AU2018223005A1 - Post attachment - Google Patents

Abstract

Disclosed is an attachment (500, 600) for a fence post (510, 610). The attachment comprises a mounting portion (516, 602) that is configured for being secured at an in-use upper end of the post. The attachment also comprises at least one elongate 5 extension arm (518, 520, 604) extending from the mounting portion. The extension arm has a curvature for at least part of a length thereof. The attachment (500, 600) can support an auxiliary fence (750) with respect to each fence post (510, 610). Also disclosed is a fencing system. The system can comprise at least one of the fence posts (510, 610), typically two or more such fence posts; along with the 10 attachment (500, 600). In use, a series of attachments can be arranged in a fence line (700) comprising the two or more fence posts arranged to support an auxiliary fence arrangement (750) extending along the fence line. 10611961_1 (GHMatters) P100657.AU.4

Description

Technical Field

This disclosure relates to an attachment for a fence post. The attachment has particular, but not exclusive, use in agricultural, conservation and biosecurity applications.

Background Art

Posts used in applications such as fencing, demarcation, signage etc. are usually formed from steel, though in some applications (e.g. electric fencing) it is known to mould such posts from a plastic material.

Steel fence posts have been known for many years that are roll-formed to have a Yshaped or T-shaped profile (i.e. in end view). The post may take the form of a picket and in this case may be provided (e.g. cut) with a pointed end to facilitate post driving into the earth.

Such steel fence posts are usually provided with a series of spaced holes or passages in a flange thereof (i.e. in the so-called “stalk”, “stem” or “base web”) to enable strands of fencing wire to be secured to the post, for example, by tying each wire strand to the post with a separate short length of wire tie, or by employing a wire “clip”. However, the wire can also be threaded directly through such holes. These holes are typically punched into an already roll-formed post in a separate step.

0 Posts are generally produced and sold in standard lengths. In some cases, posts that have dimensions beyond these standard lengths may be required. For example, some animal (e.g. rabbit, fox, dog, cat, etc) exclusion fences may require extra height. Similarly, some animal exclusion fences may incorporate an overhang to prevent animals from climbing over the fence. Often, standard post types are not

5 designed to accommodate such an overhang.

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-2It is to be understood that, if any prior art is referred to herein, such reference does not constitute an admission that the prior art forms a part of the common general knowledge in the art, in Australia or any other country.

Summary

Disclosed herein is an attachment for a fence post. The attachment may, for example, enable an auxiliary fencing arrangement (e.g. mesh, grid or net) to be mounted with respect to a fence post (e.g. that is part of a pre-existing fence line). The auxiliary fencing arrangement can be employed in agricultural, conservation, biosecurity, etc applications.

The fence post to which the attachment is secured may, in a first form, be of a type that comprises at least one elongate flange. In a second form the fence post may be of a type that comprises elongate hollow section. The first and second forms of the fence post may be used independently or together in a fence line. For example, the second form of fence post (of hollow section, such as circular hollow pipe) may define a strainer post in a fence line, whereas the first form of fence post (e.g.

comprising one or more flanges, such as a Y- or T- post) may define intermediate posts in a fence line.

In either the first or second form of the fence post, the attachment comprises a mounting portion configured for being secured at an in-use upper end of the post.

0 For example:

- in the first form of the fence post, the mounting portion can be secured to the at least one flange of the post by at least one fastening element (e.g. fastener);

- in the second form of the fence post, the mounting portion can be

5 mounted to locate at an open in-use upper end of the hollow section to be secured thereat.

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-3 In either the first or second form of the fence post, the attachment further comprises at least one elongate extension arm extending from the mounting portion. For example, a single extension arm may extend from the mounting portion, or opposing extension arms may extend from the mounting portion. The auxiliary fencing arrangement may, for example, be mounted with respect to the at least one extension arm (e.g. to the single or to the opposing extension arms).

The at least one extension arm can have a curvature for at least part of a length thereof. The term “curvature” as used herein is to be interpreted broadly. In this regard, the curvature can be defined by a series of straight sections of the at least one extension arm. When combined, the series of straight sections can result in an arm that, in an overall sense, is curved. Such an arrangement will be explained in further detail hereafter.

The curvature of the at least one extension arm may face downwardly (i.e. concave down) when in use on a fence line whereby, when e.g. an auxiliary fencing arrangement is mounted with respect to the at least one extension arm, a canopy- or umbrella- type structure may thereby be provided with respect to the fence line. As later described, this canopy- or umbrella- type structure may act as a very effective deterrent or barrier (e.g. to climbing-type animals, vermin, etc). This can enable the fence to have applications beyond agriculture, such as in conservation, biosecurity,

0 and the like.

When the curvature faces downwardly (i.e. concave down) in use, and when a resultant auxiliary fence is supported by the extension arm(s), an upper surface of the auxiliary fence can provide a generally curved slope. Thus, when debris or the like falls or lands on the fence, it tends to fall or it can be easily dislodged therefrom

5 (e.g. by the wind, by shaking of the fence, etc).

In one embodiment, the curvature of the extension arm may generally extend for a length of the extension arm. In this regard, in use, the curvature of the extension arm may face downwardly for a full length of the extension arm, whereby the curvature extends from a proximal arm end (i.e. where the arm extends laterally

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-4 from the mounting portion) to a distal arm end. This embodiment is to be contrasted with an extension arm that is defined by a series of straight sections which, in combination, generally define a curve.

In one embodiment, the attachment may comprise a single extension arm (e.g. that 5 extends laterally out from one side of the mounting portion).

In another embodiment, the attachment may comprise two (or more) extension arms. When the attachment comprises two extension arms, these may be provided in an opposing arrangement. In this regard, each extension arm may extend laterally out from the mounting portion and in an opposite direction to the other extension arm.

In one embodiment, a distal end of the (or each) extension arm may be adapted so as to provide a securement point thereat. In one example, the arm distal end may comprise a loop formation. This loop formation may, for example, be defined by looping back a distal extent of the arm (i.e. by bending back the distal end of the arm to form a loop thereat). In another example, an aperture may be formed to extend through the distal end of the arm. In either example, the securement point can enable a securement device (e.g. a wire, clip or tie of some type) to be secured to each extension arm. Each securement point can, for example, enable an auxiliary fencing arrangement to be secured with respect to a given fence post type (e.g. to be

0 used to secure mesh, grid or net to the extension arm).

In the first form of the fence post (i.e. when the mounting portion is configured for being mounted to a flange of the post), the mounting portion may be mounted to the flange by one or more fasteners. The fastener(s) may extend through and be retained at suitable apertures in the flange, and may thereby be employed to secure the

5 mounting portion to the flange.

