Patent ID: 7824287
Filing Date: 2010-11-02
Classification: B62M

Abstract:
1. A bicycle sprocket comprising: a sprocket ring part including an inner periphery and an outer periphery with a plurality of sprocket teeth arranged on the outer periphery, the sprocket ring part extending around a central rotation axis; a synthetic resin fastening part non-movably coupled to the sprocket ring part at a location radially inward of the sprocket teeth relative to the rotation axis; and a first attachment part at least partially embedded within the synthetic resin fastening part, the first attachment part including a connecting portion and a radial projecting portion extending outwardly from the connecting portion, the first attachment part being formed as a separate member from the sprocket ring part and the synthetic resin fastening part, and the synthetic resin fastening part overlying opposite axial faces of the radial projecting portion of the first attachment part with respect to the central rotation axis; and a second attachment part at least partially embedded within the synthetic resin fastening part, the second attachment part including a connecting portion and a radial projecting portion extending outwardly from the connecting portion to space the connecting portion radially inward of the sprocket ring part, the second attachment part being formed as a separate member from the sprocket ring part and the synthetic resin fastening part, and the synthetic resin fastening part overlying opposite axial faces of the radial projecting portion of the second attachment part with respect to the central rotation axis, the first and second attachment parts being separate members which are spaced relative to each other about the central rotation axis.