JP4443360B2 - Trigger type liquid sprayer cover - Google Patents

Description

  The present invention relates to a cover of a liquid ejector that ejects the contents in a container by checking an operation lever, and prevents liquid leakage at a product distribution stage and further improves the virginity of the container. It is going to be raised further.

  The trigger type liquid ejector has a pump mechanism that controls the suction, pressurization, and pressure feeding of liquid in the body where the injection nozzle is arranged. The piston is reciprocated in the cylinder by checking the operation lever. Thus, the contents in the container can be efficiently ejected, and in recent years, it is frequently used in containers containing a household detergent, a hair removal agent, a hair styling agent, a fragrance or the like.

This type of ejector is normally distributed as a product in a state set in advance in a container filled with the contents, and from the viewpoint of preventing leakage and alteration of the contents in the distribution stage. Is provided with a paper cover that covers it (see, for example, Patent Document 1).
JP 2003-299992 A

  However, the above-described conventional cover is easily detached from the ejector in spite of complicated installation, and the contents may leak out when an inadvertent force is applied to the operation lever. In addition, since the cover can be reset, it is difficult to determine whether the cover has been tampered with when the cover is attached again after the tampering.

  An object of the present invention is to propose a cover having a high virginity that can reliably cover the ejector without leaking and cannot be reattached (reset) once removed.

The present invention is a cover for covering the appearance of a trigger type liquid ejector having an operation lever,
A pair of side plates that surround both sides of the main body of the ejector together with at least the mouth of the container, and an upper plate that interconnects the side plates and surrounds the top of the ejector,
The side plate is provided with connecting means for passing through the back side of the operation lever and connecting to each other and preventing the operation lever from being checked,
It is a cover of the trigger type liquid ejector characterized by forming the weakening part cut | disconnected in connection with the mutual separation of a side plate in the said connection means.

  In the cover having the above-described configuration, it is preferable that the side plate has connecting means for connecting to each other on the rear end side of the ejector.

  The side plate and the upper plate can be integrally formed by injection molding.

  The side plates constituting the cover are connected by connecting means and do not come off easily. Further, since the connecting means is located on the back side of the operation lever, it is impossible to check the operation lever as long as the cover is attached. Will not leak.

  Further, if the connecting means is separated from the weakened portion when the container is opened, the cover cannot be reset and it can be grasped at a glance whether it has been tampered with or possibly.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 shows a cover according to the present invention attached to a trigger type liquid ejector, and FIG. 2 is a developed view of the cover.

  In the figure, reference numeral 1 denotes a container for filling contents, and 2 denotes a trigger type liquid ejector attached to the mouth 1a of the container 1 by an engaging means such as a screw or an undercut.

  The liquid ejector 2 includes a body 2a incorporating a pump mechanism (including a structure in which a shroud is attached to the outside of the body 2a incorporating the pump mechanism), an injection nozzle 2b connected to the body 2a, and a pump mechanism in the body 2a. Is provided with an operation lever 2c that sucks, pressurizes, and pumps the contents in the container 1 and ejects the contents from the ejection nozzle 2b.

  A cover 3 covers the liquid ejector 2. The cover 3 includes a pair of side plates 3a and 3b surrounding both sides of the main body of the liquid ejector 2 together with at least the mouth 1a of the container 1, and an upper plate that connects the side plates 3a and 3b to each other and surrounds the top of the ejector 2. 3c.

  Reference numeral 4 denotes a connecting means provided integrally with the cover 3. The connecting means 4 passes through the back side of the operation lever 2c and connects the side plates 3a and 3b to each other. The convex part 4a which has a through-hole and the wedge-shaped head which fits in the through-hole of this convex part 4a, and has the neck part as the thin weakened part t 4b.

  Further, 5 is a connecting means that is provided integrally with the cover 3 and connects the side plates 3a and 3b of the cover 3 on the rear end side of the ejector 2. As shown in FIG. 4, the connecting means 5 includes a convex portion 5a having a hole and a convex portion 5b fitted into the hole of the convex portion 5a.

  The cover 3 immediately after the molding has a sheet shape as shown in FIG. 2, and the boundary between the side plates 3a, 3b and the upper plate 3c is bent and covered with the liquid ejector 2, and the side plates 3a are connected by the connecting means 4, 5. 3b is mutually connected, and the attachment of the cover 3 is completed.

  In the state where the cover 3 is attached, since the check of the operation lever 2c is blocked by the connecting means 4, the contents will not leak even if an inadvertent force is applied to the operation lever 2c. Further, since the cover 3 is attached to the liquid ejector 2 so as to surround at least the mouth 1a of the container 1, it is impossible to remove the liquid ejector 2 from the container 1 unless the cover 3 is removed.

  When the liquid ejector 2 is used, if the lower ends of the side plates 3a and 3b of the cover 3 are grasped and separated from each other, the thin weakened portion t provided on the convex portion 4b is cut, whereby the cover 3 is removed. Is possible. When the weakened portion t is cut at the convex portion 4b, the connecting means 4 cannot be connected again.

  The cover 3 can be integrally formed by injection molding using a synthetic resin, and other molding methods may be applied if the connecting means 4 and 5 can be molded.

  The connection means 4 has a structure in which the cover 3 is removed by providing the weakened portion t and cutting it, but the side plates 3a and 3b can be connected and cannot be reset after the cover 3 is removed. If it exists, it may have a structure as shown in FIG. Further, the weakened portion t can be formed thinner, for example, by notching the portion from the illustrated portion.

  The side plates 3a and 3b and the upper plate 3c may have a shape as shown in FIG. 6 covering the whole including the injection nozzle 2b. In this case, an inadvertent force is applied to the injection nozzle 2b during the distribution of the product. But it won't break easily.

  As shown in FIGS. 1 to 6, by attaching the cover 3 from the upper surface to the side surface of the liquid ejector 2, it is possible to absorb an impact such as a drop by the cover 3, so that the liquid directly There is also an effect of preventing the sprayer 2 from being loaded and avoiding the occurrence of malfunction or the like.

  It is possible to prevent liquid leakage at the product distribution stage, and to provide a cover that can clearly grasp whether there is any possibility of tampering or the possibility of tampering.

It is the figure which showed embodiment of the cover according to this invention. It is an expanded view of the cover shown in FIG. It is the figure which showed the cross section of the principal part of the cover shown in FIG. It is the figure which showed the cross section of the principal part of the cover shown in FIG. It is the figure which showed the other structural example of the connection means. FIG. 6 is a view showing another embodiment of a cover according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 1a Mouth part 2 Trigger type liquid ejector 2a Body 2b Injection nozzle 2c Operation lever 3 Cover 3a Side plate 3b Side plate 3c Upper plate 4 Connecting means 4a Convex part 4b Convex part 5 Convex part 5b Convex part
t Weakening part

Claims (3)

A cover that covers the exterior of the trigger type liquid ejector having an operation lever,
A pair of side plates that surround both sides of the main body of the liquid ejector together with at least the mouth of the container, and an upper plate that interconnects the side plates and surrounds the top of the ejector,
The side plate is provided with connecting means for passing through the back side of the operation lever and connecting to each other and preventing the operation lever from being checked,
A trigger type liquid ejector cover according to claim 1, wherein the connecting means is formed with a weakening portion that is cut as the side plates are separated from each other.   The cover according to claim 1, wherein the side plate has connecting means for connecting to each other at a rear end side of the ejector.   The cover according to claim 1 or 2, wherein the side plate and the upper plate are integrally formed by injection molding.

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