PROBLEM TO BE SOLVED: To alleviate the pain that may occur due to the angle at the time of supporting a workers arm.SOLUTION: The present invention provides an arm support tool 100 for supporting a wearers arm which has an arm support part 20 extending in the prolonged direction of an arm in order to be wore on a wearers arm, an arm holder part 40 which is linked to one end of the arm support part 20 in order to support the arm by contacting with the arm, the other end of the arm support part 20, a rotary support part 30 rotatably linked around a first rotating shaft 31, and a trunk fixing part 10 linked with the rotary support part 30 in order to be fixed to a wearers body, the rotary support part 30 and the arm support part 20 having a rotation angle retaining mechanism retainable at an established rotation angle around the first rotating shaft 31 to link an arm receiving part 40 to the arm support part 20 swingably around a swing shaft 46.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】作業者の腕を支える際に、角度によって発生し得る痛みを軽減する。【解決手段】装着者の腕を支持するための腕支持器具100であって、装着者の腕に装着するため、腕の延長方向に沿って延長された腕支持部20と、腕支持部20の一端に連結された、腕と当接されて支えるための腕受け部40と、腕支持部20の他端と、第一回転軸31を中心に回転自在に連結された回転支持部30と、回転支持部30と連結された、装着者の胴体に固定するための胴固定部10とを備え、回転支持部30と腕支持部20は、第一回転軸31を中心として、既定の回転角度にて保持可能な回転角保持機構を備え、腕受け部40を、腕支持部20との間で、揺動軸46を中心に揺動自在に連結する。【選択図】図1
