Trigger-type liquid ejector

Abstract

To provide a trigger type liquid injector in which a stopper is prevented from being exposed forward.SOLUTION: A trigger part 41 is mounted with a stopper 60 that is supported rotatably around a rotation axis extending in a right and left direction with respect to the trigger part 41, in between a storage position in which the stopper 60 is stored in a storage recess 41A formed in the trigger part 41 and a regulation position in which the stopper 60 contacts with or comes close to a main cylinder to regulate rearward movement of the trigger part 41. The stopper 60 is provided with a storage engagement part 63B that engages with the trigger part 41 in the storage position to regulate rotation of the stopper 60 to the regulation position.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a trigger-type liquid ejector.

Background Art

[0002] Conventionally, there has been proposed a trigger-type liquid ejector including an ejector body attached to a container body containing a liquid, a nozzle portion disposed on the front side of the ejector body and having an ejection hole for ejecting the liquid, the ejector body extending in the vertical direction and having a vertical supply cylinder portion for sucking up the liquid in the container body, a trigger portion disposed in front of the vertical supply cylinder portion so as to be movable backward in a forward biasing state, a piston moving back and forth in conjunction with the swinging of the trigger portion, and a cylinder having an interior that is pressurized and depressurized as the piston moves and that communicates with the interior of the vertical supply cylinder portion, and a trigger mechanism for causing the liquid to flow from the interior of the vertical supply cylinder portion toward the ejection hole side by moving the trigger portion backward.

[0003] In such a trigger-type liquid ejector, there has been proposed one provided with a stopper for restricting the backward movement of the trigger portion (see, for example, Patent Document 1). This stopper is rotatably supported around a rotation axis with respect to the trigger portion, and has a restricting portion that protrudes rearward from the trigger portion and abuts or approaches the cylinder, and an operating portion that protrudes forward from the trigger portion. Then, by an operation of moving the operating portion upward to rotate the stopper around the rotation axis, the restricting portion is moved downward and the restriction by the restricting portion is released.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the above-described stopper, the operation portion protrudes forward with respect to the trigger portion. Therefore, when a finger is placed on the trigger portion and pulled backward, the operation portion may interfere and inhibit the operation of pulling the trigger portion. Further, during transportation or display, an external force may unintentionally be applied to the operation portion, thereby releasing the regulation by the stopper and causing the trigger portion to be pulled backward.

[0006] Therefore, an object of the present invention is to provide a trigger-type liquid ejector that suppresses the forward exposure of the stopper.

Means for Solving the Problems

[0007] The present invention employs the following means to solve the above problems. That is, the trigger-type liquid ejector of the present invention includes an ejector main body attached to a container body in which a liquid is stored, and a nozzle portion disposed on the front side of the ejector main body and having an ejection hole for ejecting the liquid. The ejector main body includes a vertical supply cylinder portion that extends in the vertical direction and sucks up the liquid in the container body, a trigger portion disposed in front of the vertical supply cylinder portion and movable backward in a forward biasing state, a piston that moves in the front-rear direction in conjunction with the swinging of the trigger portion, and a cylinder that is pressurized and depressurized inside as the piston moves and communicates with the inside of the vertical supply cylinder portion. The trigger-type liquid ejector further includes a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder portion toward the ejection hole side when the trigger portion moves backward. A stopper is rotatably supported around a rotation axis extending in a direction intersecting the front-rear direction with respect to the trigger portion between a storage position stored in a storage recess formed in the trigger portion and a regulation position that abuts or is close to the cylinder to regulate the backward movement of the trigger portion. At least one of the trigger portion and the stopper is provided with a storage locking portion that locks to the other at the storage position to regulate the rotation of the stopper to the regulation position. and the stopper has a pair of clamping portions that separately clamp a pair of side wall portions provided at intervals in the rotation axis direction in which the rotation axis extends among the wall portions defining the storage recess in the storage position. It is characterized by the above.

