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公开(公告)号：US5744701A
公开(公告)日：1998-04-28
申请号：US375760
申请日：1995-01-20
CPC分类号： G01M3/3245
摘要： A leak detector apparatus 10 is disclosed which measures changes in fluid level in a tube 54 substantially located within a reservoir 29 of hydraulic fluid. The tube 54 has a first end which is open to the atmosphere and a second end which is submerged in the hydraulic fluid. The reservoir 29 is selectively sealed, therefore changes in the volume of the fluid within the reservoir 29 cause the fluid level within the tube 54 to change in accordance with the principles of a manometer. A measuring device is utilized to determine the level of the fluid within the tube 54, wherein the measurement device can include a float 22 having a magnet 23 located thereon interacting with a linear array of Hall effect sensors 24. A controllable venting valve 28 is provided through the reservoir 29 to equalize the pressure within the tank with the external ambient pressure. The opening and closing of the venting valve 28 is controlled by an electronic controller device 30 that uses float position and hydraulic fluid temperature as inputs, among others. Accordingly, the float position can be reset within the tube to extend the range, thereby creating a virtual column.
摘要翻译： 公开了一种泄漏检测器装置10，其测量基本上位于液压流体的储存器29内的管54中的流体水平的变化。 管54具有对大气开放的第一端和浸没在液压流体中的第二端。 储存器29被选择性地密封，因此存储器29内的流体的体积变化导致管54内的流体水平根据压力计的原理而改变。 使用测量装置来确定管54内的流体的水平，其中测量装置可以包括浮子22，浮子22具有位于其上的磁体23，其与霍尔效应传感器24的线性阵列相互作用。提供可控通气阀28 通过储存器29以使外部压力下的罐内的压力相等。 排气阀28的打开和关闭由使用浮动位置和液压流体温度作为输入的电子控制器装置30等进行控制。 因此，可以在管内复位浮动位置以扩大该范围，由此形成虚拟列。
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公开(公告)号：US07293612B1
公开(公告)日：2007-11-13
申请号：US11474651
申请日：2006-06-26
IPC分类号： A01B45/02
CPC分类号： A01B45/023
摘要： A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring swath and the wheels are located in advance of the coring head to keep the wheels from passing over the holes or soil cores left in any preceding coring swathes formed by the aerator. The vertical position of the coring head is adjustable up and down as the ground contour changes to keep hole depth substantially constant. The tine assemblies are reciprocated by a single crankshaft driven by a single pulley, the crankshaft being assembled from multiple crank arms that are splined and bolted together. Sealed bearings connect drive arms that drive the tine assemblies to the crankshaft. The crankshaft can be disassembled to allow the sealed drive arm bearings to be replaced. Integral core deflectors are used on the drive arms. A connecting link extending across each drive arm is used to connect each drive arm to the coring head to decrease the coring head depth.
摘要翻译： 步行充气机包括由多个地面接合轮支撑的框架，该框架承载具有多个并排齿组件的取心头。 车轮限定了基本上等于或小于取芯条的宽度的轴距，并且车轮位于取心头之前，以保持车轮不会通过留在任何先前取芯片中的孔或土芯， 曝气机。 取心头的垂直位置随着地面轮廓的变化而上下可调，以保持孔深度基本恒定。 齿组件由单个由单个滑轮驱动的单个曲轴往复运动，曲轴由多个曲柄臂组装而成，该曲柄臂花键并且螺栓连接在一起。 密封轴承将将齿轮组件驱动到曲轴的驱动臂连接。 可以拆卸曲轴，以便更换密封的驱动臂轴承。 驱动臂上使用了一体的磁芯偏转器。 使用延伸穿过每个驱动臂的连接链路将每个驱动臂连接到取芯头以减小取芯头深度。
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公开(公告)号：US4854112A
公开(公告)日：1989-08-08
申请号：US093349
申请日：1987-09-04
CPC分类号： A01D75/30 , A01D34/661 , A01D75/185
摘要： A rotary mower (10) including a front deck assembly (18) and a pair of wing decks (20). Each wing deck (20) is supported by a lift arm assembly including a main lift arm (26) and a lift arm extension (32). A pivot joint (30) exists between lift arms (26) and (32) so that when deck (20) is raised from its cutting position to its transport position it is also caused to rotate so that mower (10) maintains a relatively low profile even when decks (20) are in their transport position. Mower (10) also preferably includes a pair of breakaway assemblies (48) which allow wing decks (20) to "break away" in the event they strike an immovable object. Finally, a preferred mower (10) includes resilient bushing assemblies (38) between the wing deck lift arm assemblies and the wing deck housings (24) to minimize vibration and noise and provide some floating of the decks (20).
