| 摘要 |
PROBLEM TO BE SOLVED: To provide a striking type rock breaker capable of performing a series of work of combining an arrow and a blade of a push-out arrow, inserting the push-out arrow into a rock breaking hole, striking the arrow and recovering the push-out arrow, and mounted to various working machines to efficiently and safely perform rock breaking work for any rock-bed. SOLUTION: The push-out arrow 3 formed of the combination of the arrow 8 and the blade 9 is mounted to a hydraulic breaker 2 by a push-out arrow box 4 to form integrated structure so that the arrow 8 is movable by a predetermined distance in an axis Y direction, to mechanically perform a series of work of inserting the push-out arrow 3 into the previously bored rock breaking hole, pushing in the arrow 8 to widen the blade 9 and recovering the push-out arrow 3 after striking the arrow 8 with a piston 7 to break a rock. COPYRIGHT: (C)2006,JPO&NCIPI
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