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公开(公告)号：US4543850A
公开(公告)日：1985-10-01
申请号：US506055
申请日：1983-06-20
CPC分类号： G05G1/445 , B60K26/00 , G05G5/06 , Y10T74/20055 , Y10T74/20528 , Y10T74/20636 , Y10T74/20684 , Y10T74/20708 , Y10T74/20888
摘要： A neutral lock mechanism for a direction and speed control pedal. Forward or down-toe motion on the pedal produces forward movement of a vehicle and rear, or down-heel, motion produces rear movement, while increased displacement of the pedal in either direction will produce an increase in speed. The neutral lock mechanism includes a latch pivotally connected to the pedal and spring loaded to a latching position in which the latch will engage the floor plate of the vehicle and prevent pivotal movement of the pedal. A lever is connected to the latch and projects upwardly through an opening in the pedal. The operator's foot, when in a normal operating position, will depress the lever and release the latch while mere accidental engagement of the operator's foot with the pedal will not release the latch and will retain the pedal in the neutral lock position.
摘要翻译： 用于方向和速度控制踏板的中立锁定机构。 踏板上的向前或向下脚趾运动产生车辆的向前运动，后方或后跟运动产生后部运动，而踏板在任一方向的增加的位移将产生速度的增加。 中性锁定机构包括枢转地连接到踏板的闩锁和加载到闩锁位置的弹簧，在该闩锁位置中闩锁将接合车辆的底板并防止踏板的枢转运动。 杠杆连接到闩锁并向上突出通过踏板的开口。 当操作者的脚处于正常操作位置时，将按压杆并释放闩锁，而操作者的脚与踏板的意外接合将不会释放闩锁并且将踏板保持在中立锁定位置。
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公开(公告)号：US07798242B2
公开(公告)日：2010-09-21
申请号：US11347501
申请日：2006-02-03
申请人： Richard D. Bednar
发明人： Richard D. Bednar
IPC分类号： A01B45/04
CPC分类号： A01G20/12
摘要： A shift interlock mechanism for automatically shifting a sod cutter into a low gear when a cutting blade is lowered into the ground and automatically raising the cutting blade when the sod cutter is shifted into a high gear. The mechanism may include a cutting blade lever. The cutting blade lever may include a cam member which engages the shift lever creating cam action when the cutting blade handle is raised to the up position. When the cutting blade lever is moved to lower the cutting blade, the cam member moves the shift lever into a low gear. When the cutting blade handle is in the up position and the cutting blade has been lowered, the shift lever will oppose the cam member and create an opposite cam action, thereby raising the blade, when the shifter is moved into a high gear.
摘要翻译： 一种换档联锁机构，用于当切割刀片下降到地面中时自动将刀柄切割器移动到低档，并且当刀片切割器移入高档时自动升高切割刀片。 该机构可以包括切割刀杆。 切割刀柄可以包括凸轮构件，该凸轮构件在切割刀柄被升高到上升位置时接合换档杆而产生凸轮动作。 当切割刀片杆移动以降低切割刀片时，凸轮部件将变速杆移动到低档。 当切割刀柄处于向上位置并且切割刀片已经下降时，换档杆将与凸轮构件相对并产生相反的凸轮动作，从而当换档器移动到高档时升高刀片。
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公开(公告)号：US5402110A
公开(公告)日：1995-03-28
申请号：US191518
申请日：1994-02-03
IPC分类号： A01D34/44 , A01D69/02 , A01D75/30 , G01F23/72 , G01F23/74 , G01F25/00 , G01M3/32 , G08B21/00
CPC分类号： G01M3/3245 , A01D69/03 , G01F23/72 , G01F23/74 , G01F25/0061
摘要： A system such as one for detecting when a hydraulic fluid system adapted to a turf care machine, has developed a leak and to warn the machine operator of such a leak before an appreciable amount of hydraulic fluid is allowed to leak from the system. The system includes a reservoir for holding a quantity of hydraulic fluid. The reservoir is connected via a connecting tube or hose to an expansion tank mounted adjacent to the reservoir. The expansion tank includes a fitting having an elongated tube extending down into the expansion tank. The end of this tube is maintained substantially below the level of hydraulic fluid in the expansion tank during operation of the turf care machine to which it is attached. As the machine is operated, the hydraulic fluid expands with rising temperature, and the connecting tube communicates the expanding fluid to the expansion tank. When operation of the machine is discontinued the hydraulic fluid contracts as it cools. As the hydraulic fluid contracts, the hydraulic fluid in the expansion tank, is automatically drawn by a siphoning action through the elongated tube within the expansion tank through the connecting tube and back into the reservoir. A float type fluid level sensor is provided and mounted to measure the level of hydraulic fluid within the expansion tank. The float level sensor sends an electronic signal corresponding to the fluid level in the expansion tank to a microcomputer based monitoring unit. The monitoring unit also senses the fluid temperature and interprets these electronic signals and, compensating for volumetric fluctuations due to the changing fluid temperature, and determines if conditions exist which indicate a hydraulic fluid leak exists. If such conditions exist, the monitoring unit produces a warning signal which is communicated to the vehicle operator.
