| 摘要 |
PURPOSE:To facilitate the tire installation work by constituting a wheel integrally formed with a contracted tire supporting member from two webs in the circumferential direction of a projection body having a contracted tire supporting surface and arranging one web onto one side in the axial direction of the installation recessed part and the other onto the other side. CONSTITUTION:A projection body 8 for supporting a supporting surface member 7 does not continue in the circumferential direction, and is constituted of two web pieces each of which surrounds the half of a wheel rim, and one web pieces 8 is positioned at the right side part of an installation recessed part 5 close to a bead setting part 2, and the other web piece 8b is positioned at the part close to the bead setting part 3. Therefore, after the supporting surface member 7 is inserted into a tire, the tire is turned and positioned onto either A side or B side of the wheel rim, and the getting-over the flange 3 of a bead is facilitated. With such constitution, the tire installation work can be facilitated. |
