Clutch unit
AssigneeNtn Corporation
InventorsMasahiro Kurita, Masahiro Kawai
Life of this patent
Estimating the term…
Abstract
A clutch unit comprises an outer ring 1 as an input-side member, an output shaft 2 as an output-side member, an inner ring 3 as a control member, an outer ring 4 as a stationary-side member, a first clutch part 5 interposed between the outer ring 1 and the inner ring 3m, and a second clutch part 6 interposed between the outer ring 4 and the output shaft 2. Input torque input from an operation lever 13 is transmitted in the path of the outer ring 1→the first clutch part 5→the inner ring 3→the output shaft 2. Reverse input torque input from the output shaft 2 is locked with the outer ring 4 through the second clutch part 6.
Claims68
A clutch unit comprising:
- an input-side member to which a torque is input;
- an output-side member from which a torque is output;
- a control member intervening in a torque transmission path between the input-side member and the output-side member;
- a stationary-side member constrained from rotation;
- a first clutch part arranged between the input-side member and the control member;
- and
- a second clutch part arranged between the stationary-side member and the output-side member,
- wherein an input torque from the input-side member is transmitted to the output-side member through the first clutch part and the control member, and a reverse input torque from the output-side member is locked with the stationary-side member through the second clutch part, and
- wherein the first clutch part comprises locking means for locking the input-side member and the control member with respect to the inpit torque from the input-side member, and returning means for returning the input-side member to a nuetral position at which the input torque is not input when the input-side member is released, and
- wherein the locking means comprises cam surfaces provided to the input-side member, a circumferential surface provided to the control member, and engaging members interposed between the cam surfaces and the circumferential surface, and the returning means comprises a rotatable retainer for retaining the engaging members and an elastic member for coupling the retainer with a non-rotating member in the direction of rotation.
Dependencies are inferred from the claim text.