| 摘要 |
A cover (1), possible to open, carried by a lorry casing (2), is disclosed. The lorry casing comprises an upper frame with a first frame portion (3) and further frame portions (4, 5, 6). The cover (1) is especially characterised in that is provided with one rack rail (7) perpendicularly arranged to the frame portion (3). The rack rail is arranged to co-operate with a gear wheel (9, 12), driven by a driving means, such that the cover is displaced perpendicularly to said frame portion (3) when the gear wheel (9, 12) is rotated, to be brought from a closed substantially horizontal or vertical position to a substantially vertical or horizontal position outside of the lorry casing. A longitudinally transformable link (10) is journalled, connected at one end to one portion of said frame and at the other end to the portion of the cover (1), opposite to said frame portion. The link (10) is retracted when the cover (1) is displaced perpendicularly to the first frame portion (3) and is then elongated and thereby performs a shock-absorbing force, acting against the movement. |