In the first form of the fence post, the use of fastener(s) can allow faster mounting of the attachment to a post and may also avoid the need for skilled work to be

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-5 performed. The use of fastener(s) can also better facilitate in-situ installation of the attachment (i.e. to a post-in-ground).

The fastener(s) can each be separate items (i.e. additional to the mounting portion). For example, each fastener may take the form of a bolt, screw, self-tapping screw, pin, etc. The use of two, typically spaced apart, fasteners can provide for more secure mounting of the attachment.

Alternatively, the fastener(s) can be incorporated or integrated into the mounting portion itself. For example, each fastener may comprise a tab, projection, lug, ear, lobe, etc that is secured to (to become part of) the mounting portion, or that is integrated into the mounting portion during its formation. Each such incorporated or integrated fastener can allow the mounting portion to be secured at the upper end of the post without the use of tools. Such incorporated or integrated fasteners also do not become lost, detached, misplaced, etc.

In the first form of the fence post, the attachment may be formed from a single length of rod or bar (e.g. the (or each) extension arm may be integral with the mounting portion). The rod or bar may be bent to define therein both the mounting portion as well as the (or each) extension arm. For example, the mounting portion may be defined by a U-shaped formation of the rod or bar. The fastener(s) may extend through and be retained at the U-shaped formation.

0 Further, in the first form of the fence post, the (or each) extension arm may be defined by a portion of the rod or bar that extends laterally from a respective stem of the U-shaped formation. The portion of the rod or bar that defines the (or each) extension arm may further be bent to provide a requisite degree of curvature for at least part of or for a full length of the portion.

5 In the first form, when the attachment comprises a single extension arm, that arm may be defined by a portion of the rod or bar that extends laterally from just one of the stems of the U-shaped formation. When the attachment comprises two extension

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-6arms, each may extend laterally from a respective stem of the U-shaped formation (e.g. extending laterally in opposite directions).

In the first form of the fence post, the attachment may be further configured to interact with the post upper end such that, when secured thereto, the attachment can resist movement down and/or rotation with respect to the post. In this regard, and when the attachment comprises a single extension arm, a stem of the U-shaped formation opposite to the single extension arm may be configured to e.g. hook over an upper edge of a flange of the post (e.g. it may hook over a so-called wing flange of the post, as described hereafter).

In the second form of the fence post, the mounting portion may comprise a cap component. This cap component can be configured for being secured within the open upper end of the post. For example, a projecting skirt of the cap component can be inserted into the open upper end of the post. The skirt may be secured within the open upper end such as by an interference-/press-fit; by welding; by one or more grub- or Tec- screw fasteners; by a snap-type fit of a detent formation, etc.

The cap component may also be adapted for receiving the mounting portion of the first form of the attachment (i.e. so that the attachment may be secured with respect to a hollow section). For example, the cap component may comprise a socket into which the mounting portion (e.g. the U-shaped formation) may be inserted for

0 securing therein. Thus, the cap component can be modified to act as an adaptor to enable the first form of the attachment to be secured with respect to a post of hollow section.

In the second form of the fence post, the (or each) extension arm may comprise a length of tube (e.g. a single length of tube) that is secured (or is able to be secured)

5 to the mounting portion (e.g. welded or otherwise fastened, or releasably fastened, with respect to a disc-like plate part the cap component). This length of tube may be bent to provide a requisite degree of curvature for at least part of or for a full length of the tube.

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-7 In the second form, when the attachment comprises a single extension arm, that arm may be defined by a portion of the tube that extends laterally out from one side of the cap component. In this regard, a proximal end of the tube may be secured at (e.g. welded, etc to a central part of) the cap component.

However, in the second form, when the attachment comprises two extension arms, these may be defined by the length of tube extending laterally out from opposite sides of the cap component (e.g. portions of the single length of tube that extend in opposite directions). In this latter case, an intermediate section of the length of tube may be secured at (e.g. welded, etc to a central part of) the cap component.

In the second form, for ease of manufacture, the tube may comprise square or rectangular hollow section.

In the second form, the tube may also be modified to have a projection extending therefrom that is able to be located in the modified cap component (e.g. in the socket) for securing therein. This can mean that the cap component can receive and secure therein an attachment according to either the first or second form as set forth above.

In either the first or second form, the (or each) extension arm may be employed to support an auxiliary fence arrangement (e.g. a length of mesh, grid or net). The auxiliary fence arrangement may further comprise multiple securement devices (e.g.

0 wire, clips, ties, etc). Each securement point can be employed to assist in securing the mesh, grid or net with respect to the (or each) extension arm.

A resultant fence line that comprises multiple fence posts (e.g. of the first and/or second form), each with a respective attachment mounted thereto, may be used to support an auxiliary fence arrangement (e.g. a length of mesh, grid or net) in a

5 canopy-type arrangement. Such a fence line can be particularly effective in acting as a barrier to climbing-type animals.

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-8The mesh, grid or net may be formed of wire such as fence wire, or may comprise a more flexible polymer fibre, etc.

Also disclosed herein is a fencing system that comprises at least one post. For example, the system may comprise multiple fence posts (e.g. of the first and/or second form as set forth above).

The fencing system can further comprise an attachment as set forth above.

The fencing system may additionally comprise an auxiliary fence arrangement as set forth above.

Brief Description of the Drawings

Embodiments will now be described by way of example only, with reference to the accompanying drawings in which

Figure 1 is a perspective view of a first embodiment of the attachment.

Figure 2 is a perspective view of a second embodiment of the attachment.

Figure 3 is a perspective view of a third embodiment of the attachment.

Figures 4A is a perspective view of the mounting portion of a fourth embodiment of the attachment.

Figures 4B is a perspective view of the extension arm of the fourth embodiment of the attachment.

Figures 4C and 4D are detailed views of the locking arrangement of the extension 2 0 arm and mounting portions of the fourth embodiment.

Figures 5A to 5F are various views of two variations of a fifth embodiment of the attachment.

Figures 6A to 6E are various views of two variations of a sixth embodiment of the attachment.

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-9 Figures 7A to 7C are three views of a fence line that employs the fifth and sixth embodiments of the attachment.

Detailed Description

In the following detailed description, reference is made to accompanying drawings 5 which form a part of the detailed description. The illustrative embodiments described in the detailed description, depicted in the drawings and defined in the claims, are not intended to be limiting. Other embodiments may be utilised and other changes may be made without departing from the spirit or scope of the subject matter presented. It will be readily understood that the aspects of the present disclosure, as generally described herein and illustrated in the drawings can be arranged, substituted, combined, separated and designed in a wide variety of different configurations, all of which are contemplated in this disclosure.

