PROBLEM TO BE SOLVED: To provide a chair which performs an oscillating motion capable of being easily predicted by a user, by adjusting time until an oscillation direction is switched, and which performs oscillation giving a feeling of safety to the user by the regular oscillation.SOLUTION: A chair includes a chair body 11 for supporting a users body, a base 12 for oscillatably supporting the chair body 11, oscillation means 13 for oscillating the chair body 11, and a control part 31 for controlling the oscillation means 13. The control part 31 oscillates the chair body 11 so that first stop time and second stop time, when the chair body 11 stops at the oscillation end of the oscillating motion, can be almost equal to each other.COPYRIGHT: (C)2015,JPO&INPIT【課題】揺動方向が切り替わるまでの時間を調整し、使用者に予測しやすい揺動動作をおこなうとともに、規則的な揺動により使用者とって安心感のある揺動を行う椅子を提供する。【解決手段】身体を支持する椅子本体11と、前記椅子本体11を揺動可能に支持するベース12と、前記椅子本体11を揺動させる揺動手段13と、前記揺動手段13を制御する制御部31と、を有し、前記制御部31は、揺動動作の揺動端部で椅子本体11が停止する第一停止時間と第二停止時間が略同一となるように椅子本体11を揺動させる。【選択図】 図34
