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US 9,890,838 B2Granted
Front gear changer
AssigneeSram, LLC
InventorsChristopher Shipman, Brian Jordan, Mark Santurbane, Henry Tsao
Life of this patent
Estimating the term…
Abstract
An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU.
Claims18
An electromechanical front gear changer for a bicycle having a chain, comprising:
- a base member attachable to the bicycle;
- a housing attached to the base member, wherein the housing includes electrical contacts which are surrounded by one or more power supply seals;
- a linkage movably coupled to the base member;
- a chain guide movably coupled to the linkage for contacting the chain;
- a motor supported by the base member;
- a gear transmission driven by the motor to move the linkage;
- a processor for controlling the motor;
- and
- a power supply supported by the base member and disposed rearwardly of the base member relative to the forward direction of the bicycle, the power supply providing power to the motor and the processor.
6 more elements
Dependencies are inferred from the claim text.