PROBLEM TO BE SOLVED: To provide a joint orthosis which can finely adjusts timing of extension and rotation of a joint and is inexpensively manufactured.SOLUTION: The joint orthosis 1 includes an inside support member 10 and an outside support member 20 and is mounted on a joint part. At least one of the inside support member 10 and the outside support member 20 includes: a first arm 11 or 21, wherein a first shaft 12 and a first guide groove 14 are formed in the first arm 11, and a first shaft 22 and a first guide groove 24 are formed in the first arm 21 and a second arm 15 or 25, wherein a second shaft 16 and a second guide grooves 19 are formed in the second arm 15, and a second shaft 26 and a second guide groove 29 are formed in the second arm 25. The joint orthosis 1 is an extensible/contractible support member configured in such a way that the first and second arms are linked with each other relatively rotatable while extending or contracting the total length upon rotation, by a first cam mechanism composed of the first shaft 12, 22 and the second guide groove 19, 29, and a second cam mechanism composed of the second shaft 16, 26 and the first guide groove 14, 24, and the total length is configured so as to extend/contract upon rotation.COPYRIGHT: (C)2012,JPO&INPIT【課題】関節の伸展と回旋のタイミングを細かく調整可能であって安価に製造可能な関節装具を提供する。【解決手段】本実施形態に係る関節装具1は、内側支持部材10と外側支持部材20とを有し、関節部分に装着される関節装具1であって、内側支持部材10又は外側支持部材20の少なくとも一方は、第一軸12,22と第一ガイド溝14,24とが形成された第一アーム11,21と、第二軸16,26と第二ガイド溝19,29とが形成された第二アームと15,25、を備え、第一軸12,22と第二ガイド溝19,29とから構成される第一カム機構と、第二軸16,26と第一ガイド溝14,24とから構成される第二カム機構とにより、第一アームと第二アームとが回動時に全長が伸縮しながら相対的に回動可能に連結されると共に、回動時に全長が伸縮するように構成された伸縮支持部材である。【選択図】図1