摘要翻译： 一种旋转割草机（10），包括前甲板组件（18）和一对翼板（20）。 每个翼甲板（20）由包括主提升臂（26）和升降臂延伸部（32）的提升臂组件支撑。 枢轴接头（30）存在于提升臂（26）和（32）之间，使得当甲板（20）从其切割位置升高到其运送位置时，其也被转动，使得割草机（10）保持相对较低 即使在甲板（20）处于运输位置时也是如此。 割草机（10）还优选地包括一对分离组件（48），其允许翼甲板（20）在它们撞击不可移动的物体的情况下“脱离”。 最后，优选的割草机（10）包括在（24）之间的弹性衬套组件（38），以最小化振动和噪音并提供甲板（20）的一些浮动。
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公开(公告)号：US4325211A
公开(公告)日：1982-04-20
申请号：US183293
申请日：1980-09-02
申请人： Robert H. Witt , Walter J. Petersen
发明人： Robert H. Witt , Walter J. Petersen
CPC分类号： A01D34/662 , A01D2101/00 , Y10S56/22
摘要： A riding mower (2) includes a cutting unit (6) suspended from a traction unit (4). Cutting unit (6) is suspended from a forwardly extending frame (8) by four suspension units (40-43). Each suspension unit includes an upwardly opening saddle member (44) in which a pin (51) carried on cutting unit (6) is received. At least some of the pins (51) are longitudinally constrained in the saddle members (44) to longitudinally couple cutting unit (6) to frame (8). This allows cutting unit (6) to move upwardly relative to frame (8) at each of the suspension units to allow the cutting unit (6) to tilt or float relative to frame (8).
摘要翻译： 骑马割草机（2）包括从牵引单元（4）悬挂的切割单元（6）。 切割单元（6）通过四个悬挂单元（40-43）从向前延伸的框架（8）悬挂。 每个悬架单元包括向上开口的鞍形构件（44），其中承载有切割单元（6）上的销（51）。 至少一些销（51）在鞍形构件（44）中被纵向约束以将切割单元（6）纵向耦合到框架（8）。 这允许切割单元（6）在每个悬架单元处相对于框架（8）向上移动，以允许切割单元（6）相对于框架（8）倾斜或浮动。
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公开(公告)号：US4246803A
公开(公告)日：1981-01-27
申请号：US820115
申请日：1977-07-29
申请人： David S. Klis , Walter J. Petersen
发明人： David S. Klis , Walter J. Petersen
CPC分类号： G05G25/02 , Y10T74/20534
摘要： A foot pedal is mounted on a control lever operatively connected to a hydrostatic transmission mechanism for a vehicle, for controlling forward and rearward movement of the vehicle. A damping member, operatively associated with the control lever, frictionally engages the pedal to restrain movement of the pedal and control lever, which movement may be caused by heavy vibration of the vehicle during travel over uneven terrain.
