PROBLEM TO BE SOLVED: To provide an endoscope that can prevent the flexure of a traction member without being influenced by the outer diameter of a traction mechanism wound with the traction member and by the degree of stiffness of the traction member.SOLUTION: An endoscope 10 includes an insertion part 12 having a curved part 23 an operation input part 54 that can operate the curved part curvedly a turning shaft C2 turned by the input of operation to the operation input part a moving part 72a interlocked with the turning of the turning shaft to move around the turning shaft a first traction mechanism 74U having a first groove part 92 for movably holding the moving part and turnably supported to the turning shaft a first traction member 76U wound around the first traction mechanism and fixed and moved by the turning of the first traction mechanism to impart driving force to the curved part a second traction mechanism 74D having a second groove part 94 for movably holding the moving part and turnably supported to the turning shaft and a second traction member 76D wound around the second traction mechanism and fixed and moved by the turning of the first traction mechanism to impart driving force to the curved part.COPYRIGHT: (C)2014,JPO&INPIT【課題】牽引部材が巻回された牽引機構の外径や牽引部材のコシの強さに影響を受けずに牽引部材の撓みを防止可能な内視鏡を提供する。【解決手段】内視鏡10は、湾曲部23を有する挿入部12と、湾曲部を湾曲操作可能な操作入力部54と、操作入力部への操作の入力により回動する回動軸C2と、回動軸の回動に連動して回動軸の軸回りを移動する移動部72aと、移動部を移動可能に収容する第1の溝部92を有し回動軸に回動可能に支持された第1の牽引機構74Uと、第1の牽引機構に巻回されて固定され第1の牽引機構の回動により移動し、湾曲部に駆動力を付与可能な第1の牽引部材76Uと、移動部を移動可能に収容する第2の溝部94を有し回動軸に回動可能に支持された第2の牽引機構74Dと、第2の牽引機構に巻回されて固定され第1の牽引機構の回動により移動し、湾曲部に駆動力を付与可能な第2の牽引部材76Dとを有する。【選択図】図3
