Trigger type liquid spray

Abstract

To make this device comprise tamper-evidence function even if using no shrink labels or so.SOLUTION: This spray comprises a spray body 11 and a nozzle member 20, where the spray body comprises a vertical supply cylinder part 12 extending vertically to suck the liquid in a container body W, and a trigger mechanism T, having a trigger part 15 disposed to be movable rearward in a condition of energization ahead of the vertical supply cylinder part, and circulating the liquid from inside the vertical supply cylinder part toward the spray hole by a rearward movement of the trigger part, and where the nozzle member comprises a nozzle body 22 having a spray hole 26a, a lid member 34 provided in the nozzle body to be movable to block the spray hole from ahead, and a regulation member 24 with the joint of a breakable weakened part 42. The lid member has an operation part operated when a user moves the lid member to the nozzle body, and the regulation member comes in contact with, or approaches, the operation part, so that the operation part may be inoperable and is removed when the weakened part is broken.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Conventionally, as shown in Patent Document 1 below, a trigger-type liquid ejector has been known which comprises a ejector body which is attached to a container body containing liquid, and a nozzle member which is attached to the front end of the ejector body and has an ejection hole formed therein for ejecting liquid forward, the nozzle member comprising a nozzle body with the ejection hole formed therein, and a lid member which is movably mounted on the nozzle body and closes the ejection hole from the front, and the lid member is formed with an operating portion which a user operates when moving the lid member relative to the nozzle body. In this type of trigger-type liquid ejector, the entire device may be covered with, for example, a shrink label so that consumers at the store can easily determine whether the device is unopened or not (tamper evidence function). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-204989 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if a shrink label, for example, is used to provide a tamper-evident function, it is necessary to cover the trigger-type liquid sprayer with the shrink label after filling the content, which requires equipment, materials, and labor, making it difficult to keep costs down.

[0005] The present invention provides a trigger-type liquid ejector that can be provided with a tamper-evident function without using a shrink label or the like. [Means for solving the problem]

[0006] a trigger mechanism for causing liquid to flow from within the vertical supply tube section toward the nozzle hole by moving the trigger section toward the rear; and a nozzle body for attaching to a container body containing liquid and a front end of the nozzle body and a vertical supply tube section for sucking up liquid from within the container body and a trigger mechanism for causing liquid to flow from within the vertical supply tube section toward the nozzle hole by moving the trigger section toward the front. The nozzle member includes a nozzle body having the nozzle hole, a cover member movably attached to the nozzle body and blocking the nozzle hole from the front, and a regulating member to which a breakable weakened portion is connected. The cover member is formed with an operating portion that is operated by a user when moving the cover member relative to the nozzle body, and the regulating member abuts or comes into close proximity to the operating portion so as to render the operating portion inoperable, and is removed when the weakened portion is broken.

[0007] Since the restricting member abuts or comes close to the operating unit so that the operating unit cannot be operated, and the restricting member is removed when the weakened portion is broken, the ejection hole is kept blocked by the lid member until the weakened portion is broken, and when the weakened portion is broken and the restricting member is removed, the ejection hole can be opened by operating the operating unit. Therefore, consumers can easily determine whether the product is unopened or not at the store based on the presence or absence of the restricting member, and a tamper evidence function can be provided without using a shrink label or the like.

[0008] A front end of the regulating member may be located at the same position in the front-rear direction as or forward of a front end surface of the operating portion.

[0009] Since the front end of the restricting member is located at the same position in the fore-and-aft direction as the front end face of the operating unit, or forward, the restricting member effectively obstructs operation of the operating unit from the front, thereby ensuring the provision of a tamper evidence function.

[0010] The weakened portion may connect the nozzle body or the cover member to the restricting member.

[0011] Since the weakened portion connects the nozzle body or the cover member to the regulating member, the regulating member is connected to an existing part rather than a newly installed part via the weakened portion, thereby reliably reducing costs.

[0012] The restricting member may cover at least a portion of the operating portion.

