F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 9/06 (2006.01) E01F 9/018 (2006.01)
Patent
CA 2289664
A breakaway mounting system (10) for mounting a structure (12) to fixed support surface (14) has a plurality of elongated mounting members (34) extending generally perpendicular to the support surface. An attachment plate (24) is coupled with the structure to be mounted. The attachment plate (24) has a plurality of apertures (30) formed therein and each of the mounting members extends through one of the apertures. A plurality of shearing plates (38 and 40) are provided. Each shearing plate (38 and 40) generally surrounds one of the mounting members (34) and is positioned between the support surface and the attachment plate (24). Each shearing plate (38 and 40) has an upper surface and a lower surface. The area of the shearing plate upper surface is substantially smaller than the area of a lower surface of the attachment plate (24) and the area of the shearing plate lower surface is substantially smaller than the area of the support surface (14). A fastener (56) is attached to the mounting member (34) for securing the attachment plate to the support surface. One of the upper surface and the lower surface of each shearing plate forms a shear plane for shearing the associated mounting member (34) when the structure is impacted by a vehicle (61) with sufficient force.
La présente invention concerne un système de montage (10) cassable permettant le montage d'une structure (12) sur une surface de support (14) fixe, dotée d'une pluralité d'éléments (34) de montage allongés, s'étendant généralement perpendiculairement à la surface de support. Une plaque de fixation (24) est couplée à la structure à monter. La plaque de fixation (24) est dotée d'une pluralité d'ouvertures (30) formées dans ladite plaque, et chacun des éléments de montage traverse l'une des ouvertures. Une pluralité de plaques de cisaillement (38, 40) est fournie. Chaque plaque de cisaillement entoure généralement l'un des éléments de montage (34) et est placée entre la surface de support et la plaque de fixation (24). Chaque plaque de cisaillement (38, 40) présente une surface supérieure et une surface inférieure. La superficie de la surface supérieure de la plaque de cisaillement est sensiblement plus petite que celle d'une surface inférieure de la plaque de fixation (24), et la superficie de la surface inférieure de la plaque de cisaillement est sensiblement plus petite que celle de la surface de support. Une attache (56) est fixée à l'élément de montage (34) de façon à fixer la plaque de fixation à la surface de support. La surface supérieure ou la surface inférieure de chaque plaque de cisaillement forme une surface de cisaillement destinée à cisailler l'élément de montage (34) associé lorsque la structure est soumise à un impact provoqué par un véhicule (61) avec une force suffisante.
Faller Ronald K.
Krenk Kenneth L.
Paulsen Eugene W.
Reid John D.
Smart & Biggar
The Board Of Regents Of The University Of Nebraska
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