Liquid jetting device

Abstract

To provide a new liquid jetting device capable of suppressing sticking of a content to other materials when carrying.SOLUTION: A liquid jetting device 1 comprises: a pump 14 for sucking and pressure-feeding a content; a nozzle 13 for guiding the content substantially forward; and an operating lever 16 which is attached swingably around a rotation axis L to actuate the pump 14. A nozzle cover 17 is attached to the nozzle 13, and the nozzle cover 17 has a cover-side first engagement part and a cover-side second engagement part for engaging with the operating lever 16. The operating lever 16 has a lever-side first engagement part and a lever-side second engagement part for engaging with the nozzle cover 17. By rotating the operating lever 16 backward to a lower side around the rotation axis L, the nozzle cover 17 is opened by being moved in a base end direction of the nozzle 13. By returning the operating lever 16 forward to an upper side around the rotation axis L, the nozzle cover 17 is closed by being moved in a tip direction of the nozzle 13.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a liquid ejector for ejecting liquid contents in a container body to the outside. [Background technology]

[0002] As a conventional liquid ejector, for example, Patent Document 1 discloses a ejector that ejects the liquid content in a container body from a nozzle by operating a trigger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-131813 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with trigger-type liquid sprayers such as those described in Patent Document 1, there is a need to be able to store them in a bag and carry them around, for example.However, if the nozzle part is exposed, the contents may adhere to the inside of the bag or other items stored in the bag, causing dirt, so there is still room for improvement in this regard.

[0005] An object of the present disclosure is to provide a new liquid ejector that can prevent the contents from sticking to other objects when carried. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the liquid ejector of the present disclosure comprises: [1] A liquid ejector that is attached to a container body and ejects contents contained in the container body to the outside, a pump that sucks and pumps the contents in the container body by pressing an upwardly biased operating member; an attachment cap for attaching the pump to the container body; a nozzle that guides the pressure-fed contents substantially forward; an operating lever attached to be swingable about a rotation axis provided rearward of the pump, and acting on the operating member of the pump to operate the pump; Equipped with a nozzle cover that releasably closes the front of the nozzle is attached to the nozzle, the nozzle cover has a cover-side first engaging portion and a cover-side second engaging portion that engage with the operating lever, the operating lever has a lever-side first engaging portion and a lever-side second engaging portion that engage with the nozzle cover, By rotating the operation lever downward and rearward around the rotation axis, the lever-side first engagement portion moves the cover-side first engagement portion toward the base end of the nozzle, thereby opening the nozzle cover, The nozzle cover is closed by the operating lever returning upward and forward around the rotation axis, causing the lever side second engagement portion to move the cover side second engagement portion toward the tip of the nozzle.

[0007] The liquid ejector of the present disclosure also includes: [2] In the configuration described in [1] above, it is preferable that the cover-side first engagement portion is an engagement rib provided on the nozzle cover and protruding in the left-right direction, and the lever-side first engagement portion is provided on the operating lever and has a pressing surface that presses the cover-side first engagement portion toward the base end by rotating the operating lever downward and rearward around the rotation axis.

[0008] The liquid ejector of the present disclosure also includes: [3] In the configuration described in [1] or [2] above, it is preferable that the cover side second engagement portion is provided on the nozzle cover and is the base end of the cover peripheral wall that surrounds the nozzle from the radial outside, and the lever side second engagement portion is the peripheral portion of the lever opening in the operating lever that allows the nozzle to pass through approximately forward.

[0009] The liquid ejector of the present disclosure also includes: [4] In the configuration described in any one of [1] to [3] above, it is preferable that the nozzle has an elastic part attached to the upper part of the actuating member at the base end and urging the operating lever in a direction returning upward and forward around the rotation axis.

