JPH06185694A - Container - Google Patents

Abstract

PURPOSE:To prevent contamination in a container having a container body to which a container valve is attached, by attaching a rubber or synthetic resin expandable balloon-like bag to the container side of the container valve so as to fill a content in the bag, thereby it is possible to prevent the content from making contact with the inner wall of the container. CONSTITUTION:In a container 1 in which a container valve 3 is attached to an opening in a container body 2 made of high strength iron, a nozzle 3a is projected inward of the container 2 is attached to the valve 3, and is attached thereto with an expandable balloon-like bag 4 made of natural or synthetic rubber or synthetic resin or the like. A content such as gas or liquid is filled in the bag 4 through the valve 3 and the nozzle 3a so that the bag 4 is inflated by the content. Then, the bag 4 is finally made into close contact with the inner wall of the container body 2. With this arrangement, since the content does never make contact with the inner wall of the container body 2, the composition of the content does not vary, and accordingly, it is possible to prevent the content from being contaminated with particles, thereby it is possible to store the content for a long time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container most suitable for filling a gas or a liquid whose composition is likely to change during storage.

[0002]

2. Description of the Related Art For example, a reactive standard gas is filled and stored in a high-pressure gas container such as a cylinder. Reduce the purity of the gas.

Therefore, as shown in JP-A-55-115694, a special coating is formed on the inner wall of the container, or as shown in JP-A-58-214092, the inner wall of the container and the container valve are plated. There is known a means for preventing the compositional change of the gas to be filled.

Further, in spray cans and the like for filling cosmetics and the like, the inner wall of the cans is also subjected to rust-preventing treatment to prevent compositional changes of the filling.

[0005]

However, the above-mentioned formation of the coating film, the inner wall treatment such as the plating treatment and the rust-prevention treatment is very troublesome and the cost required therefor is also great.

[0006] Therefore, an object of the present invention is to provide a container which does not cause a composition change of the filling material even if the inner wall of the container body is not treated.

[0007]

In order to achieve the above object, the present invention provides a container in which a container valve is attached to a container body having strength, and a rubber or synthetic resin having elasticity on the container body side of the container valve. It features a balloon-shaped bag made of plastic.

[0008]

[Operation] According to the above configuration, since the filling material is filled in the balloon-shaped bag made of rubber or synthetic resin, it does not react with the inner wall of the container and does not cause a composition change.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the embodiments shown in the drawings.

The container 1 is made of a strong iron container body 2
A container valve 3 is attached to the opening of the container valve 3, and a nozzle 3a is extended inside the container body 2 of the container valve 3. The flow path of the container valve 3 is subjected to a treatment such as nickel plating or gold plating.

An elastic balloon-like bag 4 made of natural rubber, synthetic rubber, synthetic resin or the like is attached to the nozzle 3a.

With this structure, the filling material such as gas or liquid is filled in the bag 4 and stored in the container body 2. Therefore, since the filling does not contact the inner wall of the container body 2, the composition of the filling does not change and particle contamination of the filling can be prevented, so that the storage period can be extended.

Moreover, compared with the conventional film formation, plating treatment, anticorrosion treatment, etc., it takes less labor and the cost can be greatly reduced.

Further, since the container body 2 also has no contact with the filling material, the durability is improved. Further, since the vacuuming process in the container 1 before filling can be omitted, the filling process can be shortened, and the process at the time of re-inspection of the container 1 can be simplified and the cost can be reduced.

[0015]

As described above, the container of the present invention is
Since a balloon-shaped bag made of elastic rubber or synthetic resin is attached to the container body side of the container valve provided in the container body having strength, the filling material filled in the container is made of rubber or synthetic resin. Since it is filled in the balloon-shaped bag, it does not react with the inner wall of the container and does not cause composition fluctuation.

Therefore, it is not necessary to form a coating film, a plating process, a rust preventive process or the like on the inner wall of the container body.
It saves time and labor, and the cost can be significantly reduced, and the container body does not come into contact with the filler, so that the durability is improved. Also,
Since the vacuuming process in the container before filling can be omitted, the filling process can be shortened, and further, the process at the time of reinspection of the container can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a top sectional view of a container showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a container filled with a filling material.

[Explanation of symbols]

1 ... container, 2 ... container body, 3 ... container valve, 3a ... nozzle,
4 ... bag

Claims (1)

[Claims] 1. A container in which a container valve is attached to a container body having strength, wherein a balloon-shaped bag made of elastic rubber or synthetic resin is attached to the container body side of the container valve. .