The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Nov. 28, 2005
Tetsu Nonoshita, Izumi, JP;
Hideya Inoue, Sakai, JP;
Tetsu Nonoshita, Izumi, JP;
Hideya Inoue, Sakai, JP;
Shimano Inc., Osaka, JP;
Abstract
A bicycle sprocket basically has a metallic sprocket ring part and a synthetic resin fastening part that is configured to ensure that weight can be reduced and that loss of fastening force resulting from deterioration or deformation of the synthetic resin can be prevented. The metallic sprocket ring part includes a ring element with a plurality of sprocket teeth located on an outer periphery of the ring element, a plurality of connecting elements located on an inner periphery of the ring element and a plurality of internal fastening elements located on radial inner ends of the connecting elements, respectively. The synthetic resin fastening part is non-movably formed on both axial faces of the sprocket ring part at a location radially inwardly of the sprocket teeth so as to cover at least a portion of the inner periphery of the ring element, the connecting elements, and the internal fastening elements.