Large field cultivator narrow fold
US-2015156958-A1 · Jun 11, 2015 · US
US10448553B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10448553-B2 |
| Application number | US-201615148361-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 6, 2016 |
| Priority date | May 6, 2016 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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An agricultural or industrial implement has a main frame including longitudinal and cross frame members. Rear main lift wheels are connected to rear lift wheel arms that are pivotally connected to the main frame and can be raised and lowered using a hydraulic lift cylinder. The hydraulic lift cylinder is connected to a center pivot of a lug. The lug has a lower connection point connected to a lug anchor, which is connected to a rear cross frame member. The lug also has an upper connection point connected to two load members. One load member extends diagonally forward from the upper connection point and connects to one of the longitudinal frame members located to the left of the lug. Another load member extends diagonally forward from the upper connection point and connects to one of the longitudinal frame members located to the right of the lug.
Opening claim text (preview).
What is claimed is: 1. An agricultural or industrial implement, comprising: a main frame including at least two longitudinal frame members, at least one fore cross frame member, and at least one aft cross frame member; at least one rear main lift wheel connected to at least one rear lift wheel arm, the at least one rear lift wheel arm being pivotally connected to the main frame and being actuated between a raised position and a lowered position by at least one hydraulic lift cylinder; the at least one hydraulic lift cylinder being connected to a center pivot of a lug, the lug having a lower connection point being connected to a lug anchor, the lug anchor being connected to the at least one aft cross frame member, the lug having an upper connection point being connected to at least two connecting load members; one of the at least two connecting load members extending diagonally forward from the upper connection point of the lug and connecting to one of the at least two longitudinal frame members located to the left of the lug; and another of the at least two connecting load members extending diagonally forward from the upper connection point of the lug and connecting to one of the at least two longitudinal frame members located to the right of the lug; wherein the connecting load member is connected to the longitudinal frame member located to the left of the lug via a left attachment plate, and the connecting load member is connected to the longitudinal frame member located to the right of the lug via a right attachment plate; wherein the longitudinal frame member located to the left of the lug and the longitudinal frame member located to the right of the lug are each in the form of a truss with an upper longitudinal frame member and a lower longitudinal frame member; and wherein the left attachment plate is attached to the upper longitudinal frame member and to the lower longitudinal frame member of the longitudinal frame member located to the left of the lug, and the right attachment plate is attached to the upper longitudinal frame member and to the lower longitudinal frame member of the longitudinal frame member located to the right of the lug. 2. The agricultural or industrial implement of claim 1 , wherein: the left attachment plate is attached to the longitudinal frame member located to the left of the lug at a point where the longitudinal frame member intersects the at least one fore cross frame member; and the right attachment plate is attached to the longitudinal frame member located to the right of the lug at a point where the longitudinal frame member intersects the at least one fore cross frame member. 3. The agricultural or industrial implement of claim 2 , wherein: the left attachment plate and the right attachment plate forms a hook about the at least one fore cross frame member. 4. The agricultural or industrial implement of claim 1 , wherein: the at least one rear main lift wheel and the at least one rear lift wheel arm further comprises at least two rear main lift wheels and at least two rear lift wheel arms. 5. The agricultural or industrial implement of claim 4 , wherein: the at least two rear lift wheel arms are pivotally connected to the main frame using a rockshaft, the rockshaft coordinates the motion of the at least two rear lift wheel arms. 6. The agricultural or industrial implement of claim 5 , further comprising: a hinged pull hitch extending forward from the main frame; and a linkage assembly connected to the rockshaft and to the hinged pull hitch, the linkage assembly causing the hinged pull hitch to rotate downward when the at least two rear lift wheel arms are rotated into the lowered position. 7. The agricultural or industrial implement of claim 1 , further comprising: at least one wing section. 8. The agricultural or industrial implement of claim 7 , wherein: the at least one wing section having a wing frame including at least two longitudinal wing frame members, at least one fore wing cross frame member, and at least one aft wing cross frame member; the at least one wing section having at least one rear wing lift wheel connected to at least one wing lift wheel arm, the at least one wing lift wheel arm being pivotally connected to the wing frame and being actuated between a raised position and a lowered position by at least one hydraulic wing lift cylinder; the at least one hydraulic wing lift cylinder being connected to a center pivot of a wing lug, the wing lug having a lower connection point being connected to a wing lug anchor, the wing lug anchor being connected to the at least one aft wing cross frame member, the wing lug having an upper connection point being connected to at least two wing connecting load members; one of the at least two wing connecting load members extending diagonally forward from the upper connection point of the wing lug and connecting to one of the at least two longitudinal wing frame members located to the left of the wing lug; and another of the at least two wing connecting load members extending diagonally forward from the upper connection point of the wing lug and connecting to one of the at least two longitudinal wing frame members located to the right of the wing lug. 9. A main lift wheel assembly of an agricultural or industrial implement comprising: a main frame including at least two longitudinal frame members, at least one fore cross frame member, and at least one aft cross frame member, and a pull hitch extending forward from the main frame; at least one rear main lift wheel connected to at least one rear lift wheel arm, the at least one rear lift wheel arm being pivotally connected to the main frame and being actuated between a raised position and a lowered position by at least one hydraulic lift cylinder; the at least one hydraulic lift cylinder being connected to a center pivot of a lug, the lug having a lower connection point being connected to a lug anchor, the lug anchor being connected to the at least one aft cross frame member, the lug having an upper connection point being connected to at least two connecting load members; one of the at least two connecting load members extending diagonally forward from the upper connection point of the lug and connecting to one of the at least two longitudinal frame members located to the left of the lug; and another of the at least two connecting load members extending diagonally forward from the upper connection point of the lug and connecting to one of the at least two longitudinal frame members located to the right of the lug; wherein the connecting load member is connected to the longitudinal frame member located to the left of the lug via a left attachment plate, and the connecting load member is connected to the longitudinal frame member located to the right of the lug via a right attachment plate; wherein the longitudinal frame member located to the left of the lug and the longitudinal frame member located to the right of the lug are each in the form of a truss with an up per longitudinal frame member and a lower longitudinal frame member; and wherein the left attachment plate is attached to the upper longitudinal frame member and to the lower longitudinal frame member of the longitudinal frame member located to the left of the lug, and the right attachment plate is attached to the upper longitudinal frame member and to the lower longitudinal frame member of the longitudinal frame member located to the right of the lug. 10. The main lift wheel assembly of claim 9 , wherein: the left attachment plate is attached to the longitudinal frame member located to the left of the lug at a point where the longitudinal frame member intersects the at least one fore cross
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