[0010] The liquid ejector of the present disclosure also includes: [5] In the configuration described in any one of [1] to [4] above, it is preferable that the nozzle cover has a slit portion having radially extending slits that covers the nozzle from the front, and a cover peripheral wall that is connected to the outer peripheral edge of the slit portion and surrounds the nozzle from the radially outside, and when the cover peripheral wall moves toward the base end, the slit portion abuts against the front part of the nozzle and the slit portion is opened. [Effects of the Invention]

[0011] According to the present disclosure, a new liquid ejector can be provided that can prevent the contents from sticking to other objects when carried. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a side cross-sectional view of a liquid ejector according to an embodiment of the present disclosure when not in use. [Figure 2] 1 is a front view of a slit portion used in a liquid ejector according to an embodiment of the present disclosure. FIG. [Figure 3] 1 is a side cross-sectional view showing a state in which a nozzle cover is opened by operating an operating lever in a liquid ejector according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a side cross-sectional view showing a state in which the operating lever is further rotated from the state in FIG. 3 to cause the contents to be sprayed out. [Figure 5] 5 is a side cross-sectional view showing a state in which the operation of the operating lever is released from the state shown in FIG. 4. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, a liquid ejector 1 according to an embodiment of the present disclosure will be described in detail with reference to the drawings (FIGS. 1 to 5).

[0014] 1, the liquid sprayer 1 according to this embodiment is fixed to the mouth 3 of a container body 2 having a storage space S for storing contents, and includes a pump 14 that sucks in and pressurizes the contents within the container body 2, an attachment cap 11 that secures the pump 14 and is attached to the outer periphery of the mouth 3, a nozzle 13 that directs and sprays the contents pressurized by the pump 14 to the outside, a nozzle cover 17 that releasably closes the front of the nozzle 13, and an operation lever 16 that is attached to the fixed part 15 of the liquid sprayer 1 so as to be swingable about a rotation axis L located rearward of the pump 14 and that acts on a stem 12 (actuating member) of the pump 14 to operate the pump 14. The nozzle 13 is attached to the top of the stem 12.

[0015] In this specification, claims, and drawings, the up-down direction refers to the up and down directions when the liquid ejector 1 is attached to the container body 2 and in an upright position as shown in FIG. 1. The direction of ejection of the contents (left side in FIG. 1) is the forward direction, and the opposite direction is the rearward direction. The direction perpendicular to the plane of the paper in FIG. 1 is the left-right direction. The radially outward direction refers to the direction away from the central axis O along a line passing through the central axis O of the liquid ejector 1 in FIG. 1 and perpendicular to the central axis O, and the radially inward direction refers to the direction toward the central axis O along this line. The circumferential direction refers to the direction of rotation around the central axis O. In this embodiment, the central axis O of the liquid ejector 1 coincides with the central axes of the container body 2 and the pump 14, but this is not limited thereto. The central axis O2 is the central axis common to the nozzle 13 and the nozzle cover 17, as shown in FIG. 1.

[0016] In this embodiment, the container body 2 defines a storage space S for the contents and is formed by extrusion blow molding a parison made of a synthetic resin material. The container body 2 can be made of a material such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), or polypropylene (PP). In particular, when HDPE is used, a container body 2 with high rigidity and excellent impact resistance can be manufactured. However, the present invention is not limited to this embodiment, and the container body 2 may be formed by, for example, biaxially stretched blow molding, or polyethylene terephthalate (PET) or the like may be used as the material for the container body 2.

[0017] Reference numeral 11 denotes an attachment cap that fixes a pump 14 (described later) and is attached to the mouth portion 3 of the container body 2. The attachment cap 11 has a substantially circular cross section in a plan view, and includes an outer peripheral wall 11b and a top wall 11a that closes the upper part of the outer peripheral wall 11b.

[0018] An internal thread 11c is formed on the inner surface of the outer peripheral wall 11b to threadably engage with an external thread 3a provided on the mouth 3. In the pump 14, a flange 42a extending radially outward from the upper end of the cylinder 42 is sandwiched together with a packing 66 between the top wall 11a and the upper end of the mouth 3, and by threadably engaging the external thread 3a with the internal thread 11c, the attachment cap 11 fixes the pump 14 to the mouth 3 and liquid-tightly seals the mouth 3. Note that instead of threaded engagement, an engagement protrusion protruding radially inward from the outer peripheral wall 11b may be provided so that the attachment cap can be attached to the container body 2 by stoppering.

