| 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 mounted on an excavator 5 comprises a first turntable 40 the upper part of which, when its lower part is positioned in parallel with a horizontal plane, tilts relative to the horizontal plane, and which is connected on a travel body 6 side for rotation and a second turntable 50 provided above the first turntable 40 and the lower part of which, when the upper part is positioned in parallel with the horizontal plane, tilts relative to the horizontal plane, and which is connected on a swivel body 10 side for rotation. The first turntable 40 and the second turntable 50 rotate relatively each other and tilt the swivel body 10 relative to the travel body 6.</p> |