Referring firstly to Figure 1, an attachment for a fence post is shown in the form of a post extension 100. The post extension 100 is configured to be mounted to a fence post 110 of the type that comprises a first elongate flange that defines a stalk 112 of the post 110 and at least two other elongate projecting flanges (wings) 114. The post extension comprises a mounting portion 116 configured for mounting to, and shown as mounted to, the stalk 112 of the post 110. The post extension 100 also comprises an elongate extension arm 118 extending from the mounting portion 116.

0 Like the elongate extension arm 118, the mounting portion 116 is generally elongate, and is shaped and sized so as to generally correspond to the stalk 112 (i.e. in the form of a flat bar) of the post 110. Thus, in use, it is able to be flush-mounted against a lateral side of the stalk 112. To enable this flush mounting, the mounting portion 116 comprises laterally extending apertures 122 spaced along its

5 longitudinal (i.e. elongate) axis. The apertures 122 are spaced so as to correspond to (wire/clip receiving) apertures in the post 110.

A plurality of fasteners/fastening elements, in the form of self-tapping screws can be received through the apertures 122 in the mounting portion 116 and through the

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- 10corresponding apertures in the post 110, to secure the mounting portion 116 to the stalk 112 at a plurality of locations. The presence of multiple apertures 122, and multiple screws, enables a more secure mounting of the post extension 100 to the post 110. In this regard, in addition to increasing ‘pull off strength (i.e. ability to withstand uncoupling of the post attachment 100 from the post 110), this arrangement also restricts the ability of the post attachment 100 to rotate (e.g. about a single fastening point), thereby better resisting bending moments and stresses applied to the post attachment 100 in use (e.g. by livestock, vermin, etc).

In a variation, the mounting portion 116 can be modified whereby the fasteners are 10 incorporated or integrated into the portion 116 itself. Hence, separate fasteners are not required. For example, each fastener may comprise a projection such as a tab, lug, ear or lobe that is either secured (e.g. welded) to the portion 116, or that is formed so as to be integrated into the portion 116 during its manufacture.

Each such projection can be shaped or sized such that it can be located in adjacency 15 of the apertures 122 of the stalk 112, and then be retained therein. For example, each projection may take the form of a tab, lug, ear or lobe that can be interferingly, push-fit, manoeuvred, or forcibly displaced through the apertures 122, to allow the mounting portion 116 to be secured at the post 100 e.g. without the use of tools. Each projection can e.g. have a hook-type formation to latch onto the post at its

0 respective aperture.

The restriction of rotation of the post attachment 100 about the post 110 is further provided by additional tabs 124, which extend from a longitudinal edge of the mounting portion 116 and are adapted to engage a distal edge of the stalk 112.

More specifically, the tabs 124 extend generally perpendicularly from the mounting

5 portion 116 so as to wrap around the distal edge of the stalk 112. In use, the tabs 124 resist bending moments and stresses that are induced by the extension arm 118. For example, stresses can result from the cantilever of the extension arm 118 from the mounting portion 116 and/or can be caused by external factors (e.g. such as

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- 11 wind, animals, vermin, vehicles, etc. putting pressure or load on, or impacting, the extension arm 118).

The elongate extension arm 118 is integral with the mounting portion 116, and is in the form of a generally flat bar that forms an obtuse angle with the mounting portion 116 (i.e. so as to extend at an angle from an end of the mounting portion 116). The length of the extension arm may be approximately 30 mm to 60 mm. A rib 126 extends along an upper longitudinal edge of the extension arm 118 (although in other embodiments, the rib 126 may instead extend along the bottom edge or between the edges). This rib 126 stiffens the extension arm 118 so as to reduce flexing in the extension arm 118, and again helps the arm to resist bending moments and stresses.

The internal angle at the integral connection between the mounting portion 116 and the extension arm 118 comprises a fillet 120. This increases the width of the connection and reduces stress concentrations at the joint so as to provide further resistance to bending moments/stresses translated from the extension arm 118 to the mounting portion 116. The opposing (‘open’) side of the connection comprises a projecting shoulder 128 that rests on the top of the post 110 to optimise its location on the post when mounted thereto.

In the illustrated embodiment, the mounting portion 116 is located at the upper end

0 of the post 110 and is mounted such that the extension arm 118 extends upwardly from the top of the post 110. In other embodiments, the mounting portion 116 can be mounted to the post 110 at other locations (e.g. partway along the post 110, intermediate its ends) and at other orientations (e.g. such that the extension arm 118 extends downwardly). In embodiments configured for mounting partway along the

5 post 110 the shoulder 128 may be omitted (i.e. to avoid interference of the shoulder with the elongate projecting flanges 114).

The extension arm 118 is configured to support one or more fence members, such as one or more strands of fence wire, or one or more wire securement devices (e.g.

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- 12clips) for securing strands of fence wire to the extension arm 118. This may allow the extension of the protection provided by e.g. a fence that is to be arranged at the post 110. For this purpose, the extension arm 118 comprises apertures 130 spaced along its length. In use, the apertures 130 can retain strands of fence wire at the extension arm 118. Alternatively, strands of fence wire may be retained at the extension arm 118 by way of wire securement devices (e.g. post clips that are mounted between the extension arm 118 and the fence wire). In this way, the post extension 100 can extend the protection provided by a fence mounted to the fence post 110.

The extended protection provided by the post extension 100 is not limited to an increase in height of the fence. Because the extension arm 118 extends from the mounting portion 116 at an angle, it may be difficult (or impossible) for animals, vermin, etc to climb or jump over a fence when mounted thereto. The post extension 100 may increase protection in other ways. For example, the post extension 100 may be mounted at the lower end of the post 110 and may be oriented such that the extension arm 118 extends down towards the ground. With fencing attached, this would provide a further barrier at the lower end of the fence (to strengthen the protection at the lower end of the fence). Alternatively or additionally, the post extension 100 (or a portion of the post extension 100) may be

0 formed of or coated with an electrically insulating material (e.g. an insulating polymer material). In this respect, electric fence wire may be supported by the post extension 100.

The post extension 100 may be formed by way of laser cutting and pressing (e.g. to form the tabs 124 and stiffening rib 126). Alternatively, the post extension 100 may

5 be formed by a stamping process and the apertures 122, 130 may be punched out of the stamped piece.

