An insertion portion having a bending portion that can be bent at least in the vertical direction on the distal end portion side, an operation portion to which a proximal end portion of the insertion portion is connected, a first end and a second end, and a first end Is connected to the insertion portion and pulled to bend the bending portion, a fixing member fixed to the second end of the pulling wire, a holding member holding the fixing member, A pulley having a disposition portion in which the holding member is disposed, which is rotatably provided in the operation portion.少なくとも上下方向に湾曲可能な湾曲部を先端部側に備えた挿入部と、前記挿入部の基端部が連結される操作部と、第１端と第２端とを有し、第１端が前記挿入部に連結され、牽引されることによって前記湾曲部を湾曲させる牽引ワイヤと、前記牽引ワイヤの前記第２端に固設される固定部材と、前記固定部材を保持する保持部材と、前記操作部内に回動自在に設けられる、前記保持部材が配設される配設部を有する、プーリーと、を具備する。
