Title:
OPENING/CLOSING MEMBER
Document Type and Number:
WIPO Patent Application WO/2024/095346
Kind Code:
A1
Abstract:
Provided is an opening/closing member comprising a top surface portion which covers an opening in a closed state in which the opening is blocked, a grip portion which extends on an outer edge of the top surface portion and grips an outer circumference of an opening end portion of a container body in the closed state, and a depressurization passage which passes through to an inside of a space in a tube shape formed in the grip portion so as to be installed in the grip portion and depressurizes the space. The top surface portion includes an inner surface which faces the inside of the container body in the closed state in which the opening is blocked. The inner surface includes an inner-surface toroidal region in a toroidal shape extending along an inner circumference of the opening end portion of the container body. The inner-surface toroidal region includes a protruding region portion provided with a plurality of protruding portions which protrude from the inner surface and a flat region portion devoid of the protruding portions.
Inventors:
IDO MASATSUGU (JP)
HIGASHIMOTO NAOYUKI (JP)
HIGASHIMOTO NAOYUKI (JP)
Application Number:
PCT/JP2022/040806
Publication Date:
May 10, 2024
Filing Date:
October 31, 2022
Export Citation:
Assignee:
JGC JAPAN CORP (JP)
MUTSUBISHI RUBBER CO LTD (JP)
MUTSUBISHI RUBBER CO LTD (JP)
International Classes:
B65D43/08; B65D45/22; B65D45/32
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, JP)
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