[0013] Since the restricting member covers at least a portion of the operating unit, the restricting member effectively impedes operation of the operating unit, thereby ensuring the provision of a tamper evidence function. Effect of the Invention

[0014] According to the present invention, a tamper evidence function can be provided without using a shrink label or the like. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a vertical cross-sectional view of a trigger type liquid ejector shown as a first embodiment. [Diagram 2] FIG. 2 is a partially enlarged view of the trigger-type liquid ejector of FIG. 1. [Diagram 3] FIG. 3 is a front view of the nozzle member of FIG. [Figure 4] FIG. 6 is a partially enlarged vertical cross-sectional view of a trigger-type liquid ejector shown as a second embodiment. [Diagram 5] 5 is a front view of the cover member and the restricting member of FIG. 4. [Figure 6] FIG. 11 is a partially enlarged vertical cross-sectional view of a trigger-type liquid ejector shown as a third embodiment. [Figure 7] 7 is a front view of the restricting member and the covering member of FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] A first embodiment of the trigger type liquid ejector will be described below. As shown in Fig. 1, the trigger type liquid ejector 1 is attached to a container body W containing liquid, and includes an ejector body 11 having a vertical supply tube part 12 that sucks up the liquid in the container body W, and a nozzle member 20 in which an ejection hole 26a for ejecting the liquid is formed.

[0017] In this embodiment, the direction along the central axis O1 of the vertical supply tube portion 12 is referred to as the vertical direction, the container body W side along the vertical direction is referred to as the lower side, 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 tube portion 12 is referred to as the front side, and the opposite side is referred to as the rear side. When viewed from the vertical direction, the direction perpendicular to the front-rear direction is referred to as the left-right direction.

[0018] The ejector body 11 is equipped with a vertical supply tube section 12 extending in the vertical direction, an ejection tube section 13 arranged in front of the vertical supply tube section 12 and directing the liquid in the vertical supply tube section 12 toward the ejection hole 26a, a trigger mechanism T having a trigger section 15 arranged in front of the vertical supply tube section 12 so as to be movable rearward in a forward biased state, and a cover body C that integrally covers the vertical supply tube section 12, the ejection tube section 13, and a cylinder 14a described later from above, behind, and from the left and right directions.

[0019] The vertical supply tube 12 is formed in a multi-stage tube shape including a large diameter portion 12a and a small diameter portion 12b extending upward from the large diameter portion 12a. A mounting tube 16 is attached to the large diameter portion 12a and is attached to the mouth of the container body W. A pipe 17 is fitted into the small diameter portion 12b. The lower end opening of the pipe 17 is located at the bottom of the container body W when the mounting tube 16 is attached to the mouth. A suction valve 18 is disposed in the upper end of the small diameter portion 12b. The suction valve 18 closes when the inside of the cylinder 14a described later is pressurized to block communication between the inside of the pipe 17 and the inside of the injection tube 13, and opens when the pressure is reduced to communicate between the inside of the pipe 17 and the inside of the injection tube 13.

[0020] The injection tube portion 13 extends forward from the vertical supply tube portion 12 , and its inside communicates with the interior of the vertical supply tube portion 12 . Trigger portion 15 extends downward from injection tube portion 13 and is disposed so as to be movable rearward in a forward biased state. Trigger portion 15 extends forward as it moves downward.

[0021] Trigger mechanism T, by moving trigger portion 15 rearward, introduces liquid from inside vertical supply tube portion 12 into injection tube portion 13, and causes liquid to flow from inside injection tube portion 13 toward nozzle hole 26a. The trigger mechanism T includes a piston 14b that moves back and forth in conjunction with the trigger portion 15, a cylinder 14a into which the piston 14b is inserted and whose interior is connected to the vertical supply tube portion 12, and an elastic member 43 that urges the trigger portion 15 forward.

