Tire-rim assembly for motorcycle

Abstract

Abstract PURPOSE:To prevent a tire from going off a rim during movement under puncture, by providing protruded edges on the beads of the tire which comprises a toroidal carcass and reinforcing layers of steel cords and by fitting the protruded edges in the grooves of the inner portions of the bead seats of the rim. CONSTITUTION:Fitting grooves 14 are provided on the inner portions 13 of bead seats 11 continuous to the recess 10 of a rim 9, so that the grooves extend in the circumferential direction of the rim. A tire 1 comprises beads cores 3, a toroidal carcass 4 of organic fiber cords, a tread 5 and reinforcing layers 6 of steel cords inclined at an angle of 20 to 60 deg.C to the horizontal center line of the cross section of the tire. The beads of the tire 1 are provided with protruded edges 7. After the beads are put in the recess 10 of the rim 9, the tire 1 is filled with air, so that the beads are pushed toward the bead seats 11 and the flanges 12 of the rim and the protruded edges 7 are fitted in the grooves 14. As a result, the tire 1 is prevented from going off the rim 9 during movement under puncture.

Inventors

• 👤 Eiji Nakasaki
• 👤 中崎　栄治

Bibliographic Details