| 摘要 |
PROBLEM TO BE SOLVED: To prevent a wiring appliance frame attached to an electrical appliance box via the opening of a partition wall from being warped and deformed due to tightening of screws. SOLUTION: Screw bosses 10 are integrally formed on the respective inner surfaces of the 1st and 2nd sidewalls 3 and 4 of a box main part 1. Saw contact walls 15 are made to protrude from positions close to both the respective end parts of 2nd and 4th sidewalls 5 and 6 towards nearby insertion opening regions 11, 12, 13 and 14. A hand-held saw 20 is brought into contact with the saw contact walls 15, before it is put into the insertion opening regions 11, 12, 13 and 14. With this constitution, an opening which enables the coverage of the upper parts of the screw bosses 10 and the upper parts of the insertion opening regions 11, 12, 13 and 14 with a face board 19 can be formed in the face board 19. Since both side parts of the parts of the wiring appliance frame, which are tightened by tightening screws, can be backed and supported by the face board 19, the warpage and deformation of the wiring appliance frame due to the screw tightening pressure can be avoided. |
