Patent ID: 9555855
Date: 2017-01-31
CPC Classifications: B62M

Claim:
1. A bicycle sprocket comprising: a sprocket body having a rotational axis; and a plurality of sprocket teeth extending radially outwardly from an outer periphery of the sprocket body, the sprocket body including a first layered member, a second layered member and a third layered member, the first layered member having a first axial surface and a second axial surface opposite to the first axial surface, the second layered member being attached to the first axial surface of the first layered member at an interior axial surface of the second layered member such that the first and second layered members overlap each other in an axial direction as viewed parallel to the rotational axis, the second layered member having an exterior axial surface, the third layered member being attached to the second axial surface of the first layered member at an interior axial surface of the third layered member such that the first and third layered members overlap each other in the axial direction as viewed parallel to the rotational axis, the third layered member having an exterior axial surface, at least one of the second and third layered members having at least one concavo-convex portion positioned radially inward from each of the sprocket teeth, the at least one concavo-convex portion defining a recess on one of the interior axial surfaces of the second and third layered members and defining a projection on the exterior axial surface of the one of the second and third layered members.