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    • 1. 发明申请
    • Stairclimbing and Descending Hand Truck
    • 升降和降落手推车
    • US20090309319A1
    • 2009-12-17
    • US12281864
    • 2006-03-06
    • Steven KamaraMichael Yang
    • Steven KamaraMichael Yang
    • B62B5/02
    • B62B5/026
    • A towing device comprising a power-assisted spider wheel assembly for ascending and descending stairwells is capable of avoiding unintentional back turning hazards that may result while descending shallower stairwells by applying torque alternatively in the climb-down and climb-up direction to the spider assembly responsive to the angle formed between the spider assembly and lower stair riser. This ensures that the unit will not suddenly fall to a lower tread, which results if the lower-leaning wheel is not first pinned against the lower inside riser and rolls forward instead. The torque exerting means may also lock said spider assembly in a fixed arbitrary orientation during ascent and descent to allow the spider assembly to achieve a safe orientation before stopping mid-stairwell increasing safety.
    • 包括用于上升和下降楼梯间的功率辅助的蜘蛛车轮组件的牵引装置能够避免在向下爬升和向上爬行方向上施加扭矩的情况下,通过施加扭矩来响应于对蜘蛛组件的响应,这可能导致在较浅的楼梯壁下降期间的无意的后部转弯危险 到达蜘蛛组件和下阶梯提升器之间形成的角度。 这确保了该单元不会突然下降到较低的胎面,这将导致如果下倾斜轮不首先被固定在下部内侧提升器中并且向前滚动。 扭矩施加装置还可以在上升和下降期间将所述蜘蛛组件锁定在固定的任意方位,以允许在停止中间楼梯间间隔增加安全性之前使得所述蜘蛛组件实现安全的取向。
    • 4. 发明申请
    • Mechanical Tri-Wheel Retention Assembly for Stair-Climbing Wheeled Vehicle
    • 机动三轮保持组件,用于楼梯轮式车辆
    • US20090133517A1
    • 2009-05-28
    • US12254854
    • 2008-10-21
    • Steven KamaraMichael Yang
    • Steven KamaraMichael Yang
    • F16H35/18
    • B62B5/026B62B5/0033B62B5/0069B62B5/065B62B5/066B62B2202/12
    • While there have been described herein the principles of the invention, it is to be a mechanical tri-wheel retention assembly for a stair-climbing wheeled vehicle having a tri-wheel assembly. The ass has a tri-lobular roller cam mechanism to retain the tri-wheel at a desired angular position for normal two-wheeled operation, and further includes a spring-loaded roller that is configured to pop out of a locking mode in the event of an overload condition, permitting rotation of the tri-wheel assembly to a next predetermined angular position at which point the tri-wheel assembly will be retained, thus preventing damage to the unit and the locking mechanism. The mechanical tri-wheel retention assembly may further include a solenoid actuator configured to automatically disengage the mechanical tri-wheel retention assembly.
