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US 12,747,928 B2Granted
Bow with variable draw weights
AssigneePrecision Shooting Equipment, Inc.
InventorsKevin L. Hansen, David Alan McNealy
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a compound bow having limbs attached to a riser by limb attachment members. The limb attachment members can be mounted to the riser at different draw weight positions to alter a draw weight of the bow. Certain examples allow different ranges of draw weights for each draw weight position.
Claims30
A bow comprising:
- a riser having an upper end and a lower end, the riser also including a front side and rear side, the riser further including a left side and a right side;
- upper and lower limbs respectively secured to the upper and lower ends of the riser;
- cams for engaging a bow string, the cams being mounted to the upper and lower limbs;
- and
- limb attachment members for attaching the upper and lower limbs to the riser, the limb attachment members each being mountable to the riser in a first draw weight position and a second draw weight position, wherein the limb attachment members are pivoted and translated relative to the riser when moved between the first and second draw weight positions, and wherein the bow has a larger draw weight when the limb attachment members are in the first draw weight position as compared to when the limb attachment members are in the second draw weight position.
2 more elements
A bow comprising:
- a riser having an upper end and a lower end, the riser also including a front side and rear side, the riser further including a left side and a right side;
- upper and lower limbs respectively secured to the upper and lower ends of the riser;
- cams for engaging a bow string, the cams being mounted to the upper and lower limbs;
- pivotal limb attachment members for attaching the upper and lower limbs to the riser, the pivotal limb attachment members being pivotally moveable relative to the riser about laterally oriented pivot axes;
- the pivot axes each being positionable at a first pivot axis location relative to the riser and a second pivot axis location relative to the riser, the first and second pivot axis locations for each pivot axis being spaced-apart from each other;
- and
- limb bolts for setting pivotal positions of the pivotal limb attachment members relative to the riser about the pivot axes, wherein when the pivot axes are at the first pivot axis locations the limb bolts can be used to adjust a draw weight of the bow across a first range of draw weights, and wherein when the pivot axes are at the second pivot axis locations the limb bolts can be used to adjust the draw weight of the bow across a second range of draw weights different than the first range of draw weights.
4 more elements
A bow comprising:
- a riser having an upper end and a lower end, the riser also including a front side and rear side, the riser further including a left side and a right side;
- upper and lower limbs having base ends and free ends, the base ends of the upper limbs attaching to the upper end of the riser and the base ends of the lower limbs attaching to the lower end of the riser;
- cams for engaging a bow string, the cams being mounted at the free ends of the upper and lower limbs;
- limb pockets that mount to the upper and lower ends the riser for attaching the base ends of the upper and lower limbs to the riser;
- laterally oriented pivot axles for allowing pivotal movement of the limb pockets relative to the riser to adjust a draw weight of the bow;
- limb bolts for setting pivotal positions of the limb pockets relative to the riser about pivot axes defined by the pivot axles to set a draw weight of the bow;
- the upper and lower ends of the riser defining receivers;
- and
- draw weight range adjustment members that mount in the receivers, the draw weight range adjustment members defining pivot axle openings for receiving the pivot axles, the draw weight range adjustment members being mountable in first and second orientations within the receivers, wherein the pivot axes are each at a first position relative to the riser when the draw weight range adjustment members are each mounted in the first orientation within the receivers, wherein the pivot axes are each at a second position relative to the riser when the draw weight range adjustment members are each mounted in the second orientation within the receivers and wherein the first and second positions are offset from each other such that when the draw weight range adjustment members are in the first orientation the limb bolts can be used to adjust the draw weight across a first range of draw weights, and when the draw weight range adjustment members are in the second orientation the limb bolts can be used to adjust the draw weight across a second range of draw weights different than the first range of draw weights.
6 more elements
A method for selecting between first and second draw weight ranges of a bow, the first draw weight range corresponding to a pivot axis of a limb attachment member of the bow being in a first position relative to a riser of the bow, the second draw weight range corresponding to the pivot axis of the limb attachment member of the bow being in a second position relative to a riser of the bow, the second position being spaced from the first position, the bow including at least one draw weight adjustment member defining a pivot axle opening for receiving a pivot axle defining the pivot axis of the limb attachment member, the method comprising:
- selecting the draw weight adjustment member corresponding to a selected one of the first and second positions from a plurality of draw weight members for installation in a receiver of the riser or selecting an orientation within the receiver of the draw weight adjustment member corresponding to the selected one of the first and second positions from a plurality of orientations of the draw weight adjustment member within the receiver.
Dependencies are inferred from the claim text.