Internal transmission hub assembly

Details Internal transmission hub assembly Internal transmission hub assembly

2007-06-28

2010-10-05

Wright, Dirk (Department: 3655)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural drive ratios other than unity

Reexamination Certificate

active

07806798

ABSTRACT:
A multi-speed internal bicycle hub transmission assembly includes a hub axle, a driver, a hub shell, a power transmission mechanism and a shift control mechanism. The driver and the hub shell are rotatably supported to the hub axle. The power transmission mechanism is disposed between the driver and the hub shell for transmitting rotational power from the driver to the hub shell. The shift control mechanism includes a shift controller and a positioner. The shift controller is movable in rotational directions relative to the hub axle to a plurality of orientations. Each orientation of the shift controller corresponds to selection of a corresponding one of plurality of power transmission paths of the power transmission mechanism. The positioner is non-movable in the rotational direction relative to the hub axle and is biased into contact with the shift controller.

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patent: 7708666 (2010-05-01), Hino
patent: 19927698 (2000-12-01), None

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