Single-cam compound archery bow
First Claim
1. A compound archery bow that comprises:
- a bow handle having projecting limbs,first pulley means including means mounting said first pulley means for rotation about a first axis at an end of one of said limbs,second pulley means including means mounting said second pulley means for rotation about a second axis at an end of the other of said limbs, andbow cable means trained around and extending between said first and second pulley means and anchored to at least one of said limbs for drawing said bow,at least one of said pulley means including a draw length module mounted and adjustably positionable thereon for varying drawlength of said bow,said module having a groove into which said bow cable means wraps as said bow is drawn and draw stop means on said module aligned with said groove to prevent wrap of said bow cable means into said groove and thereby form a draw stop on said at least one pulley means, position of said draw stop on said at least one pulley means being adjusted conjointly with said module.
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Accused Products
Abstract
A single-cam compound archery bow that includes a bow handle from which bow limbs project, a control wheel rotatably mounted on one end of one limb and a power can rotatably mounted at an opposing end of the other limb. A power cable segment is anchored at one end to the one limb and at a second end to the power can at a position to wrap into and unwrap from a power cable groove on the power cam. A bow string cable segment is anchored to the control wheel and to the power cam at positions to wrap into and unwrap from first and second bow string take-up grooves on the control wheel and power cam respectively. The bow string cable segment has a nock point disposed between the spaced limb ends. A control cable segment is anchored at one end to the control wheel at a position to wrap into and unwrap from a control groove on the control wheel, and is anchored at an opposing end to the power cam. As the bow string cable segment is drawn away from the handle, the bow string cable segment unwraps equally from the control wheel and power cam, wraps the power cable segment into the power cable groove on the power cam so as to draw the bow limb ends together up to a power let-off point at the power cable groove, and wraps the control cable segment into the control groove on the control wheel. Length of the power cable groove on the power cam, and position of the power let-off point on the power cam, are adjustable while maintaining a fixed separation between the power let-off point and the control cable anchor on the power cam, so that the nock point travels in a straight line as the bow string cable section is drawn and released independent of adjusted length of the power cable groove and position of the power let-off point.
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Citations
59 Claims
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1. A compound archery bow that comprises:
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a bow handle having projecting limbs, first pulley means including means mounting said first pulley means for rotation about a first axis at an end of one of said limbs, second pulley means including means mounting said second pulley means for rotation about a second axis at an end of the other of said limbs, and bow cable means trained around and extending between said first and second pulley means and anchored to at least one of said limbs for drawing said bow, at least one of said pulley means including a draw length module mounted and adjustably positionable thereon for varying drawlength of said bow, said module having a groove into which said bow cable means wraps as said bow is drawn and draw stop means on said module aligned with said groove to prevent wrap of said bow cable means into said groove and thereby form a draw stop on said at least one pulley means, position of said draw stop on said at least one pulley means being adjusted conjointly with said module. - View Dependent Claims (2, 3, 4, 5, 6, 25, 26)
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7. A single cam compound archery bow that comprises:
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a bow handle having projecting limbs, first pulley means including means mounting said first pulley means for rotation about a first axis at an end of one of said limbs, second pulley means including means mounting said second pulley means for rotation about a second axis at an end of the other of said limbs, bow cable means including a first cable segment anchored at one end to said one limb at said first axis and at a second end to said second pulley means, a second cable segment anchored at one end to said second pulley means and extending to said first pulley means, and a third cable segment anchored at one end to said second pulley means and extending to said first pulley means, said third cable segment having a nock point that, when drawn away from said handle, unwraps said third cable segment equally from said first and second pulley means, wraps said second cable segment onto said first pulley means as said third cable segment is unwrapped therefrom, and wraps said first cable segment into a pulley groove on said second pulley means so as to drawn said limbs ends together up to a power let-off point at said pulley groove, and means for adjusting length of said pulley groove on said second pulley means, and thereby adjusting position of said power let-off point on said second pulley means, while maintaining a fixed spacing between said power let-off point and the anchor of said second cable segment to said second pulley means, such that said nock point travels in a straight line as said third cable segment is drawn away from said handle independent of length of said pulley groove between said power let-off point and the anchor of said first cable segment to said second pulley means, said second pulley means including said pulley groove in which said first cable segment wraps and unwraps on said second pulley means, and a bow string take-up groove in which said third cable segment wraps and unwraps on said second pulley means, said second pulley means comprising a base including said mounting means and said take-up groove, a module mounted on said base and including said pulley groove, an anchor for said second cable segment on said module, and means training said second cable segment from said anchor on said module around said axis of said second pulley means and thence toward said first pulley means, said training means comprising a control arm affixed to said module having one end forming said anchor and a second end at said second axis, said control arm having a groove in which said second cable segment wraps and unwraps as said second pulley means rotates. - View Dependent Claims (8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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9. A single cam compound archery bow that comprises:
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a bow handle having projecting limbs, first pulley means including means mounting said first pulley means for rotation about a first axis at an end of one of said limbs, second pulley means including means mounting said second pulley means for rotation about a second axis at an end of the other of said limbs, bow cable means including a first cable segment anchored at one end to said one limb at said first axis and at a second end to said second pulley means, a second cable segment anchored at one end to said second pulley means and extending to said first pulley means, and a third cable segment anchored at one end to said second pulley means and extending to said first pulley means, said third cable segment having a nock point that, when drawn away from said handle, unwraps said third cable segment equally from said first and second pulley means, wraps said second cable segment onto said first pulley means as said third cable segment is unwrapped therefrom, and wraps said first cable segment into a pulley groove on said second pulley means so as to drawn said limbs ends together up to a power let-off point at said pulley groove, and means for adjusting length of said pulley groove on said second pulley means, and thereby adjusting position of said power let-off point on said second pulley means, while maintaining a fixed spacing between said power let-off point and the anchor of said second cable segment to said second pulley means, such that said nock point travels in a straight line as said third cable segment is drawn away from said handle independent of length of said pulley groove between said power let-off point and the anchor of said first cable segment to said second pulley means, said second pulley means including said pulley groove in which said first cable segment wraps and unwraps on said second pulley means, and a bow string take-up groove in which said third cable segment wraps and unwraps on said second pulley means, said second pulley means comprising a base including said mounting means and said take-up groove, a module mounted on said base and including said pulley groove, an anchor for said second cable segment on said module, and stop means aligned with said pulley groove to limit wrap of said first cable segment into said pulley groove and thereby limit draw of said bow. - View Dependent Claims (19, 20)
