JP2016088543A - Pump dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump dispenser in which an inhibition effect of push-down of a nozzle head is improved.SOLUTION: A pump dispenser 1 is equipped with: a base cap 2; a pump 3 for pumping a content fluid in a container; a nozzle head 4 which drives the pump 3 by repeating push-down and recovery; and a stopper 5 which is detachably mounted between the base cap 2 and the nozzle 6, and contacts an underside of the nozzle 6 thereby preventing push-down of the nozzle head 4. In the pump dispenser, the stopper 5 is equipped with a holding side wall 5a which surrounds a side wall outer surface 4a of the nozzle head from a front side to left and right sides of the nozzle head 4 and has a detachable opening 5b for attachment/detachment of the nozzle head on a rear side, and an inner surface of the holding side wall 5a is provided with a support projection 5e which enters into at least one recess 4b which is formed on each of left and right sides of the nozzle head 4, and regulates a downward movement of the nozzle head 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a push-down pump dispenser that is mounted on a container and discharges a liquid content, and more particularly, to a pump dispenser that includes a stopper that prevents the nozzle head from being pushed down.

  2. Description of the Related Art Conventionally, in a container for discharging a liquid, a pump dispenser of a type in which a pump is driven by repeatedly pressing down and restoring a nozzle head to discharge the content liquid from the opening at the tip of the nozzle.

  In such a pump dispenser, a stopper that prevents the nozzle head from being pushed down may be mounted so that the nozzle head is accidentally pushed down during storage or transportation so that the liquid content does not spill out.

  As such a stopper, for example, between the base cap held at the mouth of the container and the nozzle protruding to the front side of the nozzle head held so as to be movable up and down with respect to the base cap, A stopper is known that is mounted so as to surround the outer peripheral surface and prevents the nozzle head from being pushed down by contacting and supporting the lower surface of the nozzle.

  However, when the stopper is in contact with and supports only the lower surface of the nozzle, that is, when the downward movement of the nozzle head is prevented only at the front side where the nozzle is provided, it is unstable, and the nozzle head should be pushed down. Then, since it tilts to the rear side, it is not possible to sufficiently prevent the nozzle head from being pushed down, and there is room for improvement.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pump dispenser having an enhanced effect of preventing the nozzle head from being pushed down in a pump dispenser provided with a stopper that abuts the lower surface of the nozzle and prevents the nozzle head from being pushed down.

The present invention has been made to solve the above problems, and a pump dispenser according to the present invention includes a base cap that is held at the mouth portion of a container that contains the content liquid, and a base cap that is suspended from the mouth portion by the base cap. A pump that is held down and pumps up the content liquid in the container; a nozzle head that drives the pump by repeatedly pushing down and restoring; and discharges the content liquid from the front end opening of the nozzle protruding forward; the base cap and the nozzle A pump dispenser comprising: a stopper that is detachably mounted between the nozzle head and abutting against the lower surface of the nozzle to prevent the nozzle head from being pushed down;
The stopper includes a holding side wall that surrounds the outer surface of the side wall of the nozzle head from the front side to the left and right sides of the nozzle head, and has a detachable opening on the rear side for attaching to and detaching from the nozzle head.
A support convex portion is provided on the inner surface of the holding side wall so as to enter at least one concave portion formed on each of the left and right sides of the nozzle head and restrict downward movement of the nozzle head.

  In the pump dispenser of the present invention, it is preferable that a notch for positioning into which the nozzle enters is provided at the upper end portion of the holding side wall.

  Moreover, in the pump dispenser of the present invention, it is preferable that the concave portion is provided at a lower end portion of the external appearance exposed portion of the nozzle head.

  In the pump dispenser of the present invention, it is preferable that the concave portion is formed at positions of 120 ° from the front side to the left and right sides with the central axis of the nozzle head as a center in plan view.

  In the pump dispenser of the present invention, it is preferable that the support convex portion has a curved tip at a plan view.

  Furthermore, in the pump dispenser of the present invention, it is preferable that the upper end of the holding side wall of the stopper is positioned above the upper end of the nozzle head in the mounted state on the nozzle head.

