Breakaway connection system for roadside use

Details Breakaway connection system for roadside use Breakaway connection system for roadside use

1997-05-16

1999-01-05

Kim, Harry C.

Joints and connections

Including frangible component

52 98, 248548, F16D 906

Patent

active

058554432

ABSTRACT:
A breakaway mounting system for mounting a structure to a fixed support surface has a plurality of elongated mounting members extending generally perpendicular to the support surface. An attachment plate is coupled with the structure to be mounted. The attachment plate has a plurality of apertures formed therein, and each of the mounting members extends through one of the apertures. A plurality of shearing plates are provided. Each shearing plate generally surrounds one of the mounting members and is positioned between the support surface and the attachment plate. Each shearing plate 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, and the area of the shearing plate lower surface is substantially smaller than the area of the support surface. A fastener is attached to the mounting member 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 when the structure is impacted by a vehicle with sufficient force.

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