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1. 发明授权

US4087008A Adjustable tow dolly 失效
标题翻译：可调式拖车
公开(公告)号：US4087008A
公开(公告)日：1978-05-02
申请号：US681234
申请日：1976-04-28
申请人： John Cruze Silva, Jr.
发明人： John Cruze Silva, Jr.
IPC分类号： B60P3/12
CPC分类号： B60P3/127
摘要： A tow dolly for hauling motor vehicles is provided having a frame with a tow hitch mounted at the forward portion thereof, a pair of wheels mounted on the frame, a crane pivotably mounted on the frame above the axis of the wheels, a bumper bar mounted on the upper portion of the crane substantially parallel with the axis of the wheels and pivotably upwardly and downwardly on the crane, a pair of derrick arms pivotably mounted at the lower portion of the triangular frame, the free end portion of each derrick arm being connected to the bumper bar by a vehicle support strap, hooking means connected respectively to the bumper bar and the free end portions of said derrick arms, means for pivotably lowering the crane, bumper bar, derrick arms and hooks for engaging the vehicle at one end thereof and winching means for pivotably lifting and holding the crane and thus the bumper bar, derrick arms, hooks and the vehicle and upwardly with respect to said dolly wheels to enable towing of the vehicle.
摘要翻译：提供用于牵引机动车辆的牵引车，其具有在其前部安装的牵引车架的框架，安装在框架上的一对车轮，可枢转地安装在框架上方的车轮轴线上的起重机，安装有保险杆在起重机的上部基本上平行于车轮的轴线并在起重机上可枢转地向上和向下可枢转地安装在起重臂上的一对起重机臂，每个井架臂的自由端部分被连接通过车辆支撑带连接到保险杆上，钩子装置分别连接到保险杆和所述井架臂的自由端部，用于可枢转地降低起重机，保险杆，井架臂和钩的装置，用于在车辆的一端接合车辆以及用于可枢转地提升和保持起重机以及因此保险杠杆，井架臂，钩和车辆并相对于所述台车轮向上枢转的绞车装置，以便能够牵引车辆聪明

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