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US 7,441,555 B1Granted
Synchronized compound archery bow
AssigneeLarson Archery Company
InventorMarlow W. Larson
Life of this patent
Estimating the term…
Abstract
A rigging structure for a compound archery bow includes first and second pulley assemblies, pivotally mounted on axles at tips of corresponding first and second limbs of a compound bow and interconnected by cables. Each pulley assembly includes a dynamic synchronizing component, and the rigging preferably also includes means for avoiding the usual leaning moment imposed upon the pulley assemblies by the cables of conventional riggings.
Claims20
Rigging for a compound archery bow comprising:
- first and second pulley assemblies, mounted to pivot on respective axles at tips of corresponding first and second limbs of a compound bow;
- each assembly including:
- a string pulley component with a non-circular peripheral string groove;
- a cable pulley component with a non-circular peripheral cable take-up groove;
- and
- a dynamic synchronizing component;
- a bowstring with opposite ends connected to said first and second pulley assemblies such that, at rest condition of the bow, the peripheral string grooves are substantially occupied by wrapped bowstring;
- a first cable segment, extending from the entry of the peripheral cable take-up groove of said first pulley assembly to the dynamic synchronizing component of said second pulley assembly;
- and
- a second cable segment, extending from the entry of the peripheral cable take-up groove of said second pulley assembly to the dynamic synchronizing component of said first pulley assembly;
- said first and second pulley assemblies being structured and arranged such that as said bowstring is pulled from its said rest position towards its drawn position, respective first ends of said first and second cable segments wrap onto the peripheral cable take-up grooves of said first and second pulley assemblies, respectively, and respective second ends of said first and second cable segments operably interact with the dynamic synchronizing components of said second and first pulley assemblies, respectively.
8 more elements
Rigging for a compound archery bow comprising:
- first and second pulley assemblies, mounted to pivot on respective axles at tips of corresponding first and second limbs of a compound bow;
- each assembly including:
- a string pulley component with a peripheral string groove;
- a cable pulley component with a peripheral cable take-up groove;
- and
- a dynamic synchronizing component comprising;
- a first spooling surface, and
- a second spooling surface,
- said first and second spooling surfaces being positioned at opposite sides of said pulley assembly;
- a bowstring with opposite ends connected to said first and second pulley assemblies such that, at rest condition of the bow, the peripheral string grooves are substantially occupied by wrapped bowstring;
- a first cable segment, extending from the entry of the peripheral cable take-up groove of said first assembly, through a Y harness arrangement, to said first and second spooling surfaces of the synchronizing component of said second pulley assembly;
- and
- a second cable segment, extending from the entry of the peripheral cable take-up groove of said second assembly, through a Y harness arrangement, to said first and second spooling surfaces of the synchronizing component of said first pulley assembly;
- said first and second pulley assemblies being structured and arranged such that as said bowstring is pulled from its said rest position towards its drawn position, respective first ends of said first and second cable segments wrap onto the peripheral cable take-up grooves of said first and second pulley assemblies, respectively, and respective second ends of said first and second cable segments operably interact with the dynamic synchronizing components of said second and first pulley assemblies, respectively.
11 more elements
Rigging for a compound archery bow comprising:
- first and second pulley assemblies, mounted to pivot on respective axles at tips of corresponding first and second limbs of a compound bow;
- each assembly including:
- a string pulley component with a non-circular peripheral string groove;
- a cable pulley component with a non-circular peripheral cable take-up groove;
- and
- a dynamic synchronizing component;
- a bowstring with opposite ends connected to said first and second pulley assemblies such that, at rest condition of the bow, the peripheral string grooves are substantially occupied by wrapped bowstring;
- a first cable segment, extending from the entry of the peripheral cable take-up groove of said first pulley assembly to the synchronizing component of said second pulley assembly;
- and
- a second cable segment, extending from the entry of the peripheral cable take-up groove of said second assembly to the synchronizing component of said first pulley assembly;
- said first and second pulley assemblies being structured and arranged such that as said bowstring is pulled from its said rest position towards its drawn position, respective first ends of said first and second cable segments wrap onto the peripheral cable take-up grooves of said first and second pulley assemblies, respectively, and respective second ends of said first and second cable segments are adjusted in length by operation of the dynamic synchronizing components of said second and first pulley assemblies, respectively;
- and
- stabilization means for distributing at least half of the force applied by said second ends of said first and second cable segments to the sides of the respective pulley assemblies opposite said string grooves from said cable take-up grooves.
10 more elements
Dependencies are inferred from the claim text.