Coupling assembly for a three point hitch assembly
OwnerFred L. Farnsworth, Jason R. Farnsworthinventors
Life of this patent
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Abstract
A coupling assembly for use with a tractor having a three point mounting hitch assembly having two extension legs telescopically retained by two generally vertical sleeve members slanted towards each other and two lateral extension arms telescopically retained by a cross sleeve member, wherein the lateral extension arms can be extended or retracted and wherein the extension legs can be extended or retracted to alter the relative positions of an upper hook and two lower hooks.
Claims20
A coupling assembly for connecting an implement to a three point mounting hitch assembly on a tractor, the implement comprising a mounting frame having an upper pin and two lower pins, said coupling assembly comprising:
- an upper hook to receive and retain the upper pin of an implement, said upper hook mounted on a generally horizontal assembly comprising lateral extension arms;
- two lower hooks to receive and retain the lower pins of an implement, and
- extension legs mounted to said lateral extension arms;
- means to simultaneously extend and retract said lateral extension arms such that the horizontal spread distance between said lower hooks may be increased or decreased;
- means to independently extend and retract said extension legs, such that the vertical spread distance between said upper hook and said two lower hooks may be increased or decreased.
A coupling assembly to connect an implement to a three point mounting hitch on a tractor, the tractor three point mounting hitch assembly comprising an upper arm mounting means and two lower arm assemblies each having a lower hitch arm, said coupling assembly comprising:
- an upper hook and two lower hooks, said lower hooks disposed on two extension legs telescopically retained by two vertical sleeve members;
- two lateral extension arms telescopically retained by a cross sleeve member, said vertical sleeve members mounted to said lateral extension arms and said upper hook mounted to said cross sleeve member;
- means to simultaneously extend and retract said lateral extension arms, such that the distance between said lower hooks may be increased or decreased;
- means to independently extend and retract said extension legs, such that the vertical distance between the upper hook and the lower hooks may be increased or decreased.
A coupling assembly in combination with a tractor having a three point mounting hitch comprising an upper arm mounting means and two lower arm assemblies each having a lower hitch arm, said coupling assembly adapted to temporarily retain an implement comprising a mounting frame having an upper pin and two lower pins, said coupling assembly comprising:
- an upper hook to receive and retain the upper pin of an implement;
- two lower hooks to receive and retain the lower pins of an implement, said lower hooks disposed on two extension legs telescopically retained by two vertical sleeve members, wherein said vertical sleeve members are slanted towards each other, and wherein said extension legs are connected to said tractor lower hitch arms;
- two lateral extension arms telescopically retained by a cross sleeve member, wherein said lateral extension arms extend and retract in opposite directions from said cross sleeve member and wherein said vertical sleeve members are mounted to said lateral extension arms and said upper hook is mounted to said cross sleeve member;
- an upper arm assembly connected to said cross sleeve member and to said tractor upper arm mounting means, said upper arm assembly comprising means to extend or shorten said upper arm assembly;
- means to simultaneously extend and retract said lateral extension arms relative to said cross sleeve member, such that the distance between said vertical sleeve members, said vertical leg extensions, lower hooks may be increased or decreased;
- means to independently extend and retract said extension legs relative to said vertical sleeve members, such that the vertical distance between the upper hook and the lower hooks may be increased or decreased.
Dependencies are inferred from the claim text.