< Topic >The wheelchair which advances with the natural movement of the arm of the human is offered.SolutionsIn order seat 11 and, to become concentric circle in the wheel 12 of 1 pair it is laid out on crosswise both sides of the seat and the wheel, the annular handle the tubed wheel hub it joins the wheelchair, 17 which is joined 14 which is laid out and the wheel and the annular handle and it possesses the handle axis 18 which, passes to the wheel hub it has with the direction of rotation reversal feature 21 which reversing, transmits revolution of handle axis 18 to wheel hub 17.< Choice figure >Drawing 2【課題】人間の腕の自然な動きにより前進する車椅子を提供する。【解決手段】車椅子は、座席11と、座席の幅方向両側に配置された1対の車輪12と、車輪に同心円となるように配置された環状ハンドル14と、車輪と結合する筒状の車輪ハブ17および環状ハンドルと結合し車輪ハブに通されるハンドル軸18を有し、ハンドル軸18の回転を反転して車輪ハブ17に伝達する回転方向反転機構21とを備える。【選択図】図2