| 摘要 |
PURPOSE:To obtain a pinch roller inexpensive to manufacture and having excellent tape forwarding performance by a method wherein the outer surface of a boss is made convexly and a cylindrical rubber roller with a uniform thickness is fitted onto the boss in such a manner that the surface parted from mold of the rubber roller faces outward. CONSTITUTION:The boss 3 is formed so that its outer surface 32 is convex with a suitable curve. On the other hand, in order to obtain the rubber roller 4, at first a rubber cylinder with a proper thickness is made by means of metallic mold or the like. Secondly, its surface is ground until the roller 4 with a predetermined thickness is obtained. After that, the rubber roller 4 is turned inside out or the inner surface contacted with the mold goes outside and the ground outer surface goes inside. The rubber roller 4 turned inside out is fitted onto the outer surface of the boss 3. By making the rubber roller 4 in such a manner as mentioned above, the grinding work of the surface 41 of the rubber roller 4 after the rubber roller 4 being fitted on the boss 3 is eliminated. |
