Title:
扉開閉装置
Document Type and Number:
Japanese Patent JP7360457
Kind Code:
B2
Abstract:
This invention discloses a door opener, comprising a shell consisting of an upper cover plate (1) and a lower cover plate (2). The key is that a pushing device for pushing the door to rotate is provided in the shell. An end of a driving device, which has one or more springs, can drive, via a rotating member (3), the pushing device to rotate. A locking/releasing device, which cooperates with the driving device, is provided at the other end of the driving device. The structure of this invention is unique. It allows the door to be conveniently opened and will not cause any possible harm to the users.
Inventors:
Qi, Ji
Re, Shanchon
Re, Shanchon
Application Number:
JP2021520562A
Publication Date:
October 12, 2023
Filing Date:
December 08, 2019
Export Citation:
Assignee:
Canton Jusen Hardware Precision Manufacturing Company Limited
International Classes:
E05F1/14; E05C19/02; E05F5/02
Domestic Patent References:
| JP3123373U |
Foreign References:
| CN103742016A |
Attorney, Agent or Firm:
Katsufumi Mizuno
Makoto Ide
Hiroshi Suzawa
Yosuke Hisamatsu
Tomidokoro Go
Makoto Ide
Hiroshi Suzawa
Yosuke Hisamatsu
Tomidokoro Go