Static structures (e.g. – buildings) – Frangible section or means
Patent
1995-05-04
1997-01-28
Friedman, Carl D.
Static structures (e.g., buildings)
Frangible section or means
52295, 52707, 403 13, 403299, 403306, E04B 100
Patent
active
055968457
ABSTRACT:
An improved mounting apparatus which is adjustable for providing a safety breakaway capability for the attachment of post assemblies normally adjacent to a road or highway location wherein the vertical post assembly includes mounting holes located in a foundation therebelow. The improved breakaway apparatus includes a plurality of anchors fixedly secured to the foundation and a breakaway coupling interconnecting the anchor to the vertical post assembly. The breakaway coupling includes a weakened section to facilitate breaking thereof responsive to a lateral force exerted adjacent to the lower end of the vertical post assembly. Securement of the breakaway coupling to the anchor is provided by a unique lateral and vertical adjustment design by providing of a lateral clearance space between the lower support member and the collar aperture while at the same time providing an annular clearance space between the coupling support shoulder and the collar lip within the containment bore. Also equal lateral clearance is provided between edges of the lower nut member and the anchor chamber. The vertical adjustment is accomplished by adjusting the vertical relative position between the anchor collar and the anchor body and by adding vertical adjustment spacers of different thicknesses as required in the bottom of the anchor chamber, prior to securement of the breakaway coupling member to the anchor.
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Friedman Carl D.
Kang Timothy B.
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