| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the dispersion of lubricant allowing a support body and a top cap rubber to displace in the axial direction as much as possible. SOLUTION: In a tread support device of a tire having a solid support body 1, an elastic top cap rubber 2 made of vulcanized rubber compound, lubricant 5 disposed between the support body 1 and the top cap rubber 2 and allowing them to displace in the peripheral direction, at least one straight peripheral groove 124 is made in the end of each shoulder of the support ring 12 of the support body 1 and a peripheral rib 25 corresponding to the inner surface 200 in the radial direction of the top cap rubber 2 is fitted in the peripheral groove 124 and the rib 25 is in the state of contact with the bottom of the groove 124.</p> |