The extended protection provided by the post extension 100 is not limited to an increase in height of the fence. Because the extension arm 118 extends from the mounting portion 116 at an angle, it may be difficult (or impossible) for animals,

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- 13 vermin, etc to climb or jump over a fence when mounted thereto. The post extension 100 may increase protection in other ways. For example, the post extension 100 may be mounted at the lower end of the post 110 and may be oriented such that the extension arm 118 extends down towards the ground. With fencing attached, this would provide a further barrier at the lower end of the fence (to strengthen the protection at the lower end of the fence). Alternatively or additionally, the post extension 100 (or a portion of the post extension 100) may be formed of or coated with an electrically insulating material (e.g. an insulating polymer material). In this respect, electric fence wire may be supported by the post extension 100.

The post extension 200 shown in Figure 2 is a variation of the post extension 100 shown in Figure 1 and described above. Most of the features of these embodiments are the same and therefore similar reference numerals have been used. The post extension 200 differs in that extension arm 218 is perpendicular to the mounting portion 216 (rather than forming an obtuse angle with the mounting portion 216). Due to the more extreme overhang this arrangement provides, it may make it even more difficult for animals, vermin, etc to climb or jump over the fence when attached thereto.

As set forth above with respect to Figure 1, the post extension 200 may be mounted

0 to the post 210 at a location other than the top of the post 210. For example, the post extension 200 may be located at the bottom of the post 210, and may be oriented such that the extension arm 218 extends from a bottom end of the mounting portion 216. In this way, the extension arm 218 may rest on the ground, or may be buried below ground level. When mounted to the post 210 in this way,

5 the extension arm 218 may support a fencing structure that prevents an animal from digging underneath the fence. In a variation, it can also act as a step.

A further variation is shown in Figure 3. Again, similar reference numerals have been used, because this variation differs only in that the extension arm 318 extends from the mounting portion 316 in a direction that is generally co-axial with the

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- 14mounting portion 316. In the illustrated embodiment, the post extension 300 is again mounted at the upper end of the post 310. Hence, the extension arm 318 extends generally vertically about the upper end of the post 310, so as to increase the effective height of the post.

Figures 4A, B, C and D show a fourth embodiment of the post extension 400. This embodiment differs from the previously described embodiments in that the angle at which the extension arm 418 projects from the mounting portion 416 is adjustable. To allow this adjustment, the mounting portion 416 and extension arm 418 are separate components that may be held in place relative to one another by a locking mechanism.

The upper end of the mounting portion 416, which is shown in Figure 4A, comprises one part of this locking mechanism. Three circumferentially spaced teeth 432 extend laterally from an end of the mounting portion 416. These teeth 432 extend in the same direction as the tab 424 such that, when the mounting portion

416 is mounted to a post, the teeth 432 extend over the top of the post. The teeth

432 may be formed as laser cut tabs that are then folded so as to be perpendicular to the main plane of the mounting portion 416.

The lower end of the extension arm 418 comprises a plurality of circumferentially spaced teeth receiving apertures 434. The spacing and shape of these apertures 434

0 is such that, in use, they are able to receive the teeth 432. Thus the extension arm 418 can be locked relative to the mounting portion 416 at a plurality of predetermined angles (i.e. determined by the number and spacing of the apertures 434 and teeth 432).

To further support this adjustability, the extension arm 418 and mounting portion

5 418 each comprise holes 436 positioned centrally relative to the teeth 432 and teeth receiving apertures 434. When aligned, the holes 436 may receive a pivot pin therethrough to facilitate rotation of the extension arm 418 relative to the mounting portion 416. Although not shown, the pivot pin may comprise a coupling

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- 15 mechanism (e.g. a bolt and nut arrangement, R-clip, etc.) that, when engaged, prevents the teeth 432 from disengaging the apertures 434 (i.e. by restricting lateral movement of the extension arm 418 relative to the mounting portion 416). A biasing mechanism, such as a spring, may be used to bias the parts together or away from one another. This may simplify the process of adjusting the angle of the extension arm 418.

Referring now to Figures 5A to 5F, an attachment for a fence post is shown in the form of a post bracket 500. In the embodiment of Figure 5, the post bracket 500 is able to be secured (i.e. mounted) to an in-use upper end of a fence post 510. The post bracket 500 can enable an auxiliary fencing arrangement (e.g. a length of mesh, grid or net) to be mounted with respect to e.g. a pre-existing fence line. The auxiliary fencing arrangement can provide a canopy- or umbrella- type structure to the fence line, and will be described hereafter and in further detail with reference to Figure 7. Electric fence wire may also be supported by the post bracket 500.

The fence post 510 is of the type that comprises a first elongate flange that defines a stalk 512 of the post 510 and at least two other elongate projecting flanges (wings) 514 (see e.g. Figs. 5D & 5E). Such fence posts can have a Y- or T-profile and may form intermediate posts in a fence line, as described hereafter with reference to Figure 7. The post 510 shown in Figure 5 has a Y-profile. One such suitable fence

0 post is that marketed by the applicant under the trade mark JIO MAXY™.

The post bracket 500 is formed from a length of rod or bar (e.g. from 6mm high tension wire rod). The post bracket 500 can be formed to have either a flexible or stiff/rigid characteristic (e.g. to be bendable or be stiff/rigid under the load of e.g. an auxiliary fence and a climbing-type animal, vermin, etc).

5 The post bracket 500 is bent along its length to define a mounting portion in the form of a U-shaped portion 516. The U-shaped portion 516 is configured for being secured at the in-use upper end of the stalk 512 of the post 510, as shown in Figures 5B to 5F.

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- 16Two variations of the post bracket 500 are shown. In Figures 5A, 5B, and 5D to 5F, the post bracket 500 comprises two elongate and opposing extension arms in the form of curved arms 518 and 520 that are each integral with the U-shaped portion 516 and extend out from either side thereof. In Figure 5C, the post bracket 500’ comprises a single elongate extension arm in the form of curved arm 518’ that is integral with the U-shaped portion 516 and extends out from one side only. In either variation, each extension arm is configured to have secured thereto and support thereat part of an auxiliary fence (e.g. mesh, grid or net). Each variation of the post bracket will be described in greater detail hereafter and with particular reference to

Figure 7.

The curved arms 518, 518’ and 520 each extend laterally from a respective upper end of a respective stem 522, 524 of the U-shaped portion 516. Whilst the curvature can extend for just part of a length of each arm 518, 518’, 520 (e.g. at or towards a distal and/or a proximal end thereof), typically the curvature extends for a full length of each arm. In use (i.e. when the post bracket 500 is mounted to the fence post 510) the curvatures of each arm 518, 518’, 520 face downwards, as described hereafter with reference to Figure 7.

