Patent ID: 6267709
Filing Date: 2001-07-31
Classification: A63B

Abstract:
An isokinetic resistance apparatus, comprising:a motor having an output shaft;a motor controller adapted to control power to the motor to maintain a first constant rotational speed of the output shaft;a driven shaft;a drive linkage coupling the output shaft with the driven shaft, such the output shaft of the motor imparts movement to rotate the driven shaft in a first rotational direction at a second constant rotational speed;a force receiving member;a force transmitting linkage between the force receiving member and the driven shaft, the force transmitting linkage including at least one unidirectional clutch adapted to move freely about the driven shaft in a second rotational direction and engage the driven shaft in the first rotational direction;a force exerted upon the force receiving member tending to move the unidirectional clutch faster than the second constant rotational speed in the first rotational direction is transmitted through the driven shaft and the drive linkage to the output shaft of the motor, the motor controller adjusts power to the motor to compensate for such force and proportionately increase resistance to maintain the first constant rotational speed of the output shaft.