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US 11,598,601 B2Granted
Archery bow cam and related method of use
AssigneeGrace Engineering Corp.
InventorScott C. Prater
Life of this patent
Estimating the term…
Abstract
An archery bow is provided including a cam rotatable about an axis, a bowstring disposed in a bowstring track of the cam having a plane of rotation perpendicular to the axis, and a power cable that is displaced along the axis toward the plane of rotation to concentrate a force of the power cable near a force of the bowstring along the axis to inhibit twisting of a limb, when the bow is drawn. A related method of use is provided.
Claims20
An archery bow comprising:
- a riser;
- a first limb and a second limb joined with the riser;
- a first cam rotatably mounted to the first limb about a first axis, the first cam comprising:
- a first bowstring track having a first plane of rotation perpendicular to the first axis;
- a first power cable take up track extending in a direction laterally away at a first angle from the first plane of rotation of the first bowstring track;
- a second cam rotatably mounted to the second limb about a second axis, the second cam comprising:
- a second bowstring track having a second plane of rotation perpendicular to the second axis;
- a second power cable take up track extending in a direction laterally away at a second angle from the second plane of rotation of the second bowstring track;
- a bowstring received in first and second bowstring tracks and moveable in a bowstring plane, the bowstring configured to unwind out from the first and second bowstring tracks when the bowstring is drawn;
- a first power cable received in the first power cable take up track of the first cam;
- and
- a second power cable received in the second power cable take-up track of the second cam,
- wherein the bowstring is distal and separated from the first power cable and the second power cable,
- wherein as the archery bow is drawn the first power cable is taken up in the first power cable take up track and displaced along the first axis toward the first plane of rotation of the first bowstring track to concentrate a first force of the first power cable near a first force of the bowstring along the first axis to inhibit twisting of the first limb,
- wherein as the archery bow is drawn the second power cable is taken up in the second power cable take up track and displaced along the second axis toward the second plane of rotation of the second bowstring track to concentrate a second force of the second power cable near a second force of the bowstring along the second axis to inhibit twisting of the second limb.
12 more elements
An archery bow comprising:
- a first limb and a second limb;
- a first cam rotatably mounted to the first limb about a first axis, the first cam comprising:
- a first bowstring track having a first plane of rotation perpendicular to the first axis;
- a first power cable take up track extending in a direction angled laterally away from the first plane of rotation of the first bowstring track;
- a bowstring received in a first bowstring track and moveable in a bowstring plane, the bowstring configured to unwind out from the first bowstring track when the bowstring is drawn;
- a first power cable received in the first power cable take up track of the first cam;
- wherein as the archery bow is drawn the first power cable is taken up in the first power cable take up track and displaced along the first axis toward the first plane of rotation of the first bowstring track to move a first force of the first power cable near a first force of the bowstring along the first axis to inhibit twisting of the first limb,
- wherein the bowstring is distal and separated from the first power cable.
5 more elements
Dependencies are inferred from the claim text.