Chain tensioning system for vehicles

Details Chain tensioning system for vehicles Chain tensioning system for vehicles

1978-11-20

1980-12-09

Husar, C. J.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Pulley shifter

7424214B, 474112, 180 72, F16H 710

Patent

active

042377447

ABSTRACT:
A wheeled vehicle is described having a drive sprocket bound onto the axle fixed to the vehicle and a driven wheel with a sprocket on its axle, with the driven chain connecting the sprocket for transmitting power from the drive sprocket to the driven sprocket. The invention comprises a chain tension adjusting device having a means for mounting the driven wheel axle for limited movement thereof toward and away from said drive sprocket axle, a fork frame having its legs rotatably mounted on the driven wheel axle on either side of the said driven sprocket and terminating at its closed end in at least one sleeve, with camming means mounted within said sleeve, and means for manually rotating said camming means within said sleeve so as to move said driven wheel axle by means of the fork frame toward and away from said drive sprocket axle. Additionally, there may be provided a means for adjusting the position of the shock-spring elements at the rear of the vehicle so as to vary the relationship of the axis of the shock-spring relative to the axle of the driven wheel so that the tension of the chain is varied as changing conditions occur while riding the bike. Such a tension may also be adjusted in accordance with the weight of the rider.

REFERENCES:
patent: 1141539 (1915-06-01), Greer et al.
patent: 1700631 (1929-01-01), Festini
patent: 2691553 (1954-10-01), Pettigrew

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