Power lift for a lifting device
AssigneeDeere & Company
InventorRobert Kryscyk
Life of this patent
Estimating the term…
Abstract
A power lift system includes a lifting device with lower links. The lower links are connected to a frame of the tractor by arms of an upper link. The lower links may be either vertically pivotably or rigidly coupled to the arms. The arms may be either rigidly or vertically pivotably connected to the tractor frame. The height and the lifting range of the lower links is variable.
Claims6
A front-mounted power lift assembly for an agricultural tractor comprising a frame member fixed to the tractor, at least one vertically movable lower link having means for engaging an implement, and at least one arm, one end of the arm being coupled to the lower link, characterized by means for pivotally coupling the link to the one end of the arm at a pivot axis and by means for selectively rotatably and non-rotatably connecting the other end of the arm to the frame member, the means for connecting the arm to the frame member comprising at least one opening in the arm, a plurality of openings in the frame member and a pin for insertion through the at least one opening in the arm and through a selected one of the frame member openings, the power lift assembly further comprising a lifting means for vertical moving of the lower link.
Dependencies are inferred from the claim text.