公开(公告)号：US06810968B2

公开(公告)日：2004-11-02

申请号：US10298989

申请日：2002-11-15

申请人： Brian E. Myers

发明人： Brian E. Myers

IPC分类号： A01B6300

CPC分类号： A01B63/22

摘要： Double acting cylinders on wheel lift structures of an agricultural implement are connected in parallel and include pilot operated check valve structure connected to the base ends of the cylinders to maintain timing of the lift wheel structure even under large differential loads without a rockshaft or other mechanical timing device extending between the wheel structures. The check valve structure prevents unwanted cylinder retraction and provides cylinder lock-up for transport without need for additional valves. When pressure is applied to the rod ends of the cylinders, the check valve structure allows fluid to flow from base ends. Orifices are inserted at the base ends of the cylinders 86 to provide optimum breakoff pressure for the check valves.

公开(公告)号：US06655468B2

公开(公告)日：2003-12-02

申请号：US10155677

申请日：2002-05-24

申请人： Paolo Casali ,  Paul John Brooks

发明人： Paolo Casali ,  Paul John Brooks

IPC分类号： A01B6300

CPC分类号： A01B59/068 ,  A01B59/004 ,  Y10T403/291 ,  Y10T403/295

摘要： A device for attaching farm implements to a tractor incorporates a top link having a central body inserted inside a sleeve. Two handles are integral with the sleeve on opposing sides and having respective projecting ends. A hook is provided on the top link for attachment to a farm implement with the hook being fixed to the central body. A joint, fixed to the central body, connects the top crossbar. A lock device locks the projecting ends of the handles inside respective seats.

公开(公告)号：US06371215B1

公开(公告)日：2002-04-16

申请号：US09794138

申请日：2001-02-28

申请人： Terrance A. Friggstad

发明人： Terrance A. Friggstad

IPC分类号： A01B6300

摘要： A frame for a tillage implement includes a pair of opposing frame sections pivotally connected to a central kingpost for a folding movement between a transversely extending working position and a longitudinally extending transport position. The frame sections have mounted thereto a number of tool sub-frames carrying ground engaging working tools. The tool sub-frames are pivotally movable relative to a rockshaft carried by the frame sections so as to be rotatable between a lowered operative position and a generally vertical raised non-working position. Depth control for the ground engaging tools is accomplished through the rotation of the rockshaft about its pivot lug. The frame sections are connected at the inner end to the kingpost so that the main frame members abut when placed in the working position. Each frame member is supported by a pair of wheel assemblies at the inner and distal ends respectively. The inner wheel assemblies of each frame section is steered by a link connecting the wheel spindle to the hitch member to control the orientation thereof.

公开(公告)号：US06679338B1

公开(公告)日：2004-01-20

申请号：US10031550

申请日：2002-01-18

申请人： Robert Manning Tucker

发明人： Robert Manning Tucker

IPC分类号： A01B6300

CPC分类号： A01B69/026 ,  A01B69/008 ,  A01M7/0089

摘要： A locating system and method for determining the location of an article relative to a crop row. The system comprises a plurality of marker means substantially linearly disposed at intervals substantially parallel to the crop row. A sensor means is provided to generate a sensor signal indicative of the location of the sensor means and hence the article in relation to the crop row.

摘要翻译： 用于确定物品相对于作物行的位置的定位系统和方法。 该系统包括多个标记装置，基本上以基本上平行于作物排的间隔线性地设置。 提供传感器装置以产生指示传感器装置的位置以及因此相对于作物行的制品的传感器信号。

公开(公告)号：US06505688B1

公开(公告)日：2003-01-14

申请号：US09656186

申请日：2000-09-06

申请人： Peter D. Almen

发明人： Peter D. Almen

IPC分类号： A01B6300

CPC分类号： A01B29/046 ,  A01B63/145

摘要： A seed bed packer including a frame, a plurality of wheels connected to the frame, and a soil packing element. The packer also includes a spring shank for transferring weight from the frame to the soil packing element. The spring shank includes a first leg connected to the frame and a second leg connected to the soil packing element. When weight is transferred through the spring shank to the packing element, the first and second legs flex toward one another. The spring shanks are capable of distributing the weight of the frame between the wheels and the packing element, while concurrently providing sufficient flexibility to allow the packing element generally uniformly pack the soil, even over rough terrain.

