| 摘要 |
This invention relates to an apparatus for motor-driven machines, intended for levelling of gravelled roads and comprising a scraping blade which is intended to work the surface layer of the gravelled road so that a gravelled row is created, and a device for spreading the gravelled row, comprising a blade for spreading the gravelled row, which blade is intended to level out gravelled row created by the scraping blade, the scraping blade and the row spreading blade being adjustably arranged so that they can be raised or lowered in relation to the roadway. According to the invention the apparatus is so constructed that row spreading blade (13) is pivotable in the vertical plane, i.e. can pivot about an essentially horizontal axle. At least one sensor means (17) is arranged for detecting the material quantity of the gravelled row, this means in dependence upon the material quantity being intended to influence a first means (18), cooperating with the row spreading blade (13), for raising and lowering the same (13). |