[0022] The cylinder 14a extends in the front-rear direction and opens forward. The cylinder 14a is formed separately from the vertical supply tube portion 12 and is attached to the front surface of the vertical supply tube portion 12. A piston 14b is fitted in the cylinder 14a so as to be slidable back and forth from its front end opening toward the rear. A trigger portion 15 is connected to the front end of the piston 14b, and the piston 14b is moved back and forth relative to the cylinder 14a as the trigger portion 15 moves back and forth, thereby pressurizing and depressurizing the inside of the cylinder 14a. The positions of the centers of the cylinder 14a, the piston 14b, and the trigger portion 15 in the left-right direction are aligned with each other.

[0023] A pair of elastic members 43 are arranged to sandwich injection tube portion 13 in the left-right direction. The upper end of each elastic member 43 is fixed to injection tube portion 13, and the lower end of each elastic member 43 is fixed to trigger portion 15. Elastic members 43 are made of a synthetic resin material.

[0024] The nozzle member 20 is attached to the front end of the ejector body 11 via a connecting member 19. The ejection hole 26a opens forward. Hereinafter, a direction intersecting the central axis O2 of the ejection hole 26a when viewed from the front-rear direction will be referred to as a nozzle radial direction, and a direction circumferential around the central axis O2 will be referred to as a nozzle circumferential direction.

[0025] 2, connecting member 19 includes a base plate 19a whose front and back surfaces face the front-rear direction and closes the front-end opening of injection tube portion 13, a first fitting tube 19b that protrudes rearward from the rear surface of base plate 19a and is fitted onto injection tube portion 13, and a second fitting tube 19c and a cylinder tube 19d that protrude forward from the front surface of base plate 19a.

[0026] The first fitting tube 19b is fitted onto the front portion of the injection tube portion 13. The second fitting tube 19c and the cylinder tube 19d are arranged coaxially with the central axis O2 of the ejection hole 26a. The cylinder tube 19d is located on the inside of the second fitting tube 19c in the nozzle radial direction. A liquid outflow hole 19f is formed in a portion of the substrate 19a that faces the front end opening of the injection tube portion 13 and is located on the inside of the cylinder tube 19d in the nozzle radial direction, and the injection tube portion 13 and the second fitting tube 19c communicate with each other through the liquid outflow hole 19f.

[0027] The nozzle member 20 includes a nozzle body 22, a valve body 23, a biasing member 32, a cover member 34, and a restricting member 24. It is noted that the nozzle member 20 does not necessarily have to include the valve body 23 and the biasing member 32.

[0028] The nozzle body 22 is formed with a valve chamber 45 that connects the interior of the vertical supply cylinder portion 12 with the ejection hole 26a, and the ejection hole 26a. It is to be noted that the nozzle body 22 does not necessarily need to be provided with the valve chamber 45. The nozzle body 22 includes a fixed cylinder 22 a , a valve seat plate 25 , a sliding cylinder portion 30 , a nozzle shaft portion 28 , a cap mounting cylinder portion 31 , and a covering wall portion 47 .

[0029] The fixed cylinder 22 a is fitted onto the outside of the second fitting cylinder 19 c of the connecting member 19 . The valve seat plate 25 is formed in a plate shape with the front and back surfaces facing the front-rear direction and covers the front end opening of the fixed cylinder 22a. The valve seat plate 25 is formed in an annular shape. The valve body 23 described later is seated on the peripheral edge of the opening on the rear surface of the valve seat plate 25 so as to be movable rearward. The sliding cylinder portion 30 protrudes rearward from the valve seat plate 25 and is fitted into the front end portion of the second fitting cylinder 19c.

[0030] The nozzle shaft portion 28 protrudes forward from the valve seat plate 25 . The cap mounting cylinder 31 surrounds the nozzle shaft 28 from the outside in the nozzle radial direction. The nozzle tip 26 is fitted into the cap mounting cylinder 31 to cover the front end face of the nozzle shaft 28 from the front. An ejection hole 26a is formed in the front wall of the nozzle tip 26. A communication passage that communicates the ejection hole 26a with the inside of the valve seat plate 25 is provided between the inner surface of the nozzle tip 26 and the outer surface of the nozzle shaft portion 28.