The U-shaped portion 516 is sized and shaped so as to locate and sit flat against the stalk 512 of the post 510. Thus, in use, it is able to be securely mounted against a

0 lateral side of the stalk 512. To enable this mounting, and as best shown in Figures 5B & 5C, the stems 522, 524 of the U-shaped portion 516 are located on either side of two of the uppermost apertures 526 and 527 of the stalk 512 (i.e. these are preexisting wire/clip receiving apertures already defined in the stalk 512 of the post 510).

5 As best shown in Figures 5D & 5E, two fasteners, in the form of two nut and bolttype fasteners 530 can extend between the stems 522, 524 of the U-shaped portion 516, and through the apertures 526 and 527 of the stalk 512, to secure the post bracket 500 thereto. As best shown in Figure 5E, each nut and bolt-type fastener

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- 17530 employs larger 531 and smaller 532 washers, on opposite sides of the stalk 512, to securely retain the rod material of the U-shaped portion 516 against the stalk.

The use or two fasteners also provides for a more secure mounting of the post bracket 500 to the post 510. In this regard, in addition to increasing ‘pull off strength, the two fasteners also prevent rotation of the post bracket 500 about a single fastening point, thereby better resisting bending moments and stresses applied to the post bracket 500 in use (e.g. by the auxiliary fence and climbing animals, vermin, etc).

In a variation, the U-shaped portion 516 can be modified whereby the fasteners are 10 incorporated or integrated into the U-shaped portion 516 itself (again, such that separate fasteners are not required). For example, each fastener may comprise a projection from the U-shaped portion such as a lug, ear, lobe, etc that is either secured (e.g. welded) to the U-shaped portion 516, or that is formed so as to be integrated into the U-shaped portion 516 during its manufacture.

Each such projection can be shaped or sized such that it can be located in adjacency of the apertures 526 and 527 of the stalk 512. For example, each projection in the form of a lug, ear or lobe can be interferingly, push-fit, manoeuvred, or forcibly displaced through the apertures 526, 527 to allow the portion 516 to be secured at the upper end of the post e.g. without the use of tools. Each projection can e.g. have

0 a hook-type formation to latch onto the post at its respective aperture.

As best shown in Figures 5B to 5E, the post bracket 500 is also configured to interact with the upper end of the fence post 510 such that, when secured thereto, the bracket is able to resist movement down and/or rotation with respect to the post.

In this regard, and as best shown in Figure 5B, when the bracket 500 that has the

5 opposing curved arms 518 and 520 is mounted to the stalk 512, the arm 520 is able to hook over an upper edge of one of the wings 514 of the post 510, as shown.

Conversely, and as best shown in Figure 5C, the bracket 500’ that has a single extension arm 518’, further comprises a hook-type formation 535. When the bracket

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- 18 500’ is mounted to the stalk 512, the hook-type formation 535 is able to hook over an upper edge of one of the wings 514 of the post 510, as shown.

In either case, this hooking over the upper edge of one of the wings 514 enables the bracket to resist movement down, as well as rotation with respect to, the post 500,

500’.

A distal end of each of the curved arms 518, 518’ and 520 is adapted so as to provide a securement point thereat. More specifically, a loop formation 540 is defined at the distal end by looping/bending back a distal extent of the arm during a forming operation of post bracket 500. Each loop formation 540 defines an aperture

542 and through which a securement device, such as a length or wire, C-clip or wire tie can be inserted. The securement device can be used for securing and supporting part of the auxiliary fence (e.g. mesh, grid or net) with respect to each arm distal end 540, as described hereafter with reference to Figure 7.

The post bracket 500, 500’ may be formed by way of a hot or cold forming operation (e.g. bending) of a specific length of rod or bar. The post bracket 500,

500’ may also be subjected to further treatment stages to reduce stresses therein or to increase stiffness, etc (e.g. thermal treatment such as annealing, or quenching, etc).

Referring now to Figures 6A to 6E, an attachment for a fence post is shown in the

0 form of a post bracket 600. The post bracket 600 is able to be secured (i.e. mounted) to an in-use upper end of a fence post 610. The fence post 610 is of elongate hollow section, and typically takes the form of a circular hollow pipe (e.g. a galvanised steel pipe having a nominal size (NB) of 80mm and 4mm wall thickness). Such a fence post can be employed as a strainer post or an end post in a fence line, as

5 described hereafter with reference to Figure 7.

In a similar manner to the post bracket 500, the post bracket 600 can enable an auxiliary fence (e.g. a length of mesh, grid or net) to be mounted with respect to a fence line to provide a canopy- or umbrella- type structure thereto, as described in

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- 19further detail with reference to Figure 7. Electric fence wire may also be supported by the post bracket 600.

The post bracket 600 is formed from two components:

- a mounting portion in the form of a post end cap 602;

- an elongate extension arm in the form of a curved arm 604.

The curved arm 604 is secured to the end cap 602, such as by welding (e.g. by employing suitably located spot welds 603 as best shown in Figure 6D). The curved arm 604, 604’ can alternatively be releasably secured to the end cap, for example, as described hereafter with reference to Figure 8.

The curved arm 604 can be formed to have either a flexible or stiff/rigid characteristic (e.g. to be bendable or be stiff/rigid under the load of e.g. the auxiliary fence and a climbing-type animal, vermin, etc).

In the embodiment of Figure 6, the curved arm 604 is formed from square hollow section (e.g. 40x40mm galvanised steel SHS), and so has a relatively stiff/rigid characteristic. The curved arm 604 also comprises apertures (i.e. securing holes)

606 formed through the side walls adjacent to opposite distal ends thereof. Whilst the curvature of the arm can extend for just part of a length of the arm (e.g. at or towards a distal and/or a proximal end thereof), typically the curvature extends for a full length of the arm. In use (i.e. when the post bracket 600 is mounted to the fence

0 post 610) the curvature of the arm 604 faces downwards, as described hereafter with reference to Figure 7.

The end cap 602 is configured for being secured at the in-use open upper end of the fence post 610, as best shown in Figures 6B to 6D. In this regard, the end cap 602 comprises a cylindrical skirt 605 that extends downwardly in use from a cap end in

5 the form of a circular disc-like plate 608. The skirt 605 is sized to locate snugly or even interferingly in the open upper end of the fence post 610. In this regard, the skirt 605 can be located in the open upper end of the fence post 610 by a push-,

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-20friction-, or interference- fit; or it can be secured therein by welding and/or by one or more grub or Tec screws, bolts, etc inserted through a suitable formed passage in a wall 611 of the post 610. Alternatively, the skirt 605 can comprise one or more detent formations thereon (e.g. ball-detents) that each engage with a suitable aperture at the upper end of the fence post 610 by a snap-type or interference-type fit.

