11 extends from the vertical supply cylinder portion 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 portion 10 includes an outer cylinder 12 and an inner cylinder 13 fitted in the outer cylinder 12.
The outer cylinder 12 has a large diameter portion 12a, a small diameter portion 12b arranged above the large diameter portion 12a and reduced in diameter from the large diameter portion 12a, an upper end portion of the large diameter portion 12a, and a lower portion of the small diameter portion 12b. It is provided with an annular connecting portion 12c for connecting the above and a top wall portion 12d for closing the upper end portion of the small diameter portion 12b.
The top wall portion 12d covers the upper part of the check valve 36, which will be described later. The lower end of the small diameter portion 12b projects downward from the annular connecting portion 12c.

The inner cylinder 13 includes a large diameter portion 13a to which the large diameter portion 12a of the outer cylinder 12 is fitted, and a small diameter portion 13b that is arranged above the large diameter portion 13a and has a smaller diameter than the large diameter portion 13a. A flange portion 13c for connecting the upper end portion of the large diameter portion 13a and the lower end portion of the small diameter portion 13b is provided, and the diameter is reduced from the lower side to the upper side in a two-stage tubular shape. A reduced diameter portion 13g having a smaller outer diameter than the small diameter portion 13b is formed on the upper portion of the small diameter portion 13b. A notch 13f that opens upward and forward is formed in the front portion of the upper end portion of the reduced diameter portion 13g.

In the small diameter portion 13b of the inner cylinder 13, the upper portion of the pipe 15 which is arranged in the container body A and whose lower end opening is located at the bottom portion of the container body A (not shown) 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 connecting portion 12c of the outer cylinder 12 with a gap S1 secured between the flange portion 13c of the outer cylinder 12 and the annular connecting portion 12c of the outer cylinder 12.

In the large-diameter portion 13a of the inner cylinder 13, an annular flange portion 13d protruding outward in the axial direction thereof is formed in a portion of the outer cylinder 12 protruding downward from the large-diameter portion 12a. The flange portion 13d is arranged in the upper end portion of the mounting cap 14 mounted (for example, screwed) on the mouth portion A1 of the container body A, and is rotatably locked to the upper end portion of the mounting cap 14 and its axis. .. The collar portion 13d is sandwiched in the vertical direction by the mounting cap 14 and the upper end opening edge of the mouth portion A1 of the container body A.
The central axis O1 of the vertical supply cylinder portion 10 composed of the outer cylinder 12 and the inner cylinder 13 is eccentric to the rear side with respect to the container shaft of the container body A.

An annular tapered cylinder portion 35 projecting inward is formed on a portion of the inner peripheral surface of the inner cylinder 13 located above the upper end of the pipe 15.
The diameter of the tapered cylinder portion 35 is gradually reduced toward the bottom. Inside the tapered cylinder portion 35, a spherical check valve 36 that is seated on the inner peripheral surface of the tapered cylinder portion 35 so as to be separable is arranged.
By separating the check valve 36 from the inner peripheral surface of the tapered cylinder portion 35, the liquid flows from the container body A into the injection cylinder portion 11 and into the cylinder 53 described later through the vertical supply cylinder portion 10. Tolerate. Further, when the check valve 36 is seated on the inner peripheral surface of the tapered cylinder portion 35, the liquid flows from the inside of the injection cylinder portion 11 and the inside of the cylinder 53 into the container body A through the inside of the vertical supply cylinder portion 10. prevent. In the illustrated example, the check valve 36 has a space on the downstream side located above the tapered cylinder portion 35 and a space on the upstream side located below the tapered cylinder portion 35 in the supply passage L1. Communicate and shut off.

The injection cylinder portion 11 protrudes forward from the vertical supply cylinder portion 10, and the rear end portion is connected to the front side of the upper end portion of the vertical supply cylinder portion 10. The inside of the injection cylinder portion 11 is formed in the outer cylinder 12 and communicates with the inside of the vertical supply cylinder portion 10 through a discharge hole 16 that opens toward the outer peripheral surface of the reduced diameter portion 13 g 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.

A cylinder portion 40 projecting forward from the vertical supply cylinder portion 10 is disposed in a portion of the ejector main body 2 located below the injection cylinder portion 11. The cylinder portion 40 for a cylinder is integrally formed with an outer cylinder 12.
The cylinder portion 40 is open toward the front and is integrally formed with the annular connecting portion 12c of the outer cylinder 12.