[0008] In the present invention, at both the regulation position that restricts the backward movement of the trigger part and the storage position where the restriction on the backward movement of the trigger part is released, the exposure toward the front of the trigger part is suppressed. As a result, it is suppressed that the finger placed on the trigger part interferes with the stopper when pulling the trigger part, and it is also suppressed that the stopper disengages from the regulation position due to an unintended external force during non-use such as during transportation and display. Here, since the stopper in the storage position is locked to the trigger part by the storage locking part, it is possible to suppress the stopper from unintentionally moving from the storage position toward the regulation position. Further, in the present invention, since the clamping portion clamps the side wall portion that defines the storage recess, it is possible to suppress the stopper in the storage position from separating from the storage position toward the restriction position.

[0009] Further, in the trigger-type liquid ejector of the present invention, the stopper may be provided with a regulation locking part that locks to the cylinder at the regulation position. In the present invention, since the stopper in the regulation position is locked to the cylinder by the regulation locking part, it is possible to suppress the stopper from unintentionally moving from the regulation position toward the storage position.

[0011] Further, in the trigger-type liquid ejector of the present invention, the clamping part may be provided with a finger hook part that protrudes outward in the direction of the rotation axis. In the present invention, when moving the stopper from the storage position to the regulation position or from the regulation position to the storage position, the stopper can be easily operated.

[0012] Further, in the trigger-type liquid ejector of the present invention, the rotation axis may extend in the left-right direction orthogonal to the front-rear direction when viewed from the up-down direction. In the present invention, by making the stopper rotatable around a rotation axis extending in the left-right direction orthogonal to the front-rear direction, which is the moving direction of the trigger part, it is possible to access the stopper from both the left and right sides of the trigger part in the same manner and operate the stopper.

Advantages of the Invention

[0013] According to the trigger-type liquid ejector of the present invention, since the stopper is housed in the storage recess of the trigger part at the storage position where the restriction on the rearward movement of the trigger part is released, the exposure of the stopper to the outside in front of the trigger part is suppressed.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0015] Hereinafter, an embodiment of the trigger-type liquid ejector according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the trigger-type liquid ejector 1 according to the present embodiment includes an ejector body 2 that can be attached to a container body A for storing a liquid, a nozzle member (nozzle part) 3 in which an ejection hole 3A for ejecting the liquid is formed and that is attached to the ejector body 2, and a cover body 4 that covers the ejector body 2 and the nozzle member 3.

[0016] The ejector body 2 includes a vertical supply cylinder part 11, a connection cylinder part 12, a cylinder cylinder part 13, a mounting cap 14, a storage cylinder 15, a storage plunger 16, a biasing member 17, an injection cylinder part 18, a trigger mechanism 19, a ball valve 20, and a storage valve 21. Here, the central axis of the vertical supply cylinder portion 11 is defined as axis O1. The side of the container body A along this axis O1 is the lower side, the opposite side is the upper side, the direction along the axis O1 is referred to as the vertical direction. When viewed from the vertical direction, one direction intersecting the axis O1 is referred to as the front-rear direction, and the direction orthogonal to the vertical direction and the front-rear direction is referred to as the left-right direction. Also, the central axis of the storage cylinder 15 is defined as axis O2, and this axis O2 extends in the front-rear direction. The side of the nozzle member 3 along the axis O2 is referred to as the front side.

[0017] The vertical supply cylinder portion 11 extends in the vertical direction. Inside the vertical supply cylinder portion 11, a pipe 31 that extends in the vertical direction and sucks up liquid from the container body A is fitted. The connection cylinder portion 12 is provided at the upper end portion of the vertical supply cylinder portion 11 and extends forward from the vertical supply cylinder portion 11. The inside of the connection cylinder portion 12 communicates with the inside of the vertical supply cylinder portion 11. Also, a closing plug 32 that closes the front end opening portion is attached to the front end opening portion of the connection cylinder portion 12. The cylinder-use cylinder portion 13 is provided below the connection cylinder portion 12 in the vertical supply cylinder portion 11 and extends forward from the vertical supply cylinder portion 11. The inside of the cylinder-use cylinder portion 13 communicates with the inside of the vertical supply cylinder portion 11. The mounting cap 14 is screwed onto the mouth portion of the container body A.

