Trigger-type liquid ejector

Abstract

To provide a trigger type liquid ejector which is small and excellent in space efficiency while maintaining operability.SOLUTION: A trigger type liquid ejector 1 of an embodiment according to the invention includes: an ejector body 10 having a pump part 24; a nozzle member 11 formed with an ejection hole 11d for ejecting liquid sent by the pump part 24 forward; a trigger part 12 which is disposed so as to be movable rearward in a state that the trigger part 12 is biased forward and drives the pump part 24; and a cover 14 having a cover body 51 for covering the ejector body 10 and a support part 52 connected to a rear end part of the cover body 51 through a hinge part 55. The support part 52 is configured to be rotatable between a protruding position, where the support part 52 extends rearward from the cover body 51, and a storage position, where a length protruding rearward from the cover body 51 is shorter than that in the protruding position, around the hinge part 55 relative to the cover body 51.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] A trigger-type liquid ejector has been disclosed that includes a ejector body having a pump section, a nozzle member having an ejection hole for ejecting liquid, a trigger section that operates the pump section as it moves back and forth, and a cover that covers the ejector body while exposing the ejection hole (see, for example, Patent Document 1 below).

[0003] In this type of trigger type liquid ejector, to perform the ejection operation, for example, the index finger (or middle finger) is hooked on the trigger portion and the hand is placed around the portion of the ejector body that is located below the cover (for example, the mounting cap, etc.). In this state, when the trigger portion is pulled backward, the pump portion operates as the trigger portion moves backward, and liquid is ejected through the ejection hole. In particular, during the ejection operation, the underside of the rear end portion of the cover (hereinafter referred to as the support portion) is supported by the back of the hand (the portion located between the thumb and index finger), so that it is possible to stably hold the trigger type liquid ejector even when the contents are contained in the container body and the weight is heavy, for example. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-82042 A Summary of the Invention [Problem to be solved by the invention]

[0005] In order to further improve the operability of a trigger-type liquid sprayer, it is possible to secure the area of ​​the support part. However, if the area of ​​the support part is increased, the amount of rearward protrusion of the cover from the sprayer body increases, which may lead to an increase in the size of the trigger-type liquid sprayer. As a result, the space efficiency may decrease during the distribution stage (when displayed in stores, etc.) and when not in use. In addition, the increase in size of the cover may increase the amount of resin required to mold the cover.

[0006] The present invention provides a trigger-type liquid ejector that is small and space-efficient while maintaining operability. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention employs the following aspects. A trigger-type liquid ejector according to one embodiment of the present invention comprises a ejector body having a pump section for ejecting liquid contained in a container body, a nozzle member attached to the front end of the ejector body and having an ejection hole formed therein for ejecting liquid ejected by the pump section forward, a trigger section arranged to be movable rearward in a forward biased state and for driving the pump section, a cover body that covers the ejector body, and a cover having a support section connected to the rear end of the cover body via a hinge section, wherein the support section is configured to be rotatable around the hinge section relative to the cover body between a first position in which it extends rearward from the cover body, and a second position in which the amount of rearward protrusion from the cover body is less than the first position.

[0008] According to this aspect, by moving the support part to the protruding position during the ejection operation, the trigger-type liquid ejector can be supported on the back of the hand via the support part, allowing the user to stably hold the trigger-type liquid ejector and improving operability. On the other hand, by moving the support part to the storage position during distribution or when not in use, the amount of rearward protrusion of the cover from the ejector body can be reduced. This makes it possible to provide a small trigger-type liquid ejector that is space-efficient. In addition, by making the cover smaller, the amount of resin required to mold the cover can be reduced, leading to cost reductions.

[0009] In the trigger-type liquid ejector of the above aspect, it is preferable that the support portion is provided with a first engagement portion that engages with the cover body at the first position to restrict movement of the support portion to the second position. According to this aspect, when an unexpected load acts on the support part, the support part can be prevented from suddenly shifting from the stored position to the protruding position, thereby achieving stable space efficiency during distribution, when not in use, etc.

[0010] In the trigger-type liquid ejector of the above aspect, it is preferable that the cover body is configured to be able to be overcome by the support portion as the support portion moves between the first position and the second position, and that a second engagement portion is provided which engages with the support portion at the second position. According to this aspect, during a spraying operation, it is possible to prevent the support part from unexpectedly moving toward the second position due to a load acting on the support part via the back of the hand, etc. This makes it possible to perform a stable spraying operation.

