| 摘要 |
PROBLEM TO BE SOLVED: To carry out cutting, crushing, and drilling by one attachment. SOLUTION: This attachment A is provided with a first frame 20 installed in a main body frame 5, a second frame 10 installed in the main body frame 5 at a position opposed to the first frame 20, cutters 12 and 22 respectively installed on the opposite sides of the first frame 20 and the second frame 10, and crusher tips 11 and 21 installed on the opposite sides of forward end parts of the first frame 20 and the second frame 10, respectively, and is constituted to rotate either or both of the first frame 20 and the second frame 10 and to be operated by meshing of the first frame 20 and the second frame 10. In this case, a hydraulic breaker 40 is provided in either first frame 20 or the second frame 10, and a track chisel 41 is installed on the tip end of the frame provided with this hydraulic breaker 40.
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