Compound archery bow

A compound archery bow comprising:

• a central handle having opposing ends;
• a pair of flexible power limbs extending outwardly from the handle opposing ends, each of the limbs having an inner end connected with the handle and an outer free end;
• an eccentric wheel mounted at each outer free end for pivotal movement about a respective eccentric wheel pivot axis between a rest draw angular position and a full draw angular position, the respective pivot axes being separated from one another by a distance C at the rest draw angular position;
• each of said eccentric wheels having a bowstring portion with a peripheral bowstring track formed therein for receiving a section of a bowstring, the peripheral bowstring track having a progressively increasing moment arm radius relative to the respective pivot axis from a rest draw segment to a full draw segment;
• each eccentric wheel having a power cable portion with a peripheral power cable track formed therein for receiving a section of a power cable, the power cable portion extending from a rest draw segment to a full draw segment;
• and
• wherein the eccentric wheel full draw segments of the bowstring portions when in the rest draw angular position are positioned forwardly over the respective bow limbs and are separated from one another by a distance B, the distance B being less than the distance C thereby positioning the respective full draw segments in the rest draw angular position both forward over the bow limbs and in overcenter positions, the angular movement of the wheel between the rest angular position and the full draw angular position being less than or equal to 150 degrees.

A compound archery bow comprising:

• a central handle having opposing ends;
• a pair of flexible power limbs extending outwardly from the handle opposing ends, each of the limbs having an inner end connected with the handle and an outer free end;
• an eccentric wheel mounted at each outer free end for pivotal movement about a respective eccentric wheel pivot axis between a rest draw angular position and a full draw angular position, the respective pivot axes being separated from one another by a distance C at the rest draw angular position;
• each of said eccentric wheels having a bowstring portion with a peripheral bowstring track formed therein for receiving a section of a bowstring, the peripheral bowstring track having a progressively increasing moment arm radius relative to the respective pivot axis from a rest draw segment to a full draw segment;
• each eccentric wheel having a power cable portion with a peripheral power cable track formed therein for receiving a section of a power cable, the power cable portion extending from a rest draw segment to a full draw segment;
• and
• wherein the eccentric wheel full draw segments of the bowstring portions when in the rest draw angular position are positioned forwardly over the respective bow limbs and are separated from one another by a distance B, the distance B being less than the distance C thereby positioning the respective full draw segments in the rest draw angular position both forward over the bow limbs and in overcenter positions;
• the full draw segment of the bowstring portion of the eccentric wheel having a moment arm radius N from the pivot axis;
• the power cable portion of the eccentric wheel extends from a rest draw segment to a full draw segment and has a maximum moment arm radius P;
• and
• N is at least twice as great as P.

A compound archery bow comprising:

• a central handle having opposing ends;
• a pair of flexible power limbs extending outwardly from the handle opposing ends, each of the limbs having an inner end connected with the handle and an outer free end;
• an eccentric wheel mounted at each outer free end for pivotal movement about a respective eccentric wheel pivot axis between a rest draw angular position and a full draw angular position, the respective pivot axes being separated from one another by a distance C' at the full draw angular position;
• each of said eccentric wheels having a bowstring portion with a peripheral bowstring track formed therein for receiving a section of a bowstring, the peripheral bowstring track having a progressively increasing moment arm radius relative to the respective pivot axis from a rest draw segment to a full draw segment;
• each eccentric wheel having a power cable portion with a peripheral power cable track formed therein for receiving a section of a power cable, the power cable portion extending from a rest draw segment to a full draw segment;
• and
• wherein the eccentric wheel full draw segments of the bowstring portions when in the full draw angular position are positioned rearwardly of the respective bow limbs and are separated from one another by a distance D, the distance D being greater than the distance C' thereby extending the effective lengths of the limbs at the full draw angular position and reducing bowstring pinch angle, the angular movement of the wheel between the rest angular position and the full draw angular position being less than or equal to 150 degrees.

A compound archery bow comprising:

• a central handle having opposing ends;
• a pair of flexible power limbs extending outwardly from the handle opposing ends, each of the limbs having an inner end connected with the handle and an outer free end;
• an eccentric wheel mounted at each outer free end for pivotal movement about a respective eccentric wheel pivot axis between a rest draw angular position and a full draw angular position, the respective pivot axes being separated from one another by a distance C' at the full draw angular position;
• each of said eccentric wheels having a bowstring portion with a peripheral bowstring track formed therein for receiving a section of a bowstring, the peripheral bowstring track having a progressively increasing moment arm radius relative to the respective pivot axis from a rest draw segment to a full draw segment;
• each eccentric wheel having a power cable portion with a peripheral power cable track formed therein for receiving a section of a power cable, the power cable portion extending from a rest draw segment to a full draw segment;
• and
• wherein the eccentric wheel full draw segments of the bowstring portions when in the full draw angular position are positioned rearwardly of the respective bow limbs and are separated from one another by a distance D, the distance D being greater than the distance C' thereby extending the effective lengths of the limbs at the full draw angular position and reducing bowstring pinch angle;
• the full draw segment of the bowstring portion of the eccentric wheel having a moment arm radius N from the pivot axis;
• the power cable portion of the eccentric wheel extends from a rest draw segment to a full draw segment and has a maximum moment arm radius P;
• and
• N is at least twice as great as P.