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    Coupling device for connecting a wheeled field implement to a tractor
    11.
    发明授权
    Coupling device for connecting a wheeled field implement to a tractor 失效
    用于将轮式工具连接到拖拉机的联接装置

    公开(公告)号：US4838358A

    公开(公告)日：1989-06-13

    申请号：US14065

    申请日：1987-01-30

    申请人： Jan Freudendahl

    发明人： Jan Freudendahl

    IPC分类号： A01B59/04 ,  A01D67/00

    CPC分类号： A01B59/04 ,  A01D67/005

    摘要： A coupling device for connecting a wheeled agricultural implement having driven working members to a tractor includes a towing connection and a hydraulic motive power transfer with a hydraulic pump. The hydraulic pump is connected to the power take-off of the tractor and to a hose connection connected at its other end with a hydraulic motor on the implement. For pivotal coupling of a drawbar connected with the implement, the towing connection includes a towing device permanently connected with the drawbar adapted to be rigidly, but releasably connected with the ordinary towing means of the tractor, e.g. the lowermost lift arms. To improve its maneuvering ability, the towing device is provided with a linkage positioned behind the rearmost point of the tractor and pivotally connected with the drawbar.

    摘要翻译： PCT No.PCT / DK86 / 00057 Sec。 371日期1987年1月30日 102（e）1987年1月30日PCT PCT日期：1986年5月26日PCT公布。 出版物WO86 / 06927 日本1986年12月4日。用于将具有从动工作构件的轮式农用工具连接到拖拉机的联接装置包括牵引连接和带有液压泵的液压动力传递。 液压泵连接到拖拉机的动力输送机和连接到其另一端的软管连接件上的液压马达。 对于与工具连接的牵引杆的枢转联接，牵引连接包括与牵引杆永久连接的牵引装置，其适于刚性地，但可与拖拉机的普通牵引装置例如可拆卸地连接。 最下面的提升臂。 为了提高其操纵能力，牵引装置设置有定位在拖拉机的最后点后面并与牵引杆枢转连接的连杆。

    Hitch assembly
    12.
    发明授权
    Hitch assembly 失效
    挂钩装配

    公开(公告)号：US4391334A

    公开(公告)日：1983-07-05

    申请号：US222127

    申请日：1981-01-02

    申请人： Lawrence K. Carrick

    发明人： Lawrence K. Carrick

    IPC分类号： A01B59/04

    CPC分类号： A01B59/04

    摘要： A hitch assembly for interconnecting an agricultural tool with a towing vehicle to allow relative angular vertical articulation between the tool and vehicle during use and to lock rigidly with the tool for transport. The hitch includes two pivotably interconnected frames. A first wheel supported frame is adapted to be connected to the towing vehicle. The second frame is adapted to be rigidly connected to the tool. A control mechanism operates from the vehicle hydraulic system and is connected between the frames. The mechanism is operative to lock the frames together rigidly or to unlock the frames for relatively free pivotal movement. The control means includes provisions for tipping the tool forward and downward as it is being lowered to a ground-working, operative position. The effective height of the frames can also be varied to correspond with the height of the tool at its ground-working operative position.

    摘要翻译： 用于将农具与牵引车互连的搭接组件，以允许在使用期间在工具和车辆之间进行相对角度的垂直铰接并且用工具进行刚性锁定以进行运输。 挂钩包括两个可枢转互连的框架。 第一轮支撑框架适于连接到牵引车辆。 第二框架适于刚性地连接到工具。 控制机构从车辆液压系统操作并连接在车架之间。 该机构用于将框架刚性地锁定在一起，或者为了相对自由的枢转运动而解锁框架。 控制装置包括当工具下降到地面工作的操作位置时将工具向前和向下倾斜的装置。 框架的有效高度也可以变化，以对应于工具在其地面工作操作位置的高度。

    Implement and hitch therefor
    13.
    发明授权
    Implement and hitch therefor 失效
    实施和处理

    公开(公告)号：US3756203A

    公开(公告)日：1973-09-04

    申请号：US3756203D

    申请日：1972-02-22

    申请人： DEDOES A

    发明人： DEDOES A

    IPC分类号： A01B29/04 ,  A01B59/04 ,  A01B59/042 ,  A01B63/114 ,  A01B63/00

    CPC分类号： A01B63/1145 ,  A01B29/045 ,  A01B59/04 ,  A01B59/042

    摘要： A draw bar and hitch connection for coupling a plurality of substantially identical ground working implements to a utility vehicle and including means for transferring a portion of the weight of the vehicle to the implement.

