Archery bow limb construction

Patent metadata

Field	Value
Publication number	US-12313371-B2
Application number	US-202318114048-A
Country	US
Kind code	B2
Filing date	Feb 24, 2023
Priority date	Feb 25, 2022
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

In some embodiments, an archery bow limb assembly comprises a first limb, a second limb and a spacer. The spacer contacts the first limb and the second limb. The first limb comprises a limb material. The spacer comprises a spacer material comprising a higher clastic modulus than the limb material. A width of the spacer is less than a width of the first limb.

First claim

The invention claimed is:

1. An archery bow limb assembly comprising:
a first limb, a second limb and a spacer, the first limb comprising a first tension surface, a first compression surface and a first side surface, the second limb comprising a second tension surface, a second compression surface and a second side surface, the spacer contacting the first side surface and the second side surface, the first limb comprising a limb material, the spacer comprising a spacer material comprising a lower elastic modulus than the limb material, a width of the spacer being less than a width of the first limb, the spacer comprising a body portion and a flange, the flange comprising a greater width than the body portion, the flange contacting the first tension surface, the flange contacting the second tension surface.

2. The archery bow limb assembly of claim 1 , the first limb comprising a first engagement region arranged to be supported by a limb cup, the spacer contacting the first engagement region.

3. The archery bow limb assembly of claim 2 , the first limb comprising a working length portion, the spacer contacting the working length portion.

4. The archery bow limb assembly of claim 1 , the first limb comprising a second engagement region arranged to support an axle or bowstring, the spacer contacting the second engagement region.

5. The archery bow limb assembly of claim 1 , the flange contacting a first end surface of the first limb.

6. The archery bow limb assembly of claim 5 , the flange contacting a second end surface of the first limb.

7. The archery bow limb assembly of claim 1 , the flange contacting the first compression surface of the first limb, the flange contacting the second compression surface of the second limb.

8. The archery bow limb assembly of claim 1 , wherein the spacer extends an entire length of the first limb.

9. The archery bow limb assembly of claim 1 , comprising a bearing accessory attached to the first limb and the second limb.

10. The archery bow limb assembly of claim 1 , comprising a limb cup arranged to support the first limb and the second limb, the limb cup comprising a groove, a portion of the spacer oriented in the groove.

11. The archery bow limb assembly of claim 1 , the first limb comprising a different width from the second limb.

12. The archery bow limb assembly of claim 1 , the limb material comprising a composite material comprising reinforcing fibers, the spacer comprising an elastomeric material.

13. An archery bow limb assembly comprising:
a first limb, a second limb and a spacer, the spacer contacting the first limb and the second limb, the first limb comprising a limb material, the spacer comprising a spacer material comprising a lower elastic modulus than the limb material, a width of the spacer being less than a width of the first limb;
the first limb comprising an aperture arranged to receive an axle, the spacer comprising an aperture arranged to receive the axle.

14. An archery bow limb assembly comprising:
a first limb, a second limb and a spacer, the spacer contacting the first limb and the second limb, the first limb comprising a limb material, the spacer comprising a spacer material comprising a lower elastic modulus than the limb material, a width of the spacer being less than a width of the first limb;
a sidewall of the first limb comprising a first lateral recess, the spacer comprising a protrusion oriented in the first lateral recess.

15. The archery bow limb assembly of claim 14 , a sidewall of the second limb comprising a second lateral recess, the protrusion comprising a first side and a second side, the first side oriented in the first lateral recess, the second side oriented in the second lateral recess.

16. An archery bow limb assembly comprising:
a first limb, a second limb and a spacer, the first limb comprising a first tension surface, a first compression surface and a first side surface, the second limb comprising a second tension surface, a second compression surface and a second side surface, the spacer contacting the first side surface and the second side surface, the first limb comprising a limb material, the spacer comprising a spacer material comprising a lower elastic modulus than the limb material, a width of the spacer being less than a width of the first limb;
a bearing accessory attached to the first limb and the second limb, the bearing accessory comprising a groove, a portion of the spacer oriented in the groove.

Assignees

• Mcp Ip Llc

Inventors

• Mcpherson Mathew A

Classifications

• F41B5/10

  Compound bows {(compound crossbows F41B5/123)} · CPC title

• F41B5/14

  Details of bows; Accessories for arc shooting (sighting devices for bows F41G1/467) · CPC title

• F41B5/1426 Primary

  Bow stabilisers or vibration dampers · CPC title

• F41B5/0052 Primary

  Limbs · CPC title