PROBLEM TO BE SOLVED: To lock orientations of front wheels different from the folding operation of a support column, to secure both the stability of linear advancing walking and the stability of self-erected states, and to facilitate operation.SOLUTION: This walking auxiliary machine comprises: a pair of wheel frames 6 attached with casters being the front wheels 4 a base supported to a pair of the left and right wheel frames 6 the support column attached to the base so as to be foldable and a locking implement 34 for fixing the orientations of the front wheels 4. The front wheels 4 are attached to the wheel frames 6 so as to abut on the ground in the self-erected states that the front wheels 6 are erected while making their front ends 6a contact with the ground by folding the support column, the locking implement 34 has a linear advancing lock state that the orientations of the front wheels 4 are locked to orientations in which the wheels linearly advance in walking states, and a self-erecting lock state that the orientations are fixed to orientations in which the wheel frames 6 are supported, and the two lock states can be operated by one operation unit 30.COPYRIGHT: (C)2013,JPO&INPIT【課題】支柱の折り畳み動作とは別に前輪の向きをロックする。直進歩行の安定性と自立状態の安定性との両方を確保する。操作を簡単にする。【解決手段】前輪4となるキャスタが取り付けられている左右一対の車輪フレーム6と、左右一対の車輪フレーム6に支持されるベースと、ベースに対して折り畳み可能に取り付けられた支柱と、前輪4の向きを固定するロック手段34とを備え、前輪4は、支柱を折り畳んで車輪フレーム6をその前端6aを接地させながら起立させた自立状態で地面に当たるように車輪フレーム6に取り付けられており、ロック手段34は、前輪4の向きを歩行状態における直進する向きに固定する直進ロック状態と自立状態で車輪フレーム6を支える向きに固定する自立ロック状態とを有すると共に、2つのロック状態を1つの操作手段30によって操作可能にしている。【選択図】図7