[0011] In the trigger-type liquid ejector of the above aspect, it is preferable that the cover body is provided with a housing portion that houses the support portion at the second position. According to this aspect, the support portion can be prevented from protruding rearward beyond the cover body when in the storage position. Effect of the Invention

[0012] According to an aspect of the present invention, it is possible to provide a trigger-type liquid ejector that is small and has excellent space efficiency while maintaining operability. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a side view, partially in cross section, of the trigger-type liquid ejector (at the storage position) according to the first embodiment. [Diagram 2] FIG. 2 is a side view, partially in cross section, of the trigger-type liquid ejector (in a projecting position) according to the first embodiment. [Diagram 3] FIG. 2 is a perspective cross-sectional view of a cover according to the first embodiment. [Figure 4] 11 is a partial cross-sectional view of the cover in the protruding position as viewed from above. FIG. [Diagram 5] FIG. 11 is a side view, partially in cross section, of a trigger-type liquid ejector (at a storage position) according to a second embodiment. [Figure 6] FIG. 11 is a side view, partially in cross section, of a trigger-type liquid ejector (in a projecting position) according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the embodiments and modifications described below, the same reference numerals are used to designate corresponding configurations, and the description thereof may be omitted.

[0015] (First embodiment) 1 and 2, the trigger type liquid ejector 1 of this embodiment is capable of ejecting liquid contained in a container body A. The trigger type liquid ejector 1 comprises an ejector body 10, a nozzle member 11, a trigger portion 12, and a cover 14. Unless otherwise specified, each component part of the trigger type liquid ejector 1 is a molded product made of synthetic resin such as an olefin resin.

[0016] The ejector body 10 includes a vertical supply tube portion 20 , an attachment cap 21 , an ejection tube portion 22 , a relay member 23 , a pump portion 24 , and a biasing member 25 .

[0017] Hereinafter, the direction along the axis O1 of the vertical supply tube section 20 (axial direction) is referred to as the up-down direction, and the bottom (not shown) side of the container body A along the up-down direction is referred to as the lower side, and the opposite side is referred to as the upper side. When viewed from the up-down direction, the direction intersecting the axis O1 is referred to as the radial direction. Within the radial direction, the direction in which the vertical supply tube section 20 and the nozzle member 11 are aligned is referred to as the front-rear direction. Within the front-rear direction, the nozzle member 11 side with respect to the vertical supply tube section 20 is referred to as the front side, and the opposite side is referred to as the rear side. Additionally, within the radial direction, the direction perpendicular to the front-rear direction when viewed from the up-down direction is referred to as the left-right direction.

[0018] The vertical supply tube section 20 is circulated with the liquid sucked up from the container body A by the pump section 24. The vertical supply tube section 20 is formed in a multi-stage cylindrical shape with the diameter decreasing toward the top. Specifically, the vertical supply tube section 20 has a small diameter section 20a located at the top and a large diameter section 20b connected to the bottom of the small diameter section 20a. The large diameter section 20b is provided with a flange section 20c that protrudes radially outward.

[0019] The attachment cap 21 is formed in a cylindrical shape extending in the vertical direction. The attachment cap 21 is detachably fastened to the mouth of the container body A with the flange portion 20c sandwiched between the attachment cap 21 and the upper end opening edge of the mouth portion (not shown). The attachment cap 21 and the mouth portion may be fixed to each other by a method other than a screw (for example, fitting, etc.).

[0020] The injection tube portion 22 allows the liquid in the vertical supply tube portion 20 to flow toward the nozzle member 11. The injection tube portion 22 extends forward from the upper end portion of the vertical supply tube portion 20. A valve body (not shown) is provided between the vertical supply tube portion 20 and the injection tube portion 22 to allow the liquid to flow from the vertical supply tube portion 20 to the injection tube portion 22 and to regulate the liquid to flow from the injection tube portion 22 to the vertical supply tube portion 20.

[0021] Relay member 23 connects between injection tube portion 22 and nozzle member 11. Relay member 23 is attached to injection tube portion 22 from the front of injection tube portion 22.

[0022] The pump section 24 stores and pumps the liquid in the container body A in response to the movement of the trigger portion 12. The pump section 24 includes a cylinder 31 and a piston 32. The cylinder 31 is provided in front of the small diameter portion 20a of the vertical supply tube portion 20. The cylinder 31 protrudes on both the left and right sides of the vertical supply tube portion 20 (small diameter portion 20a) and is formed in a bottomed cylindrical shape that opens forward.