[0031] The covering wall portion 47 is formed in a cylindrical shape that protrudes forward from the valve seat plate 25. The covering wall portion 47 surrounds the cap mounting cylindrical portion 31 from the outside in the nozzle radial direction. Both upper and lower ends of the covering wall portion 47 are provided with cutout portions 47a, 47b that are recessed toward the rear. The upper cutout portion 47a provided at the upper end of the covering wall portion 47 is larger in the left-right direction than the lower cutout portion 47b provided at the lower end of the covering wall portion 47.

[0032] Here, the foaming tube 33 is fitted to the cap mounting tube 31. The foaming tube 33 is disposed in front of the nozzle hole 26a and surrounds the nozzle hole 26a from the outside in the nozzle radial direction. The foaming tube 33 is formed with an outside air introduction hole 37 for introducing outside air to the inside. The outside diameter of the foaming tube 33 is smaller than the inside diameter of the covering wall 47, and an annular space with the outside air introduction hole 37 opening is provided between the outer peripheral surface of the foaming tube 33 and the inner peripheral surface of the covering wall 47. The annular space can be communicated with the outside through the front end opening and the cutouts 47a and 47b of the covering wall 47. The foaming tube 33 may not be provided.

[0033] Valve element 23 is disposed coaxially with central axis O2 inside second fitting cylinder 19c of connecting member 19. The inside of second fitting cylinder 19c forms a valve chamber 45 that connects the interior of injection cylinder portion 13 with ejection hole 26a and in which valve element 23 is disposed. That is, valve element 23 is disposed in valve chamber 45, blocks communication between valve chamber 45 and ejection hole 26a, and connects valve chamber 45 and ejection hole 26a when the internal pressure of valve chamber 45 exceeds a predetermined value.

[0034] The valve body 23 is biased forward by the biasing member 32 and is provided in the valve chamber 45 so as to be movable backward. The valve body 23 is seated on the valve seat plate 25 of the nozzle body 22 and blocks communication between the ejection hole 26a and the inside of the valve chamber 45. A small diameter piston portion 23a is formed in the rear half of the valve body 23. A large diameter piston portion 23b is formed in the front half of the valve body 23. The valve body 23 applies the pressure of the liquid introduced into the valve chamber 45 through the liquid outlet hole 19f to the small diameter piston portion 23a and the large diameter piston portion 23b. When this pressure reaches a certain level or more, the valve body 23 retreats due to the difference in pressure-receiving area between the small diameter piston portion 23a and the large diameter piston portion 23b, and the ejection hole 26a communicates with the inside of the valve chamber 45.

[0035] The cover member 34 is movably provided on the nozzle body 22 and closes the ejection hole 26a from the front. The cover member 34 is connected to the nozzle body 22 so as to be rotatable forward. The cover member 34 closes the front end opening of the foam-forming cylinder 33, and in this embodiment, also closes the front end opening of the covering wall portion 47.

[0036] As shown in Figures 2 and 3, the cover member 34 comprises a main body portion 38 that fits into the covering wall portion 47, a connecting piece 39 that protrudes upward from the main body portion 38 and is positioned within the upper cutout portion 47a, and an operating portion 40 that is operated by the user when moving the cover member 34 relative to the nozzle body 22.

[0037] The connecting piece 39 is connected to the covering wall portion 47 so as to be rotatable about a rotation axis extending in the left-right direction. Both left-right ends of the connecting piece 39 are respectively connected to two peripheral end faces of the inner surface of the upper cutout portion 47a that face each other in the left-right direction. The operating unit 40 protrudes downward from the main body 38 and is disposed in the lower cutout 47b. The operating unit 40 protrudes downward from the covering wall 47. The operating unit 40 is formed to have the same size as the lower cutout 47b in the left-right direction, and is detachably fitted into the lower cutout 47b.

