专利名称：Extendable structures发明人：Peter Truss申请号：US06/389488申请日：19820617公开号：US04480415A公开日：19841106
摘要：An extendable open frame boom structure 10 includes three longerons 11which when the boom is extended lie in spaced parallel relationship to define threeplanes, A, B, C and a series of frame elements 12, arranged at intervals along the lengthof the boom interconnecting the longerons. Between each pair of adjacent frame
elements 12, each longeron comprises a pair of foldable rod members 13, hinged at eachend to a frame element. The hinges are arranged so that on movement to a stowedcondition, each pair of rod members moves within one of the three planes, A, B or C. Aboom system is also disclosed which includes a boom structure 10, housing 18 and a drivemechanism for moving the frame elements 12 one after another between stowed andelongate conditions.
申请人：BRITISH AEROSPACE PUBLIC LIMITED COMPANY
代理机构：Cushman, Darby & Cushman
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