| 摘要 |
PURPOSE:To securely fix a body to an external box by allowing a screw bar to be protruded from a through hole provided to a ceiling plate, welding the end edge of ceiling plate to the flange part of external box and engaging a cap by screwing to the protruded part of screw bar. CONSTITUTION:Screw bars 15 which become the lifting members are welded with a prescribed interval to the right and left side of upper frame 1a of body 1 and these bars are allowed to pass through the through holes 8a provided to the ceiling plate 8 and are protruded to the upper side of ceiling 8. The lower part of screw bar 15 is engaged with a stopper 16 by screwing located at the lower side of ceiling 8. When the body 1 is inserted to an external box 7, the stopper 16 is first located at the position lower than the height of external box 7. The ceiling plate 8 is placed thereon, a lifting metal 18 provided separately is engaged with the end top of screw bar 15 by screwing and the body 1 is lifted down within the external box 7 using a wire rope 11. A rear ceiling 8 and flange 7b of external box are welded. |
