Weight release mechanism for weight-lifting equipment

Details Weight release mechanism for weight-lifting equipment Weight release mechanism for weight-lifting equipment

1995-02-27

1997-07-01

Apley, Richard J.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

482 93, A63B 2106

Patent

active

056431511

ABSTRACT:
An exercise machine including a weight stack composed of a plurality of separate weights; a lifting bar disposed for movement within the wieght stack; a plurality of pins extendable from within the lifting bar for removably securing a portion of the weight stack to the lifting bar and retractable within the lifting bar, whereby the total weight carried by the lifting bar is determined by the portion of the weight stack removably secured to the lifting bar by plurality of pins, wherein the extension of the plurality of pins from within the lifting bar secures the portion of the weight stack to the lifting bar and the retraction of the plurality of pins within the lifting bar removes the portion of the weight stack from the lifting bar; a plurality of springs for retracting the pins within the lifting bar; a key for extending one or more of the pins from the lifting bar; a cable connected to the key; a reel for biasing the cable and key in one direction; and a foot-pedal for pulling the cable and key in the other direction whereby movement of the key in one direction extends the pins to add weights to the stack and movement in the other direction allows the pins to retract to drop weights from the stack.

REFERENCES:
patent: 4746113 (1988-05-01), Kissel
patent: 5350344 (1994-09-01), Kissel

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