The ejector main body 2 has a trigger portion 51 arranged in front of the vertical supply cylinder portion 10 so as to be swingable rearward in a forward urged state, and the liquid is vertically swung by the rearward swing of the trigger portion 51. It has a trigger mechanism 50 that circulates from the inside of the supply cylinder portion 10 through the inside of the injection cylinder portion 11 toward the ejection hole 4 side.
The trigger mechanism 50 includes a piston 52 that is moved back and forth in conjunction with the swing of the trigger portion 51, and a cylinder 53 into which the piston 52 is inserted and whose inside is communicated with the inside of the vertical supply cylinder portion 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 is referred to as a cylinder shaft O2. Further, the direction orthogonal to the cylinder shaft O2 when viewed from the front-rear direction is referred to as the cylinder radial direction, and the direction rotating around the cylinder shaft O2 is referred to as the cylinder circumferential direction.
The trigger mechanism 50 further includes an elastic plate portion 54 that biases the trigger portion 51 forward, and a cover body 55 that covers the entire vertical supply cylinder portion 10 and the injection cylinder portion 11 from at least upward and from the left and right directions. There is.

The cylinder 53 projects forward from the vertical supply cylinder portion 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 portion 10. The communication hole 66 is formed in the rear wall portion 61 of the cylinder 53.
The cylinder 53 is a tubular piston that is arranged inside the outer cylinder portion 60, the outer cylinder portion 60 that opens toward the front, the rear wall portion 61 that closes the rear opening of the outer cylinder portion 60, and the outer cylinder portion 60, and extends in the front-rear direction. A guide 62 and a flange portion 53a projecting outward in the cylinder radial direction from the front end opening edge of the outer cylinder portion 60 are provided.

The outer cylinder portion 60 is fitted inside the cylinder portion 40. The inner peripheral surface of the cylinder portion 40 and the outer peripheral surface of the outer cylinder 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 in the intermediate portion between the inner peripheral surface of the cylinder portion 40 and the outer peripheral surface of the outer cylinder portion 60, which is located between both ends in the front-rear direction. There is.

The outer cylinder portion 60 is formed with a first ventilation hole 63 that communicates the inside of the outer cylinder portion 60 with the gap S2. The annular connecting portion 12c of the outer cylinder 12 communicates with the gap S2 and 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. The pores 64 are formed. Further, the flange portion 13c of the inner cylinder 13 is formed with a third ventilation hole 65 that communicates the gap S1 with the inside of the mounting cap 14.

The piston guide 62 projects forward from the central portion of the rear wall portion 61 in the cylinder radial direction. The inside of the piston guide 62 is opened rearward, and the fitting cylinder portion which is the rear wall of the cylinder portion 40 in the opening and is projected forward from the small diameter portion 12b of the outer cylinder 12. 41 is fitted. A guide hole 62a penetrating the front end wall of the piston guide 62 is formed in 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 the rear wall portion 61 of the cylinder 53, which is located above the piston guide 62, in the front-rear direction. In the illustrated example, a protruding cylinder portion 67 projecting rearward is formed at the opening peripheral edge portion of the communication hole 66 in the rear wall portion 61, and the protruding cylinder portion 67 is formed on the small diameter portion 12b of the outer cylinder 12. It is fitted in the formed through hole. This through hole is opened toward the outer peripheral surface of the reduced diameter portion 13 g of the inner cylinder 13.

A connecting passage L2 is formed between the inner peripheral surface of the outer cylinder 12 and the outer peripheral surface of the reduced diameter portion 13g of the inner cylinder 13 of the vertical supply cylinder portion 10. The connecting 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 connecting passage L2 communicates with the supply passage L1 in the small diameter portion 13b through the notch portion 13f.

Further, among the inner peripheral surface of the small diameter portion 12b of the outer cylinder 12 and the outer peripheral surface of the small diameter portion 13b of the inner cylinder 13 in the vertical supply cylinder portion 10, the front portion is inside the fitting cylinder portion 41. And the inside of the third ventilation hole 65 of the inner cylinder 13, and the connection passage 42 communicating with the inside of the third ventilation hole 65 is formed. The inside of the fitting cylinder 41, the connection passage 42, and the third ventilation hole 65 form a collection passage 43 that communicates the inside of the piston guide 62 and the inside of the container body A.
The recovery passage 43 is not limited to such an embodiment, and may be formed in a portion different from the vertical supply cylinder portion 10, such as being formed in the cylinder 53.

