| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic pressure bucket capable of maintaining a stable holding force of the bucket by suppressing the rise of the temperature of the operating oil, even though the opening and the closing operation of the bucket is carried out at a high frequency. SOLUTION: In a hydraulic pressure bucket in which the opening and the closing operation of the bucket is carried out by operating a bucket cylinder 1 by the operating oil fed from a hydraulic pump 3, a cooling device 7 to cool the operating oil is provided to a hydraulic pressure circuit to feed the operating oil to the bucket cylinder 1.
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