| 摘要 |
PROBLEM TO BE SOLVED: To provide an endoscope apparatus that surely prevents an insertion member from being damaged by drum rotation when the endoscope insertion member is taken up by the drum. SOLUTION: An operator lever 4-35 has a presser pin 4-36 jutted downward. A one-way gear 4-31 having a clutching mechanism and being rotatable only in one direction is fixed to the one end of the moving plate 4-30 that engages with the tip of the presser pin 4-36 and freely swivels. A blade spring 4-33 constrains the moving plate 4-30 to move in a certain direction all the time. Consequently, the one-way gear 4-31 is engaged with the gear 3-18 formed on the periphery of the second side panel 3-7. When the gear 3-18 is engaged with the one-way gear 4-31, the drum 3 can be rotated in a direction of rotation permitting taking up of the insertion member by the one-way gear 4-31. However, the drum 3 cannot be rotated in an opposite direction, that is, a direction of rotation permitting drawing out of the insertion member. Besides, the drum 3 does not rotate even in the direction of rotation permitting drawing out of the insertion member owing to the one-way gear 4-31. The drum 3 is therefore locked and disabled to rotate. COPYRIGHT: (C)2006,JPO&NCIPI
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