The piston 52 slides so as to project outward in the cylinder radial direction from the piston body 72, which opens rearward and into which the piston guide 62 is inserted, and the rear end of the piston body 72. It is provided with a cylinder portion 73. The piston 52 is arranged coaxially with the cylinder shaft O2, and supplies the liquid in the cylinder 53 into the vertical supply cylinder portion 10 and the injection cylinder portion 11.

The inner peripheral surface of the piston body 72 faces the outer peripheral surface of the piston guide 62 with a gap in the cylinder radial direction. A columnar connecting portion 70 connected to the trigger portion 51 is formed at the front end portion 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 slidably fitted to the piston guide 62 in the front-rear direction. As a result, a storage chamber 53b is formed in the cylinder 53 located on the rear side of the sliding cylinder portion 73, through which the liquid flows from the connecting passage L2 in the vertical supply cylinder portion 10 through the communication hole 66. ..

The sliding cylinder portion 73 is formed in a tapered shape in which the diameter gradually increases from the central portion in the front-rear direction toward the front and the rear. The outer peripheral surface of the sliding cylinder portion 73 is in contact with the inner peripheral surface of the cylinder 53 over the entire circumference, and the inner peripheral surface is in contact with the outer peripheral surface of the piston guide 62 over the entire circumference.
Of the sliding cylinder portions 73, the lip portions 73a located at both ends in the front-rear direction are in close contact with the inner peripheral surface of the outer cylinder 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 described later. As a result, the piston 52 is urged forward together with the trigger portion 51 by the urging force of the elastic plate portion 54, and moves rearward as the trigger portion 51 swings backward and is pushed into the cylinder 53. Is done.

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

By the way, when the trigger portion 51 is operated for the first time, the pressure accumulator valve 124, which will be described later, is applied with air pressure toward the rear to retract the accumulator valve 124 and open the ejection hole 4, and the storage chamber. It is necessary to exhaust the air in 53b. However, when the pressure of the rearward air acting on the accumulator valve 124 falls below a predetermined pressure, the accumulator valve 124 advances due to the forward urging force of the coil spring 225 described later, the ejection hole 4 is closed, and the air is discharged. Stops. Therefore, air tends to remain in the storage chamber 53b. Therefore, in the present embodiment, the inside of the storage chamber 53b and the inside of the container body A are communicated with each other as described below, and the air remaining in the storage chamber 53b can be discharged into the container body A.

That is, when the trigger portion 51 is located at the rearmost swing position and the piston 52 is moved to the rearmost moving position, the rear end portion of the inner peripheral surface of the sliding cylinder portion 73 is the recessed portion 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 inner peripheral surface of the piston main body 72 and the outer peripheral surface of the piston guide 62.
As a result, the inside of the storage chamber 53b is passed between the inner peripheral surface of the piston main body 72 and the outer peripheral surface of the piston guide 62, the inside of the piston main body 72, the guide hole 62a, 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 portion 51 is operated for the first time, the air in the storage chamber 53b can be efficiently discharged into the container body A.

Further, when the storage chamber 53b is filled with the contents, a residual pressure is generated in the storage chamber 53b when the trigger portion 51 is swung to the rearmost swing position, and the residual pressure ejects the trigger portion 51. "Dripping" may occur in which the contents are suddenly discharged from the hole 4. According to the present embodiment, even if a residual pressure is generated in the storage chamber 53b, the residual pressure is applied between the inner peripheral surface of the piston main body 72 and the outer peripheral surface of the piston guide 62, and in the piston main body 72. Since it can be collected in the container body A through the guide hole 62a, the piston guide 62, and the collection passage 43, it is possible to suppress the dripping from the ejection hole 4 due to the residual pressure and improve the liquid drainage.
In this embodiment, the pressure accumulator valve 124 also has the effect of suppressing dripping. Therefore, the above-mentioned action and effect become more remarkable in the direct pressure type trigger type liquid ejector which does not use the accumulator valve 124.

In the trigger portion 51, the front and back surfaces face in the left-right direction, and a pair of side plate portions 81 arranged at intervals in the left-right direction, and the front and back surfaces face in the front-rear direction, and the main plate connects the pair of side plate portions 81 to each other. The unit 80 and the like are provided. The main plate portion 80 connects the front end edges of the pair of side plate portions 81 to each other in the left-right direction. The main plate portion 80 is not limited to such an aspect, and each arbitrary portion of the pair of side plate portions 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 concavely curved toward the rear when viewed from the left-right direction. The main plate portion 80 and the pair of side plate portions 81 are integrally formed.