摘要翻译： 诸如用于检测何时适用于草坪护理机的液压流体系统的系统已经发展泄漏并且在允许可观量的液压流体从系统泄漏之前警告机器操作者这种泄漏。 该系统包括用于容纳一定量的液压流体的储存器。 储存器通过连接管或软管连接到靠近储存器安装的膨胀罐。 膨胀箱包括具有向下延伸到膨胀箱中的细长管的配件。 在其附接的草坪护理机的操作期间，该管的端部基本上保持在膨胀罐中的液压流体的水平以下。 当机器运行时，液压流体随温度升高而膨胀，连接管将膨胀流体连通到膨胀罐。 当机器的运行停止时，液压油在冷却时收缩。 当液压流体收缩时，膨胀箱中的液压流体通过虹吸作用自动地通过连接管中的细长管通过连接管并被吸入储存器中。 提供和安装浮子式液位传感器以测量膨胀箱内的液压流体的水平。 浮子液位传感器将对应于膨胀箱中的液位的电子信号发送到基于微机的监控单元。 监测单元还感测流体温度并解释这些电子信号，并补偿由于流体温度变化引起的体积波动，并确定是否存在指示存在液压流体泄漏的条件。 如果存在这种情况，监视单元产生一个通知给车辆操作员的警告信号。
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公开(公告)号：US5890354A
公开(公告)日：1999-04-06
申请号：US787383
申请日：1997-01-22
申请人： Richard D. Bednar
发明人： Richard D. Bednar
CPC分类号： A01D34/005 , A01D34/826 , A01D2101/00 , Y10S56/17
摘要： The invention provides a rotary lawn mower with an improved mulching deck. The rotary lawn mower comprises a plurality of sets of cutting blades. Each of the blade sets includes a lower, leading blade and an upper, trailing blade. The lower blade has a leading cutting edge and an upwardly angled trailing edge. The upper trailing blade extends at an angle relative to the leading blade and has a leading cutting edge for cutting clippings deflected upwardly by the upwardly angled trailing edge of the leading blade. The lawn mower further comprises a mulching deck including a plastic, dent-resistant, rust-proof insert which is positioned in the deck. The insert provides correct air flow for mulching and a sound barrier for reduced noise. The insert defines a plurality of recesses. A blade set is mounted for rotation about an axis of each recess. The insert includes an integral, arcuate baffle extending downwardly adjacent the periphery of one of the recesses impeding air flow from the one recess to an adjacent recess. The insert also includes an integral projection in one of the left and right recesses such that the recess has a decreased height in the area of the projection. The projection prevents downward flow of air that would otherwise result from converging air from two adjacent blade sets. The lawn mower further comprises a front deflector removably mounted on the front portion of the deck side wall to allow venting of air but not discharge of clippings from the front of the deck.
