Problem to be solved: to provide a practical posture maintaining device that supports and assists in the daily life of the elderly patients with lumbar kyphosis.A posture keeping device 1 isTrunk rigid orthosis 2 attached to the trunk of the scoliosis patient with the trunk tilted forward while walkingAn arc-shaped rigid pad 31 attached to the left thigh of either of the left and right sidesThe knee brace 3 having a soft band 32 for mounting the hard pad 31 to the fore thigh portionThe lower joint rod 6 is pivotally connected to the upper joint rod 5, andA locking condition for restricting the rotation range within a predetermined posture maintaining angle agr； in which the lower joint rod 6 faces a substantially vertical downward and a locking state for braking the swing of the lower joint rod 6 within the posture maintaining angle. Alpha., andThe joint joint 4, which is switched to a non locked state in which the lower joint rod 6 in the posture maintaining angle. Alpha. Can be rotated to the angle toward the front side, is rotated..Diagram【課題】中高齢の脊柱後弯患者の日常生活上の動作を円滑に支援ないし補助するとともに、疼痛を抑制することが可能な実用的な姿勢維持装置を提供する。【解決手段】姿勢維持装置１は、歩行時に体幹が前傾する脊柱後弯患者の胴部に装着される体幹硬性装具２と、左右いずれか一方の前大腿部にあてがわれる円弧状に湾曲した硬性パッド３１と、硬性パッド３１を前大腿部に装着する軟性バンド３２とを備える大腿装具３と、上部継手杆５に対して下部継手杆６を回動可能に連結し、下部継手杆６が略鉛直下方を向く所定の姿勢維持角度α内に回動範囲を制限するとともにバネ力により姿勢維持角度α内での下部継手杆６の揺動を制動するロック状態と、姿勢維持角度α内にある下部継手杆６が前側上方を向く角度まで回動可能な非ロック状態とに切り換わる関節継手４と、を有する。【選択図】図８
