Actuation of semi-trailer support legs
    8.
    发明授权
    Actuation of semi-trailer support legs 失效
    半拖车支撑腿的动作

    公开(公告)号:US5709362A

    公开(公告)日:1998-01-20

    申请号:US440371

    申请日:1995-05-12

    IPC分类号: B60S9/10 A47F5/00

    CPC分类号: B60S9/10

    摘要: The present invention relates to semi-trailer support legs. In order to avoid damage to trailer support legs by failure to raise the legs when the trailer is coupled to a towing unit for movement, the present invention provides a pivotal foot at the end of the support leg and an actuator for controlling pivotal movement of the foot between a raised position providing sufficient clearance for normal operation and a deployed position for supporting the trailer on uncoupling of the towing unit. More particularly raising and lowering of the pivotal foot is controlled automatically on coupling and uncoupling respectively of the towing unit and trailer. A particularly convenient arrangement results where actuation of the foot is responsive to the connection and disconnection of a control line between the towing and trailer units. More particularly still, the control line is the emergency brake line which would be connected as a matter of course. The actuator is supplied from a branch off said emergency brake line.

    摘要翻译: 本发明涉及半拖车支撑腿。 为了避免拖车支撑腿由于在拖车联接到牵引单元以移动时不能抬起腿部而受到损坏,本发明提供了一种在支撑腿端部的枢转脚,以及用于控制支撑腿的枢转运动的致动器 脚之间提供用于正常操作的足够间隙的升高位置和用于在牵引单元脱离时支撑拖车的展开位置。 牵引单元和拖车分别联接和解耦时,自动控制枢转脚的升高和降低。 一种特别方便的布置导致了脚的致动响应牵引和拖车单元之间的控制线的连接和断开。 更特别地,控制线是当然会连接的紧急制动线。 执行机构从分离出来的紧急制动线路供电。