摘要翻译： 本发明提供了具有改进的覆盖甲板的旋转割草机。 旋转割草机包括多组切割刀片。 每个刀片组包括下部前导刀片和上部后刀片。 下刀片具有前刀刃和向上倾斜的后缘。 上部后叶片相对于前刀片以一定角度延伸，并且具有用于切割由前刀片的向上倾斜的后缘向上偏转的夹子的前切割刃。 割草机还包括覆盖甲板，其包括位于甲板中的塑料防凹蚀防锈插入物。 插入物提供正确的覆盖气流，并提供隔音以减少噪音。 插入件限定多个凹部。 安装刀片组件以围绕每个凹部的轴线旋转。 插入件包括一个整体的弧形挡板，其向下延伸，邻近凹部之一的周边，阻止空气从一个凹部流到相邻的凹部。 插入件还包括在左凹槽和右凹槽中的一个中的整体突起，使得凹部在突起的区域中具有降低的高度。 该突起防止空气的向下流动，否则会从两个相邻叶片组的空气会聚。 割草机还包括可拆卸地安装在甲板侧壁的前部上的前导流板，以允许空气排放，但不从甲板的前部排出剪切物。
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公开(公告)号：US5703569A
公开(公告)日：1997-12-30
申请号：US481910
申请日：1995-06-07
CPC分类号： G01F25/0061 , A01D69/03 , G01F23/72 , G01F23/74 , G01M3/3245
摘要： Provided is a self-calibrating system which self-calibrates for operation regardless of the particular reservoir or expansion tank, which further detects when a hydraulic fluid system adapted to a turf care machine has developed a leak and which warns the machine operator of such a leak before an appreciable amount of hydraulic fluid is allowed to leak from the system. The system includes a reservoir for holding a quantity of hydraulic fluid. The reservoir is connected via a connecting tube or hose located at the upper-most portion of the reservoir and connected to an expansion tank mounted substantially adjacent to the reservoir. The expansion tank includes a fitting having an elongated tube extending down into the expansion tank. The end of this tube is maintained substantially below the level of hydraulic fluid in the expansion tank during operation of the turf care machine to which it is attached. As the machine is operated, the hydraulic fluid expands with rising temperatures, and the connecting tube communicates the expanding fluid to the expansion tank. When operation of the machine is discontinued the hydraulic fluid contracts as it cools. As the hydraulic fluid contracts, the hydraulic fluid in the expansion tank is automatically drawn by a siphoning action through the elongated tube within the expansion tank through the connecting tube and back into the reservoir. The self-calibrating leak detection system is adaptable to a variety of self propelled machines having hydraulically actuated devices. In particular, significant savings could be gained by the early detection of hydraulic system leaks on large, earth-moving equipment and the like. Further, the self-calibrating hydraulic fluid leak detection system may be retrofit onto existing hydraulic systems by the addition of an expansion tank to the hydraulic system reservoir.
摘要翻译： 提供了一种自校准系统，无论特定的储存器或膨胀罐如何，其都可以进行自校准，这进一步检测何时适用于草坪护理机的液压流体系统发生泄漏并且向机器操作者发出这种泄漏 之前允许可观量的液压流体从系统泄漏。 该系统包括用于容纳一定量的液压流体的储存器。 储存器经由位于储存器最上部的连接管或软管连接，并连接到基本上邻近贮存器安装的膨胀罐。 膨胀箱包括具有向下延伸到膨胀箱中的细长管的配件。 在其附接的草坪护理机的操作期间，该管的端部基本上保持在膨胀罐中的液压流体的水平以下。 当机器操作时，液压流体随温度升高而膨胀，并且连接管将膨胀流体连通到膨胀罐。 当机器的运行停止时，液压油在冷却时收缩。 当液压流体收缩时，膨胀箱中的液压流体通过虹吸作用自动地通过连接管中的细长管通过连接管而被拉伸到储存器中。 自校准泄漏检测系统适用于具有液压致动装置的各种自走式机器。 特别是，通过在大型地球移动设备等上早期发现液压系统泄漏可以显着节省成本。 此外，自校准液压流体泄漏检测系统可以通过向液压系统储存器添加膨胀箱来改造现有的液压系统。
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公开(公告)号：US5548278A
公开(公告)日：1996-08-20
申请号：US328929
申请日：1994-10-25
IPC分类号： A01D34/44 , A01D69/02 , A01D75/30 , G01F23/72 , G01F23/74 , G01F25/00 , G01M3/32 , G08B21/00
CPC分类号： G01M3/3245 , A01D69/03 , G01F23/72 , G01F23/74 , G01F25/0061
摘要： A hydraulic fluid lead detection system which self-calibrates for operation regardless of the particular reservoir or expansion tank. A reservoir stores a quantity of hydraulic fluid and is connected via a connecting tube or hose located at the upper-most portion of the reservoir and connected to an expansion tank mounted substantially adjacent to the reservoir. An elongated tube extends down into the expansion tank. The end of this tube is maintained substantially below the level of hydraulic fluid in the expansion tank during operation of the turf care machine. During operation, the hydraulic fluid expands with rising temperatures, and the connecting tube communicates the expanding fluid to the expansion tank. A float type fluid level sensor measures the level of hydraulic fluid within the expansion tank and outputs an electronic signal corresponding to the fluid level in the expansion tank to the microcomputer based monitoring unit, which also senses the fluid temperature. The monitoring unit includes memory for storing a table of fluid temperatures versus fluid levels in the expansion tank stored during calibration of the system. During operation, the monitoring unit receives and interprets electronic signals from the float and temperature and compares the table values in memory to the values received from the float and temperature sensors to identify possible fluid leaks in the system.
