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公开(公告)号：US06341665B1
公开(公告)日：2002-01-29
申请号：US09394616
申请日：1999-09-13
IPC分类号： B66C2316
CPC分类号： B66C23/76 , B66F11/046
摘要： An aerial work platform apparatus includes a shiftable counterweight which shifts in response to movement of the boom in order to maintain optimum balance of the apparatus during movement of the boom and platform. The counterweight shifts towards and away from the front of the apparatus, and also in a vertical direction. Several constructions for shifting the counterweight are disclosed.
摘要翻译： 高空作业平台装置包括可移动配重，其响应于起重臂的移动而移动，以便在起重臂和平台的运动期间保持装置的最佳平衡。 配重朝向和远离设备的前部，并且在垂直方向上移动。 公开了用于移动配重的几个结构。
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公开(公告)号：US4757875A
公开(公告)日：1988-07-19
申请号：US101016
申请日：1987-09-25
CPC分类号： B66F11/046
摘要： A vehicular low profile self propelled aerial work platform assembly having a turntable positioned in a horizontal plane in close proximity to the axles of the vehicle. A parallelogram linkage is provided between a superstructure support frame carried by the turntable and a riser frame assembly to which one end of a telescopic boom assembly is pivotally connected, the aerial work platform being mounted on the outermost end of the telescopic boom assembly. A counterweight is detachably connected to the support frame and is formed with a trough aligned with a similar trough provided in the support frame, the parallelogram linkage includes a pair of tubular arms which extend through the troughs when the work platform is in the lowermost position. When in the lowermost position, the height of the pivotal connection of the telescopic boom assembly to the riser frame assembly is approximately eight feet allowing the assembly to be employed in warehouses and manufacturing plants having low and narrow doorways and aisles. The support frame and parallelogram linkage are symmetrical with respect to the centerline of the machine to thereby distribute stresses equally through the machine. When in the elevated position, the superstructure support frame, parallelogram linkage, and counterweight are positioned within the wheelbase of the vehicle to thereby provide a zero tailswing.
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3.发明授权Multicell articulated riser system for a self propelled aerial work platform 失效用于自行式高空作业平台的多针铰接提升系统
公开(公告)号：US5355970A
公开(公告)日：1994-10-18
申请号：US111933
申请日：1993-08-26
IPC分类号： B66F11/04
CPC分类号： B66F11/046
摘要： An articulated riser system for aerial access equipment wherein a parallelogram linkage is provided by a support frame, a riser frame assembly, and a pair of substantially parallel arms pivotally connected at each end to the support frame and riser frame assembly. The parallel arms are positioned one above the other and the lower arm is provided with a multicell cross-sectional configuration larger than the tubular cross-sectional configuration of the upper arm so that heavier loads can be supported by aerial access equipment than if both parallel arms had the same cross-sectional configuration. A trough is provided in the upper surface of the lower arm so that the upper arm is nested therein when the parallelogram linkage is in its fully lowered and fully raised positions.
摘要翻译： 一种用于空中接入设备的铰接提升机系统，其中平行四边形连杆由支撑框架，立管框架组件和一对基本上平行的臂提供，每个臂在每个端部枢转地连接到支撑框架和立管框架组件。 平行臂一个位于另一个之上，并且下臂设置有比上臂的管状横截面构造更大的多细胞横截面构造，使得比空中接入设备更重的负载可以比如果两个平行臂 具有相同的横截面构造。 在下臂的上表面设置有槽，使得当平行四边形连杆处于其完全降低和完全升高的位置时，上臂嵌套在其中。
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4.发明授权Vehicular self-propelled aerial work platform and telescoping parallelogram boom therefor 失效车载自行式高空作业平台和伸缩平行四边形吊架
公开(公告)号：US5249643A
公开(公告)日：1993-10-05
申请号：US863035
申请日：1992-04-03
IPC分类号： B66F11/04
CPC分类号： B66F11/046
摘要： A vehicular self-propelled aerial work platform wherein a lower telescopic boom assembly is connected to a riser frame assembly having an upper telescopic boom assembly also connected thereto. A work platform is connected to the outer end of the upper telescopic boom assembly. Both the lower telescopic boom assembly and the upper telescopic boom assembly can be elevated and extended to increase the reach of the aerial work platform. The lower telescopic boom assembly comprises tubular telescoping boom sections connected at opposite ends between a support on a turntable and the riser frame assembly, with a telescopic cylinder extending interior of the boom sections and connected at opposite ends between the same members providing a telescoping parallelogram boom mechanism, with hydraulic controls with interlocks for operating the boom in a predetermined sequence.
