Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Patent
1994-12-30
1996-09-10
Apley, Richard J.
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
482 98, 482134, 482137, 482139, A63B 2106, A63B 2308
Patent
active
055540902
ABSTRACT:
An improved calf exercise machine includes a frame with a seat for supporting an exerciser in an exercise position with the legs extended horizontally, a lever pivotally connected to the frame in front of and below the seat, and an engagement plate secured to the lever and adapted to be engaged and acted upon by the upper portions of the feet of the exerciser via an outward toe extension movement followed by a rearward toe retraction motion. This movement arcuately rotates the lever about its pivot axis, with a corresponding flexion and then extension of the calf muscles. Weight holding hubs connected to the lever hold a selected number of weighted plates to provide a desired weight resistance to pivotal extension of the lever via the outwardly directed foot movement. This machine optimally isolates the calf muscles during calf flexion/extension. Additionally, this calf exercise machine is safer than prior calf exercise machines because the exercise motion is performed from a seated position, and the seat design minimizes wear and tear on the exerciser's body, due to improved distribution of the weight resistance exercised against.
REFERENCES:
patent: 4621810 (1986-11-01), Cummins
patent: 4822038 (1989-04-01), Maag
patent: 4838548 (1989-06-01), Maag
patent: 5106081 (1992-04-01), Webb
patent: 5135449 (1992-08-01), Jones
patent: 5263914 (1993-11-01), Simonson et al.
patent: 5334120 (1994-08-01), Rasmussen
patent: 5366432 (1994-11-01), Habing et al.
patent: 5484365 (1996-01-01), Jones et al.
Body Masters Sports Industry Inc. advertisement in "Mr. America" program, Sep. 8, 1979.
Apley Richard J.
Hammer Strength Corporation
Hwang Victor K.
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