E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
240/195, 40/60,
E04H 12/18 (2006.01) E01F 9/011 (2006.01) E01F 9/017 (2006.01)
Patent
CA 1181217
ABSTRACT A self-raising post of a plastic material, such as PVC, for use as a roadside marking post, a traffic sign post, a lamp post, or for other comparable uses in road traffic environments, has a channel-shaped bending zone with a substantially arcuate cross section and with the convex side facing the on-coming traffic. The cross-sectional area of the bending zone increases progressively towards the lower end, whereby the flaring-out zone (14) formed upon bending of the post will be larger below than above the line (11) of bending. The greater inherent resiliency of the material below than above the line of bending will cause the post to bend back into an upright position after having been hit by a vehicle. Certain embodiments of the posts are manufactured by diagonally splitting lengths (15) of extrusion-moulded plastic tubing, forming two identically shaped posts from each tube length.
416406
Bjorlund John
Gowling Lafleur Henderson Llp
LandOfFree
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