| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a belt driving device capable of preventing meandering of a belt, and decreasing size. <P>SOLUTION: A belt driving device rotation-drives a belt 30 in a single direction X endlessly stretched around a driving roller 10 and a driven roller 20. The belt 30 is rotation-driven by friction between the belt 30 and the driving roller 10, and the driven roller 20 driven-rotates by friction between the driven roller 20 and the belt 30. The driven roller 20 is installed so as to move along a guide surface 25 toward a side on which the belt 30 slacks rather than a line H connecting axes of the driving roller 10 and the driven roller 20, namely an upstream side in the rotating direction X. <P>COPYRIGHT: (C)2012,JPO&INPIT |
