JP2019171338A - Trigger type liquid ejection device - Google Patents

Abstract

To provide a trigger type liquid ejection device which can change a mode of foamy liquid ejected from a foaming cylinder and suppresses that liquid is erroneously ejected by unexpected external force applied to a trigger part.SOLUTION: A trigger type liquid ejection device includes a nozzle main body 22 which has a valve chamber 45 and an ejection hole 26a, a valve body 23 which communicates and intercepts the valve chamber and the ejection hole, a foaming cylinder 33 which surrounds the ejection hole and a switching part 34 which changes a mode of foamy liquid ejected from the foaming cylinder. Therein, either one side of an ejector main body 11 and the nozzle main body is provided with a first sliding part 19d formed of a front side communication part 19g communicated with the valve chamber, either the other side is formed of a rear side communication part 46h communicated with an injection cylinder 13 interior and is provided with a second sliding part 46e sliding with the first sliding part, and the nozzle main body is moved to the ejector main body while causing the first sliding part and the second sliding part to slide with each other between an ejection-possible position on which the rear side communication part and the front side communication part are communicated with each other and an ejection-regulation position on which the communication of the rear side communication part and the front side communication part is intercepted.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a trigger type liquid ejector.

Conventionally, a trigger type liquid ejector described in Patent Document 1 below is known. This trigger type liquid ejector includes an ejector body mounted on a container body in which a liquid is stored, and a nozzle member that is disposed on the front side of the ejector body and has an ejection hole that ejects liquid. .
The ejector main body extends in the vertical direction and sucks up the liquid in the container body, the vertical supply cylinder part is disposed in front of the vertical supply cylinder part, and the injection cylinder part guides the liquid in the vertical supply cylinder part to the ejection hole, It has a trigger part arranged in front of the vertical supply cylinder part so as to be movable in the forward biased state, and by moving the trigger part to the rear side, the liquid is supplied from the inside of the vertical supply cylinder part to the inside of the injection cylinder part. And a trigger mechanism that circulates toward the vehicle.
The nozzle member is disposed in front of the injection cylinder and has a nozzle body that communicates with the ejection hole and an outside air that is disposed in front of the ejection hole, surrounds the ejection hole, and introduces outside air to the inside. A foam-forming cylinder in which an introduction hole is formed, and a lid that closes the ejection hole so as to be openable.

  In this trigger type liquid ejector, when the trigger portion is moved rearward, the liquid passes through the vertical supply cylinder portion, the injection cylinder portion, the ejection hole, and the foam-forming cylinder in this order. In this process, when the liquid enters the foam making cylinder, the outside air is introduced into the foam making cylinder through the outside air introduction hole, so that the liquid is mixed with the outside air in the foam making cylinder and foamed. It is ejected from the front end opening of the foam tube. And when not in use, even if an unexpected external force is applied to the trigger portion by closing the ejection hole with the lid, it is possible to prevent the liquid from being ejected.

By the way, in the trigger type liquid ejector comprised as mentioned above, there exists a request | requirement about making aspects, such as an ejection range or a shape, of the foam-like liquid ejected from the front-end opening of a foaming cylinder variable. .
As a configuration for meeting such a demand, the nozzle member is positioned in front of the front end opening of the foam-forming tube, a switching position for changing the above-described aspect, and an open position spaced from the front-end opening of the foam-forming tube It is conceivable to provide a switching unit that is movably disposed between the two.

JP 2017-47350 A

  However, in this case, since the nozzle member includes the switching unit, it is structurally difficult to further include the above-described lid body on the nozzle member.

  The present invention has been made in view of the above-described circumstances, and it is possible to change the mode of the foam-like liquid ejected from the front end opening of the foam-forming cylinder, and it is a surprise that has been added to the trigger portion. It is an object of the present invention to provide a trigger type liquid ejector that can prevent liquid from being accidentally ejected by an external force.

In order to solve the above problems, the present invention proposes the following means.
A trigger type liquid ejector according to the present invention includes an ejector body mounted on a container body in which a liquid is accommodated, and a nozzle provided on the front side of the ejector body and formed with an ejection hole for ejecting liquid. A vertical supply cylinder part that extends in the vertical direction and sucks up the liquid in the container body, and is disposed in front of the vertical supply cylinder part, and the liquid in the vertical supply cylinder part An injection cylinder part that guides the nozzle to the ejection hole, and a trigger part that is disposed in front of the vertical supply cylinder part in a forward-biased state so as to be movable rearward. A trigger mechanism that circulates from the inside of the vertical supply cylinder part to the side of the ejection hole through the inside of the injection cylinder part, and the nozzle member communicates the inside of the injection cylinder part and the ejection hole, and A nozzle body in which an ejection hole is formed, and the valve chamber A valve body configured to block communication between the valve chamber and the ejection hole and to communicate the valve chamber and the ejection hole when an internal pressure of the valve chamber exceeds a predetermined value; and A foam-forming cylinder which is disposed in front and has an outside-air introduction hole which surrounds the ejection hole and introduces outside air inside; and is located in front of a front end opening of the foam-making cylinder, and the foam-making cylinder A switching portion that is movably disposed between a switching position that changes the mode of the foam-like liquid ejected from the front end opening and an open position that is separated from the front end opening of the foam-forming cylinder. Any one of the ejector main body and the nozzle main body is disposed between the injection cylinder portion and the valve chamber, and a first sliding member formed with a front side communication portion communicating with the valve chamber is formed. A contact portion, one of which is disposed between the injection tube portion and the valve chamber, and the injection tube A rear communication portion that communicates with the first sliding contact portion is formed, and a second sliding contact portion that is in sliding contact with the first sliding contact portion is provided, and the front communication portion and the rear communication portion communicate with each other in the nozzle body. While making the first slidable contact portion and the second slidable contact portion slidably contact each other between an ejectable position and an ejection restriction position that blocks communication between the front communication portion and the rear communication portion, It is arranged to be movable with respect to the ejector body.

  According to the trigger type liquid ejector according to the present invention, when the trigger portion is moved backward in a state where the nozzle main body is located at the ejectable position, the liquid flows from the inside of the vertical supply cylinder portion to the inside of the injection cylinder portion, the rear side communication portion. When the internal pressure of the valve chamber exceeds a predetermined value, the valve body is activated and opened, and the inside of the injection tube portion and the ejection hole communicate with each other through the valve chamber, so that the liquid It is ejected from the ejection hole. When this liquid enters the foam cylinder, the inside of the foam cylinder becomes negative pressure, and outside air is introduced into the foam cylinder from the outside air introduction hole formed in the foam cylinder. As a result, the liquid is mixed with the outside air in the foaming cylinder to be foamed, and is foamed and ejected from the front end opening of the foaming cylinder. Note that the foaming of the liquid occurs particularly when a mixed fluid of the liquid and the outside air collides with the inner peripheral surface of the foam-forming cylinder.

