| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction machine capable of preventing a boom from being swung in tilting in which a working means such as a bucket is rotated upward. SOLUTION: This construction machine comprises a boom 3 swung by the driving of a boom cylinder 10 and a working machine 2 having the working means S such as the bucket 4 fitted to the tip side of the boom 3 and swung by the driving of a tilt cylinder 16. A switching is allowed between a running damper mode for absorbing the vibration of a vehicle body in running by an accumulator 31 connected to the hydraulic line of the boom cylinder 10 and a non-running damper mode for shielding the boom cylinder 10 from the accumulator 31. When the tilt cylinder is driven, the non-running damper mode is used. COPYRIGHT: (C)2004,JPO
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