[0018] The storage cylinder 15 is disposed above the vertical supply cylinder portion 11 and the connection cylinder portion 12. Inside the storage cylinder 15, the liquid that has passed through the inside of the vertical supply cylinder portion 11 and the connection cylinder portion 12 due to the backward swing of a trigger portion 41 (to be described later) is supplied. A supply hole 15A that communicates with the inside of the connection cylinder portion 12 is formed in the lower side portion of the front end portion of the storage cylinder 15.

[0019] The storage plunger 16 is disposed inside the storage cylinder 15 so as to be movable in the front - rear direction along the axis O2. Thereby, the storage plunger 16 slides liquid - tightly in the front - rear direction within the storage cylinder 15. The storage plunger 16 moves rearward as the liquid is supplied into the storage cylinder 15. The storage plunger 16 blocks the communication between the vertical supply cylinder portion 11 and the ejection hole 3A through the connection cylinder portion 12, and when it moves rearward, it allows the communication between the inside of the vertical supply cylinder portion 11 through the connection cylinder portion 12 and the ejection hole 3A. Therefore, at the most forward position, the storage plunger 16 blocks the communication between the inside of the vertical supply cylinder portion 11 through the connection cylinder portion 12 and the ejection hole 3A, and when it moves rearward from the most forward position, it allows the communication between the inside of the vertical supply cylinder portion 11 through the connection cylinder portion 12 and the ejection hole 3A. And the space in the storage cylinder 15 located in front of the storage plunger 16 functions as a storage space 16A. The liquid that has passed through the inside of the vertical supply cylinder portion 11, the inside of the connection cylinder portion 12, and the supply hole 15A is stored in the storage space 16A. The storage space 16A can communicate with the inside of an injection cylinder portion 18 described later.

[0020] The biasing member 17 biases the storage plunger 16 forward. Thereby, in the storage cylinder 15 and the storage plunger 16, it is possible to pressurize the liquid within the storage space 16A until the storage plunger 16 moves rearward. Then, when the hydraulic pressure in the storage space 16A reaches a predetermined value, the storage plunger 16 moves rearward against the forward biasing force of the biasing member 17. Thereby, the liquid stored in the storage space 16A is supplied toward the ejection hole 3A side. In this way, the storage plunger 16 functions as a pressure - accumulating valve. The injection cylinder portion 18 extends forward from the storage cylinder 15 and communicates with the inside of the vertical supply cylinder portion 11 through the storage space 16A and the inside of the connection cylinder portion 12.

[0021] The trigger mechanism 19 includes a trigger part 41, a main cylinder 42, a main piston 43, and a biasing spring 44. The trigger mechanism 19 causes the liquid to flow from the inside of the vertical supply cylinder part 11 through the inside of the connection cylinder part 12 toward the ejection hole 3A by the backward swing of the trigger part 41. As shown in FIGS. 1 to 6, the upper end of the trigger part 41 is disposed in a space defined by the nozzle member 3, the cover body 4, and the closing plug 32, and is disposed movably backward in a forward-biased state in front of the vertical supply cylinder part 11. The trigger part 41 extends in the vertical direction. The upper end of the trigger part 41 is pivotally supported by the nozzle member 3, and the lower end of the trigger part 41 is disposed in front of the main cylinder 42.

[0022] The trigger part 41 includes a front wall part 51, a pair of side wall parts 52 extending rearward from both left and right edge parts of the front wall part 51, a pressing wall part 53 extending rearward from the front wall part 51, a storage upper wall part 54 and a storage lower wall part 55 extending rearward from the front wall part 51, and a lower wall part 56 extending rearward from the lower end edge of the front wall part 51. The front wall part 51 has an upper side part 51A extending substantially along the vertical direction, a connection part 51B connected to the lower end edge of the upper side part 51A and inclined so as to face rearward as it goes from above to below, and a lower side part 51C connected to the lower end of the connection part 51B and curved so as to face forward as it goes from above to below. The upper side part 51A is close to or in contact with the regulating wall part 3B of the nozzle member 3. Thereby, further forward rotation of the trigger part 41 is regulated. A finger is placed on the lower side part 51C when the trigger part 41 is operated.

