Weight stack with alignment sleeve

Details Weight stack with alignment sleeve Weight stack with alignment sleeve

1993-05-04

1994-12-20

Apley, Richard J.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

A63B 2106

Patent

active

053742290

ABSTRACT:
A resistance weight stack for an exercise machine includes a stack of weight plates each having identical sleeves fixed in central apertures of the plates for receiving the weight stack pin. The upper and lower ends of the sleeves each have a plurality of equi-angularly spaced projections and recesses. The projections on the upper ends of the sleeves project above the upper surfaces of the associated weights and are received in the recesses of the lower ends of the next adjacent upper weights for locating and angularly aligning the weight plates relative to each other. The sleeves each have a lateral passage through the wall thereof for allowing a key to be inserted into the weight stack pin to connect the plate to the weight stack pin.

REFERENCES:
patent: 1053109 (1913-02-01), Beach
patent: 3971555 (1976-07-01), Mahnke
patent: 4601466 (1986-07-01), Lais
patent: 4625959 (1986-12-01), Schleffendorf
patent: 4691916 (1987-09-01), Voris
patent: 4834365 (1989-05-01), Jones
patent: 4878662 (1989-11-01), Chern

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