Limb mounting system
View Patent ↗An apparatus and method for reducing stress in a bow limb of an archery bow connected to a handle/riser of the bow by allowing a butt end of the bow limb connected to a forward end of the handle/riser by a limb bolt to flex forwardly when the bow is drawn and/or allowing the bow to flex rearwardly at the rearward end of the handle/riser when the bow is drawn.
1. An archery bow comprising:
a riser;
a limb comprising an aperture, the aperture defined by a sidewall having an arcuate portion;
a limb bolt attaching a butt end of said limb to said riser; and
a limb cap positioned between said limb bolt and said limb, said limb cap comprising a flange that extends into said aperture, wherein said flange comprises an arcuate shape that abuts the arcuate portion of the limb.
2. The archery bow of claim 1 , wherein said limb sidewall further comprises a second arcuate portion and said limb cap further comprises a second arcuate shape that abuts the second arcuate portion of the limb.
3. The archery bow of claim 1 , wherein said flange forms a closed perimeter that surrounds said limb bolt.
4. The archery bow of claim 1 , wherein said flange contacts an internal sidewall of said limb.
5. The archery bow of claim 1 , wherein said flange comprises a first flange, said limb cap further comprising a second flange arranged to abut an external sidewall of said limb.
6. The archery bow of claim 5 , wherein said first flange comprises a curved portion and said second flange comprises a curved portion.
7. The archery bow of claim 6 , wherein the curved portion of the first flange and the curved portion of the second flange have a common center of rotation.
8. The archery bow of claim 6 , wherein at least one of said curved portions is semi-circular.
9. The archery bow of claim 6 , further comprising a fulcrum member positioned between said limb and said riser, said fulcrum member offset from said limb bolt along a length of said limb.
10. The archery bow of claim 9 , wherein the fulcrum comprises a first pair of sidewalls arranged to abut the riser.
11. The archery bow of claim 10 , wherein the fulcrum further comprises a second pair of sidewalls arranged to abut the limb.
12. The archery bow of claim 11 , wherein a spacing between the first pair of sidewalls is different from a spacing between the second pair of sidewalls.
13. The archery bow of claim 1 , said limb cap further comprising a spheroidal surface.
14. The archery bow of claim 13 , further comprising a washer positioned between said limb cap and said limb bolt, said washer comprising a spheroidal surface.
15. The archery bow of claim 1 , wherein a curved washer is positioned between a recess in said limb cap and an underside of a head of the limb bolt.
16. An archery bow comprising:
a riser;
a limb;
a limb bolt attaching a butt end of said limb to said riser; and
a limb cap positioned between said limb bolt and said limb, said limb cap comprising a flange that abuts a sidewall of said limb, the flange comprising an arcuate shape.
17. The archery bow of claim 16 , said limb cap comprising a spheroidal shape.
18. The archery bow of claim 16 , further comprising a fulcrum member positioned between said limb and said riser, said fulcrum member offset from said limb bolt along a length of said limb, said fulcrum member comprising a first pair of sidewalls arranged to abut the riser.
19. The archery bow of claim 18 , wherein the fulcrum member further comprises a second pair of sidewalls arranged to abut the limb.
20. The archery bow of claim 19 ,wherein a spacing between the first pair of sidewalls is different from a spacing between the second pair of sidewalls.
21. The archery bow of claim 16 , wherein said limb cap further comprises an inner flange extending into an aperture of said limb.