Chainring

US9731790B2 · kind B2 · utility

Assignee

• SRAM, LLC · US

Inventors

• Markus Reiter · Schweinfurt, DE
• Raymond Florczyk · Schweinfurt, DE
• Henrik Braedt · Diez, DE

Key dates

• Filing date: Nov 2, 2015
• Grant date: Aug 15, 2017
• Expiry date: Nov 2, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2165
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth, and at least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, wherein the center of a top land of at least some of the first and second groups of teeth are offset from a plane in a direction toward one of the inboard and outboard sides of the chainring.