PROBLEM TO BE SOLVED: To provide a compact and sufficiently-high walking aid vehicle on Road Traffic Act, enabling walking without bending a waist, and not requiring a large space for storage.SOLUTION: In a walking aid vehicle, the whole vehicle body is constituted in an X-shaped type as a method for expanding a vehicle width, and such a structure is adopted that the X-shape can be deformed into a longitudinally long shape or a laterally long shape by fulcruming an intersection point between X-shaped two line segments to thereby rotate the segments, and the vehicle width can be reduced by one touch operation to thereby dispense with a large space for storage. Easy walking is possible without bending a waist by keeping the height of handles. As advantages, reduction of damage of a traffic accident, prevention of rolling walking, safe feeling of another passenger, installation of an umbrella or a parasol thereon, or the like can be enumerated.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】腰を曲げないで歩、コンパクトで収容に場所を取らず、高さが十分な、道路交通法上の歩行補助車を提供する。【解決手段】車幅を広げる方法として、車体全体をX字型に構成し、X字の2線分の交点を支点として線分を回転させ、縦長や横長のX字に変形する構造とし、ワンタッチで車幅を縮小して、収容に場所を取らない。ハンドルの高さを保ち、腰を曲げないで歩けるので楽になる。利点として、交通事故の被害の軽減、横振れ歩行の防止、他の通行者の安心感、雨傘日傘の設置、等があげられる。【選択図】図3