Reduced-weight gear crank

Details Reduced-weight gear crank Reduced-weight gear crank

1985-05-31

1986-09-02

Leppink, James A.

Machine element or mechanism

Elements

Cranks and pedals

474152, G05G 114

Patent

active

046088784

ABSTRACT:
A gear crank comprising a crank having a pair of crank arms and an adapter having a chain gear, the adapter being provided with two groups of each two stays, the stays in each group being positioned at the rear side in the drive-revolving direction of each crank arm and in a range in which the respective crank arms are subjected to the maximum torque.

REFERENCES:
patent: 3550465 (1970-12-01), Maeda
patent: 4009621 (1977-03-01), Segawa
patent: 4144773 (1979-03-01), Addicks
patent: 4358967 (1982-11-01), Kastan

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