Substantially constant-force exercise machine

Details Substantially constant-force exercise machine Substantially constant-force exercise machine

2006-06-13

2006-06-13

Crow, Stephen R. (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing resilient force resistance

Reexamination Certificate

active

07060012

ABSTRACT:
A resistance module for an exercise machine for providing a substantially constant force through a range of motion includes at least one cantilever spring and at least one rigid member movable with respect to one another along a path of travel. The rigid member causes the cantilever spring to deflect and produce a resistance force. The cantilever spring has an anchored end and a deflection end. The rigid member engages the deflection end of the cantilever spring, and constrains the deflection end to a predetermined path of deflection as the cantilever spring and the rigid member move with respect to one another. The rigid member can be a non-planer contact surface along which the deflection end tracks, or a pivot link. The module can include means for operatively coupling at least one of the cantilever spring and the at least one rigid member to an exercise machine.

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Millar, A. J., Howell, L. L., and Leonard, J. N.; Design and Evaluation of Compliant Constant-Force Mechanisms; Proceedings of the 1996 ASME Design Engineering Technical Conferences and Computers in Engineering Conference, Aug. 1996; DETC2002/MECH-34206.
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