  ADVANTAGE OF THE INVENTION According to this invention, in the pump dispenser provided with the stopper which contact | abuts the lower surface of a nozzle and prevents pushing down of a nozzle head, it becomes possible to provide the pump dispenser which improved the pushing down prevention effect of a nozzle head.

(A) is a top view of the pump dispenser which is one Embodiment of this invention, (b) is a side view of the pump dispenser of Fig.1 (a). (A) is the elements on larger scale which show the state which removed the stopper in the pump dispenser of Drawing 1 (a) and (b), and (b) is a bottom view of the nozzle head of this embodiment. It is a perspective view showing a mode that a stopper is attached to a nozzle head of this embodiment.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In the present specification, claims, and abstract, the “up” direction and the “down” direction indicate directions in a state where the pump dispenser is actually used after being mounted on the container. Further, the “front” direction is the direction in which the nozzle is directed (the direction in which the tip opening is located with respect to the base of the nozzle) (left side of FIG. 1), and the “rear” direction is the opposite direction (FIG. 1). Right side). The “left” and “right” directions indicate the left and right directions when viewing the pump-type dispenser from front to back.

  Fig.1 (a), (b) shows the pump dispenser 1 which concerns on one Embodiment of this invention. The pump dispenser 1 includes a base cap 2 held at the mouth of a container (not shown), a pump 3 that pumps up the content liquid, a nozzle head 4 that drives the pump 3 by repeatedly pressing down and restoring, and a nozzle head 4 And a stopper 5 which is detachably attached to the nozzle head 4 and prevents the nozzle head 4 from being pushed down.

  As a container to which the pump dispenser 1 is mounted, for example, a container having a bottom part, a trunk part, a shoulder part, and a mouth part from the lower side and containing a content liquid such as shampoo, rinse, cosmetic, seasoning, etc. However, the shape of the container and the type of the content liquid are not particularly limited.

  The base cap 2 has a cylindrical side wall 2a that is engaged and held on the outer peripheral side of the mouth of the container. The side wall 2a can be configured to be engaged and held in the mouth portion by, for example, screw engagement or undercut engagement, but is not limited thereto.

  An upper opening 2c penetrating in the axial direction is formed on the upper surface 2b of the base cap 2. The inner diameter of the upper opening 2 c is slightly larger than the outer diameter of the side wall outer surface 4 a of the nozzle head 4, and the pushed-down nozzle head 4 enters the upper opening 2 c.

  The pump 3 is suspended and held by the base cap 2 at the mouth of the container, and pumps up the liquid in the container. The pump 3 is driven by repeatedly pressing down and restoring to suck the content liquid and pump it toward the nozzle 6. The structure of the pump 3 is not particularly limited, and a known structure can be adopted.

  The nozzle head 4 is provided to be movable up and down with respect to the base cap 2 and is held in an upward biased state by an elastic member such as a spring provided therein. The nozzle head 4 has a nozzle 6 that protrudes forward from the upper end portion of the outer surface 4 a on the cylindrical side wall, and the content liquid sucked and pumped by driving the pump 3 is discharged from the tip opening 6 a of the nozzle 6. The Note that the discharge mode of the content liquid is not particularly limited, and may be liquid, mist, or the like.

  On the side wall outer surface 4a of the nozzle head 4, one concave portion 4b is formed on each of the left and right sides. As shown in FIG. 2A, in the present embodiment, a recess 4 b is provided at the lower end portion of the external appearance exposed portion of the nozzle head 4.

  Here, FIG. 2B is a bottom view of the nozzle head 4. As illustrated, in the present embodiment, the shape of the recess 4b is a shape that is recessed in an arc shape from the side wall outer surface 4a toward the inside in the radial direction. Further, as shown in FIG. 2B, the angles θ1 and θ2 formed by a straight line extending forward from the central axis C of the nozzle head 4 and a straight line extending from the central axis C toward the center of each recess 4b are It is set to 120 °. That is, the recesses 4b are provided at positions 120 ° on both the left and right sides from the front side of the nozzle head 4 with the axis C as the center. In the present embodiment, the recess 4 b is provided at a position where it cannot be seen from the front side of the nozzle head 4.

