| 摘要 |
PROBLEM TO BE SOLVED: To cover all side surfaces of a bed in which an article being caught or a person being caught or dropped can be prevented. SOLUTION: A rail part 11 is composed of a first and a second rail parts 13, 14 connected to each other to be capable of folding. In the meantime, a leg part 12 comprises support pole pipes 12a-12d extended vertically. Nuts 17 are engaged and welded with opened ends of the support pole pipe 12a and the support pole pipe 12d positioned on the outer side, they are inserted to rail bearing pipes on a side frame, and they are tightened and fixed by wing bolts. |
