In one embodiment, an in-line tandem axle assembly comprising: a tandem wheel arm; a pair of wheel connecting assemblies, each comprising a hub and a spindle; a pair of mounts coupled respectively to the pair of wheel connecting assemblies; a pair of wheels coupled respectively to the pair of wheel connecting assemblies, the pair of wheels separated by the tandem wheel arm and in a same fore-and-aft position; and plural pairs of parallel links of equal length pivotably mounted to the pair of mounts and pivotably mounted to the tandem wheel arm.

In one embodiment, an in-line tandem axle assembly comprising: a tandem wheel arm; a pair of wheel connecting assemblies, each comprising a hub and a spindle; a pair of mounts coupled respectively to the pair of wheel connecting assemblies; a pair of wheels coupled respectively to the pair of wheel connecting assemblies, the pair of wheels separated by the tandem wheel arm and in a same fore-and-aft position; and plural pairs of parallel links of equal length pivotably mounted to the pair of mounts and pivotably mounted to the tandem wheel arm.

A row unit, including a frame with an upper portion and a lower portion, the upper portion having a parallel linkage, the lower portion having a gauge wheel depth control linkage, the gauge wheel depth control linkage coupled to plural gauge wheels; a first device coupled to the upper portion and configured to provide an adjustable down force; and an electric actuator coupled to the gauge wheel depth control linkage, the electric actuator configured to provide adjustable positioning of the gauge wheels.

A row unit, including a frame with an upper portion and a lower portion, the upper portion having a parallel linkage, the lower portion having a gauge wheel depth control linkage, the gauge wheel depth control linkage coupled to plural gauge wheels; a first device coupled to the upper portion and configured to provide an adjustable down force; and an electric actuator coupled to the gauge wheel depth control linkage, the electric actuator configured to provide adjustable positioning of the gauge wheels.

An implement frame having a carriage frame for coupling to a towing vehicle and wheels to support the frame for movement over a ground surface. A pivot frame is rotationally mounted to the carriage frame and a lift assembly is coupled to the pivot frame via a shift assembly. A tool bar is mounted to the lift assembly. The shift assembly moves the tool bar forward as it is moved from the field use position to the transport position. The wheels are mounted to swing arms to move the wheels inward for a narrow transport position. All motion is accomplished through actuators, such as hydraulic cylinders, to automate the process making it quick and easy.

The invention relates to an agricultural implement having an auxiliary chassis, which implement is supported by the three-point hydraulics of a towing vehicle and has an additional support wheel, on which a spring force acts, to improve the steerability of the vehicle. A dead center mechanism resiliently lifts the support wheel when the implement is in the working position.

System for adjusting the depth of a trench opened by a row unit (10) of an agricultural planter. The row unit (10) includes a trench depth adjustment assembly (90R) configured to modify the trench depth. The trench depth adjustment assembly (90R) includes a depth adjustment body (3044) pivotally connected via a pivot (92) to a frame member (14) of the row unit (10). An electric motor (3030) is operable to cause rotation of a shaft (3034) operably coupled with the depth adjustment body (3044), whereby rotation of the shaft (3034) causes the depth adjustment body (3044) to pivotally move about the pivot (92) thereby changing a position of contact of the depth adjustment body (3044) with a gauge wheel arm (54), thus changing the amount of upward travel of the gauge wheel (50) with respect to a trench opening disc (62) and thus the depth of the trench.

System for adjusting the depth of a trench opened by a row unit (10) of an agricultural planter. The row unit (10) includes a trench depth adjustment assembly (90R) configured to modify the trench depth. The trench depth adjustment assembly (90R) includes a depth adjustment body (3044) pivotally connected via a pivot (92) to a frame member (14) of the row unit (10). An electric motor (3030) is operable to cause rotation of a shaft (3034) operably coupled with the depth adjustment body (3044), whereby rotation of the shaft (3034) causes the depth adjustment body (3044) to pivotally move about the pivot (92) thereby changing a position of contact of the depth adjustment body (3044) with a gauge wheel arm (54), thus changing the amount of upward travel of the gauge wheel (50) with respect to a trench opening disc (62) and thus the depth of the trench.

An agricultural implement includes a sensor supported on the frame. The sensor, in turn, is configured to emit output signals for refection off of a field surface of a field and detect reflections of the output signals as return signals. Moreover, the agricultural implement includes a computing system communicatively coupled to the sensor. In this respect, the computing system configured to receive data associated with the detected reflections from the sensor and fit a line or plane to received data. In addition, the computing system is configured to determine at least one of an orientation of the frame or a distance between the frame and the field surface based on the fitted line or plane.

An agricultural implement includes a sensor supported on the frame. The sensor, in turn, is configured to emit output signals for refection off of a field surface of a field and detect reflections of the output signals as return signals. Moreover, the agricultural implement includes a computing system communicatively coupled to the sensor. In this respect, the computing system configured to receive data associated with the detected reflections from the sensor and fit a line or plane to received data. In addition, the computing system is configured to determine at least one of an orientation of the frame or a distance between the frame and the field surface based on the fitted line or plane.