| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a center-of-gravity variable device for an excavator, which can effectively increase excavating force.SOLUTION: A center-of-gravity variable device 100, which is mounted on an excavator 5 comprising a self-traveling travel body 6, a swivel body 7 that swivels above the travel body 6, and an excavating body 10 provided in front of the swivel body 7 to perform excavation work, is composed of turn weights 50 and 60 that have centers of gravity M1 and M2 in positions away from a rotational central axis O by a predetermined distance, are provided between the travel body 6 and the swivel body 7, and rotate relative to the travel body 6 or the swivel body 7.</p> |
