A cover for attachment to an elongate member and a corresponding method, kit and framework

Abstract

A cover for attachment to an elongate member is provided. The cover comprises: an optical element configured to redirect light to at least partially obscure the elongate member from at least one viewp

Description

FIELD This invention relates to an apparatus for hiding visual obstruction and, more particularly, to a cover for attachment to an elongate member to at least partially obscure the elongate member from view, a method of obscuring an elongate member, a kit for covering a framework of elongate members, and a framework comprising one or more elongate members. BACKGROUND Security bars and grilles are used to secure windows and doors. They are commonly formed from bars or struts extending across the opening of the window or door. While providing security by preventing unwanted access, these structures may be unsightly or block views for a viewer looking through the window or door. Decorative covers intended to hide such structures may themselves further obscure the viewer’s view through the door or window. Similarly, other frameworks of bars, struts or other elongate members such as parts of pylons, cranes or scaffolds may be unattractive in appearance or block an observer’s view. The present invention seeks to address these issues by providing a device that obscures their appearance. SUMMARY According to a first aspect of the present disclosure, a cover for attachment to an elongate member is provided. The cover comprising: an optical element configured to redirect light to at least partially obscure the elongate member from at least one viewpoint; and at least one attachment element configured to attach the optical element to the elongate member. This provides a cover which can be used to obscure the appearance of an elongate member. The cover may further comprise one or more of the following features. The optical element may be a lens. This is an effective way to obscure the elongate member. The optical element may be a lenticular lens. Such a lens can be particularly effective in obscuring an elongate member. The optical element may be elongate in a first direction. This helps to obscure the member, which is itself elongate. The optical element may have a curved or arched cross-sectional profile in a plane arranged generally perpendicular to the first direction. This shape can help redirect light to obscure the elongate element. The optical element may extend through at least a 60 degree arc, preferably a 100 degree arc, more preferably a 120 degree arc. The wider the optical element (i.e. the greater the arc angle), the more the elongate member is covered at oblique angles. The optical element may be a lenticular lens and may comprise a plurality of elongate lenticules, the lenticules being aligned parallel to the first direction. A lenticular lens arranged in this manner can effectively redirect light to obscure the elongate member. The optical element may be elongate in a first direction and: the at least one attachment element extends along a length of the optical element in the first direction; or the at least one attachment elements comprise a first attachment element and a second attachment element, the first attachment element being spaced from the second attachment element in the first direction. This can result in a secure attachment of the cover / optical element to the elongate member. The or each attachment element may be configured to position the optical element at a separation distance from a surface of the elongate member; wherein optionally the separation distance is uniform along the length of the cover in the first direction. Spacing the optical element from the surface of the elongate member means that more light is diverted to either side of the elongate member thereby reducing the visibility of the elongate member through the optical element. The or each attachment element may comprise a clip configured to snap fit onto the elongate member. This allows for easy attachment of the cover to the elongate member. The optical element may be elongate in a first direction wherein the or each attachment element comprises a concave seat arranged to extend around an attachment axis corresponding to a longitudinal axis of the elongate member, the attachment axis being parallel to the first direction. This also allows for easy attachment of the cover to the elongate member. The optical element may comprise a primary optical element, and a plurality of secondary optical elements at an angle to the primary optical element, the primary optical element arranged between the secondary optical elements. The primary optical element provides the front-on obscuring of the elongate member and so is optimised for this, with the secondary optical elements providing supplementary obscuring for less-direct angles. The attachment element may comprise an interface member configured to attach to the elongate member, and a connector configured to attach the optical element to the interface member. This allows for the cover to be attached to elongate members where other methods such as snap fitting are not appropriate. The elongate member may be one of: a structural strut or bar; or a security bar for a door or window. These are typical elongate members which can be unattractive, and hence a user may want to obscure. According to a second aspect of the present disclosure, a method of obscuring an elongate member is provided. The method comprises: providing a cover as discussed herein; and attaching the cover to the elongate member using the at least one attachment member. This method results in the cover obscuring the appearance of the elongate member. The method may further comprise one or more of the following features. Providing the cover may comprise determining a width of the elongate member measured perpendicular to its elongate direction and selecting a cover having a width which