| 摘要 |
The frame has a connection flange projecting laterally into a frame wall below an upper frame edge, resting the frame on a reservoir (2), and fixing the frame in a laterally adjacent floor covering (21). Passage apertures (13) are arranged in a transition region (12) from the connection flange to the frame wall. Cover plates (11) shield the passage apertures to an inner chamber of the frame. The cover plates are arranged on the frame wall and include lower edges running below the passage apertures. The frame wall surrounds the inner chamber of the frame. |
