Trailing arm device and assembly with parallel linkage

    公开(公告)号:US11723301B2

    公开(公告)日:2023-08-15

    申请号:US17068652

    申请日:2020-10-12

    IPC分类号: A01C7/06 A01C5/06 A01C7/20

    CPC分类号: A01C7/06 A01C5/068 A01C7/208

    摘要: A trailing arm assembly includes a frame bracket attachable to a planter towing frame, a first frame, and a four bar parallel linkage connecting the frame bracket and the first frame with a first pivot and a second pivot on the frame bracket and a first pivot and a second pivot on the first frame. The trailing arm assembly also includes an adjustable biasing member extending from the parallel linkage to the frame bracket. The parallel linkage is connected between the first frame and the frame bracket such that the parallel linkage maintains a parallel orientation of the first frame. The adjustable biasing member is adjustably connected to a portion of the parallel linkage.