  As shown in FIGS. 1A, 1B, and 3, the stopper 5 has a substantially C-shaped holding side wall 5a that surrounds the outer side wall 4a of the nozzle head 4 from the front side to the left and right sides. The holding side wall 5a has an attachment / detachment opening 5b for attaching / detaching to / from the nozzle head 4 on the rear side. Moreover, the stopper 5 has a guide part 5c that is continuous from both edges of the attachment / detachment opening 5b in the holding side wall 5a, and the pair of guide parts 5c is a distance from the connecting part to the holding side wall 5a toward the tip. Is expanding. With this guide portion 5c, when the stopper 5 is mounted on the nozzle head 4, the nozzle head 4 can be guided into the detachable opening 5b to facilitate mounting.

  In the present embodiment, a positioning notch 5d into which the nozzle 6 enters is provided at the upper end portion on the front side of the holding side wall 5a. Further, a support convex portion 5e that enters the concave portion 4b and restricts the downward movement of the nozzle head 4 is provided on the inner surface of the holding side wall 5a. The support convex portion 5e corresponds to the position and shape of the concave portion 4b, and protrudes in an arc shape in plan view from the lower end portion of the inner surface of the holding side wall 5a toward the radially inner side.

  Further, on the inner surface of the holding side wall 5a, vertical ribs 5f extending upward along the axial direction from the upper surface 5h of each supporting convex portion 5e are provided, and the vertical ribs 5g extending in the axial direction are also provided on the front side. Is provided. In the mounted state on the nozzle head 4, the radial inner ends of the longitudinal ribs 5f and 5g of the stopper 5 abut on the side wall outer surface 4a of the nozzle head 4, thereby preventing the stopper 5 from rattling in the mounted state. .

  When the stopper 5 is attached to the nozzle head 4, the notch 5d of the stopper 5 is aligned with the position of the nozzle 6, and the stopper 5 is pushed in from the attachment / detachment opening 5b side toward the rear side from the front side of the nozzle head 4. Go. Although the width of the detachable opening 5b is set to be smaller than the diameter of the side wall outer surface 4a of the nozzle head 4, the holding side wall 5a is elastically deformed when the guide portion 5c slides on the side wall outer surface 4a of the nozzle head 4. The width of the detachable opening 5b temporarily increases. Thereby, the nozzle head 4 passes through the attachment / detachment opening 5 b, and the stopper 5 can be attached to the nozzle head 4. As a result, the support convex portion 5e enters the concave portion 4b. As shown in FIG. 1B, the lower end of the stopper 5 is in contact with and supported by the upper surface 2 b of the base cap 2 in the mounted state on the nozzle head 4.

  When removing the stopper 5 from the nozzle head 4, it can be removed by expanding the width of the detachable opening 5b by opening the guide portions 5c on both sides and sliding the holding side wall 5a forward.

  In the pump dispenser 1 of the present embodiment having the above-described configuration, when the nozzle head 4 is to be pushed down with the stopper 5 mounted, the lower surface of the nozzle 6 is positioned on the holding side wall 5a at the position of the notch 5d. While abutting on the upper end, the top surface 4c (surface facing downward) of the recess 4b abuts on the upper surface 5h of the support projection 5e, and the downward movement of the nozzle head 4 is restricted. In other words, not only the lower surface of the nozzle 6 is supported on the front side of the nozzle head 4, but also supported by support convex portions 5e provided on both the left and right sides, and the downward movement is restricted at least at three points in the circumferential direction. In this state, it is possible to prevent the nozzle head 4 from being pushed down. As a result, the effect of preventing the nozzle head 4 from being pushed down by the stopper 5 can be enhanced. Furthermore, the effect of preventing the stopper 5 from falling off can be obtained by the support convex portion 5e entering the concave portion 4b in the mounted state.

  Further, in the pump dispenser 1 of the present embodiment, the positioning notch 5d is provided at the upper end on the front side of the holding side wall 5a, so that the nozzle 5 is aligned with the position of the notch 5d. The mounting of the support convex part 5e with respect to the concave part 4b can be performed only by mounting.

  Further, in the pump dispenser 1 of the present embodiment, the nozzle 6 and the two recesses 4b are arranged at intervals of 120 ° around the central axis C, so that the nozzle head can be equally spaced at three points in the circumferential direction. 4 is supported, it is possible to prevent the nozzle head 4 from being pushed down in a more stable state.

