| 摘要 |
The cover includes at least one telescoping cover unit (5, 6) and at least two cover elements (8, 9) movable by a concertina lattice gate (10, 11, 12, 13) with pivoted bars (14, 15, 16, 17) connected to each other by pivots running crosswise to the lattice gate. There is at least one guide (18, 19) acting with the lattice gate. |
