Multi-speed drive hub with a separate mounting ring for the plan

Details Multi-speed drive hub with a separate mounting ring for the plan Multi-speed drive hub with a separate mounting ring for the plan

1993-02-05

1995-03-21

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Gear shiftable axially to disconnect or vary ratio

475299, B62M 1116, F16H 346

Patent

active

053991281

ABSTRACT:
A multi-speed drive hub for bicycles includes a hub shaft (1), a driver (7), a hub sleeve (9), as well as a planetary gear train (21) as part of the hub speed-changing transmission. The planetary gear train in turn has a planet gear carrier (17); at least one multistep planet gear (23); sun gears (25) meshing with the steps of the planet gear (23), which sun gears are selectively capable of being linked with the hub shaft (1) against rotation and an internal gear (11). Also provided are a coupling or clutching mechanism for coupling the driver with the planet gear carrier or with the internal gear as well as a speed-changing mechanism for the hub speed-changing transmission. In order to achieve quiet, low-wear running, the planet gear carrier (17) is mounted in a manner capable of rotation at the hub shaft on both sides of the planet gears (23).

REFERENCES:
patent: 1058510 (1913-04-01), Winkler
patent: 4721013 (1988-01-01), Steuer et al.
patent: 4973297 (1990-11-01), Bergles

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