Fences – Wire – Connections
Patent
1996-05-10
1999-07-13
Stodola, Daniel P.
Fences
Wire
Connections
256 47, 256 54, 40607, 527201, B21F 2700
Patent
active
059215305
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to posts, battens and the like which have a number of uses, one example being the construction of permanent or semi-permanent fencing.
BACKGROUND ART
New Zealand Patent No.s 212487, 214830 and 217784 describe elements of a fencing system based on a metal post. The fencing system has been sold in New Zealand and elsewhere under the name STAPLELOK.TM., and has substantial advantages when compared with conventional (timber and metal) post and batten fences.
The STAPLELOK system provides ease of handling, it is fast to erect, versatile and flexible.
In recent times a market has developed for more robust fencing systems for horticultural building and security applications, one of the requirements of this market being that the relative movement of horizontal fence wires in an installation should be minimised, and increased torsional strength is also desirable.
One object of the present invention to provide improvements to metal fencing systems which will increase the versatility and strength of the systems and which will address the above-mentioned needs.
Further objects and advantages of the present invention will become apparent from the ensuing description which is given by way of example.
DISCLOSURE OF INVENTION
According to the present invention there is provided an elongate post having on at least one face an opening to which attachments can be made, said opening providing opposed inwardly turned edges and means to facilitate locking engagement of a fastener member therewith.
The post can be of a substantially rectilinear cross-section.
The inwardly turned edges can be serrated.
The serrated edges can be regular and of a generally saw-tooth configuration with the tips of each coincident.
The inner faces of the inwardly turned edges at the widest point can be provided with a surface which is substantially parallel with the said at least one face.
Posts as aforesaid can be used to support a series of spaced fence wires, the fence wires being secured to the posts by staples driven into the openings of the posts.
The staples can be two-pronged staples each prong being joined by a common limb and each staple engaging with a separate part of the opening of said at least one face.
The locating face of said inner edges can be co-planar with the ridge of the spike of each staple prong.
The post can be secured to a structure to support a wall lining or such like of a building.
According to a further aspect of the present invention there is provided a method of manufacturing a post as aforesaid comprising the steps of feeding an elongate plate to a roll forming apparatus, serrating side edges of the elongate plate and shaping the plate into a box-section.
The side edges can be shaped prior to being serrated.
The serration can be achieved by a pair or pairs of complimentary toothed wheels.
According to yet a further aspect of the present invention there is provided a post driver comprising an elongate post tube, having an open end and a closed end, a pair of spaced cross-bars fixed to the post tube near its open and closed ends, a handle comprising a cap and two hand grips which extend from the cap and which are slidingly supported by a first cross-bar adjacent the closed end of the post tube and fixed to the cross-bar adjacent the open end and resilient compressible members extending between the cap and said first cross-bar, the cap being spaced from the closed end of the post tube a predetermined distance and capable of contact closed end of the post tube when the post tube is impacted on a post.
BRIEF DESCRIPTION OF DRAWINGS
Aspects of the present invention will now be described with reference to the accompanying drawings in which:
FIG. 1 is a diagram of a horizontal wire fence using battens/posts and attachment means, and
FIG. 2 is a side view on the front face of a post in accordance with the present invention, and
FIG. 3 is an enlarged cross-section of the post of FIG. 2, and
FIG. 4 is an enlarged cross-section at the opening of the post of FIG. 2, and
FIGS. 5 is
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Innes Rodney M.
Innes Stuart M.
Joyce Kevin P.
Lev Bruce A.
Manukau Fifty Limited
Stodola Daniel P.
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