| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an endoscope constituted so as to reduce the wire drawing operation force of a traction mechanism part for adjusting the flexibility of an insertion part to easily operate an operation lever by the finger of an operator. <P>SOLUTION: The traction mechanism part of the endoscope is constituted of a pulley for drawing a wire 46 to slacken the same and a speed reducing mechanism part having a worm gear 60 for applying not only rotary drive force but also self-braking force to the pulley and applies drive to the pulley by the repeated revolving operation of a small stroke of the operation lever 40. Since the pulley is revolved through the speed reducing mechanism part in the traction mechanism part, the drawing operation force of the wire 46 can be reduced and the operation lever 40 can be easily operated by the finger of the operator. Further, since the drawn wire 46 holds the state wound up around the pulley by the self-braking force of the worm gear 60, the flexibility of a soft part can be held even if the finger of the operator is separated from the operation lever 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