[0019] The pump 14 includes a cylinder 42, a flange 42a for fixing to the mounting cap 11, a cylindrical stem 12 (actuating member) that activates the pump 14 when pressed down and pressure-feeds the contents in the storage space S of the container body 2 upward, a piston 41 that liquid-tightly seals the inner surface of the cylinder 42 and compresses the contents in the cylinder 42 when the stem 12 is pressed down, a piston guide 43 that guides the piston 41 in a direction along the central axis O, and a biasing spring 94 that biases the stem 12 upward. As will be described later, when a user pulls the pressing portion 91 of the operating lever 16 downward and rearward around the rotation axis L (rotating the operating lever 16 counterclockwise in FIG. 1), the stem 12 of the pump 14 is pressed down and moves downward inside the cylinder 42 together with the piston 41, which is pressed down by the piston guide 43 connected to the stem 12 via the mounting cylinder 43d and the stem 12. The downward movement of the piston 41 compresses the contents in the cylinder 42, causing the ball valve 44 to seat on the valve seat 68 and close the inside of the cylinder 42, so that if the stem 12 is pushed down further in this state, the increased internal pressure in the cylinder 42 will prevent the piston 41 from moving downward. Because the piston 41 is pressed down by the elastic portion at the lower end of the stem 12, the internal pressure in the cylinder 42 deforms the elastic portion of the stem 12, and the inner lower end of the piston 41 moves away from the abutment portion 43e of the piston guide 43. As a result, the interior of the cylinder 42 and the internal space of the stem 12 are connected via the communication hole 43b and the second communication hole 43c.

[0020] The compressed contents in the cylinder 42 are pressure-fed upward through the communication hole 43b and the second communication hole 43c within the internal space of the stem 12. The pressure-fed contents are further guided forward through the nozzle cylinder 33 and the tip nozzle 13a of the nozzle 13, pass through the nozzle hole 13b at the tip of the nozzle cap 13c, and are ejected to the outside from the slit portion 17a of the nozzle cover 17, which has been opened as described below.

[0021] When the spraying of the contents is completed and the user finishes operating the operating lever 16, the piston guide 43 and stem 12 are pushed upward by the biasing force of the biasing spring 94, and the lower end of the inside of the piston 41 again abuts against the abutment part 43e of the piston guide 43, blocking communication between the inside of the cylinder 42 and the internal space of the stem 12. Thereafter, the rise of the piston 41 creates a negative pressure inside the cylinder 42, and the ball valve 44 moves away from the valve seat 68, opening the inside of the cylinder 42, and the contents in the container body 2 are supplied into the cylinder 42 via the pipe P.

[0022] As shown in Fig. 1, the mounting cap 11 is provided with a fixed portion 15. The fixed portion 15 includes an outer tube 15a that is engaged with and fixed to the outer peripheral surface of the connecting tube portion 42b that is erected on the upper surface of the flange 42a, an upper wall 15f that is continuous with the upper end of the outer tube 15a, a middle tube 15e that hangs down from the upper wall 15f on the radially inner side of the outer tube 15a, an inner tube 15d that hangs down from the upper wall 15f on the radially inner side of the middle tube 15e and surrounds the stem 12 from the radially outer side, a guide tube 15c that hangs up from the upper surface of the upper wall 15f and guides the stem 12, and a support portion 15g that extends obliquely upward and rearward from the upper wall 15f and the outer tube 15a. The operating lever 16 is supported near the rear end of the support portion 15g so as to be rotatable about a rotation axis L.