[0023] The upper end portion of the side wall portion 52 is pivotally supported by the nozzle member 3. As a result, the trigger portion 41 is swingable in the front-rear direction. Also, a stopper 60, which will be described later, is pivotally supported at an intermediate portion of the side wall portion 52 in the vertical direction. Further, a portion of the side wall portion 52 between the storage upper wall portion 54 and the storage lower wall portion 55 defines a storage recess 41A capable of storing the stopper 60 together with the storage upper wall portion 54 and the storage lower wall portion 55. And, an introduction groove portion 52A for introducing the stopper shaft portion 61A of the stopper 60 into the storage recess 41A from the rear and a pivot support recess 52B continuous with the front of the introduction groove portion 52A are formed in the side wall portion 52.

[0024] The pressing wall portion 53 extends rearward from the lower portion 51C of the front wall portion 51 and is close to or in contact with the front end portion of the main piston 43. Also, the rear end surface of the pressing wall portion 53 is recessed so as to face forward as it goes from the outer side in the left-right direction toward the center in the left-right direction, and is positioned so as to sandwich the front end portion of the main cylinder 42 in the left-right direction. Thereby, as the trigger portion 41 swings in the front-rear direction, the main piston 43 moves in the front-rear direction.

[0025] The storage upper wall portion 54 extends rearward from the lower portion 51C of the front wall portion 51 below the pressing wall portion 53, and the storage lower wall portion 55 extends rearward from the lower portion 51C of the front wall portion 51 below the storage upper wall portion 54.

[0026] As shown in FIGS. 2 to 5, the stopper 60 has a plate shape extending along the front wall portion 51 of the trigger portion 41 in a state of being located at a storage position, which will be described later. The stopper 60 includes a plate-shaped base portion 61 extending along the front wall portion 51, a pair of sandwiching wall portions (sandwiching portions) 62 protruding rearward from both left and right edge portions of the base portion 61, and a lower protruding wall portion 63 protruding rearward from the lower edge of the base portion 61.

[0027] On both side surfaces of the upper end of the base portion 61, stopper shaft portions 61A protruding outward in the left - right direction are provided. The stopper shaft portions 61A are housed in the shaft - support recessed portions 52B. Thereby, the stopper 60 can rotate around the rotation shaft between the storage position housed inside the storage recessed portion 41A and the regulation position close to or in contact with the main cylinder 42.

[0028] The clamping wall portion 62 has an inner wall portion 65 disposed inside the side wall portion 52 of the trigger portion 41 in the left - right direction, an outer wall portion 64 disposed outside the side wall portion 52 of the trigger portion 41 in the left - right direction, and a connecting wall portion 66 connecting the inner wall portion 65 and the outer wall portion 64. The outer wall portion 64 does not protrude below the base portion 61 in a state where the stopper 60 is in the regulation position as shown in FIG. 1. That is, the outer wall portion 64 does not protrude in front of the trigger portion 41. Further, on the outer surface of the outer wall portion 64, a finger - hook portion 64A protruding outward in the left - right direction is formed. The outline of the finger - hook portion 64A is inside the outline of the outer wall portion 64 when viewed in the left - right direction. That is, the finger - hook portion 64A does not protrude in front of the trigger portion 41. Note that the thickness of the finger - hook portion 64A in the left - right direction is the same as the thickness of the outer wall portion 64 in the left - right direction. The distance between the outer surface of the inner wall portion 65 in the left - right direction and the inner surface of the outer wall portion 64 in the left - right direction is the same as the thickness of the side wall portion 52 in the left - right direction. Therefore, the inner wall portion 65 is fitted inside the side wall portion 52 in the left - right direction, and the outer wall portion 64 is fitted outside the side wall portion 52 in the left - right direction. In this way, the clamping wall portion 62 sandwiches the side wall portion 52 of the trigger portion 41 in the left - right direction by the inner wall portion 65 and the outer wall portion 64.

