| 摘要 |
PURPOSE: To protect the inner door against damage due to collision against the outer door of an adjacent switchboard at the time of opening by a structure wherein a first hole is aligned with a third hole made through the inner door when the inner door is stopped by a stopper pin contained in a stopper pin containing part and the stopper pin is inserted into the first and third holes. CONSTITUTION: A stopper 7 fixed to the case 1 of switchboard is provided with a stopper pin containing part 8 and a first hole 9. The stopper pin containing part 8 contains a stopper pin 5 retractively and the stopper pin 5 stops an opened inner door 2 within such range as the inner door 2 does not collide against the opened outer door 6 of an adjacent switchboard. When the inner door 2 is stopped by the stopper pin 5 contained in the stopper pin containing part 8, the first hole 9 is aligned with a third hole made through the inner door 2 and the stopper pin 5 is inserted into the first and third holes 9, 11. This structure protect the inner door 2 and the outer door 6 of an adjacent switchboard against damage due to collision at the time of opening. |