摘要翻译： 一种液压液体引线检测系统，无论特定储存器或膨胀罐如何，都可自行校准。 储存器存储一定数量的液压流体，并且经由位于储存器最上部的连接管或软管连接，并连接到基本上邻近储存器安装的膨胀罐。 细长的管向下延伸到膨胀罐中。 在草坪护理机的操作期间，该管的端部保持基本上低于膨胀罐中的液压流体的水平。 在运行过程中，液压油随温度升高而膨胀，连接管将膨胀流体与膨胀罐连通。 浮子式液位传感器测量膨胀箱内的液压油液位，并将对应于膨胀箱中的液位的电子信号输出到微型计算机监视单元，该监视单元也检测流体温度。 监测单元包括存储器，用于存储在校准系统期间存储的膨胀箱中的流体温度与流体水平的表。 在运行期间，监控单元接收和解释来自浮子和温度的电子信号，并将存储器中的表值与从浮动和温度传感器接收的值进行比较，以识别系统中可能的流体泄漏。
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公开(公告)号：US08887841B2
公开(公告)日：2014-11-18
申请号：US14232924
申请日：2012-07-20
申请人： Kevin Oswald , Sean Dwyer , Leanne Cushing , Michael Adams , Braxton Reese , Richard D. Bednar , James Flynn , Jerry Sandy , Thomas Limpo , Steve Brinkman , Krzysztof Glomski
发明人： Kevin Oswald , Sean Dwyer , Leanne Cushing , Michael Adams , Braxton Reese , Richard D. Bednar , James Flynn , Jerry Sandy , Thomas Limpo , Steve Brinkman , Krzysztof Glomski
CPC分类号： B62D1/12 , A01D34/001 , A01D34/006 , A01D34/66 , A01D34/82 , A01D34/824 , A01D42/00 , A01D42/04 , A01D2101/00 , B60K17/28 , B62D11/04 , B62D11/06 , B62D51/02 , B62D61/065
摘要： A riding lawn care vehicle may include a frame, an engine, a steering assembly, a support platform and a front mount assembly. The frame may be attachable to a pair of front wheels and a rear wheel assembly of the riding lawn care vehicle. At least a portion of the engine may be mounted to the frame substantially between the front wheels. The steering assembly may include steering levers operably coupled to respective ones of the front wheels of the riding lawn care vehicle via respective hydrostatic drive pumps driven by the engine. The steering assembly may enable steering of the riding lawn care vehicle based on drive speed control of the front wheels responsive to positioning of steering levers of the steering assembly.
摘要翻译： 骑马草坪护理车辆可以包括框架，发动机，转向组件，支撑平台和前安装组件。 框架可以可附接到骑乘草坪护理车辆的一对前轮和后轮组件。 发动机的至少一部分可以基本上在前轮之间安装到框架上。 转向组件可以包括通过由发动机驱动的各自的静液压驱动泵可操作地联接到骑马草坪护理车辆的相应的前轮的转向杆。 响应于转向组件的转向杆的定位，转向组件可以基于前轮的驱动速度控制来实现骑马草坪护理车辆的转向。
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公开(公告)号：US20140174838A1
公开(公告)日：2014-06-26
申请号：US14232924
申请日：2012-07-20
申请人： Kevin Oswald , Sean Dwyer , Leanne Cushing , Michael Adams , Braxton Reese , Richard D. Bednar , James Flynn , Jerry Sandy , Thomas Limpo , Steve Brinkman , Krzysztof Glomski
发明人： Kevin Oswald , Sean Dwyer , Leanne Cushing , Michael Adams , Braxton Reese , Richard D. Bednar , James Flynn , Jerry Sandy , Thomas Limpo , Steve Brinkman , Krzysztof Glomski
CPC分类号： B62D1/12 , A01D34/001 , A01D34/006 , A01D34/66 , A01D34/82 , A01D34/824 , A01D42/00 , A01D42/04 , A01D2101/00 , B60K17/28 , B62D11/04 , B62D11/06 , B62D51/02 , B62D61/065
摘要： A riding lawn care vehicle may include a frame, an engine, a steering assembly, a support platform and a front mount assembly. The frame may be attachable to a pair of front wheels and a rear wheel assembly of the riding lawn care vehicle. At least a portion of the engine may be mounted to the frame substantially between the front wheels. The steering assembly may include steering levers operably coupled to respective ones of the front wheels of the riding lawn care vehicle via respective hydrostatic drive pumps driven by the engine. The steering assembly may enable steering of the riding lawn care vehicle based on drive speed control of the front wheels responsive to positioning of steering levers of the steering assembly.
