Compound bow
First Claim
1. An archery bow comprising a riser having an upper end and a lower end, upper and lower limbs each having an inboard end affixed respectively to the upper and lower ends of said riser, a bowstring connecting outboard ends of said upper and lower limbs, and synchronizing means for ensuring equal flexing of said upper and lower limbs upon draw and release of said bowstring;
- each of said upper and lower limbs includinga spring limb member having an inboard end affixed to the respective end of said riser, and an outboard end;
a cam pulley pivotally mounted on the outboard end of the respective spring limb member;
a rigid limb member having an inboard end fixed to said cam pulley and an outboard end to which said bowstring is attached;
a flexible inextensible cable extending from the respective end of said riser passing over a periphery of said cam pulley with an end thereof attached to said cam pulley; and
a link member coupled between a point fixed with respect to said cam pulley and said synchronizing means to move said synchronizing means with movement of said cam pulley.
1 Assignment
0 Petitions
Accused Products
Abstract
A compound archery bow has limbs on upper and lower ends of a medial riser and a bowstring extends between outer ends of the limbs. A resilient power limb portion is cantilevered in the end of the riser. A rigid outer limb portion is affixed into a cam pulley that pivots on the free end of the power limb. Synchronizing pulleys disposed at ends of the riser are connected by a synchronizing cable. A cam cable extends from the respective end of the riser and rides in a cam groove on the cam pulley, with the cam cable being reeved in the pulley. A link member is coupled from a fixed point with respect to the cam pulley to the associated synchronizing wheel. The link member can be a rigid connecting rod or can be a reflex cable.
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Citations
8 Claims
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1. An archery bow comprising a riser having an upper end and a lower end, upper and lower limbs each having an inboard end affixed respectively to the upper and lower ends of said riser, a bowstring connecting outboard ends of said upper and lower limbs, and synchronizing means for ensuring equal flexing of said upper and lower limbs upon draw and release of said bowstring;
- each of said upper and lower limbs including
a spring limb member having an inboard end affixed to the respective end of said riser, and an outboard end; a cam pulley pivotally mounted on the outboard end of the respective spring limb member; a rigid limb member having an inboard end fixed to said cam pulley and an outboard end to which said bowstring is attached; a flexible inextensible cable extending from the respective end of said riser passing over a periphery of said cam pulley with an end thereof attached to said cam pulley; and a link member coupled between a point fixed with respect to said cam pulley and said synchronizing means to move said synchronizing means with movement of said cam pulley. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- each of said upper and lower limbs including
Specification