| 摘要 |
PROBLEM TO BE SOLVED: To provide a hatch cover lifting device for improving cost, and facilitating maintenance.SOLUTION: The hatch cover lifting device is provided for lifting a hatch cover constituted so as to open-close two panels 51 and 52 when opening-closing, by making wheels 1a, 1b, 2a and 2b travel on a travel rail 3 arranged in parallel to the outside of a hatch, by providing at least respectively each two wheels 1a, 1b, 2a and 2b per one side, on respective both sides of opposed two panels 51 and 52 for covering the hatch, and comprises a first link mechanism 10 for simultaneously lifting a plurality of wheels 1a and 1b provided on one side of the one panel 51 between a travel position and a non-travel position of the travel rail 3, a second link mechanism 20 for simultaneously lifting a plurality of wheels 2a and 2b provided on one side of the other panel 52 between the travel position and the non-travel position of the travel rail 3 and a cylinder mechanism 4 for expansively driving by connecting the first link mechanism 10 and the second link mechanism 20. |