摘要翻译： 脚踏板安装在操作连接到用于车辆的静液压传动机构的控制杆上，用于控制车辆的向前和向后运动。 可操作地与控制杆相关联的阻尼构件摩擦地接合踏板以限制踏板和控制杆的运动，该运动可能是由于在不平坦地形行驶期间车辆的重大振动引起的。
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公开(公告)号：US20090173508A1
公开(公告)日：2009-07-09
申请号：US12008091
申请日：2008-01-08
IPC分类号： A01B45/02
CPC分类号： A01B45/023
摘要： A tine holder for holding a plurality of aerator tines has a plurality of substantially vertical, tapered bores. A tapered collar is adapted to be received in each bore with the collar being split so that the collar contracts as the collar is slid into the bore. The upper end of an aerator tine is inserted into each collar before the collar is inserted into the bore such that the contraction of the collar as the collar is thereafter slid into the bore will suffice to tightly grip and hold each tine in the tine holder. A tool is provided for providing enough leverage on the collar to slide the collar over final portions of its movement as the collar slides into the bore during tine installation or to slide the collar over beginning portions of its movement as the collar slides out of the bore during tine removal.
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公开(公告)号：US07472759B2
公开(公告)日：2009-01-06
申请号：US11975277
申请日：2007-10-18
申请人： Walter J. Petersen
发明人： Walter J. Petersen
CPC分类号： A01B45/023
摘要： A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring swath and the wheels are located in advance of the coring head to keep the wheels from passing over the holes or soil cores left in any preceding coring swathes formed by the aerator. The vertical position of the coring head is adjustable up and down as the ground contour changes to keep hole depth substantially constant. The tine assemblies are reciprocated by a single crankshaft driven by a single pulley, the crankshaft being assembled from multiple crank arms that are splined and bolted together. Sealed bearings connect drive arms that drive the tine assemblies to the crankshaft. The crankshaft can be disassembled to allow the sealed drive arm bearings to be replaced. Integral core deflectors are used on the drive arms. A connecting link extending across each drive arm is used to connect each drive arm to the coring head to decrease the coring head depth.
摘要翻译： 步行充气机包括由多个地面接合轮支撑的框架，该框架承载具有多个并排齿组件的取心头。 车轮限定了基本上等于或小于取芯条的宽度的轴距，并且车轮位于取心头之前，以保持车轮不会通过留在任何先前取芯片中的孔或土芯， 曝气机。 取心头的垂直位置随着地面轮廓的变化而上下可调，以保持孔深度基本恒定。 齿组件由单个由单个滑轮驱动的单个曲轴往复运动，曲轴由多个曲柄臂组装而成，该曲柄臂花键并且螺栓连接在一起。 密封轴承将将齿轮组件驱动到曲轴的驱动臂连接。 可以拆卸曲轴，以便更换密封的驱动臂轴承。 驱动臂上使用了一体的磁芯偏转器。 使用延伸穿过每个驱动臂的连接链路将每个驱动臂连接到取芯头以减小取芯头深度。
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公开(公告)号：US07096969B2
公开(公告)日：2006-08-29
申请号：US10706607
申请日：2003-11-12
IPC分类号： A01B45/02
CPC分类号： A01B45/023
摘要： A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring swath and the wheels are located in advance of the coring head to keep the wheels from passing over the holes or soil cores left in any preceding coring swathes formed by the aerator. The vertical position of the coring head is adjustable up and down as the ground contour changes to keep hole depth substantially constant. The tine assemblies are reciprocated by a single crankshaft driven by a single pulley, the crankshaft being assembled from multiple crank arms that are splined and bolted together. Sealed bearings connect drive arms that drive the tine assemblies to the crankshaft. The crankshaft can be disassembled to allow the sealed drive arm bearings to be replaced. Integral core deflectors are used on the drive arms. A connecting link extending across each drive arm is used to connect each drive arm to the coring head to decrease the coring head depth.
