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公开(公告)号：US4771856A
公开(公告)日：1988-09-20
申请号：US053983
申请日：1987-05-26
申请人： Wayne R. Hutchison , John B. Kuhn
发明人： Wayne R. Hutchison , John B. Kuhn
CPC分类号： F16H37/021 , F16H63/067 , Y10T74/20012 , Y10T74/20018
摘要： An improved vehicle control system for a vehicle having an engine which produces output torque through an output sheave and a transaxle mounted to the vehicle's frame, the transaxle being selectively operational in forward, neutral and reverse modes in response to a mode selection link operatively connected to the transaxle. The transaxle functions as a gear box having a single gear ratio between the input sheave and the drive axles in both the forward and reverse operating modes, a transaxle and a brake. The output sheave of the engine is in communication with the input sheave through a first and second belt drivingly mounted to a plurality of sheaves and a variator such that an increase in tension on a first belt causes the variator to increase the rate of rotation of a second belt. A speed range sheave mounted to an arm is operatively connected to the first belt. A single lever is mounted to the vehicle such that the arm is selectively positionable to effect the rotation rate of the second belt through the variator which determined the speed of the vehicle. The position of the arm is also altered by displacement of a clutch rod in such a manner that when the clutch rod is returned to the engaged position, the vehicle will resume to its previously selected speed.
摘要翻译： 一种用于车辆的改进的车辆控制系统，其具有通过安装到车辆框架的输出滑轮和变速驱动器产生输出转矩的发动机，响应于可操作地连接到车辆的模式选择链路，所述变速驱动桥选择性地以前进，中立和反向模式操作 驱动桥 变速驱动桥作为在前进和后退操作模式中的输入滑轮和驱动轴之间具有单个传动比的变速箱，变速器和制动器。 发动机的输出滑轮通过驱动地安装到多个滑轮和变速器的第一和第二皮带与输入滑轮连通，使得第一皮带上的张力增加导致变速器增加旋转速率 第二腰带 安装到臂的速度范围滑轮可操作地连接到第一皮带。 单个杆被安装到车辆上，使得臂可选择性地定位以通过确定车辆速度的变速器来实现第二带的旋转速度。 通过离合器杆的位移也可以改变臂的位置，使得当离合器杆返回到接合位置时，车辆将恢复到其先前选择的速度。
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公开(公告)号：US5609011A
公开(公告)日：1997-03-11
申请号：US539901
申请日：1995-10-06
CPC分类号： A01D34/005 , A01D34/826 , A01D2101/00 , Y10S56/17
摘要： A mowing mechanism having a spindle rotatively driven by a power source, a blade having a radially inner portion coupled for rotation with the spindle and a radially outer portion for cutting vegetation, a housing within which the blade rotates, and a disc operatively carried within the housing for rotation with the blade and having a radially outer portion spaced above the blade. The disc includes an inner portion extending radially inwardly from the outer portion to a position proximate the blade, the inner and outer portions of the disc serving to confine air and clippings near the outer portion of the blade. The rotating disc prevents accumulation of the grass clippings beneath the disc and housing, and enhances airflow within the housing due to viscous drag or friction between the disc and the air within the housing. Deflectors carried by the disc are designed to further enhance airflows and generally deflect clippings back toward the blade for mulching.
摘要翻译： 一种具有由动力源旋转驱动的主轴的切割机构，具有联接成与所述心轴一起旋转的径向内部的刀片和用于切割植被的径向外部部分，所述刀片旋转的壳体，以及可操作地承载在所述刀片内的盘 用于与叶片一起旋转并具有在叶片上方间隔开的径向外部的壳体。 盘包括从外部径向向内延伸到靠近叶片的位置的内部部分，盘的内部和外部部分用于限制空气和夹在叶片的外部附近。 旋转盘防止在盘和壳体下方的草屑的积聚，并且由于盘和壳体内的空气之间的粘性阻力或摩擦而增强了壳体内的气流。 设计了由盘承载的偏转器，以进一步增强气流，并通常将夹子偏转回朝向叶片进行覆盖。
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公开(公告)号：US5012632A
公开(公告)日：1991-05-07
申请号：US488197
申请日：1990-03-05
IPC分类号： A01D34/76
摘要： A mower having a belt tensioner that includes a belt engaging primary pulley swingably supported by a primary arm. A rod coupled to the arm carries a spring that acts to push the pulley into engagement with the belt. The rod acts to pull the pulley away from the belt to release the tension in the belt for removal of the belt. A handle attached to the rod is turned by the operator to positively swing the pulley away from the belt. The handle may also be gripped by the operator's hand to lift that portion of the deck during operation to avoid gouging irregular ground conditions or striking obstructions.
