The purpose of the joint mechanism (1) according to the present invention is to be fixed in a curved state without increasing tension of a wire. This joint mechanism (1) includes: a first joint member (2) and a second joint member (3) that are pivotally connected elongated tension transmission members (4, 5) each of which has one end fixed to the second joint member (3) and which cause the second joint member (3) to pivot due to tension with respect to the first joint member (2) and joint fixing members (9, 10) which are movably provided on the first joint member (2) and which, when the tension of the tension transmission members (4, 5) is increased, are moved by the tension transmission members (4, 5) in a direction intersecting a longitudinal direction of the tension transmission members (4, 5) and pressed against the second joint member (3) in order to fix the first joint member (2) and the second joint member (3).Un mécanisme de raccord (1) selon la présente invention est destiné à être fixé dans un état incurvé sans augmenter une tension dun fil. Ledit mécanisme de raccord (1) comprend : un premier élément de raccord (2) et un second élément de raccord (3) qui sont reliés en pivotement des éléments de transmission de tension allongés (4, 5) dont chacun a une extrémité fixée au second élément de raccord (3), et qui amènent le second élément de raccord (3) à pivoter sous leffet dune tension par rapport au premier élément de raccord (2) et des éléments de fixation de raccord (9, 10) qui sont disposés mobiles sur le premier élément de raccord (2) et qui, lorsque la tension des éléments de transmission de tension (4, 5) est augmentée, sont déplacés par les éléments de transmission de tension (4, 5) dans une direction coupant une direction longitudinale des éléments de transmission de tension (4, 5) et pressés contre le second élément de raccord (3) de façon à fixer le premier élément de raccord (2) et le second élément de raccord (3).ワイヤの張力を増大させることなく任意の湾曲状態で固定すること