At the upper ends of the pair of side plate portions 81, a pair of connecting plate portions 82 extending upward to the side of the injection cylinder portion 11 and sandwiching the injection cylinder portion 11 from the left-right direction are formed. The pair of connecting plate portions 82 are provided with a rotating shaft portion 83 so as to project outward in the left-right direction. The rotating shaft portion 83 is rotatably supported by a bearing portion provided on the upper plate member 84 that covers the upper part of the injection cylinder portion 11. As a result, the trigger portion 51 can swing in the front-rear direction around the rotation shaft portion 83.

An opening 51a that penetrates the main plate 80 in the front-rear direction is formed in the upper portion of the main plate 80 in the trigger portion 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 protruding in the left-right direction toward the inside of the connecting cylinder 85 are formed on a portion of the inner peripheral surface of the connecting cylinder 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. As a result, the trigger portion 51 and the piston 52 are connected to each other.

The connecting portion 70 of the piston 52 is rotatably connected to the connecting shaft 86 around the axis thereof, and is movably connected to the connecting shaft 86 by a predetermined amount in the vertical direction. As a result, the piston 52 can move back and forth as the trigger portion 51 swings in the front-rear direction.

On both the left and right sides of the upper plate member 84, the elastic plate portions 54, which are formed in a circular arc shape that is convex forward when viewed from the left and right directions and extends below the injection cylinder portion 11, are integrally formed. There is. The elastic plate portion 54 is formed in an arc shape concentric with each other when viewed from the left-right direction, and includes a pair of leaf springs arranged in the front-rear direction.

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 sub leaf spring 54b.
The lower ends of the main leaf spring 54a and the sub leaf spring 54b are integrally connected via an arcuate folded-back portion 54c. A locking piece 54d is projected downward from the folded-back portion 54c, and the locking piece 54d is inserted into and engaged with the pocket portion 81a formed in the side plate portion 81 of the trigger portion 51 from above. ing.
As a result, the elastic plate portion 54 urges the trigger portion 51 forward via the locking piece 54d and the pocket portion 81a.

The upper end of the main plate 80 of the trigger portion 51 is in contact with the contact portion 20g of the connecting member 20, which will be described later, from behind by the urging of the elastic plate 54. As a result, the trigger portion 51 is positioned at the most forward swing position.
When the trigger portion 51 is pulled backward from the most forward swing position, the elastic plate portion 54 is elastically deformed so as to move the folded-back portion 54c rearward via the locking piece 54d. At this time, the elastic plate portion 54 is elastically deformed by the sub-leaf spring 54b more than the main leaf spring 54a.

Even when the trigger portion 51 is pulled backward, the locking piece 54d is pulled out from the pocket portion 81a upward until the trigger portion 51 reaches the rearmost swing position (rearmost moving position). The engaged state with the pocket portion 81a is maintained.

The connecting member 20 is located on the front side of the front end opening of the injection cylinder portion 11, and extends rearward from the facing plate portion 21 arranged to face the front end opening and the injection cylinder portion 21. A first tubular portion 22 fitted to the 11 and a second tubular portion 23 extending forward from the facing plate portion 21 are provided.
The second cylinder portion 23 is arranged at a position eccentric downward with respect to the central axis of the injection cylinder portion 11. An injection hole 25 is formed in a portion of the facing plate portion 21 located inside the second tubular portion 23. The injection hole 25 penetrates the facing plate portion 21 in the front-rear direction. Further, inside the second tubular portion 23, a communication passage 237 for communicating the injection hole 25 and the ejection hole 4 is formed. As a result, the inside of the second cylinder portion 23 communicates with the inside of the injection cylinder portion 11 through the communication passage 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 an ejection hole 4, a foam forming cylinder 33 provided in the nozzle body 220 and surrounding the ejection hole 4, and a foam forming cylinder 33 and an ejection cylinder 33 rotatably provided in the nozzle member 3. It has a switching portion 37 facing the hole 4 from the front, and a lid portion 38 rotatably provided on the nozzle member 3 and arranged in front of the switching portion 37.

