| 摘要 |
An extendable ramp system extending a ramp from a storage position on a vehicle tailgate or flatbed is provided. A collection box is shown having a collection box channel with a sliding member slidingly engaged and moving within the collection box channel and coupling an end of the ramp to the collection box, the sliding member being coupled to the end of the ramp closest to the collection box when the ramp is extended. An at least two folding structural members are provided having an at least one coupling member coupling the at least two folding structural members and the at least two folding structural members coupling to the at least one sliding member. An at least one horizontal structural member is coupled to the at least two folding structural members and being oriented parallel and horizontal relative to the collection box. An at least two folding support members are provided along with an extension member coupled to the at least two folding support members. A control element within the at least two folding support members or the extension member is provided, the control element slidingly engaging and coupling the at least two folding support members or the at extension member. An at least two support hinge members couple the at least two folding support members, where the at least two folding support members extend, unfold, and pivot on the at least two support hinge members and straighten and the extension member extends on the at least one control element to extend the ramp.
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