When the switching unit is located at the open position, the foam-like liquid ejected from the front end opening of the foam-forming cylinder is ejected to the switching unit without changing the mode, and the switching unit is located at the switching position. When doing so, the foam-like liquid from the front end opening of the foam-forming cylinder is ejected in a state in which the mode is changed by the switching unit.
Further, in the state where the nozzle body is located at the ejection restriction position, the communication between the front side communication part and the rear side communication part is blocked, so that liquid is not supplied from the inside of the injection cylinder part to the valve chamber, and the trigger part is Due to the unexpected external force applied, the liquid is not ejected from the ejection hole.
Also, as a means to prevent accidental ejection of liquid by accidental external force applied to the trigger section, a front communication section communicating with the valve chamber is formed instead of a lid that closes the ejection hole from the front. The first sliding contact portion is formed, and the rear side communication portion communicating with the inside of the injection cylinder portion is formed, and the second sliding contact portion is slidably contacted with the first sliding contact portion. It is possible to dispose the two sliding contact portions on the inner side of the connecting portion between the ejector body and the nozzle body, away from the switching portion located in front of the front end opening of the foam-forming cylinder, and the nozzle member becomes the switching portion. Even if provided, the above-mentioned erroneous ejection preventing means can be easily arranged.
In addition, since the nozzle body moves with respect to the ejector main body while bringing the first sliding contact portion and the second sliding contact portion into sliding contact with each other, the nozzle body moves between the jettable position and the jetting restriction position. It is possible to prevent deterioration in operability due to the adoption of the first sliding contact portion and the second sliding contact portion in place of the lid as the erroneous ejection preventing means.

  Here, one of the first slidable contact portion and the second slidable contact portion may be formed in a cylindrical shape, and either of the other may be rotatably fitted therein.

  In this case, since one of the first sliding contact portion and the second sliding contact portion is formed in a cylindrical shape, and the other is rotatably fitted therein, for example, a nozzle Ensuring easy and reliable sealing between the injection cylinder and the valve chamber when the main body is located at the ejection restriction position, or suppressing rattling of the nozzle body and ejector body Thus, the above-described effects can be reliably achieved with a simple configuration.

  Further, the nozzle body restricts rearward movement of the trigger part by contacting or approaching the trigger part when the nozzle body is located at the ejection restriction position, and the nozzle body A stopper member that separates from the trigger portion and allows the rearward movement of the trigger portion when located at the possible position may be provided.

In this case, not only the first sliding contact portion and the second sliding contact portion but also a stopper member is provided as the above-described erroneous ejection preventing means, so that liquid is accidentally ejected by an unexpected external force applied to the trigger portion. Can be reliably suppressed.
In addition, since the stopper member restricts the rearward movement of the trigger portion by contacting or approaching the trigger portion, the stopper member can be disposed away from the switching portion, and the nozzle member can be disposed at the switching portion. Even if it is provided, the stopper member can be easily disposed.
In addition, since the stopper member is disposed on the nozzle body, the stopper member also moves behind the trigger portion as the nozzle body is moved between the ejectable position and the ejection restricting position with respect to the ejector body. It is possible to move between the position where the movement is permitted and the position where the rearward movement of the trigger portion is restricted, and it is possible to prevent deterioration in operability due to the provision of the stopper member.

  Further, the trigger mechanism includes a piston that moves in the front-rear direction in conjunction with the trigger portion, and a cylinder in which the piston is inserted and the inside communicates with the vertical supply cylinder portion, and the stopper member is A restriction portion that contacts or approaches the trigger portion from the rear of the trigger portion and contacts or approaches the cylinder from the front of the cylinder when the nozzle body is positioned at the ejection restriction position. Also good.

  In this case, when the nozzle body is positioned at the ejection restriction position, the restriction part is disposed in the front-rear direction gap between the trigger part and the cylinder, so the trigger type liquid ejector is stored or displayed. The stopper member can be prevented from being bulked by protruding from the trigger type liquid ejector, and the stopper member can be made compact.

Further, the switching unit may narrow a foaming range of the foam-like liquid ejected from the front end opening of the foam-forming cylinder when positioned at the switching position.
In this case, when the switching unit is positioned at the switching position, the range of foam-like liquid ejected from the front end opening of the foam-forming cylinder is narrowed, so that the operability can be improved.

  According to the present invention, it is possible to change the mode of the foam-like liquid ejected from the front end opening of the foam-forming cylinder, and the liquid is accidentally ejected by an unexpected external force applied to the trigger portion. Can also be suppressed.

It is a longitudinal section of the trigger type liquid ejector shown as a 1st embodiment concerning the present invention. It is the figure which looked at the trigger type liquid ejector shown in FIG. 1 from the front. It is a partial enlarged view of the trigger type liquid ejector shown in FIG. It is an AA arrow directional cross-sectional view of the trigger type liquid ejector shown in FIG. It is a figure which shows the state which has located the nozzle main body in the ejection regulation position from the state shown in FIG. It is a longitudinal cross-sectional view of the trigger type liquid ejector shown as 2nd Embodiment which concerns on this invention. It is the figure which looked at the trigger type liquid ejector shown in FIG. 6 from the front. FIG. 8 is a top view of a portion of the stopper member shown in FIGS. 6 and 7 that is located below an intermediate portion in the vertical direction of the connecting portion. It is a longitudinal cross-sectional view of the trigger type liquid ejector shown as 3rd Embodiment concerning this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The trigger type liquid ejector 1 according to this embodiment is mounted on a container body W in which a liquid is accommodated, and has an ejector body 11 having a vertical supply cylinder portion 12 that sucks up the liquid in the container body W, and a liquid And a nozzle member 20 in which an ejection hole 26a is formed.
Here, in this embodiment, the direction along the central axis O1 of the vertical supply cylinder portion 12 is referred to as the vertical direction, and the container body W side is referred to as the lower side along the vertical direction, and the opposite side is referred to as the upper side. When viewed from the vertical direction, the side where the nozzle member 20 is located with respect to the vertical supply cylinder 12 is referred to as a front side, and the opposite side is referred to as a rear side. A direction orthogonal to the front-rear direction when viewed from the vertical direction is referred to as a left-right direction.