Two variations of the post bracket 600 are shown. In Figures 6 A, 6B, and 6D and 6E, the post bracket 600 comprises a curved extension arm 604 that projects to an equal extent from opposite sides of the end cap 602. In Figure 6C, the post bracket

600’ comprises a curved extension arm 604’ that projects from just one side of the end cap 602.

In either variation, each arm 604, 604’ is configured to have secured thereto, to support thereat, part of an auxiliary fence (e.g. mesh, grid or net). In this regard, located adjacent to the distal end or each arm are the apertures 606, which extend through the opposing side walls of each arm at its distal end(s). The apertures 606 can receive a securement device therethrough in the form of a clip (e.g. a C-clip) or a wire tie, to secure part of the mesh, grid or net to the arm. Each variation of the post bracket will be described in greater detail hereafter and with particular reference to Figure 7.

0 The curved arm 604, 604’ may be formed by way of a hot or cold forming operation (e.g. bending) of a specific length of SHS. The post bracket 600, 600’ may also be subjected to a treatment stage to reduce stresses therein or to increase stiffness, etc (e.g. thermal treatment such as annealing, or quenching, etc).

Referring now to Figures 7A to 7C, a section of an example fence line 700 is shown

5 that supports an auxiliary fence. Figure 7A shows a perspective view of the fence line 700, whereas Figures 7B and 7C respectively show plan and end views of the fence line 700.

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-21 The fence line 700 comprises a number of intermediate Y-posts 510 and at least one strainer post 610 located at an end of a given section of the fence line (e.g. at a corner, gate, etc). The posts have been pre-installed into the ground G. Each Y-post 510 has a post bracket 500 secured to an in-use upper end thereof, and each strainer post 610 has a post bracket 600 secured to an in-use upper end thereof. Each strainer post 610 also has an associated strainer assembly comprising a stay 730, thrust pad 732 and tensioning rod 734.

Typically the post brackets are secured to the fence posts after they have been installed in the ground.

Extending between and connected to the “verticals” of each of the Y-posts 510 and strainer post 610 is a generally vertical fence 725. Whilst the vertical fence 725 can be formed from conventional rows/lines of fence wire, or it can be formed from a length of wire mesh or wire grid, in the fence line embodiment shown in Figure 7, the vertical fence 725 comprises netting (e.g. having hexagonal- or diamond-shaped apertures).

More particularly, the vertical fence 725 comprises two, spaced lengths of netting 725A and 725B, each vertically located at an opposing side of the Y-posts 510 and strainer post 610 (i.e. in an opposing spaced relationship). This opposing spaced relationship is most clearly illustrated in Figures 7B and 7C, where it will be seen

0 that one of the lengths of vertical netting 725A is secured with respect to a distal edge of a stalk 512 of a given post 510, whereas the other length of vertical netting 725B is secured with respect to a distal edge of the projecting wings 514 of a given post 510.

Extending between and connected to lie on top of the post brackets 500 of each of

5 the Y-posts 510 and the post bracket 600 of each strainer post 610 is an auxiliary fence in the form of a canopy- or umbrella-like structure 750. Again, the structure 750 can be formed from conventional rows/lines of fence wire, or from wire mesh or wire grid. However, in the fence line embodiment shown in Figure 7, the

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-22structure 750 again comprises a length of netting that is secured on top of each post bracket. The netting may be fabricated and cut on site to have a length as long as the section of fence line to which it is to be secured. In addition, the width of the netting can be such that it overhangs each post bracket by a given dimension. For example, in the fence line embodiment as shown in Figures 5F and 7, the netting structure 750 can have a width of 1200mm and can overhang each post bracket by ~300mm.

Each length of netting 725A/B and 750 may be fabricated of a metal wire material (e.g. having hexagonal- or diamond-shaped apertures) and can be configured to have a relatively stiff or resilient characteristic, or it may be formed from a polymer strand to have a relatively flexible characteristic. Flexibility of the metal wire netting can be further adjusted by selecting a suitable wire gauge and aperture spacings.

The netting 725A/B is secured with respect to each post using suitable fasteners, such as wire ties or C-clips. An upper edge of each length of netting 725A/B is secured to the netting structure 750 using suitably spaced fasteners 752 (e.g. at spacings of every 200mm) such as wire ties or C-clips.The netting structure 750 is also secured with respect to the securing points (apertures 540/542 or 606) of each post bracket 500 or 600.

In this regard, and as best shown in Figure 7B, two spaced-apart lengths of e.g. high

0 tension support wire 740A and 740B can each be threaded through each of the apertures 542 and 606 of the post brackets 500, 600. The apertures are aligned and run along a given side of the fence line 700 (i.e. such that the support wires 740A and 740B locate at opposite sides of the fence line 700). The netting structure 750 can then be secured to the spaced-apart support wires 740A and 740B using suitably

5 spaced fasteners 754, such as wire ties or C-clips (e.g. at spacings of every 200mm).

It will be seen that the canopy- or umbrella-like structure 750 faces concave down in use. This means that, to climb the fence 700, a climbing animal (e.g. feral cats, rabbits, native animals, domestic pet, etc) must first climb up one of the vertical nettings 725A/B, and then climb back under the canopy- or umbrella-like structure

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-23 750. This puts the animal upside-down, acting as a deterrent. Further, because of the overhang of the structure 750, if the animal can climb to this overhang portion, the canopy will tend to flex and bounce around, acting as a further deterrent (e.g. often the animal will release and jump off). The animal must then climb over a curved upper structure of the canopy structure 750, and then back under the canopy, and so on.

Thus, the structure 750 can restrict or prevent the passage of animals over the fence line from either side thereof (e.g. keeping domestic/domesticated animals in and feral/wild animals out). This enables the fence to have applications beyond agriculture, such as in conservation, biosecurity, and the like.

Because the canopy- or umbrella-like structure 750 provides a generally downwards curved slope, when debris or the like falls or lands on the fence, it tends to fall off, or it can be easily dislodged from the structure (e.g. by the wind, by shaking of the fence, etc).

As set forth above, the fence line can employ post brackets 500’ and 600’ that have a curved arm 518’, 604’ extending from one side of the bracket only. The resultant fence line may only have a half canopy structure (i.e. the canopy is secured to extend out from the fence line along only one side thereof). Such a fence line may be employed where, for example, the animals on one side are able (or encouraged)

0 to climb over, but those on the other (i.e. the canopy) side are deterred or prevented.

For example, it may be desirable to secure domestic pets or domesticated animals on one side of a fence line, but to allow e.g. native animals to climb over the fence line, or vice versa, and so on. In another application, such a fence line may be used adjacent to a pre-existing natural barrier, such as a water-way (e.g. river, stream,

5 lake, etc), a ravine, a cliff edge, etc.

