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    • 22. 发明授权
    • Fold out ramp
    • 折叠斜坡
    • US08375496B1
    • 2013-02-19
    • US13454858
    • 2012-04-24
    • David JohnsonDonald Morris
    • David JohnsonDonald Morris
    • E01D1/00
    • B60P1/433A61G3/061A61G3/067A61G2220/16
    • A ramp assembly provides a transition surface from a vehicle interior to an alighting surface. The ramp assembly includes a ramp portion that rotates between a stowed position and a deployed position. A panel is coupled to the ramp portion about a first axis. The ramp assembly further includes a linkage that is coupled to the ramp portion. An actuator is coupled to the linkage to move the ramp portion through a deployment motion. The deployment motion includes a first phase during which the linkage rotates the ramp portion about the first axis. During a second phase of the deployment motion, the linkage moves the first axis from a raised position to a lowered position.
    • 斜坡组件提供从车辆内部到下车表面的过渡表面。 斜坡组件包括在收起位置和展开位置之间旋转的斜坡部分。 面板围绕第一轴线连接到斜坡部分。 斜坡组件还包括联接到斜坡部分的联动装置。 致动器联接到联动装置以通过展开运动来移动斜坡部分。 展开运动包括第一阶段,在该阶段中,联动装置围绕第一轴线旋转斜面部分。 在展开运动的第二阶段期间,连杆将第一轴线从升高位置移动到降低位置。
    • 23. 发明授权
    • High current multi-port USB hub
    • 大电流多端口USB集线器
    • US08312199B2
    • 2012-11-13
    • US13017098
    • 2011-01-31
    • David Johnson
    • David Johnson
    • G06F13/36
    • G06F13/4022
    • A high-current Multi-Port USB hub has a microcontroller that selectively switches the hub between low current synchronizing state and high current charging state. During charging state in excess of two Amps of current can be provided to each device connected to the hub. Each USB port circuit includes a power FET to selectively provide current to the USB port according to the state of the hub. Current sensors on each of the USB ports detects an amount of current being drawn by a device connected to the USB port. Each USB port is provided with indicators to indicate the charged state of the device connected to that port. The charge state of the device is also provided to the microcontroller which provides a summary status indication of the set of devices connected to the USB hub.
    • 大电流多端口USB集线器具有一个微控制器,可在低电流同步状态和高电流充电状态之间选择性地切换集线器。 在连接到集线器的每个设备可以提供超过两安培电流的充电状态。 每个USB端口电路包括功率FET,以根据集线器的状态选择性地向USB端口提供电流。 每个USB端口上的电流传感器可检测连接到USB端口的设备正在绘制的电流。 每个USB端口都提供指示灯,指示连接到该端口的设备的充电状态。 装置的充电状态也被提供给微控制器,该微控制器提供连接到USB集线器的一组装置的汇总状态指示。
    • 24. 发明授权
    • Fold out ramp
    • 折叠斜坡
    • US08250693B1
    • 2012-08-28
    • US13350642
    • 2012-01-13
    • David JohnsonDonald Morris
    • David JohnsonDonald Morris
    • B64F1/30
    • B60P1/433
    • A ramp assembly provides a transition surface from a vehicle floor to an alighting surface. The ramp assembly includes a ramp portion that rotates between a stowed position and a deployed position. A panel is rotatably coupled to the ramp portion about a first axis. The ramp assembly further includes an actuator that provides a rotational force to the ramp portion that drives the ramp portion through a deployment motion. The deployment motion includes a first phase during which the rotational force rotates the ramp portion about the first axis. The deployment motion further includes a second phase during which the rotational force moves the first axis in a downward direction.
    • 斜坡组件提供从车辆地板到下车表面的过渡面。 斜坡组件包括在收起位置和展开位置之间旋转的斜坡部分。 面板围绕第一轴线可旋转地联接到斜坡部分。 斜坡组件还包括致动器,其向通过展开运动驱动斜坡部分的斜坡部分提供旋转力。 展开动作包括第一阶段,在该阶段,旋转力围绕第一轴旋转斜面部分。 展开动作还包括第二阶段,在该第二阶段期间,旋转力使第一轴向下移动。
    • 26. 发明授权
    • Fold out ramp
    • 折叠斜坡
    • US08181300B1
    • 2012-05-22
    • US13037122
    • 2011-02-28
    • David JohnsonDonald Morris
    • David JohnsonDonald Morris
    • E01D1/00
    • B60P1/433E04F11/002Y10S414/134
    • A ramp assembly includes a ramp portion coupled for rotational movement between a stowed position and a deployed position. A first panel is rotatably coupled about a first axis to the ramp portion. A second panel is movable between a lowered position and a raised position. A curbside end of the second panel rotatably associated with a roadside end of the first panel. An actuator drives the ramp assembly through a deployment motion having a first phase and a second phase. During the first phase, the actuator rotates the ramp portion about the first axis. During the second phase, the actuator moves the first axis from a raised position to a lowered position.
    • 斜坡组件包括连接用于在收起位置和展开位置之间旋转运动的斜坡部分。 第一面板围绕第一轴线可旋转地联接到斜坡部分。 第二面板可在降低位置和升高位置之间移动。 所述第二面板的路缘缘与所述第一面板的路侧端部可旋转地相关联。 致动器通过具有第一相和第二相的展开运动来驱动斜坡组件。 在第一阶段期间,致动器围绕第一轴旋转斜面部分。 在第二阶段期间,致动器将第一轴线从升高位置移动到降低位置。
    • 29. 发明申请
    • COUNTERBALANCE MECHANISM FOR FOLD OUT RAMP
    • 折旧机会的平衡机制
    • US20110088177A1
    • 2011-04-21
    • US12754467
    • 2010-04-05
    • David JohnsonAlan Cohn
    • David JohnsonAlan Cohn
    • A61G3/06E01D1/00
    • A61G3/061A61G3/067Y10T74/1828
    • A ramp assembly includes a ramp portion configured for reciprocating motion between a stowed position, a deployed position, and a neutral position. The ramp assembly further includes a counterbalance that provides a force to bias the ramp portion toward the stowed position when the ramp portion is between the deployed position and the neutral position, and toward the deployed position when the ramp portion is between the stowed position and the neutral position. A shaft rotates in a first direction when the ramp portion moves toward the stowed position, and in a second direction opposite the first direction when the ramp portion moves toward the deployed position. A crank is fixedly coupled to the shaft. A rod is rotatably coupled at a first end to the crank about a first axis and at a second end to a cylinder. The cylinder is coupled for rotational movement about a second axis.
    • 斜坡组件包括构造成用于在收起位置,展开位置和中立位置之间的往复运动的斜坡部分。 斜坡组件还包括平衡件,当斜坡部分处于展开位置和中立位置之间时,该平衡器提供将偏斜斜坡部分朝向收起位置的力,并且当斜坡部分位于收起位置与收起位置之间时, 中立位置 当斜坡部朝向收起位置移动时,当斜坡部朝向展开位置移动时,轴沿第一方向旋转,并且在与第一方向相反的第二方向上旋转。 曲柄固定地联接到轴上。 杆在第一端处以第一轴线可旋转地联接到曲柄,并且在第二端处可旋转地联接到气缸。 圆筒被联接以围绕第二轴线旋转运动。