| 摘要 |
<p>PURPOSE:To displace a roller shaft by rotatably bearing the one side of the axial end of a meandering detecting roller member by a meandering detecting member, and connecting a bearing member to rotatably bear the other side of the axial end and the detecting member through a connecting member to move the detecting member. CONSTITUTION:A meandering detecting member 6 rotated by contacting friction caused by the meandering of a belt 4 is rotatably born at the one side of the ends of the shaft 3a of a meandering detecting roller member 3. In addition to that, the other end of the shaft 3a is born by a bearing member 7, and the meandering detecting member 6 and the bearing member 7 are connected by a connecting member 9 through arms 6b, 7b. The connecting member 9 is energized upwards, namely in a belt stretching direction, by a spring, and the detecting member 6 is energized by a spring 11 in a direction opposite to a direction where the detecting member 6 is contactedly moved by the contact friction of the belt 4. Thus in the case of no meandering, the spring 11 keeps the belt 4 at an ordinary position the belt 4, and when the meandering occurs, the then resultant friction moves the detecting section 6 in a direction B, and leaningly moves also the roller member 3 in the direction B, and the meandering is thereby eliminated.</p> |
