Trailing arm device and assembly with parallel linkage

A trailing arm assembly for connection with a row unit of an agricultural planter, the trailing arm assembly comprising:

• a planter frame;
• a parallel linkage connected to the planter frame;
• a closer frame pivotally connected to the planter frame via the parallel linkage such that the planter frame maintains a parallel orientation with respect to the closer frame;
• a walking arm assembly pivotally connected to the closer frame, the walking arm assembly including an articulating bracket connected to the parallel linkage at pivot assembly, the pivot assembly including a torsion axle configured to resist a rotation of the articulating bracket about the pivot assembly.

A walking arm assembly for connection to a row unit of an agricultural planter, the walking arm assembly comprising:

• an articulating bracket pivotally connected to a frame of the row unit via a torsion axle assembly at a pivot assembly disposed between first and second opposing ends of the articulating bracket;
• a first closing wheel rotationally mounted toward the first end;
• and
• a second closing wheel rotationally mounted toward the second end;
• wherein the torsion axle assembly comprises a biased axle configured to resist a rotation of the articulating bracket about the torsion axle assembly.