发明名称 Telescopic ramp
摘要 An articulating, telescopic ramp for mounting on the top surface of the cargo bed of a truck, trailer or van. A base assembly 20 attaches to the cargo bed. A pivoting frame 40 is pivotally attached to the base assembly. A telescopic frame 60 is positioned on the pivoting frame so that it travels parallel to it. Lifting cylinders 46 attached to the forward end of the pivoting frame and to the forward end of the base assembly lift the forward end of the pivoting frame thus pivoting it relative to the base assembly. A pulling system 90 consisting of a rod less cylinder 93 and a traveling hub 92 is used for loading and unloading cargo on and off the ramp A modified tailgate 122 allows the ramp to reside and telescope forward and aft under it.
申请公布号 US6390761(B1) 申请公布日期 2002.05.21
申请号 US20000563735 申请日期 2000.05.03
申请人 PALMER, JR. JOHN M.;PALMER, III JOHN M.;MARTINEZ EVELYN C. 发明人 PALMER, JR. JOHN M.;PALMER, III JOHN M.;MARTINEZ EVELYN C.
分类号 B60P1/43;B60P3/12;(IPC1-7):B60P1/43 主分类号 B60P1/43
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