Title:
HINGE DEVICE CAPABLE OF HOLDING COVER OF COLLAPSIBLE APPARATUS TO BE OPENED AT WIDE ANGLE AND CLOSED
Document Type and Number:
Japanese Patent JP3818407
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hinge device capable of holding a cover of a collapsible apparatus such as a portable telephone or the like in the closed state on the apparatus main body and opening the same at a required open angle to be held, by which an opening and holding function to a wide angle over 180° can be exhibited.
SOLUTION: A pair of engagement projecting parts 8a, 8b provided in different diameter positions on one diametral line of a movable disc 5 rotated with a cover are engaged with a pair of first engagement recessed parts 6a, 6b provided in different diameter positions on one diametral line in a fixed butt end face 4b of a fixed disc 4 provided on the apparatus main body by spring force to keep closing of the cover. The fixed disc 4 is moved in the axial direction against the spring by opening movement of the cover to turn the paired engagement projecting parts 8a, 8b of the movable disc 5 by a wide opening angle α°(225°), and the engagement to the paired second engagement recessed parts 6c, 6d provided on the different diameter positions on the other diametral line in the fixed butt end face 4b is switched to keep the opening condition of the cover.
Inventors:
Shinichiro Koshikawa
Application Number:
JP13925597A
Publication Date:
September 06, 2006
Filing Date:
May 14, 1997
Export Citation:
Assignee:
Sugatsune Industry Co., Ltd.
Saitama NEC Corporation
Ohashi Technica Co., Ltd.
Saitama NEC Corporation
Ohashi Technica Co., Ltd.
International Classes:
E05D11/08; F16C11/04; E05D11/10; F16C11/10; (IPC1-7): E05D11/10; E05D11/08
Domestic Patent References:
| JP711831A | ||||
| JP734751A | ||||
| JP849464A | ||||
| JP1112281U |
Attorney, Agent or Firm:
Shinichi Kikuchi
Toru Kikuchi
Toru Kikuchi