Invention Grant
US07849637B2 Fold-up scaffold for semi-trailer shop 有权
半挂车折叠脚手架

  • Patent Title: Fold-up scaffold for semi-trailer shop
  • Patent Title (中): 半挂车折叠脚手架
  • Application No.: US11783423
    Application Date: 2007-04-09
  • Publication No.: US07849637B2
    Publication Date: 2010-12-14
  • Inventor: Erwin Lowe
  • Applicant: Erwin Lowe
  • Agency: Miles & Stockbridge P.C.
  • Agent David R. Schaffer, Esq.
  • Main IPC: E04B7/16
  • IPC: E04B7/16
Fold-up scaffold for semi-trailer shop
Abstract:
Embodiments of the present invention are directed to a fold-up scaffold system that includes multiple spaced vertical beams supported at one end on a floor of a building and scaffold sections extending across the vertical beams. The system also includes means at opposite ends of the scaffold sections for pivotally supporting the scaffold sections to the vertical beams and at least two air cylinders for each scaffold section connected between the scaffold sections and the vertical beams. In addition, each of the at least two air cylinders is adapted to be actuated between a lowered and a raised position, the scaffold sections being pivoted away from the vertical beams when the at least two air cylinders are actuated to the lowered position to provide a substantially horizontal surface and is positioned substantially vertically against the beam when the at least two air cylinders are actuated to the raised position.
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