| 摘要 |
<p>A composite framing profile for assembly frames, formed by the coupling of an outer metal element (2), an inner wooden element (26) and an intermediate plastics element (32) connecting the two other elements, characterised in that: the intermediate plastics element (32) is provided with two wings (42, 64, 66) converging towards corresponding wings (14, 16) of the metal element (2) and snap engageable with these; the snap engagement between the respective wings is obtained through a rib (22) provided on the internal wall of each metallic wing (14, 16) and cooperating with a complementary groove (46) provided on the external wall of the plastics wing (42, 64, 66); means are provided to keep said plastics wings (42, 64, 66) in pre-loaded condition when the intermediate plastics element (32) is coupled to the metal element (2).</p> |
