Bow with take-up cables anchored to riser

Abstract

A bow includes a riser, a pair of limbs, two pulleys, and a bow string set. Each pulley includes a primary wheel and a secondary wheel adjacent to the primary wheel. The bow string set includes a let-off cable, a first take-up cable and a second take-up cable. The let-off cable has opposite ends respectively trained about the primary wheels of the pulleys. The first take-up cable has one end strung about the secondary wheel of one of the pulleys, and the other end anchored to a right rear side of the riser, without extending across a launching path of the bow. Similarly, the second take-up cable has one end strung about the secondary wheel of the other pulley, and the other end anchored to a left rear side of the riser, without extending across the launching path of the bow.

1 . A bow comprising:
 a riser having two hook portions respectively positioned on right and left rear sides of the riser;   a pair of limbs attached to opposite ends of the riser;   two pulleys respectively mounted on rear tips of the limbs, each pulley including a primary wheel and a secondary wheel adjacent to the primary wheel; and   a bow string set including a let-off cable, a first take-up cable and a second take-up cable; the let-off cable having opposite ends respectively trained about the primary wheels of the pulleys; the first take-up cable having one end strung about the secondary wheel of one of the pulleys, and the other end anchored to the hook portion on the right rear side of the riser, without extending across a launching path of the bow; and the second take-up cable having one end strung about the secondary wheel of the other pulley, and the other end anchored to the hook portion on the left rear side of the riser, without extending across the launching path of the bow.   
     
     
         2 . A bow as recited in  claim 1 , further comprising a stock connected to a rear side of the riser, wherein the stock has in its top a track for receiving a projectile and at its bottom a trigger for launching the projectile. 
     
     
         3 . (canceled) 
     
     
         4 . A bow as recited in  claim 1 , wherein at least one of the pulleys is eccentric.