专利名称：Lift apparatus for a ground vehicle发明人：Daryl W. Van Zee,Scott A. Rempe申请号：US07/706405申请日：19910528公开号：US05203153A公开日：19930420
摘要：A lift apparatus for raising and lowering a ground vehicle. A pair of transverselyopposite frame members are interconnected at their lower end portions by a
transversely extended crank axle. A pair of four- bar parallelogram linkages are locatedon either side of the vehicle and each of which includes a lever plate which supports aground wheel of the vehicle. An upper link pivotally interconnects the lever plate to theassociated frame member. A lower link is pivotally attached at one end to the lever plateand is secured at its other end to the crank axle, thereby forming a crank arm. A hydrauliccylinder is interconnected between each of the lever plates and the associated framemember. Extension and retraction of the cylinders raises and lowers the vehicle.
申请人：VERMEER MANUFACTURING COMPANY
代理人：Kent A. Herink,Brian J. Laurenzo
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