| 摘要 |
System uses two types of extruded section which may be assembled with a minimum of tools to form a rectangular wall frame. The first section type (1) is H-shaped and has on the inside edge of each side wall a projection (5) which engages behind the hooked end (9) of a section of the second type (2, 2"). External ribs (6) projecting from the outer surface of the first type of section (2) serve for perpendicular coupling of the two types of section. Type two sections may thus be used to join type one frame members either in alignment of perpendicularly. Cross walls (10) insecfions of the second type (2) are attached at one end only and are inclined when manufactured. When bent straight, as shown, they serve to lock the coupling. |
