| 摘要 |
<p>A cover apparatus for a container (11) having a generally rectangular opening (12) therein, said opening (12) having four edges (13,14,16,17), said apparatus comprising roller means (21) for extending between a first edge (13) and the opposite, second, edge (14) a cover comprising two cover sections (22, 26), said roller means mounting a first edge (23, 27) of each of said tow cover section (22, 26), the second edge (24, 28) extending to the third and fourth edge (16, 17) said roller means being connected to resilient means (40) to roll from a position intermediate said third (16) and fourth (17) edges of the opening (12) when said cover is closed to a position adjacent said third edge (16) when said cover is open, said second edge (28) of the second cover section (26) being connected by arm means (36, 37) connected to rotate by a rack (30) and pinion (31) drive means between a first position in which said second edge (28) is adjacent said fourth edge (17) of the opening (12) to a second position adjacent the third edge (16) of said opening (12).</p> |
