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    • 4. 发明授权
    • Transforming structure with tower shuttle
    • 转塔结构与塔式班车
    • US08689520B2
    • 2014-04-08
    • US14043145
    • 2013-10-01
    • Progressive Products, Inc.
    • Todd N. Allison
    • E04B1/00
    • E04H3/126B60P3/0252E04B1/3442E04H3/24
    • A transportable, transformable structure utilizing a tower shuttle apparatus for converting the structure from a closed, transportable unit to an open, stationary unit. The tower shuttle includes a connection post, including a socket joint, connected to a shuttle cart on casters. The socket joint is capable of receiving a ball connection at the base of a structural tower affixed to the transformable structure. This connection allows a single operator to fully assemble a mobile performance stage or other transportable, transformable structure with ease and with no damage to the stage deck. The tower shuttle allows the towers to be moved into position no matter the required direction.
    • 一种可移动的,可变形的结构,利用塔式梭式装置将结构从封闭的可运输单元转换成开放的静止单元。 塔架梭包括一个连接柱,包括一个连接到脚轮上的梭车的插座接头。 插座接头能够在固定到可变形结构的结构塔的底部接收球连接。 该连接允许单个操作员轻松地完全组装移动性能舞台或其他可运输,可变形的结构,并且不会对舞台甲板造成损坏。 无论所需的方向,塔式班车允许塔移动到位。
    • 5. 发明授权
    • Electrical control for derailleur drive
    • 拨链器驱动的电气控制
    • US4041788A
    • 1977-08-16
    • US600303
    • 1975-07-30
    • Nathan Vivien Nininger, Jr.
    • Nathan Vivien Nininger, Jr.
    • B62M9/122F16H7/22
    • B62M9/122B62M25/08
    • A control system for a chain carrier-idler assembly which positions and controls the drive chain shifting from one drive sprocket to another drive sprocket of the multiple sprocket cluster of a derailleur drive rear bicycle wheel mechanism. A chain carrier-idler assembly has its inboard or outboard motion controlled by the positioning of a "floating" gear from a neutral position to an inboard-drive or outboard-drive position. A movable lever arm (driven by a DC motor) carries the floating gear, and also carries a series of electrical contacts which connect and disconnect with contacts on a baseplate parallel to the lever arm, thus to energize or de-energize the motor. Another movable contact (representative of the position of the carrier assembly and drive chain) moves across a series of spaced fixed contacts representative of the location of each sprocket gear. A power source, rocker switch, and connecting circuitry are provided to upshift or downshift the drive chain. The cooperation of the fixed and movable electrical contacts with the drive motor and placement of the floating gear operate to adjust the duration of movement of the carrier assembly to the point where the new sprocket ratio is effectuated, at which moment the floating gear is driven back to neutral. Thus the gear-change operation is stopped automatically upon shift completion. The operator does not have to look or guess when to shut off the gear changing operation.
    • 一种用于链承载机组件的控制系统,其定位和控制驱动链从一个驱动链轮转向拨链器驱动后自行车车轮机构的多个链轮组的另一驱动链轮。 链承载机组件通过将“浮动”齿轮从中立位置定位到内侧驱动或外侧驱动位置来控制其内侧或外侧运动。 可动杠杆臂(由直流电动机驱动)承载浮动齿轮,并且还携带一系列电触头,其与平行于杠杆臂的基板上的触点连接和断开,从而给电动机通电或断电。 另一个可动接触件(代表承载器组件和传动链的位置)通过代表每个链轮齿轮位置的一系列间隔开的固定接触件移动。 提供电源,摇臂开关和连接电路以升档或降档驱动链。 固定和可移动的电触头与驱动马达的配合以及浮动齿轮的放置操作,以调整载体组件的移动持续时间到实现新链轮比的点,此时浮动齿轮被驱回 到中立。 因此,变速操作在换挡完成时自动停止。 操作人员不必查看或猜测何时关闭变速操作。