Title:
ABUTTING-TYPE PAPER COVER
Document Type and Number:
WIPO Patent Application WO/2021/072805
Kind Code:
A1
Abstract:
An abutting-type paper cover, comprising a cover body (10), a reinforcing flow guide portion (11) and a snap-fitting portion (12). The cover body (10) comprises a cover surface (101) and a cover edge (102); the reinforcing flow guide portion (11) is provided on the cover edge (102) and covers three outer side walls of the cover edge (102); the snap-fitting portion (12) extends out of the reinforcing flow guide portion (11), and the extending direction of the snap-fitting portion (12) is opposite to the extending direction of the cover edge (102); in a section along the vertical line of a plane where the cover surface (101) is located, the snap-fitting portion (12) comprises an arc-shaped section (121), one end of the arc-shaped section (121) abuts against the cover surface (101), and when the abutting-type paper cover covers a container opening (201) of a container (20), a curled edge (22) abuts against the cover surface (101) and the arc-shaped section (121). The abutting-type paper cover can be covered on a container, and does not fall off without the aid of an external force, so that the abutting-type paper cover not only can ensure the strength and stiffness thereof, but also can cover the container without falling off, and can form a better sealing with the container opening of the container, so that liquid in the container does not leak out.
Inventors:
WANG JIANPING (CN)
Application Number:
PCT/CN2019/114186
Publication Date:
April 22, 2021
Filing Date:
October 30, 2019
Export Citation:
Assignee:
ZHEJIANG DISCOVERY MACHINERY MFG CO LTD (CN)
International Classes:
B65D45/32
Foreign References:
| CN103482207A | 2014-01-01 | |||
| CN109502130A | 2019-03-22 | |||
| CN208360856U | 2019-01-11 | |||
| DE19641172A1 | 1998-04-16 | |||
| CN204660262U | 2015-09-23 | |||
| US7137525B2 | 2006-11-21 | |||
| EP0411302A1 | 1991-02-06 | |||
| DE4233858A1 | 1994-06-23 | |||
| DE3202661A1 | 1983-08-04 |
Attorney, Agent or Firm:
BEIJING LINKAW PATENT ATTORNEY LAW FIRM (GENERAL PARTNERSHIP) (CN)
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