JP4863289B2 - Liquid ejector - Google Patents

Description

  The present invention relates to a liquid ejector.

  Various liquid ejectors have been proposed in which a pump dispenser is attached to the opening of a container and the liquid contents inside the container are discharged or sprayed. (For example, see Patent Document 1)

The liquid ejector includes a cylindrical pump body, a piston that is reciprocally inserted into the pump body, a stem that extends upward from the piston, a top end of the pump body that is closed, and the stem that is reciprocally movable. An upper cap having a guide hole to be inserted, an ejector head connected to the upper end of the stem and communicating with a discharge nozzle, and a container cap for mounting and holding the pump main body on the container, and the pump by moving the ejector head up and down It is configured to eject the liquid in the mounted container body by the action of the mechanism.
JP 2001-247146 A

  The above-described conventional liquid ejector is configured to push down the ejector head and screw it onto the upper cap when not in use, in order to prevent unnecessary ejection of liquid by inadvertently pushing down the ejector head. . By configuring in this way, the operation of the ejector head can be prevented when not in use or the like, and the above inconvenience can be reliably prevented. However, after use, the ejector head must be screwed in order to achieve the locked state, and the operation is troublesome in that it must be unscrewed during use.

  The present invention has been made in view of the above points, and can prevent a liquid ejection lock state from appearing and prevent the ejection head from being inadvertently pushed down when not in use. Also, the liquid ejection lock state and the unlocked state can be prevented. We propose a liquid ejector that can be switched easily and easily.

  The liquid ejector of the present invention includes a container body, a dispenser, and a shoulder cover.

  The container body is formed of a synthetic resin or the like, and is used in the form of a bottle in which the mouth and neck portion is erected from the upper end of the cylindrical trunk portion via the shoulder portion. Various cylindrical shapes such as a cylindrical shape and an elliptical cylindrical shape can be adopted as the shape of the body portion, but it is preferable in terms of appearance and handling if an outer shape combined with the outer shape of the shoulder cover is selected.

  The dispenser is attached to the mouth and neck of the container body, protrudes so that the ejection head can be pushed down at the upper end in an upward biased state, sucks up the liquid in the container body by the vertical movement of the ejection head, and ejects from the ejection port of the ejection head The liquid ejection mechanism can be selected from various known mechanisms. For example, it may be in the form of a pressure-accumulating pump, an aerosol container, or a normal pump type. In this invention, the collar part which comprises a locking mechanism is protrudingly provided in the outer peripheral upper part of the ejection head.

  The shoulder cover has a cylindrical shape that surrounds the portion of the dispenser that protrudes above the container body and is mounted on the shoulder of the container body, has a pair of recessed windows on the front and back, and a pair of locking surfaces on the left and right. Yes. The recessed window has an opening shape with a predetermined width and a predetermined depth downward from the front upper end of the shoulder cover, and is provided so that the ejection head can be pushed down. It also has a function that allows the liquid to be ejected through the exit.

  The locking surface forms a locking mechanism with the flange of the ejection head, and the locking surface locks the flange with the ejection port of the ejection head facing sideways so that the ejection head cannot be pushed down. In this state, the lock of the collar is released and the ejection head can be pushed down with the ejection port facing forward.

  Locking surfaces are provided on the tops of both sides of the shoulder cover, but if the recesses that can turn the collars are formed in those parts and the lower surface is used as the locking surface, the top surface of the ejection head and the top surface of the shoulder cover Can be formed on substantially the same plane, and can be stacked during distribution.

  In addition, it is preferable to provide an engaging means for preventing the ejection head from rotating in a locked state where the collar portion is located at a predetermined position above the locking surface. In that case, it is represented by the engagement between the protrusion and the recess. Adopting the concave and convex engaging means is preferable because a click feeling can be obtained at the time of engagement or disengagement.

  The first means is configured as follows. In other words, the container body A in which the mouth and neck part 4 is erected from the trunk part 2 through the shoulder part 3 is mounted on the mouth and neck part 4 of the container body A, and the ejection head 11 can be pushed down in the upward biased state at the upper end. And a dispenser B configured to eject the liquid stored in the container body A from the ejection port 12 of the ejection head 11 by the vertical movement of the ejection head 11, A shoulder cover C that surrounds the exposed dispenser part and has a cylindrical shape fitted to the container body A, has a pair of recessed windows 23 at the front and rear upper ends, and a pair of locking surfaces 24b at the left and right tops. The ejection head 11 protrudes from the ejection head 11 with a flange 13 that is engaged with each engagement surface 24b in a state in which the ejection port 12 faces sideways and that is disengaged from each engagement surface 24b in a state in which the ejection port 12 faces frontward.

  The second means is configured as follows. That is, in the first means, the concave and convex engaging means for releasably engaging with each other in the push-down locked state of the jet head 11 with the jet outlet 12 facing sideways is provided between the jet head 11 and the shoulder cover C. Provided.

  The third means was configured as follows. That is, in the first means, when the ejection head 11 is rotated from the locked state to the ejectable state where the ejection port 12 faces forward, the ejection head 11 is moved to a predetermined position where the ejection port 12 faces forward. Locking means for locking was provided between the ejection head 11 and the shoulder cover C.

