Crank arm for a bicylce

Details Crank arm for a bicylce Crank arm for a bicylce

1990-06-11

1991-04-30

Luong, Vinh T.

Machine element or mechanism

Elements

Cranks and pedals

74579R, G05G 114

Patent

active

050107852

ABSTRACT:
A tubular crank arm to be connected between the pedal and the hub bearing assembly of a bicycle. The inner end of the crank arm includes a spline connection and the outer end of the crank arm includes a threaded connection. The threaded connection is mounted within a plug. This plug has an irregularly shaped exterior surface. This plug is to be welded to the housing with the exterior surface of the plug also establishing a mechanical interlocking connection with the tubular housing over and above that of the welding securement of the plug to the housing.

REFERENCES:
patent: 626227 (1899-06-01), Gaylor
patent: 4171822 (1979-10-01), Thun
patent: 4704919 (1987-11-01), Durham
patent: 4728218 (1988-03-01), Durham
patent: 4770058 (1988-09-01), Lilie et al.
patent: 4930405 (1990-06-01), Lilie

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