公开(公告)号：EP0342189A1

公开(公告)日：1989-11-23

申请号：EP87906113.0

申请日：1987-09-22

申请人： NORDTILLER, Torbjörn ,  ROD, Einar

发明人： NORDTILLER, Torbjörn ,  ROD, Einar

IPC分类号： E01C23 ,  E02F3

CPC分类号： E02F3/76 ,  E01C23/085

摘要： A grader, designed for use with a tractor, with a leveller blade (11) mounted at the front of the direction of travel, and two toothed blades (23, 24) located laterally behind the leveller blade (11). These toothed blades are designed to swivel to and fro mainly along their longitudinal axes in a counteracting motion. The pivot mechanism consists of a pivot (20) which is linked at each end to the respective toothed blades (23, 24) and is freely supported on a drive axle (19). The grader preferably incorporates a harrow (33) which is located behind the toothed blades (23, 24) and the smoothing equipment (29) to the rear.