G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 1/34 (2006.01) B24B 5/36 (2006.01) B24B 49/16 (2006.01) G01M 17/02 (2006.01)
Patent
CA 2107040
A method for simultaneously correcting excessive radial force variations and excessive lateral force variations in a pneumatic tire (10) is provided. The method as represented by the selected Figure 1 is characterized by the steps of indexing a tread (12) on the tire (10) into a series of circumferential increments I(n), and obtaining a series of radial force measurements R(n) corresponding to these increments and a series of lateral force measurements L(n) corresponding to these increments. A radial grind component RSGR(n), a first lateral grind component L1SGR(n), and a second lateral grind component L2SGR(n) are generated for each of the increments I(n) by a computer (32). These grind components represent the amount of material removal necessary to correct for either excessive radial force variations or excessive lateral force variations in the tire. The grind components RSGR(n), L1SGR(n), and L2SGR(n) are used to generate first and second radial/lateral grind components R/L1SGR(n) and R/L2SGR(n) which represent the amount of material removal on first and second shoulder regions (121, 122) of the tread (12), respectively, of each increment I(n) necessary to simultaneously correct excessive radial and lateral force variations. Material is then removed for the first and second shoulder regions (121, 122) of the tread (12) of each increment I(n) according to the value of the corresponding first radial/lateral grind component R/L1SGR(n) and the value of the corresponding second radial/lateral grind component R/L2SGR (n), respectively.
General Tire Inc.
Smart & Biggar
LandOfFree
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