Compact radial force measuring apparatus for determining variati

Details Compact radial force measuring apparatus for determining variati Compact radial force measuring apparatus for determining variati

1990-01-16

1990-09-18

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

G01M 1702

Patent

active

049569953

ABSTRACT:
A compact radial force measuring apparatus for determining variations in radial force exhibited by a tire and rim assembly permits mounting of a tire and rim assembly on a rigidly mounted rotatable hub assembly. A rotatable drum having a diameter substantially smaller than that of the tire and rim assembly is disposed with its rotational axis parallel to the rotational axis of the hub assembly and is then brought into contact against a circumferential area of the mounted tire and rim assembly with a force that will load the tire and rim assembly to a desired level. The load force is measured by a force sensor such as a load cell. The tire and rim assembly and drum are then rotated, either manually or by other means, while holding the tire-to-drum center-to-center dimension constant. Variations in the force attempting to change the center-to-center dimension exerted by the tire and rim assembly against the drum are sensed, and recorded.

REFERENCES:
patent: 4501141 (1985-02-01), Takayanagi et al.

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