is no more than 2 times the width of the elongate member, preferably no more than 1.7 times the width of the elongate member. If the cover is too wide with respect to the elongate member, the view beyond the cover / elongate member would be obscured and hence the effect of the cover would be less subtle. Providing the cover may comprise determining a separation distance at which the optical element is from a surface of the elongate member, a ratio of the separation distance to the width of the elongate member being between 8:13 and 18:13. This provides a good balance between the competing effects of the spacing. The farther away the optical element is from the elongate member, the more light is diverted to either side of the elongate member thereby reducing the visibility of the elongate member through the optical element. However, the closer the optical element is to the elongate member, the wider the angle of the optical element is to the elongate member. According to a third aspect of the present disclosure, a kit for covering a framework of elongate members is provided. The kit comprises a plurality of covers as discussed herein. This kit allows for the elongate members of the framework to be obscured. According to a fourth aspect of the present disclosure, a framework is provided. The framework comprises: one or more elongate members; and at least one cover as discussed herein; wherein each cover of the at least one covers extends along an elongate member of the one or more members and is secured thereto by the one or more attachment elements of the cover. The elongate members of the framework are obscured by the covers being attached thereto. The framework may further comprise one or more of the following features. Each cover may be elongate in a direction which is parallel to an elongate direction of the elongate member to which it is attached. This aligns the cover and the elongate member, effectively obscuring it. The one or more elongate members may form: a security grille for a door or window, wherein each of the elongate members is a bar or strut of the security grille; or a crane framework, scaffold or pylon wherein each of the elongate members is a bar or strut. These are typical elongate members which can be unattractive, and hence a user may want to obscure. The cover may be arranged to at least partially surround the elongate member. This helps to obscure the elongate member. The cover may have a width in a direction perpendicular to the first direction which is no more than 2 times the width of the elongate member in the same direction, preferably no more than 1.7 times the width of the elongate member. If the cover is too wide with respect to the elongate member, the view beyond the cover / elongate member would be obscured and hence the effect of the cover would be less subtle. The one or more attachment elements of the or each cover may be sized to snap-fit onto the elongate member to which it is attached. This allows for easy attachment of the cover to the elongate member. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the disclosure will now be described, by way of example only, with reference to the following non-limiting schematic figures in which: Figure 1 is a perspective view of a first cover according to the invention attached to an elongate member; Figure 2 is an end view of the cover of Figure 1; Figure 3 is a side view of the cover of Figure 1; Figure 4 is an end view of the cover of Figure 1 attached to an elongate member; Figure 5 is a side view of the cover of Figure 1 attached to an elongate member; Figure 6 is a perspective view of a framework according to the invention; Figure 7 is a perspective view of a second cover according to the invention attached to an elongate member; Figure 8 is an end view of the cover of Figure 7 attached to an elongate member; and Figure 9 is a perspective view of a third cover according to the invention spaced from an elongate member. DETAILED DESCRIPTION Figures 1 to 5 show a cover 1 according to a first embodiment. This cover 1 can be referred to as a first cover. The cover 1 being for attachment to an elongate member 2 as best shown in Figures 1,4 and 5. The elongate member 2 may be a bar for a security grille. The member 2 may be defined as elongate in that it is longer in one dimension, along a longitudinal axis 6, than the others. The cover 1 is elongate in a first direction. In use, particularly when the cover 1 is attached to the elongate member 2, the first direction may be parallel to a longitudinal axis 6 of the elongate member 2. The cover 1 comprises an optical element 3, being a lenticular lens sheet. The optical element 3 is configured to redirect light to at least partially obscure the elongate member 2 from at least one viewpoint. The cover 1 also comprises one or more attachment elements 4. The first cover 1 has an attachment element 4 either side of the optical element 3. In the first cover 1, each attachment element 4 extends along a length of the cover 1 in the first direction. The attachment elements 4 comprise a pair of resilient arms which define an opening 6a for receiving an elongate member 2. The resilient arms are biased to a position where a spacing between the arms is smaller than a reference dimension (such as a diameter) of the elongate member. Each arm may be formed with an apex arranged to receive the elongate member 2, this can allow the cover 1 to be used with elongate members 2 of different reference dimension (such as width or diameter). The arms may be pivoted with respect to the optical element 3 such that a distance between the apexes of the arms can be varied. The attachment element 4 of this example is formed substantially integrally / unitary with the optical element 3 of the cover 1. For example, the cover 1 may be formed of a single sheet of material which is shaped to form the optical element 3 and the attachment element(s) 4. The cover 1 may be formed as a single piece