Hub clutch device for bicycle
AssigneeChosen Co., Ltd.
InventorsTien-Chin Sheu, Wen-Sheng Chen
Life of this patent
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Abstract
A hub clutch device for a bicycle includes a threaded shaft, a hub, a positioning sleeve, a movable sleeve, an elastic member, a fixing seat, and a plurality of urging balls. Thus, each of the urging balls is moved between a respective one of the adjusting slots of the movable sleeve and a respective one of the adjusting slots of the fixing seat to detach the fixing seat and the movable sleeve from the positioning sleeve, so that when the positioning sleeve and the hub are rotated, the fixing seat is not rotated, so that the freewheel will not be rotated by the wheel when the pedal stops operating.
Claims14
A hub clutch device, comprising:
- a threaded shaft;
- a hub rotatably mounted on the shaft;
- a positioning sleeve secured in the hub for rotating the hub and having a first end having an inner wall formed with a tapered face;
- a movable sleeve movably mounted in the positioning sleeve and having a first end having an outer wall formed with a tapered face detachably urged on the tapered face of the positioning sleeve and a second end having a face formed with a plurality of arc-shaped adjusting slots;
- an elastic member mounted on the shaft and biased between the hub and the movable sleeve;
- a fixing seat rotatably mounted on the shaft and having a first end having a face formed with a plurality of arc-shaped adjusting slots each aligning with a respective one of the adjusting slots of the movable sleeve;
- and
- a plurality of urging balls each movably mounted between a respective one of the adjusting slots of the movable sleeve and a respective one of the adjusting slots of the fixing seat.
Dependencies are inferred from the claim text.