JP2535942Y2 - Inner stopper for liquid container - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is for a liquid container in which the liquid is prevented from adhering and staying at the spout portion inside the inner stopper and the liquid is prevented from inadvertently leaking to the outside of the container. The present invention relates to an inner plug, and particularly to an inner plug for a liquid container which is suitable for being used when a liquid is poured out little by little, such as an expensive medicine.

[Related Art] An inner cap for a liquid container is an inner lid fitted into the mouth of the liquid container, and is attached to the mouth of the container in order to adjust the amount of outflow of the liquid according to the diameter of the spout. Things. The spout of the inner plug is closed by a cap (lid).

Conventionally, as the inner plug for a liquid container, one having a structure as shown in FIG. 3 has been used. Here, the inner cap 1 for a liquid container has a body 2 fitted into the mouth 8 of the container 7, and is formed integrally with the body 2 in connection with the body 2, and has a tapered shape having a spout 5 at the tip. And a nozzle unit 3. And
When the container is tilted or the body of the container is pressed, the liquid inside the container flows out from the spout 5 of the inner stopper 1 for the liquid container.

[Problem to be Solved by the Invention] However, in the above-described conventional inner plug for a liquid container, the liquid adheres to the inside of the inner stopper, particularly the spout portion after the liquid flows out.
It was easy to stay.

Such liquid remaining in the spout inside the inner plug has caused the following problems.

That is, when the body of the container is pressed by gripping, the air inside the container is compressed, or when the air inside the container thermally expands due to the high body temperature or the high temperature of the outside air of the hand holding the container, it remains at the spout. Liquid leaks. Then, the leaked liquid flows along the outer surface of the container, adheres to the label attached to the container or the hand holding the container, and contaminates it. Further, when the momentum at the time of leakage of the liquid is strong, there is a problem that the liquid scatters around and contaminates the periphery.

In particular, there is a problem that the liquid is dangerous when the liquid is harmful to the human body and the like, and there is a problem that an expensive pharmaceutical product suffers an economic loss. Further, there is a problem that the remaining liquid solidifies to cause clogging of the spout.

In addition, a rib (guide bar) having a tapered surface inclined inward is formed on the inner peripheral surface of the inner plug for the purpose of facilitating the plugging operation when the inner plug for the container is plugged into the mouth of the container. This technique is disclosed in Japanese Utility Model Publication No. 58-4828. However, Kimiaki Jitsu
The bottle stopper described in No. 58-4825 has a different purpose from the present invention, and does not have a guide bar located near the spout, so it is expected to have an effect of preventing liquid from staying. Could not.

The present invention has been made in view of the above-mentioned problems, and in particular, eliminates the adhesion and stagnation of a liquid inside an inner plug that discharges a liquid little by little like an expensive medicine,
An object of the present invention is to provide an inner stopper for a liquid container that prevents liquid from accidentally leaking out of the container.

[Means for Solving the Problems] In order to achieve the above object, an inner plug for a liquid container according to the present invention includes a body fitted into a mouth of the container, and a body protruding from the mouth of the container. An inner plug for a liquid container, comprising a tapered nozzle portion having a spout formed at the center of the end thereof and integrally formed in a continuous manner, wherein the liquid retained inside the inner plug is returned into the container. A guide for a ridge is formed on the inner peripheral surface of the inner plug so as to extend from the tip of the nozzle portion to the lower end of the body, and the distance between the end at the tip of the guide and the spout is determined by the container. The structure is so short that the liquid in the form of droplets adhering to the guide is removed when the liquid inside flows out.

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

FIG. 1 (a) is a cutaway longitudinal sectional view showing a state in which an inner plug for a liquid container according to an embodiment of the present invention is fitted into a mouth portion of the container, and FIG. 1 (b) is AA in FIG. It is a line sectional view.

