Tire configuration control method, holding apparatus for post cure inflation, and post cure inflation apparatus
AssigneeBridgestone Corporation
InventorMoriyasu Kumagai
Life of this patent
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Abstract
A post cure inflation is carried out in a state in which the position of a tire which corresponds to the peak portion of the measured radial runout of the tire whose internal portion is in a high temperature state after vulcanization is restrained or in a state in which the position between bead portions of the tire, which corresponds to the peak portion of the measured radial runout of the tire whose internal portion is in a high temperature state after vulcanization is held at a minimum width. As a result, the tire after vulcanization can be formed in an appropriate configuration.
Claims10
A tire configuration control method which controls the configuration of a tire after vulcanization, comprising the steps of:
- restraining at least a portion of the area which extends from the side surfaces to the circumferential surface of a tire whose internal portion is in a high temperature state after vulcanization;
- and
- effecting a post cure inflation in a state in which the tire is restrained wherein the position of said tire which corresponds to the peak position of the measured radial runout is restrained and the position of said tire which corresponds to the bottom position of the measured radial runout is not restrained.
A tire configuration control method which controls the configuration of a tire after vulcanization, comprising the steps of:
- holding the width between the bead portions of a tire whose internal portion is in a high temperature state after vulcanization so as to correspond to the holding width which is defined on the basis of configuration characteristics of a tire before vulcanization or configuration characteristics of a tire after vulcanization;
- and
- effecting a post cure inflation in a state in which the tire is held wherein the position of said tire which corresponds to the bottom position of the measured radial runout is held at a maximum holding width and the position of said tire which corresponds to the peak position of the measured radial runout is held at a minimum holding width.
A tire configuration control method which controls the configuration of a tire after vulcanization, comprising the steps of:
- restraining at least a portion of the area which extends from the side surfaces to the circumferential surface of a tire whose internal portion is in a high temperature state after vulcanization;
- supplying a predetermined pressure into the tire, said predetermined pressure being set to a normal inner pressure of the tire or a normal inner pressure in PCI of the tire;
- and
- effecting a post cure inflation in a state in which the tire is restrained wherein the position of said tire which corresponds to the peak position of the measured radial runout is restrained and the position of said tire which corresponds to the bottom position of the measured radial runout is not restrained.
Dependencies are inferred from the claim text.