摘要翻译： 种子床封隔器，包括框架，连接到框架的多个轮子和土壤包装元件。 封隔器还包括用于将重量从框架传递到土壤包装元件的弹簧柄。 弹簧柄包括连接到框架的第一腿部和连接到土壤包装元件的第二腿部。 当重量通过弹簧柄传递到包装元件时，第一和第二腿彼此弯曲。 弹簧杆能够将车架的重量分配在车轮和包装件之间，同时提供足够的柔性，使得包装元件甚至在崎岖的地形上也能均匀包装土壤。

公开(公告)号：US06253859B1

公开(公告)日：2001-07-03

申请号：US09479854

申请日：2000-01-07

申请人： Herbert Coenen

发明人： Herbert Coenen

IPC分类号： A01B6300

CPC分类号： A01B63/1006

摘要： A lifting device for lower steering arms of a tractor has a position recording device (25). The position recording device (25) generates a position signal representing the pivot position of the lower steering arms (2, 3). A piston-cylinder unit (11, 12) acts on the tractor and on the lower steering arm (2, 3). A switching circuit is provided per piston-cylinder unit (11, 12). The switching circuit includes a directional valve (33, 33′) with four ports and four switching positions. In a first position of the directional valve (33, 33′) all ports are blocked. In a second position, the cylinder chamber at the piston end is connected to the pressure agent supply source and the cylinder chamber at the piston rod end is connected to the return line. In a third position, the cylinder chamber at the piston rod end is connected to the pressure agent supply source and the cylinder chamber at the piston end is connected to the return line. In a fourth position, both cylinder chambers are connected to the return line. A switching unit (28, 28′) is provided with a guiding value (F). The guiding value (F) corresponds to the nominal position of the lower steering arm (2, 3). A position signal originates from the position recording device (25, 25′) and represents the respective position of the lower steering arm. A comparator compares the guiding value (F) with the position signal. The switching unit (28, 28′), as a function of the result of the comparison, causes the directional valve (33, 33′) to occupy one of the four positions.

摘要翻译： 用于拖拉机的下转向臂的提升装置具有位置记录装置（25）。 位置记录装置（25）产生表示下转向臂（2,3）的枢转位置的位置信号。 活塞缸单元（11,12）作用于拖拉机和下转向臂（2,3）上。 每个活塞 - 气缸单元（11,12）设置一个开关电路。 开关电路包括具有四个端口和四个开关位置的方向阀（33,33'）。 在方向阀（33,33'）的第一位置，所有端口都被阻塞。 在第二位置，活塞端的气缸室连接到压力源供应源，活塞杆端的气缸室连接到返回管路。 在第三位置，活塞杆端的气缸室连接到压力源供应源，活塞端的气缸室连接到回流管路。 在第四位置，两个气缸室连接到返回管路。 开关单元（28,28'）具有引导值（F）。 引导值（F）对应于下转向臂（2,3）的标称位置。 位置信号来自位置记录装置（25,25'），并且表示下转向臂的相应位置。 比较器将引导值（F）与位置信号进行比较。 根据比较结果，切换单元（28,28'）使得换向阀（33,33'）占据四个位置中的一个位置。

公开(公告)号：US06374923B1

公开(公告)日：2002-04-23

申请号：US09081999

申请日：1998-05-21

申请人： Terrence Friggstad

发明人： Terrence Friggstad

IPC分类号： A01B6300

CPC分类号： A01B73/067 ,  A01B73/00 ,  A01B73/02

摘要： A folding tool bar implement converts from a transversely extending operating configuration to a longitudinally extending transport configuration. The implement includes a rotating rockshaft supported by a wheel assembly at each opposing end thereof. The wheel assembly is formed as a walking beam assembly having an L-shaped member defining perpendicular axes of movement for the wheel assembly. A castering axis is oriented vertically to permit a castering action of the wheel assembly when the rockshaft is rotated into a working configuration. The rotation of the rockshaft re-positions the castering axis to a horizontal orientation when rotated into a transport configuration. A caster lock moves by gravity to lock the wheel assembly from moving about the castering axis when the rockshaft is in the transport configuration. The caster lock includes a latch mounted to the wheel assembly and a pivoted latch tongue mounted on the L-shaped member.

摘要翻译： 折叠工具杆工具从横向延伸的操作构型转换成纵向延伸的输送构型。 该工具包括在其每个相对端处由轮组件支撑的旋转轴。 车轮组件形成为具有限定用于车轮组件的垂直运动轴线的L形构件的步进梁组件。 当轴轴旋转到工作构型时，脚轮轴线垂直取向以允许车轮组件的脚轮作用。 当旋转到输送构造中时，轴的旋转将脚轮轴重新定位成水平取向。 当岩心处于运输结构中时，脚轮锁由重力移动以锁定车轮组件绕着脚轮轴运动。 脚轮锁包括安装到车轮组件上的闩锁和安装在L形构件上的枢转锁舌。

