发明名称 Portable riser unit with a telescopic brace
摘要 A portable stepped riser unit for supporting persons or items above a floor, a stage or the like is provided. The riser unit is foldable for transport and storage. It includes a generally tubular support frame, a plurality of platforms for forming the steps removably mounted on the support frame, and a lockable telescoping brace assembly associated with the support frame. The brace assembly includes a foot operated lock, whereby a single operator may fold, move and erect the riser unit.
申请公布号 US5381873(A) 申请公布日期 1995.01.17
申请号 US19930129798 申请日期 1993.09.30
申请人 WENGER CORPORATION 发明人 KNIEFEL, JOHN H.;BOEDDEKER, DAVID R.;KANENGIETER, DECEASED, GLENN G.
分类号 E04H3/12;(IPC1-7):E04H3/12 主分类号 E04H3/12
代理机构 代理人
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