  The ejector body 11 includes a vertical supply cylinder portion 12 extending in the vertical direction, an injection cylinder portion 13 that is disposed in front of the vertical supply cylinder portion 12 and guides the liquid in the vertical supply cylinder portion 12 to the ejection holes 26a. A trigger mechanism T having a nozzle fitting cylinder part 19 for connecting the injection cylinder part 13 and the nozzle member 20, and a trigger part 15 disposed in front of the vertical supply cylinder part 12 so as to be movable rearward in a forward biased state. And a cover body C that integrally covers the vertical supply cylinder part 12, the injection cylinder part 13, and a cylinder 14a described later from above, from the rear, and in the left-right direction.

  The vertical supply cylinder portion 12 is formed in a multistage cylindrical shape including a large diameter portion 12a and a small diameter portion 12b extending upward from the large diameter portion 12a. A mounting cylinder portion 16 to be mounted on the mouth portion of the container body W is attached to the large diameter portion 12a. A pipe 17 is fitted in the small diameter portion 12b. The lower end opening of the pipe 17 is located at the bottom in the container body W when the mounting cylinder 16 is attached to the mouth. A suction valve 18 is disposed in the upper end portion of the small diameter portion 12b. The suction valve 18 is closed when the inside of a cylinder 14a, which will be described later, is pressurized to block communication between the inside of the pipe 17 and the inside of the injection cylinder part 13, and is opened when the pressure is reduced. The inside of the injection cylinder part 13 is connected.

The injection cylinder 13 extends forward from the vertical supply cylinder 12, and the inside communicates with the inside of the vertical supply cylinder 12.
The trigger part 15 is extended downward from the injection cylinder part 13, and is arrange | positioned so that a movement back is possible in a front biased state. The trigger portion 15 extends gradually toward the front as it goes from the top to the bottom.

  The trigger mechanism T causes the liquid to be introduced from the inside of the vertical supply cylinder part 12 into the injection cylinder part 13 and to be distributed from the inside of the injection cylinder part 13 toward the ejection hole 26a by the movement of the trigger part 15 to the rear. The trigger mechanism T has a piston 14b that moves in the front-rear direction in conjunction with the trigger portion 15, a cylinder 14a into which the piston 14b is inserted and communicated with the inside of the vertical supply cylinder portion 12, and a trigger portion 15 attached to the front. And an elastic member 43 to be urged.

  The cylinder 14a extends in the front-rear direction and opens forward. The cylinder 14 a is formed separately from the vertical supply cylinder 12 and is assembled to the front surface of the vertical supply cylinder 12. A piston 14b is fitted in the cylinder 14a so as to be slidable back and forth from the front end opening toward the rear. A gap in the front-rear direction is provided between the opening edge of the front end of the cylinder 14 a and the rear portion of the trigger portion 15. A trigger portion 15 is connected to the front end of the piston 14b. As the trigger portion 15 moves back and forth, the piston 14b is moved back and forth relative to the cylinder 14a, whereby the internal pressure of the cylinder 14a is increased and decreased. The positions of the center portions of the cylinder 14a, the piston 14b, and the trigger portion 15 in the left-right direction coincide with each other.

  A pair of elastic members 43 are arranged so as to sandwich the injection cylinder 13 in the left-right direction. The upper end portion of each elastic member 43 is fixed to the injection cylinder portion 13 side, and the lower end portion of each elastic member 43 is fixed to the trigger portion 15.

  As shown in FIG. 3, the nozzle fitting cylinder portion 19 includes a first substrate 19 a whose front and rear surfaces face in the front-rear direction and closes the front end opening of the injection cylinder portion 13, and rearward from the rear surface of the first substrate 19 a. The first fitting tube 19b that protrudes toward the outside and is externally fitted to the injection tube portion 13, the second fitting tube 19c that protrudes forward from the front surface of the first substrate 19a, and the second fitting tube 19c that protrudes forward from the front surface of the first substrate 19a. A first sliding contact portion 19d protruding forward from a portion located inside the fitting cylinder 19c.

The first fitting cylinder 19 b is externally fitted to the front side portion of the injection cylinder part 13.
The first sliding contact portion 19d is formed in a cylindrical shape that extends in the front-rear direction and whose front end is closed. The first sliding contact portion 19d may be a middle shaft or the like.
The second fitting cylinder 19c and the first sliding contact portion 19d are disposed coaxially with the central axis O2 of the ejection hole 26a. In the first substrate 19a, a liquid outflow hole 19f is formed at a position facing the front end opening of the injection cylinder part 13, and the inside of the injection cylinder part 13 and the second fitting cylinder 19c communicate with each other through the liquid outflow hole 19f. ing.

The nozzle member 20 is disposed on the front side of the ejector body 11. The ejection hole 26a opens forward.
Hereinafter, when viewed from the front-rear direction, the direction intersecting the central axis O2 of the ejection hole 26a is referred to as the nozzle radial direction, and the direction around the central axis O2 is referred to as the nozzle circumferential direction.

The nozzle member 20 is disposed in the valve chamber 45 in which the inside of the injection cylinder portion 13 communicates with the ejection hole 26a, the nozzle body 22 in which the ejection hole 26a is formed, the valve chamber 45, and the valve chamber 45 and the ejection hole 26a. A valve body 23 that connects the valve chamber 45 and the ejection hole 26a when the internal pressure of the valve chamber 45 exceeds a predetermined value, and a coil spring 32 that biases the valve body 23 forward, A foam-forming cylinder 33 that is disposed in front of the ejection hole 26a and surrounds the ejection hole 26a, and a switching unit 34 that changes the mode of the foam-like liquid ejected from the front end opening of the foam-making cylinder 33. .
Hereinafter, the nozzle member 20 in the posture when the nozzle main body 22 is located at a jettable position to be described later will be described.

  The nozzle body 22 includes an inner nozzle 46 connected to the nozzle fitting cylinder portion 19 and an outer nozzle 47 that covers the inner nozzle 46.

  The inner nozzle 46 includes a third fitting cylinder 46a that is externally fitted to the second fitting cylinder 19c of the nozzle fitting cylinder portion 19, a second substrate 46b that closes the front end opening of the third fitting cylinder 46a, A first fixed cylinder 46c that protrudes forward from the outer peripheral edge of the two substrates 46b and to which the outer nozzle 47 is fixed, and a front portion of the second substrate 46b that is located on the inner side of the first fixed cylinder 46c. The protruding cylinder cylinder 46d, the second sliding contact portion 46e protruding rearward from the rear surface of the second substrate 46b, and externally fitted to the first sliding contact portion 19d of the nozzle fitting cylindrical portion 19, and the second substrate 46b A guide projection 46f protruding forward from a portion located inside the cylinder cylinder 46d on the front surface of the cylinder cylinder 46d.