摘要翻译： 骑马草坪护理车辆可以包括框架，发动机，转向组件，支撑平台和前安装组件。 框架可以可附接到骑乘草坪护理车辆的一对前轮和后轮组件。 发动机的至少一部分可以基本上在前轮之间安装到框架上。 转向组件可以包括通过由发动机驱动的各自的静液压驱动泵可操作地联接到骑马草坪护理车辆的相应的前轮的转向杆。 响应于转向组件的转向杆的定位，转向组件可以基于前轮的驱动速度控制来实现骑马草坪护理车辆的转向。
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公开(公告)号：US06662895B1
公开(公告)日：2003-12-16
申请号：US09594830
申请日：2000-06-14
申请人： Richard D. Bednar
发明人： Richard D. Bednar
IPC分类号： B60K1710
CPC分类号： F16H61/44 , F16H61/42 , F16H61/452 , F16H61/461
摘要： A turf care machine includes a base mounted on a plurality of wheels, a support structure affixed to and extending from the base for supporting a turf machine operator interface, and a hydraulic control system for regulating the speed and direction of the mower. The hydraulic system includes: an engine with a drive shaft; a single hydraulic pump driven by the engine; a first valve set having an inlet connected to the pump outlet; a first hydraulic wheel motor connected to the first valve set; a second valve set connected to the first valve set and to a second hydraulic wheel motor. This drive system has the advantage of using only one pump for driving both drive wheels in a seemingly independent dual path mode of operation, thereby minimizing cost and the number of fluid linkages and parts in such a system.
摘要翻译： 草坪护理机包括安装在多个轮子上的基座，固定在基座上并从底座延伸以支撑草坪机操作者界面的支撑结构，以及用于调节割草机速度和方向的液压控制系统。 液压系统包括：具有驱动轴的发动机; 由发动机驱动的单个液压泵; 第一阀组，其具有连接到泵出口的入口; 连接到第一阀组的第一液压轮马达; 连接到第一阀组和第二液压轮马达的第二阀组。 该驱动系统具有仅使用一个泵来驱动两个驱动轮的优点，这两个驱动轮处于看似独立的双路操作模式中，从而最小化这种系统中的成本和流体联动件和部件的数量。
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公开(公告)号：US06336312B1
公开(公告)日：2002-01-08
申请号：US09643697
申请日：2000-08-22
申请人： Richard D. Bednar , Randal S. Knurr
发明人： Richard D. Bednar , Randal S. Knurr
IPC分类号： A01D3466
摘要： A gang-type rotary lawn mower including a frame supported by wheels for movement over the ground, a power source which is mounted on the frame and which drives at least two of the wheels, an operator's seat mounted on the frame, a steering system enabling the operator to steer the lawn mower, at least two side-by-side front rotary cutting deck assemblies mounted on the frame, the front deck assemblies defining a gap between adjacent front deck assemblies, and at least one rear rotary cutting deck assembly mounted on the frame behind the front deck assemblies, each rear deck assembly being aligned with a respective gap between adjacent front deck assemblies, each of the front and rear deck assemblies including a single-spindle mulching deck defining a downwardly opening space, a single spindle mounted for rotation about a generally vertical axis within the space, and at least one cutting blade mounted on the spindle for rotation therewith.
摘要翻译： 一种组合型旋转割草机，其包括由车轮支撑的框架，用于在地面上移动;电源，其安装在框架上并且驱动至少两个车轮;安装在框架上的操作者座椅;使能 操纵者操纵割草机，安装在框架上的至少两个并排的前旋转切割板组件，前甲板组件限定相邻的前甲板组件之间的间隙，以及至少一个后旋转切割板组件，其安装在 前甲板组件后面的框架，每个后甲板组件与相邻前甲板组件之间的相应间隙对齐，前甲板组件和后甲板组件中的每一个包括限定向下开口空间的单主轴覆盖板， 围绕该空间内的大致垂直的轴线旋转，以及至少一个安装在心轴上的切割刀片，以与其一起旋转。
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