BICYCLE CRANK AXLE TORQUE MODULATION DEVICE AND PROCESS FOR TUNING A TORQUE GENERATED BY THE DEVICE
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United States of America Patent
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Issued Date -
Nov 2, 2017
app pub date -
Dec 4, 2015
filing date -
Dec 4, 2014
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Abstract
The present invention relates to a bicycle crank axle torque modulation device (1), comprising a bracket (3) including a spring-bearing assembly (4), wherein each end of the spring (7) thereof is connected to each of the bearings (6) by a connection member (8); an eccentric surface (5) for driving said spring-bearing assembly (4), which is in permanent contact with the bearings (6) of said spring-bearing assembly (4), wherein one of the bracket (3) and the eccentric surface (5) is arranged to be attached to a bicycle frame and the other to be attached to said bicycle crank axle. The invention further relates to a torque tuning process, a kit comprising a crank axle and the modulation device, and to a bike including the same.
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