[0023] The operating lever 16 includes a pressing portion 91 that the user presses when operating the lever, side plate portions 92 that are provided on both the left and right sides of the pressing portion 91 and are approximately parallel to the swing direction of the operating lever 16, and a top wall 90 that is provided between the side plate portions 92 at the upper end of the operating lever 16.

[0024] In this embodiment, the operating lever 16 extends forward from the support portion 15g beyond the stem 12, and its tip is directed downward toward the front. When a user pulls (rotates) the pressing portion 91 at the tip of the operating lever 16 downward, the operating lever 16 rotates counterclockwise in FIG. 1 about the rotation axis L located behind the pump 14, and the pressing portion 95 hanging down from the top wall 90 of the operating lever 16 presses the stem 12 (actuating member) downward. The pressing portion 95 of the operating lever 16 presses the stem 12, which is biased upward, against the biasing force of the biasing spring 94, thereby moving the piston guide 43 and piston 41 connected to the stem 12 downward and compressing the contents in the cylinder 42.

[0025] 1, a nozzle 13 is attached to the upper end of the stem 12. The nozzle 13 guides the contents that are pressure-fed upward through the internal flow path of the stem 12 forward, and includes a nozzle cylinder 33 integrated with a resin leaf spring 35 (elastic portion), a tip nozzle 13a attached to the tip (front end) of the nozzle cylinder 33, and a nozzle cap 13c attached to the tip nozzle 13a and provided with a nozzle hole 13b.

[0026] In this embodiment, when the liquid ejector 1 shown in Fig. 1 is in an unused state, a nozzle cover 17 is attached to cover the front end of the nozzle 13. The nozzle cover 17 has a slit portion 17a having slits 17a1 (see Fig. 2) extending radially outward from the central axis O2 and covering the nozzle 13 from the front, a cover ring 17b formed integrally with the slit portion 17a and extending from the outer periphery of the slit portion 17a toward the base end, and a cylindrical cover peripheral wall 17c fixed to the cover ring 17b by undercut engagement and surrounding the nozzle 13 from the radially outer side. A substantially cylindrical engagement rib 17d (cover-side first engagement portion) extending in the left-right direction (perpendicular to the plane of Fig. 1) is formed integrally with the base end of the cover peripheral wall 17c (the end on the stem 12 side along the central axis O2).

[0027] Meanwhile, as shown in FIG. 1, a pressing rib 97 (lever-side first engagement portion) having a pressing surface 97a that slopes upward and rearward when not in use is provided on the inner surface of the side plate portion 92 on the operating lever 16 side. The pressing surface 97a of the pressing rib 97 faces rearward and is sloped so that its position along the central axis O2 moves upward toward the base end of the nozzle cover 17. With this configuration, when the operating lever 16 is rotated downward and rearward about the rotation axis L from the unused state shown in FIG. 1 to the position shown in FIG. 3, the position of the engagement rib 17d in the direction of the central axis O2 that abuts against the pressing surface 97a moves toward the base end. As a result, the cover peripheral wall 17c integrated with the engagement rib 17d and the cover ring 17b attached to the cover peripheral wall 17c also move toward the base end.

[0028] When the cover ring 17b moves toward the base end along the central axis O2, as shown in Figure 3, the outer peripheral edge of the slit portion 17a abuts against the tip end of the nozzle 13, and each slit 17a1 of the slit portion 17a opens circumferentially, displacing the radial center portion forward and opening the front of the nozzle 13.

[0029] A lever opening 93 is provided between the pressing portion 91 of the operating lever 16 and the top wall 90. As shown in Fig. 1, the nozzle 13 passes through this lever opening 93 obliquely upward and forward. The lever opening 93 has an opening width such that no interference occurs between the nozzle 13 and the operating lever 16 when the pressing portion 91 is pulled downward and rearward.

