Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1998-08-18
1999-11-16
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182181, 248439, 108132, A47B 300
Patent
active
059840471
ABSTRACT:
An erectable horizontal work surface apparatus having a work surface pivotally connected to two sets of legs and removably connected to brace members for the sets of legs. The brace members are removably connected to the legs. When in the assembled position, the legs are extended at an angle somewhat perpendicular to the work surface and one end of the brace members are placed in brace member reception notches so as to connect the brace members to the legs. The opposite end of the brace members are connected to the work surface by use of a removable dowel member. To place the apparatus in a disassembled position, such as for transporting or storage, the dowel member is removed from its reception notch thus allowing the brace members to fall free. The legs are then pivoted toward the work surface until they are placed in a position that is parallel or horizontal with the work surface. The dowel reception channels in each brace member is then lined up with the dowel reception notch and the dowel is then placed in through the dowel reception notch as well as both dowel reception channels, hence locking the brace members and legs into place. The work surface has two grip channels one so the work surface can be gripped in an upright position, the other so the work surface can be placed in a cross-wise position, either for storing or moving the apparatus as a whole.
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