The nozzle body 220 has an outer fitting cylinder portion 221 extending in the front-rear direction and externally fitted to the second cylinder portion 23, closing the front end portion of the outer fitting cylinder portion 221 and forming a ejection hole 4 in the center. The nozzle wall portion 222, the accumulator chamber 223 defined behind the nozzle wall portion 222, the accumulator valve 124 and the metal coil spring 225 housed in the accumulator chamber 223, and the front of the nozzle wall portion 222. A covering cylinder portion 228, which is projected from the above, is provided. The nozzle body 220 is connected to the injection cylinder portion 11 via the connecting member 20 because the outer fitting cylinder portion 221 is externally fitted to the second cylinder portion 23 of the connecting member 20.

The nozzle wall portion 222 has a foam-forming cylinder mounting cylinder portion 227 that projects forward from the nozzle wall portion 222. An ejection hole 4 is formed inside the foam-forming cylinder mounting cylinder portion 227.
The covering cylinder portion 228 is arranged on the front side of the nozzle wall portion 222, and surrounds the foam-forming cylinder mounting cylinder portion 227 and the foam-forming cylinder 33 from the outside.

The accumulator valve 124 is urged forward by the coil spring 225 and seats on the valve seat portion 224 formed on the rear surface of the nozzle wall portion 222 to close the ejection hole 4. A small-diameter piston portion 124a is formed at the rear portion of the accumulator valve 124, and a large-diameter piston portion 124b is formed at the front portion of the accumulator valve 124. The pressure accumulator valve 124 applies the pressure of the liquid introduced from the injection hole 25 and the communication passage 237 to both piston portions 124a and 124b. When this pressure exceeds a certain level, the pressure accumulator valve 124 retracts due to the difference in the pressure receiving areas of both piston portions 124a and 124b, and the ejection hole 4 is opened.

The foam forming cylinder 33 is arranged on the front side of the nozzle wall portion 222 and extends in the front-rear direction. The foam-forming cylinder 33 is fitted onto the foam-forming cylinder mounting cylinder portion 227. The front end portion of the foam forming cylinder 33 has a smaller diameter than the portion other than the front end portion. The front end portion of the foam-forming cylinder 33 is located on the front side of the foam-forming cylinder mounting cylinder portion 227. As shown in FIGS. 3 and 5, the inner diameter of the front end front portion 33b of the front end portion of the foam forming cylinder 33 is larger than the inner diameter of the front end rear portion 33c.

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

As shown in FIGS. 3 and 4, the switching portion 37 is fitted in the covering cylinder portion 228. The switching portion 37 is inserted into the covering cylinder portion 228 from the front and is locked with the covering cylinder portion 228. That is, the switching portion 37 is locked to the nozzle body 220 in a state of facing the foam forming cylinder 33 and the ejection hole 4 from the front.
The switching unit 37 includes a switching unit main body 37a facing the foam forming cylinder 33 and the ejection hole 4 from the front, a switching unit connecting piece 37b projecting upward from the switching unit body 37a, and a switching unit projecting downward from the switching unit body 37a. It has a part operation piece 37c and.

The switching portion main body 37a has a plate shape, and a pair of plate surfaces face in the front-rear direction. The rear surface of the switching portion main body 37a comes into contact with the front end opening edge of the foam forming cylinder 33. The switching portion main body 37a has a switching portion protruding cylinder 37e that projects rearward from the rear surface of the switching portion main body 37a. The switching portion projecting cylinder 37e is inserted into the front end front portion 33b of the foam forming cylinder 33. The switching portion main body 37a is formed with a hole portion 37d that penetrates the switching portion main body 37a in the front-rear direction. That is, the switching portion 37 has a hole portion 37d. The hole portion 37d is located in the switching portion projecting cylinder 37e and is arranged coaxially with the ejection hole 4.

In the present embodiment, the inner diameter of the hole 37d is constant over the entire length in the front-rear direction. As shown in FIG. 3, when the switching portion 37 faces the foam forming cylinder 33 and the ejection hole 4 from the front, the hole portion 37d is the injection range of the liquid to be ejected forward through the ejection hole 4 and the foam forming cylinder 33. Narrow.

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

The switching portion operation piece 37c projects downward from the front end portion of the covering cylinder portion 228. The size of the switching unit operating piece 37c in the left-right direction is smaller than the size of the switching unit main body 37a in the left-right direction. The switching portion operation piece 37c is detachably fitted to the front end portion of the covering cylinder portion 228. In the present embodiment, the switching portion operating piece 37c is detachably locked to the front end portion of the covering cylinder portion 228 via a pair of switching portion locking pieces 37f protruding in the left-right direction from the switching portion operating piece 37c. .. The user of the trigger type liquid ejector 1 can rotate the switching unit 37 by operating the switching unit operating piece 37c.

