Patent ID: 6131821
Filing Date: 2000-10-17
Classification: A01M

Abstract:
An agricultural appliance transportable on a land vehicle, comprising:a boom construction extendable in a direction perpendicular to travel of the land vehicle and having a central portion;a support construction mountable on the land vehicle and arranged parallel to the boom construction;a suspension device connecting the central portion of said boom construction with said support construction, said suspension device comprising means for allowing the boom construction to turn about an axis of rotation extending substantially horizontal and substantially perpendicular to the boom construction; andat least one pair of non-vertically extending one-piece, push/pull rods arranged in accordance with a preselected geometrical configuration, each rod being connected at one end by a swivel joint to a point on the boom construction and at an opposite end to a point on the support construction by another swivel joint;said push/pull rods of said pair being so arranged that one rod of the pair of rods is influenced by a pull simultaneously with the other rod of the pair being influenced by a push upon rotation of the boom construction about said axis of rotation.