| 摘要 |
PROBLEM TO BE SOLVED: To make an interlock device operate without fail even when a power supply for an operation is off, by joining a stopper to a link mechanism interlocking with a breaker part and by making this stopper engage with the base side at the time when the breaker part is in a closed state. SOLUTION: When a breaker part is closed, an operating rod 24 lowers, interlocking with the breaker part. Then a stopper 21 at the lower end of the operating rod 24 comes to a position of a dotted line and the right-and-left movement of a truck 8 stops. When the breaker part is opened, on the other hand, the stopper 21 rises and the truck 8 becomes movable right and left freely. Since an interlock device operates mechanically completely according to this constitution, a disconnector part is not closed at all even when a power supply for an operation is off, only on condition that the breaker part is in a closed state. |
