| 摘要 |
PROBLEM TO BE SOLVED: To arrange a branch pipe on a cross arm without taking reinforcing measures. SOLUTION: This rack is provided with front and rear struts 2, cross arms 3 projecting right and left from the front and rear struts 2, and a shelf support 4 connecting the end parts of the front and rear cross arms 3. In the rack, a water supply pipe 6 is arranged in the vertical direction and in front of the front strut 2, while a sprinkler head 7 is arranged between the front and rear cross arms 3. A branch pipe piercing part allowing a branch pipe 61 to pass from the water supply pipe 6 to the sprinkler head 7 is formed at the left end part of the cross arm 3 on the supply-water-pipe 6 arranged side.
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