EXTRACTION MACHINE FOR WEDGE TYPE ANCHOR CLAMP AND EXTRACTION EXECUTION METHOD THEREOF

PROBLEM TO BE SOLVED: To provide an extraction machine and an extraction execution method with good workability for extracting one wedge of a wedge type anchor clamp for towing an overhead transmission line to a steel tower.SOLUTION: An extraction machine 100 comprises: a cylinder 10 having a hydraulic pressure introduction port 20 and a plunger 15; a first block 30 having a block body 31 and a fall prevention plate 35 to be attached to one wedge 70; and a second block 40. The cylinder 10 is fixed to the block body 31, the second block 40 is fixed to a tip of the plunger 15, and the second block 40 and block body 31 are inserted between a clamp applied plate 55 and a projection portion 75 of the one wedge 70 to fix the block body 31 to the one wedge 70 with the fall prevention plate 35. Force generated by pushing out the plunger with hydraulic pressure from the hydraulic pressure introduction port 20 presses the clamp applied plate 55 via the second block 40 and force of reaction thereof pushes back the projection portion 75 of the one wedge 70 via the block body 31 of the first block 30, so that the one wedge 70 is drawn out of a wedge type anchor clamp body 50.