| 摘要 |
<p>PROBLEM TO BE SOLVED: To make larger a tolerance of each extruded shape to be formed when fitting extruded shapes to each other. SOLUTION: A fitting recessed portion 5 is provided in one extruded shape 1, linking projections 9A, 9B are formed on the inner surface of both the side walls 6, 7 of the fitting recessed portion 5, a fitting projected portion 10 is provided in other extruded shape 2, fitting projected portion 10 is provided from a projected wall 11 extending to the fitting recessed portion 5 side and an upper portion of the projected wall 11 to both the sides respectively, and the portion of a required length at least from the tail end is considered as a downward-outward sloped portions 13A, 13B elastically linking to the linking projections 9A, 9B.</p> |
