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    Lifter for vehicles
    31.
    发明授权
    Lifter for vehicles 失效
    机动车辆

    公开(公告)号：US3709330A

    公开(公告)日：1973-01-09

    申请号：US3709330D

    申请日：1970-11-09

    申请人： WELLS V ,  CLARK H

    发明人： WELLS V ,  CLARK H

    IPC分类号： B66F7/08 ,  B66F7/10

    CPC分类号： B66F7/08 ,  B66F7/0641

    摘要： A base supports a lifting frame by means of four parallel arms so the lifting frame may be raised and lowered. A hydraulic jack is connected between the base and the lifting frame to raise the frame. Cross rails on the frame support two lifting pads for movement toward and away from each other. Each pad has wheels rolling on the rails. Guides on the frame and the pads cooperate to keep the pads substantially parallel. Hydraulic jacks on the frame move the pads to and fro. At the end of each pad there is a stop extending above the pad to engage the side of a vehicle and twist the pad horizontally to interlock the guides and stop inward movement of the pad. The hydraulic jacks are combined with a pump and a pressure regulating valve to first cause the pads to move toward each other until stopped, then to lift the lifting frame.

    摘要翻译： 底座通过四个平行臂支撑提升架，因此提升架可以升高和降低。 液压千斤顶连接在基座和提升架之间以抬起框架。 框架上的交叉导轨支撑两个提升垫，用于朝向和远离彼此移动。 每个垫子都有滚轮在轨道上滚动。 框架和衬垫上的引导件协调以保持衬垫基本平行。 框架上的液压千斤顶来回移动垫片。 在每个衬垫的末端，有一个在衬垫上方延伸的止挡件以与车辆的侧面相接合并且水平地扭转衬垫以使引导件互锁并阻止衬垫的向内移动。 液压千斤顶与泵和压力调节阀组合，以首先使焊盘朝向彼此移动直到停止，然后抬起提升架。