| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase earthquake-resistant strength of a hanging frame while suppressing an increase in cost.SOLUTION: Each hanging frame 25 includes a U-shaped cross-section hanging frame body 31 to which upper and lower frames 26 and 27 are connected, and a U-shaped cross-section reinforcement body 32 for reinforcing the hanging frame body 31. The reinforcement body 32 is fixed to the hanging frame body 31 by welding or bolting. Additionally, the reinforcement body 32 is arranged in such a manner as to embrace the hanging frame body 31 from the outside. In other words, the reinforcement body 32 overlaps each of outer surfaces of lateral, front and back parts of the hanging frame body 31.</p> |
