container

The container design addresses warping issues by using specific flange angles and thicknesses, ensuring controlled failure for reliable dispensing and steam discharge.

JP7864796B2Active Publication Date: 2026-05-25IDEMITSU UNITECH CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
IDEMITSU UNITECH CO LTD
Filing Date
2024-10-03
Publication Date
2026-05-25

AI Technical Summary

Technical Problem

Existing containers with recesses and flange portions are prone to warping due to internal pressure, leading to difficulties in dispensing contents or steam discharge from unintended locations.

Method used

The container design includes a flange portion with specific bending angles (-110° to +110°) and thickness (50 μm to 2000 μm) in certain sections, along with a weak seal portion and controlled joint regions, to ensure failure occurs at intended locations under pressure.

Benefits of technology

The design minimizes warping of the flange portion, allowing controlled failure and effective dispensing or steam discharge at intended locations.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To generate, at an intended position, destruction of a joint area due to a pressure of an internal space by controlling a warpage of a flange portion.SOLUTION: The container comprises: a container body that includes a recess portion and a flange portion extending from a peripheral edge of the recess portion; and a lid body that is joined to the container body in a joint area formed in the flange portion and forms an internal space in between with the recess portion, in which an angle at which the flange portion can warp with respect to the pressure of the internal space is -110° or more and +110° or less with respect to a state before the pressure is applied in a first section in a circumferential direction of the flange portion.SELECTED DRAWING: Figure 1
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