Device for evaluating the deformation of pneumatic tires

Details Device for evaluating the deformation of pneumatic tires Device for evaluating the deformation of pneumatic tires

1986-12-30

1988-02-16

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

250560, B60C 2300, G01M 1702

Patent

active

047247045

ABSTRACT:
A device for evaluating the deformation of vehicle tires running along the round comprises: means (10, . . . , 32, 34, 40, . . . ) for measuring the length (1.sub.1) of a first chord of said tires (1), said first chord extending along a first direction at a first distance from said ground; means (40) for calculating a theoretical length for a second chord of said tire located at a second distance from the ground as a function of the length of said first chord and of said first distance from the ground; means (10, . . . , 37, 40, . . . ) for measuring the length (1.sub.1) of said second chord of said tire (1) situated at said second distance from the ground; and means (40) for comparing the theoretical length of said second chord with the measured length of said second chord, and for generating an output signal representative of said comparison.

REFERENCES:
patent: 1849730 (1932-03-01), Morse
patent: 2051042 (1936-08-01), Hendel et al.
patent: 3724958 (1973-04-01), Callan
patent: 3787700 (1974-01-01), Chasson

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