US 6,785,936 B2Granted

Hinge device

AssigneeSugatsune Kogyo Co., Ltd.

InventorShinichiro Koshikawa

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Abstract

The present invention provides a hinge assembly (1) in which a projection and a cam face for converting a biasing force of bias means (9) into a turn biasing force for turning a turnable member (3) disposed at one end portion of a hinge main body (2) in one direction are disposed between the turnable member (3) and a movable member (4) disposed at the hinge main body (2) in such a manner as to be non-turnable but movable in the axial direction, wherein a second movable member (6) and a second turnable member (5) are disposed at the other end portion of the hinge main body (2), and a second projection and a second cam face for converting a biasing force of the bias means (9) in the same direction as the above-mentioned turn biasing force are disposed between the second movable member (6) and the second turnable member (5). Since two converting portions for converting the biasing force of the bias means into a turn biasing force in the manner as mentioned above are provided, insufficiency of the turn biasing force never occurs.

A hinge assembly comprising a hinge main body, a turnable member turnably disposed at one end side of said hinge main body, a movable member disposed at one end portion of said hinge main body such that said movable member is movable in a direction of a rotation axis of said turnable member, but said movable member is non-turnable with respect to said hinge main body and arranged opposite an end face of said turnable member which is oriented towards the other end side of said hinge main body, and bias means for urging said movable member so as to abut with said turnable member, one of an abutment surface of said turnable member and an abutment surface of said movable member being provided with a projection and an other abutment surface being provided with a cam face for converting a biasing force of said bias means into a turn biasing force for turning said turnable member in one direction by abutment of said cam face with said projection when said turnable member is turned into a predetermined position,

characterized in that said hinge assembly further comprises a second turnable member turnably disposed at the other end side of said hinge main body with an axis thereof aligned with said turnable member and non-turnably connected to said turnable member, and a second movable member disposed at the other end portion of said hinge main body such that said second movable member is movable in a direction of a rotation axis of said second turnable member, but said second movable member is non-turnable with respect to said hinge main body and urged by said bias means so as to abut with an end face of said second turnable member which is oriented towards one end side of said hinge main body, one of an abutment surface of said second turnable member and an abutment surface of said second movable member being provided with a second projection and an other abutment surface being provided with a second cam face for converting a biasing force of said bias means into a turn biasing force which acts in the same direction as the turn biasing force converted by said cam face when said turnable member is turned into said predetermined position.

Facts

Application

10/258,261Filed 22 Oct 2002

Priority

JP 2001-05052526 Feb 2001

Published

US 2003/0101538 A15 Jun 2003

Granted

7 Sep 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

E05F 1/1223
With a coil spring parallel with the pivot axis: with a compression or traction spring
H04M 1/0216
Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position:…
E05D 11/087
Friction devices between relatively-movable hinge parts: with substantially axial friction, e.g. friction disks
E05D 11/1078
For maintaining the hinge in two or more positions, e.g. intermediate or fully open: the maintaining means acting parallel to the pivot

Abstract

Claims15