Hack-squat machine

Details Hack-squat machine Hack-squat machine

1980-01-21

1982-06-08

Pinkham, Richard C.

Undertaking

272134, A63B 2106

Patent

active

043336442

ABSTRACT:
Disclosed herein is a hack-squat machine in which hips, thighs, hamstrings, calves, and lower back muscles are exercised. The device includes a base frame, a weight cage having a plurality of weights supported therein, and a drive system including sprockets, a cam and chain drive attached to a padded back support which is disposed upon a trackway. One's feet are placed upon an inclined platform the angle of which is adjustable and the exercise comprises sliding the back support up and down the trackway. The back support is provided with a sled disposed between the trackway and a back face of the back support that is capable of engaging and dis-engaging so that the back support can be advanced up and down the trackway without the encumbrance of the weights so that an exerciser can not only vary the degree to which the squat exercise will be performed, but also will allow one to disengage the exercise at any time should the need arise.

REFERENCES:
patent: 3622154 (1971-11-01), Williams
patent: 3866914 (1975-02-01), Jackson
patent: 4195834 (1980-04-01), Lambert

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