1997-11-19
1999-10-12
Kim, Harry C.
Fences
Rail
Connection
256 60, 256 59, E04H 1724
Patent
active
059644524
DESCRIPTION:
BRIEF SUMMARY
The invention relates to fixings and more particularly to fixing devices and methods to facilitate the fixing of a preformed railing unit to a mounting post therefor.
My copending UK Patent application no. 94 148 19.1 discloses a method of producing and a railing unit in which upright railing members are located between longitudinally extending horizontal mounting rails having a rectangular tubular cross-section. The attachment of such railing units to a support post when the railing units are located in one direction or normal thereto can be achieved simply without leaving gaps for the ingress of moisture. However, when it is required to attach such railing units to posts at an angle less than 90.degree., this is difficult to achieve without leaving a gap between the post and the interior of the tubular mounting rails.
It is an object of the present invention to obviate or mitigate the above problem.
According to one aspect of the invention there is provided a combined mounting and blanking spigot for providing fixing between a rectangular cross-section tubular rail and a post, comprising a solid member having a height and width slightly less than that of the interior dimensions of the rail and a length sufficient to blank a gap between the rail and post, one end surface being planar for attachment to the post, one side surface being planar, the other end and other side surfaces being formed to be arcuate or cut away at their adjacent corner and an aperture being formed vertically therethrough at substantially the midpoint of the upper surface area thereof.
Preferably a screw threaded aperture is formed in said one end surface for receiving a fixing stud for attachment to the post.
A generally `V`-shaped notch may be formed in said other side surface adjacent said one end.
Preferably the spigot is formed by drop forging.
According to a further aspect of the invention there is provided a railing unit including at least two longitudinally extending horizontal mounting rails having a rectangular tubular cross-section each attached to a support post utilising a mounting and blanking spigot as defined in any one of the next preceding four paragraphs.
According to yet a further aspect of the invention there is provided a method of mounting a railing unit including at least two longitudinally extending horizontal mounting rails having a rectangular tubular cross-section to a support post therefor which comprises attaching spigots as hereinbefore defined in the fourth to seventh paragraphs to the support post at heights to correspond with the spacing of the support rails, locating such spigots in the ends of the support rails, locating fixing bolts through apertures in the support rails and the aperture in the spigot, adjusting the required direction of the railing unit and tightening the fixing bolts.
Pressure may be applied to the upper and lower surfaces of the support rails to deform them adjacent the spigots to render such fixing tamper-proof.
The aperture in the spigot member may be counter bored and cone-shaped members located on the fixing bolts above and below the spigots to deform the apertures in the support rails to provide a tamper-proof fixing.
The foregoing and further features of the invention may be more readily understood from the following description of preferred embodiments thereof, by way of example, with reference to the accompanying drawing in which:
FIG. 1 is an exploded perspective view of a portion of railing unit, a mounting and blanking spigot and a support post, and
FIGS. 2 and 3 are plan views of two alternative spigots as shown in FIG. 1.
Referring firstly to FIG. 1 of the drawing there is shown a portion of a fencing unit comprising upright railing members 10 located through a longitudinally extending horizontal mounting rail 11. The inner surface and the upper and lower end surfaces of the rails 11 are cut away to form arcuate upper and low surfaces 11a. Alternatively the cut away portion could be provided as a straight line cut at 45.degree. between the inner and end edges of th
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patent: 2976021 (1961-03-01), Stefan
patent: 3258251 (1966-06-01), Culter
patent: 3772837 (1973-11-01), Hunt
patent: 3847489 (1974-11-01), Van Riper
patent: 3879017 (1975-04-01), Maxcy et al.
patent: 4623128 (1986-11-01), Dutch et al.
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