专利内容由知识产权出版社提供
专利名称：TRANSPORT TRAILER LIFTGATE APPARATUS
AND METHOD OF OPERATING THE SAME
发明人：William Gunby申请号：US12717547申请日：20100304
公开号：US20100225137A1公开日：20100909
专利附图：
摘要：A liftgate apparatus may include a plurality of vertical tracks attached to a rearof a trailer, each of the plurality of vertical tracks including a vertical roller chain. Tops ofthe plurality of vertical tracks intersect horizontal hollow structural tubes which include
hydraulic cylinders. The apparatus may also include at least one bar attached to abottom of each vertical roller chain and attached to sets of rolling wheels configured tomove the at least one bar vertically inside the plurality of vertical tracks and a plurality ofhinges attached to a lower end of the at least one bar and attached to a base of aliftgate, wherein the vertical roller chain lifts the at least one bar and the liftgate athinged points. The apparatus may also include a plurality of types of link chains, whereina first type of the link chains supports the liftgate in a closed position and the first type isaffixed to the top of the at least one bar and to the liftgate, and wherein a second typeof the link chains is affixed to the top of the vertical roller chain and to mid sections ofthe liftgate. The apparatus may further include a plurality of sprockets connected via ashaft, wherein the vertical roller chain travels over at least one of plurality of sprocketsand connects the hydraulic cylinders to the least one bar, thereby moving the at leastone bar and the attached liftgate in a synchronized manner.
申请人：William Gunby
地址：Newnan GA US
国籍：US
更多信息请下载全文后查看