  Moreover, in the pump dispenser 1 of the present embodiment, the position where the recess 4b is provided is a position where it cannot be visually recognized from the front side of the nozzle head 4, and the lower end of the exposed external portion is formed, so that the recess 4b is externally displayed. It can be made inconspicuous.

  Further, in the pump dispenser 1 of the present embodiment, the support convex portion 5e has a shape that protrudes in an arc shape in a plan view toward the inside in the radial direction, so that the nozzle head 4 can be removed when the stopper 5 is attached or detached. Since it is easy to slide even when it contacts the side wall outer surface 4a, smooth attachment and detachment is possible. From such a viewpoint, it is preferable that the shape of the support convex portion 5e is a shape in which a tip (a radially inner end) is curved in a plan view.

  In the state where the stopper 5 is mounted on the nozzle head 4, it is preferable that the upper end of the holding side wall 5 a of the stopper 5 is positioned at the same height as the upper end of the nozzle head 4 or above the upper end of the nozzle head 4. . Here, when the upper end of the holding side wall 5a is lower than the upper end of the nozzle head 4, when the nozzle head 4 is pushed down with the stopper 5 mounted, the nozzle head receives all the downward force. As a result, a large load is applied to the support convex portion 5e that contacts the top surface 4c of the concave portion 4b, so that the support convex portion 5e may be damaged or the stopper 5 may come off from the concave portion 4b. On the other hand, when the upper end of the holding side wall 5a is the same height as the upper end of the nozzle head 4, both the holding side wall 5a and the nozzle head 4 receive a force to push down the nozzle head 4. Therefore, the load on the support convex portion 5e can be reduced. Furthermore, when the upper end of the holding side wall 5a is positioned above the upper end of the nozzle head 4, the force to push down the nozzle head 4 is received only by the holding side wall 5a. Can be prevented and the stopper 5 can be prevented from falling off. In the present embodiment, the upper end of the holding side wall 5 a of the stopper 5 is positioned at the same height as the upper end of the nozzle head 4 when mounted on the nozzle head 4.

  Although the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the claims, for example, the recess 4b and the support. A plurality of convex portions 5e can be provided on both the left and right sides.

DESCRIPTION OF SYMBOLS 1 Pump dispenser 2 Base cap 2a Side wall 2b Upper surface 2c Upper opening 3 Pump 4 Nozzle head 4a Side wall outer surface 4b Recessed part 5 Stopper 5a Holding side wall 5b Removable opening 5c Guide part 5d Notch 5e Supporting convex part 6 Nozzle 6a Tip opening C Center axis

Claims (6)

A base cap held at the mouth portion of the container for containing the content liquid; a pump that is suspended and held at the mouth portion by the base cap and pumps up the content liquid in the container; and the pump is driven by repeated depression and restoration. A nozzle head that discharges the content liquid from the tip of the nozzle protruding forward, and a base cap and the nozzle are detachably mounted between each other and are in contact with the lower surface of the nozzle to depress the nozzle head A pump dispenser comprising a stopper for blocking,
The stopper includes a holding side wall that surrounds the outer surface of the side wall of the nozzle head from the front side to the left and right sides of the nozzle head, and has a detachable opening on the rear side for attaching to and detaching from the nozzle head.
A pump dispenser, characterized in that a support convex portion is provided on the inner surface of the holding side wall to enter at least one concave portion formed on each of the left and right sides of the nozzle head to restrict downward movement of the nozzle head.   The pump dispenser according to claim 1, wherein a notch for positioning into which the nozzle enters is provided at an upper end portion of the holding side wall.   The pump dispenser according to claim 1 or 2, wherein the concave portion is provided at a lower end portion of an external appearance exposed portion of the nozzle head.   The pump dispenser according to any one of claims 1 to 3, wherein the concave portion is formed at a position of 120 ° from the front side to the left and right sides with the central axis of the nozzle head as a center in plan view. .   The pump dispenser according to any one of claims 1 to 4, wherein a tip of the support convex portion is curved in a plan view.   The upper end of the holding side wall of the stopper is located at the same height as the upper end of the nozzle head when mounted on the nozzle head or above the upper end of the nozzle head. The pump dispenser according to item.

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