| 摘要 |
PROBLEM TO BE SOLVED: To mount a heavy shutter with high mounting accuracy and moreover smoothly with high working efficiency. SOLUTION: A lateral pair of angle members 8 are fixed to both right and left side faces of a skeleton opening, while a shutter curtain is wound around a winding drum 2, and support brackets 3 are rotatably supported to both ends to constitute a drum unit U. The center part of the drum unit U is lifted by a forklift truck 12, and while adjusting the attitude of the right and left outside parts of the forklift truck 12 in a lifted state by chain blocks 13, the support brackets 3 are fixed to the angle members 8. COPYRIGHT: (C)2008,JPO&INPIT
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