| 摘要 |
PROBLEM TO BE SOLVED: To provide a power shovel having a bucket with a vibrating rolling plate providing special effect in driving piles, compacting the ground, completely removing clinging matter such as clay in the bucket. digging using the vibration of the tip of the bucket, and uniformly mixing earth and sand, etc. SOLUTION: A hydraulic reciprocating vibrating cylinder 20A is rotatably attached to a bracket 121A secured to a bucket back plate 12A and the rolling plate 30A is rotatably attached to a bucket bottom plate 11A, with the rear end of the piston rod 22A of the cylinder 20A being rotatably attached to the rolling plate 30A.
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