| 摘要 |
<p>The device comprises a lever shaped rotary bracket (1) inserted into a support (3) for supporting the prefabricated element (21). The support comprises a seat (2,2a,2b), means (5,6) for connecting the bracket to the seat and the support so as to allow the bracket to rotate between operative and inoperative positions. In the operative position the first part (8) of the bracket projects from the support and positions itself within the seat (20) of the prefabricated element. In the inoperative position the bracket first part does not interfere with the prefabricated element and is completely housed within the seat (2).</p> |
