| 摘要 |
<p>The device includes at least one telescoping bar (2, 3; 2', 3') extending across a wall opening, at least one complementary module (10a, 10b) consisting of U-sections (11a, 11b) joined by rods (13), and a locking module (18) consisting of U-sectiosn joined to rods (13). Said complementary module's U-sections (11a-11b) are shaped to fit onto the bars (2, 3; 2', 3') and engage these by means of a tongue-and-groove system. The U-sections of the locking module (18) are shaped to fit onto said bars (2, 3; 2', 3') and the adjacent ends of the complementary module's U-sections. A lock locks each of the locking module's U-sections onto its respective bar (2, 3; 2', 3').</p> |
