JPH0331723Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] The present invention aims to maintain the airtightness of the opening of a container for storing liquid, etc., and relates to a container that can thereby prevent the contents from leaking. It is something. Conventionally, gaskets and the like have been used for this type of purpose, but these types of gaskets do not maintain airtightness reliably and lose elasticity when used for a long period of time, making it difficult to maintain airtightness. There was a drawback that I couldn't do it.

The present invention is a technology developed in view of these conventional drawbacks.

[Structure of the idea]

One embodiment of the present invention will be explained in detail with reference to the drawings. In FIGS. 1 and 2, 1 is a container body, and a neck 2 has a neck portion 2 that can close the opening of the container body 1. A removable lid 3 is screwed in such a way that it can be opened and closed via screws 4 and 5, respectively. Next, reference numeral 6 is an inner stopper, which has an outer ring wall 9 integrally provided through a collar 8 provided at the upper end of the inner cylinder 7, and the upper part of the neck part 2 of the container body 1 is connected to this inner ring wall 9. It is held between the inner cylinder 7 and the outer ring wall 9 and is fitted so as to be slidable up and down along the neck 2. Further, reference numeral 10 denotes an elastic ring interposed between the collar 8 of the inner stopper 6 and the opening edge of the neck 2 of the container body 1, and is configured to be able to contract freely in response to the pressure of the lid 3. There is.

In addition, locking protrusions for positioning or engaging recesses corresponding to the locking protrusions are provided (not shown) on a portion of the lid 3 and neck 2 of the container in the above embodiment, respectively. It is also possible to mutually align a non-circular container, such as a polygonal container or an elliptical container, and a similar lid by using the .

[Effect of idea]

In the container according to the present invention, an inner stopper 6 having an outer ring wall 9 connected to the inner cylinder 7 through a flange 8 is fitted into the opening of the container body 1 so as to be vertically slidable. Since the elastic ring 10 is interposed between the opening edge of the neck part 2, when the lid 3 is screwed onto the neck part 2 and tightened, the inner stopper 6 is gradually pushed into the opening of the neck part 3 by the lid 3. As it is pressed, the elastic ring 10 gradually contracts, and at the same time, in this state, the elastic restoring force of the elastic ring 10 allows the inner stopper 6 to move up and down, absorbing variations in dimensions, and adjusting the size of the inner stopper 6. Cover the exit 3
This makes it possible to maintain the airtightness of this part at all times, and there is no need for a molded gasket with a special shape as in the past. The overall structure is simple, it can be mass-produced at low cost, there is no breakdown, and since it uses an elastic ring, there is no fear of fatigue and the inability to maintain airtightness as with conventional gaskets. Moreover, since the elastic ring 10 is fitted between the inner cylinder 7, collar 8 and outer ring wall 9 of the inner plug 6, assembly is easy and there is no risk of the elastic ring 10 falling off from the inner plug 6 during use. It has the following characteristics.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams of the container of the present application. 1 is the container body, 2 is the neck, 3 is the lid, 6 is the inner stopper,
8 is a collar, 9 is an outer ring wall, and 10 is an elastic ring.

Claims (1)

[Scope of utility model registration request] In a container consisting of a container body and a lid that can be screwed together to close the container body, an inner stopper is provided in which an outer ring wall is integrally connected to a flange provided at the upper end of the inner cylinder. 1. A container which is fitted into an opening of a container main body so as to be slidable up and down, and has an elastic ring interposed between the collar of the inner stopper and the edge of the opening of the container main body.