| 摘要 |
In a drive means for hatch covers of the type in which hatch cover sections are movable laterally or longitudinally by means of a rack arranged beneath the hatch cover section, said rack co-operating with a drive motor located externally of the hatch coaming, the improvement that the drive means includes two pinions, one of which in the closed position of the hatch cover engages a rack element on the outside of the hatch cover section, while the other pinion is arranged to co-act with the rack subsequent to a limited movement of said hatch cover section, and which rack extends at most to a hatch packing inserted in the lower surface of the hatch cover section. |
