发明名称 Ramp and ramp support attachable to a trailer hitch receiver
摘要 A ramp system for loading or unloading trucks, vans, or other vehicles which are equipped with a trailer hitch receiver. The ramp system of the present invention includes a ramp support, one or more ladder-like ramps, and a corresponding number of ladder-like bridging pieces. The ramp support includes a L-shaped support frame which attaches to the trailer hitch receiver, and supports a horizontal ramp support bar at about the height of the cargo bed of the vehicle. One end of each ladder-like ramp has rings which fit around the horizontal ramp support bar. The other end of each ramp is rested on the ground, thus providing an inclined ramp for moving loads on to or off of the cargo bed of the vehicle. One end of each bridging piece hooks to the horizontal support bar while the other end rests on the cargo bed of the vehicle.
申请公布号 US5649732(A) 申请公布日期 1997.07.22
申请号 US19960649497 申请日期 1996.05.17
申请人 JORDAN, GARY WAYNE;JORDAN, JR., GARY WAYNE;JORDAN, WILLIAM CARTER 发明人 JORDAN, GARY WAYNE;JORDAN, JR., GARY WAYNE;JORDAN, WILLIAM CARTER
分类号 B60P1/43;(IPC1-7):B62D33/03 主分类号 B60P1/43
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