摘要翻译： 一种具有带张紧器的割草机，其包括由主臂可摆动地支撑的主带轮接合的带。 联接到臂的杆承载弹簧，该弹簧用于推动滑轮与皮带接合。 杆用于将皮带轮拉离皮带以释放皮带中的张力以便移除皮带。 安装在杆上的手柄由操作者转动，使皮带轮远离皮带。 在操作过程中，手柄也可能被操作者的手握住以提升甲板的该部分，以避免不规则的地面条件或引起障碍物的刨花。
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公开(公告)号：US4440415A
公开(公告)日：1984-04-03
申请号：US450877
申请日：1982-12-20
申请人： Lloyd A. Wykhuis , John B. Kuhn
发明人： Lloyd A. Wykhuis , John B. Kuhn
摘要： A hydraulic lift arm assembly for vehicle including parallel sidewalls between which an axle tube is fixably mounted. The lift arm assembly is rotatably mounted around the axle tube.
摘要翻译： 一种用于车辆的液压提升臂组件，包括平行的侧壁，轴管可固定地安装在该侧壁之间。 提升臂组件围绕轴管可旋转地安装。
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公开(公告)号：US5042882A
公开(公告)日：1991-08-27
申请号：US487359
申请日：1990-03-01
IPC分类号： B60B37/10
CPC分类号： B60B37/10
摘要： A mechanism for mounting a wheel to a mower deck having a mounting arm carrying a bolt. First bushings fitted within the wheel rotate about a sleeve fixed to the bolt. Second bushings adjacent the first bushings transfer axial forces from the wheel to the mounting arm. The second bushing is recessed within the first bushings in one embodiment, and within the wheel in another embodiment. Seals are formed between the second bushing and the first bushing in one embodiment, and between the second bushing and the wheel in the other embodiment in order to keep dirt and debris from coming between the contacting surfaces during operation.
摘要翻译： 用于将轮安装到具有承载螺栓的安装臂的割草机甲板上的机构。 安装在车轮内的第一衬套围绕固定在螺栓上的套筒旋转。 与第一衬套相邻的第二衬套将从轮到安装臂的轴向力传递。 在一个实施例中，第二衬套凹入第一衬套内，在另一个实施例中在第二衬套内。 在一个实施例中，在第二衬套和第一衬套之间形成密封件，并且在另一实施例中在第二衬套和车轮之间形成密封件，以便在操作期间保持灰尘和碎屑不在接触表面之间。
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公开(公告)号：US4531757A
公开(公告)日：1985-07-30
申请号：US588829
申请日：1984-03-12
申请人： John B. Kuhn
发明人： John B. Kuhn
摘要： A tractor hitch assembly including clamps mounted to the lower frame portion of a tractor. Each clamp comprised of a lug having a plurality of vertically elongated seats, and a clip pivotally mounted to the lug and having a plurality of vertically aligned C-shaped recesses. Each C-shape recess is cooperatively positioned with a respective seat to capture a pin associated with an implement support assembly.
摘要翻译： 拖拉机牵引组件，其包括安装在拖拉机的下框架部分上的夹具。 每个夹具包括具有多个垂直细长的座的凸耳和枢转地安装到凸耳并具有多个垂直对齐的C形凹部的夹子。 每个C形凹槽与相应的座位配合地定位以捕获与工具支撑组件相关联的销。
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公开(公告)号：US4512414A
公开(公告)日：1985-04-23
申请号：US570721
申请日：1984-01-13
申请人： John B. Kuhn , Henry J. Lange
发明人： John B. Kuhn , Henry J. Lange
CPC分类号： A01B33/082
摘要： A rotary tiller having a housing defining a hydraulic fluid reservoir and rotatably support a tine shaft. A hydraulic motor is mounted to the housing in driving communication with the tine shaft. A pump unit is remotely located on an associated tractor. The reservoir received spent hydraulic fluid from the motor, cools the fluid, and surrenders the cooled fluid to the pump unit.
