Dual-feed single-cam compound bow

Details Dual-feed single-cam compound bow Dual-feed single-cam compound bow

F - Mech Eng,Light,Heat,Weapons

41

B

F41B 5/10 (2006.01)

Patent

CA 2089799

A dual-feed single-cam compound bow construction which eliminates one of the let-off cams from a conventional compound bow by providing a dual-feed single cam with an opposed concentric pulley whereby the increment of feed-out caused by the drawing of the bow is balanced against the increment of take-up so that the same amount of cable is fed to both ends of the bowstring during the drawing operation. This is accomplished by designing the respective radii of the cam and pulley grooves to balance the rate of feed-out of both feed-out sections of cable from the let-off cam.

Arc à poulie à came unique et à alimentation double, dans laquelle les deux cames de déroulement de l'arc à poulie classique sont remplacées par une came unique à alimentation double et une poulie concentrique placée en face de la came, mécanisme grâce auquel, lorsque l'on bande l'arc, une longueur équivalente de corde est déroulée ou enroulée de sorte que la même longueur de corde arrive à chaque bout de l'arc. Cet équilibre est assuré en choisissant les rayons respectifs des rainures de la came et de la poulie de façon à équilibrer le taux de déroulement des deux dévidoirs de la came.

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