Patents Assigned to Tonutti S.p.A.
  • Patent number: 7165386
    Abstract: A vertically folding rake assembly is configured for forming a windrow of cut agricultural crop material. The rake includes a trolley; a pair of rake arm suspension supports interconnected with the trolley and movable in a vertical plane between a raised position and a lowered position, and a vertically movable linkage arrangement configured for moving each of the rake arm suspension arrangements between the raised position and the lowered position. The rake further includes a rake arm suspended from each of the rake arm suspension supports. Each of the rake arm suspension supports includes a linkage pivotally connected to the trolley and a vertical support member that is pivotal about a vertical pivot axis and in support of the rake arm. The rake arm suspension arrangement further includes a pivot connection to provide pivoting movement of the rake arm about a horizontal axis, and a counterbalancing biasing arrangement to center each rake arm.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: January 23, 2007
    Assignee: Tonutti S.p.A. Industria Macchine Agricole
    Inventor: Carletto Tonutti
  • Patent number: 7076938
    Abstract: A bifold rake for agricultural crop material includes a rear wheeled trolley and a forwardly extending drawbar adapted for interconnection with a tow vehicle such as a tractor. A pair of rake arms are pivotably interconnected to opposite sides of the trolley, and each rake arm carries a series of rake members such as rotatable rake wheels. An opening and closing mechanism is interposed between the drawbar and the rake arms, for moving the rake arms between open and closed positions. The rake includes a windrow width adjustment system for adjusting the width of a windrow of crop material formed by the rake, independent of adjustment in the width of the trolley. In one embodiment, the windrow width adjustment system is in the form of a variable position connection arrangement interposed between each rake arm and the trolley, for adjusting the lateral position of the rearward end of the rake arm so as to adjust the position of the innermost rake member.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: July 18, 2006
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 7007450
    Abstract: A bifold rake for agricultural crop material includes a rear wheeled trolley and a forwardly extending drawbar adapted for interconnection with a tow vehicle such as a tractor. A pair of rake arms are pivotably interconnected to opposite sides of the trolley, and each rake arm carries a series of rake members such as rotatable rake wheels. An opening and closing mechanism is interposed between the drawbar and the rake arms, for moving the rake arms between open and closed positions. The rake includes a windrow width adjustment system for adjusting the width of a windrow of crop material formed by the rake, independent of adjustment in the width of the trolley. In one embodiment, the windrow width adjustment system is in the form of a variable position connection arrangement interposed between each rake arm and the trolley, for adjusting the lateral position of the rearward end of the rake arm so as to adjust the position of the innermost rake member.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 7, 2006
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 6945024
    Abstract: A bifold rake includes a rear trolley to which a pair of rake arms are pivotably mounted, and a drawbar extending forwardly from the rear trolley. An opening and closing mechanism includes front and rear operating arms located on each side of the drawbar and pivotably interconnected with each other and with one of the rake arms. The inner end of each operating arm is pivotably interconnected with a slidable arrangement associated with the drawbar, which may be a sleeve slidably mounted to the drawbar for axial movement, or a telescoping section of the drawbar that is capable of moving inwardly and outwardly relative to a receiver section of the drawbar. An extendible and retractable actuator assembly is interconnected with the drawbar and at least one of the slidable arrangements for moving the front and rear arms together and apart to move the rake arms between open and closed positions.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: September 20, 2005
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 6543212
    Abstract: A rake wheel construction for an agricultural hay rake includes a central hub and a series of rake fingers that extend outwardly from the central hub. A peripheral rim is located outwardly of the central hub, and each rake finger is engaged with the rim at a location between an inner end and an outer end defined by the rake finger. An open area is located between the central hub and the peripheral rim, and a disc member is located in the open area between the central hub and the peripheral rim. A series of bracket members are secured to the disc member, and are located inwardly of the peripheral rim, and a brace member extends between the central hub and each bracket member.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: April 8, 2003
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Publication number: 20020069634
    Abstract: A V-rake includes a drawbar assembly adapted for connection to a tow vehicle, in combination with a transverse cross-member connected to the drawbar assembly. Wheels are mounted to the cross-member, to form a trolley for conveying the V-rake. A rake arm is mounted to each end of the cross-member, and includes a series of rake wheels. The rake arms are moveable relative to the cross-member between an open, operative position and a closed, transport position, and the rake wheels are moveable relative to the rake arms between a raised, inoperative position and a lowered, operative position. The transverse cross-member is a rigid, fixed-length member to increase the structural rigidity of the trolley. A windrow width adjusting arrangement is interconnected with the rake assembly, and includes a windrow forming rake assembly mounted to the transverse cross-member adjacent each end thereof.
