Title:
LID MEMBER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/084846
Kind Code:
A1
Abstract:
Provided is a lid member that can sufficiently secure airtightness when closed, and that has high strength. A lid part and a base part that are made of a pulp-based material are integrally coupled to each other via a hinge part and formed to be capable of opening and closing. The lid part is provided with a swelling part. The base part is provided with an attachment part for a packaging body, a surrounding wall raised from the attachment part, and a flange part formed between the surrounding wall and the extraction opening. The lid member is configured such that: when closed, the lid part contacts the flange part; when a closed state is being maintained, the swelling parts is disposed so as to cover the surrounding wall with a pressing force being applied to the flange part by the lid part; and when the maintenance of the closed state is removed, the pressing force being applied to the flange part by the lid part is removed and a force for opening the lid part is applied from the flange part to the lid part.
Inventors:
TAKANO AKIRA (JP)
Application Number:
PCT/JP2020/031040
Publication Date:
May 06, 2021
Filing Date:
August 17, 2020
Export Citation:
Assignee:
TAKANO AKIRA (JP)
International Classes:
B65D43/16; B65D25/52; B65D43/02; B65D43/22; B65D83/08
Domestic Patent References:
| WO2014199409A1 | 2014-12-18 |
Foreign References:
| JP2015217977A | 2015-12-07 | |||
| JP2000211680A | 2000-08-02 | |||
| US20140091103A1 | 2014-04-03 | |||
| US20180079565A1 | 2018-03-22 | |||
| JP2016141080A | 2016-08-08 | |||
| JP2017537811A | 2017-12-21 | |||
| JP2016016883A | 2016-02-01 | |||
| JP3207763U | 2016-12-01 |
Other References:
See also references of EP 4011798A4
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