Title:
建資材用ドアの自動復帰ヒンジ装置
Document Type and Number:
Japanese Patent JP5518476
Kind Code:
B2
Abstract:
A hinge apparatus includes an upper body, a lower body, a shaft whose lower end portion is rotatably installed in the lower body, a piston whose outer circumference is slidably installed along the inner surface of the lower body, a rotational/linear motion converter which converts a rotational motion of the shaft into an axial linear motion of the piston, a damping unit provides a damping function selectively where the piston ascends according to return of the door, a torsion spring rotates the shaft in the door closing direction, and a clutch unit for stopping the elastic force due to reverse twisting of the spring or for restoring the elastic force of the spring.
Inventors:
Choi, Son-Wo
Hong, Chang Ho
Hong, Chang Ho
Application Number:
JP2009523713A
Publication Date:
June 11, 2014
Filing Date:
August 03, 2007
Export Citation:
Assignee:
I-ONE Innotech Co., Ltd.
International Classes:
E05F3/12; E05D3/02; E05D5/04; E05F1/12
Domestic Patent References:
| JP942351A | ||||
| JP3413356Y1 | ||||
| JP8312237A | ||||
| JP58132088U |
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Tetsuya Kazama