Patent ID: 6821236
Filing Date: 2004-11-23
Classification: A63B

Abstract:
An exerciser comprising:a base including a hub provided therein, a spindle rotatably retained in said hub of said base, and including a peripheral plate extended radially outward therefrom, a rotary member rotatably engaged onto said spindle, a unidirectional driving device including a frame engaged between said peripheral plate and said rotary member, and said frame of said unidirectional driving device including a bore formed therein for receiving said peripheral plate of said spindle, and at least one channel formed therein and communicating with said bore of said frame and having a shallower end and a deeper end, a roller received in said at least one channel of said frame, a spring biased projection engaged in said frame and engaged with said roller for biasing said roller toward said shallower end of said at least one channel of said frame and for allowing said roller to be clamped between said frame and said peripheral plate of said spindle, and a pair of cranks coupled to said spindle for driving said rotary member unidirectionally with said unidirectional driving device.