Hitch Patents (Class 56/DIG14)
  • Patent number: 5107663
    Abstract: A farm machine comprises at least one group of working elements and a structure having a hitching mechanism for hitching the farm machine to a motor vehicle during work. The group of working elements is connected to the structure which comprises a tongue (hitching mechanism), and a frame through a deformable quadrilateral suspension device which comprises suspension elements each one of which is connected to the structure through a first joint and to the group of working elements through a second joint.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: April 28, 1992
    Assignee: Kuhn s.a.
    Inventors: Bernard Wattron, Roland Helfer
  • Patent number: 5094063
    Abstract: A mower to be moved by a motorized vehicle includes a frame supporting a number of working elements (cutting elements combined or not with processing elements). These working elements are arranged crosswise to a direction of advancement of the motor vehicle and mower during work. Two cutting bar parts, one on each side of a central plane of the mower, carry the cutting elements and their associated drive structure. The two cutting bar parts are connected to one another rigidly and reliably. An arrangement of transmission shafts, bevel gears, and universal joints is provided for transferring rotating motion from a power source to the working elements of the mower.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: March 10, 1992
    Assignee: Kuhn, S.A.
    Inventors: Bernard Wattron, Roland Helfer
  • Patent number: 5076042
    Abstract: A mowing machine comprises a mowing unit and a crushing unit, both suspended in a first frame, the first frame together with the mowing unit (8) and the crushing unit also being suspendedeither to the leading end of a second frame which is provided with ground engaging wheels and a drawbar for connection behind a tractor,or to the lifting hitch at the front side of the tractor. The same type mowing machine is also operable at the forward end of the tractor as well as to the tractor's rear at the left or right side.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: December 31, 1991
    Assignee: C. van der Lely N.V.
    Inventors: Maarten Koorn, Sape Sikkema
  • Patent number: 5065568
    Abstract: A mower deck height adjustment mechanism having a frame coupled to a rear base unit having driven wheels. Ground engaging wheels support the frame, and a deck is coupled to the frame. A crank handle is coupled to a transverse bar that is fixed to a lower parallel member. The operator turns the crank handle to pivot the bar and lower parallel member to thereby raise and lower the front of the deck. A bell crank couples the rear of the deck to the crank handle. The bell crank is carried by and shifts vertically with a connecting member supported by the front of the deck. As the front of the deck shifts vertically, the connecting member, bell crank, and rear portion of the deck also shift vertically. The bell crank is also operatively coupled with the bar for pivoting therewith, which also causes the rear portion of the deck to shift vertically.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: November 19, 1991
    Assignee: Deere & Company
    Inventors: Stephen A. Braun, Michael J. O'Neill, Donald L. Cutshall
  • Patent number: 5018345
    Abstract: A draft tongue is horizontally adjustably connected to the left-hand end of a wheel-supported main frame of a crop harvester for movement between an outward working position and an inward transport or traveling position. The tongue includes front and rear portions which are disposed angularly relative to each other and, when the torque is in its working position, the rear portion extends outwardly from a straight ahead direction and the front portion extends forwardly and downwardly in a vertical plane extending in the straight ahead direction when the tongue is in its working position.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 28, 1991
    Assignee: Deere & Company
    Inventor: James C. Walters
  • Patent number: 4993216
    Abstract: A system for mounting and supporting cotton harvesting units for vertical displacement on a forward end of a cotton harvester frame. The mounting and supporting system includes a parallelogram-type linkage assembly for connecting the harvesting units to the frame such that the harvesting units maintain a generally level attitude in either lowered or raised positions. The linkage assembly includes vertically spaced and generally parallel lift arms and tension arms. Each lift arm and tension arm is pivotally attached at its rear end to the frame and at its forward end to the harvesting units. A tilting mechanism connects the rear end of the tension arms to the frame and is operable to move the harvesting units about their pivot attachment to the lift arm to a tilted position and thereby facilitate an increase in ground clearance for the cotton harvester.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: February 19, 1991
    Assignee: J. I. Case Company
    Inventors: Michael J. Covington, G. Neil Thedford, Jesse H. Orsborn
  • Patent number: 4974407
    Abstract: A hay rake having a frame assembly, having a front, a back and two sides and supported by wheels for being moved by a vehicle. A first and second set of a plurality of fingerwheel rakes are provided with each set rotatably carried adjacent opposite sides of the frame about a separate axis. Each of the axis are at an angle to vertical and horizontal. A power actuator on the frame rotates the rakes about the axis for rotating the rakes downwardly, outwardly and backwardly for moving the rakes to a rake position and rotates the rakes upwardly, inwardly and forwardly to raise the rakes to a transport position.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: December 4, 1990
    Inventors: Carroll G. Rowe, John D. Little
  • Patent number: 4015413
    Abstract: The invention relates to an agricultural implement for raking or spreading crop lying on the ground comprising a frame attached to the three-point lift of a tractor and at least one pair of rake wheels suspended to said frame and driven by the power take-off shaft of the tractor; the improvement concerns the frame comprising a longitudinal beam coupled with the tractor and extending in the direction of movement and a transverse beam pivoted to the former, the pivot having a vertical hinge pin as well as a hinge pin extending in the length direction, and an adjustable coupling member being arranged between the longitudinal and transverse beams for the adjustment of the angle formed by the beams.
    Type: Grant
    Filed: August 19, 1975
    Date of Patent: April 5, 1977
    Inventors: Nicolaas van der Plas, Berend Broijl
  • Patent number: 3982772
    Abstract: An apparatus for turning a compost silo has a portal frame adapted to travel along the ground in a travel direction and a pair of side portions spaced sufficiently apart transverse to the direction to straddle the silo. A pair of oppositely handed augers extending transverse to the travel direction between the side portions are rotatable to turn the silo. At each end this double auger is connected to the output of a respective angle drive having an input directed forwardly and connectable via a rod to the power takeoff of a tractor in front of and to one side of the frame relative to the travel direction. A tow bar has a rear end pivoted on the frame midway between the side portions and a front end connectable to the hitch of the tractor. Thus, this apparatus may follow the tractor to either side of the tractor.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: September 28, 1976
    Assignee: Maschinenfabrik Fahr Aktiengesellschaft
    Inventor: Werner Scherer