| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stroller for allowing only front side wheels in the advancing direction to rotate around the vertical line axis, even in either case of a back face hand-push state and an opposed face hand-push state. <P>SOLUTION: Vertically slidable lock members 47a and 47b are provided at side parts of caster holders fixed to lower parts of front legs 12 and rear legs 14 respectively; recessed parts 45a and 45b to which the lock members are selectively engaged when front wheels 11 or rear wheels 13 turn to a caster shafts in the straightly advancing direction, are provided; lead wires 50a and 50b of which both end parts are connected to the front leg side and rear leg side lock members respectively, and are inserted into the front leg and the rear leg, are provided; the above lead wires inserted into the front leg and the rear leg are connected to a lock switching operation member 54 slidably installed on the front leg and a connecting tool 51 vertically movable with the lock switching operation member 54 in the front leg; and the front wheel side lock member 47a or rear wheel side lock member 47b is selectively engaged with the recessed part 45a or 45b arranged on the corresponding caster shaft by sliding the lock switching operation member 54. <P>COPYRIGHT: (C)2012,JPO&INPIT |