The third fitting cylinder 46a, the first fixed cylinder 46c, the cylinder cylinder 46d, the second sliding contact portion 46e, and the guide projection 46f are each arranged coaxially with the central axis O2.
The first slidable contact portion 19d and the second slidable contact portion 46e are disposed on the inner side in the nozzle radial direction of the second fitting cylinder 19c of the nozzle fitting cylinder portion 19. The inner diameter of the second sliding contact portion 46e is smaller than the inner diameter of the cylinder tube 46d and larger than the outer diameter of the rear end portion of the guide projection 46f.
A communication hole 46g is formed in the second substrate 46b so as to communicate the inside of the first fixed cylinder 46c and the inside of the second sliding contact portion 46e. The communication hole 46g is formed in a portion of the second substrate 46b located between the outer peripheral surface of the guide protrusion 46f and the inner peripheral surface of the second sliding contact portion 46e. Of the rear surface of the second substrate 46b, the central portion in the nozzle radial direction is in contact with the front end surface of the first sliding contact portion 19d, and the portion where the communication hole 46g is opened is relative to the front end surface of the first sliding contact portion 19d. And are facing in the front-rear direction.

The outer nozzle 47 includes a second fixed cylinder 47a that is externally fitted to the first fixed cylinder 46c of the inner nozzle 46, a nozzle outer cylinder 47b that surrounds the second fixed cylinder 47a from the outside in the nozzle radial direction, and a second A valve seat portion 25 having an annular valve seat plate 24 that is disposed inside the fixed tube 47a and on which a front end portion 23e of a valve main body 23a described later is seated, and protrudes rearward from the valve seat plate 24 and a first fixed tube 46c. A sliding cylinder portion 30 fitted in the front end portion, a nozzle tip 28 projecting forward from the valve seat plate 24, and a cap mounting projecting forward from the valve seat plate 24 and surrounding the nozzle tip 28 from the outside in the nozzle radial direction. The cylinder part 31 and the coating | coated cylinder part 29 which protrudes ahead from the valve-seat board 24 and encloses the cap mounting cylinder part 31 from the outer side of a nozzle radial direction are provided.
The second fixed cylinder 47a, the nozzle outer cylinder 47b, the valve seat plate 24, the sliding cylinder part 30, the cap mounting cylinder part 31, and the covering cylinder part 29 are arranged coaxially with the central axis O2.

  The valve seat portion 25 includes a valve seat sliding cylinder 35 protruding rearward from the valve seat plate 24. The valve seat sliding cylinder 35 is arranged coaxially with the central axis O <b> 2 and has a smaller diameter than the sliding cylinder portion 30. The valve seat sliding cylinder 35 is disposed on the inner peripheral edge of the valve seat plate 24. The valve seat sliding cylinder 35 is formed with a plurality of communication holes 35a penetrating in the nozzle radial direction and opened rearward at intervals in the nozzle circumferential direction.

A nozzle cap 26 that covers the front end surface of the nozzle tip 28 from the front is fitted in the cap mounting cylinder portion 31. An ejection hole 26 a is formed in the front wall of the nozzle cap 26.
A nozzle communication groove 27 extending over the entire length in the front-rear direction is formed on the outer peripheral surface of the nozzle tip 28. The nozzle communication groove 27 communicates the ejection hole 26 a and the inside of the valve seat plate 24.

  Cutout portions 29 a and 29 b that are recessed rearward are formed at both upper and lower end portions of the front end opening edge of the covering cylinder portion 29. As shown in FIG. 2, among these notches 29 a and 29 b, the size of the upper notch 29 a located at the upper end of the covered cylinder 29 is in the lower end of the covered cylinder 29. It is larger than the size in the left-right direction of the lower notch 29b.

As shown in FIG. 3, the valve body 23 is disposed on the inner side of the first fixed cylinder 46c and coaxially with the central axis O2. That is, the inside of the first fixed cylinder 46c is a valve chamber 45 that communicates the inside of the injection cylinder part 13 and the ejection hole 26a and in which the valve body 23 is disposed.
The valve body 23 includes a cylindrical valve body 23a whose front end is closed and its rear end is opened, and a flange portion 23b that protrudes outward in the nozzle radial direction from an intermediate portion in the front-rear direction on the outer peripheral surface of the valve body 23a. And a seal tube portion 23c protruding forward from the front surface of the flange portion 23b.

  The front end portion 23e of the valve body 23a is disposed so as to be slidable in the front-rear direction within the valve seat sliding cylinder 35. The front end 23e of the valve body 23a gradually increases in diameter from the front end toward the rear. The rear end of the valve body 23a is fitted in the cylinder tube 46d so as to be slidable in the front-rear direction. A plurality of through-holes 23d are formed at intervals in the nozzle circumferential direction in a portion of the valve body 23a that is continuous from the front side to the flange portion 23b.

  The diameter of the seal cylinder portion 23c gradually increases toward the front. The seal tube portion 23c is disposed between the outer peripheral surface of the valve seat slide tube 35 and the inner peripheral surface of the slide tube portion 30, and is fitted in the slide tube portion 30 so as to be slidable in the front-rear direction. Yes. Regardless of whether the valve body 23 is seated on the valve seat plate 24 or separated from the valve seat plate 24, the inside of the seal cylinder portion 23c is always inside the valve body 23a through the communication hole 35a and the through hole 23d. Communicate with.

  The coil spring 32 is disposed inside the valve body 23a. A guide protrusion 46 f is inserted inside the coil spring 32. The coil spring 32 urges the valve body 23 forward to seat the front end 23e of the valve body 23a on the valve seat plate 24. Thus, the valve body 23 is disposed in the valve chamber 45 so as to be movable back and forth in a forward biased state.

The foam-forming cylinder 33 is located in front of the valve seat plate 24. The foam-forming cylinder 33 is externally fitted to the cap mounting cylinder part 31. The outer diameter of the foam-forming tube 33 is smaller than the inner diameter of the covering tube portion 29, and an annular space is provided between the outer peripheral surface of the foam-forming tube 33 and the inner peripheral surface of the covering tube portion 29.
A locking projection 36 is formed on the inner peripheral surface of the foam-forming tube 33 so as to protrude inward in the nozzle radial direction. A plurality of the locking protrusions 36 are arranged at intervals over the entire circumference of the foam-forming tube 33. The locking projection 36 is in contact with the opening edge of the front end of the cap mounting cylinder 31 from the front side.

