| 摘要 |
PURPOSE:To prevent a belt from meandering and to stabilize its running by a simple structure, by providing integrally a guide part projecting to the inside, in a position apart from the side end of an endless belt, and providing a guide groove in a corresponding position on the peripheral surface of a roller. CONSTITUTION:A guiding part 14 is projected and provided integrally on the position of the inside from the side end 13 of an endless belt 12 which is wound to a roller 11 and runs, and in the position of the roller 11 corresponding to said part, a ring-shaped guiding groove 15 is provided. When the belt 12 runs, the belt receives the pressing force of P1 and P2 in the right and left of the guiding part, therefore, the guiding part does not run on the peripheral surface of the roller but can run stably. |