摘要翻译： 步行充气机包括由多个地面接合轮支撑的框架，该框架承载具有多个并排齿组件的取心头。 车轮限定了基本上等于或小于取芯条的宽度的轴距，并且车轮位于取心头之前，以保持车轮不会通过留在任何先前取芯片中的孔或土芯， 曝气机。 取心头的垂直位置随着地面轮廓的变化而上下可调，以保持孔深度基本恒定。 齿组件由单个由单个滑轮驱动的单个曲轴往复运动，曲轴由多个曲柄臂组装而成，该曲柄臂花键并且螺栓连接在一起。 密封轴承将将齿轮组件驱动到曲轴的驱动臂连接。 可以拆卸曲轴，以便更换密封的驱动臂轴承。 驱动臂上使用了一体的磁芯偏转器。 使用延伸穿过每个驱动臂的连接链路将每个驱动臂连接到取芯头以减小取芯头深度。
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公开(公告)号：US07669667B2
公开(公告)日：2010-03-02
申请号：US12348286
申请日：2009-01-03
CPC分类号： A01B45/023
摘要： A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring swath and the wheels are located in advance of the coring head to keep the wheels from passing over the holes or soil cores left in any preceding coring swathes formed by the aerator. The vertical position of the coring head is adjustable up and down as the ground contour changes to keep hole depth substantially constant. The tine assemblies are reciprocated by a single crankshaft driven by a single pulley, the crankshaft being assembled from multiple crank arms that are splined and bolted together. Sealed bearings connect drive arms that drive the tine assemblies to the crankshaft. The crankshaft can be disassembled to allow the sealed drive arm bearings to be replaced. Integral core deflectors are used on the drive arms. A connecting link extending across each drive arm is used to connect each drive arm to the coring head to decrease the coring head depth.
摘要翻译： 步行充气机包括由多个地面接合轮支撑的框架，该框架承载具有多个并排齿组件的取心头。 车轮限定了基本上等于或小于取芯条的宽度的轴距，并且车轮位于取心头之前，以保持车轮不会通过留在任何先前取芯片中的孔或土芯， 曝气机。 取心头的垂直位置随着地面轮廓的变化而上下可调，以保持孔深度基本恒定。 齿组件由单个由单个滑轮驱动的单个曲轴往复运动，曲轴由多个曲柄臂组装而成，该曲柄臂花键并且螺栓连接在一起。 密封轴承将将齿轮组件驱动到曲轴的驱动臂连接。 可以拆卸曲轴，以便更换密封的驱动臂轴承。 驱动臂上使用了一体的磁芯偏转器。 使用延伸穿过每个驱动臂的连接链路将每个驱动臂连接到取芯头以减小取芯头深度。
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公开(公告)号：US20090107689A1
公开(公告)日：2009-04-30
申请号：US12348286
申请日：2009-01-03
CPC分类号： A01B45/023
摘要： A walk aerator comprises a frame supported by a plurality of ground engaging wheels, the frame carrying a coring head having a plurality of side-by-side tine assemblies. The wheels define a wheelbase which is substantially equal to or less than the width of a coring swath and the wheels are located in advance of the coring head to keep the wheels from passing over the holes or soil cores left in any preceding coring swathes formed by the aerator. The vertical position of the coring head is adjustable up and down as the ground contour changes to keep hole depth substantially constant. The tine assemblies are reciprocated by a single crankshaft driven by a single pulley, the crankshaft being assembled from multiple crank arms that are splined and bolted together. Sealed bearings connect drive arms that drive the tine assemblies to the crankshaft. The crankshaft can be disassembled to allow the sealed drive arm bearings to be replaced. Integral core deflectors are used on the drive arms. A connecting link extending across each drive arm is used to connect each drive arm to the coring head to decrease the coring head depth.
摘要翻译： 步行充气机包括由多个地面接合轮支撑的框架，该框架承载具有多个并排齿组件的取心头。 车轮限定了基本上等于或小于取芯条的宽度的轴距，并且车轮位于取心头之前，以保持车轮不会通过留在任何先前取芯片中的孔或土芯， 曝气机。 取心头的垂直位置随着地面轮廓的变化而上下可调，以保持孔深度基本恒定。 齿组件由单个由单个滑轮驱动的单个曲轴往复运动，曲轴由多个曲柄臂组装而成，该曲柄臂花键并且螺栓连接在一起。 密封轴承将将齿轮组件驱动到曲轴的驱动臂连接。 可以拆卸曲轴，以便更换密封的驱动臂轴承。 驱动臂上使用了一体的磁芯偏转器。 使用延伸穿过每个驱动臂的连接链路将每个驱动臂连接到取芯头以减小取芯头深度。
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