The present invention yet simple structure, of a place that can be done better regulate the operation of the jaw position to provide a cervical brace. and A support body is formed of a synthetic resin material having elasticity, becomes a pair of jaw support member pivotally mounted rotatably by pivot pins, and jaw mounting members from , wherein the said adjusting locking hole with adjustable locking hole is provided in the support body is a plurality stepped portion is formed, said pair of right and left jaw support member, and comprising a plurality stepped portion capable of engaging the engaging protrusion engagement member with the engaging member is provided is configured to engage the resilient always the support body is biased in the adjusting engagement hole on the side of the of the jaw support member, said engaging member release mechanism that releases the elastic engagement for said adjustable engagement hole is provided.BACKGROUND 2【課題】簡単な構造でありながら、顎位置の調節を操作性良く行い得るところの頚椎装具を提供すること。【解決手段】支持本体と、弾性を有する合成樹脂素材により形成され、枢支ピンにより回動自在に枢着された左右一対の顎支持部材と、顎載置用部材とからなり、前記支持本体に調節係止孔が設けられると共に該調節係止孔には複数段部が形成され、前記左右一対の顎支持部材に、前記複数段部係合可能な係合突起を備えた係合部材が設けられると共に該係合部材が、その顎支持部材の弾性により常時前記支持本体の側に附勢されて前記調節係止孔に係合するように構成され、前記係合部材の前記調節係止孔に対する弾性係合を解除する解除機構が設けられている。【選択図】図2
