| 摘要 |
PROBLEM TO BE SOLVED: To improve a working property of fixing work by providing a C- shaped frame having receiving surfaces for receiving the outer edges of the bottom surfaces of panel structures on both sides of the open part thereof and mounting structures having a continuous irregular form within the planes of both longitudinal vertical surfaces thereof. SOLUTION: This lengthy frame 1 having a C-shaped square tubular end surface has an open part 3 in the center of the upper surface. The frame 1 has receiving surfaces 4, 4 for receiving the outer edges of the bottom surfaces of flat panel structures 2, 2 on both sides of the open part 3. It also has flanges 7, 7 longitudinally continued as mounting structures within the planes of both longitudinal vertical surfaces 5, 5. The mounting structure may have a form of streak groove, recessed part, or protruding part. The C-shaped frame 1 capable of housing an electric wiring in the inner part can be improved so that the fixing work can be facilitated. |
