LEG FIXER FOR JACK-UP TYPE WORKING SHIP

PURPOSE:To reduce the weight of legs by a method in which a slot is provided to the side of a rack to vertically move support legs while engaging with a pinion attached to the hull side and also a crosswise moving bar coupling with the slot is provided to the hull side. CONSTITUTION:A slot 10 consisting of thick plates 8 is provided to the side of a rack 3 to vertically move support legs 1 consisting of cords 2 while engaging with a pinion attached to the hull side, and a crosswise moving bar 12 coupling with the slot 10 is provided to the hull side. In towing a working ship, the legs 1 are raised up to a given position on the hull and then a jack 14 is energized, whereupon the bar 12 moves in sliding manner a guide 9 and thick plates 3 while slightly pressing its tip on the guide 9 and is inserted into the slot 10 at a fixed position. Thus, the legs 1 are fixed to the hull. Since most of great bending moment applying to the legs are transmitted through the slot and the bar to the cords and hull as an axial force, the increment of the leg cross section area can thus be lessened.