More specifically, by operating the switching unit operation piece 37c, as shown in FIGS. 3 and 4, the switching unit 37 faces the foam forming cylinder 33 and the ejection hole 4 from the front (closed state), and FIG. As shown, it is possible to switch between a state in which the switching unit 37 does not face the foam forming cylinder 33 and the ejection hole 4 from the front (open state). When the switching unit 37 is opened, the switching unit main body 37a and the switching unit operating piece 37c are located above the covering cylinder portion 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 inside the covering cylinder portion 228. The lid portion 38 is inserted into the covering cylinder portion 228 from the front and is locked with the covering cylinder portion 228. That is, the lid portion 38 is locked to the nozzle body 220 with the hole portion 37d covered from the front.
As shown in FIGS. 1 to 5, the lid portion 38 is arranged in front of the switching portion 37, and has a lid portion main body 38a facing the hole portion 37d from the front and a plug portion protruding rearward from the lid portion main body 38a. It has a 38d, a lid connecting piece 38b protruding upward from the lid main body 38a, and a lid operating piece 38c protruding downward from the lid main body 38a.

The lid body 38a has a plate shape, and a pair of plate surfaces face in the front-rear direction. The rear surface of the lid portion body 38a comes into contact with the front surface of the switching portion 37. The lid portion main body 38a is detachably fitted to the front end portion of the covering cylinder portion 228. In the present embodiment, the lid body 38a is detachably locked to the front end of the covering cylinder 228 via a pair of lid locking pieces 38g protruding from the lid body 38a in the left-right direction (FIG. FIG. 4).

The plug portion 38d is a columnar shape extending rearward from the rear surface of the lid portion main body 38a. The plug portion 38d is inserted into the hole portion 37d. The rear end portion of the plug portion 38d faces the ejection hole 4 from the front and comes into contact with the ejection hole 4. That is, the plug portion 38d can close the ejection hole 4. In the present embodiment, the plug portion 38d has a columnar plug portion main body 38e extending rearward from the rear surface of the lid main body 38a and a plurality of plug portion ribs 38f arranged on the outer peripheral surfaces of the plug portion main body 38e at intervals. And have. The height at which the plug rib 38f protrudes from the outer peripheral surface of the plug body 38e decreases from the rear surface of the lid body 38a toward the rear.

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

As shown in FIG. 2, the lid operation piece 38c projects downward from the front end portion of the covering cylinder portion 228. The lower end of the lid operation piece 38c projects downward from 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 body 38a in the left-right direction. As shown in FIGS. 1 to 4, the lid operation piece 38c has a cover portion 38h projecting 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 portion 38 by operating the lid portion operating piece 38c. By providing the cover portion 38h, it is possible to prevent the switching portion 37 from being unintentionally rotated together with the lid portion 38 when the lid portion 38 is rotated.

More specifically, by operating the lid operation piece 38c, as shown in FIGS. 1 and 2, the lid 38 faces the hole 37d and the ejection hole 4 from the front (closed state), and FIGS. 3 and 3 and FIG. As shown in 4, it is possible to switch between a state in which the lid portion 38 does not face the hole portion 37d and the ejection hole 4 from the front (open state). When the lid 38 is opened, the lid body 38a and the lid operating 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 described.
As shown in FIGS. 3 and 4, the lid 38 is first opened. When the trigger portion 51 is pulled backward against the urging force of the elastic plate portion 54, the trigger portion 51 swings backward, and the piston 52 retracts with this swing. As a result, 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, the communication between the inside of the injection cylinder portion 11 and the inside of the container body A through the supply passage L1 is cut off, the inside of the injection cylinder portion 11 is pressurized, and the injection hole 25 is pressed. The insides of the small-diameter piston portion 124a and the large-diameter piston portion 124b in the accumulator valve 124 are also pressurized through the communication passage 237.

At this time, since the inner diameter of the large-diameter piston portion 124b is larger than the inner diameter of the small-diameter piston portion 124a, the pressure receiving area is different between the small-diameter piston portion 124a and the large-diameter piston portion 124b. Pressure acts on. When this pressure becomes equal to or higher than a predetermined pressure, the accumulator valve 124 is retracted against the forward urging force of the coil spring 225, and the front end portion of the accumulator valve 124 is separated from the valve seat portion 224, whereby the injection cylinder portion 11 The inside of the injection hole 25 and the ejection hole 4 communicate with each other through the injection hole 25, the communication passage 237, the inside of the accumulator valve 124, and the gap between the front end portion of the accumulator valve 124 and the valve seat portion 224, and the liquid flows from the ejection hole 4. It is injected into the foam forming cylinder 33.

