| 摘要 |
An expandable ramp system contained in a truck bed having a collection box with slots therein is shown. One or more sliding members are contained within the collection box and are coupled to the slots. Two or more folding structural members with one or more coupling members coupling them are provided and coupled to the one or more sliding members. One or more horizontal structural members are coupled to the at least two folding structural members and oriented in a parallel and horizontal fashion relative to the collection box. One or more support members fold or collapse and are stored within the collection box. The sliding member slides as the two or more folding structural members and the one or more support members extend along with the one or more horizontal structural members to form an expandable ramp.
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