  The foam-forming tube 33 is formed with an outside air introduction hole 37 for introducing outside air to the inside. The outside air introduction hole 37 penetrates the foam-forming cylinder 33 in the nozzle radial direction. The outside air introduction hole 37 is located in front of the cap mounting cylinder portion 31. The front end edge of the outside air introduction hole 37 is located in front of the front end edge of the locking projection 36. A plurality of outside air introduction holes 37 are arranged in the foam-forming cylinder 33 at intervals over the entire circumference.

  The switching unit 34 is located in front of the front end opening of the foam-forming cylinder 33, and is switched from the switching position for changing the mode of the foam-like liquid ejected from the front-end opening of the foam-forming cylinder 33 and the front end opening of the foam-forming cylinder 33. It is arranged so as to be movable between an open position and a separated position. In the present embodiment, the switching unit 34 narrows the ejection range of the bubble-like liquid ejected from the front end opening of the foam-forming tube 33 when positioned at the switching position. The switching unit 34 is connected to the nozzle body 22 so as to be pivotable forward, and when the switching unit 34 is positioned at the switching position, the rear surface of the body unit 38 described later is the front end of the foam tube 33. When the switching portion 34 is brought into contact with the opening edge and is rotated forward to be positioned at the open position, the rear surface of the main body portion 38 is retracted to a position where the liquid from the front end opening of the foam-forming tube 33 does not collide.

  The switching portion 34 includes a main body portion 38 that fits into the covering cylinder portion 29, a connecting piece 39 that protrudes upward from the main body portion 38 and is disposed in the upper cutout portion 29 a, and protrudes downward from the main body portion 38 and cuts down. And an operation piece 40 disposed in the notch 29b.

  The main body 38 is formed in a plate shape extending along a plane orthogonal to the central axis O2. The rear surface of the main body 38 is in contact with the opening edge of the front end of the foam tube 33. A passage hole 41 that opens in the front-rear direction is formed in the main body portion 38. The inner peripheral surface of the passage hole 41 is connected to the inner peripheral surface of the foam-forming cylinder 33 without a step. The inner diameter of the passage hole 41 is the same over the entire length in the front-rear direction. The length in the front-rear direction of the passage hole 41 is shorter than the length in the front-rear direction of the portion of the inner peripheral surface of the foam-forming tube 33 that is positioned in front of the opening edge of the front end of the cap mounting tube portion 31.

The connecting piece 39 is connected to the covering cylinder portion 29 so as to be rotatable around a rotation axis L extending in the left-right direction. Both end portions in the left-right direction of the connecting piece 39 are individually connected to both end surfaces facing each other in the left-right direction among the inner surfaces defining the upper notch 29a.
The operation piece 40 protrudes downward from the covering cylinder portion 29. The size of the operation piece 40 in the left-right direction is equal to the size of the lower notch 29b in the left-right direction. The operation piece 40 is detachably fitted in the lower notch 29b.

  In the present embodiment, a front communication portion 19g that communicates with the valve chamber 45 through the communication hole 46g of the second substrate 46b is formed in the first sliding contact portion 19d of the nozzle fitting cylinder portion 19. The front side communication portion 19g is integrally formed on the outer peripheral surface and the front end surface of the front end portion of the first sliding contact portion 19d. A plurality of the front side communication portions 19g are formed on the first sliding contact portion 19d at intervals in the circumferential direction. As shown in FIGS. 4 and 5, two front communication portions 19g are formed in the first sliding contact portion 19d with an interval of about 180 ° about the central axis O2.

  A rear communication portion 46 h that communicates with the inside of the injection cylinder portion 13 through the liquid outflow hole 19 f is formed in the second sliding contact portion 46 e of the inner nozzle 46. The rear communication part 46h is formed integrally with the inner peripheral surface of the rear end part and the rear end opening edge of the second sliding contact part 46e. A plurality of rear communication portions 46h are formed in the second sliding contact portion 46e at intervals in the circumferential direction. Two rear communication portions 46h are formed in the second sliding contact portion 46e with an interval of about 180 ° about the central axis O2.

The length in the front-rear direction of the front side communication portion 19g is shorter than the length in the front-rear direction of the rear side communication portion 46h. The rear end portion of the front side communication portion 19g and the front end portion of the rear side communication portion 46h are located at the same position in the front-rear direction.
In a state where the second fixed cylinder 47a of the outer nozzle 47 is fixedly fitted to the first fixed cylinder 46c of the inner nozzle 46, the third fitting cylinder 46a of the inner nozzle 46 is connected to the nozzle fitting cylinder portion 19. A second sliding contact portion 46e of the inner nozzle 46 is rotatably fitted to the second fitting cylinder 19c, and a second sliding contact portion 19d of the nozzle fitting cylinder portion 19 is rotatably fitted to the second fitting cylinder 19c. That is, the nozzle body 22 is disposed so as to be rotatable around the central axis O2 with respect to the ejector body 11.

From the above, the nozzle main body 22 has a jettable position where the rear side communication portion 46h and the front side communication portion 19g communicate with each other as shown in FIG. 4, and the rear side communication portion 46h and the front side as shown in FIG. Between the ejection restriction position that blocks communication with the communication portion 19g, the first sliding contact portion 19d and the second sliding contact portion 46e are slidably in contact with each other, and are arranged to be movable with respect to the ejector body 11. Has been.
The first nozzle body 22 is detachably engaged with the inner peripheral surface of the nozzle outer cylinder 47b of the outer nozzle 47 and the first substrate 19a of the nozzle fitting cylinder portion 19 when the nozzle main body 22 is located at the ejectable position. An engaging portion and a second engaging portion that are detachably engaged with each other when the nozzle body 22 is located at the ejection restriction position are formed.

