| 摘要 |
The support wheel device uses an articulated so-called grid (6) for raising and lowering the plough. On an articulated lifting arm (16) is a piston-cylinder unit (22) and a telescopic device (27), which with lifting force can be applied to the grid for lifting the plough whilst a support wheel (32) is placed against the road surface and for extending a telescopic arm (29) connected with the wheel. By drawing in the piston-cylinder unit piston rod (24) and the telescopic arm the plough can be positioning against the road surface and the support wheel raised. |
