Bicycle drive chain

Details Bicycle drive chain Bicycle drive chain

1989-07-28

1990-10-02

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

474227, 474234, F16G 1306

Patent

active

049604031

ABSTRACT:
A drive chain for use in a bicycle having a change-speed apparatus for example. In order to improve the engageability of the chain both in the chain running direction and in the chain deflecting direction for a change speed operation, the chain is constructed generally as a offset type having a series of alternately interconnected first plates and second plates. The improvement in the engageability in the two directions is provided by forming a middle portion of each first plate to be flush with or extend outwardly relative to a wide first connecting portion and also by forming a middle portion of each second plate to extend outwardly relative to the first connecting portion.

REFERENCES:
patent: 2546368 (1951-03-01), McIntosh et al.
patent: 2687651 (1954-08-01), Webb
patent: 4050323 (1977-09-01), I'Anson

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