At this time, the inside of the foam making cylinder 33 becomes a negative pressure, the outside air (air) is introduced into the foam making cylinder 33 through the outside air introduction hole 33a, and the liquid is mixed with the outside air in the foam making cylinder 33 and foams to foam. It becomes a shape and is sprayed from the front end opening of the foam forming cylinder 33. The liquid injected into the foam-forming cylinder 33 from the ejection hole 4 is in the form of mist. For example, the mist-like liquid collides with the inner peripheral surface of the foam-forming cylinder 33 in the foam-forming cylinder 33. As the flow of liquid is disturbed, it is agitated with the outside air and becomes foamy.

When the operation of pulling the trigger portion 51 is stopped, the supply of the liquid from the storage chamber 53b into the injection cylinder portion 11 through the connecting passage L2 of the vertical supply cylinder portion 10 is stopped. At this time, the accumulator valve 124 is advanced by the forward urging force of the coil spring 225, the front end portion of the accumulator valve 124 is seated on the valve seat portion 224 and closes the pressure accumulator valve 124, and the inside of the injection cylinder portion 11 and the ejection hole 4 are connected. Cut off communication.
Then, the trigger portion 51 is urged forward by the elastic restoring force of the elastic plate portion 54 to return to the original position, and the piston 52 advances accordingly. Therefore, a negative pressure is generated in the storage chamber 53b, and the 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 liquid pushes up the check valve 36 to open the valve, and is introduced into the storage chamber 53b through the connecting passage L2. This makes it possible to prepare for the next injection of liquid.

In the trigger type liquid ejector 1 of the present embodiment described above, by rotating the switching portion 37, the switching portion 37 is switched between a state in which the switching portion 37 does not face the foam forming cylinder 33 and the ejection hole 4 from the front (open state). It is possible to switch between a state in which the portion 37 faces the foam forming cylinder 33 and the ejection hole 4 from the front (closed state).

As shown in FIG. 5, when the switching portion 37 is opened and the trigger portion 51 is swung backward, the liquid in the container body A is charged into the vertical supply cylinder portion 10, the injection cylinder portion 11, the ejection hole 4, and the structure. It is sprayed in a wide range forward through the foam cylinder 33.
As shown in FIG. 3, when the switching portion 37 is closed and the trigger portion 51 is swung backward, the liquid in the container body A is charged into the vertical supply cylinder portion 10, the injection cylinder portion 11, the ejection hole 4, and the structure. It is sprayed forward in a narrow range through the foam cylinder 33 and the hole 37d.
That is, the liquid injection range can be switched (adjusted) between the open state and the closed state of the switching unit 37. Therefore, according to the present embodiment, the injection range of the liquid can be easily changed.

Further, by rotating the lid portion 38, it is possible to switch between a state in which the ejection hole 4 is closed by the plug portion 38d of the lid portion 38 and a state in which the ejection hole 4 is opened.
Therefore, after the liquid is ejected, the ejection hole 4 can be closed by the lid 38. As a result, even if the liquid adheres to the inner surface of the ejection hole 4 and remains when the liquid is ejected from the ejection hole 4, the adhered liquid dries while the trigger type liquid ejector 1 is stored. It can be suppressed from solidifying. Therefore, it is possible to suppress that the ejection hole 4 is blocked, the injection direction of the liquid is changed, or the foam quality of the injected liquid is changed.
Further, when the liquid is ejected next time, the ejection hole 4 can be opened by a simple operation of rotating the lid portion 38.

Further, in the present embodiment, the switching portion 37 is locked to the nozzle body 220 in a state of facing the foam forming cylinder 33 and the ejection hole 4 from the front. Further, the lid portion 38 is locked to the nozzle body 220 with the hole portion 37d covered from the front.
In this case, since the switching portion 37 is locked with the nozzle body 220, the function of narrowing the liquid injection range by the hole portion 37d of the switching portion 37 is stabilized. Further, since the lid 38 is locked with the nozzle body 220, the function of suppressing the solidification of the liquid adhering to the hole 37d, the foam forming cylinder 33, the ejection hole 4, etc. is stabilized by the lid 38.

