| 摘要 |
<p>A method and apparatus for manufacturing an automotive tire bead (1), whereby an annular element (2) having a substantially circular section and consisting of a coiled metal wire (3) is formed by winding the wire (3) about a mandrel (17) defining a duct (9) coiling about the annular element (2). One end of a packing wire (5) of heat-shrinkable material is then inserted inside duct (9), blown along the whole length of the same, cut to size, and the two ends joined to form a loop. <IMAGE></p> |
