Bicycle drive chain

Details Bicycle drive chain Bicycle drive chain

1997-06-30

1998-09-08

Hannon, Thomas R.

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

474160, F16G 1302, F16H 5500

Patent

active

058038531

ABSTRACT:
A bicycle drive chain is provided for training on a rear speed changing gear assembly having up to nine concentric sprocket wheels. Each of the sprocket wheels has a thickness of about 1.8 mm. An outermost one of the sprocket wheels has an outer face that is displaced from an inner face of an innermost one of the sprocket wheels by a distance not greater than 37 mm. The bicycle drive chain includes inner and outer chain plates, pins for connecting the inner and outer chain plates, and rollers provided respectively on the pins for spacing apart the inner chain plates. The bicycle drive chain has a pitch defined by distance between axes of two adjacent ones of the pins and equal to about 12.7 mm. The pitch is 1.924.+-.0.060 times a total thickness of the bicycle drive chain.

REFERENCES:
patent: 2162042 (1939-06-01), Welser
patent: 4047603 (1977-09-01), Ozaki
patent: 4642078 (1987-02-01), Dupoyet
patent: 5098349 (1992-03-01), Wu

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