Archery bow limb

Details Archery bow limb Archery bow limb

1984-04-16

1987-06-02

Pinkham, Richard C.

Mechanical guns and projectors

Spring

Bow

124DIG1, F41B 500

Patent

active

046694455

ABSTRACT:
Limb/pulley torque in a compound bow is negated by providing a restoring force, as a result of the deflected bow when drawn, comprised of unequal components which balance the torsional force imparted to the bow end by the summation of forces applied by the cable. In accordance with one embodiment, the unequal components are achieved by employing unequal cross sectional areas in the material of the respective two sides about the longitudinal axis of the bow. In another embodiment, the pulley/cam structure and the tieoff element which support the cable are spaced at predetermined distances from the longitudinal axis of the bow to yield respective torque having equal magnitude and opposite direction.

REFERENCES:
patent: 1877273 (1932-09-01), Cowdery
patent: 4350138 (1982-09-01), Caldwell

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