PROBLEM TO BE SOLVED: To provide an exercise chair that enables a user to perform pelvis inclination with no risk of being overturned while an upper half of the body is rotated (swung) from side to side.SOLUTION: An exercise chair includes a frame 1, a seat 2, a backrest 3, and a support arm 4, and a rotational shaft 10 is fitted to a seat support part 12a of the frame 1. Since the support arm 4 is fitted to the rotational shaft 10, the backrest 3 can rotate around the rotational shaft 10 on the outer peripheral side of the seat 2. The seat 2 is fitted to the seat support part 12a so as to elastically swing from side to side. Therefore, when an upper half of a body is rotated in a state that a user is seated in the seat 2 and the upper half of the body is on the backrest 3, the backrest 3 rotates around the rotational shaft together with the support arm 4, and the upper half of the body rotates smoothly. When pelvis inclination is performed while the upper half of the body is rotated (swung) from side to side, the seat 2 is inclined in a direction opposite to the direction of the pelvis inclination, which enables sufficient pelvis inclination to be performed without the user being overturned.COPYRIGHT: (C)2014,JPO&INPIT【課題】上半身を左右に回転(旋回)させたままで転倒することなく骨盤傾斜が行えるエクササイズチェアを提供する。【解決手段】フレーム1と、座部2と、背凭れ部3と、支持アーム4を備え、フレーム1の座部支持部12aに回転軸10が取り付けられ、回転軸10に支持アーム4が取り付けられることで、背凭れ部3が座部2の外周側を回転軸10回りに回動可能であり、座部2は座部支持部12aに左右に弾性的に揺動可能に設けられている。したがって、座部2に着座して上半身を背凭れ部3に当てた状態で、上半身を回転すると、背凭れ部3が支持アーム4とともに回転軸回りに回動し、これによって上半身がスムーズに回転し、上半身を左右に回転(旋回)させたままで骨盤傾斜させると、それに伴って座部2が骨盤傾斜させた方向と逆方向に傾くので、転倒することなく十分な骨盤傾斜が行える。【選択図】図3