[0023] The piston 32 is provided so as to be movable in the front-rear direction relative to the cylinder 31. The piston 32 slides on the inner peripheral surface of the cylinder 31 as it moves back and forth relative to the cylinder 31. The vertical supply tube portion 20 is provided with a valve body (not shown) that allows the flow of liquid from inside the container body A to the cylinder 31 and regulates the flow of liquid from the cylinder 31 to inside the container body A.

[0024] The trigger portion 12 is provided in front of the pump portion 24 so as to be movable back and forth. Specifically, the trigger portion 12 includes a trigger body 12a, a support piece 12b, and a spring receiving portion 12c. The trigger body 12a extends in front of the pump section 24, inclining forward from top to bottom. The trigger body 12a is the part that is gripped when performing a spraying operation, and an index finger or the like is hooked from the front. The front end of the piston 32 is connected to the vertical middle part of the trigger body 12a. That is, the piston 32 moves back and forth in association with the back and forth movement of the trigger body 12a.

[0025] A pair of left and right support pieces 12b are provided on the upper end of the trigger body 12a. The support pieces 12b extend upward on both left and right sides relative to the relay member 23. The upper end of each support piece 12b is supported by the relay member 23 so as to be rotatable about an axis along the left and right direction. Therefore, the trigger portion 12 is configured to be rotatable about an axis along the left and right direction with the upper end of each support piece 12b as a fulcrum.

[0026] The spring receiving portions 12c are provided in pairs on the left and right sides of the trigger body 12a. The spring receiving portions 12c protrude from the trigger body 12a on both the left and right sides. Each spring receiving portion 12c is open upward and backward.

[0027] The biasing member 25 biases the trigger portion 12 forward. The biasing member 25 is formed in a U-shape in a plan view. The biasing member 25 includes a connection portion 25a and a pair of elastic portions 25b.

[0028] The connection part 25a is attached to the upper end part of the vertical supply cylinder part 20 (the boundary part with the injection cylinder part 22). The elastic portions 25b extend forward from both left and right ends of the connecting portion 25a (only one of the elastic portions 25b is shown in FIG. 1). That is, the connecting portion 25a integrally connects the rear ends of the elastic portions 25b to each other. Each elastic portion 25b is disposed on both left and right sides of the vertical supply tube portion 20. In a side view, each elastic portion 25b has an arc shape that protrudes upward. Each elastic portion 25b passes above the cylinder 31 and reaches from the upper end of the vertical supply tube portion 20 to the front of the cylinder 31.

[0029] The front end (lower end) of the elastic part 25b is accommodated in the spring receiving part 12c in front of the cylinder 31. The elastic part 25b is connected to the inner surface of the spring receiving part 12c in the spring receiving part 12c. In the illustrated example, the elastic part 25b is connected to the trigger part 12 by abutting against the rearward facing surface of the inner surface of the spring receiving part 12c. The elastic part 25b is configured to be elastically deformable (flexibly deformable) in a direction perpendicular to the extending direction. In this embodiment, the elastic part 25b flexibly deforms with the rear end as a starting point, so that the front end is elastically displaced in the front-rear direction. Therefore, the elastic part 25b is interposed between the upper end of the vertical supply tube part 20 and the trigger part 12, and biases the trigger part 12 forward.

[0030] The nozzle member 11 is attached to the relay member 23 from the front. The nozzle member 11 is formed in a cylindrical shape with a top that opens to the rear. A top wall portion 11a of the nozzle member 11 is formed with an ejection hole 11b that penetrates the top wall portion 11a in the front-rear direction.

[0031] As shown in FIGS. 1 to 3, the cover 14 has a configuration in which a cover main body 51 and a support portion 52 are integrally formed. The cover body 51 surrounds the portion of the ejector body 10 located above the mounting cap 21 from above, behind and sides, with the nozzle member 11 exposed.

[0032] The cover body 51 is formed in a box shape that opens toward the front. The ejector body 10 is inserted from the front into the inside of the cover body 51 with the nozzle member 11 facing forward. The ejector body 10 is assembled to the cover body 51 by, for example, engagement with a claw or the like within the cover body 51.

