Lid member and container equipped with the lid member

By designing a cover with elastic members fixed to the cover body, the problem that existing container sealing performance is prone to failure during switching operation is solved, and a better sealing effect is achieved and the maintenance time of sealing performance is extended.

JP2025039129APending Publication Date: 2025-03-21ASUBERU
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Patent Information

Application Number
JP2023145989
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-08
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The sealing performance of existing containers is prone to failure during switching operation, resulting in liquid leakage, and the elasticity of the sealing material is weakened after long-term use, making it difficult to maintain a good sealing state.

Method used

A cover with elastic members fixed to the cover body is designed, which when compressed changes shape to fill the gap between the cover and the container, thereby ensuring sealing, and through this design, the elastic force reduction problem caused by compression and release of conventional sealing materials during switching operations is avoided.

Benefits of technology

Effectively prevent liquid leakage in the container during the lid switch operation, and extend the maintenance time of sealing performance by reducing the number of compression and release of elastic members.

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Abstract

To provide a lid member and a container equipped with the lid member capable of suppressing the seepage of the contained material to the outside when the lid member is attached to or detached from the container body, and of forming a sealed state with the container body for a long period of time.SOLUTION: A lid member 30 is for closing an opening 20a that opens upward in a container body 20, and includes: a lid body 31 that has an upper arrangement portion 33a for covering the opening 20a from above and an installed portion 33b provided so as to surround the upper arrangement portion 33a, and is configured to be detachable from the container body 20; and an elastic member 40 for sealing between the lid body 31 and the container body 20. The elastic member 40 has a fixed portion 41 fixed to the installed portion 33b, a pressed portion 42 pressed by an edge portion 20b of the opening 20a, and a space 44 formed between the pressed portion 42 and the installed portion 33b to allow reception of the pressed portion 42 when the fixed portion 41 is fixed to the installed portion 33b.SELECTED DRAWING: Figure 7
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