| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of an opening frame formed in a simple structure and installable in an opening part provided at the various positions of a wall having fire resistant boards installed on a wall body. SOLUTION: Opening frame members 2A to 2D of generally T-shape in cross section formed by joining a projected part 2t having a width of (L<SB>21</SB>-L<SB>11</SB>) in one side direction to a one side and an opposed side of a rectangle having the length of the one side length L<SB>21</SB>longer than L<SB>11</SB>(see below) and the length L<SB>22</SB>of the other side adjacent to one side generally equal to the thickness T<SB>w</SB>of the wall body W so that both side faces thereof in the projected direction are flush with the other side adjacent to one side are fitted to the wall body W. A depth frame material 1 of generally L-shape in cross section formed by joining a projected part 1t having a width in one side direction of (L<SB>11</SB>-T<SB>b</SB>) to one side of a rectangle having the length L<SB>11</SB>of one side longer than the thickness T<SB>b</SB>of a fireproof plate B so that the side face thereof in the projected direction is flush with the other side adjacent to one side is inserted between the projected part 2t of the opening frame members 2A to 2D and the fireproof plate B. COPYRIGHT: (C)2004,JPO
|
