Apparatus for measuring a resistance against slippage on road su

Details Apparatus for measuring a resistance against slippage on road su Apparatus for measuring a resistance against slippage on road su

1988-10-28

1990-03-20

Orsino, Joseph A.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

73 9, 73 8, 73104, G01N 1902

Patent

active

049090739

ABSTRACT:
According to the present invention, an apparatus for measuring a resistance against slippage on the road surface is so constructed that two measuring wheels adapted to be rotated by imparting a tractive force to the apparatus are connected to one another via a torsion bar extending therebetween, a difference in rotation is forcibly produced by changing a rotational speed of one of the measuring wheels and a slippage resistance on the road surface is measured by detecting a torque generated on the torsion bar due to the slippage resistance on the road surface.

REFERENCES:
patent: 3538742 (1970-11-01), Benning
patent: 4662211 (1987-05-01), Strong
patent: 4723444 (1988-02-01), Hajek

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