Patent ID: 6823067
Filing Date: 2004-11-23
Classification: H04M

Abstract:
A hinge device comprising:a hinge element which has an axis body and a hinge main body and which is constructed so that said axis body possesses a predetermined torque characteristic around a rotational axis with respect to said hinge main body; a lock mechanism which functions so as to lock rotational movement of said axis body around the rotational axis; and a lock release mechanism which releases locking by said lock mechanism wherein said lock mechanism comprises a first lock member which is provided on the side of said axis body so as to be unable to move rotationally relative to said axis body, and a second lock member which is provided on the side of said hinge main body so as to be unable to move rotationally relative to said hinge main body; said first lock member comprises a stopper portion; said second lock member comprises an engagement body which can engage with respect to said stopper portion, and which is biased in the direction towards said first lock member by a biasing means; said lock function by said lock mechanism is provided by said engagement body engaging into said stopper portion; and said lock release mechanism comprises a push button which is provided on the side of said axis body and which comprises a projection which can be inserted into said stopper portion, and, by said projection being inserted into said stopper portion, said engagement body is pushed in against the resistance of the biasing force due to said biasing means, and thereby said lock is released.