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43. A single-cam compound bow that comprises:
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a bow handle having projecting limbs, a control wheel rotatably mounted on an end of one of said limbs remote from said handle, said control wheel having a control groove and a first bow string take-up groove, a power cam rotatably mounted on an end of the other of said limbs remote from said handle, said power cam including a second bow string take-up groove and a power cable groove, bow cable means including a power cable segment anchored at one end to said one limb and at a second end to said power cam at a position to wrap into and unwrap from said power cable groove, a bow string cable segment anchored at said control wheel and said power cam at positions to wrap into and unwrap from said first and second bow string take-up grooves respectively, said bow string cable segment having a nock point disposed between said limb ends, and a control cable segment anchored at said control wheel at a position to wrap into and unwrap from said control groove and anchored at said power cam, such that draw of said bow string cable segment away from said handle unwraps said bow string cable segment form said control wheel and said power cam, wraps said power cable segment into said power cable groove so as to draw said limb ends together up to a power let-off point at said pulley groove, and wraps said control cable segment into said control groove on said control wheel, and means for adjusting length of said power cable groove on said power cam, and thereby adjusting position of said power let-off point on said power cam, while maintaining a fixed separation between said power let-off point and said control cable anchor on said power cam, such that said nock point travels in a straight line as said bow string cable segment is drawn independent of length of said power cable groove, said power cam further comprising means training said control cable segment from said anchor on said power cam around the axis of rotation of said power cam on said other limb and thence toward said control wheel, said training means comprising a control arm affixed to said power cam having one end forming said anchor of said control cable segment and a second end at said axis, said control arm having a groove in which said control cable segment wraps and unwraps as said power cam rotates. - View Dependent Claims (45, 46, 50, 57, 58, 59)
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44. A single-cam compound bow that comprises:
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a bow handle having projecting limbs, a control wheel rotatably mounted on an end of one of said limbs remote from said handle, said control wheel having a control groove and a first bow string take-up groove, a power cam rotatably mounted on an end of the other of said limbs remote from said handle, said power cam including a second bow string take-up groove and a power cable groove, bow cable means including a power cable segment anchored at one end to said one limb and at a second end to said power cam at a position to wrap into and unwrap from said power cable groove, a bow string cable segment anchored at said control wheel and said power cam at positions to wrap into and unwrap from said first and second bow string take-up grooves respectively, said bow string cable segment having a nock point disposed between said limb ends, and a control cable segment anchored at said control wheel at a position to wrap into and unwrap from said control groove and anchored at said power cam, such that draw of said bow string cable segment away from said handle unwraps said bow string cable segment form said control wheel and said power cam, wraps said power cable segment into said power cable groove so as to draw said limb ends together up to a power let-off point at said pulley groove, and wraps said control cable segment into said control groove on said control wheel, and means for adjusting length of said power cable groove on said power cam, and thereby adjusting position of said power let-off point on said power cam, while maintaining a fixed separation between said power let-off point and said control cable anchor on said power cam, such that- said nock point travels in a straight line as said bow string cable segment is drawn independent of length of said power cable groove, said power cam including stop means aligned with said power cable groove to limit wrap of said power cable segment into said power cable groove and thereby limit draw of said bow. - View Dependent Claims (47, 48, 51, 52, 53, 54, 55, 56)
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49. A single-cam compound bow that comprises:
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a bow handle having projecting limbs, a control wheel rotatably mounted on an end of one of said limbs remote from said handle, said control wheel having a control groove and a first bow string take-up groove, a power cam rotatably mounted on an end of the other of said limbs remote from said handle, said power cam including a second bow string take-up groove and a power cable groove, bow cable means including a power cable segment anchored at one end to said one limb and at a second end to said power cam at a position to wrap into and unwrap from said power cable groove, a bow string cable segment anchored at said control wheel and said power cam at positions to wrap into and unwrap from said first and second bow string take-up grooves respectively, said bow string cable segment having a nock point disposed between said limb ends, and a control cable segment anchored at said control wheel at a position to wrap into and unwrap from said control groove and anchored at said power cam, such that draw of said bow string cable segment away from said handle unwraps said bow string cable segment form said control wheel and said power cam, wraps said power cable segment into said power cable groove so as to drawing said limb ends together up to a power let-off point at said pulley groove, and wraps said control cable segment into said control groove on said control wheel, and means for adjusting length of said power cable groove on said power cam, and thereby adjusting position of said power let-off point on said power cam, while maintaining a fixed separation between said power let-off point and said control cable anchor on said power cam, such that said nock point travels in a straight line as said bow string cable segment is drawn independent of length of said power cable groove, said power cam comprising a cam base including said second bow string take-up groove, means for anchoring said second end of said power cable, and first means forming a first portion of said power cable groove adjacent to said anchor, said length adjusting means comprising a module having a second portion of said power cable groove, said module being adjustably positionable on said base such that a gap between said first and second portions of said power cable groove formed by adjusting position of said module on said base is disposed between said anchor and said let-off point.
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Specification