Limb mounting system

• US 8,408,192 B2
• Filed: 10/28/2011
• Issued: 04/02/2013
• Est. Priority Date: 11/16/2006
• Status: Active Grant

• Current Assignee: MCP IP, LLC
• Original Assignee: MCP IP, LLC
• Inventors: McPherson, Mathew A.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US13/284,615
• Publication Number:
  US 20120042864A1
• Time in Patent Office: 522 Days
• Field of Search: 124/23.1, 124/25.6, 124/86, 124/88
• US Class Current: 124/23.1
• CPC Class Codes: F41B 5/10 Compound bows compound crossbows F41B5/123

Abstract

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.

Claims

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.