Mechanism for automatically lifting a trailer drawbar support
    1.
    发明授权
    Mechanism for automatically lifting a trailer drawbar support 有权
    自动提升拖车牵引支架的机构

    公开(公告)号:US08840129B2

    公开(公告)日:2014-09-23

    申请号:US13834712

    申请日:2013-03-15

    CPC classification number: B60D1/665 B60D1/155 B60S9/18

    Abstract: A trailer adapted to be coupled to a tow vehicle and including a frame including a draw bar tube defining a longitudinal axis. The trailer includes a drawbar support pivotally coupled to the draw bar tube and rotatable relative to the drawbar tube about an axis parallel to the longitudinal axis. The drawbar support is biased toward a substantially horizontal orientation. A sliding member is receivable in the drawbar tube and is configured for movement along the longitudinal axis in response to movement of the tow vehicle. A latch member is connected to the sliding member. The latch member is configured to move in response to movement of the sliding member from a first position wherein the drawbar support is retained in a substantially vertical orientation to a second position wherein the draw bar support is free to rotate toward the substantially horizontal orientation.

    Abstract translation: 一种适于联接到牵引车辆并包括框架的拖车,所述框架包括限定纵向轴线的牵引杆管。 拖车包括一个牵引杆支撑件,其可枢转地联接到牵引杆管并且可相对于牵引杆管围绕平行于纵向轴线的轴线旋转。 牵引支撑件被朝向基本上水平的方向偏置。 滑动构件可接收在牵引杆管中,并且构造成响应于牵引车辆的移动而沿着纵向轴线运动。 闩锁构件连接到滑动构件。 闩锁构件被配置为响应于滑动构件从第一位置的移动而移动,其中牵引杆支撑件以基本竖直的方向保持到第二位置,其中牵引杆支撑件能够朝向基本上水平的方向自由旋转。

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