[0033] The cover body 51 includes a top wall portion 51a, a rear wall portion 51b, a side wall portion 51c, and a bottom wall portion 51d. The top wall portion 51a extends in the front-rear direction above the ejector body 10. The top wall portion 51a covers the ejector body 10 from above.

[0034] The rear wall portion 51b covers the ejector main body 10 from the rear. The rear wall portion 51b extends from the rear end edge of the top wall portion 51a, slanting backward as it goes downward. The rear wall portion 51b is formed with a storage portion 51f penetrating the rear wall portion 51b in the front-rear direction. The storage portion 51f extends in the up-down direction in the rear wall portion 51b. The lower end opening edge of the storage portion 51f coincides with the lower end edge of the rear wall portion 51b. The upper end opening edge of the storage portion 51f is located above the vertical middle portion of the rear wall portion 51b.

[0035] The side wall portions 51c are disposed on both left and right sides of the ejector body 10. The outer peripheral edges of the side wall portions 51c are continuous with the left and right end edges of the top wall portion 51a and the rear wall portion 51b, respectively. 3 and 4, the bottom wall portion 51d protrudes in a brim-like shape from the lower edges of the rear wall portion 51b and the side wall portion 51c toward the inside of the cover body 51. In a plan view, the bottom wall portion 51d is formed in a U-shape that surrounds the upper end portion of the large diameter portion 20b from the rear and sides.

[0036] The support part 52 is integrally connected to the lower end opening edge of the storage part 51f (the boundary part between the rear wall part 51b and the bottom wall part 51d) via the hinge part 55. The hinge part 55 is integrally formed with the cover body 51 and the support part 52, and is a part formed to be thinner than the cover body 51 and the support part 52, and is configured to be elastically deformable. As a result, the support part 52 is configured to be rotatable about an axis along the left-right direction with the hinge part 55 as a starting point. In this embodiment, the hinge part 55 is formed over the entire area at the base end edge of the support part 52 except for both ends in the left-right direction. However, the hinge part 55 may be provided intermittently in the left-right direction.

[0037] The support portion 52 is formed in a plate shape extending in a cantilever manner from the cover body 51. In this embodiment, the support portion 52 is formed in a semi-elliptical shape with a rounded tip. However, the outer shape of the support portion 52 can be appropriately changed to a rectangular shape, for example.

[0038] The support portion 52 is configured to be rotatable about the hinge portion 55 relative to the cover body 51 between a storage position (see FIG. 1) and a protruding position (see FIG. 2). The storage position is a state in which the support portion 52 is stored in the storage portion 51f. Specifically, in the storage position, the support portion 52 extends in a forward inclined state as it extends upward from the lower end opening edge of the storage portion 51f. The tip portion of the support portion 52 passes through the storage portion 51f and reaches the inside of the cover body 51.

[0039] As shown in FIG. 2 and FIG. 4, the protruding position is a state in which the support portion 52 protrudes rearward from the cover body 51 along the bottom wall portion 51d. In the protruding position, the support portion 52 is disposed with the vertical direction as the thickness direction. In the following description, the surface of the support portion 52 facing downward in the protruding position is described as the first surface, and the surface facing upward is described as the second surface. In the illustrated example, when the support portion 52 is in the protruding position, the first surface is disposed flush with the lower surface of the bottom wall portion 51d, and the second surface is disposed flush with the upper surface of the bottom wall portion 51d. In this embodiment, the support portion 52 is disposed parallel to the front-rear direction in the protruding position, but is not limited to this configuration. It is sufficient that the amount of protrusion of the support portion 52 rearward from the cover body 51 in the protruding position is larger than the amount of protrusion of the support portion 52 rearward from the cover body 51 in the stored position. In this case, the support portion 52 may be disposed at an incline with respect to the front-rear direction, for example, in the protruding position.

[0040] As shown in FIG. 1 and FIG. 3, the movement of the support part 52 to the protruding position is restricted by an engagement part (first engagement part) 61 provided on the cover body 51 at the storage position. The engagement part 61 protrudes inward in the left-right direction from a side edge (an edge facing inward in the left-right direction) of the storage part 51f. When the support part 52 is at the storage position, the engagement part 61 engages (abuts) with the tip part of the support part 52 from the rear of the support part 52. The protruding amount of the engagement part 61 is set to a height that the support part 52 can overcome when the support part 52 is moved to the protruding position (during a rotation operation). Note that, at the storage position, a gap S is provided in the vertical direction between the upper end opening edge of the storage part 51f and the tip part of the support part 52. The gap S functions as a finger insertion space when the support part 52 is rotated.