摘要翻译： 一种车辆自行式高空作业平台，其中下部伸缩臂组件连接到具有也连接到其上的上伸缩臂组件的立管框架组件。 工作平台连接到上伸缩臂组件的外端。 下伸缩臂组件和上伸缩臂组件都可以升高和伸展，以增加高空作业平台的距离。 下部伸缩臂组件包括管状伸缩臂部分，其连接在转台上的支撑件和提升板框架组件之间的相对端处，伸缩缸延伸到悬臂部分的内部，并且在相同构件之间的相对端处连接，提供伸缩平行四边形臂 机构，具有用于以预定顺序操作起重臂的互锁的液压控制器。
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公开(公告)号：US4809472A
公开(公告)日：1989-03-07
申请号：US101017
申请日：1987-09-25
IPC分类号： B66F9/08 , B66C13/12 , B66C23/687 , B66C23/693 , B66C23/697 , B66F9/06 , B66F9/22 , B66F11/04 , E04G1/36 , B66C23/06 , B66C23/88
CPC分类号： B66C13/12 , B66F11/046 , Y10S414/131
摘要： A carrier track assembly for extensible and retractable boom machines wherein the carrier track assembly is positioned within the telescopic boom sections and has one end connected to the extension and retraction fluid cylinder in the base boom section and the opposite end connected to the inner end of the next adjacent extensible and retractable boom section, the carrier track assembly being supported by the extension and retraction fluid cylinder when the boom sections are fully extended. An elevated support member is secured to the fluid cylinder at a position between the inner end of the base boom section and the end connection of the carrier track assembly on the fluid cylinder, the carrier track assembly being reversely bent upon itself and supported by the elevated support member when the boom sections are fully retracted.
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公开(公告)号：US5489114A
公开(公告)日：1996-02-06
申请号：US314763
申请日：1994-09-29
CPC分类号： B60B35/1054 , B60B35/109 , B66F11/046 , B60B2310/305 , B60B2360/1444 , B60Y2200/416 , Y10S180/906
摘要： A tie rod extendable and retractable telescopic axle assembly wherein a pair of axle beams are slidably mounted in a box beam integral with a vehicle chassis. Steering linkage and associated wheel assemblies are mounted on the outer ends of the axle beams, and the inner ends of the axle beam within the box beam are telescopically mounted relative to each other which provides an increased wheel base when the axle beam are moved outwardly of the box beam. A hydraulic cylinder and piston rod assembly is mounted between the box beam and wheel assemblies so that the hydraulic cylinder and rod assembly function not only as an actuator for extending and retracting the axle beams but also as a tie rod for the wheel assemblies.