    • 虽然本文已经描述了本发明的原理,但是它是用于具有三轮组件的楼梯式轮式车辆的机械三轮保持组件。 屁股具有三叶轮凸轮机构,用于将三轮轮保持在期望的角度位置以进行正常的两轮操作,并且还包括弹簧加载的滚轮,其被配置为在发生锁定的情况下弹出锁定模式 过载状态,允许三轮组件旋转到下一个预定角度位置,此时三轮组件将被保持,从而防止对单元和锁定机构的损坏。 机械三轮保持组件还可以包括螺线管致动器,其构造成自动地脱离机械三轮保持组件。
    • 5. 发明申请
    • STAIR-CLIMBING SURVEILLANCE VEHICLE
    • 平台监视车
    • US20130231814A1
    • 2013-09-05
    • US13870808
    • 2013-04-25
    • Joseph SarokhanSteven Kamara
    • Joseph SarokhanSteven Kamara
    • B25J9/16B25J5/00
    • B62B5/02A61G5/061B25J5/00B25J9/1694B62B1/008B62B5/0026B62B5/0033B62B5/0036B62B5/0069B62B5/026B62B5/065B62B5/066B62B9/06B62D57/022Y10S901/01
    • A robotic, wheeled surveillance vehicle capable of stair-climbing and traversing level surfaces. The vehicle comprises a rigid frame supporting a rotatable axle; an extension on which is mounted at least one surveillance device; a pair of spider assemblies rotatably supported adjacent opposite ends of said axle, each of said pair of spider assemblies supporting a plurality of rotatable wheels coupled to rotate in synchronicity; an inertial sensor supported on said frame in position to measure an angular position of at least one of said pair of spider assemblies relative to said frame; and an electric motor supported on said frame and operatively connected to drive said pair of spider assemblies to rotate. A power source supported on said frame is operatively connected to said electric motor; and a controller supported on said frame and operatively connected to said angular position sensor and said power source causes said electric motor to apply varying rotational torque to said pair of spider assemblies to cause said pair of spider assemblies to maintain a selected angular position of said spider assemblies relative to said frame as a function of input received from said angular position sensor.
    • 一种机器人,轮式监视车,能够爬楼梯和水平面。 车辆包括支撑可旋转轴的刚性框架; 其上安装有至少一个监视装置; 一对可绕所述轴的相对端旋转地支撑的一个,其中每一个所述一对蜘蛛组件支撑多个可旋转的轮子,所述多个可旋转的轮子同步旋转; 支撑在所述框架上的惯性传感器,用于测量所述一对蜘蛛组件中的至少一个相对于所述框架的角位置; 以及支撑在所述框架上并可操作地连接以驱动所述一对蜘蛛组件旋转的电动马达。 支撑在所述框架上的电源可操作地连接到所述电动机; 以及支撑在所述框架上并且可操作地连接到所述角度位置传感器和所述电源的控制器,所述控制器使所述电动机对所述一对蜘蛛组件施加变化的旋转扭矩,以使所述一对蜘蛛组件保持所述蜘蛛的选定的角位置 作为从所述角位置传感器接收的输入的函数的相对于所述框架的组件。
    • 9. 发明申请
    • STAIR CLIMBING WHEELED VEHICLE, AND SYSTEM AND METHOD OF MAKING AND USING SAME
    • 平台车轮,系统及其制造和使用方法
    • US20130192907A1
    • 2013-08-01
    • US13667659
    • 2012-11-02
    • Joseph SarokhamSteven KamaraMichael Yang
    • Joseph SarokhamSteven KamaraMichael Yang
    • F16D7/02B62B5/02
    • F16D7/02B62B5/0069B62B5/026B62B5/065B62B5/066
    • A wheeled vehicle comprising a power-driven spider assembly for ascending and descending stairs. The vehicle includes an angular position sensor providing input to a controller operable to control a servo-motor to effectively lock the position of the spider relative to the frame, regardless of the hand truck's spatial orientation relative to a vertical plane, or any balancing of the hand truck. The angular position sensor provides input to the controller, which is programmed with predefined angular zones of instability, and causes the controller to accelerate rotation of the spiders through those zones when the wheeled vehicle is in the descent mode, to avoid instability of the hand truck. A hand truck may include a removable basket and/or a pivotable platform usable to transport loads.
    • 一种轮式车辆,包括用于上升和下降楼梯的动力驱动的蜘蛛组件。 车辆包括角位置传感器,其向控制器提供输入,该控制器可操作以控制伺服电机,以有效地锁定蜘蛛相对于框架的位置,而不管手推车相对于垂直平面的空间取向,或者任何平衡 手推车。 角位置传感器为控制器提供输入,该控制器使用预定义的不稳定角度区域进行编程,并且当轮式车辆处于下降模式时,使控制器加速蜘蛛通过这些区域的旋转,以避免手动卡车的不稳定 。 手推车可以包括可移动的篮和/或可枢转平台,其可用于运输负载。