Agricultural implement hitches with rotational motion

Inventors: Ka Catherine Po Hui (Saskatoon, CA); Matthew J. Stefaniuk (Saskatoon, CA); Ehsan Sharbati (Saskatoon, CA); Jack R. Chappell (Saskatoon, CA); Jackie Donald Turner (Saskatoon, CA)

Assignee: CNH Industrial Canada, Ltd.

A01B59/042 A01C7/08

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Quick Facts

Patent No.: US 12672593
App. No.: 18/364,114
Granted: Jul 7, 2026
Kind: B2

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Abstract

A hitch system for coupling a first agricultural implement to a second agricultural implement includes a clevis coupled to an end of a first hitch of the first agricultural implement. The clevis includes a first connector end having a first opening and a second connector end having a second opening. The hitch system also includes a pin configured to be disposed through the first opening and the second opening of the clevis and a connector of a second hitch of the second agricultural implement to couple the first agricultural implement to the second agricultural implement. The clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the first agricultural implement and the second agricultural implement when being towed by a work vehicle.

Claims (32)

1 . A hitch system for coupling a first agricultural implement to a second agricultural implement, comprising:

a clevis coupled to an end of a first hitch of the first agricultural implement, wherein the clevis comprises a first connector end having a first opening and a second connector end having a second opening;

a pin configured to be disposed through the first opening and the second opening of the clevis and a connector of a second hitch of the second agricultural implement to couple the first agricultural implement to the second agricultural implement, wherein the clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the first agricultural implement and the second agricultural implement when being towed by a work vehicle;

a first collar configured to be disposed about a first end of the pin extending through the first opening; and

a second collar configured to be disposed about a second end of the pin extending through the second opening, wherein the first collar and the second collar are configured to block rotational movement of the pin about a longitudinal axis of the pin.

2 . The hitch system of claim 1 , wherein the clevis is configured to enable the first agricultural implement to rotate in a first circumferential direction about the rotational axis and the second agricultural implement to rotate in a second circumferential direction about the rotational axis that is opposite the first circumferential direction.

3 . The hitch system of claim 1 , wherein the first connector end comprises a third opening adjacent the first opening and the second connector end comprises a fourth opening adjacent the second opening, and wherein the first collar comprises a first portion configured to be inserted within the third opening to fix a first position of the first collar when disposed about the first end of the pin, and the second collar comprises a second portion configured to be inserted within the fourth opening to fix a second position of the second collar when disposed about the second end of the pin.

4 . The hitch system of claim 1 , wherein the pin when inserted within the first opening and the second opening is configured to be orthogonal to the rotational axis.

5 . The hitch system of claim 1 , wherein the clevis is configured to be removable from the end of the first hitch.

6 . The hitch system of claim 1 , further comprising an additional pin configured to extend through the end of the first hitch and a plate of the clevis to couple the clevis to the end of the first hitch, wherein the plate extends between and couples the first connector end and the second connector end.

7 . The hitch system of claim 6 , further comprising a beam structure coupled to the first end of the hitch and a tube disposed within the beam structure, wherein the additional pin is configured to be inserted within the tube when coupling the clevis to the end of the first hitch, wherein the tube comprises a grease zerk to lubricate the additional pin.

8 . The hitch system of claim 7 , further comprising an additional tube that extends through the plate, and the additional pin is configured to be inserted within the additional tube when coupling the clevis to the end of the hitch.

9 . The hitch system of claim 1 , wherein the first agricultural implement comprises a seeder and the second agricultural implement comprises an air cart.

10 . A seeding system, comprising:

a seeder configured to be towed by a work vehicle and comprising a first hitch having an end and a clevis coupled to the end, wherein the clevis comprises a first connector end having a first opening and a second connector end having a second opening;

an air cart configured to be towed by the work vehicle and comprising a second hitch having a connector;

a pin configured to be disposed through the first opening and the second opening of the clevis and the connector of the second hitch to couple the seeder to the air cart, wherein the clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the seeder and the air cart when being towed by the work vehicle;

a first collar configured to be disposed about a first end of the pin extending through the first opening; and

11 . The seeding system of claim 10 , wherein the clevis is configured to enable the seeder to rotate in a first circumferential direction about the rotational axis and the air cart to rotate in a second circumferential direction about the rotational axis that is opposite the first circumferential direction.

12 . The seeding system of claim 10 , wherein the first connector end comprises a third opening adjacent the first opening and the second connector end comprises a fourth opening adjacent the second opening, and wherein the first collar comprises a first portion configured to be inserted within the third opening to fix a first position of the first collar when disposed about the first end of the pin, and the second collar comprises a second portion configured to be inserted within the fourth opening to fix a second position of the second collar when disposed about the second end of the pin.

13 . The seeding system of claim 10 , wherein the pin when inserted within the first opening and the second opening is configured to be orthogonal to the rotational axis.

14 . The seeding system of claim 10 , wherein the clevis is configured to be removable from the end of the first hitch.

15 . The seeding system of claim 10 , further comprising an additional pin configured to extend through the end of the first hitch and a plate of the clevis to couple the clevis to the end of the first hitch, wherein the plate extends between and couples the first connector end and the second connector end.

16 . The seeding system of claim 15 , further comprising a beam structure coupled to the first end of the hitch and a tube disposed within the beam structure, wherein the additional pin is configured to be inserted within the tube when coupling the clevis to the end of the first hitch, wherein the tube comprises a grease zerk to lubricate the additional pin.

17 . The seeding system of claim 16 , further comprising an additional tube that extends through the plate, and the additional pin is configured to be inserted within the additional tube when coupling the clevis to the end of the hitch.

18 . A method for coupling a first agricultural implement to a second agricultural implement, comprising:

providing a clevis coupled to an end of a first hitch of the first agricultural implement, wherein the clevis comprises a first connector end having a first opening and a second connector end having a second opening;

inserting a connector of a second hitch of the second agricultural implement between the first connector end and the second connector end of the clevis;

disposing a pin through the first opening and the second opening of the clevis and the connector of the second hitch to couple the first agricultural implement to the second agricultural implement, wherein the clevis is configured to rotate about a rotational axis that is parallel with a direction of travel of the first agricultural implement and the second agricultural implement when being towed by a work vehicle;

disposing a first collar about a first end of the pin extending through the first opening; and

disposing a second collar about a second end of the pin extending through the second opening, wherein the first collar and the second collar are configured to block rotational movement of the pin about a longitudinal axis of the pin.