Draw bar for a motor grader

Details Draw bar for a motor grader Draw bar for a motor grader

E - Fixed Constructions

02

F

37/35

E02F 3/76 (2006.01) E02F 3/80 (2006.01)

Patent

CA 1049779

DRAW BAR FOR A MOTOR GRADER ABSTRACT Motor graders have a longitudinal main frame which carries a circle mounting bar that pivots on a horizontal axis at a connecting end and that has a carrying portion remote from its connecting end. A circle rotates on a vertical axis on the mounting bar carrying portion, and a grader blade is mounted on the circle. The present improved circle mounting bar is a box- like beam with internal vertical webs, and the beam increases in width from its connecting end toward a carrying portion of box-like cross section which is a separate part integrally welded to the beam. The shape of the beam in plan is inter- mediate between an isosceles triangle with its apex at the connecting end and a parabola with its apex at said end so as to give optimum uniformity of stress, throughout the length of the mounting bar, to both vertical and lateral forces. -1-

260924

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