Method of correcting radial force variation of tire and apparatus therefor
AssigneeBridgestone Corporation
InventorYuichiro Ogawa
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Abstract
A radial force variation of a tire is corrected irrespectively of the kind of the organic fiber cord used, wherein a radial force variation (RFV) is measured at room temperature to specify a tire position indicating a minimum value of RFV, and an inner face of a tread portion is pushed and enlarged outward in a radial direction of the tire by a pushing means at a RFV bottom region sandwiching the position of the minimum RFV value from both sides thereof in a circumferential direction of the tread portion, and such a push enlarged state is kept for a given time.
Claims5
A method of correcting radial force variation of a tire comprising a tread portion and a carcass ply of radial structure containing rubberized organic fiber cords therein, which comprises measuring a radial force variation at room temperature to specify a tire position indicating a minimum value of the radial force variation, pushing and enlarging an inner face of the tread portion outward in a radial direction of the tire by a pushing means at a radial force variation bottom region of the tire which sandwiches the position of the minimum value of the radial force variation in a circumferential direction of the tread portion, and keeping such a push enlarged state for a given time.
Dependencies are inferred from the claim text.