through extrusion, 3D printing, or any other suitable manufacturing method. Of course, other arrangements for the attachment element 4 may be used, as discussed herein. For example, this could incorporate one or more of: an adhesive element, a spacer with adhesive, a hook-and-loop strap (e.g. Velcro), circlip, bracket, or fastener. As in the illustrated example, the optical element 3 may be elongate in the first direction. The optical element 3 may have a curved or arched cross-sectional profile in a plane arranged generally perpendicular to the first direction. However, in further examples the optical element 3 may be substantially flat. In use, the cover 1 of the present invention may be arranged to at least partially obscure and / or surround the elongate member 2. As best shown in Figure 2, the illustrated optical element 3 extends through a 180 degree arc about the attachment axis 5. As explained in more detail below, the optical element 3 is formed of a primary optical element 3a, and one or more secondary optical elements 3b. It is the combination of each of these that defines the extent of the arc. As discussed herein, other arc angles are also possible. For example, the optical element 3 or cover 1 may extend through at least a 60 degree arc, preferably a 100 degree arc, more preferably a 120 degree arc. The arc is in a plane arranged generally perpendicular to the first direction. An attachment axis 5 can be defined for the attachment elements 4 as an axis defined through a centre point of an opening 6a of one or more of the attachment elements 4, the opening being configured to receive the elongate member 2 in use. The attachment axis 5 may be generally parallel to the first direction. However, other attachment elements 4 may be used where this is not the case. The arc of the optical element 3 or cover 1 may be about this attachment axis 5. Without being bound by theory, the wider the optical element 3 (i.e. the greater the arc angle), the more the elongate member 2 is covered at oblique angles (i.e. not perpendicular to a front of the optical element 3. This improves the effect of hiding the elongate member 2 from all locations in a room / environment / space. However, the narrower the optical element 3 (up to being the same width as the reference dimension (such as the diameter) of the elongate member 2) the less of the view beyond the cover 1 and / or elongate member 2 is obscured, so the more low-profile the resulting effect is when viewed from the front. As shown in Figure 2, the optical element 3 may be formed of a primary optical element 3a, and one or more secondary optical elements 3b. In the examples of Figure 2, there are two secondary optical elements 3b, either side of the primary optical element 3a in a plane arranged generally perpendicular to the first direction. Each secondary optical element 3b may be angled with respect to the primary optical element 3a. In other words, a separation distance from a surface of the elongate member 2 may be different for the primary optical element 3a and each secondary optical element 3b. Specifically, for example, each secondary optical element 3b may have a smaller separation distance than the primary optical element 3a. The primary optical element 3a performs the primary redirection of light to at least partially obscuring the elongate member 2. The primary optical element 3a may, therefore, be provided substantially centrally on the cover 1. The cover 1 may be symmetric in a plane defined in the first direction. In use, the primary optical element 3a may be positioned substantially “front on” to the elongate member 2. That is, in the primary direction that the elongate member 2 will be viewed from in use. The primary optical element 3a may extend through an arc of at least 40 degrees, preferably at least 50 degrees, more preferably at least 60 degrees. Each secondary optical element 3b may extend through an arc of at least 20 degrees, preferably at least 30 degrees. Collectively, the sum of the arcs of the primary optical element 3a and each secondary optical element 3b form the full arc of the optical element 3. The optical element 3 can also be defined in relation to the edge of the elongate member 2. Particularly, be defining a plane which touches, but does not intersect with, the elongate member 2 and which passes through the edge of the optical element 3. This can be defined as the “edge plane”. In examples with a primary optical element 3a and secondary optical elements 3a, a “primary edge plane” and a “secondary edge plane” can be defined. There will be two of each edge plane, for either side of the elongate member 2 and optical element 3. Between the two edge planes, an edge angle can be defined. The edge angle may be at least 20 degrees. For examples with a primary optical element 3a and secondary optical elements 3a, there is a primary edge angle and a secondary edge angle. The primary edge angle may be at least 20 degrees. The secondary edge angle may be at least 40 degrees, preferably at least 50 degrees. The lenticular lens sheet forming the optical element 3 of the first embodiment comprises a plurality of elongate lenticules 7, each lenticule 7 being a curved lens. The lenticules 7 are aligned parallel to the first direction, such that the lenticules 7 are parallel to the longitudinal axis 6 of the elongate member 2. The lenticules 7 may be arranged adjacent to one another, such that they have intersecting radii of curvatures. In use, the lenticules 7 may face the elongate member 2. That is, the lenticules 7 may be on the same side of the cover 1 as the attachment element(s) 4. In other words, the lenticles 7 may be on an inner side of an arc of the cover 1. As best shown in Figure 4, the attachment element(s) 4 may be configured to position the optical element 3 at a separation distance 8 from a surface of the elongate member 2. The separation distance 8 may be uniform along the length of the cover 1. The