[0030] On the other hand, when pressure on the operating lever 16 is released to stop the spraying of the contents from the state shown in Fig. 4, the stem 12 moves upward due to the biasing force of the biasing spring 94, and the operating lever 16 also returns upward and forward (clockwise in Fig. 5) around the rotation axis L via the pressing portion 95, as shown in Fig. 5. At this time, although the peripheral edge portion of the lever opening 93 (the lever-side second engaging portion) does not interfere with the nozzle 13, it abuts against the base end portion 17c1 (the cover-side second engaging portion) of the cover peripheral wall 17c of the nozzle cover 17, and moves the cover peripheral wall 17c toward the tip of the nozzle 13 along the central axis O2.

[0031] When using the liquid sprayer 1 having the above configuration, starting from an unused state in which the operating lever 16 shown in Fig. 1 has not been operated, for example, the support part 15g of the fixed part 15 is grasped with the thumb, and the pressing part 91 of the operating lever 16 is grasped with the middle finger and ring finger of the same hand, and the pressing part 91 is pulled downward and rearward (counterclockwise in Fig. 1). By this operation, as shown in Fig. 3, the operating lever 16 rotates counterclockwise in Fig. 3 around the rotation axis L near the rear end of the support part 15g of the fixed part 15, and the pressing part 95 of the top wall 90 of the operating arm presses the upper end of the stem 12 downward via the base end of the nozzle cylinder 33.

[0032] 1 and 3, the position of the engagement rib 17d of the nozzle cover 17 in the direction of the central axis O2, which abuts against the pressing surface 97a of the operating lever 16, moves toward the base end. As a result, the peripheral cover wall 17c integrated with the engagement rib 17d and the cover ring 17b attached to the peripheral cover wall 17c also move toward the base end. This movement of the cover ring 17b toward the base end causes the outer peripheral edge of the slit portion 17a to abut against the tip end of the nozzle 13, displacing the slit portion 17a forward and opening the front of the nozzle 13.

[0033] In this way, in this embodiment, by pulling the operating lever 16 downward and backward to spray the contents, the nozzle cover 17 covering the tip side of the nozzle 13 is automatically opened, transitioning the nozzle 13 to a state where the contents can be sprayed out.

[0034] 1 to the open state of the nozzle cover 17 shown in Fig. 3, the top wall 90 of the operating lever 16 presses downward the rear end of the resin leaf spring 35 integrated with the nozzle cylinder 33, causing the resin leaf spring 35 to elastically deform clockwise in the figure around the base end of the nozzle cylinder 33. As a result, a biasing force for temporarily biasing the operating lever 16 upward is accumulated in the resin leaf spring 35.

[0035] When the user further pulls the pressing portion 91 of the operating lever 16 downward and rearward (counterclockwise in FIG. 3) around the rotation axis L from the state shown in FIG. 3, the stem 12 of the pump 14 is pushed downward, and the piston guide 43 and piston 41 also move downward inside the cylinder 42. The downward movement of the piston 41 compresses the contents inside the cylinder 42 and causes them to be pumped upward through the internal space of the stem 12 via the communication hole 43b and the second communication hole 43c. The pumped contents are then guided forward through the nozzle tube 33 and tip nozzle 13a of the nozzle 13 and are ejected to the outside via the nozzle hole 13b at the tip of the nozzle cap 13c.

[0036] In the state shown in Figure 4, pressing the operating lever 16 causes the stem 12 to descend, and the resin leaf spring 35 attached to the upper end of the stem 12 together with the nozzle cylinder 33 moves downward away from the top wall 90. When the operating lever 16 is biased using a conventional method, the operating force is greatest when the operating lever 16 is fully pulled, but in this embodiment, the resin leaf spring 35 is separated downward from the top wall 90 when the operating lever 16 is fully pulled, so no biasing force is applied. Therefore, even if the resin leaf spring 35 is provided, the maximum operating force required to operate the operating lever 16 due to the ejection of the contents does not increase.

