Archery Bow Limb Construction

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 elastic modulus than the limb material. A width of the spacer is less than a width of the first limb.

1 . 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 higher elastic modulus than the limb material, a width of the spacer being less than a width of the first limb.   
     
     
         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 spacer comprising a body portion and a flange, the flange comprising a greater width than the body. 
     
     
         6 . The archery bow limb assembly of  claim 5 , the flange contacting a first end surface of the first limb. 
     
     
         7 . The archery bow limb assembly of  claim 6 , the flange contacting a second end surface of the first limb. 
     
     
         8 . The archery bow limb assembly of  claim 5 , the flange contacting a top surface of the first limb, the flange contacting a top surface of the second limb. 
     
     
         9 . The archery bow limb assembly of  claim 8 , the flange contacting a bottom surface of the first limb, the flange contacting a bottom surface of the second limb. 
     
     
         10 . The archery bow limb assembly of  claim 1 , wherein the spacer extends an entire length of the first limb. 
     
     
         11 . The archery bow limb assembly of  claim 1 , the first limb comprising an aperture arranged to receive an axle, the spacer comprising an aperture arranged to receive the axle. 
     
     
         12 . The archery bow limb assembly of  claim 1 , a sidewall of the first limb comprising a lateral recess, the spacer comprising a protrusion oriented in the lateral recess. 
     
     
         13 . The archery bow limb assembly of  claim 12 , a sidewall of the second limb comprising a second lateral recess, the protrusion oriented in the second lateral recess. 
     
     
         14 . The archery bow limb assembly of  claim 1 , comprising a bearing accessory attached to the first limb and the second limb. 
     
     
         15 . The archery bow limb assembly of  claim 14 , the bearing accessory comprising a groove, a portion of the spacer oriented in the groove. 
     
     
         16 . 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. 
     
     
         17 . The archery bow limb assembly of  claim 1 , the first limb comprising a different width from the second limb. 
     
     
         18 . The archery bow limb assembly of  claim 1 , the limb material comprising a composite material comprising reinforcing fibers, the spacer comprising an elastomeric material.