Carrier-positioning device for a vertical blind

A vertical blind comprising:

• a headrail including a top wall, two sidewalls extending respectively and downwardly from two opposite sides of said top wall, and two supporting walls extending respectively from lower ends of said sidewalls toward each other;
• a rotating shaft journalled within said headrail;
• a carrier sleeved movably around said rotating shaft and movable within said headrail along a longitudinal direction of said headrail, said carrier being formed with two fixed horizontal wheel pins that extend respectively and outwardly from two opposite sides thereof, and two wheels sleeved respectively and rotatably around said wheel pins and movable respectively on said supporting walls so as to facilitate movement of said carrier within said headrail;
• a vertical slat suspended from said carrier;
• an end cover attached fixedly to an end of said headrail and including a vertical end wall that has an inner side surface proximate to said headrail;
• and
• a flexible positioning member having a fixed end connected fixedly to said end cover, a hook end opposite to said fixed end, and an operable portion disposed between and connected fixedly to said fixed end and said hook end, said hook end including two hooks, each of which is formed with a vertical retaining slot that has a closed upper end and an open lower end and that engages a respective one of said wheel pins so as to prevent movement of said carrier within said headrail, said operable portion of said positioning member having an exposed section that is exposed within a space between said supporting walls of said headrail and that is disposed below said rotating shaft so that said operable portion of said positioning member can be pushed upwardly to remove said hooks of said positioning member from said wheel pins, thereby permitting separation of said carrier from said end cover.