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1. (WO2010114689) HIGH EFFICIENCY BICYCLE HUB

Pub. No.:    WO/2010/114689    International Application No.:    PCT/US2010/027105
Publication Date: Fri Oct 08 01:59:59 CEST 2010 International Filing Date: Sat Mar 13 00:59:59 CET 2010
IPC: B60B 27/02
Applicants: BEAR CORPORATION
FRENCH, George
Inventors: FRENCH, George
Title: HIGH EFFICIENCY BICYCLE HUB
Abstract:
A high efficiency bicycle hub (20) for near frictionless free wheeling comprising a hub (30) having a toothed engagement ring (704), a driver (42) having a retractable engagement member (700) that can engage and disengage from the hub (30), and a retraction device (702) to facilitate a disengaged configuration. The retraction device (702) comprises a retaining ring (728) having retraction members (730) and the retractable engagement member (700) comprises reciprocal retraction members (736) to "catch" the retraction member (730) to maintain a disengaged configuration. In use, forward rotation of the driver (42) engages the retractable engagement member (700) with the toothed engagement ring (704) of the hub (30) to drive the hub (30). Reverse rotation of the driver (42) rotates the reciprocal retraction members (736) underneath or behind the retraction member (730) thereby disengaging the driver (42) from the hub (30).