[0037] When the spraying of the contents is completed and the user finishes operating the operating lever 16, the piston guide 43 and stem 12 are pushed upward by the biasing force of the biasing spring 94, and the lower end of the inside of the piston 41 again abuts against the abutment part 43e of the piston guide 43, blocking communication between the inside of the cylinder 42 and the internal space of the stem 12. Thereafter, the rise of the piston 41 creates a negative pressure inside the cylinder 42, and the ball valve 44 separates from the valve seat 68 and opens, so that the contents in the container body 2 are supplied into the cylinder 42 via the pipe P. The rise of the piston 41 etc. by the biasing spring 94 returns the liquid sprayer 1 to the state shown in FIG.

[0038] 3, the rear end of the resin leaf spring 35 integrated with the nozzle cylinder 33 abuts against the underside of the top wall 90 of the operating lever 16 again, and the resin leaf spring 35 elastically deforms clockwise in the drawing around the base end of the nozzle cylinder 33. As a result, a biasing force for biasing the operating lever 16 upward is accumulated in the resin leaf spring 35.

[0039] From the state shown in Fig. 3, the operating lever 16 is urged upward by the urging force stored in the resin leaf spring 35, and rotates clockwise in Fig. 3 about the rotation axis L, returning to the state shown in Fig. 1. At this time, the peripheral edge of the lever opening 93 (the lever-side second engaging portion) abuts against the base end 17c1 (the cover-side second engaging portion) of the cover peripheral wall 17c of the nozzle cover 17, moving the cover peripheral wall 17c along the central axis O2 toward the tip of the nozzle 13.

[0040] As the cover peripheral wall 17c moves toward the tip of the nozzle 13, the cover ring 17b attached to the cover peripheral wall 17c also moves toward the tip, so that the slit portion 17a that had been in contact with the front of the nozzle 13 moves away from the nozzle 13 and returns to a state in which it closes the front of the nozzle 13 as shown in Fig. 1. In this way, the liquid sprayer 1 according to this embodiment always automatically closes the nozzle cover 17 arranged in front of the nozzle 13 when the operating lever 16 is not being operated and the liquid sprayer 1 is in an unused state, so that it is possible to effectively prevent the contents from sticking to other objects when carrying a container containing the contents to which the liquid sprayer 1 is attached.

[0041] As described above, this embodiment is a liquid sprayer 1 that is attached to a container body 2 and sprays the contents contained in the container body 2 to the outside, and includes a pump 14 that sucks and pressure-feeds the contents in the container body 2 by pressing an upwardly biased operating member (stem 12), an attachment cap 11 that attaches the pump 14 to the container body 2, a nozzle 13 that directs the pressure-feed contents substantially forward, and an operation lever 16 that is attached so as to be swingable about a rotation axis L provided behind the pump 14 and that acts on the operating member of the pump 14 to operate the pump 14, and a nozzle cover 17 that releasably closes the front of the nozzle 13 is attached to the nozzle 13, and The nozzle cover 17 has a cover-side first engagement portion and a cover-side second engagement portion that engage with the operating lever 16, and the operating lever 16 has a lever-side first engagement portion and a lever-side second engagement portion that engage with the nozzle cover 17, and when the operating lever 16 is rotated downward and rearward about the rotation axis L, the lever-side first engagement portion moves the cover-side first engagement portion toward the base end of the nozzle 13, thereby opening the nozzle cover 17, and when the operating lever 16 returns upward and forward about the rotation axis L, the lever-side second engagement portion moves the cover-side second engagement portion toward the tip of the nozzle 13, thereby closing the nozzle cover 17. With this configuration, when the operating lever 16 is pulled downward and rearward, an operation to spray the contents, the nozzle cover 17 that covers the tip side of the nozzle 13 is automatically opened, and the nozzle 13 can be transitioned to a state where the contents can be sprayed from the nozzle 13. Furthermore, when the operating lever 16 is not being operated and the device is not in use, the nozzle cover 17 located in front of the nozzle 13 is always automatically closed, which effectively prevents the contents from sticking to other objects when carrying a container containing the liquid sprayer 1 attached.

