[Problems] The front wheels mounted horizontally turnable relative to the lower end of the front frame, wheels fixed in the walker that can be securely fixed to the state that the direction that coincides with the longitudinal direction of the car body It will provide a mechanism. The A front wheel 3a, and attached to the lower end portion of the front frame 3 via the supporting members 8 and 9, the rear wheels, in the walking wheel attached to the lower end of the rear frame, the wheel securing mechanism 11 Operate turning the operating lever 14 to rotate a fixed direction L, a locking pin 12 which is housed in the pin accommodation portion 93 of the upper support member 9 so as to protrude from the pin protrusion hole 93b downwards, facing the pin protrusion hole 93b located It engages the locking hole 83 of the lower support member 8 rotated and moved in. Thus, since each other supporting members 8 and 9 is fixed to rotate relative rotation impossible, the front wheels 3a mounted horizontally turnable relative to the lower end of the front frame 3, a longitudinal direction X of the walking wheel it is possible to rotate fixed state for the matching direction. .BACKGROUND【課題】前部枠体の下端部に対して水平旋回可能に取り付けた前部車輪を、車本体の前後方向と一致する方向に向けた状態に確実に固定することができる歩行車の車輪固定機構を提供する。【解決手段】前部車輪3aを、支持部材8,9を介して前部枠体3の下端部に取り付け、後部車輪を、後部枠体の下端部に取り付けた歩行車において、車輪固定機構11の操作レバー14を回転固定方向Lへ回動操作し、上部支持部材9のピン収容部93に収容した係止ピン12をピン突出孔93bより下方に突出して、ピン突出孔93bと対向する位置に回転移動した下部支持部材8の係止孔83に係合する。これにより、支持部材8,9同士が相対回転不可に回転固定されるため、前部枠体3の下端部に対して水平旋回可能に取り付けた前部車輪3aを、歩行車の前後方向Xと一致する方向に向けた状態に回転固定することができる。【選択図】図6