  The fourth means is configured as follows. That is, the strap attaching hole 28 is formed in the shoulder cover C in any one of the first to third means.

  The fifth means is configured as follows. That is, in any one of the first to fourth means, the tops on both sides of the shoulder cover C are formed on the same plane as the top surface of the ejection head 11, and the tops on both sides of the shoulder cover C are formed. A concave portion 24 that is rotatably engaged on both sides of the flange portion 13 is provided horizontally, and the lower surface of the concave portion 24 is used as a locking surface 24b.

  The liquid ejector of the present invention has an extremely simple operation between a locked state in which the ejection head 11 is prevented from being pushed down and liquid cannot be ejected, and an unlocked state in which the ejection head 11 can be pushed down and liquid can be ejected. Therefore, it is possible to reliably prevent inconveniences such as inadvertently depressing the ejection head 11 by setting the lock state when not in use.

  Further, in the case where the concave and convex engaging means for releasably engaging with each other in a state where the ejection head 11 with the ejection port 12 facing down is locked down is provided between the ejection head 11 and the shoulder cover C, It is possible to prevent inconvenience such as the ejection head 11 rotating due to external force such as vibration. There is also an advantage that a click feeling can be obtained at the time of engagement or disengagement.

  When the ejection head 11 is rotated from the locked state to the ejectable state where the ejection port 12 faces forward, a locking means for locking the ejection head 11 at a predetermined position where the ejection port 12 faces forward is provided with the ejection head 11 When it is provided between the shoulder cover C, there is an advantage that the spout 12 can be easily rotated to an accurate front position.

  When the attachment hole 28 for the strap is drilled in the shoulder cover C, the ejector can be easily suspended by inserting and attaching the hanging strap as necessary.

  The tops on both sides of the shoulder cover C are formed on the same plane as the top surface of the ejection head 11, and the recesses 24 are provided on the tops on both sides of the shoulder cover C so that both sides of the collar 13 are rotatably engaged. When the lower surface of 24 is a locking surface 24b, it can be handled in a stacked manner during distribution and storage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 7 show an example of the liquid ejector according to the present invention. In the drawings, 1 denotes a liquid ejector. The liquid ejector 1 includes a container body A, a dispenser B, and a shoulder cover C.

  The container body A is made of a synthetic resin, and is configured such that the mouth-and-neck part 4 stands up from the upper end of the cylindrical body part 2 via the shoulder part 3. A locking ridge 5 for locking the shoulder cover C is provided on the lower outer periphery of the mouth / neck portion 4. A concave groove 6 for preventing rotation is formed in the front portion of the locking protrusion 5.

  The dispenser B is mounted on the container body A by fitting the mounting cap 10 on the outer periphery of the mouth-and-neck portion 4, and projects the ejection head 11 above the upper end opening of the mounting cap 10 so that it can be pushed down in an upward biased state. I am letting. Further, a known liquid ejection mechanism is provided inside, and the liquid in the container body A is ejected from the ejection port 12 of the ejection head 11 by moving the ejection head 11 up and down.

  The ejection head 11 has a flange 13 protruding from the upper end of the outer periphery. The eaves part 13 is a horizontally long quadrilateral shape, and the four corners are rounded into an arc shape. In addition, a pair of engaging plate portions 14 constituting a locking means are projected from a predetermined position on the outer periphery. Furthermore, an engagement protrusion 15 that constitutes an uneven engagement means protrudes at a predetermined position on the lower surface of the flange 13.

  The shoulder cover C is made of synthetic resin, and connects the cylindrical inner peripheral wall 20 and the elliptic cylindrical outer peripheral wall 21 with a top wall 22 formed of a composite wall such as a horizontal wall or an inclined wall. The inner peripheral wall 20 and the outer peripheral wall 21 have a cylindrical shape formed in a double cylindrical shape so as to share a part in the front-rear left-right central part, and each has a recessed window 23 at the front and rear as a whole. In addition, a pair of recesses 24 in which the flange 13 can be rotated are provided on both sides. Each concave portion 24 is provided in a horizontal wall portion constituting both sides of the top wall 22, and has an arc-shaped side surface 24a having a radius of curvature centered on the center of the shoulder cover C, and a horizontal plane defined by the side surface 24a. And a locking surface 24b. A pair of protrusions 25 project from a predetermined position of the left locking surface 24b, and an engagement recess 26 is formed between the protrusions 25. The engagement recess 26 and the engagement protrusion 15 of the ejection head 11 The concavo-convex engaging means is constituted by In addition, a pair of locking plate portions 27 project from a predetermined position of the inner peripheral wall 20 to form locking means with the engagement plate portions 14 of the ejection head 11. Then, the engaging ridge 29 protruding from the lower end of the inner peripheral wall 20 is engaged with the engaging ridge 5 of the mouth-and-neck portion 4 so as to stand up around the protruding portion of the dispenser B protruding above the container body A. I am letting. At this time, the protrusion 30 projecting from the lower front portion of the inner peripheral wall 20 is fitted into the groove 6 so that the shoulder cover C does not rotate with respect to the container body A. A pair of front and rear strap attachment holes 28 are provided in the upper portion of the outer peripheral wall 21 of the shoulder cover C.

