PROBLEM TO BE SOLVED: To provide a cushion capable of supporting the hip part of a seated person with a plurality of air cells and stabilizing the attitude of the seated person on the respective air cells.SOLUTION: The hip part HP of the seated person is supported by respective air cells A1, A2, B1, B2, C1, and C2 in the first to the third groups of air cells bottom reaching states of two or more air cells at different positions in the seat surface width direction out of the respective air cells in the first to the third groups of air cells can be detected, and it is determined on the basis of a detection result of the bottom reaching states whether amounts of crush of the respective air cells are on one side in the seat surface width direction or on the other. Also, amounts of air in the respective air cells of the first to the third groups of air cells can be adjusted for each group of air cells and, by making the amounts of air in the respective air cells of the second group of air cells, for example, larger than the amounts of air in the respective air cells in the third group of air cells, the one-sided amounts of crush in the respective air cells are mitigated and the attitude of the seated person can be stabilized.COPYRIGHT: (C)2009,JPO&INPIT【課題】複数のエアーセルによって着座者の臀部を支持することができ、しかも各エアーセル上の着座者の姿勢を安定させることのできるクッションを提供する。【解決手段】着座者の臀部HPが第1乃至第3エアーセル群の各エアーセルA1,A2,B1,B2,C1,C2によって支持され、第1乃至第3エアーセル群の各エアーセルのうち互いに着座面幅方向に位置の異なる2つ以上のエアーセルの底付き状態を検知可能であり、前記底付き状態の検知結果に基づき、各エアーセルの潰れ量が着座面幅方向の一方側と他方側の何れに偏っているか判定される。また、第1乃至第3エアーセル群の各エアーセル内の空気量を各エアーセル群ごとに調整可能であり、例えば第2エアーセル群の各エアーセル内の空気量を第3エアーセル群の各エアーセル内の空気量よりも多くすることにより、各エアーセルの潰れ量の偏りを緩和し、着座者の姿勢を安定させることができる。【選択図】図1
