Cooling chain drive for a motorcycle having balloon tire

Details Cooling chain drive for a motorcycle having balloon tire Cooling chain drive for a motorcycle having balloon tire

1986-10-24

1988-07-05

Love, John J.

Motor vehicles

Special wheel base

Having only two wheels

180227, 474 93, 474144, B60K 1106

Patent

active

047548339

ABSTRACT:
A suspension and drive arrangement for an off the road motorcycle having a balloon tired rear wheel. The rear wheel is suspended for movement relative to the frame by a Y-shape trailing arm and a pair of vertically extending suspension elements are interposed between the trailing arm and the frame for cushioning shock transmitted to the rear wheel. The rear wheel is driven by a chain drive including a first chain that drives an intermediate shaft and a second chain which drives the rear wheel from the intermediate shaft. The first chain is positioned inwardly of the second chain and a pair of embodiments illustrate devices for cooling the first chain. In one embodiment, the chain is cooled purely by ram air whereas the other embodiment provides cooling with both ram air and forced air flow.

REFERENCES:
patent: 4039200 (1977-08-01), McGonegle
patent: 4493677 (1985-01-01), Ikenoya
patent: 4497285 (1985-02-01), Kondo
patent: 4531928 (1985-07-01), Ikenoya
patent: 4621680 (1986-11-01), Funabashi
patent: 4631977 (1986-12-01), Kawashima

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