[0029] On the rear end surface of the lower protruding wall portion 63, a relief recess 63A corresponding to the outer peripheral surface shape at the lower end of the main piston 43 is formed. Further, on the lower end surface of the lower protruding wall portion 63, a storage locking portion 63B protruding rearward is formed. This storage locking portion 63B is locked to the front end portion of the main cylinder 42 in a state where the stopper 60 is in the regulation position as shown in FIG. 1, and also functions as a regulation locking portion for locking to the main cylinder 42.

[0030] The main cylinder 42 has a bottomed cylindrical shape with its front end opening forward and its rear end closed. An opening that communicates with the inside of the vertical supply cylinder portion 11 is formed at the rear end of the main cylinder 42. The main piston 43 is disposed inside the main cylinder 42 and has a toped cylindrical shape with its rear end opening rearward and its front end closed. The pressing wall portion 53 of the trigger portion 41 abuts against the front end portion of the main piston 43. Thereby, the main piston 43 can move in the front-rear direction in conjunction with the swinging of the trigger portion 41, and the inside of the main cylinder 42 is pressurized and depressurized as the main piston 43 moves in the front-rear direction.

[0031] The biasing spring 44 is disposed coaxially with the main piston 43 and the main cylinder 42, and biases the main piston 43, and thus the trigger portion 41, forward. The ball valve 20 and the storage valve 21 are provided inside the vertical supply cylinder portion 11. The ball valve 20 shuts off the communication between the inside of the container body A through the inside of the vertical supply cylinder portion 11 and the inside of the main cylinder 42 when the main cylinder 42 is pressurized, and forms a check valve that allows the communication between the inside of the container body A through the inside of the vertical supply cylinder portion 11 and the inside of the main cylinder 42 by displacing upward when the inside of the main cylinder 42 is depressurized. The storage valve 21 is disposed above the ball valve 20, and forms a check valve that allows the supply of liquid from the inside of the vertical supply cylinder portion 11 to the inside of the storage cylinder 15 through the inside of the connection cylinder portion 12 and restricts the outflow of liquid from the inside of the storage cylinder 15 to the inside of the vertical supply cylinder portion 11.

[0032] The nozzle member 3 is assembled to the injection cylinder portion 18, and includes a mounting cylinder portion 71 that is externally fitted to the injection cylinder portion 18 from the front, a nozzle shaft portion 72 that is located inside the mounting cylinder portion 71, and a nozzle cap 73 that is attached to the nozzle shaft portion 72. An ejection hole 3A that opens forward and ejects liquid forward is formed in the nozzle cap 73. The cover body 4 is provided so as to cover at least the left and right sides and above the entire vertical supply cylinder portion 11 except for the lower end portion, the entire injection cylinder portion 18, and the entire storage cylinder 15.

[0033] Next, a method of using the trigger-type liquid ejector 1 configured as described above will be described. Note that by operating the trigger part 41 in advance, the inside of each part of the trigger-type liquid ejector 1 is filled with liquid, and it is assumed that the liquid can be sucked up inside the vertical supply cylinder part 11.

[0034] First, place a finger on the finger hook part 64A of the stopper 60 in the storage position. For example, place the thumb on one of the pair of finger hook parts 64A and the index finger on the other finger hook part 64A to sandwich the stopper 60, and rotate the stopper 60 downward around the rotation axis to move it from the regulation position to the storage position. Here, in the regulation position, the storage locking part 63B of the stopper 60 is locked to the main cylinder 42, and the stopper 60 is regulated from being unintentionally moved from the regulation position to the storage position. Also, a part of the outer peripheral surface of the front end part of the main piston 43 has entered into the escape recess 63A.

[0035] When the stopper 60 is moved to the storage position, the sandwiching wall part 62 sandwiches each of the pair of side wall parts 52 that define the storage recess 41A in the left-right direction. Also, the storage locking part 63B of the stopper 60 is locked to the storage lower wall part 55 that defines the storage recess 41A. Thereby, the stopper 60 is regulated from being unintentionally detached from the storage position. Also, in front of the stopper 60, there is a front wall part 51 that defines the storage recess 41A. Therefore, the stopper 60 is regulated from being unintentionally moved further forward from the storage position. This also suppresses the stopper 60 from being exposed forward of the trigger part 41. In this way, the regulation by the stopper 60 is released.

