| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting device that has excellent rotational stability of a rotary drum-type cutter and that makes a surface cutting appearance proper.SOLUTION: A cutting device for being mounted on a boom of construction machinery includes: a rotary drum that is rotatively controlled. An outer peripheral part of the rotary drum has a plurality of cutting bits, which are arranged in a zigzag pattern in such a manner that cutting edge directions of the cutting bits are inclined by a predetermined angle alternately from side to side in a width direction of the rotary drum. |