  In the above configuration, when the liquid is ejected, the nozzle main body 22 is integrally rotated together with the valve body 23 and the coil spring 32 by being rotated around the central axis O2 with respect to the ejector main body 11 and positioned at the ejectable position. The rear communication portion 46h communicates with the front communication portion 19g, and the inside of the injection cylinder portion 13 communicates with the valve chamber 45 through the liquid outflow hole 19f, the rear communication portion 46h, the front communication portion 19g, and the communication hole 46g. Let

  Thereafter, while the elastic member 43 is elastically deformed, the trigger portion 15 is moved rearward and the piston 14b is moved backward relative to the cylinder 14a, whereby the inside of the cylinder 14a is pressurized and the contents in the cylinder 14a are vertically supplied. An attempt is made to ascend in the cylindrical portion 12. As a result, the suction valve 18 is closed, the communication between the pipe 17 and the injection cylinder part 13 is blocked, the inside of the injection cylinder part 13 is pressurized, and the liquid flows into the liquid outflow hole 19f and the rear communication part. 46h, the front side communication part 19g, and the communication hole 46g are supplied to the valve chamber 45, and each inside of the valve main body 23a and the seal cylinder part 23c is pressurized to a predetermined value.

  Here, since the inner diameter of the seal cylinder portion 23c is larger than the inner diameter of the valve body 23a, when the internal pressures of the valve body 23a and the seal cylinder portion 23c exceed a predetermined value, the pressure receiving area of these 23c and 23a is reduced. Due to the difference, the valve body 23 is moved backward against the forward biasing force of the coil spring 32, and the front end portion 23 e of the valve body 23 a is separated from the valve seat plate 24. Thereby, the inside of the injection cylinder part 13 and the ejection hole 26a are connected to the liquid outflow hole 19f, the rear side communication part 46h, the front side communication part 19g, the communication hole 46g, the valve chamber 45, the inner side of the valve seat plate 24, and the nozzle tip. The liquid communicates through the 28 nozzle communication grooves 27, and the liquid is ejected from the ejection holes 26 a into the foam tube 33.

  At this time, the inside of the foam-forming cylinder 33 becomes negative pressure, and outside air (air) is introduced into the foam-forming cylinder 33 through the outside air introduction hole 37, and the liquid is mixed with the outside air in the foam-forming cylinder 33 to foam and foam. And is ejected from the front end opening of the foam-forming cylinder 33. Note that the liquid ejected from the ejection hole 26a into the foaming tube 33 is in the form of a mist. For example, the mist-like liquid collides with the inner peripheral surface of the foaming tube 33 in the foaming tube 33. When the liquid flow is disturbed, it is agitated with the outside air and becomes foamy.

  And if each internal pressure of the valve main body 23a and the seal cylinder part 23c falls, the valve body 23 will be moved forward by the front urging | biasing force of the coil spring 32. FIG. Then, the front end 23e of the valve body 23a is seated on the valve seat plate 24, and the communication between the valve chamber 45 and the ejection hole 26a is blocked. Thereafter, when the trigger portion 15 is restored and moved forward based on the elastic restoring force of the elastic member 43 and the piston 14b is moved forward relative to the cylinder 14a, the inside of the cylinder 14a is depressurized and becomes negative pressure. As a result, the suction valve 18 is opened, the pipe 17 and the injection cylinder 13 are communicated, and the liquid in the container body W flows into the cylinder 14 a through the pipe 17.

  Then, the nozzle body 22 is rotated together with the valve body 23 and the coil spring 32 around the central axis O2 with respect to the ejector body 11 so as to be positioned at the ejection restriction position, so that the rear communication portion 46h and the front communication are communicated. The communication with the portion 19g is cut off, and the communication between the inside of the injection cylinder portion 13 and the valve chamber 45 is cut off. Thereby, it is possible to prevent the liquid from being ejected from the ejection hole 26 a due to an unexpected external force applied to the trigger portion 15.

As described above, according to the trigger type liquid ejector 1 according to the present embodiment, when the switching unit 34 is located at the open position, the foam-like liquid ejected from the front end opening of the foam-forming tube 33 is When the switching unit 34 is ejected without being narrowed, and the switching unit 34 is located at the switching position, the foamed liquid from the front end opening of the foam-forming cylinder 33 is ejected by the switching unit 34. It is ejected in a narrowed state. As described above, when the switching unit 34 is located at the switching position, the range of foam-like liquid ejected from the front end opening of the foam-forming tube 33 is narrowed, so that the operability of the trigger type liquid ejector 1 is improved. Can be made.
When the switching unit 34 is located at the switching position, the liquid foaming is caused not only by the mixed fluid of the liquid and the outside air but also inside the passage hole 41 of the switching unit 34 as well as the inner peripheral surface of the foam-forming tube 33. It occurs when it collides with the peripheral surface. By adjusting the lengths in the front-rear direction of the inner peripheral surfaces of the passage hole 41 and the foam-forming cylinder 33, the ejection range of the foam-like liquid can be changed.

  In addition, as an erroneous ejection preventing means for preventing liquid from being accidentally ejected by an unexpected external force applied to the trigger portion 15, the front communication communicating with the valve chamber 45 instead of the lid that closes the ejection hole 26 a from the front. A first sliding contact portion 19d formed with a portion 19g, and a second sliding contact portion 46e formed with a rear communication portion 46h communicating with the inside of the injection tube portion 13 and slidingly contacting the first sliding contact portion 19d. Since the first slidable contact portion 19d and the second slidable contact portion 46e are provided, the connection portion between the ejector body 11 and the nozzle body 22 that is separated from the switching portion 34 located in front of the front end opening of the foam-forming tube 33 is provided. Even if the nozzle member 20 includes the switching portion 34, the above-described erroneous ejection preventing means can be easily disposed.

  In addition, the nozzle body 22 moves relative to the ejector body 11 while the first sliding contact portion 19d and the second sliding contact portion 46e are in sliding contact with each other. Since it moves, it can prevent the deterioration of operativity by having employ | adopted the 1st sliding contact part 19d and the 2nd sliding contact part 46e instead of the cover body as an erroneous ejection prevention means.

  In addition, since one of the first sliding contact portion 19d and the second sliding contact portion 46e is formed in a cylindrical shape, and the other is rotatably fitted therein, for example, When the nozzle body 22 is positioned at the ejection restriction position, the sealing performance between the inside of the injection cylinder portion 13 and the valve chamber 45 can be easily and reliably secured, or the nozzle body 22 and the ejector body 11 are rattled. It is possible to suppress the sticking and the like, and the above-described effects can be reliably achieved with a simple configuration.

  Next, a second embodiment according to the present invention will be described. The basic configuration is the same as that of the first embodiment. For this reason, the same code | symbol is attached | subjected to the same structure, the description is abbreviate | omitted, and only a different point is demonstrated.

