Bicycle crank arm extender

Details Bicycle crank arm extender Bicycle crank arm extender

1995-08-28

1996-10-22

Bonck, Rodney H.

Machine element or mechanism

Elements

Cranks and pedals

403104, B62M 302

Patent

active

055665896

ABSTRACT:
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.

REFERENCES:
patent: 625986 (1899-05-01), Pennock
patent: 823712 (1906-06-01), Uhlmann
patent: 3922929 (1975-12-01), Marchello
patent: 4648287 (1987-03-01), Preskitt
patent: 4850245 (1989-07-01), Feamster et al.
patent: 4882945 (1989-11-01), Trevizo
patent: 4915374 (1990-04-01), Watkins
patent: 5161430 (1992-11-01), Febey

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