摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device and an image forming device using the same, capable of realizing the driving of high accuracy with an inexpensive constitution. <P>SOLUTION: In this driving device wherein the driving force is transmitted by using at least a pair of helical gears engaged with each other, and the gears provided with void parts on an inner periphery and one side face of a tooth part are used as the helical gears, at least the pair of helical gears are engaged in a state that the thrust force generated by the engagement of at least the pair of helical gears is acted from a side having a relatively large number of void parts toward a side having a relatively small number of void parts. <P>COPYRIGHT: (C)2005,JPO&NCIPI |