separation distance may be defined with respect to the size of the elongate member 2 that the cover 1 is to be attached on. Specifically, for example, this could be based on a reference dimension of the elongate member 2, the reference dimension being a dimension of the elongate member 2 perpendicular to the longitudinal axis 6. The reference dimension could be a diameter or width of the elongate member 2. The ratio between the reference dimension and the separation distance may be between 8:13 and 18:13. In practice, the separation distance may be between 8 mm to 18 mm. Without being bound by theory, the farther away the optical element 3 is from the elongate member 2, the more light is diverted to either side of the elongate member 2 thereby reducing the visibility of the elongate member 2 through the optical element 3. However, the closer the optical element 3 is to the elongate member 2, the wider the angle of the optical element 3 is to the elongate member 2 (defined below as the edge angle). There is therefore a balance between a large separation distance and a short separation distance. Figure 6 shows a plurality of covers 1 according to the first embodiment attached to a corresponding plurality of elongate elements 2, as discussed in more detail below. This forms a framework. Figures 7 and 8 show a second embodiment of a cover 1, which can be referred to as a second cover 1. Unless otherwise expressly stated to the contrary, all features discussed in relation to the first cover 1 are equally applicable to the second cover 1, and vice versa. The key difference for this second embodiment of the cover 1 is the use of alternative attachment elements 4. Reference will be made to a single attachment element 4, but in each case there may be multiple attachment elements 4 on a single cover 1 as discussed herein. For example, Figures 7 and 8 show two attachment elements 4. This is a two-part attachment element 4, comprising an elongate member interface member 4d and one or more connector(s) 4e. The interface member 4d is attachable to the elongate member 2, thus providing an interface between the elongate member 2 and the optical element 3. The connector(s) 4e are for attaching the optical element 3 to the interface member 4d, and hence the elongate member 2. The interface member 4d may be attached to the elongate member 2 in any suitable method. This could include, for example a strap 4f (such as a cable tie) as shown in Figures 7 and 8. Alternatively, other systems such as an adhesive element, a spacer with adhesive, a hook-and-loop strap (e.g. Velcro), circlip, bracket, or fastener. This interface member 4d may particularly be used where it is not possible to directly attach the optical element 3 to the elongate member 2. The optical element 3 is attached to the interface member 4d with the connector(s) 4e. For example, this could be with one or more resilient arms which snap fit into the interface member 4d. Alternatively, the optical element 3 may slide into engagement with the interface member 4d, or any of the attachment systems discussed herein. The optical element 3 and connectors 4e may be formed substantially integrally / unitary with one another. For example, The optical element 3 and connectors 4e may be formed of a single sheet of material which is shaped to form the optical element 3 and the connectors 4e. The optical element 3 and connectors 4e may be formed as a single piece through extrusion, 3D printing, or any other suitable manufacturing method. The interface member 4d may be formed in any suitable manufacturing method, including injection moulding, extrusion, 3D printing, or the like. Other examples of attachment elements 4 can be used with any of the examples discussed herein. For example, this could incorporate one or more of: an adhesive element, a spacer with adhesive, a hook-and-loop strap (e.g. Velcro), circlip, bracket, or fastener. Figures 9 shows a third embodiment of a cover 1, which can be referred to as a third cover 1. Unless otherwise expressly stated to the contrary, all features discussed in relation to the first cover 1 and / or the second cover 1 are equally applicable to the third cover 1, and vice versa. Again, a different attachment element 4 is used in this cover 1. In this case, the attachment element(s) 4 are in the form of one or more clips. In the illustrated example, the attachment elements 4 comprise a first attachment element 4a and a second attachment element 4b, the first attachment element 4a being spaced from the second attachment element 4b in the first direction. That is, the attachment element 4 is in the form of a pair of clips configured to attach the optical element 3 to the elongate member 2. An attachment axis 5 can be defined for these attachment elements 4 as an axis defined through a centre point of an opening 6a of one or more of the attachment elements 4, the opening being configured to receive the elongate member 2 in use. The attachment axis 5 may be generally parallel to the first direction. However, other attachment elements 4 may be used where this is not the case. The optical element 3 is shown arranged around the attachment axis 5 of the cover 2. The clips have a concave seat 6 arranged to extend around the attachment axis 5 of the cover 1, corresponding to the longitudinal axis 6 of the elongate member 2, the attachment axis 5 being parallel to the first direction. The cover 1 may be configured, for example by selection of appropriate dimensions of the attachment elements 4, such that the attachment axis 5 of the cover corresponds to the longitudinal axis 6 of the elongate member 2. The concave seat 6 may be formed from a pair of resilient arms defining the opening 6a for receiving the elongate member 2 in use. The arms may be configured to snap fit onto the elongate member as shown in Figures 4 and 5. That is, the arms may be biased to a position with a spacing between the arms smaller than a reference dimension (such as a diameter) of the elongate member 2. As in the illustrated embodiment, the opening may be an arch-shaped cavity arranged to receive a cylindrical bar of a corresponding diameter, such that the arms resiliently grip onto the bar in use. The attachment element(s) 4 may also comprise a spacer 4c and / or may be configured to position the optical element 3 at a separation distance 8 from a surface of the elongate member 2. The separation distance 8 may be uniform along the length of the cover 1. Each attachment member 4a, 4b may be have a same length as measured from the optical element 3 to the attachment axis 5. This separation distance can follow the disclosure herein in relation thereto. The arc of the optical element 3 and / or cover 1 may be about this attachment axis 5. In the examples shown herein, a single cover 1 is shown attached to an elongate member 2. This may be any of the covers 1 discussed herein. In further examples, there may be a plurality of covers 1 attached to the elongate member 2, with each cover 1 at least partially overlapping along the longitudinal axis 6 of the elongate member 2. In such an example, each cover 1 may be rotationally offset about the longitudinal axis 6. Particularly, where there are N covers 1 overlapping along the longitudinal axis 6, the covers may be spaced from one another by (360 / N)° about the longitudinal axis 6. That is, they may be rotationally symmetric with N-fold symmetry. In a further embodiment a kit is provided for covering a framework of elongate members, the kit comprising a plurality of covers according to any embodiment of the invention. The kit may comprise a set of covers having sizes and shapes configured to match the elongate members of a known framework, while being sized to minimise the extent of the covers into any gaps between the elongate members to thereby avoid disruption of an observer’s view through the framework. In a further embodiment, a framework is provided comprising one or more elongate members and at least one cover according to any embodiment of the invention. An example of such a framework comprising a plurality of elongate members 2 and a plurality of covers 1 is shown in Figure 6. In the example shown in Figure 6, each of the covers 1 is as described above, and extends along one of the elongate members 2 and is secured thereto by its attachment elements 4. Each cover 1 is elongate in a direction which is parallel to an elongate direction of the elongate member 2 to which it is attached. The one or more elongate members 2 of the framework according to the present invention may form a security grille for a door or window, a crane framework, a scaffold, a pylon or similar. Each of the elongate members may be a bar or strut of the structure. A further embodiment provides a method of obscuring the elongate member 2, the method comprising providing a cover according to any embodiment described herein and attaching the cover to the elongate member using the attachment member(s). When providing the cover, the elongate member may be measured to determine a width of the elongate member measured perpendicular to its longitudinal axis (elongate direction). A cover may be selected having a width which is no more than 2 times bigger than the width of the elongate member. In certain examples, A cover may be selected having a width which is no more than 1.7 times bigger than the width of the elongate member. While embodiments according to the present disclosure have been described above and illustrated in the drawings, these are for example only and are non-limiting. It will be appreciated by those skilled in the art that alternatives are possible within the ambit of the disclosure. For example, in the illustrated example, the optical element is a lenticular lens sheet. In any embodiment, the optical element may alternatively be any lens or array of lenses configured to redirect light to at least partially obscure the elongate member from at least one viewpoint. In the present disclosure, the term lenticular lens refers to an array of lenses or lens elements (lenticules) configured to refract light. A lenticule is an individual lens or lens element, a plurality of which make up the lenticular lens. The lenticules may therefore be formed as ridges on the surface of the lenticular lens sheet. The lenticular lens may be characterised based on how many lenticules fit within an inch of the lens surface (lenticules per inch, LPI). In the present case, the lenticular screen may have 40 LPI or greater. In any embodiment, the elongate member may be, for example, a structural strut or bar, a security bar for a door or window, a framework element for a crane, scaffold or similar. The cover(s) of the present invention may be attached to the inside of the security grille or other framework to obscure the bars from the point of view of an observer positioned on the inside of the bars, thereby allowing them to see the view through the window with limited obscuring of the view. Additionally, or alternatively, one or more covers may be attached on an outside of the grille or other framework to obscure them from the point of view of an external observer looking at the structure. The cover of the present invention may be fitted during manufacture, or be retrofitted after installation of the elongate member, for example on a security bar or grille. The cover of the present invention may obscure the appearance of the elongate member while limiting disruption of a view beyond or through the structure (e.g. the window security grille) to which it is attached. By providing a cover with an optical element and attachment element(s), the present invention may be securely fitted and simple to manufacture, while securely attaching the cover to the element it is configured to obscure. By using a lenticular lens as the optical element, the present invention may provide a lightweight and durable means of obscuring the elongate member.

