| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a belt driving apparatus that can stabilize a transmission driving force by just applying a tension from outside of a belt and enlarging a winding angle with respect to a driven pulley of the belt, use various kinds of belts such as a flat belt or a toothed belt and reduce belt noise. <P>SOLUTION: The belt driving apparatus includes: an upstream roller 71 that is located upstream in a travelling direction of the belt 22 at a delivery side of the belt 22 of the drive pulley 21, has a sloping slope 71 with respect to a tensional surface on the drive pulley 21 of the belt 22, and applies the tension to the belt 22 from outside of the belt 22; and at least one or more downstream roller 72 that is located more downstream in the travelling direction of the belt 22 than the upstream roller 71 at the delivery side of the belt 22 of the drive pulley 21, has a circumferential surface 72a parallel to the tensional surface on the drive pulley 21 of the belt 22, and applies the tension to the belt 22 from outside the belt 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