    Type: Application
    Filed: November 12, 2001
    Publication date: June 13, 2002
    Applicant: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 6314710
    Abstract: A V-rake includes a drawbar assembly adapted for connection to a tow vehicle, in combination with a transverse cross-member connected to the drawbar assembly. Wheels are mounted to the cross-member, to form a trolley for conveying the V-rake. A rake arm is mounted to each end of the cross-member, and includes a series of rake wheels. The rake arms are moveable relative to the cross-member between an open, operative position and a closed, transport position, and the rake wheels are moveable relative to the rake arms between a raised, inoperative position and a lowered, operative position. The transverse cross-member is a rigid, fixed-length member to increase the structural rigidity of the trolley.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: November 13, 2001
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5752375
    Abstract: A pull-type bifold hay rake includes a draw bar assembly connected to a tow vehicle, a support linkage mounted to the draw bar assembly, a trolley assembly having a cross-member assembly, and a pair of articulated rake arm assemblies, each being pivotably connected to an end of the cross-member assembly. Each of the rake arm assemblies are also connected to the support linkage at a point spaced from the pivotable mounting of each rake arm assembly to the cross-member assembly. A series of rotatable rake wheels are mounted to each rake arm assembly as well as the trolley assembly for movement between a raised and a lowered position. The rake arm assemblies are movable between an operative, open position and an inoperative, closed position. A hydraulic cylinder mounted on the trolley assembly moves the rake arm assemblies between their open and closed positions.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: May 19, 1998
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5493853
    Abstract: A pull-type bifold hay rake includes a draw bar mounted at its rearward end to a cross-member, with a pair of rake arms pivotably mounted to the cross-member. A series of rotatable rakes are mounted to each rake arm for movement between a raised and lowered position. A linkage assembly is interposed between the draw bar and the rake arms for moving the rake arms between an operative open position and an inoperative closed position. A hydraulic cylinder assembly, including an extendible and retractable rod, is interconnected with the linkage and with the draw bar for moving the linkage between a first position in which the rake arms are open and a second position in which the rake arms are closed. A cable and pulley arrangement is interconnected between the hydraulic cylinder assembly and a control rod mounted to each rake arm for providing movement of the rake assemblies between their raised and lowered positions in response to operation of the hydraulic cylinder assembly.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: February 27, 1996
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5313772
    Abstract: A rake component system consists of a tool bar frame member, a pair of rake assemblies, a pair of pivot heads for mounting the rake assemblies to the tool bar frame member, a lifting and lowering assembly, a three-point hitch assembly mountable to the tool bar frame member and a pull-type hitch assembly mountable to the tool bar frame member. These components are shipped to a dealer or assembler in a knocked-down condition. When desired, the rakes and pivot heads are mounted to the tool bar frame member. Either the three-point hitch assembly or the pull-type hitch assembly is mounted to the tool bar frame member, depending upon the particular configuration desired. The lifting and lowering assembly, which consists of a linkage connected to the rake pivot heads and an extendible and retractable cylinder connected to the linkage, is then mounted to tool bar frame member.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: May 24, 1994
    Assignee: Tonutti S.P.A.
    Inventor: Carletto Tonutti
  • Patent number: 5263306
    Abstract: The present invention regards a rake trolley with adjustable working widths, suitable for three point hitch finger wheel hay rakes. The trolley includes a transverse frame member. A pair of rake arms are connected to a pair of movable heads or supports, and a raising and lowering assembly is interconnected between the frame member and each rake head. The raising and lowering assembly includes a linkage, with a connector member on each side of the linkage extending between the linkage and one of the rake heads. A hydraulic cylinder assembly is interconnected with the linkage for moving it between a first position in which the rake arms are pivoted to a lowered, or working position, and a second position in which the rake arms are pivoted to a raised, or transport, position. The connector members are adjustable in length, to accommodate connection of the rake heads to varying positions along the length of the frame member.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: November 23, 1993
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5231829
    Abstract: The present invention regards a rake trolley with adjustable working widths, suitable for three point hitch finger wheel hay rakes. The trolley includes a transverse frame member. A pair of rake arms are connected to a pair of moveable heads, and a pair of hydraulic cylinders are provided for moving the moveable heads between a working position in which the rake arms are lowered, and a transport position in which the rake arms are raised. The rake heads are mounted to the frame member, and the position of the rake heads on the frame member can be adjusted to vary the overall width of the rake trolley.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: August 3, 1993
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5177945
    Abstract: The present invention regards a rake head able to support a right hand and left hand finger wheel hay rake. The structure has been designed to be versatile and there apply many different models of rake frames: the simple type which is a single reduced frame supported by the tractor three point hitch; the double V type placed onto a fixed or bolted frame on the right side or left side; the more complex type on a frame which has been assembled onto a trolley with oleodynamic control.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: January 12, 1993
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5146736
    Abstract: The present invention regards a mechanical device which is an attachment able to support a three point hitch type rake and which is applied to the rear of a tractor. Its structure has been devised in order to allow for a greater versatility in its uses according to the working necessities of the rake. In fact, with a simple action on the pivot (15) and on the side regulating assembly, it is possible to orientate the same on the right-hand side and on the left-hand side, effecting a 180 degree rotation.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: September 15, 1992
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti
  • Patent number: 5062260
    Abstract: This invention concerns a pull type hay rake which has the particularity of having an upside down "V" shape and to have two movable side elements, that open automatically when need for working and they close automatically when one has to transport on the road. Furthermore, this invention forsees the addition of other elements as optionals so as to increase or decrease its performances.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: November 5, 1991
    Assignee: Tonutti S.p.A.
    Inventor: Carletto Tonutti