| 摘要 |
<p>A tiltable earthworking tool (10) has a pair of spaced arcuate guide members (20, 21, 47, 48) with the centre of radius being on a pivot (13, 51) on the tool defining the tilting axis. Mounting means (22, 41) on an earth-working machine to mount the tool has a mount plate mounted at its centre on the pivot pin and guide followers (23, 48, 47) adjacent its ends received in the arcuate guide members. A hydraulic ram (25, 42) is mounted on the tool and its piston connected to the mounting plate to enable the tool to be tilted about the tilting axis relative to the machine.</p> |
