PROBLEM TO BE SOLVED: To provide a spud elevating device capable of efficiently elevating a spud.;SOLUTION: A spud frame 3 is fixed on a hull 1, plural protrusions 8 disposed at an interval in an axial direction along an outer circumference of a spud 7 inserted into a spud inserting hole 6 in the spud frame 3 are provided at an interval in a circumferential direction, and a tapered part 8a is provided at an upper end part of each protrusion 8. A movable cursor 10 freely elevatable along the spud 7 and composed to be elevated by a cylinder is disposed on the spud frame 3. A lock mechanism 20 to prohibit lowering of the spud 7 by engagement of a stopper 22 to a lower end of the protrusion 8 is provided on the movable cursor 10 and the spud frame 3. The stopper 22 of the lock mechanism 20 is pressed by an elastic member toward the outer circumference of the spud 7, so the spud 7 is lifted by elevating motion of the movable cursor 10 as the stopper 22 of the lock mechanism 20 provided on the spud frame 3 is at an engagement position.;COPYRIGHT: (C)2001,JPO
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