| 摘要 |
PURPOSE: To facilitate folding and opening from a folded state by attaching rear wheels to the rear end parts of left and right frames and supporting them so as to be parallel to the center line of an unfolding movement angle when the left and right frames are fixed to a fixed unfolding movement angle. CONSTITUTION: In the case of returning this walking helping tool 1 in the folded state to a usable state, when left and right handles 3 are grasped and pushed forward, the left and right rear wheels 26 and 27 start to move and the left and right frames 5 and 6 start to open with an opening/closing axis as a center. Also, a left and right connection member 23a starts to rotate with the opening/ closing axis as the center and the end parts on the center side of a left part lock bar 19 and a right part lock bar 20 respectively start to rotate forward. When the lock bars 19 and 20 become straight and the projection of the left part lock bar 19 is brought into contact with the rear surface of the right part lock bar 20, the left and right rear wheels 26 and 27 are completely turned to the front and the positions of the left and right frames 5 and 6 are fixed as well. |
