Title:
扉開閉装置
Document Type and Number:
Japanese Patent JP5487745
Kind Code:
B2
Abstract:
Coil springs are incorporated, with a longitudinal direction oriented vertically, into the top and bottom end parts of hinge pieces provided on side surfaces of opposing door panels of a folding door and that connect the doors panels together. A portion of a pin plate is inserted into the coil springs at the top and bottom end parts of the coil springs and attached to the coil springs. The pin plate that is inserted into the top end part of the coil spring incorporated into the top end part of the hinge piece and the pin plate that is inserted into the bottom end part of the coil spring incorporated into the bottom end part of the hinge piece are fixed to the hinge pieces by brackets. The folding door is closed by the restoring force generated by the twisting of the coil springs.
Inventors:
Eita Minegishi
Satoru Shibata
Satoru Shibata
Application Number:
JP2009141667A
Publication Date:
May 07, 2014
Filing Date:
June 12, 2009
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
E05F1/12; E06B3/48
Domestic Patent References:
| JP10317777A | ||||
| JP62169168U | ||||
| JP2010037735A |
Foreign References:
| US5606774 |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita
Takashi Noguchi
Kazuhiko Saishita