| 摘要 |
PROBLEM TO BE SOLVED: To provide a sub closing device that is free of a risk of half opening or full opening of a sub shutter even if a fuel feed nozzle having a small diameter is inserted.SOLUTION: There is provided a sub closing device 2 comprising: an upper-stage base 22 and a lower-stage base 23 provided with an upper-stage through hole 221 and a lower-stage through hole 231; a first link arm 24 which swings around a link swing shaft 222 provided on the upper-stage base 22; a second link arm 25 which swings around an arm connection shaft 243 provided on the first link arm 24 and is energized to approach the upper-stage through hole 221; and a left shutter 26 and a right shutter 27 which swing around a left swing shaft 233 and a right swing shaft 234 provided on the lower-stage base 23. The first link arm 24 and second link arm 25 protrude a first trigger projection 242 and a second trigger projection 252 to the upper-stage through hole 221, and the second link arm 25 and left shutter 26 have a link interlocking cam groove 251 and a link interlocking pin 266 engaged with each other. |