[0041] As shown in Figs. 2 to 4, ribs (second engagement portions) 62 are formed on the base end edge of the support portion 52 at portions located on both sides in the left-right direction with respect to the hinge portion 55. The ribs 62 rotate around the hinge portion 55 together with the support portion 52 as the support portion 52 moves between the protruding position and the storage position, thereby climbing over the bottom wall portion 51d in the up-down direction. Specifically, when the support portion 52 is in the protruding position, the ribs 62 protrude upward from the second surface of the support portion 52 and extend in the front-rear direction. The front end portion of the ribs 62 protrudes forward from the base end edge of the support portion 52. When the support portion 52 is in the protruding position, the ribs 62 engage with the bottom wall portion 51d from above the bottom wall portion 51d, thereby restricting the movement of the support portion 52 from the protruding position to the storage position. As shown in FIGS. 1 and 3, when the support portion 52 is in the storage position, the rib 62 engages with the bottom wall portion 51d from behind the bottom wall portion 51d, thereby restricting movement of the support portion 52 from the storage position to the protruding position.

[0042] As shown in FIG. 4, at the rear end edge of the bottom wall portion 51d, a clearance portion 65 is formed in a portion located on both sides in the left-right direction with respect to the hinge portion 55. The clearance portion 65 penetrates the bottom wall portion 51d in the up-down direction and opens on the rear end edge of the bottom wall portion 51d. The clearance portion 65 reduces the amount of overlap between the rib 62 and the bottom wall portion 51d, and is located on the movement path of the rib 62 when the support portion 52 rotates. Therefore, as the support portion 52 moves between the protruding position and the retracted position, the base end of the rib 62 passes inside the clearance portion 65 and the tip end passes over the rear end edge of the clearance portion 65, thereby climbing over the bottom wall portion 51d in the up-down direction.

[0043] Next, a case where the trigger type liquid ejector 1 configured as described above is used will be described. In the following description, the initial state is that the support part 52 is in the stored position, and each part of the trigger type liquid ejector 1 is filled with liquid.

[0044] As shown in Figs. 1 to 3, when using the trigger-type liquid ejector 1, first, the support part 52 is moved from the stored position to the protruding position. Specifically, a finger is inserted into the gap S, and the finger is hooked on the second surface of the support part 52. In this state, when the support part 52 is pulled backward, the support part 52 rotates backward with the hinge part 55 as a starting point. Specifically, after the support part 52 climbs over the engagement part 61 backward, the support part 52 further falls backward. Thereafter, the rib 62 climbs over the bottom wall part 51d upward in the process of passing through the relief part 65. As a result, the support part 52 is in the protruding position with the rib 62 engaging with the bottom wall part 51d from above.

[0045] 2, when the support portion 52 moves to the protruding position, the support portion 52 protrudes rearward relative to the cover body 51. As a result, the first surface of the support portion 52 is disposed behind the attachment cap 21 facing downward.

[0046] When performing the liquid ejection operation, the hand is put around the mounting cap 21 with the index finger or the like hooked on the trigger portion 12. In this state, the part of the back of the hand located between the thumb and index finger approaches or abuts against the first surface of the support portion 52 from below. When the trigger portion 12 is pulled backward, the trigger portion 12 rotates around the support piece 12b as a fulcrum, and the trigger portion 12 moves backward. Then, the elastic portion 25b is pushed backward via the spring receiving portion 12c, and the elastic portion 25b is bent and deformed. As a result, the elastic portion 25b is elastically displaced backward as the trigger portion 12 moves backward. As a result, a biasing force is applied to the trigger portion 12 in the forward direction.

[0047] When the trigger portion 12 moves rearward, the piston 32 moves rearward relative to the cylinder 31. Then, the inside of the cylinder 31 is pressurized, and the liquid inside the cylinder 31 is supplied into the vertical supply tube portion 20 (small diameter portion 20a). The liquid supplied into the vertical supply tube portion 20 reaches the relay member 23 through the injection tube portion 22. The liquid that has reached the relay member 23 flows into the nozzle member 11, and is then ejected through the ejection hole 11d.

