| 摘要 |
<p>The method involves engaging two lifting cylinders (26, 41) with lifting arms (34, 48) for transmitting load to lower and upper rotatable brackets (16, 18), where the lifting cylinders are arranged independent to each other. The lifting cylinders are arranged on the rotatable brackets and charged by pressure for discharging a closing movement of the rotatable brackets from an opening position (21). One of the lifting cylinders is charged by the pressure and other lifting cylinder is charged by the pressure, during closing movement and pressure force increment. An independent claim is also included for a hydraulic cultivating device for breaking-off, crushing and recycling a structure.</p> |
