Variable resistance exercise apparatus

Details Variable resistance exercise apparatus Variable resistance exercise apparatus

1998-02-18

2000-09-19

Donnelly, Jerome

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing resilient force resistance

482127, 482142, A63B 2102

Patent

active

061204234

ABSTRACT:
An exercise apparatus with a plurality of infinitely adjustable resistance mechanisms, a flat horizontal platform having a plurality of sockets located about its perimeter capable of receiving the resistance mechanisms and a pair of smaller arm sized platforms, also containing sockets, rotatably pinned to the main platform. The resistance mechanism has a constant force spring that allows a nylon cable to retract quickly and has a belville spring washer that increases resistance on the retractable cable as a tension knob is turned clockwise. A ratchet plate allows resistance to be felt on the outward pull of the cable but no resistance to be felt on the inward retraction of the cable. A ring member attaches to the nylon cable is capable of acting as a hand grip or a foot retainer.

REFERENCES:
patent: 3596907 (1971-08-01), Brighton
patent: 4170351 (1979-10-01), Ozbey et al.
patent: 5540642 (1996-07-01), Sprague
patent: 5685811 (1997-11-01), McShane et al.

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