摘要翻译： 一种具有限定液压流体储存器并可旋转地支撑齿轴的壳体的旋转耕作机。 液压马达安装到壳体上，与齿轴驱动连通。 泵单元远程位于相关的拖拉机上。 储存器从马达接收废液压油，冷却流体，并将冷却的流体投入泵装置。
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公开(公告)号：US5267429A
公开(公告)日：1993-12-07
申请号：US917542
申请日：1992-07-21
申请人： Daniel J. Kettler , John B. Kuhn , Dean W. Benter
发明人： Daniel J. Kettler , John B. Kuhn , Dean W. Benter
CPC分类号： A01D34/005 , A01D34/71 , A01D2101/00 , A01D34/63 , Y10S56/20
摘要： A mechanism including a plurality of baffles positioned within a mower housing between the mower blades and a rear discharge outlet, including a first wall adjacent the edge of a respective blade and which acts to define the chamber within which the blade rotates, a second wall extending rearwardly from the first wall and defining chutes which extend between the chambers and the rear discharge outlet, and third surfaces which act to enclose the space between the first and second walls to thereby prevent air and clippings from accumulating there. The chutes generally converge at the rear outlet. Ramps are positionable within the chutes for changing the mower to a mulching mode, and include a fourth wall or surface positioned in the entrance to the chute for partially blocking air and clippings from entering the chute. A fifth surface extends rearwardly from the edge of the fourth surface to the discharge outlet. A deflector is positionable within the housing and acts to channel clippings downwardly into the blade for re-cutting at a first portion, reduce the effective volume within the chamber at a second portion, and increase the vacuuming effect at a third portion. A first blade includes a plurality of upstanding nubs which are received in respective openings formed in the second blade, and act to couple the second blade for rotation with the first blade.
摘要翻译： 一种机构，包括多个挡板，其位于割草机壳体内的割草机叶片和后排出口之间，包括与相应叶片的边缘相邻的第一壁，并且用于限定叶片旋转的室;第二壁延伸 从第一壁向后并且限定在室和后排出口之间延伸的滑槽，以及用于封闭第一和第二壁之间的空间的第三表面，从而防止空气和夹子在那里积聚。 滑槽通常会聚在后出口处。 坡道可在滑槽内定位，用于将割草机更换为覆盖模式，并且包括位于滑槽入口中的第四壁或表面，用于部分阻挡空气和夹子进入滑槽。 第五表面从第四表面的边缘向后延伸到排出口。 偏转器可定位在壳体内并且用于将夹子向下引导到叶片中以在第一部分处重新切割，在第二部分减小腔室内的有效体积，并且在第三部分增加抽真空效果。 第一刀片包括多个直立的凸块，其被接收在形成在第二刀片中的相应开口中，并且用于将第二刀片与第一刀片联接。
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公开(公告)号：US5191756A
公开(公告)日：1993-03-09
申请号：US829639
申请日：1992-02-03
申请人： John B. Kuhn
发明人： John B. Kuhn
CPC分类号： A01D34/005 , A01D34/82 , A01D2101/00
摘要： A mulching mower apparatus for use in a mover having a housing that includes a discharge outlet. A guide mechanism is provided for guiding air and vegetation clippings radially inwardly and downwardly towards the blade for re-cutting, and a blocking mechanism is provided for partially blocking the housings discharge outlet to thereby allow a portion of the air circulating within the housing to escape and increase the lifting of the vegetation to be cut.
摘要翻译： 一种用于具有包括排出口的壳体的移动器的覆盖式割草机装置。 提供引导机构，用于引导空气和植被剪切器径向向内和向下朝向叶片进行重新切割，并且提供阻塞机构用于部分地阻挡壳体排出口，从而允许在壳体内循环的一部分空气逸出 并增加要切割的植被的提升。
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公开(公告)号：US4441306A
公开(公告)日：1984-04-10
申请号：US413910
申请日：1982-09-01
申请人： John B. Kuhn
发明人： John B. Kuhn
CPC分类号： A01D34/74 , A01D2101/00 , Y10S56/22
摘要： A vehicle includes hydraulically actuated lift arms which are pivotally connected to central locations of the top of a mower blade housing and are operative for moving the mower vertically between working and transport positions. When the mower is in its working position, a pair of caster wheels suppports the front of the blade housing while the rear of the housing is supported from the lift arms by a pair of suspension assemblies. Each of the suspension assemblies includes a fore-and-aft extending adjuster screw which is operable for effecting selected fore-and-aft movement of an adjuster bracket, which is connected to an associated lift arm by a chain, so as to cause the rear end of the housing to be adjusted vertically. These suspension assemblies cooperate with adjustment mechanisms associated with the caster wheels to place the mower at different cutting heights.
摘要翻译： 车辆包括液压致动提升臂，其枢转地连接到割草机叶片壳体的顶部的中心位置，并且可操作用于在工作位置和运输位置之间垂直移动割草机。 当割草机处于其工作位置时，一对脚轮支撑着叶片壳体的前部，而壳体的后部由一对悬挂组件从提升臂支撑。 每个悬架组件包括前后延伸的调节螺丝，其可操作以实现调节器支架的选定的前后运动，该调节器支架通过链条连接到相关联的提升臂，以便使后部 外壳端部垂直调节。 这些悬挂组件与与脚轮相关联的调节机构配合，以将割草机放置在不同的切割高度。
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