[0048] When the pulling operation of the trigger portion 12 is released, the trigger portion 12 moves forward due to the restoring force of the elastic portion 25b. Accordingly, the piston 32 moves forward relative to the cylinder 31. This reduces the pressure inside the piston 32. This causes the liquid in the container body A to be sucked up into the vertical supply tube portion 20. The liquid sucked up into the vertical supply tube portion 20 is introduced into the cylinder 31, making it possible to prepare for the next ejection operation.

[0049] As shown in FIG. 1 and FIG. 2, in order to return the support part 52 to the storage position after the end of the ejection operation, the support part 52 is pushed upward. Then, the support part 52 rotates upward from the hinge part 55 as a starting point. In the process of the support part 52 rotating toward the storage position, the rib 62 passes through the relief part 65 and climbs over the bottom wall part 51d downward. Thereafter, by further pushing the support part 52 toward the storage position, the support part 52 climbs over the engagement part 61 forward. As a result, the support part 52 is accommodated in the accommodation part 51f in a state where it is engaged with the engagement part 61. As a result, the support part 52 moves from the protruding position to the storage position. As the support part 52 moves to the storage position, the amount of protrusion of the cover 14 rearward from the attachment cap 21 becomes smaller.

[0050] In this manner, in this embodiment, the support portion 52 is configured to rotate between a protruding position in which it extends rearward relative to the cover body 51 and a retracted position that is disposed forward of the protruding position. According to this configuration, by moving the support part 52 to the protruding position during the ejection operation, the ejection operation can be performed with the trigger type liquid ejector 1 supported on the back of the hand via the support part 52. This allows the trigger type liquid ejector 1 to be stably held, improving operability. On the other hand, by moving the support part 52 to the storage position during distribution or when not in use, the amount of rearward protrusion of the cover 14 from the ejector body 10 can be reduced. This makes it possible to provide a small trigger-type liquid ejector 1 that is space-efficient. Furthermore, by making the cover 13 smaller, the amount of resin required to mold the cover 13 can be reduced, leading to cost reductions, etc.

[0051] In this embodiment, the cover body 51 is provided with the engagement portion 61 that engages with the support portion 52 in the storage position and restricts the movement of the support portion 52 from the storage position to the protruding position. According to this configuration, it is possible to prevent the support part 52 from suddenly shifting from the stored position to the protruding position when an unexpected load acts on the support part 52. This makes it possible to achieve stable space efficiency during distribution, when not in use, etc.

[0052] In this embodiment, the cover body 51 is configured so that the support portion 52 can climb over it, and is provided with the rib 62 that engages with the support portion 52 in the storage position. According to this configuration, during the ejection operation, it is possible to suppress the support part 52 from moving unexpectedly toward the storage position due to a load acting on the support part 52 via the back of the hand, etc. This allows for a stable ejection operation.

[0053] In this embodiment, the cover body 51 is configured to have an accommodating portion 51f that accommodates the support portion 52 in the storage position. According to this configuration, it is possible to prevent the support portion 52 from protruding rearward beyond the cover body 51 when in the stored position.

[0054] Second embodiment In the trigger type liquid ejector 1 shown in FIG. 5 and FIG. 6, the support part 52 includes a base part 100 and an extension part 101. The base part 100 and the extension part 101 are arranged in a direction perpendicular to the surface of the liquid ejector 1 shown in FIG. 5, the base portion 100 is formed in a plate shape extending in the left-right direction. The front end edge of the base portion 100 is rotatably connected to the bottom wall portion 51d via a hinge portion 55. At least both left-right end edges of the base portion 100 protrude outward in the left-right direction relative to the attachment cap 21. The extension portion 101 extends in a cantilever manner from the base portion 100. The cross-sectional shape of the extension portion 101 is formed in an arc shape. However, the cross-sectional shape of the extension portion 101 may be linear.

[0055] The support portion 52 is configured to be rotatable between a storage position and a protruding position via the hinge portion 55. Specifically, when the support portion 52 is in the storage position shown in FIG. 5, the base portion 100 is disposed behind the bottom wall portion 51d and on the same plane as the bottom wall portion 51d. The extension portion 101 extends downward from the base portion 100. In the storage position, the extension portion 101 is disposed following the outer peripheral surface of the attachment cap 21. 6, the base portion 100 is accommodated in an accommodating portion 105 formed in the rear wall portion 51b. The accommodating portion 105 is formed by penetrating the lower end portion of the rear wall portion 51b in the front-rear direction. In the protruding position, the extension portion 101 extends rearward from the rear wall portion 51b.

