Hub transmission assembly

Details Hub transmission assembly Hub transmission assembly

2009-04-10

2011-12-13

Young, Edwin A (Department: 3655)

Machine element or mechanism

Gearing

Interchangeably locked

C475S349000

Reexamination Certificate

active

08074530

ABSTRACT:
A multi-speed internal bicycle hub transmission assembly includes a stationary hub axle, a driver, a hub shell, a power transmission mechanism and a shift control mechanism. The stationary hub axle includes a positioner that is movable in a radial direction. The driver and the hub shell are rotatably supported to the hub axle. The power transmission mechanism is operably disposed between the driver and the hub shell for transmitting rotational power from the driver to the hub shell through a plurality of power transmission paths. The shift control mechanism includes a pawl control member movable in rotational directions relative to the hub axle to a plurality of orientations. Each orientation corresponds to selection of a corresponding one of the plurality of power transmission paths of the power transmission mechanism. The positioner is disposed to urge the pawl control member to remain the selected orientation.

REFERENCES:
patent: 4694708 (1987-09-01), Hartmann
patent: 5863270 (1999-01-01), Chen et al.
patent: 6267704 (2001-07-01), Patterson et al.
patent: 2002/0183159 (2002-12-01), Okochi
patent: 2003/0040397 (2003-02-01), Wu
patent: 2009/0005210 (2009-01-01), Fukui et al.
patent: 2009/0005211 (2009-01-01), Hino
patent: 2009/0023542 (2009-01-01), Hino

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