Motor road roller

Abstract

The invention relates to a motor-driven pavement roller having rigid supporting frame ( 1 ) that is braced on a pair of operating tools, and at least one of these operating tools is pivotable and is connected to a -shaped frame ( 7 ), and the -shaped frame ( 7 ) is connected to rotary axes, which are perpendicular to one another, of the operating tool and of a pivot shaft ( 9 ), and the pivot shaft ( 9 ) serves to pivot the operating tool relative to the supporting frame ( 1 ). To enable increasing the working output of the pavement roller and widening the roller pivot angle, the invention provides that the axes of the operating tool are mounted in intersecting fashion on the -shaped frame ( 7 ).

1 . A motor-driven pavement roller having a rigid supporting frame, which is braced from below on a pair of operating tools, and an operating tool of these is pivotable and is enclosed in a U- or  -shaped frame, and a crossbar of the frame is connected to the supporting frame by means of a joint having a vertical pivot shaft, characterized in that
 the frame is disposed horizontally, so that the crossbar is located on the outside and is coupled to a front part of the supporting frame.   
     
     
         2 . The motor-driven pavement roller of  claim 1 , characterized in that
 the front part of the supporting frame, which front part is coupled to the frame, is disposed displaceably back and forth in the travel direction of the motor-driven pavement roller relative to the middle part of the supporting frame.   
     
     
         3 . The motor-driven pavement roller of  claim 1 , characterized in that
 an operating tool includes a pair of dissimilar rollers.   
     
     
         4 . The motor-driven pavement roller of  claim 3 , characterized in that
 the pair of dissimilar rollers is combined in a carriage with the aid of a pair of lateral beams.   
     
     
         5 . The motor-driven pavement roller of  claim 4 , characterized in that
 the middle part of each lateral beam is coupled to the frame by means of a joint having a vertical pivot shaft, and the frame is in turn coupled to the front part of the supporting frame, and the carriage is mounted pivotably about a horizontal axis of the joint.   
     
     
         6 . The motor-driven pavement roller of  claim 5 , characterized in that
 the lateral beams are disposed between the legs of the frame.   
     
     
         7 . The motor-driven pavement roller of  claim 1 , characterized in that
 both operating tools are pivotable.   
     
     
         8 . The motor-driven pavement roller of  claim 1 , characterized in that
 the end of the supporting frame is connected to the pivot shaft and mounted such that it is displaceable back and forth in the travel direction of the pavement roller relative to the remainder of the supporting frame.   
     
     
         9 . The motor-driven pavement roller of  claim 1 , characterized by
 a steering mechanism for an operating tool that is pivotable about a steering axle, the operating tool including two hydraulic cylinders disposed in opposite directions obliquely to a longitudinal axis of the supporting frame of the motor-driven pavement roller, and per hydraulic cylinder:
 a first end is connected in articulated fashion to the supporting frame about an articulated axle extending parallel to the steering axle, and 
 a second end is connected to the frame in articulated fashion about an articulated axle extending parallel to the steering axle, on opposite sides of the frame from the steering axle.