Leg curl exercise machine

Details Leg curl exercise machine Leg curl exercise machine

1990-09-12

1991-11-19

Apley, Richard J.

Undertaking

272132, 272144, 128 25R, A63B 2100

Patent

active

050660039

ABSTRACT:
A leg curl exercise machine includes a frame, a platform supported by the frame along a vertical midplane and a pair of levers pivotally connected to the frame in front of the platform. The forward ends of the levers are adapted to hold removable weights and, during performance of a leg curl exercise, are adapted to be acted upon by the legs of an exerciser supported on the platform. The levers pivot along outer planes of movement that diverge from the front of the frame and tilt inwardly toward the top of the frame, thereby coupling the force applied by the legs against separate weight resistances that move through planes that naturally accommodate the musculoskeletal make-up of a person.

REFERENCES:
patent: 3858873 (1975-01-01), Jones
patent: 3998454 (1976-12-01), Jones
patent: 4720099 (1988-01-01), Carlson
Brochure, "Leverage Machines" by Nautilus.RTM., Instruction Manual, p. 6.

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