[0001] THIS INVENTION concerns temporary fencing of the kind often found, for example, on
a construction site to prevent unauthorised access thereto. Such fencing comprises
a series of individual fencing panels each consisting of a pair of spaced upright
end struts forming a generally rectangular frame usually with upper and lower horizontal
struts, and a mesh or wire infill welded or otherwise attached to the frame. Each
upright strut has a lower extension beneath the bottom horizontal strut, which can
be located in spaced sockets placed at ground level. Such sockets are usually provided
as a pair of side-by-side vertical recesses within a concrete block or fabricated
metal or plastics foot.
[0002] For stability in assembly, the adjacent upright struts of two aligned panels are
joined usually in their upper regions conventionally by a two-piece detachable coupler
consisting of a pair of clamping plates fixed together around the upright struts by
a bolt passing through the plates between the struts. In practice, the assembly of
such couplers is a time consuming exercise and the individual separate parts often
become lost leaving assembly personnel with insufficient parts to complete the work.
[0003] To overcome these difficulties and in accordance with the present invention there
is provided a temporary fencing panel comprising a frame including spaced upright
struts, the lowermost extremities of the upright struts being intended for location
in spaced sockets placed at ground level; characterised in that the frame includes
fixed means extending outwardly therefrom to engage an upright strut of a next adjacent
panel in a series of temporary fencing panels, and clamping means for removable sattachment
of said fixed means to the next adjacent panel.
[0004] Preferably, the fixed means comprises a pair of plates welded to one upright strut
and extending horizontally therefrom in spaced apart relationship thus to receive
between them an upright strut of the next adjacent panel, and aligned apertures are
provided in the free end regions of said plates to receive the clamping means to captivate
and clamp consecutive panels together.
[0005] An embodiment of the invention will now be described, by way of example only, with
reference to the accompanying drawings, in which:
Fig. 1 is an elevation of a part of a conventional temporary fence;
Fig. 2 is an enlarged elevation of an upper region of a temporary fencing panel made
in accordance with the invention;
Fig. 3 is a plan view thereof; and
Fig. 4 is a similar plan view showing an adjacent pair of upright struts of two fencing
panels assembled in accordance with the invention;
[0006] Referring now to Fig. 1, in a typical temporary fence a pair of galvanised steel
fencing panels 10 are shown with adjacent upright struts 11 located side-by-side within
a concrete support block 12. Each panel is made up as a frame consisting of two upright
struts 11, upper and lower horizontal struts 13 and 14 and a parallel wire infill
15. The fencing panel is assembled by welding.
[0007] In a line of temporary fence, several such panels are typically clamped together,
each adjacent pair by a coupler consisting of a pair of clamping plates 16 and a fixing
bolt 17 passing through and attaching together the plates 16. Once the bolt 17 is
tightened the two adjacent fence panels are rigidly attached together but may be dismantled
once the bolt is removed.
[0008] Conventionally, the plates 16 consist of two separate members the respective ends
of which may be bent partially around the adjacent upright fencing struts thus to
grip and clamp them together upon tightening of the bolt. Each of these couplers therefore
consists of four separate parts i.e. the two plates, the bolt and a nut, and in practice
it is found that these parts become lost and are difficult to assemble rapidly.
[0009] Referring now to Figs. 2, 3 and 4 and in accordance with the invention, at one end
of each fencing panel 10 the upright strut 11 has welded usually to the upper region
thereof a pair of spaced clamping plates 20 extending outwardly and horizontally from
the upright strut. Aligned apertures 21 adjacent the free ends of the two plates 20
are adapted to receive the fastening means which in this example is a fixing bolt
22. Such an arrangement is illustrated in Fig. 3, and in Fig. 4 there can be seen
the further upright strut 11 of the next adjacent fencing panel in a line, being located
between the plates 20 and retained by the bolt 22. By an arrangement as described
the assembly of a temporary fence is facilitated by the omission of separate clamping
plates.
[0010] It is not intended to limit the invention to the above example only, many variations
being possible without departing from the scope of the invention. For example, instead
of providing two spaced plates 20 extending from one end upright strut of each panel,
in an alternative arrangement each upright strut may be provided with a single plate
on one side thereof, another being provided on the opposite side of the next adjacent
panel strut. In this case a fixing bolt may pass through aligned apertures in the
respective plates of the two adjacent panels. In a still further arrangement a single
plate may extend centrally from an upright strut at one end of each panel and be received
within a slot in the upright strut of the next adjacent panel and again adapted to
receive a fixing bolt. For ease of assembly, all bolt receiving apertures may be elongated
in case of slight misalignment of two adjacent panels. The bolts may be replaced by
other locking means to retain the two panels in mutually clamped relationship.
[0011] Since temporary fences are often erected on uneven ground where parallelism or alignment
of two adjacent upright struts cannot be guaranteed, the arrangement illustrated in
Figs. 2, 3, & 4 provides considerable tolerance in the relative positioning of the
adjacent upright struts.
1. A temporary fencing panel comprising a frame including spaced upright struts, the
lowermost extremities of the upright struts being intended for location in spaced
sockets placed at ground level; characterised in that the frame includes fixed means
extending outwardly therefrom to engage an upright strut of a next adjacent panel
in a series of temporary fencing panels, and clamping means for removable attachment
of said fixed means to the next adjacent panel.
2. A temporary fencing panel according to Claim 1, wherein the fixed means comprises
a pair of plates welded to one upright strut and extending horizontally therefrom
in spaced apart relationship thus to receive between them an upright strut of the
next adjacent panel.
3. A temporary fencing panel according to Claim 2, including aligned apertures provided
in the free end regions of said pair of plates to receive the clamping means to captivate
and clamp consecutive panels together.
4. A temporary fencing panel according to any preceding claim, wherein the clamping means
comprises at least one fixing bolt.
5. A temporary fencing panel according to Claim 1, wherein the fixed means comprises
a single plate welded to one upright strut of the panel and extending horizontally
therefrom on one side thereof, another such plate being similarly provided on the
upright strut at the opposite end of said panel and on the opposite side thereof such
that a fixing bolt may pass through aligned apertures in the respective plates of
two adjacent panels in a line of temporary fencing.
6. A temporary fencing panel according to Claim 1, wherein the fixed means comprises
at least one plate extending centrally from an upright strut at one end of each panel
to be received within a corresponding slot in the opposite end upright strut of the
next adjacent panel, said clamping means being adapted to prevent inadvertent removal
of the plate from the slot.
7. A temporary fencing panel according to any preceding claim, wherein the clamping means
includes a fixing bolt adapted to pass through an aperture in the or each fixed means,
the or each aperture being elongated thus to tolerate slight misalignment of two adjacent
panels.