  1 to 4 show a locked state in which the ejection head 11 is prevented from being pushed down. In this case, the ejection port 12 faces to the right side, and the bottom surfaces of the flanges 13 on both sides come into contact with the locking surfaces 24b so that the ejection head 11 Can not be pushed down. In addition, the engaging protrusion 15 gets over and engages in the engaging recess 26 to prevent the ejection head 11 from rotating by a weak external force such as vibration.

  5 to 7 show the unlocked state, and when the liquid is ejected, the ejection head 11 is rotated from the locked state to the unlocked state. If, for example, the front and rear of the flange 13 are grasped from the state of FIG. 1 and the ejection head 11 is rotated, a click feeling can be obtained when the first engagement projection 15 is disengaged from the engagement recess 26, and the ejection port 12 It can be seen that each engagement plate portion 14 is in contact with each locking plate portion 27 at a predetermined position at a position facing forward. At this time, the narrow portion 13 on both sides of the jet outlet 12 is located on both sides of the flange portion 13 so that the flange portion 13 is detached from each locking surface 24b portion and the ejection head 11 can be pushed down. Therefore, when the ejection head 11 is pushed down, the liquid is ejected from the ejection port 12 by the action of the liquid ejection mechanism. After use, the ejection head 11 may be rotated again to return to the original locked state.

  FIG. 8 shows another example, in which a strap 31 is vertically provided in the center as the attachment hole 28 for the strap. A string or the like can be wound around the pillar 31 and attached. In this case, only one mounting hole 28 is sufficient. The other configuration is the same as that of the example of FIG.

It is a partially cutaway front view of the lock state of the liquid ejector of the present invention. Example 1 It is a partially cutaway side view of the locked state of the liquid ejector of the present invention. Example 1 It is a top view of the locked state of this invention liquid ejector. Example 1 It is a front view of the locked state of this invention liquid ejector. Example 1 It is a partially notched front view of the unlocked state of the liquid ejector of the present invention. Example 1 It is a top view of the lock release state of the liquid ejector of the present invention. Example 1 It is a front view of the unlocking state of the liquid ejector of the present invention. Example 1 It is a front view of the locked state of this invention liquid ejector. (Example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Liquid ejector A ... Container body 2 ... Torso part, 3 ... Shoulder part, 4 ... Mouth neck part, 5 ... Locking protrusion, 6 ... Concave groove B ... Dispenser
10 ... mounting cap, 11 ... ejection head, 12 ... ejection port, 13 ... collar, 14 ... engagement plate,
15 ... engaging protrusion C ... shoulder cover
20 ... inner peripheral wall, 21 ... outer peripheral wall, 22 ... top wall, 23 ... recessed window, 24 ... recessed portion, 24a ... side surface,
24b ... locking surface, 25 ... protrusion, 26 ... engagement recess, 27 ... locking plate part, 28 ... mounting hole,
29 ... engagement ridge, 30 ... protrusion, 31 ... pillar

Claims (5)

  The container body A with the mouth-and-neck part 4 standing up from the body part 2 through the shoulder part 3 is attached to the mouth-and-neck part 4 of the container body A, and the ejection head 11 projects into the upper end so that it can be pushed down in an upward biased state. A liquid ejector provided with a dispenser B configured to eject the liquid stored in the container body A from the ejection port 12 of the ejection head 11 by the vertical movement of the ejection head 11, and is exposed above the container body A. A cylindrical cover is provided that surrounds the dispenser portion and is fitted to the container body A. The shoulder cover C is provided with a pair of recessed windows 23 at the front and rear upper ends and a pair of locking surfaces 24b at the left and right tops. The spout head 11 is provided with protrusions 13 that are locked to the respective locking surfaces 24b with the spout 12 facing sideways, and are disengaged from the respective locking surfaces 24b with the spout 12 facing forward. And liquid ejector.   2. A liquid ejector according to claim 1, wherein concave and convex engaging means are provided between the ejection head and the shoulder cover so as to be detachably engaged with each other in a state where the ejection head with the ejection port facing sideways is pressed down. .   When the ejection head 11 is rotated from the locked state to the ejectable state where the ejection port 12 faces forward, a locking means for locking the ejection head 11 at a predetermined position where the ejection port 12 faces forward is provided with the ejection head 11 The liquid ejector according to claim 1, wherein the liquid ejector is provided between the shoulder cover and the shoulder cover.   The liquid ejector according to any one of claims 1 to 3, wherein a strap attachment hole 28 is formed in the shoulder cover C.   The tops on both sides of the shoulder cover C are formed on the same plane as the top surface of the ejection head 11, and the recesses 24 are provided on the tops on both sides of the shoulder cover C so that both sides of the collar 13 are rotatably engaged. The liquid ejector according to any one of claims 1 to 4, wherein the lower surface of 24 is a locking surface 24b.

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