A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 69/16 (2006.01) A63B 22/08 (2006.01)
Patent
CA 2116716
The transmission system of an exercise bicycle includes a first drive shaft mounted rotatably on the rear end portion of a frame and provided with foot pedal cranks on two ends thereof, second and third drive shafts mounted rotatably on the frame, a one-way clutch secured on the second drive shaft, a first sprocket mounted securely on the first drive shaft, second and third sprockets mounted securely on the second drive shaft, a fourth sprocket mounted securely on the third drive shaft, a fifth sprocket mounted securely on an axle of a resistance wheel that is mounted rotatably on a front end portion of the frame, a first drive chain trained between the first sprocket and the one-way clutch, a second drive chain trained between the second and fifth sprockets, and a third drive chain trained between the third and fourth sprockets. The exercise bicycle has a reciprocating arm assembly which includes a pair of reciprocating arm levers mounted pivotally on the front end portion of the frame and a pair of crank arms, each of which having a first end connected pivotally to a lower end of a respective one of the arm levers and a second end connected eccentrically to a respective end of the third drive shaft.
Giant Manufacturing Co. Ltd
Shapiro Cohen
LandOfFree
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