| 摘要 |
1504585 Securing tyre beads to rims INDUSTRIE PIRELLI SpA 4 March 1975 [4 March 1974 4 Oct 1974] 8850/75 Heading B7C Offset annular surfaces 9, 11, (10, 12) on a tyre bead are rendered co-planar when the tyre beads are secured on a wheel rim. The rim either defines a single channel for receiving both beads (Fig 1) or a respective channel for each bead (Fig. 1A). Figs. 1 and 3-5 (not shown) illustrate various bead shapes. |
