Bicycle crank arm and chainring carrier assembly
AssigneeSram, LLC
InventorsJAMES ISAAC MEYER, TREVOR COLE KRUGMAN
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Abstract
A bicycle chainring structure is provided. The chainring structure includes a plurality of teeth disposed about the radially outer circumference of the chainring structure and a pairing feature including a wall forming a radially interior profile formed on the chainring structure, the radially interior profile defined by lobes extending radially inward. The chainring structure also includes a torque-transmitting coupling formed in the chainring structure, the torque-transmitting coupling including a plurality of chainring holes disposed in the radially inward extending lobes and configured to receive input torque from a crank arm and transmit the input torque to the plurality of teeth.
Claims17
A chainring structure, comprising:
- a plurality of teeth disposed about the radially outer circumference of the chainring structure;
- a pairing feature including a wall forming a radially interior profile formed on the chainring structure, the radially interior profile defined by lobes extending radially inward;
- and
- a torque-transmitting coupling formed in the chainring structure, the torque-transmitting coupling including a plurality of chainring holes disposed in the radially inward extending lobes and configured to receive input torque from a crank arm and transmit the input torque to the plurality of teeth.
Dependencies are inferred from the claim text.