PROBLEM TO BE SOLVED: To provide a hammer grab which is excellent in safety and does not generate a collision sound.;SOLUTION: A pair of openable-closable shells 27 are provided in a lower end part of a hammer grab body 10. A cylindrical movable frame 18 is slidably incorporated in an inside guide part 16 of a cylindrical body 11 of the hammer grab body 10, and a pulley device 20 in which a shell opening-closing wire rope 23 is stretched between a plurality of moving pulleys 22 incorporated in the inside of its movable frame 18 and a plurality of fixed pulleys 21 incorporated in an upper part of a guide part 16, is provided. The movable frame 18 is moved upward/downward by pulling-up and pulling-down of the shell opening-closing wire rope 23, and a pair of links 29 are provided for opening-closing the pair of shells 27 by interlocking with the lifting movement of the movable frame 18. The pair of shells 27 are closed by pulling-up of the shell opening-closing wire rope 23, and the hammer grab body 10 is pulled up by the continuance of the pulling-up of the shell opening-closing wire rope 23 after the closing of the shells 27, and can be moved to an optional position of the hammer grab body 10.;COPYRIGHT: (C)2015,JPO&INPIT
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