Bicycle shifting control unit
AssigneeShimano Inc.
InventorToshio Shibata
Life of this patent
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Abstract
A bicycle shifting control unit includes a control member operable by a user, and a rotating body for rotating in one direction to wind a shifting cable and for rotating in another direction to unwind the shifting cable. A first transmission transmits movement of the control member into rotation of the rotating body at a first transmission ratio, and a second transmission transmits movement of the control member into rotation of the rotating body at a second transmission ratio. The second transmission ratio is greater than the first transmission ratio. A coupling mechanism is provided for allowing the control member to be selectively coupled to the first and second transmissions.
Claims20
A bicycle shifting control unit comprising:
- a rotating body (10) for rotating in one direction to wind a shifting cable and for rotating in another direction to unwind the shifting cable;
- a control member (20,80) operable by a user;
- a first transmission (30) for transmitting movement of the control member (20,80) into rotation of the rotating body (10) at a first transmission ratio;
- a second transmission (40) for transmitting movement of the control member (20,80) into rotation of the rotating body (10) at a second transmission ratio;
- a coupling mechanism (22,22a,61) for allowing the control member (20,80) to be selectively coupled to the first transmission (30) and to the second transmission (40);
- wherein the second transmission ratio is greater than the first transmission ratio.
Dependencies are inferred from the claim text.