Center-bearing limbs for an archery bow
First Claim
1. An archery bow comprising:
- an elongated, substantially rigid riser having a central portion and first and second end portions extending from opposite ends of the central portion, each of the end portions including a corresponding forward pivotable connection point and rearward bearing point, said connection and bearing points being substantially rigidly positioned on the corresponding end portion;
a first bearing member positioned on the first riser end portion at its rearward bearing point;
a first elongated, resilient bow limb having a riser pivotable connection point and a pulley pivotable connection point, the first bow limb being (i) pivotably connected at its riser connection point to the first riser end portion at its forward pivotable connection point, (ii) positioned against the first bearing member at a point along the first bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, and (iii) arranged at its pulley pivotable connection point to receive a pulley member pivotably connected thereto;
a second bearing member positioned on the second riser end portion at its rearward bearing point; and
a second elongated, resilient bow limb having a riser pivotable connection point and a pulley pivotable connection point, the second bow limb being (i) pivotably connected at its riser connection point to the second riser end portion at its forward pivotable connection point, (ii) positioned against the second bearing member at a point along the second bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, and (iii) arranged at its pulley pivotable connection point to receive a pulley member pivotably connected thereto,wherein;
each rearward bearing point includes a concave bearing surface; and
each bearing member includes (i) a convex bearing surface engaged with the concave bearing surface of the corresponding rearward bearing point, and (ii) a limb-bearing surface engaged with a mating area of the corresponding bow limb.
6 Assignments
0 Petitions
Accused Products
Abstract
An archery bow comprises a riser and a pair of bow limbs. The riser has a central portion and first and second end portions, each including a corresponding forward pivotable connection point and rearward bearing point substantially rigidly positioned on the corresponding end portion. A bearing member is positioned at each corresponding rearward bearing point. Each bow limb has a riser connection point and a pulley connection point, and is (i) pivotably connected at its riser connection point to the corresponding riser end portion at its pivotable connection point, (ii) positioned against the corresponding bearing member at a point along the bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, and (iii) arranged at its pulley connection point to receive a pulley member pivotably connected thereto.
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Citations
18 Claims
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1. An archery bow comprising:
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an elongated, substantially rigid riser having a central portion and first and second end portions extending from opposite ends of the central portion, each of the end portions including a corresponding forward pivotable connection point and rearward bearing point, said connection and bearing points being substantially rigidly positioned on the corresponding end portion; a first bearing member positioned on the first riser end portion at its rearward bearing point; a first elongated, resilient bow limb having a riser pivotable connection point and a pulley pivotable connection point, the first bow limb being (i) pivotably connected at its riser connection point to the first riser end portion at its forward pivotable connection point, (ii) positioned against the first bearing member at a point along the first bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, and (iii) arranged at its pulley pivotable connection point to receive a pulley member pivotably connected thereto; a second bearing member positioned on the second riser end portion at its rearward bearing point; and a second elongated, resilient bow limb having a riser pivotable connection point and a pulley pivotable connection point, the second bow limb being (i) pivotably connected at its riser connection point to the second riser end portion at its forward pivotable connection point, (ii) positioned against the second bearing member at a point along the second bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, and (iii) arranged at its pulley pivotable connection point to receive a pulley member pivotably connected thereto, wherein; each rearward bearing point includes a concave bearing surface; and each bearing member includes (i) a convex bearing surface engaged with the concave bearing surface of the corresponding rearward bearing point, and (ii) a limb-bearing surface engaged with a mating area of the corresponding bow limb. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for making an archery bow comprising:
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providing an elongated, substantially rigid riser having a central portion and first and second end portions extending from opposite ends of the central portion, each of the end portions including a corresponding forward pivotable connection point and a rearward bearing point, said connection and bearing points being substantially rigidly positioned on the corresponding end portion; pivotably connecting a first elongated bow limb at a riser pivotable connection point thereof to the first riser end portion at its forward pivotable connection point, the first bow limb being arranged at a pulley pivotable connection point thereof to receive a pulley member pivotably connected thereto; pivotably connecting a second elongated bow limb at a riser pivotable connection point thereof to the second riser end portion at its forward pivotable connection point, the second bow limb being arranged at a pulley pivotable connection point thereof to receive a pulley member pivotably connected thereto; positioning a first bearing member on the first riser end portion at its rearward bearing point and positioning the first bow limb against the first bearing member at a point along the first bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points; and positioning a second bearing member on the second riser end portion at its rearward bearing point and positioning the second bow limb against the second bearing member at a point along the second bow limb between its riser and pulley connection points that is displaced from the riser connection point by at least one third of the distance between the riser and pulley connection points, wherein; each rearward bearing point includes a concave bearing surface; and each bearing member includes (i) a convex bearing surface engaged with the concave bearing surface of the corresponding rearward bearing point, and (ii) a limb-bearing surface engaged with a mating area of the corresponding bow limb. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification