COMPOUND BOW FOR INCREASING PROPULSION FOR LAUNCHING A BOW AND REDUCING POWER FOR DRAWING A BOWSTRING

摘要

PURPOSE: A compound bow for increasing propulsion for launching a bow and reducing power for drawing a bowstring is provided to reduce the noise and vibration of a main and secondary pulley by using a damping member.;CONSTITUTION: A compound bow comprises a bow main body(100), a rotary shaft(101), a dual pulley, a balance cable(141), a stopper(160), a cable(143), a driven pulley(190) and a bow string(142). The rotary shaft is fixed to one side end of the bow main body. The dual pulley has a main part and secondary pulleys(110,120). The secondary pulley is installed at the rotary shaft to rotate. The both end of the balance cable is fixed to the main part and the secondary pulley. The balance cable is wound in the main part and the secondary pulley in the same direction. A cam cable has one end fixed to the main pulley and the other end fixed to the end part of the main body.;COPYRIGHT KIPO 2011