Static structures (e.g. – buildings) – Footing or foundation type – Socket
Patent
1994-11-14
1997-05-06
Lisehora, James A.
Static structures (e.g., buildings)
Footing or foundation type
Socket
52297, 248156, 404 9, E01F 9013, E04H 1222
Patent
active
056259883
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a support assembly.
This invention has particular but not exclusive application to a support assembly for releasably supporting a road sign or the like.
BACKGROUND OF THE INVENTION
Signs at the roadside are well known and extensively used to indicate speed limit, directions, potential hazards, the nature of the road ahead as to curves and conditions, and to indicate distances. They are also used to mount roadside reflective indicators.
It is common for such road signs to be supported on a cylindrical galvanised iron pipe which is buried in the ground at the side of the road. For more permanent attachments it is common for the supporting pipe to be embedded in concrete to avoid removal by vandals or accidental displacement in the course of time.
Such arrangements have a number of disadvantages. In particular because both the sign and the mounting arrangements are often damaged or destroyed upon impact by a vehicle, it is common for considerable effort of both labour and resources to be expended by local councils, authorities and the like in repairing damaged road signs. The repair work is also dangerous for the workers due to the proximity of road traffic. The substantially rigid nature of the connection frequently means that the support post for the sign has to be dug out and then repositioned. Alternatively it is necessary that the damaged sign be cut away from the mounting and a replacement sign welded in place.
Solidly mounted signs cause damage to vehicles as well as personal injury. Attempts have been made to overcome these effects by mounting the road signs on a spring so that upon impact the spring mounting enables the road sign to resiliently flex. It has also been proposed to minimise the damage to a vehicle impacting the roadsign by constructing the post supporting the roadsign from light gauge material. However such an arrangement still requires considerable time and effort to replace when destroyed.
SUMMARY OF INVENTION
reliable and efficient in use. supporting a traffic post or the like in the ground, the support assembly including: lower end of a post therein; a rigid collar assembly in the form of a stepped sleeve having a socket-engaging reaction face dimensioned to be accommodated in a close tolerance fit by the upper portion of the mounting socket so as to be removably supported thereon and located against lateral movement thereby, and a post-engaging abutment face dimensioned to accommodate a post to be supported by the support assembly in a close tolerance fit, and support assembly of a substantially transverse load sufficient to bend the post, the rigid collar assembly is not deformed and the close tolerance fits prevent substantial deformation of that portion of the post received within the mounting socket, whereby the post and the collar assembly remain removable from the mounting socket.
The mounting socket can be formed in a concrete pad or the like. However it is preferred that the mounting socket is a hollow pipe. Suitably the mounting socket is a hollow cylindrical pipe. The pipe is preferably a steel pipe but in some embodiments a plastic pipe can be used. The pipe may include exterior protrusions for fixing the pipe against rotation when embedded in the ground or set in a concrete pad.
It is preferred that the stepped sleeve is a stepped cylindrical sleeve. Preferably the stepped cylindrical sleeve has internal cylindrical surfaces constituting the abutment face and the reaction face, the surfaces having diameters slightly greater than the outer diameters of the mounting socket and the post respectively to constitute the close tolerance fits. cylindrical surface constituting the abutment face and an internal cylindrical surface constituting the reaction face, the surfaces having diameters slightly less than and greater than the inner diameter of the mounting socket and the outer diameter of the post respectively to constitute the close tolerance fits.
Suitably the collar assembly includes retention means adapted to releasably se
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Bednarek Michael D.
Lisehora James A.
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