| 摘要 |
PROBLEM TO BE SOLVED: To form dropping prevention means which securely performs dropping prevention when a drawer type device is drawn and is easily stored when the drawer type device is stored.SOLUTION: A metal closing type switch gear includes: a main shaft 5a; a drawer type device 3 having a wheel 6a provided at the main shaft 5a; a floor plate 8 on which the drawer type device 3 moves; a pair of guides 9b which is fixed to the floor plate 8 and where the wheel 6a moves at the inner side thereof; and a box having dropping prevention means provided in at least one of the guides 9b. The dropping prevention means includes a stopper 10 which is restricted from rotating; and a drawing prevention pin 11 with which the stopper 10 is engaged. When the drawer type device 3 is drawn, the stopper 10 engages with the drawing prevention pin 11. When the drawer type device 3 is stored, the stopper 10 gets over the drawing prevention pin 11. |
