Plough frame comprising at least one body having a plough board and a single ploughshare acting in both ploughing directions
OwnerJean-Louis Costeinventor
Life of this patent
Estimating the term…
Abstract
A plough frame designed to be hitched to a tractor and comprising at least one body which has a plough board and a single ploughshare for both the right and left ploughing directions, said frame consisting of a coupler head (1), hinged elements which swing relative to said head and include: a body support beam (5) provided with body support pivots (19), at least one bracket element (6) swiveling both around a point (3) with the head (1) and around a point (8) with the body support beam (5) so that this beam can pass either side of a line running through said points (3 and 8), and at least one activating device (16) for moving the body support beam (5) and allowing different ploughing widths to be achieved.
Claims12
A plough frame for being hitched to a tractor (100) said frame consisting of a coupler head (1) for connecting to the tractor (100) and hinged elements which are connected and swing relative to said coupler head (1), the hinged elements including:
- a body support beam (5) having first and second ends and being provided with regularly spaced body support pivots (19), each pivot (19) supporting a body (101) comprising a plough board (102) and a ploughshare (103) for both right and left ploughing directions, and an arm (13) connected to each of said bodies to control the orientation of each of said bodies, each of said arms (13) engaging the body support beam (5) at a first end at a pivot (19), the arms being parallel to one another, and each of said arms engaging at a second end a single and common connecting member (15) to form a parallelogram (5/13/15/13) and to control through the pivots (19) the orientation of all the bodies (101) together;
- a bracket (6) hinged to support the beam (5), connected to the coupler head (1) at a first end by a vertically-oriented axis (3) and connected to the first end of the body support beam (5) at a second end by a vertically-oriented axis (8), the second end of beam (5) being proximate to the coupler head (1) and being rotatable around the axis (8) on both sides of a plane containing the vertical axis (3) and the vertical axis (8);
- and
- means (25) for moving the connecting member (15) in order to rotate the pivots (19) which orient the bodies, means (16) for moving the bracket (6) around the axis (3), and means (9) for moving the beam (5) around the axis (8);
- the distance between two adjacent pivots (19) along the beam (5) being A, the distance between the axis (8) and the axis (3) being A', and the distance between the axis (8) and the pivot (19) most proximate to the second end of the beam (5) being A", the distance A' being approximately equal to A+A".
Dependencies are inferred from the claim text.