Claims

1. A cover for attachment to an elongate member, the cover comprising: an optical element configured to redirect light to at least partially obscure the elongate member from at least one viewpoint; andat least one attachment element configured to attach the optical element to the elongate member.

2. The cover of claim 1 wherein the optical element is a lens.

3. The cover of any preceding claim wherein the optical element is a lenticular lens.

4. The cover of any preceding claim wherein the optical element is elongate in a firstdirection.

5. The cover of claim 4 wherein the optical element has a curved or arched cross-sectional profile in a plane arranged generally perpendicular to the first direction.

6. The cover of claim 5 wherein the optical element extends through at least a 60 degree arc, preferably a 100 degree arc, more preferably a 120 degree arc.

7. The cover of any one of claims 4 to 6 wherein the optical element is a lenticular lens and comprises a plurality of elongate lenticules, the lenticules being aligned parallel to the first direction.

8. The cover of any preceding claim wherein the optical element is elongate in a first direction and:the at least one attachment element extends along a length of the optical element in the first direction; orthe at least one attachment elements comprise a first attachment element and a second attachment element, the first attachment element being spaced from the second attachment element in the first direction.

9. The cover of any preceding claim wherein the or each attachment element is configured to position the optical element at a separation distance from a surface of the elongate member;wherein optionally the separation distance is uniform along the length of the cover in the first direction.

10. The cover of any preceding claim wherein the or each attachment element comprises a clip configured to snap fit onto the elongate member.

11. The cover of any preceding claim wherein the optical element is elongate in a first direction wherein the or each attachment element comprises a concave seat arranged to extend around an attachment axis corresponding to a longitudinal axis of the elongate member, the attachment axis being parallel to the first direction.

12. The cover of any preceding claim, wherein the optical element comprises a primary optical element, and a plurality of secondary optical elements at an angle to the primary optical element, the primary optical element arranged between the secondary optical elements.

13. The cover of any preceding claim, wherein the attachment element comprises an interface member configured to attach to the elongate member, and a connector configured to attach the optical element to the interface member.

14. The cover of any preceding claim wherein the elongate member is one of: a structural strut or bar; ora security bar for a door or window.

15. A method of obscuring an elongate member, the method comprising: providing a cover as claimed in any preceding claim; and attaching the cover to the elongate member using the at least one attachment member.

16. The method of claim 15 wherein providing the cover comprises determining a width of the elongate member measured perpendicular to its elongate direction and selecting a cover having a width which is no more than 2 times the width of the elongate member, preferably no more than 1.7 times the width of the elongate member.

17. The method of claim 15 or 16, wherein providing the cover comprises determining a separation distance at which the optical element is from a surface of the elongate member, a ratio of the separation distance to the width of the elongate member being between 8:13 and 18:13.

18. A kit for covering a framework of elongate members, the kit comprising a plurality of covers according to any of claims 1 to 14.

19. A framework comprising:one or more elongate members; andat least one cover as claimed in any of claims 1 to 14;wherein each cover of the at least one covers extends along an elongate member of the one or more members and is secured thereto by the one or more attachment elements of the cover.

20. The framework of claim 19 wherein each cover is elongate in a direction which is parallel to an elongate direction of the elongate member to which it is attached.

21. The framework of any one of claims 19 to 20 wherein the one or more elongate members form:a security grille for a door or window, wherein each of the elongate members is a bar or strut of the security grille; ora crane framework, scaffold or pylon wherein each of the elongate members is a bar or strut.

22. The framework of any one of claims 19 to 21 wherein the cover is arranged to at least partially surround the elongate member.

23. The framework of any one of claims 19 to 22 wherein the cover has a width in a direction perpendicular to the first direction which is no more than 2 times the width of the elongate member in the same direction, preferably no more than 1.7 times the width of the elongate member.

24. The framework of any one of claims 19 to 23 wherein the one or more attachment elements of the or each cover are sized to snap-fit onto the elongate member to which it is attached.s

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