    摘要翻译： 一种用于将多个基本上相同的地面作业工具耦合到多用途车辆的牵引杆和牵引连接，并且包括用于将车辆的重量的一部分转移到工具的装置。

    Drawbar and hitch connection for tractor drawn implement
    14.
    发明授权
    Drawbar and hitch connection for tractor drawn implement 失效
    牵引车和牵引车牵引车连接

    公开(公告)号：US3643746A

    公开(公告)日：1972-02-22

    申请号：US3643746D

    申请日：1970-01-13

    申请人： DEDOES ARNOLD A

    发明人： DEDOES ARNOLD A

    IPC分类号： A01B29/04 ,  A01B59/04 ,  A01B59/042 ,  A01B63/114 ,  A01B45/02 ,  A01B63/102

    CPC分类号： A01B63/1145 ,  A01B29/045 ,  A01B59/04 ,  A01B59/042

    摘要： A drawbar and hitch connection for coupling implements to a tractor and including means for utilizing the power lift unit of the tractor to transfer a portion of the weight of the tractor to the implement and also including means for disconnecting the implement from the tractor without disturbing the weight transfer means.

    摘要翻译： 用于将工具连接到拖拉机的牵引杆和牵引连接器，并且包括用于利用拖拉机的动力提升单元将拖拉机的重量的一部分转移到工具的装置，并且还包括用于将工具与拖拉机断开连接而不干扰 重量转移手段。

    HYDRAULIC ASSEMBLY FOR SUPPLYING AN ATTACHMENT WITH HYDRAULIC POWER
    18.
    发明公开
    HYDRAULIC ASSEMBLY FOR SUPPLYING AN ATTACHMENT WITH HYDRAULIC POWER 审中-公开

    公开(公告)号：US20240288008A1

    公开(公告)日：2024-08-29

    申请号：US18443698

    申请日：2024-02-16

    申请人： DEERE & COMPANY

    发明人： MANUEL BILLICH

    IPC分类号： F15B13/02 ,  A01B59/04 ,  F15B13/16

    CPC分类号： F15B13/026 ,  A01B59/04 ,  F15B13/16

    摘要： A hydraulic assembly for supplying an attachment with hydraulic power of an agricultural towing vehicle, including a hydraulic work port for the passage of a hydraulic medium delivered by a pump, a pressure port, hydraulically connected to the work port, for delivering hydraulic power to the attachment, a hydraulic feedback port for receiving a hydraulic feedback pressure from the attachment, a signal port for delivering a feedback signal in dependence on the hydraulic feedback pressure, and a pressure sensor, between the hydraulic feedback port and the signal port, for conversion of the feedback pressure into the feedback signal.

    ROW UNIT OVERLAP AVOIDANCE SYSTEM AND METHOD
    19.
    发明公开
    ROW UNIT OVERLAP AVOIDANCE SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20230397522A1

    公开(公告)日：2023-12-14

    申请号：US17836544

    申请日：2022-06-09

    申请人： Deere & Company

    发明人： Dnyanesh K. Dhobale ,  Elijah B. Garner ,  Andrew W. Harmon

    IPC分类号： A01C5/06 ,  A01B59/04 ,  A01B69/00

    CPC分类号： A01C5/064 ,  A01B59/04 ,  A01B69/007

    摘要： An agricultural planting system comprises an implement configured to be coupled to a work machine, row units of the implement, and first and second pairs of wheels configured to pivot and rotate to facilitate a turning operation during forward travel of the planting system. The row units are arranged in first and second ranks depending on their forward-aft placement. Furrow openers of the first rank of row units are configured to contact the ground along a first contact line, and furrow openers of the second rank of row units are configured to contact the ground along a second contact line. During a turning operation, the implement turns about a turning center axis, and the first and second pairs of wheels pivot in opposite directions, which allows the first and second contact lines to remain equidistant from the turning center axis during the turn.