The purpose of the present invention is to provide a bending angle adjustment mechanism of an endoscope which facilitates adjustment operations and simplifies manufacture, contributing to cost reduction. To this end, this bending angle adjustment mechanism (50) of an endoscope (1) is provided with: a rod member (54) provided so as to extend in the length direction of an insertion unit (2) and comprising a threaded portion formed on the longitudinal surface a plate member (52) which is disposed parallel with the longitudinal direction of the rod member and through which the rod member is inserted at both ends, which are bent in an approximately perpendicular direction an adjustment piece (55) which screws together with the threaded portion of the rod member and is positioned in the middle of the threaded portion a guide member (53) which has a portion fixed between the rod member and the plate member, is arranged parallel with the rod member and the plate member, and comprises a guide path (53xa, 53xb) which is disposed in the longitudinal direction of the insertion unit and guides the position of the adjustment piece and a rotation stopping member (51) which keeps the rod member from rotating relative to the guide member about an axis in the longitudinal direction.La présente invention concerne un mécanisme dajustement dangle de flexion dun endoscope qui permet des opérations dajustement et simplifie la fabrication, ce qui contribue à la réduction des coûts. À cette fin, ce mécanisme dajustement dangle de flexion (50) dun endoscope (1) est pourvu de : un composant de tige (54) disposé de manière à sétendre dans la direction de la longueur dune unité dinsertion (2) et comprenant une partie filetée formée sur la surface longitudinale un composant de plaque (52) qui est disposé parallèlement à la direction longitudinale du composant de tige et par lintermédiaire duquel le composant de tige est inséré aux deux extrémités, qui sont fléchies dans une direction approximat