As shown in FIGS. 6 to 8, the trigger type liquid ejector 2 of the present embodiment is configured so that the trigger portion 15 is brought into contact with or close to the trigger portion 15 when the nozzle body 22 is located at the ejection restriction position. When the nozzle body 22 is located at a position where the nozzle body 22 can be ejected, the stopper member 50 is provided so as to be separated from the trigger portion 15 and allow the trigger portion 15 to move backward. It is arranged.
Hereinafter, the stopper member 50 when the nozzle body 22 is located at the ejection restriction position will be described.

The stopper member 50 includes a mounting portion 52 that is externally fitted to the nozzle outer cylinder 47 b of the nozzle body 22. The mounting portion 52 is externally fitted in a fixed state to the nozzle outer cylinder 47b. The mounting portion 52 is formed in a cylindrical shape that opens in the front-rear direction.
When the nozzle body 22 is positioned at the ejection restriction position, the stopper member 50 is in contact with or close to the trigger portion 15 from the rear of the trigger portion 15 and is in contact with or close to the cylinder 14a from the front of the cylinder 14a. 53.

  The restricting portion 53 is positioned below the rear side with respect to the mounting portion 52. The restricting portion 53 is disposed between the rear portion of the trigger portion 15 and the front end opening edge of the cylinder 14a. The restricting portion 53 is formed in a plate shape whose front and back faces in the vertical direction. As shown in FIG. 8, the restricting portion 53 has a rectangular shape with a pair of sides extending in the front-rear direction and the remaining pair of sides extending in the left-right direction when viewed from the vertical direction. Of the side surfaces of the restricting portion 53, the front surface facing forward is in contact with or close to the trigger portion 15, and the rear surface facing backward is in contact with or close to the front end opening edge of the cylinder 14a. When viewed from the front, the central portion in the left-right direction of the restricting portion 53 is shifted to the right with respect to the central portions in the left-right direction of the trigger portion 15 and the cylinder 14a. In addition, as viewed from the front, the central portion in the left-right direction of the restricting portion 53 may be shifted to the left with respect to the central portions in the left-right direction of the trigger portion 15 and the cylinder 14a.

  The stopper member 50 includes a connecting portion 54 that connects the mounting portion 52 and the restricting portion 53. The connecting portion 54 includes a first connecting portion 55 that extends downward from the mounting portion 52 and a second connecting portion 56 that extends forward from the restricting portion 53.

  The first connecting portion 55 extends downward from the lower end portion of the mounting portion 52. The first connecting part 55 is located in front of the upper part of the trigger part 15 and rearward of the lower part of the trigger part 15. The first connecting portion 55 is located on the right side of the trigger portion 15 when viewed from the front. The first connecting portion 55 extends straight in the vertical direction.

  The second connecting portion 56 extends rearward from the lower end portion of the first connecting portion 55. The second connecting portion 56 is connected to the right end portion of the restricting portion 53 when viewed from the front. The second connecting portion 56 is located on the right side of the trigger portion 15 when viewed from the front. The length of the second connecting portion 56 in the front-rear direction is equal to the length of the first connecting portion 55 in the up-down direction. The vertical size of the second connecting portion 56 is smaller than the thickness of the restricting portion 53. The second connecting portion 56 extends straight in the front-rear direction.

A connecting portion between the first connecting portion 55 and the second connecting portion 56 is formed with a support portion 50a that protrudes toward the left side when viewed from the front and contacts the trigger portion 15 from the right side of the trigger portion 15. . The support portion 50 a is integrally formed across the rear surface of the first connection portion 55 and the upper surface of the second connection portion 56. The support portion 50a has a flat surface facing the left side when viewed from the front.
As described above, the stopper member 50 includes the support portion 50a that is restricted from further movement by contacting the trigger portion 15 when the nozzle body 22 reaches the ejection restriction position from the ejectable position. In addition, you may employ | adopt the stopper member 50 which does not have the support part 50a.

In the present embodiment, when the nozzle body 22 located at the ejection restriction position is rotated together with the stopper member 50 counterclockwise around the center axis O2 when viewed from the front, the restriction portion 53 of the trigger portion 15 While retreating from between the rear part and the front end opening edge of the cylinder 14a, the nozzle body 22 reaches a position where it can be ejected. Accordingly, the rearward movement of the trigger portion 15 is allowed, and the front side communication portion 19g of the first sliding contact portion 19d and the rear side communication portion 46h of the second sliding contact portion 46e communicate with each other.
On the other hand, when the nozzle body 22 located at the ejectable position together with the stopper member 50 is rotated clockwise around the central axis O2 when viewed from the front, the restricting portion 53 is connected to the rear portion of the trigger portion 15 and the cylinder 14a. While entering between the front end opening edge, the nozzle body 22 reaches the ejection restriction position. Thereby, the rearward movement of the trigger portion 15 is restricted, and the communication between the front side communication portion 19g and the rear side communication portion 46h is blocked.

As described above, according to the trigger type liquid ejector 2 according to the present embodiment, not only the first sliding contact portion 19d and the second sliding contact portion 46e but also the stopper member 50 is used as the erroneous ejection preventing means described above. Therefore, it is possible to reliably prevent liquid from being accidentally ejected by an unexpected external force applied to the trigger portion 15.
Moreover, since the stopper member 50 abuts or approaches the trigger portion 15 to restrict the rearward movement of the trigger portion 15, the stopper member 50 can be disposed away from the switching portion 34, and the nozzle Even if the member 20 includes the switching portion 34, the stopper member 50 can be easily disposed.
Further, since the stopper member 50 is disposed in the nozzle body 22, the stopper member 50 is also moved as the nozzle body 22 is moved between the ejectable position and the ejection restriction position with respect to the ejector body 11. It is possible to move between the position allowing the rearward movement of the trigger portion 15 and the position restricting the rearward movement of the trigger portion 15, thereby preventing deterioration in operability due to the provision of the stopper member 50. be able to.

  In addition, when the nozzle body 22 is positioned at the ejection restriction position, the restriction portion 53 is disposed in the front-rear direction gap between the trigger portion 15 and the cylinder 14a, so that the trigger-type liquid ejector 2 is stored or It is possible to suppress the stopper member 50 from being bulky by protruding from the trigger type liquid ejector 2 at the time of display or the like, and the stopper member 50 can be made compact.

Incidentally, the cylinder 14a is formed with an opening 14c for an introduction passage for introducing outside air into the container body W as the liquid in the container body W flows into the cylinder 14a through the pipe 17. The opening 14c is closed by a piston 14b located at the front end. Accordingly, when the trigger type liquid ejector 2 and the container body W are turned upside down with the piston 14b moving backward and the opening 14c opened, the liquid in the container body W passes through the introduction passage and passes through the opening 14c. To leak. Such a problem is considered to occur, for example, when the trigger type liquid ejector 2 and the container body W are carried in a shopping bag together with other commodities.
However, in this embodiment, since the rearward movement of the trigger portion 15 is restricted by the stopper member 50 when the nozzle body 22 is located at the ejection restriction position, such a liquid leakage can be prevented. .

