Eccentric pulley mechanism for compound archery bow

Details Eccentric pulley mechanism for compound archery bow Eccentric pulley mechanism for compound archery bow

1992-02-21

1993-05-18

Kundrat, Andrew V.

Mechanical guns and projectors

Spring

Bow

124900, F41B 510

Patent

active

052111555

ABSTRACT:
An eccentric pulley mechanism for a compound archery bow includes an inner eccentric wheel pivotally mounted on the distal end of a resilient bow limb, and an outer pulley wheel which is rotatable relative to the inner eccentric wheel. The inner and outer wheels respectively include rotationally offset detents and notches which are operative for interengaging the inner and outer rotating wheels when the bowstring is pulled to a fully drawn position. As the bowstring is being drawn, the outer pulley wheel and its notch rotate about the inner wheel until reaching a maximum draw where the detent and notch engage and the inner and outer wheels become operable for rotating as an eccentric wheel. When the bowstring is released the engaged inner and outer wheels eccentrically rotate back and impart an increased velocity to the bowstring as it propels an arrow.

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