Referring now to Figures 8 A to 8C, a modified form of the end cap 602’ is shown. In Figures 8A and 8B, the cylindrical skirt 605 is removed for clarity (but is shown in Fig. 8C). The disc-like plate 608 of the end cap 602’ is modified as follows. A

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-24socket 620 is secured to the underside of the plate 608. An opening to the hollow 622 of the socket is aligned with a slot-like aperture 624 provided centrally through the plate 608.

In one version of the modified end cap 602’, the hollow 622 of the socket 620 and 5 the slot-like aperture 624 are each sized to snugly or even interferingly receive therein the U-shaped portion 516 of the post bracket 500 or 500’. The socket may additionally comprise e.g. a locking-type detent 626 therein to secure the U-shaped portion 516 within the hollow 622.

In a second version of the modified end cap 602’, the curved arm 604 or 604’ of the 10 post bracket 600, 600’ can be separated from the end cap 602. The separated arm

604 or 604’ can then be modified to have a projection (e.g. an elongate tongue) affixed thereto to extend downwardly from a concave side of the arm in use (i.e. in place of the cap 602). Again, the hollow 622 of the socket 620 and the slot-like aperture 624 can each be sized to snugly or even interferingly receive therein the projecting tongue of the post bracket 600, 600’.

In Figure 8C, the modified end cap 602’ is shown mounted into the open upper end of the hollow post 610. Again, the skirt 605 is sized to locate snugly or interferingly in the open upper end of the post 610, and can be secured therein by welding and/or by one or more grub or Tec screws, bolts, etc. This means that the modified end cap

0 602’ is able to act as an adaptor for the hollow post 610, to make it suitable for use with either the post bracket 500/500’ or the post bracket 600 /600’.

Referring now to Figure 9, a schematic depiction of the post bracket 500/500’ and post bracket 600 /600’ is shown. The post bracket as shown can comprise either of the mounting portions in the form of U-shaped portion 516 or end cap 602 (or the

5 post bracket 600 /600’ that is modified with an elongate tongue).

The schematic depiction in Figure 9 is provided to illustrate that the curvature of the elongate arm(s) 518, 518’ and 520 or 604, 604’ can be defined by a series of (i.e.

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-25 two or more) straight sections 901, 903, 905, 907, etc and 90 Γ, 903’, 905’, 907’, etc. These straight sections can also be separated by discrete curved sections of arm.

When combined, this series of straight sections can define arm(s) that, in an overall sense, are curved, and can generally define a concave that faces down in use.

Hence, the term “curved” in relation to each arm is to be interpreted broadly.

Variations and modifications may be made to the embodiments previously described without departing from the spirit or ambit of the disclosure.

For example other arrangements (or a combination of arrangements) may be used for mounting the mounting portion to the post. Rather than apertures and fasteners, the mounting portion may instead comprise a series of hooks that hook into the apertures of the post.

The extension arm may take different forms, depending on its intended use. For example, when the extension arm is curved along its length, it can support a version of a capped fence (i.e. having a curved solid sheet cap). It may also be redesigned to support e.g. a member such as a plank, sheet, board, section, timber length, etc. thereat.

Other locking mechanisms may be provided to retain the extension arm at a chosen angle relative to the mounting portion. For example, the locking mechanism may simply rely on friction between two parts (rather than e.g. positive interference of

0 teeth and apertures).

In the claims which follow and in the preceding description, except where the context requires otherwise due to express language or necessary implication, the word “comprise” or variations such as “comprises” or “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude

5 the presence or addition of further features in various embodiments.

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Claims (3)

Claims

1. An attachment for a fence post, the attachment comprising:

a mounting portion configured for being secured at an in-use upper end of the post; and

5 at least one elongate extension arm extending from the mounting portion, the extension arm having a curvature for at least part of a length thereof.

2 0 42. An attachment as claimed in claim 41, the attachment otherwise as defined in any one of claims 1 to 22.

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2 5 comprising the more than two posts to support an auxiliary fence arrangement extending along the fence line.

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-3238. A fencing system as claimed in claim 37, wherein the mounting portion is further configured for being mounted to the stalk of the post by at least one fastening element.

39. A fencing system as claimed in claims 37 or 38, wherein the mounting

5 portion and extension arm are otherwise each as defined in any one of claims 25 to 36.

40. A fencing system as claimed in any one of claims 25 to 39, wherein an axis of the extension arm lies in a plane that is parallel to the stalk when the mounting portion is secured to the stalk at the upper end of the post.

10 41» An attachment for a fence post of the type that has a Y- or T- shaped profile, the post comprising a first elongate flange that defines a stalk of the post, and two other projecting flanges, the attachment comprising:

a mounting portion configured for being secured to the stalk at an in-use upper end of the post; and

15 at least one elongate extension arm extending from the mounting portion such that, when the mounting portion is secured to the stalk at the upper end of the post, the at least one elongate extension arm is able to extend over and interact with an upper edge of one of the post projecting flanges, the extension arm extending along an axis having a curvature for at least part of a length thereof.

2 0 upper end of the post, the at least one elongate extension arm is able to extend over and interact with an upper edge of one of the post projecting flanges, the extension arm extending along an axis having a curvature for at least part of a length thereof;

such that, in use, the attachments can be arranged in the fence line

2 5 attachment is further configured to interact with the post upper end such that, when secured thereto, the attachment is able to resist rotation with respect to the post.

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-31

34. A fencing system as claimed in any one of claims 25 to 33 wherein the or each extension arm is configured to support an auxiliary fence arrangement to extend the protection provided by a fence when mounted to the fence post.

35. A fencing system as claimed in claim 34 wherein the auxiliary fence 5 arrangement comprises a length of mesh, grid or net.

36. A fencing system as claimed in claim 34 or 35 wherein the auxiliary fence arrangement further comprises multiple securement devices, each for securing the mesh, grid or net with respect to the or each extension arm.

37. A fencing system comprising:

10 more than two posts, each post of the type that has a Y- or T- shaped profile and each post comprising a first elongate flange that defines a stalk of the post, and two other projecting flanges, the more than two posts able to be arranged to define a fence line; and an attachment for each of the more than two posts, the attachment

15 comprising:

a mounting portion configured for being secured to the stalk at an inuse upper end of the post; and at least one elongate extension arm extending from the mounting portion such that, when the mounting portion is secured to the stalk at the

2 5 such that, in use, the attachments can be arranged in the fence line to support an auxiliary fence arrangement extending along the fence line.

