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    HARROW ATTACHMENT AND IMPLEMENT WITH SUCH AN ATTACHMENT
    2.
    发明公开
    HARROW ATTACHMENT AND IMPLEMENT WITH SUCH AN ATTACHMENT 审中-公开
    耙附着和执行与此附件

    公开(公告)号：EP3146820A1

    公开(公告)日：2017-03-29

    申请号：EP16189705.3

    申请日：2016-09-20

    申请人： Deere & Company

    发明人： Moreno, Humberto ,  Merkle, Jerry R. ,  Blauwet, Bryan D. ,  Becker, Shawn J. ,  Nefzger, Jeremy ,  Janelle, Luc ,  Steinlage, David L.

    IPC分类号： A01B19/04 ,  A01B23/04 ,  A01B49/02

    CPC分类号： A01B61/046 ,  A01B19/02 ,  A01B19/04 ,  A01B23/043 ,  A01B49/02 ,  A01B63/008 ,  A01B63/24 ,  A01B73/044

    摘要： A harrow attachment (400, 500) for a tillage implement is disclosed. The harrow attachment (400, 500), comprising: a harrow drawbar (300, 300') configured to be mountable to a frame member (130) of a tillage implement; at least one harrow rank having a rank bar (410, 510) supporting a plurality of harrowing tools; a pivot link (450, 452, 540, 542) pivotally coupling the at least one harrow rank to the drawbar (300, 300') to allow the at least one harrow rank to trip by pivoting upward toward the drawbar (300, 300') from a home position in which the at least one harrow rank is farthest away from the drawbar (300, 300'); a downforce spring (560) coupled to the drawbar (300, 300') and configured to be in a fixed length state when the at least one harrow rank is in the home position and in a variable length state when the at least one harrow rank is tripped, when in the variable length state the downforce spring applies a biasing force to the at least one harrow rank away from the drawbar (300, 300'), and when in the fixed length state the biasing force is removed; and an adjustment mechanism coupling the downforce spring (560) to one of the at least one harrow rank and the pivot link (450, 452, 540, 542) in one of a plurality of adjustment locations (570A - 570C) in each of which the at least one harrow rank is in the home position and the downforce spring (560) is in the fixed length state. Further, a tillage implement with such harrow attachment (400, 500) is disclosed.

    摘要翻译： 公开了用于耕种用具的耙子附件（400,500）。 所述耙连接件（400,500）包括：耙牵引杆（300,300'），所述耙牵引杆构造成可安装到耕作用具的框架构件（130）上; 至少一个耙排具有支撑多个耕耙工具的排列杆（410,510）; 枢转连杆（450,452,540,542），所述枢转连杆将所述至少一个耙位枢转地联接到所述牵引杆（300,300'），以允许所述至少一个耙位通过朝向所述牵引杆（300,300'）向上枢转而跳闸， ）从其中所述至少一个耙位距离所述牵引杆（300,300'）最远的起始位置移动; 联接到所述牵引杆（300,300'）的下压力弹簧（560），所述下压力弹簧（560）被配置为当所述至少一个耙位处于所述初始位置时处于固定长度状态，并且当所述至少一个耙位 在处于可变长度状态时，所述下压力弹簧向离开所述牵引杆（300,300'）的所述至少一个耙排施加偏置力，并且当处于所述固定长度状态时，所述偏置力被移除; 以及调节机构，其将下压力弹簧（560）联接到多个调节位置（570A-570C）中的一个调节位置（570A-570C）中的至少一个耙位和枢转连杆（450,452,540,542）中的一个，其中每个调节位置 至少一个耙位处于初始位置，并且下压力弹簧（560）处于固定长度状态。 此外，公开了具有这种耙连接件（400,500）的耕作工具。