| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lock mechanism 40 of simple structure capable of surely operating an opening/closing member 31 to open and close depending on the kind of a fuel supply nozzle FZ in regard to an opening/closing device 10 for a tank. <P>SOLUTION: The lock mechanism 40 is assembled in an opening/closing member 31 of a shutter mechanism 30 pivotally supported by a tank opening forming member 11. The lock mechanism 40 has an inside diameter positioning part 42a of a nozzle guide part 42, a lock releasing part 44c, and a lock member 44. The inside diameter positioning part 42a having an outside diameter D1 slightly smaller than the inside diameter Da1 of the fuel supply nozzle FZ positions the fuel supply nozzle FZ by projecting into a nozzle opening FZa of the fuel supply nozzle FZ. The lock releasing part 44c is pushed by the fuel supply nozzle FZ positioned by the inside diameter positioning part 42a, and transfers the lock member 44 from a lock position to a non-lock position in conjunction with the pushing operation of the fuel nozzle FZ. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
