| 摘要 |
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 <DEL-S DATE="20020212" ID="DEL-S-00001">can<DEL-E ID="DEL-S-00001"> <INS-S DATE="20020212" ID="INS-S-00001">cam <INS-E ID="INS-S-00001">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 <DEL-S DATE="20020212" ID="DEL-S-00002">can<DEL-E ID="DEL-S-00002"> <INS-S DATE="20020212" ID="INS-S-00002">cam <INS-E ID="INS-S-00002">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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