It is an object of the present invention to provide an articulated joint for an orthostic brace which can easily adjust a movable range and can reduce a load. (8) formed in a horseshoe shape having a rotating shaft (9) formed substantially in the center thereof and a horseshoe shaped recessed portion (8) formed in a communicating manner with the recessed portion (8) at a position opposed to substantially the center of the inner peripheral surface A first joint part (2) having a groove part (13), a first projection part (20) formed so as to be insertable into the recess part (8), and a first projection part A second joint portion having a second protrusion formed so as to be insertable into the recessed portion with a space therebetween and rotatably attached to the rotation shaft, (18) is bent in a centrifugal direction and is anchored in the groove (13), and the other end (19) is bent in a centrifugal direction And a torsion spring (16) which is bent and formed between the first convex portion (20) and the second convex portion (21).本発明は、可動域の調整を容易に行うことができると共に、荷重を軽減することが可能な義肢装具用関節継手を提供することを目的とするものである。略中央に回転軸(9)が形成された馬蹄形状の凹部(8)と、凹部(8)の内周面(12)の略中央と対向する位置に凹部(8)と連通状に形成された溝部(13)を有する第1の継手部(2)と、凹部(8)内に挿入可能に形成された第1の凸部(20)と、第1の凸部(20)と所定の間隔を設けて凹部(8)内に挿入可能に形成された第2の凸部(21)を有し、かつ、回転軸(9)に対して回転可能に枢着された第2の継手部(3)と、回転軸(9)に回転自在に外挿されると共に、一端(18)が遠心方向へ折曲形成されて溝部(13)に係留され、かつ、他端(19)が遠心方向へ折曲形成されて第1の凸部(20)と第2の凸部(21)との間に位置するねじりバネ(16)とを備える。