Next, a third embodiment according to the present invention will be described. The basic configuration is the same as that of the second embodiment. For this reason, the same code | symbol is attached | subjected to the same structure, the description is abbreviate | omitted, and only a different point is demonstrated.
In the trigger type liquid ejector 3 of the present embodiment, as shown in FIG. 9, the stopper member 50 does not have the mounting portion 52, and the first connecting portion 55 projects from the outer peripheral surface of the nozzle outer cylinder 47b. That is, the nozzle body 22 and the stopper member 50 are integrally formed.
According to the trigger type liquid ejector 3 according to the present embodiment, the effects of the trigger type liquid ejector 2 of the second embodiment can be achieved while suppressing an increase in the number of parts.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the first sliding contact portion 19d having the front side communication portion 19g communicating with the valve chamber 45 is provided in the ejector body 11 and the rear side communication portion 46h communicating with the inside of the injection cylinder portion 13 is provided. Although the configuration in which the two slidable contact portions 46e are provided in the nozzle main body 22 is shown, the configuration in which the nozzle main body 22 includes the first slidable contact portion 19d and the ejector main body 11 includes the second slidable contact portion 46e is adopted. Also good.
In addition, the configuration in which the first sliding contact portion 19d is fitted in the second sliding contact portion 46e so as to be rotatable around the central axis O2 is shown. However, the present invention is not limited to this. For example, the front communication with the valve chamber 45 is provided. A second sliding contact portion having a rear side communication portion 46h communicating with the inside of the injection cylinder portion 13 may be rotatably fitted in the first sliding contact portion having the portion 19g, and the first sliding contact portion and You may employ | adopt the board | plate etc. which overlapped in the front-back direction as a 2nd sliding contact part.

Further, the restricting portion 53 is not limited to the rear portion of the trigger portion 15 and may be in contact with or close to the front portion or the side portion. Further, the restricting portion 53 is not limited to the cylinder 14a, and may be in contact with or close to the mounting cylinder portion 16, the vertical supply cylinder portion 12, the container body W, or the like.
The form of the switching unit 34 is not limited to the above embodiment, and may be changed as appropriate. For example, in the above-described embodiment, the switching unit 34 narrows the ejection range of the foam-like liquid ejected from the front end opening of the foam-forming tube 33 when positioned at the switching position. The shape may be changed.

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

1, 2, 3 Trigger type liquid ejector 11 Ejector body 12 Vertical supply cylinder part 13 Injection cylinder part 14a Cylinder 14b Piston 15 Trigger part 19d First sliding contact part 19g Front side communication part 20 Nozzle member 22 Nozzle body 23 Valve element 26a Ejection hole 33 Foam-forming cylinder 34 Switching part 37 Outside air introduction hole 45 Valve chamber 46e Second sliding contact part 46h Rear communication part 50 Stopper member 52 Mounting part 53 Restriction part 54 Connection part O2 Center axis (rotation axis)
T Trigger mechanism W Container body

Claims (5)

An ejector body mounted on a container body containing a liquid;
A nozzle member disposed on the front side of the ejector main body and formed with an ejection hole for ejecting liquid;
The ejector body is
A vertical supply cylinder that extends in the vertical direction and sucks up the liquid in the container;
An injection cylinder part disposed in front of the vertical supply cylinder part and guiding the liquid in the vertical supply cylinder part to the ejection holes;
There is a trigger part disposed in front of the vertical supply cylinder part so as to be movable rearward in a forward-biased state, and liquid is moved from the vertical supply cylinder part into the injection cylinder part by the rearward movement of the trigger part. A trigger mechanism that circulates toward the ejection hole side through,
The nozzle member is
A valve chamber communicating the inside of the injection cylinder part and the ejection hole, and a nozzle body in which the ejection hole is formed,
A valve body disposed in the valve chamber, blocking communication between the valve chamber and the ejection hole, and communicating the valve chamber and the ejection hole when an internal pressure of the valve chamber exceeds a predetermined value; ,
A foam-forming cylinder that is disposed in front of the ejection hole and that has an outside air introduction hole that surrounds the ejection hole and introduces outside air inside,
A switching position that is located in front of the front end opening of the foam-forming cylinder and changes the mode of the foam-like liquid ejected from the front-end opening of the foam-forming cylinder, and an open position that is separated from the front end opening of the foam-forming cylinder And a switching unit arranged to be movable between,
Any one of the ejector body and the nozzle body is disposed between the injection tube portion and the valve chamber, and has a first sliding contact formed with a front communication portion communicating with the valve chamber. And the other is disposed between the injection cylinder part and the valve chamber, and a rear communication part communicating with the inside of the injection cylinder part is formed, and the first sliding contact part A second sliding contact portion for sliding contact;
The nozzle body includes a jettable position where the front communication portion and the rear communication portion communicate with each other, and an ejection restriction position which blocks communication between the front communication portion and the rear communication portion. A trigger type liquid ejector, wherein the first slide contact portion and the second slide contact portion are arranged so as to be movable with respect to the ejector body while being in sliding contact with each other.   One of the first slidable contact portion and the second slidable contact portion is formed in a cylindrical shape, and the other is rotatably fitted therein. Item 2. A trigger type liquid ejector according to Item 1.   When the nozzle body is located at the ejection restriction position, the nozzle body restricts the rearward movement of the trigger part by contacting or approaching the trigger part, and the nozzle body is located at the ejectable position. 3. The trigger type liquid ejector according to claim 1, wherein a stopper member that is separated from the trigger portion and allows the rearward movement of the trigger portion is disposed when positioned at the position. The trigger mechanism is
A piston that moves in the front-rear direction in conjunction with the trigger portion;
A cylinder in which the piston is inserted and the inside communicates with the vertical supply cylinder portion;
The stopper member is a restriction that abuts or approaches the trigger portion from the rear of the trigger portion and abuts or approaches the cylinder from the front when the nozzle body is located at the ejection restriction position. The trigger type liquid ejector according to claim 3, further comprising a portion.   5. The switch according to claim 1, wherein when the switching unit is located at the switching position, the range of foam-like liquid ejected from a front end opening of the foam-forming cylinder is narrowed. Triggered liquid ejector as described.

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