公开(公告)号：US06305478B1

公开(公告)日：2001-10-23

申请号：US09437864

申请日：1999-11-10

申请人： Terrance A. Friggstad

发明人： Terrance A. Friggstad

IPC分类号： A01B6300

CPC分类号： A01B63/32 ,  A01B69/022 ,  A01B73/00 ,  A01B73/02 ,  A01B73/065

摘要： An agricultural implement, having ground engaging tools mounted on subframes that are movable through hydraulic actuators between raised transport and lowered working positions, is provided with a hydraulic circuit in which the actuators are connected in parallel with one another within a grouping of the actuators. The positioning of the ground engaging tools into a lowered working position closes the hydraulic circuit for the group of actuators. The subframes are arranged to float over ground undulations to maintain a common working depth for the ground engaging tools. The vertical movement of any one of the actuators in the common group will force a displacement of a corresponding amount of hydraulic fluid, which will then be shared by all of the remaining actuators in the corresponding group. A depth averaging control for the ground engaging tools and a mechanical headland stop apparatus are also provided for the agricultural implement.

摘要翻译： 具有安装在子框架上的地面接合工具的农具可以在升高的运输和下降的工作位置之间通过液压致动器移动，设置有一个液压回路，其中致动器在一组致动器内彼此并联连接。 地面接合工具在降低的工作位置的定位关闭用于该组致动器的液压回路。 子框架布置成在地面波动上浮动以保持地面接合工具的公共工作深度。 公共组中任何一个致动器的垂直运动将迫使相应量的液压流体的位移，其将被相应组中的所有剩余致动器共享。 还为农具提供了用于地面接合工具和机械岬角停止装置的深度平均控制。

公开(公告)号：US06293352B1

公开(公告)日：2001-09-25

申请号：US09437760

申请日：1999-11-10

申请人： David R. Hundeby ,  Stan W. Ylioja

发明人： David R. Hundeby ,  Stan W. Ylioja

IPC分类号： A01B6300

CPC分类号： A01B63/32 ,  A01B69/022 ,  A01B73/00 ,  A01B73/02 ,  A01B73/065

摘要： An agricultural planter is provided with forwardly folding wing members that allow conversion of the planter from a laterally extending operating position to a compact transport position. To increase stability for the planter, the draw bar telescopes as the wing members are folded forwardly into the transport position. Brace members interconnect a forward portion of the draw bar and the wing members. As the wing members fold forwardly, the brace members are arranged to cause a rearward portion of the draw bar to extend rearwardly from the forward portion and effect the telescopic action in the draw bar. A draw bar hitch lock linkage is provided to keep the draw bar compacted when the wing members are in the operating position. A hitch lock actuator is tied into the hydraulic system for the movement of the wing members into the transport position to permit the telescopic action of the draw bar in concert with the forward folding of the wing members.

摘要翻译： 农业种植机设置有向前折叠的翼构件，其允许种植者从横向延伸的操作位置转换成紧凑的运输位置。 为了增加播种机的稳定性，随着机翼部件向前折叠到传送位置，拉杆望远镜。 支架构件将拉杆的前部和翼构件互连。 当翼构件向前折叠时，支撑构件被布置成使得拉杆的后部从前部向后延伸并且实现拉杆中的伸缩动作。 提供拉杆挂钩锁定联动装置，以在机翼构件处于操作位置时保持牵引杆压紧。 悬挂锁定致动器被连接到液压系统中，以使翼构件运动到运输位置，以允许拉杆的伸缩动作与机翼构件的向前折叠一致。

公开(公告)号：US06745848B1

公开(公告)日：2004-06-08

申请号：US10361723

申请日：2003-02-06

申请人： Brian Thomas Mosdal ,  James Thomas Noonan ,  David Lee Steinlage ,  Garrett Lee Goins ,  Anthony Scott Royer ,  David Alan Payne

发明人： Brian Thomas Mosdal ,  James Thomas Noonan ,  David Lee Steinlage ,  Garrett Lee Goins ,  Anthony Scott Royer ,  David Alan Payne

IPC分类号： A01B6300

CPC分类号： A01B63/22

摘要： A tower and wheel arm assembly for an implement frame includes a pair of identical single piece pivot castings which are selectively connectible at different locations along the frame and provide both wheel arm pivoting and a cylinder anchor tower pivoting. The wheel arm axle extends between the castings pivots within cylindrical cavities located in the castings. External cylindrical surfaces concentric with the cavities rotatably support a pair of tower plates which include circular openings received over the external cylindrical surfaces. Casting symmetry allows the same part to be used interchangeably for either the right-hand or left-hand support.

摘要翻译： 用于工具框架的塔架和轮臂组件包括一对相同的单件枢轴铸件，其可在沿着框架的不同位置处选择性地连接，并且提供两个轮臂枢转和气缸锚定塔枢转。 轮臂轴在位于铸件中的圆柱形空腔内的铸件枢轴之间延伸。 与空腔同心的外部圆柱形表面可旋转地支撑一对塔板，其包括容纳在外部圆柱形表面上的圆形开口。 铸造对称性允许相同的部件可以互换地用于右手或左手支撑。