In these drawings, 1 is an inner stopper for a liquid container,
It is composed of a body 2 and a nozzle 3. As a material for forming the inner plug 1 for the liquid container, a synthetic resin such as polyethylene (including low, medium and high density polyethylene) and polypropylene is used. The body part 2 and the nozzle part 3 are formed integrally, and a locking part 4 is provided outside the boundary between them.

The body 2 is a portion to be fitted into the mouth 8 of the container 7, and its outer shape is formed slightly larger than the inner diameter of the mouth of the container 7 so as not to fall out of the mouth 8.

The nozzle portion 3 is formed in a tapered shape, and a small hole is formed at a tip end thereof as a spout 5 for discharging a small amount of liquid.

The locking portion 4 engages and locks with the opening edge of the container when the body portion 2 is fitted into the opening of the container, thereby preventing the nozzle portion 3 from immersing in the opening of the container.

Reference numeral 6 denotes a guide, which is formed on the inner peripheral surface of the inner stopper 1 for the liquid container at an arbitrary interval (in this embodiment, four lines at 90 degrees intervals). The guide 6 has a ridge (rib) shape and is formed to extend from the tip of the nozzle portion 3 to the lower end of the body portion 2.

Further, as shown in FIG. 1 (a), the distance S between the end of the guide 6 at the tip of the nozzle 3 and the spout 5 is determined by the droplet-like liquid adhering to the guide 6 when the liquid inside the container flows out. However, it is short enough to be transmitted along the guide 6 and removed.

Next, the operation of the liquid container inner plug having the above configuration will be described.

The inner cap 1 for a liquid container is used by being fitted into the mouth of the container. When the container is tilted or the body of the container is pressed, the liquid inside the container flows out from the spout 5 of the inner stopper 1 for the liquid container. After use of the container, the liquid adhering and staying inside the liquid container inner plug 1 flows down the guide 6 and returns to the inside of the container.

Also, the liquid remaining in the spout 5 adheres as it is,
It flows down the guide 6 without stagnation and is returned into the container.

Therefore, the liquid does not adhere and stay inside the inner plug including the spout 5.

Note that the present invention is not limited to the above-described embodiment, and can be appropriately modified and implemented within the scope of the present invention.

For example, the guide is not limited to the one in the above embodiment integrally formed with the inner plug, but may be a fitting type as shown in FIGS. 2 (a) and 2 (b).

That is, the guide is a part formed separately from the inner plug for the container. This part is composed of a ring portion 9 and a guide 6, and is engaged with the inner peripheral surface of the liquid container inner plug 1 to be locked on the inner peripheral surface of the liquid container inner plug 1.

By using the parts having the above-described guide shape, the conventional container inner plug can be easily and easily converted into the container inner plug of the present invention.

[Effect of the Invention] According to the inner plug for a container of the present invention as described above, the adhesion and stagnation of the liquid inside the inner plug for the container including the spout are completely eliminated, and the liquid leaks to the outside of the container carelessly. Can be prevented.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are a cutaway longitudinal sectional view and a transverse sectional view showing an inner plug for a liquid container according to an embodiment of the present invention.
(A) and (b) are a longitudinal sectional view and a transverse sectional view showing another embodiment, and FIG. 3 is a sectional view showing a conventional inner plug for a liquid container. 1: Inner stopper for liquid container, 2: Body, 3: Nozzle 4: Locking part, 5: Spout, 6: Guide

Claims (1)

(57) [Scope of request for utility model registration] 1. A body fitted into a mouth of a container, and a spout formed integrally with the body so as to protrude from the mouth of the container and formed with a small hole at the center of the tip. An inner stopper for a liquid container comprising a tapered nozzle portion, and a guide of a ridge for returning the liquid retained inside the inner stopper to the inside of the inner stopper from the tip of the nozzle portion on the inner peripheral surface of the inner stopper. The guide is formed so as to extend to the lower end of the body, and the distance between the end at the tip of the guide and the spout is set so that the liquid in the form of droplets attached to the guide when the liquid flows out of the container is removed. An inner plug for a liquid container, characterized in that it is made shorter.