PROBLEM TO BE SOLVED: To provide a fixing structure of a wire in which degradation of a bendable wire under heat is reduced by suppressing a fact that the heat at the time of laser welding is directly loaded on the bendable wire.SOLUTION: A fixing structure of a wire includes a tip end joint ring 15, a bendable wire 17 which is extended in a length direction and of which a tip end part is arranged on an inner peripheral surface from an outer peripheral surface or an opening of the tip end joint ring 15, and a connection member 20 which has a fixing part 22 to which a tip end of the bendable wire 17 is fixed on a base end side, and has a welding part 21 that is welded to the tip end joint ring 15 on the tip end side, with a first dimension D1 along radial direction of the bendable wire 17 at the welding part 21 being identical with or larger than a second dimension D2 along the radial direction of the bendable wire 17 at the fixing part 22.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2018,JPO&INPIT【課題】レーザー溶接時の熱が湾曲ワイヤに直接的に負荷されることを抑制して湾曲ワイヤの熱による劣化を低減したワイヤの固定構造を提供する。【解決手段】ワイヤの固定構造は、先端節輪15と、長手方向に延伸され、先端部が外周面もしくは先端節輪15の開口から内周面に配置される湾曲ワイヤ17と、基端側に湾曲ワイヤ17の先端が固定される固定部22を有し、先端側に先端節輪15と溶接される溶接部21を有し、溶接部21における湾曲ワイヤ17の径方向に沿った第1の寸法D1が固定部22における湾曲ワイヤ17の径方向に沿った第2の寸法D2と同じかそれ以上になるよう構成された接続部材20と、を備えている。【選択図】図2
