ARCHERY BOW WITH COMPONENTS HAVING A CERAMIC COATING
Components and archery bows incorporating the same utilize coating layers with compositions that comprise ceramic and ceramic-based materials. In one embodiment, the coating layer is disposed on a wear surface of the component, which can interpose the coating layer between the component and a bowstring that moves relative to the component.
1 . An archery bow, comprising:
a cam assembly having a cam member with a body that has a pivot axis and forms an annular groove disposed radially about the pivot axis, wherein the body has a surface on which is disposed a coating layer having a composition comprising a ceramic material.
2 . The archery bow of claim 1 , wherein the coating layer has a thickness of 30 μm or less.
3 . The archery bow of claim 2 , wherein the thickness is from 12 μm to about 25 μm.
4 . The archery bow of claim 1 , wherein the surface forms a groove surface on at least part of the annular groove.
5 . The archery bow of claim 4 , wherein the surface includes a first surface and a second surface disposed on opposing sides of the cam member.
6 . The archery bow of claim 5 , wherein the coating layer forms a monolithic layer over more than one of the groove surface, the first surface, and the second surface of the cam member.
7 . The archery bow of claim 1 , wherein the ceramic material comprises a polymer-ceramic matrix.
8 . The archery bow of claim 1 , further comprising a riser and a limb member secured to an end of the riser, the limb member securing to the first cam member at the pivot axis.
9 . The archery bow of claim 8 , further comprising a bowstring coupled to the first cam member to position at least part of the bowstring in the annular groove.
10 . The archery bow of claim 8 , further comprising a cable guard spaced apart from the riser, wherein the coating layer is interposed between the cable guard and the bowstring.
11 . An archery bow, comprising:
a riser having a first end and a second end;
a first cam member and a second cam member, one each disposed on the first end and the second end of the riser, respectively, the first cam member and the second cam member comprising a pivot axis and an annular groove having a groove surface with a ceramic coating disposed thereon.
12 . The archery bow of claim 11 , wherein the ceramic coating is disposed on one or more surfaces found on a side of the first cam member and the second cam member.
13 . The archery bow of claim 11 , wherein the first cam member and the second cam member have an opening, and wherein the ceramic coating is disposed on a surface of the opening.
14 . The archery bow of claim 11 , further comprising a bowstring that contacts the groove surface.
15 . The archery bow of claim 11 , further comprising a cable guard and a set of power cables that extend between the first cam member and the second cam member, and wherein the cable guard comprises the ceramic coating.
16 . A pulley for an archery bow, said pulley comprising:
a body having an annular groove with a groove surface and a ceramic coating disposed on the groove surface.
17 . The pulley of claim 16 , wherein the ceramic coating has a material thickness of 30 μm or less.
18 . The pulley of claim 16 , wherein the ceramic coating comprises a polymer-ceramic matrix.
19 . The pulley of claim 16 , wherein the body has a first surface and a second surface disposed on opposing sides of the pulley, and wherein the ceramic coating is disposed on one of the first surface and the second surface.
20 . The pulley of claim 19 , wherein the coating layer forms a monolithic layer over more than one of the groove surface, the first surface, and the second surface of the pulley.