PROBLEM TO BE SOLVED: To provide a wheelchair which can be moved in a narrow aisle between seats on an airplane or train.SOLUTION: The wheelchair includes a freely movable front caster 11 on the front and an unmovable rear caster 12 on the rear, and also has a seat section 19, a back rest 20 on the rear of the seat section 19, and arm rests 21 on both sides of the seat section. In the wheelchair, large-diameter main wheels 13 are connected to each other by the axle 26, the axle being detachably pivotally connected. When the axle is detached, the large-diameter main wheels 13 are detached from the wheelchair and the arm rests 23 can be folded.COPYRIGHT: (C)2012,JPO&INPIT【解決課題】本願発明は、飛行機、列車等の座席の間の狭い通路を走行できる車椅子を提供する。【解決手段】前部に回動自在の前部キャスター11と後部に回動しない後部キャスター12を有し、座部19と座部の後部に背もたれ20と、座部の両サイドにアームレスト21を有する車椅子に、車軸26で連結された大径の主車輪13の前記車軸が着脱自在に軸着された車椅子であって、前記車軸を取り外すと大径の主車輪13が車椅子から取り外されると共に、前記アームレスト23が折り畳み可能となることを特徴とする車椅子である。【選択図】図1