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    • 28. 发明授权
    • Fold up/fold down tow dolly for use with a load bearing vehicle hitch
    • 折叠/折叠拖车小车用于承载车辆搭接
    • US07584980B2
    • 2009-09-08
    • US11391602
    • 2006-03-28
    • Michael Thompson
    • Michael Thompson
    • B60P3/06B62D53/04
    • B60D1/155B60D1/54B60D1/665B60P3/127
    • A convertible tow dolly supported upon a towing vehicle when in an elevated and non-use position. The dolly includes an elongated tubular support having a first end pivotally secured to a first bracket fixedly engaged to a hitch associated with a towing vehicle. A wheeled and crosswise extending portion exhibits a secondary bracket which is pivotally secured a second end of the elongated tubular support and which is locked into position to prevent up and down articulation relative to the brackets and for supporting a towed vehicle upon the crosswise extending portion in a use position. The elongated support is unlocked at the brackets, such as by removal of first and second clevis pins, to permit folding about the first and second pivotal connections and in a direction towards the towing vehicle, concurrent with elevating the wheeled and crosswise extending portion to a subsequently locked and non-use position.
    • 当处于升高和不使用的位置时,可以在牵引车上支撑的可转换的牵引车。 小车包括细长的管状支撑件,其具有枢转地固定到固定地接合到与牵引车辆相关联的搭接件的第一支架的第一端。 轮式且横向延伸的部分呈现出一个辅助托架,该辅助托架可转动地固定在细长管状支撑件的第二端上并锁定在适当的位置,以防止相对于托架的上下铰接,并用于将牵引的车辆支撑在横向延伸部分上 一个使用位置。 细长的支撑件在支架处被解锁,例如通过移除第一和第二U形夹销,以允许围绕第一和第二枢转连接部以及朝向牵引车辆的方向折叠,同时将轮式和横向延伸部分升高到 随后锁定和不使用的位置。