| 摘要 |
PROBLEM TO BE SOLVED: To improve durability and reliability of a nozzle switch provided on a nozzle hook of a meter. SOLUTION: A permanent magnet 11 as a detected member is embedded in a guard member 4 of a pump nozzle 1. A nozzle hook 5 is equipped with a reed switch 12 serving as a nozzle switch to detect the permanent magnet 11 without contact. The reed switch 12 is provided at a position opposite to the permanent magnet 11 provided on the guard member 4 when the pump nozzle 1 is mounted on a mount 5a of the nozzle hook 5. The reed switch 12 is closed by a line of magnetic force from the magnet 11 to output a detection signal when the pump nozzle 1 is mounted on the mount 5a of the hook 5. In addition, when the nozzle 1 is disengaged from the mount 5a of the nozzle hook 5, as the permanent magnet 11 is separated, the reed switch 12 is opened to stop outputting the detection signal.
|
