| 摘要 |
PURPOSE:To facilitate assembling an inner ring into a rim by providing a ring- shaped inner ring incorporated in a well portion of a drop center rim, and separating one circumferential place in such a manner as to freely connect, and providing a bent portion on a circumferential part. CONSTITUTION:A wheel has a drop center rim 1 where a tire 2 and a ring- shaped inner ring 3 are mounted. The inner ring 3 has the inside diameter side mounted on a drop sent well portion 4 formed on the rim 1 and the outside diameter side formed larger than the diameter of the rim 1 so as to support load when the tire is punctured. In this case, a separating portion 5 is provided at one circumferential portion of the inner ring 3, the separating portion 5 is connected by a detachable connecting piece 7 and fixed to the well portion 4 of the rim 1. Notch portions 6 are formed at many places of the inner peripheral side of the inner ring 3. When the connecting piece 7 is detached to expand the separating portion 5, the respective notch portions 6 are bent in the connecting state so as to enlarge the inside diameter. |
