Abrégé

A roller assembly is provided for connection behind a towing vehicle, for example a road grader vehicle. The roller assembly includes a frame supporting a plurality of walking beams extending generally in the forwarding working direction of the grader with packing rollers supported at each end thereof. Each walking beam is centrally pivoted on a support arm which is in turn pivoted on the frame to permit each pivot of each walking beam to be moveable generally upwardly and downwardly in relation to the pivots of the other walking beams. A common hydraulic circuit is arranged to provide a common downward force to the pivots of the walking beams. Pivoting movement of the walking beams accommodates for varying ground contours in the longitudinal direction while independent upward and downward movement of the walking beam pivots relative to one another permits accommodation of varying ground contours in the lateral direction.

Classes IPC  ?

• A01B 29/06 - Rouleaux comportant des dispositifs accessoires particuliers
• E01C 19/29 - Appareils de cylindrage conçus pour appliquer une pression de cylindrage inférieure à leur poids, p. ex. rouleaux finisseurs se déplaçant sur des rails-guides
• E01C 19/27 - Rouleaux à cet effetRouleaux semblables pouvant également être employés pour compacter le sol avec éléments de cylindrage déformables par élasticité, p. ex. des pneumatiques