Archery bow with force-multiplying linkage

Claim 1

An archer'' s bow comprising: an elongated bow member having opposite ends; a rocker arm member pivotally secured to said bow member at each said end, each said member having a first, second and third location spaced predetermined distances from one another, each said member being secured to said ends at its first locations and being so oriented that said respective second and third locations each lie on an opposite side of said bow member ends; a flexible draw cable member secured at its opposite ends to said rocker arm members at their respective second locations; an elastic device interconnecting said members at their respective third locations; and link means interconnecting said rocker arm members; said draw cable member and said elastic device together being of equal lengths and serving to maintain said rocker arm members in a position of rest relative to said bow member whereby lines joining, respectively, said second and third locations are parallel to one another; said rocker arm members being angularly displaced from their said position of rest to a fully bow drawn positions during which alteration of said elastic device serves to apply a force to said rocker arm members in response to the alteration of said elastic device, said link means serving to assure that the alteration of said rocker arm members with respect to one another are equal in magnitude and opposite in direction and said respective first and third locations of each rocker arm member and a line along which said force is applied, with the bow drawn being substantially along a straight line.