[0038] A breakable weakened portion 42 is connected to the restricting member 24. The restricting member 24 abuts against or is close to the operating portion 40 so that the operating portion 40 becomes inoperable, and is removed when the weakened portion 42 is broken. The restricting member 24 covers at least a portion of the operating portion 40. The front end portion of the restricting member 24 is located at the same position in the front-rear direction as the front end surface of the operating portion 40, or forward. The weakened portion 42 connects the restricting member 24 to the nozzle body 22 or the cover member 34.

[0039] In the illustrated example, the restricting member 24 is formed in a half-cylinder shape that extends in the front-rear direction and opens upward. The restricting member 24 covers the lower cutout portion 47b provided at the lower end portion of the covering wall portion 47 from below the covering wall portion 47. The restricting member 24 covers the operating unit 40 from three directions, namely, below and both left and right directions. The restricting member 24 is formed integrally with the nozzle body 22. The restricting member 24 is connected to the opening peripheral edge of the lower cutout portion 47b in the outer circumferential surface of the covering wall portion 47 via weakened portions 42. A plurality of weakened portions 42 are provided at both left and right ends of the upper end opening edge of the restricting member 24, spaced apart in the front-rear direction. The rear end opening edge of the restricting member 24 is open so that the user can hook his / her finger thereon. The rear end of the restricting member 24 extends downward toward the rear. The rear end of the restricting member 24 is located rearward of the operating unit 40.

[0040] Next, the operation of the trigger type liquid ejector 1 configured as above will be described. It is assumed that liquid is filled into each part of the ejector body 11 by operating the trigger portion 15 multiple times.

[0041] First, a finger is hooked on the rear end opening edge of the restricting member 24, and the restricting member 24 is pulled down relative to the nozzle body 22 to break the weakened portion 42 and remove the restricting member 24. This causes the operating portion 40 of the cover member 34 to be opened. Next, the operating portion 40 is operated to rotate the cover member 34 upward about the rotation axis extending in the left-right direction, thereby opening the ejection hole 26a and the inside of the foam-forming cylinder 33.

[0042] Then, when the trigger portion 15 is moved backward and the piston 14b is moved backward relative to the cylinder 14a while elastically deforming the elastic member 43, the inside of the cylinder 14a is pressurized and the contents in the cylinder 14a try to rise inside the vertical supply tube portion 12. As a result, the suction valve 18 is closed, the communication between the inside of the pipe 17 and the inside of the injection tube portion 13 is blocked, the inside of the injection tube portion 13 is pressurized, and the liquid is supplied to the valve chamber 45 through the liquid outlet hole 19f. When the internal pressure of the valve chamber 45 reaches a certain level or higher, the valve body 23 moves backward while elastically deforming the biasing member 32 due to the difference in the pressure-receiving area between the small diameter piston portion 23a and the large diameter piston portion 23b, the ejection hole 26a communicates with the inside of the valve chamber 45, and the liquid is ejected from the ejection hole 26a into the foam-forming tube 33.

[0043] At this time, the pressure inside the foam-forming cylinder 33 becomes negative, 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 and foams into bubbles, which are then ejected from the front end opening of the foam-forming cylinder 33. The liquid ejected from the ejection hole 26a into the foam-forming cylinder 33 is in the form of mist, and for example, this mist of liquid collides with the inner peripheral surface of the foam-forming cylinder 33 inside the foam-forming cylinder 33, causing the flow of the liquid to become turbulent and mixed with the outside air to become bubbles.

[0044] Then, when the internal pressure of the valve chamber 45 decreases, the valve element 23 is moved forward by the forward biasing force of the biasing member 32. Then, the valve element 23 is seated on the valve seat plate 25 of the nozzle body 22, and communication between the valve chamber 45 and the ejection hole 26a is blocked. After that, the trigger portion 15 is moved forward by the elastic restoring force of the elastic member 43, and the piston 14b is moved forward relative to the cylinder 14a, and the pressure inside the cylinder 14a is reduced to a negative pressure. This opens the suction valve 18, and the inside of the pipe 17 is connected to the inside of the injection tube portion 13, and the liquid in the container body W flows into the cylinder 14a through the pipe 17.

