| 摘要 |
<p>The door leaf or casing frame comprises hollow sections (7, 8) and T-pieces (12a, 13a, 17a), assembled by a linking means. The hollow sections are in particular made of plastic reinforced longitudinally by fibers. In the linking joints or mitre joints (15, 15a) of the corners of the frame is arranged a joint plate (16) provided with passages for the linking means which is integrated with the T-pieces (12a, 13a) and the joint plate (16). In order to manufacture the frame, a glue or a bonding material is injected through the passages of the joint plate (16) into the gap located at the corners of the frame.</p> |
