| 摘要 |
<p>A winding liner (10) for an unvulcanized rubber material, on which an unvulcanized rubber material (22) such as a band-shaped material for a tire tread portion is placed. The winding liner is wound around a winding shaft (16) so as to accommodate the unvulcanized rubber material. The winding liner includes a base portion (12), to which the unvulcanized rubber material (22) is adhered. The base portion does not expand and contract, but is bendable in a longitudinal direction thereof. Further, the base portion is provided with square pillar-shaped raised portions (14) on a surface (12A) thereof. The raised portions are positioned along the longitudinal direction of the base portion at both transverse direction end portions (12B, 12C) of the base portion. A space (20) for accommodating the unvulcanized rubber material is thereby defined between the base portion and the raised portions. As a result, contraction of tread rubber can be restrained and deformation of side rubber can be prevented because the unvulcanized rubber material is adhered to the base portion so as to be held within the space. <IMAGE></p> |