[0045] As described above, according to the trigger-type liquid ejector 1 of this embodiment, the restricting member 24 comes into contact with or is close to the operating unit 40 so that the operating unit 40 becomes inoperable, and when the weakened portion 42 is broken, the restricting member 24 is removed, so that the ejection hole 26a is kept blocked by the cover member 34 until the weakened portion 42 is broken, and when the weakened portion 42 is broken and the restricting member 24 is removed, the ejection hole 26a can be opened by operating the operating unit 40. Therefore, consumers can easily determine whether the product is unopened or not at the store depending on the presence or absence of the restricting member 24, and a tamper-evident function can be provided without using a shrink label or the like.

[0046] Since the front end of the restricting member 24 is located at the same position in the front-to-rear direction as the front end face of the operating unit 40 or forward, the restricting member 24 effectively obstructs operation of the operating unit 40 from the front, thereby ensuring the provision of a tamper evidence function.

[0047] Since the weakened portion 42 connects the nozzle body 22 or the cover member 34 to the regulating member 24, the regulating member 24 is connected to an existing part rather than to a newly installed part via the weakened portion 42, thereby reliably reducing costs.

[0048] Since the restricting member 24 covers at least a portion of the operating unit 40, the restricting member 24 effectively impedes operations on the operating unit 40, thereby ensuring the provision of a tamper evidence function.

[0049] Next, a trigger type liquid ejector 2 according to a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described.

[0050] The trigger-type liquid ejector 2 of this embodiment is provided with a regulating member 51 that is fitted to the nozzle body 22. The regulating member 51 is formed in a cylindrical shape that extends in the front-rear direction. The front end of the regulating member 51 is located forward of the lid member 34. The regulating member 51 covers the operating part 40 from three directions, namely, below and both sides in the left-right direction. A plurality of weakened parts 42 are provided at intervals in the nozzle circumferential direction, and connect the outer peripheral surfaces of the main body part 38 and the operating part 40 of the lid member 34 to the inner peripheral surface of the regulating member 51. The regulating member 51 is formed integrally with the lid member 34. The trigger type liquid ejector 2 according to this embodiment has the same effects as the trigger type liquid ejector 1 described above.

[0051] Next, a trigger type liquid ejector 3 according to a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described.

[0052] The trigger-type liquid ejector 3 of this embodiment is provided with a restricting member 52 that covers the operating part 40 from both the front and rear directions and from below. The regulating member 52 includes a front wall 52a that covers the front end surface of the operating unit 40, a lower wall 52b that extends rearward from the lower end of the front wall 52a and covers the lower edge of the operating unit 40, and a rear wall 52c that extends downward from the rear end of the lower wall 52b. The front and rear surfaces of the front wall 52a and the rear wall 52c face the front-rear direction, and the front and rear surfaces of the lower wall 52b face the up-down direction. A recess is formed in the front part of the upper surface of the lower wall 52b, and the lower end of the operating unit 40 is inserted into the recess. As a result, the lower end of the operating unit 40 is covered by the regulating member 52 in both the front-rear direction and from below. A through hole is formed in the lower end of the front wall 52a, which penetrates in the front-rear direction and communicates with the recess in the front-rear direction. The restricting member 52 is connected via a weakened portion 42 to a covering member 53 attached to the nozzle body 22 .

[0053] The covering member 53 includes a main plate portion 53a that covers the entire front end surface of the cover member 34, and a mounting plate portion 53b that extends rearward from the upper end portion of the main plate portion 53a and is engaged with the upper end portion of the nozzle body 22 in a state in which rotation in the nozzle circumferential direction is restricted. The front and back surfaces of the main plate portion 53a face in the front-rear direction, and the front and back surfaces of the mounting plate portion 53b face in the up-down direction. The covering member 53 is formed integrally with the restricting member 52. A lower edge of the main plate portion 53a and an upper edge of the front wall 52a of the restricting member 52 are connected via weakened portions 42. A plurality of weakened portions 42 are provided at intervals in the left-right direction.

