| 摘要 |
<p>PURPOSE:To enable clear demarkation lines to be provided easily and further a stable pattern free from peeling etc. to be provided by using a hot punch with a sharp projecting edge along the end periphery having a shape suitable to a shaped pattern. CONSTITUTION:The sheet material 4 having compatibility with the profile part 12 of a plastic molding is arranged on the external surface 13 and the hot punch 3 is dropped to punch the sheet material 4 with the projecting edge 31. In this time, since the molding body has a foamed resin core part 11 inside, the profile part 12 easily encroaches the core part and the punch invades into the external surface 13 by a little amount. Therefore, the sheet material 4 is softened and can be easily cut (fused), the punched sheet material 41 is heated, softened and welded in a unitary body to the external surface part 13 of the molding body without any projections outside.</p> |