[0056] The base part 100 is formed with an engagement part 111 that engages with the upper opening edge of the storage part 105 when the base part 100 is in the protruding position. The engagement part 111 protrudes forward from the base part 100. The engagement part 111 is configured to be able to climb over the upper opening edge of the storage part 105 as the support part 52 moves between the storage position and the protruding position.

[0057] In the trigger-type liquid ejector 1 of this embodiment, to move the support part 52 from the stored position to the protruding position, a finger or the like is hooked on the tip part (lower end part) of the support part 52 and the support part 52 is pushed up. Then, the support part 52 rotates about the hinge part 55, and moves upward. Then, the engagement part 111 gets over the edge of the upper end opening of the storage part 105, and the base part 100 is stored in the storage part 105. This causes the support part 52 to move to the protruding position.

[0058] In this embodiment as well, when performing a spraying operation, the index finger or the like is hooked on the trigger portion 12 and the hand is put around the attachment cap 21. At this time, the support portion 52 is supported by the part of the back of the hand located between the thumb and index finger, so that a stable spraying operation can be performed. After the spraying operation is completed, in order to return the support portion 52 to the storage position, the support portion 52 is pushed downward. This causes the support portion 52 to rotate around the hinge portion 55, so that the engagement portion 111 passes over the edge of the upper opening of the storage portion 105. As a result, the support portion 52 moves to the storage position.

[0059] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Addition, omission, substitution, and other modifications of the configuration are possible without departing from the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the scope of the attached claims. In the above embodiment, the trigger portion 12 is configured to be rotatable, but the present invention is not limited to this configuration. The trigger portion 12 may be configured to be slidable as long as it is configured to be movable in the front-rear direction. In the above embodiment, the support portion 52 is configured to be rotatable about an axis along the left-right direction, but the present invention is not limited to this configuration. The support portion 52 may be configured to be rotatable about an axis along the up-down direction or the front-rear direction as long as the amount of protrusion of the support portion 52 rearward from the cover body 51 changes between the stored position and the protruding position. In the above-described embodiment, a configuration in which the first engagement portion is provided on the support portion 52 and the second engagement portion is provided on the cover body 51 has been described, but the present invention is not limited to this configuration. The second engagement portion may be provided on the support portion and the first engagement portion may be provided on the cover body 51.

[0060] In the above-described embodiment, the first surface of the support portion 52 is formed as a flat surface, but the present invention is not limited to this configuration. The first surface of the support portion 52 may be formed as a curved surface or the like. In the above embodiment, the cover body 51 and the support portion 52 are integrally formed via the hinge portion 55, but the present invention is not limited to this configuration. The cover body 51 and the support portion 52 may be connected via a separate hinge portion 55. In the above embodiment, the support portion 52 is connected to the lower edge of the rear wall portion 51b, but the present invention is not limited to this configuration. The support portion 52 may be connected to the rear end portion of the cover body 51 (for example, a portion located rearward of the axis O1).

[0061] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0062] 1: Trigger-type liquid ejector 10: Squirt body 11: Nozzle material 11d:Blowout hole 12: Trigger section 14: Cover 24: Pump section 51: Cover body 51f: Storage area 52: Support part 55: Hinge part 61: Engagement portion (second engagement portion) 62: Rib (first engagement portion) 90: Rib (first engagement portion) A: Container body

Claims

1. A jet body having a pump portion for pumping out the liquid contained in the container body; a nozzle member attached to a front end of the ejector body and having an ejection hole formed therein for ejecting the liquid delivered by the pump portion forward; a trigger portion that is arranged to be movable rearward in a forward biased state and drives the pump portion; A cover body that covers the ejector body, and a cover having a support part connected to a rear end part of the cover body via a hinge part, The support portion is configured to be rotatable around the hinge portion with respect to the cover body between a first position in which the support portion extends rearward from the cover body and a second position in which the support portion protrudes rearward from the cover body by a smaller amount than the first position, A trigger-type liquid ejector in which the cover body is configured so that the support portion can be overcome as the support portion moves between the first position and the second position, and a second engagement portion is provided which engages with the support portion at the second position.

2. The trigger-type liquid ejector according to claim 1 , wherein the support portion is provided with a first engagement portion that engages with the cover body at the first position to restrict movement of the support portion to the second position.

3. 3. The trigger type liquid ejector according to claim 1, wherein the cover body is provided with a housing portion that houses the support portion at the second position.

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