Power-assist system and method for bicycles

Details Power-assist system and method for bicycles Power-assist system and method for bicycles

2005-12-20

2005-12-20

Hurley, Kevin (Department: 3611)

Motor vehicles

Special wheel base

Rider propulsion with additional source of power, e.g.,...

Reexamination Certificate

active

06976551

ABSTRACT:
A power-assist system for a bicycle by which the bicycle can be operated in various modes. There is a pedal-alone mode, a power-assist mode, a combined pedaling and power-assist mode, and a coasting mode. An overriding clutch is positioned between the pedal section and the sprocket, and a second overriding clutch is positioned between a speed reducing gear section, driven by a motor, and a power-assist shaft located in the crank housing.

REFERENCES:
patent: 833584 (1906-10-01), Cress
patent: 4044851 (1977-08-01), Shaw et al.
patent: 4280581 (1981-07-01), Rudwick
patent: 4346777 (1982-08-01), Restelli
patent: 4871042 (1989-10-01), Hsu et al.
patent: 5370200 (1994-12-01), Takata
patent: 5505277 (1996-04-01), Suganuma et al.
patent: 5845727 (1998-12-01), Miyazawa et al.
patent: 5909781 (1999-06-01), Yonekawa et al.
patent: 6276479 (2001-08-01), Suzuki et al.
patent: 6296072 (2001-10-01), Turner
patent: 6554730 (2003-04-01), Sakai et al.

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