Compound bow draw check

Abstract

A compound bow drawcheck is disclosed for a compound bow which has a bow string connected to a bow cable and a rotatable cable guide over which the bow cable is guided, whereby the cable guide rotates in a predetermined relationship with the bow cable when the bowstring is drawn and between a first position wherein the bow string is not drawn and a second position wherein the bow string is at a desired drawl. The draw check includes a detector which detects when the cable guide is in the second position and an indicator which produces a signal when the second position is detected. The detector is either an electrical switch operated by mechanical interaction between a contact strip on the cable guide and electrical contacts on the bow limb carrying the cable guide, an optical sensor detecting a mark on or a hole in the cable guide or a sensor detecting a magnetic strip on the guide. The indicator includes a signal light or LED or a buzzer. The draw check is more accurate than prior art devices and detects underdraw as well as overdraw.

Dependencies are inferred from the claim text.