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-3026. A fencing system as claimed in claim 25 wherein the curvature of the extension arm generally extends for a length thereof, from a proximal arm end where the arm extends laterally from the mounting portion to a distal arm end.

27. A fencing system as claimed in claim 25 or 26, the attachment comprising

5 opposing extension arms, each extension arm extending laterally from the mounting portion and in an opposite direction to the other extension arm.

28. A fencing system as claimed in any one of claims 25 to 27 wherein a distal end of the or each arm is adapted so as to provide a securement point thereat.

29. A fencing system as claimed in claim 28 wherein the adaptation of the arm 10 distal end so as to provide a securement point thereat comprises:

a loop formation that is defined by looping back distal extent of the arm;

an aperture that is formed to extend through the distal end of the arm.

30. A fencing system as claimed in any one of claims 25 to 29 wherein the mounting portion is configured for being mounted to the stalk of the post by one or

15 more fasteners.

31. A fencing system as claimed in claim 30, the attachment comprising a single length of rod or bar that is bent to define the mounting portion and the or each extension arm.

32. A fencing system as claimed in claim 31 wherein the mounting portion is 2 0 defined by a U-shaped formation of the rod or bar, and wherein the or each extension arm is defined by a portion of the rod or bar that extends laterally from a respective stem of the U-shaped formation, this portion of the rod or bar further being bent to provide said curvature for at least part of a length thereof.

33. A fencing system as claimed in any one of claims 25 to 32, wherein the

2 0 upper end of the post, the at least one elongate extension arm is able to extend over and interact with an uppermost edge of one of the post projecting flanges whereby the extension arm is able to resist movement down with respect to the post, the extension arm extending along an axis having a curvature for at least part of a length thereof;

2 5 at least one elongate extension arm extending from the mounting portion, the extension arm having a curvature for at least part of a length thereof.

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-2922. An attachment as claimed in claim 21, wherein the mounting portion and extension arm are otherwise each as defined in any one of claims 1 to 5, 12, 13, 15 to 13, or 16 to 18.

23. A fencing system comprising:

5 at least one post; and an attachment for the at least one post, the attachment as set forth in any one of claims 1 to 22.

24. A system as claimed in claim 23 further comprising an auxiliary fence arrangement as set forth in any one of claims 16 to 18.

10 25. A fencing system comprising:

two or more posts, each post of the type that has a Y- or T- shaped profile and each post comprising a first elongate flange that defines a stalk of the post, and two other projecting flanges, the two or more posts able to be arranged to define a fence line in which the stalk of each post projects orthogonally to the fence line; and

15 an attachment for each of the two or more posts, the attachment comprising:

a mounting portion configured for being secured to the stalk at an inuse upper end of the post; and at least one elongate extension arm extending from the mounting portion such that, when the mounting portion is secured to the stalk at the

2 0 end to be secured thereat.

13. An attachment as claimed in claim 11 wherein the mounting portion comprises a cap component configured for being secured within the open upper end.

14. An attachment as claimed in claim 13 wherein the cap component is adapted 2 5 for receiving the mounting portion of the attachment as set forth in any one of claims 6 to 11, whereby the attachment is able to be secured with respect to the hollow section.

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-2815. An attachment as claimed in claim 12 or 13 wherein the or each extension arm comprises a length of tube that is secured to the mounting portion, the length of tube being bent to provide said curvature for at least part of a length thereof.

16. An attachment as claimed in any one of the preceding claims wherein the or 5 each extension arm is configured to support an auxiliary fence arrangement to extend the protection provided by a fence when mounted to the fence post.

17. An attachment as claimed in claim 16 wherein the auxiliary fence arrangement comprises a length of mesh, grid or net.

18. An attachment as claimed in claim 17 wherein the auxiliary fence

10 arrangement further comprises multiple securement devices, each for securing the mesh, grid or net with respect to the or each extension arm.

19. An attachment for a fence post of the type that comprises at least one elongate flange, the attachment comprising:

a mounting portion configured for being mounted to the at least one flange 15 of the post by at least one fastening element; and at least one elongate extension arm extending from the mounting portion, the extension arm having a curvature for at least part of a length thereof.

20. An attachment as claimed in claim 19, wherein the mounting portion and extension arm are otherwise each as defined in any one of claims 1 to 11, or 16 to

20 18.

21. An attachment for a fence post of elongate hollow section, the hollow section comprising an open in-use upper end, the attachment comprising:

a mounting portion configured for being mounted to locate at the open upper end to be secured thereat; and

2 5 fasteners.

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-278. An attachment as claimed in claim 6 or 7, the attachment comprising a single length of rod or bar that is bent to define the mounting portion and the or each extension arm.

9» An attachment as claimed in claim 8 wherein the mounting portion is 5 defined by a U-shaped formation of the rod or bar, and wherein the or each extension arm is defined by a portion of the rod or bar that extends laterally from a respective stem of the U-shaped formation, this portion of the rod or bar further being bent to provide said curvature for at least part of a length thereof.

10. An attachment as claimed in any one of claims 6 to 9 wherein the post is of 10 a type that comprises a first elongate flange that defines a stalk of the post, and at least two other elongate projecting flanges, and wherein the mounting portion is configured for mounting to the stalk of the post.

11. An attachment as claimed in any one of claims 6 to 10, wherein the attachment is further configured to interact with the post upper end such that, when

15 secured thereto, the attachment is able to resist movement down and/or rotation with respect to the post.

12. An attachment as claimed in any one of claims 1 to 5 wherein the fence post is of elongate hollow section and comprises an open in-use upper end, and wherein the mounting portion is configured for being mounted to locate at the open upper

2 0 fence post is of a type that comprises at least one elongate flange, and wherein the mounting portion is configured for being secured to the at least one flange of the post.

7* An attachment as claimed in claim 6 wherein the mounting portion is configured for being mounted to the at least one flange of the post by one or more

2* An attachment as claimed in claim 1 wherein the curvature of the extension arm generally extends for a length thereof, from a proximal arm end where the arm extends laterally from the mounting portion to a distal arm end.

10

3. An attachment as claimed in claim 1 or 2, the attachment comprising opposing extension arms, each extension arm extending laterally from the mounting portion and in an opposite direction to the other extension arm.

4, An attachment as claimed in any one of the preceding claims wherein a distal end of the or each arm is adapted so as to provide a securement point thereat.

15 5* An attachment as claimed in claim 4 wherein the adaptation of the arm distal end so as to provide a securement point thereat comprises:

a loop formation that is defined by looping back distal extent of the arm;

an aperture that is formed to extend through the distal end of the arm.

6. An attachment as claimed in any one of the preceding claims wherein the

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