Joints and connections – Including frangible component
Patent
1989-11-02
1991-04-02
Kundrat, Andrew V.
Joints and connections
Including frangible component
52 98, 404 10, F16D 900
Patent
active
050043668
ABSTRACT:
A break-away coupling for mounting an elongated member, such as a roadside sign post, includes two opposingly fixed engagement members connected to one another end-to-end. The first engagement member is attached relative to the ground either by a plate or by a plate attached to a stake-like member. The second engagement member is attached to the elongated member. The engagement members have facing flange plates, each flange plate having an opening aligned with an opening in the other plate and a shear bolt projects through the openings to fix the flanges plates together. The shear bolt is either constructed of relatively easy-to-break material or includes a weakened area. When the elongated member is struck, the shear bolt breaks and the engagement members disconnect without damage. The bolt is easily replaced to quickly reassemble the sign post.
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