PROBLEM TO BE SOLVED: To provide an endoscope mounting fixture by which the flexibility of the insertion part of an endoscope is maintained, and the bending operation of the bend is made to be performed smoothly.SOLUTION: When advancing instruction is input by button operation of an operation unit, a three-layer coil springs 54a and 54b for transmission to which driving force has been given by a first motor 22a and a second motor 22b rotate to a predetermined direction. A pinion gear 55 rotates interlocking with the rotation of the three-layer coil springs 54a and 54b for transmission, and worm gears 44 of a first propulsion section 11a and a second propulsion section 11b rotate individually, respectively interlocking with the rotation of the pinion gear 55. In a selfpropulsion device 11, since driving force is separately given to the first propulsion section 11a and the second propulsion section 11b, the first propulsion section 11a and the second propulsion section 11b follow the bending of a bend 20.COPYRIGHT: (C)2012,JPO&INPIT【課題】内視鏡の挿入部の可撓性を維持し、湾曲部の湾曲動作を円滑に行わせる。【解決手段】操作ユニットのボタン操作により前進指示を入力すると、第一モーター22aと第二モーター22bにより駆動力が与えられた伝達用三層コイルバネ54a,54bが所定方向に回転する。伝達用三層コイルバネ54a,54bの回転に連動してピニオンギア55が回転し、ピニオンギア55の回転に連動して第一推進部11a及び第二推進部11bのウォームギア44がそれぞれ個別に回転する。自己推進装置11では、第一推進部11aと第二推進部11bとに別個に駆動力が与えられるため、第一推進部11aと第二推進部11bとが湾曲部20の湾曲に追従する。【選択図】図4