摘要翻译： 一种拉杆可伸缩伸缩轴组件，其中一对轴梁可滑动地安装在与车辆底盘一体的箱梁中。 转向联动装置和相关联的车轮组件安装在轴梁的外端，并且箱梁内的轴梁的内端相对于彼此可伸缩地安装，当轴梁向外移动时，提供增加的车轮底座 箱梁。 液压缸和活塞杆组件安装在箱梁和轮组件之间，使得液压缸和杆组件不仅用作用于延伸和缩回轴梁的致动器，而且还用作用于车轮组件的拉杆。
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公开(公告)号：US4979588A
公开(公告)日：1990-12-25
申请号：US478401
申请日：1990-02-12
CPC分类号： B66F11/046 , B66C15/06
摘要： An electrical deactivation circuit and a two piece overhead guard assembly including two separately movable bar members which extends upward and over the head of an operator located on the upper work platform of an aerial work platform. The guard bar members are connected to the frame of the upper work platform by a pair of movable support assemblies, the movement of which actuates impact detection induction type proximity switch means to interrupt electrical power applied to the electrical control circuits and stop the engine powering the aerial work platform. Each movable support assembly includes a pair of spring loaded mechanical subassemblies including a pair of clamp members between which is located an elongated coil spring whose stiffness is varied in accordance with the distance separation of the clamps. An inductive type proximity switch is located in the lower end portion of each spring to sense movement of the inner end of a respective guard bar member. Each proximity switch is connected in an electrial circuit having a built in time delay or lock out feature for applying power to the aerial work platform after a predetermined time delay and thereafter interrupting power when either guard bar member strikes or comes into contact with an external object or obstruction.
摘要翻译： 一种电动停用电路和两件式防护罩组件，包括两个分别可移动的杆构件，其在位于高空作业平台的上部工作平台上的操作者的头部上方和上方延伸。 保护杆构件通过一对可移动支撑组件连接到上部工作平台的框架，其移动致动冲击检测感应型接近开关装置，以中断施加到电气控制电路的电力并停止发动机为 高空作业平台。 每个可移动支撑组件包括一对弹簧加载的机械子组件，其包括一对夹紧构件，在其间位于其中刚度根据夹具的距离间隔而变化的细长螺旋弹簧。 电感型接近开关位于每个弹簧的下端部分中，以检测相应的保护杆构件的内端的运动。 每个接近开关连接在具有内置时间延迟或锁定特征的电气电路中，用于在预定时间延迟之后向空中工作平台施加电力，然后当两个保护杆构件撞击或与外部物体接触时中断电力 或阻塞。
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公开(公告)号：US06296455B1
公开(公告)日：2001-10-02
申请号：US09245284
申请日：1999-02-05
IPC分类号： F04B4900
CPC分类号： F04B49/06 , F04B49/03 , F04B49/08 , F04B49/12 , F04B2201/0206 , F04B2201/1202 , F04B2201/1203 , F04B2205/09 , F04B2207/703
摘要： A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control system in the pump controls a position of the displacement control device based on a load on the pump. An over-ride system selectively over-rides the position control system such that the displacement control device assumes a position which reduces displacement of the pistons in the pump.
摘要翻译： 泵启动系统包括具有位移控制装置的可变排量活塞泵。 位移控制装置基于其位置来控制泵中的活塞的位移，并且泵中的位置控制系统基于泵上的负载来控制排量控制装置的位置。 超越系统选择性地超越位置控制系统，使得位移控制装置采取减少泵中活塞的位移的位置。
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9.发明授权Aerial work platform with removably attachable support structure for auxiliary power plant 失效辅助发电厂可拆装式支撑结构高空作业平台
公开(公告)号：US6012544A
公开(公告)日：2000-01-11
申请号：US957798
申请日：1997-10-24
CPC分类号： B66F11/044
摘要： The aerial work platform includes a support frame, wheels rotatably attached to the support frame, and an electric motor rotatably driving at least one of the wheels. A boom having a first end is pivotably mounted to the support frame, and a fluid motor raises and lowers the boom with respect to the support frame. A work platform is supported by a second end of the boom. A battery pack supplies power to the electric motor. A first support structure, for supporting an auxiliary power plant that supplements power supplied by said battery pack, removably attaches to the support frame.
摘要翻译： 高空作业平台包括支撑框架，可旋转地附接到支撑框架的轮子，以及可旋转地驱动至少一个车轮的电动马达。 具有第一端的悬臂可枢转地安装到支撑框架上，并且流体马达相对于支撑框架升高并降低悬臂。 繁荣的第二端支持工作平台。 电池组为电动机供电。 第一支撑结构，用于支撑补充由所述电池组提供的电力的辅助发电厂，可移除地附接到所述支撑框架。
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