[0036] After moving the stopper 60 to the storage position, when the trigger part 41 is pulled backward against the biasing force of the biasing spring 44, the main piston 43 moves backward from the foremost position, and the inside of the main cylinder 42 is pressurized. As a result, the liquid inside the main cylinder 42 is supplied to the vertical supply cylinder part 11, and the supplied liquid presses the ball valve 20 downward and pushes up the storage valve 21. As a result, the liquid inside the vertical supply cylinder part 11 is supplied to the storage space 16A of the storage cylinder 15 through the inside of the connection cylinder part 12 and the supply hole 15A, and the storage space 16A is pressurized. Along with the pressurization of the storage space 16A, the storage plunger 16 moves backward from the foremost position against the biasing force of the biasing member 17, and stores the liquid in the storage space 16A. Further, the liquid in the storage space 16A with increased pressure is guided to the ejection hole 3A through the ejection cylinder part 18 and is ejected forward from the ejection hole 3A. In this way, every time the trigger part 41 is pulled backward, the liquid is ejected from the ejection hole 3A and the storage plunger 16 is moved backward to store the liquid in the storage space 16A.

[0037] Then, when the trigger part 41 is released, the main piston 43 moves forward by the restoring force of the biasing spring 44, and decompresses the inside of the main cylinder 42. As a result, it becomes possible to raise the ball valve 20 with the storage valve 21 closed, and it becomes possible to suck up the liquid inside the container body A into the inside of the vertical supply cylinder part 11 and introduce it into the inside of the main cylinder 42. Therefore, the preparation for the next ejection is completed.

[0038] On the other hand, when the backward movement of the trigger part 41 stops, the storage plunger 16 advances toward the foremost position by the biasing force of the biasing member 17. Here, the storage valve 21 is closed, preventing the backward flow of the liquid from the storage space 16A into the inside of the vertical supply cylinder part 11. As a result, the liquid stored in the storage space 16A is ejected from the ejection hole 3A through the ejection cylinder part 18. Therefore, the liquid can be ejected not only when the trigger part 41 is pulled backward, but also when the trigger part 41 is not operated, enabling continuous ejection of the liquid.

[0039] According to the trigger-type liquid ejector 1 according to the present embodiment configured as described above, since the stopper 60 in the storage position is stored in the storage recess 41A formed in the trigger portion 41, the exposure forward of the trigger portion 41 is suppressed. As a result, when pulling the trigger portion 41 backward, the operation of hooking a finger on the trigger portion 41 or pulling it backward is less likely to be inhibited by the stopper 60, and when the stopper 60 is in the regulation position, it is less likely to be disengaged from the regulation position by an unintended external force.

[0040] Here, in a state where the stopper 60 is in the storage position, the storage locking portion 63B is locked to the storage lower wall portion 55 that defines the storage recess 41A, and the pair of sandwiching wall portions 62 sandwich the pair of side wall portions 52 that define the storage recess 41A separately in the left-right direction. Therefore, the stopper 60 is restricted from unintentionally departing from the storage position. Further, in a state where the stopper 60 is in the regulation position, since the storage locking portion 63B is locked to the front end portion of the main cylinder 42, the stopper 60 is restricted from unintentionally departing from the regulation position. In addition, since the finger hook portion 64A is provided on the sandwiching wall portion 62, the stopper 60 can be easily operated when moving the stopper 60 between the regulation position and the storage position. Furthermore, since the stopper 60 is rotatable about a rotation axis extending in the left-right direction, when the stopper 60 is operated with the right hand while holding the container body A to which the trigger-type liquid ejector 1 is attached with the left hand and when the stopper 60 is operated with the left hand while holding the container body A with the right hand, the operation can be performed in the same manner, and the stopper 60 can be accessed and operated in the same manner from both the left and right sides of the trigger portion 41 with respect to the stopper 60.