[0042] In this embodiment, the cover-side first engagement portion is an engagement rib 17d that is provided on the nozzle cover 17 and protrudes in the left-right direction, and the lever-side first engagement portion is provided on the operating lever 16 and is configured to have a pressing surface 97a that presses the cover-side first engagement portion toward the base end by rotating the operating lever 16 downward and rearward about the rotation axis L. By adopting such a configuration, the nozzle cover 17 that covers the tip end side of the nozzle 13 can be automatically opened by an operation to spray the contents, thereby transitioning to a state where the contents can be sprayed from the nozzle 13, without increasing the number of parts.

[0043] In this embodiment, the cover-side second engagement portion is provided on the nozzle cover 17 and is the base end portion 17c1 of the cover peripheral wall 17c that surrounds the nozzle 13 from the radial outside, and the lever-side second engagement portion is configured to be the peripheral portion of the lever opening 93 in the operating lever 16, through which the nozzle 13 passes substantially forward. By adopting such a configuration, the nozzle cover 17 is always automatically closed when the operating lever 16 is not being operated and is in an unused state, without increasing the number of parts, and it is possible to effectively prevent the contents from sticking to other objects when carrying a container containing the liquid sprayer 1 attached thereto.

[0044] In this embodiment, the nozzle 13 is attached at its base end to the top of the actuating member (stem 12) and is configured to have an elastic portion (plastic leaf spring 35) that urges the operating lever 16 in a direction returning upward and forward around the rotation axis L. By adopting such a configuration, the operating lever 16 can be urged upward when not in use, and the nozzle cover 17 can be automatically closed without applying additional operating force when the contents are sprayed.

[0045] Furthermore, in this embodiment, nozzle cover 17 has slit portion 17a having radially extending slits 17a1 that covers nozzle 13 from the front, and cover peripheral wall 17c that is continuous with the outer periphery of slit portion 17a and surrounds nozzle 13 from the radially outer side, and is configured so that when cover peripheral wall 17c moves toward the base end, slit portion 17a abuts on the front of nozzle 13 and slit portion 17a is opened. By adopting such a configuration, nozzle cover 17 can be opened and closed by the movement of nozzle cover 17 in the direction along nozzle 13 induced by operation of operating lever 16, so that it is possible to automatically switch between enabling and disabling the ejection of contents from nozzle 13 without increasing the number of parts.

[0046] Although the present disclosure has been described based on various drawings and examples, it should be noted that those skilled in the art can easily make various modifications and alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to cause logical inconsistencies, and multiple components can be combined into one or divided. It should be understood that these modifications and alterations are also included in the scope of the present invention.

[0047] For example, in this embodiment, the cover side first engagement portion is an engagement rib 17d provided on the nozzle cover 17 and protruding in the left-right direction, and the lever side first engagement portion is provided on the operating lever 16 and is configured to have a pressing surface 97a that presses the cover side first engagement portion toward the base end by rotating the operating lever 16 downward and rearward around the rotation axis L, but this is not limited to this form, and various other forms that can achieve the above-mentioned effect may be adopted.

[0048] Furthermore, in this embodiment, the cover-side second engagement portion is provided on the nozzle cover 17 and is the base end portion 17c1 of the cover peripheral wall 17c that surrounds the nozzle 13 from the radial outside, and the lever-side second engagement portion is configured to be the peripheral portion of the lever opening 93 in the operating lever 16 that passes the nozzle 13 approximately forward, but this is not limited to this form and various other forms that can achieve the above-mentioned effect may be adopted.

