| 摘要 |
PURPOSE:To make it easy to attach and detach a tire rim to and from a wheel hub, by interposing between them a bag which can be expanded and contracted by the internal air pressure. CONSTITUTION:There is a gap between the outside surface of the wheel hub 1 and the inside surface of the tire rim 2 in the radial direction. The bag 4 made of flexible material is provided in said gap. The rim 2 is kept from moving in the axial direction by the flange 1a of the hug 1 and a side ring 6 supported with a lock ring 5 on the hub 1. To attach the rim 2 to the hub 1, air is introduced into the bag 4. To detach the rim from the hub, the air is discharged from the bag and the lock ring 5 and the side ring 6 are removed. Therefore, the attachment and the detachment are easily performed. |
