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US 6,659,257 B2Granted
Torque transmission device
AssigneeAisin Seiki Kabushiki Kaisha
InventorsNaoaki Hoshihara, Kazunari Miyaki
Life of this patent
Estimating the term…
Abstract
A torque transmission device which can rotate an output shaft for transmitting the rotation from the operation side to he device and cannot rotate the output shaft form the device side. The torque transmission device excels in the durability with less wear-out by preventing the generation of the load concentration by the line contact of each component.
Claims15
A torque transmission device comprising:
- an inside support member having a first contact surface portion positioned on an outer periphery of the inside support member;
- an outside support member having a second contact surface portion positioned on an inner periphery of the outside support member;
- a first holding portion in which a clearance between the first contact surface portion and the second contact surface portion is gradually decreased in one peripheral direction;
- a second holding portion in which a clearance between the first contact surface portion and the second contact surface portion is gradually decreased in the other peripheral direction;
- a pair of interposition members which is supported on the first holding portion and the second holding portion respectively;
- an elastic member positioned between the pair of interposition members for biasing each interposition member to a direction in which the each clearance of the first and the second holding portion is decreased;
- an operation member for moving one of the pair of interposition members to a direction in which the clearance of the first or the second holding portion is increased against a biasing force of the elastic member;
- wherein
- each interposition member comprises a third contact surface portion being in surface contact with the first contact surface portion and a fourth contact surface portion being in surface contact with the second contact surface portion.
6 more elements
A torque transmission device comprising:
- an inside support member having a first contact surface portion positioned on an outer periphery of the inside support member;
- an outside support member having a second contact surface portion positioned on an inner periphery of the outside support member;
- a first holding portion in which a clearance between the first contact surface portion and the second contact surface portion is gradually decreased in one peripheral direction;
- a second holding portion in which a clearance between the first contact surface portion and the second contact surface portion is gradually decreased in the other peripheral direction;
- a pair of interposition members which is supported on the first holding portion and the second holding portion respectively;
- an elastic member positioned between the pair of interposition members for biasing each interposition member to a direction in which the each clearances of the first holding portion and the second holding portion is decreased;
- an operation member for moving one of the pair of interposition members to a direction in which the clearance of the first or the second holding portion is increased against a biasing force of the elastic member;
- a gear formed on the inside support member for transmitting an operational force to an external device;
- a shaft inserted through the inside support member, the operation member, the outside support member, and an operation handle, for transmitting the operational force from the operational handle to the external device;
- wherein
- each interposition member comprises a third contact surface portion being in surface contact with the first contact surface portion and a fourth contact surface portion being in surface contact with the second contact surface portion.
8 more elements
A torque transmission device comprising:
- an inside support member having a first contact surface portion positioned on an outer periphery of the inside support member;
- an outside support member having a second contact surface portion positioned on an inner periphery of the outside support member;
- a first inclined surface provided on the inside support member, the first inclined surface gradually increasing a height in one peripheral direction;
- a second inclined surface provided on the inside support member, the second inclined surface gradually increasing a height in the other peripheral direction;
- a pair of interposition members which are disposed on the first inclined surface and the second inclined surface;
- an elastic member positioned between the pair of interposition members for biasing each interposition member to a direction in which each clearances between the inside support member and the outside support member at the first and the second inclined surface is decreased;
- an operation member for moving one of the paired interposition members to a direction in which the clearance between the inside support member and the outside support member at the first and the second inclined surface is increased selectively against a biasing force of the elastic member;
- a gear formed on the inside support member for transmitting an operational force to an external device;
- a shaft inserted through the inside support member, the operation member, the outside support member, and an operation handle, for transmitting the operational force from the operational handle to the external device;
- wherein
- each interposition member comprises a third contact surface portion being in surface contact with the first contact surface portion and a fourth contact surface portion being in surface contact with the second contact surface portion.
8 more elements
Dependencies are inferred from the claim text.