[0041] Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, although the trigger-type liquid ejector has a configuration that enables continuous ejection of liquid by including a storage cylinder, it may be configured not to enable continuous ejection of liquid. The shape of the stopper is box-shaped as a whole with a wall portion standing upright upward from the outer peripheral edge of the base portion, but it may have other shapes such as forming a frame shape as a whole by forming an opening portion in the base portion. The stopper is rotatable around a rotation axis at the upper end portion of the stopper, but it may be rotatable around a rotation axis at the lower end portion of the stopper, for example. Further, the rotation axis of the stopper only needs to extend in a direction intersecting with the front-rear direction and is not limited to the left-right direction. The storage locking portion is provided at the lower end portion of the stopper, but it may be provided at other locations. Further, the storage locking portion may be provided not on the stopper but on the trigger portion, or may be provided on both the stopper and the trigger portion. Furthermore, the storage locking portion also has the function of the regulation locking portion, but the regulation locking portion may be provided separately from the storage locking portion. Further, the stopper may not be provided with the regulation locking portion. Only one clamping wall portion may be provided on the stopper. For example, the clamping wall portion may sandwich the storage lower wall portion in the vertical direction. Further, the stopper may not be provided with the clamping wall portion. For example, in a state where the stopper is in the storage position, since the inner wall portion of the stopper is behind the side wall portion of the trigger portion, by operating with a finger the portion of the inner wall portion that protrudes rearward from the outer wall portion, the stopper can be rotated toward the regulation position. Further, for example, not limited to the inner wall portion, by operating an appropriate operation portion (for example, a finger hook recess provided in the base portion or the opening edge portion of the base portion when the base portion has a frame shape as described above) of the stopper that protrudes rearward from the side wall portion or other than such a protruding portion, the stopper may be rotated toward the regulation position. The finger hook portion may be provided only on one of the pair of clamping portions and may not be provided on the stopper.

Industrial Applicability

[0042] According to this invention, industrial applicability is recognized for a trigger-type liquid ejector that suppresses the forward exposure of the stopper.

Explanation of Reference Numerals

[0043] 1 Trigger-type liquid ejector, 2 Ejector body, 3 Nozzle member (nozzle section), 3A Ejection hole, 11 Vertical supply cylinder section, 19 Trigger mechanism, 41 Trigger section, 41A Storage recess, 42 Main cylinder (cylinder), 43 Main piston (piston), 52 Side wall section, 60 Stopper, 62 Clamping wall section (clamping section), 63B Storage locking section, A Container body

Claims

1. An ejector body attached to a container body containing a liquid, A nozzle portion disposed on the front side of the ejector body and having an ejection hole for ejecting a liquid, Comprising, The ejector body extends in the vertical direction and has a vertical supply cylinder portion for sucking up the liquid in the container body, A trigger portion disposed in front of the vertical supply cylinder portion and movable backward in a forward biasing state, a piston that moves in the front-rear direction in conjunction with the swinging of the trigger portion, and a cylinder that is pressurized and depressurized internally as the piston moves and is internally communicated with the vertical supply cylinder portion, and a trigger mechanism that allows the liquid to flow from the inside of the vertical supply cylinder portion toward the ejection hole side when the trigger portion moves backward, A trigger-type liquid ejector comprising, On the trigger portion, between a storage position stored in a storage recess formed in the trigger portion and a regulation position that abuts or is close to the cylinder and restricts the backward movement of the trigger portion, a stopper rotatably supported about a rotation axis extending in a direction intersecting the front-rear direction with respect to the trigger portion is mounted, At least one of the trigger portion and the stopper is provided with a storage locking portion that locks to the other at the storage position and restricts the rotation of the stopper to the regulation position, The stopper has a pair of clamping portions that respectively clamp a pair of side wall portions provided at intervals in the rotation axis direction in which the rotation axis extends among the wall portions defining the storage recess at the storage position, and is characterized by a trigger-type liquid ejector.

2. The trigger-type liquid ejector according to claim 1, wherein the stopper is provided with a regulation locking portion that locks to the cylinder at the regulation position.

3. The trigger-type liquid ejector according to claim 1 or 2, wherein the clamping portion is provided with a finger hook portion that protrudes outward in the rotation axis direction.

4. The trigger-type liquid ejector according to any one of claims 1 to 3, wherein the rotation axis extends in the left-right direction orthogonal to the front-rear direction when viewed from the vertical direction.

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