# US 10,477,753 B2 · Apparatuses, methods, and systems for providing down force for an agricultural implement

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- Number: US 10,477,753 B2
- Document ID: US10477753B2
- Status: Granted
- Kind: B2
- Application number: 15/783,708
- Filed: 2017-10-13
- Published: 2018-02-08
- Granted: 2019-11-19
- Earliest claimed: 2014-03-21
- Assignees: Kinze Manufacturing, Inc.
- Applicants: Kinze Manufacturing, Inc.
- Inventors: Courtney N. Achen; Marvin Bachman; Rhett Schildroth; Merlan Rolffs; Michael J. Myers; John Kollman; John P. Mulherin
- Web page: https://patentgrep.com/patent/US10477753B2

## CPC

- A01B 63/32: operated by hydraulic or pneumatic means {without automatic control}
- A01C 7/205: {comprising pressure regulation means}
- A01B 49/06: for sowing or fertilising
- A01B 61/044: {the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis}
- A01B 63/28: operated by the machine or implement
- A01C 5/062: {Devices for making drills or furrows}
- A01C 5/064: {with rotating tools}
- A01C 7/203: {comprising depth regulation means}
- A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21)
- A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00)

## Abstract

An agricultural planter includes systems, methods, and apparatuses for maintaining down force pressure at row units of the planter. The row units may include an electric linear actuator connected to linkages of the row units to maintain a down force pressure for the row unit. The linkage may also be removed and replaced with a strut or like mechanism to apply a direct down force pressure to components of the row unit. One or more sensors can be included to obtain information related to the ground to automatically adjust the amount of down force provided based upon a ground characteristic in order to maintain a substantially uniform furrow depth.

## Claims

### Claim 1

An agricultural implement, comprising:
a toolbar; and
a row unit comprising a frame and a strut, the strut connected to the toolbar and several fluid components, the fluid components comprising at least a furrow opener;
substantially rigid components connected to the toolbar, the rigid components comprising at least a seed meter for planting seed, a seed tube for passing seed from the seed meter, and a closing wheel;
the strut having a housing generally fixed in position and connected to the seed meter, and a rod movable relative to the housing, the rod connected to the furrow opener;
wherein the strut provides a down force for the fluid components.

### Claim 2 (depends on 1)

The agricultural implement of claim 1, wherein the fluid components further comprise a trash wheel and gauge wheels connected to the movable rod of the strut.

### Claim 3 (depends on 1)

The agricultural implement of claim 1, wherein the strut further comprises a compressible gas opposite the rod, wherein the rod will move in response to an obstruction, but the compressible gas will revert the rod to its previous position.

### Claim 4 (depends on 1)

The agricultural implement of claim 1, further comprising a ground sensor positioned on the toolbar to determine a ground characteristic, said ground sensor configured to provide monitoring of the ground in front of the row unit.

### Claim 5 (depends on 4)

The agricultural implement of claim 4, wherein the ground sensor is positioned on a front side of the toolbar.

### Claim 6 (depends on 4)

The agricultural implement of claim 4, wherein the ground sensor is a vision sensor positioned to read an area of ground in front of the row unit to provide information to prepare the down force provided.

### Claim 7 (depends on 4)

The agricultural implement of claim 4, wherein the ground sensor communicates to the strut to adjust the amount of force to provide to the row unit to create a furrow of a depth.

### Claim 8 (depends on 4)

The agricultural implement of claim 4, wherein the ground sensor comprises one or more of:
a. a soil characteristic sensor;
b. a visual sensor;
c. a temperature sensor; or
d. a distance determining sensor.

### Claim 9

A down force system for use with a row unit of an agricultural implement, comprising:
a strut having a housing generally fixed in position and connected to a seed meter for planting seed;
a rod movable relative to the housing, the rod connected to at least a furrow opener of a row unit;
wherein the strut provides a down force for the furrow opener; and
a substantially vertical slide member to control movement of the furrow opener in a substantially vertical direction.

### Claim 10 (depends on 9)

The down force system of claim 9, further comprising:
at least one sensor for sensing at least one soil characteristic and operatively connected to the strut;
wherein the at least one sensor monitors a portion of the ground adjacent the row unit to determine the amount of down force needed to create a furrow based upon the at least one soil characteristic; and
an intelligent control connected to the at least one sensor and the strut to determine the amount of down force based upon the at least one soil characteristic.

### Claim 11 (depends on 10)

The down force system of claim 10, wherein the at least one soil characteristic comprises:
a. ground hardness;
b. moisture content;
c. an obstruction;
d. soil temperature; or
e. distance between the at least one sensor and the ground.

### Claim 12 (depends on 11)

The down force system of claim 11, wherein the at least one sensor comprises one or more of:
a. a soil characteristic sensor;
b. a visual sensor;
c. a temperature sensor; or
d. a distance determining sensor.

### Claim 13 (depends on 9)

The down force system of claim 9, further comprising an electric linear actuator operatively connected to a linkage of the row unit and a compressed gas operatively connected to the electric linear actuator to dampen the load acted on the actuator.

### Claim 14 (depends on 9)

The down force system of claim 9, wherein the strut is actuated by air, hydraulic fluid, mechanical actuation, compressible fluid, or some combination thereof.

### Claim 15

A method of providing a down force to a row unit, the method comprising:
connecting a row unit to a toolbar by a strut, the strut having a housing generally fixed in position and connected to a seed meter for planting seed;
connecting a rod to at least a furrow opener of the row unit, the rod movable relative to the housing;
wherein the strut provides a down force for the furrow opener;
acquiring information, via a foresight sensor, related to a field condition;
providing the down force for the furrow opener with the strut while the furrow opener opens a furrow, based upon said acquired information; and
subsequently:
passing seed with a seed tube from the seed meter to the furrow; and
closing the furrow with a closing wheel once the seed is positioned in the furrow;
wherein the strut does not provide down force seed meter, the seed tube, or the closing wheel.

### Claim 16 (depends on 15)

The method of claim 15 further comprising detecting, an obstruction and temporarily disabling the strut in anticipation of interacting with the obstruction.

### Claim 17 (depends on 15)

The method of claim 15, wherein said information is stored as data for a future use.

### Claim 18 (depends on 17)

The method of claim 17, wherein the data is used to preset the strut to provide down force based upon the data.

### Claim 19 (depends on 15)

The method of claim 15, wherein the down force is provided in real time as the information is acquired via the sensor.

### Claim 20 (depends on 15)

The method of claim 15, wherein the acquired information is used to create a field map showing the field conditions to provide information for a future use.
