Exercise devices – Having specific electrical feature – Equipment control
Patent
1994-05-13
2000-02-22
Apley, Richard J.
Exercise devices
Having specific electrical feature
Equipment control
482 92, 482111, 482903, A63B 2100
Patent
active
060274298
ABSTRACT:
A variable resistane exercise device provides a variable resisting force in response to a user applied force. The variable resistance exercise device includes at least one rotating force transmitting means for inputting a user applied force as a rotational force to be resisted, and at least one force transmission member for transmitting the user applied force. The user applied force is resisted by varying the viscosity of a viscosity variable fluid which surround plates rotated by the user applied force. Thus a braking force is applied to actively resist the user applied force. In accordance with the invention, a multi-configurable multi-programmable exercise device is provided which may be used in a variety of exercise modes to provide a resistive force to a user-applied force during a range of motion of a particular exercise. In a preferred embodiment of the present invention, a variable resistance device resists a user-supplied force in one rotational direction only. A gear and clutch system translates a reciprocating user-supplied force, corresponding to a reciprocating range of motion, into the one rotational direction.
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Terrence P. Lynch, "Magnetic Particle Brake Customizes Weightlifting Routines," Design News, Mar. 21, 1991, pp. 244-245.
Apley Richard J.
NordicTrack, Inc.
Richman Glenn E.
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