B - Operations – Transporting – 62 – M
Patent
B - Operations, Transporting
62
M
280/27, 74/29
B62M 1/02 (2006.01) B62M 9/00 (2006.01) B62M 23/00 (2006.01)
Patent
CA 2037891
A two-wheel drive cycle comprises a frame, a front fork assembly mounted on the frame through a pivotal connection to steer the cycle, a front wheel rotating on the fork assembly about a first axis, and a rear wheel rotating on the frame about a second axis. A front sprocket is mounted on the front wheel and centered on the first axis to drive the front wheel, while a rear sprocket, mounted on the rear wheel, is centered on the second axis and driven through the pedals or motor. A chain or belt is meshed with both the front and rear sprockets and guided between these front and rear sprockets through a plurality of gears and pulleys, including a set of gear and pulley engaging the chain or belt and rotatively mounted on the frame close to the pivotal connection. A spring mechanism lengthens and shortens the chain or belt loop as the front fork assembly is turned. In operation, the front wheel is driven through the pedals or motor, the rear sprocket, the chain or belt meshed with both the front and rear sprockets, and the front sprocket.
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