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

<Second Embodiment>
Next, the trigger type liquid ejector 100 of the second embodiment of the present invention will be described with reference to FIGS. 6 to 10. In the second embodiment, the same components as those in the first embodiment are designated by 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 in which the switching portion 37 is in the closed state and the lid portion 38 is in the closed state. 8 and 9 are enlarged views of the vicinity of the nozzle member 3 in which the switching portion 37 is in the closed state and the lid portion 38 is in the open state. FIG. 10 is an enlarged view of the vicinity of the nozzle member 3 in which the switching portion 37 is in the open state and the lid portion 38 is in the open state.

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

According to the trigger type liquid ejector 100 of the present embodiment described above, the same operation and effect as those of the above-described embodiment can be obtained.

Further, in the present embodiment, as shown in FIG. 7, the switching portion operating piece 37c is exposed forward with the switching portion 37 and the lid portion 38 closed. Therefore, by operating the switching unit operating piece 37c to open the switching unit 37 from the state where the lid 38 and the switching unit 37 are closed, the lid 38 is pushed up and rotated together with the switching unit 37. As shown in No. 10, the liquid can be sprayed over a wide range. That is, even when the lid 38 is closed, the liquid can be sprayed over a wide range by a single operation (one action), and the operability is good.

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

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

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

According to the trigger type liquid ejector 110 of the present embodiment described above, the same operation and effect as those of the above-described embodiment can be obtained.

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

In the first embodiment and the second embodiment, an example in which the lid locking piece 38g protrudes from the lid main body 38a in the left-right direction has been given, 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 protrudes in the left-right direction from the lid operating piece 38c and is detachably locked to the front end portion of the covering cylinder portion 228. May be good.

In the first to third embodiments, the accumulator type trigger type liquid ejectors 1, 100, 110 provided with the accumulator valve 124 have been described, but the invention is not limited to the accumulator type. That is, the present invention can also be applied to a direct pressure type trigger type liquid ejector not provided with a pressure accumulator valve 124.

In the first to third embodiments, an example is given in which the outside air introduction hole 33a of the foam forming cylinder 33 is provided through the cylinder wall of the foam forming cylinder 33, but the present invention is not limited to this configuration. For example, the outside air introduction hole may have a groove shape extending over the inner peripheral surface and the rear end surface of the cylinder wall of the foam cylinder 33, or a notch shape in which the cylinder wall of the foam cylinder 33 is cut out from the rear end surface toward the front. Etc. may be used.

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

1,100,110 ... Trigger type liquid ejector, 2 ... Ejector body, 3 ... Nozzle member, 4 ... Ejection hole, 10 ... Vertical supply cylinder, 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 Shaft, C2 ... Second rotation shaft

Claims (4)

The ejector body attached to the container and
A nozzle member provided in front of the ejector main body and having an ejection hole for ejecting a liquid in the container is provided.
The ejector body is
A vertical supply cylinder that extends in the vertical direction and sucks up the liquid in the container,
A trigger portion is provided in front of the vertical supply cylinder portion so as to be swingably arranged rearward in a forward urged state, and the liquid is ejected from the inside of the vertical supply cylinder portion by swinging the trigger portion rearward. It has a trigger mechanism that distributes toward the hole side,
The nozzle member is
The nozzle body having the ejection hole and
A foam cylinder provided on the nozzle body and surrounding the ejection hole,
A switching portion rotatably provided on the nozzle member and facing the foam cylinder and the ejection hole from the front,
It has a lid portion rotatably provided on the nozzle member and arranged in front of the switching portion.
The foam-forming cylinder has an outside air introduction hole for introducing outside air inside the foam-forming cylinder.
The switching portion has a hole portion for narrowing the injection range of the liquid to be ejected forward through the ejection hole and the foam forming cylinder.
The lid portion has a plug portion that is inserted into the hole portion and can close the ejection hole.
Trigger type liquid ejector. The switching portion is locked to the nozzle body in a state of facing the foam cylinder and the ejection hole from the front.
The lid portion is locked to the nozzle body in a state of covering the hole portion from the front.
The trigger type liquid ejector according to claim 1. The first rotation axis, which is the rotation center axis of the switching portion, and the second rotation axis, which is the rotation center axis of the lid portion, are arranged coaxially with each other.
The trigger type liquid ejector according to claim 1 or 2. The switching unit has a switching unit operating piece capable of rotating the switching unit.
The switching portion operating piece projects from the lid portion when the nozzle member is viewed from the front.
The trigger type liquid ejector according to any one of claims 1 to 3.

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