Foldable quad-chord truss
AssigneePaul Kristen, Inc.
InventorsLambros Apostolopoulos, Davy E. Passucci, Brian Bortz
Life of this patent
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Abstract
A foldable quad-chord truss which can be connected end-to-end with like trusses. The chords of each pair of chords are rigidly attached, and connector members intermediate the ends are each swivelly attached to each of the chords of each chord pair to effect the folding into a compact shape for transport and storage. The connector members are adapted for attachment to beams or connector members thereof which beams may extend between a parallel pair of the trusses.
Claims12
A quad-chord truss comprising a first pair and a second pair of chords, first webbing rigidly attaching said chords of said first pair, second webbing rigidly attaching said chords of said second pair, at least two connector members spaced longitudinally of said chords, wherein each of said connector members is attached to both of said first pair of chords and to both of said second pair of chords in a manner to effect folding of said chords between a first position wherein said first pair of chords is spread apart from said second pair of chords for use in a platform and a second position wherein said first pair of chords is folded next to said second pair of chords for transport and storage thereof,
- the truss further comprising for each of said connector members a bracket rigidly attached to each of said chords and a fastener swivelly attaching said respective connector member to said respective bracket, wherein said fasteners for each of said pairs of chords are aligned so that both of said first pair of chords have the same swivelling axis and so that both of said second pair of chords have the same swiveling axis,
- the truss further comprising means for locking the truss in said first position, wherein said locking means comprises for at least one of said connector members a protruding member on one of said respective bracket and said at least one connector member and an aperture on the other of said respective bracket and said at least one connector member wherein said aperture is engageable by said protruding member whereby force is required for disengaging said protruding member from said aperture.
A quad-chord truss comprising a first pair and a second pair of chords, first webbing rigidly attaching said chords of said first pair, second webbing rigidly attaching said chords of said second pair, at least two connector members spaced longitudinally of said chords, wherein each of said connector members is attached to both of said first pair of chords and to both of said second pair of chords in a manner to effect folding of said chords between a first position wherein said first pair of chords is spread apart from said second pair of chords for use in a platform and a second position wherein said first pair of chords is folded next to said second pair of chords for transport and storage thereof,
- the truss further comprising a first plate attaching ends of said first pair of chords, a second plate attaching ends of said second pair of chords, at least one slot in one of said first and second plates, a third plate which is hingedly attached to the other of said first and second plates and has a button for engaging said slot for retaining the truss in said first position and for disengaging said slot so that the truss can be folded into said second position.
Dependencies are inferred from the claim text.