Motorcycle with dual drive chains

Details Motorcycle with dual drive chains Motorcycle with dual drive chains

2006-03-28

2006-03-28

Morris, Lesley D. (Department: 3611)

Motor vehicles

Special wheel base

Having only two wheels

C180S205200, C180S366000, C474S084000

Reexamination Certificate

active

07017698

ABSTRACT:
A motorcycle having two drive chains. The gearbox output includes a left front sprocket and a right front sprocket. The rear wheel includes a left rear sprocket and a right rear sprocket. Left and right chains connect the respective front and rear sprockets. Power is transmitted to the rear wheel symmetrically. The swingarm is not subjected to asymmetric force that would twist it or pull it to one side, and can be made lighter. Swingarm flex can be better specified, making the swingarm a more useful suspension component, especially aiding the rear wheel while bent over in hard cornering over an irregular road surface.

REFERENCES:
patent: 528145 (1894-10-01), Carr
patent: 2630348 (1953-03-01), Schuricht
patent: 3891235 (1975-06-01), Shelly
patent: 3926020 (1975-12-01), Dantowitz et al.
patent: 4003443 (1977-01-01), Boughers
patent: 4301885 (1981-11-01), Kostron
patent: 4398740 (1983-08-01), Clem
patent: 4410060 (1983-10-01), Cunard
patent: 5533741 (1996-07-01), Matsuo
patent: 6267701 (2001-07-01), Mott
patent: 6736464 (2004-05-01), Pidoux
patent: 2003/0006080 (2003-01-01), Buell et al.
patent: 2004/0144584 (2004-07-01), Phillips et al.
patent: 2290507 (1996-01-01), None

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