PROBLEM TO BE SOLVED: To provide an operation tool of an endoscope apparatus including a mechanism for performing bending operation, having a simple structure and capable of reducing a manufacturing cost.SOLUTION: An operation tool of an endoscope apparatus bendingly operating a bending section provided at an insertion body via operation wires 34a and 34b, includes: a wire holding member 52 for regulating a wiring route of wires 34a and 34b a guide surface 56 composed of a projecting columnar surface and a moving piece 54 circumferentially moving along the guide face 56. The two wires 34a and 34b, the wiring route of which is regulated by the wire holding member 52, are disposed from circumferential both ends 56a and 56b of the guide face 56 in opposite directions respectively along the guide face 56 such that end parts of the two wires 34a and 34b are locked to the moving piece 54.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】湾曲操作を行う機構を簡易な構造とし、製造コストを低減することが可能な内視鏡装置の操作具を提供する。【解決手段】操作用のワイヤ34a,34bを介して、挿入体に設けられた湾曲部を湾曲操作する内視鏡装置の操作具であって、ワイヤ34a,34bの配線経路を規定するワイヤ保持部材52と、凸状の円柱面からなるガイド面56と、ガイド面56に沿って周方向に移動する移動片54と、を備え、ワイヤ保持部材52にて配線経路を規定された2本のワイヤ34a,34bが、ガイド面56の周方向両側の端部56a,56bからそれぞれガイド面56に沿って反対向きに配設され、2本のワイヤ34a,34bの端部が移動片54に係止されるように構成する。【選択図】 図4
