Eccentric power cable let-out mechanism for a compound archery bow
First Claim
1. A compound archery bow comprising:
- a substantially rigid riser;
a first resilient bow limb extending from a first end portion of the riser;
a second resilient bow limb extending from a second end portion of the riser;
a first pulley member connected to the first bow limb and rotatable relative to the first bow limb around a first rotation axis, which first pulley member includes a first draw cable journal and a power cable take-up mechanism;
a second pulley member connected to the second bow limb and rotatable relative to the second bow limb around a second rotation axis, which second pulley member includes a second draw cable journal and a power cable let-out mechanism;
a draw cable engaged with the first and second draw cable journals and arranged to rotate the first and second pulley members as the bow is drawn and the draw cable is let out from the first and second draw cable journals; and
a power cable (i) engaged to be taken up by the power cable take-up mechanism as the bow is drawn and the first pulley member rotates and (ii) engaged to be let out by the power cable let-out mechanism as the bow is drawn and the second pulley member rotates,wherein;
the power cable let-out mechanism comprises paired let-out members disposed on opposite sides of the second bow limb; and
the power cable is engaged with the power cable let-out mechanism in a split cable arrangement or a yoke arrangement engaged with the paired let-out members on opposite sides of the second bow limb.
8 Assignments
0 Petitions
Accused Products
Abstract
A compound archery bow comprises a riser and two limbs extending therefrom; first and second pulley members on the corresponding limbs; a draw cable, and a power cable. The pulley members include corresponding draw cable journals, and the draw cable is engaged to be let out from them and to rotate the pulley members as the bow is drawn. The first and second pulley members further include power cable take-up and let-out mechanisms, respectively. The power cable is engaged to be taken up by the power cable take-up mechanism and to be let out by the power cable let-out mechanism as the bow is drawn and the pulley members rotate. The power cable let-out mechanism comprises paired let-out members disposed on opposite sides of the second bow limb, and the power cable is engaged with the let-out members in a split cable arrangement or a yoke arrangement.
55 Citations
36 Claims
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1. A compound archery bow comprising:
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a substantially rigid riser; a first resilient bow limb extending from a first end portion of the riser; a second resilient bow limb extending from a second end portion of the riser; a first pulley member connected to the first bow limb and rotatable relative to the first bow limb around a first rotation axis, which first pulley member includes a first draw cable journal and a power cable take-up mechanism; a second pulley member connected to the second bow limb and rotatable relative to the second bow limb around a second rotation axis, which second pulley member includes a second draw cable journal and a power cable let-out mechanism; a draw cable engaged with the first and second draw cable journals and arranged to rotate the first and second pulley members as the bow is drawn and the draw cable is let out from the first and second draw cable journals; and a power cable (i) engaged to be taken up by the power cable take-up mechanism as the bow is drawn and the first pulley member rotates and (ii) engaged to be let out by the power cable let-out mechanism as the bow is drawn and the second pulley member rotates, wherein; the power cable let-out mechanism comprises paired let-out members disposed on opposite sides of the second bow limb; and the power cable is engaged with the power cable let-out mechanism in a split cable arrangement or a yoke arrangement engaged with the paired let-out members on opposite sides of the second bow limb. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pulley member for a compound archery bow, the pulley member comprising:
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an axle arranged to rotatably connect the pulley member to a bow limb of a compound archery bow, which axle substantially defines a rotation axis of the pulley member relative to the bow limb; a draw cable journal non-rotatably mounted on the axle and arranged to let out a draw cable as the bow is drawn and the pulley member rotates about the rotation axis; a power cable take-up mechanism arranged to take up a first power cable as the bow is drawn and the pulley member rotates about the rotation axis; and a power cable let-out mechanism for letting out a second power cable as the bow is drawn and the pulley member rotates about the rotation axis, wherein; the power cable let-out mechanism comprises paired let-out members positioned on the axle so as to be disposed on opposite sides of the bow limb; and the power cable let-out mechanism is arranged so as to engage the second power cable in a split cable arrangement or a yoke arrangement engaged with the paired let-out members on opposite sides of the second bow limb. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus comprising a first pulley member and a second pulley member, wherein:
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the first pulley member comprises (i) a first axle arranged to rotatably connect the first pulley member to a first bow limb of a compound archery bow, which first axle substantially defines a first rotation axis relative to the first bow limb, (ii) a first draw cable journal non-rotatably mounted on the first axle and arranged to let out a draw cable as the bow is drawn and the first pulley member rotates about the first rotation axis, and (iii) a power cable take-up mechanism arranged to take up a power cable as the bow is drawn and the first pulley member rotates about the first rotation axis; the second pulley member comprises (i) a second axle arranged to rotatably connect the second pulley member to a second bow limb of the compound archery bow, which second axle substantially defines a second rotation axis relative to the second bow limb, (ii) a second draw cable journal non-rotatably mounted on the second axle and arranged to let out the draw cable as the bow is drawn and the second pulley member rotates about the second rotation axis, and (iii) a power cable let-out mechanism for letting out the power cable as the bow is drawn and the second pulley member rotates about the second rotation axis; the power cable let-out mechanism comprises paired let-out members disposed on opposite sides of the second bow limb; and the power cable let-out mechanism is arranged so as to engage the first power cable in a split cable arrangement or a yoke arrangement engaged with the paired let-out members on opposite sides of the second bow limb. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification