Bicycle crank arm extender

Details Bicycle crank arm extender Bicycle crank arm extender

B - Operations, Transporting

62

M

B62M 3/02 (2006.01)

Patent

CA 2188211

A simple, finitely indexable bicycle crank arm extender that is readily, universally and securably installable on a bicycle crank arm including an elongated member having an inner end, an outer end and a plurality of transverse, threaded throughbores. The inner end of the elongated member mounts on the crank arm with a U-bolt that clamps the elongated member and crank arm together. The outer end of the elongated member mounts on the crank arm with a threaded fastener that is received in the distally-disposed threaded bore of the crank arm and threadingly engages one of the plurality of threaded throughbores in the elongated member. A pedal is rotatably mounted at the outer end of the elongated member.

Cette invention concerne une rallonge de manivelle de bicyclette à possibilité de réglage infinie, simple d'emploi et adapté à tous les modèles de manivelle. Il s'agit d'une tige comportant une série de trous traversants taraudés. La rallonge se fixe à un bout à la manivelle au moyen d'un étrier et, à l'autre bout, au moyen d'une fixation filetée vissée dans l'extrémité distale de la manivelle et dans l'un de ses trous traversants. L'extrémité distale de la rallonge reçoit la pédale qui peut tourner autour de son axe de fixation.

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