[0049] In addition, in this embodiment, the nozzle cover 17 is configured to have separate engaging portions (cover-side first engaging portion and lever-side first engaging portion) that move the nozzle cover 17 toward the base end, and engaging portions (cover-side second engaging portion and lever-side second engaging portion) that move the nozzle cover 17 toward the tip end, but this is not limited to this. For example, the nozzle cover 17 may be configured so that the engaging rib 17d provided on the nozzle cover 17 moves within a groove provided in the operating lever 16, thereby moving the nozzle cover 17 toward the base end and the tip end by a single set of engaging portions. [Industrial Applicability]

[0050] According to the present disclosure, it is possible to provide a new liquid ejector 1 that can prevent the contents from sticking to other objects when it is carried. [Explanation of symbols]

[0051] 1 liquid squirt 2 Container body 3 Mouth 3a Male thread 11 Mounting cap 11a Ceiling wall 11b Outer wall 11c Female thread 12 Stem (operating member) 13 nozzles 13a Tip nozzle 13b Nozzle hole 13c Nozzle cap 14 Pump 15 Fixed part 15a outer cylinder 15c Guide tube 15d inner cylinder 15e middle tube 15f upper wall 15g support part 16 Operating lever 17 Nozzle cover 17a Slit section 17a1 slit 17b Covering 17c Cover wall 17c1 (of the cover peripheral wall) base end portion (cover side second engagement portion) 17d Engagement rib (cover side first engagement portion) 31 Fitting tube 33 Nozzle cylinder 35 Resin leaf spring (elastic part) 41 Piston 42 cylinders 42a flange 42b Connecting cylinder part 43 Piston guide 43b Communication hole 43c 2nd communication hole 43d Mounting tube 43e Contact part 44 Ball Valve 66 Gasket 68 Valve seat 90 Ceiling wall 91 Pressing part 92 Side plate part 93 Lever opening (second engagement portion on the lever side) 94 bias spring 95 Pressing part 97 Pressing rib (first engagement part on the lever side) 97a Pressing surface L rotation axis O,O2 center axis P-pipe S Storage space

Claims

1. A liquid ejector that is attached to a container body and ejects contents contained in the container body to the outside, a pump that sucks and pumps the contents in the container body by pressing an upwardly biased operating member; an attachment cap for attaching the pump to the container body; a nozzle that guides the pressure-fed contents substantially forward; an operating lever attached to be swingable about a rotation axis provided rearward of the pump, and acting on the operating member of the pump to operate the pump; Equipped with a nozzle cover that releasably closes the front of the nozzle is attached to the nozzle, the nozzle cover has a cover-side first engaging portion and a cover-side second engaging portion that engage with the operating lever, the operating lever has a lever-side first engaging portion and a lever-side second engaging portion that engage with the nozzle cover, By rotating the operation lever downward and rearward about the rotation axis, the lever-side first engaging portion moves the cover-side first engaging portion toward the base end of the nozzle, thereby opening the nozzle cover, A liquid ejector in which the nozzle cover is closed by the operating lever returning upward and forward around the rotation axis, causing the lever side second engagement portion to move the cover side second engagement portion toward the tip of the nozzle.

2. the cover-side first engagement portion is an engagement rib provided on the nozzle cover and protruding in the left-right direction, 2. The liquid ejector according to claim 1, wherein the lever-side first engagement portion is provided on the operating lever and has a pressing surface that presses the cover-side first engagement portion toward the base end by rotating the operating lever downward and rearward around the rotation axis.

3. the cover-side second engaging portion is provided on the nozzle cover and is a base end portion of a cover peripheral wall that surrounds the nozzle from the radial outside, 3. The liquid ejector according to claim 1, wherein the lever-side second engagement portion is a peripheral edge portion of a lever opening in the operating lever through which the nozzle extends substantially forward.

4. 3. The liquid ejector according to claim 1, wherein the nozzle has a base end attached to an upper portion of the actuating member and has an elastic portion that urges the operating lever in a direction returning upward and forward around the rotation axis.

5. 3. The liquid ejector according to claim 1, wherein the nozzle cover has a slit portion having radially extending slits and covering the nozzle from the front, and a cover peripheral wall that is connected to the outer peripheral edge of the slit portion and surrounds the nozzle from the radially outside, and when the cover peripheral wall moves toward the base end, the slit portion abuts against the front portion of the nozzle and the slit portion is opened.

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