[0054] When the rear wall 52c is operated to lower the restricting member 52, the weakened portion 42 is broken and the restricting member 52 is removed. This opens the operating portion 40 of the cover member 34. Thereafter, when the covering member 53 is pulled forward relative to the nozzle body 22, the covering member 53 is removed from the nozzle body 22. The trigger type liquid ejector 3 according to this embodiment has the same effects as the trigger type liquid ejector 1 described above.

[0055] The technical scope of 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.

[0056] The operating portion 40 may protrude from the main body portion 38 in a direction other than downward.

[0057] In addition, within the scope of the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described embodiments and variations may be combined as appropriate.

[0058] For example, aspects of the present invention are as follows. <1> An ejector body that is attached to a container that contains a liquid; a nozzle member attached to a front end of the ejector body and having an ejection hole for ejecting liquid forward; The ejector body includes: A vertical supply tube portion that extends in a vertical direction and sucks up the liquid in the container body; a trigger mechanism including a trigger portion disposed in front of the vertical supply tube portion and movable rearward in a forward biased state, the trigger portion moving rearward to cause liquid to flow from inside the vertical supply tube portion toward the nozzle hole, The nozzle member is a nozzle body in which the ejection hole is formed; a cover member that is movably provided on the nozzle body and closes the nozzle hole from the front; a restricting member to which a breakable weakened portion is connected; The cover member is formed with an operating portion that is operated by a user when moving the cover member relative to the nozzle body, The regulating member abuts against or is close to the operating portion so as to render the operating portion inoperable, and is removed when the weakened portion is broken. <2> The front end of the regulating member is located at the same position in the front-rear direction as the front end surface of the operating portion, or is located forward of the front end surface of the operating portion. <1> 2. A trigger-type liquid ejector as described above. <3> The weakened portion connects the nozzle body or the cover member to the regulating member. <1> or <2> 2. A trigger-type liquid ejector as described above. <4> The restricting member covers at least a part of the operation unit. <1> from <3> 13. A trigger-type liquid ejector according to any one of claims 1 to 12. [Explanation of symbols]

[0059] 1, 2, 3 Trigger Liquid Squirter 11 Squirt body 12 Vertical supply tube 15 Trigger section 20 Nozzle member 22 Nozzle body 24, 51, 52 Regulatory members 26a Spout hole 34 Lid member 40 Control section 42 Weakened part T Trigger Mechanism W Container Body

Claims

1. An ejector body that is attached to a container that contains a liquid; a nozzle member attached to a front end of the ejector body and having an ejection hole for ejecting liquid forward; The ejector body includes: A vertical supply tube portion that extends in a vertical direction and sucks up the liquid in the container body; a trigger mechanism including a trigger portion disposed in front of the vertical supply tube portion and movable rearward in a forward biased state, the trigger portion moving rearward to cause liquid to flow from inside the vertical supply tube portion toward the nozzle hole, The nozzle member is a nozzle body in which the ejection hole is formed; a cover member that is movably provided on the nozzle body and closes the nozzle hole from the front; a restricting member to which a breakable weakened portion is connected; The cover member is formed with an operating portion that is operated by a user when moving the cover member relative to the nozzle body, The regulating member abuts against or is close to the operating portion so as to render the operating portion inoperable, and is removed when the weakened portion is broken.

2. 2. The trigger-type liquid ejector according to claim 1, wherein the front end of the regulating member is located at the same position in the front-rear direction as or forward of the front end face of the operating portion.

3. 3. The trigger type liquid ejector according to claim 1, wherein the weakened portion connects the nozzle body or the cover member to the restricting member.

4. The trigger type liquid ejector according to claim 1 , wherein the restricting member covers at least a part of the operating portion.

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