Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
  • E04F13/0801—Separate fastening elements
  • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
  • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
  • E04F13/0821—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements located in-between two adjacent covering elements
  • E04F13/0826—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements located in-between two adjacent covering elements engaging side grooves running along the whole length of the covering elements

Definitions

• the present invention relates to a fastener for cladding or rain screen elements, more particularly for fastening cladding panels to a substrate.
• the present invention further relates to a cladding or rain screen system comprising a plurality of cladding panels and a plurality of fasteners for fastening the cladding panels to a substrate.
• the present invention also relates to cladding panel for use in a cladding system.
• Cladding systems also referred to as rain screen systems, are known for providing an alternative exterior covering to the brick- or blockwork or other substructure of a building.
• Such cladding systems typically include a substrate, for example horizontally mounted rails, onto which cladding panels can be attached by means of metal fasteners or clips.
• cladding panels or tiles After or during installation of such a cladding system, it may be. necessary for one or more of the cladding panels or tiles to be removed or replaced, for example if a cladding panel is damaged. It is a disadvantage of known cladding systems that it is generally not possible to remove or replace one or more individual panels without damaging one or more of the adjacent panels, or without modification to the replacement panel.
• panel when used herein is intended to encompass known forms of cladding elements, such as elements which are fastened or hung on to substrates, including elements such as tiles.
• a fastener for use in a cladding system comprising at least one course of panels for fastening a cladding panel to a substrate, comprising means for attaching the fastener to the substrate, characterised in that the fastener is in the form of a one-piece clip and further comprises either at least one component for releasable engagement with the panel of the cladding system where the panel is in the top course of panels; at least one hook means for spring loaded engagement with the panel of the cladding system, where the panel is in the bottom course of panels or at least one first component for releasable engagement with a first panel of the cladding system and at least one hook means for spring loaded engagement with a second panel of the cladding system.
• a fastener for use in a cladding system for fastening a cladding panel to a substrate, comprising means for attaching the fastener to the substrate, characterised in that the fastener is in the form of a one-piece clip and further comprises at least one first component for releasable engagement with a first panel of the cladding system and at least one hook means for spring loaded engagement with a second panel of the cladding system.
• a fastener for use in a cladding system comprising at least one course of panels for fastening a cladding panel to a substrate in the top or bottom course of panels, comprising means for attaching the fastener to the substrate, characterised in that the fastener is in the form of a one-piece clip and further comprises either at least one component for releasable engagement with the panel of the cladding system where the panel is in the top course of panels or at least one hook means for spring loaded engagement with the panel of the cladding system, where the panel is in the bottom course of panels
• the at least one hook means is upwardly depending.
• a cladding system comprising a plurality of cladding panels and a plurality of fasteners for fastening the cladding panels to a substrate, in which each fastener comprises means for attaching the fastener to a substrate, characterised in that the fastener is in the form of a one-piece clip and further comprises either at least one component for releasable engagement with the panel of the cladding system where the panel is in the top course of panels; at least one hook means for spring loaded engagement with the panel of the cladding system, where the panel is in the bottom course of panels or at least one first component for releasable engagement with a first panel of the cladding system and at least one hook means for spring loaded engagement with a second panel of the cladding system, and in which system the first panel is adapted to be mounted on the substrate below the second panel.
• each panel comprises an upper edge portion and a lower edge portion, each having a recess; the at least one hook means of each fastener being adapted for releasable engagement with the recess in the lower edge portion of a panel, and the at least one second component of each fastener being adapted for releasable engagement with the recess in the upper edge portion of a panel.
• the fastener is preferably adapted for snap-fitting engagement with the second panel of the cladding system.
• the fastener is preferably made from metal such as aluminium or stainless steel, and may be powder or spray coated for protection.
• a cladding panel for use in a cladding system, which cladding panel comprises a front face, a rear face, two side faces, an upper edge portion and a lower edge portion, characterised in that the upper edge portion of the cladding panel comprises a recess adapted for releasable engagement with a first component of a fastener for fastening the panel to a substrate, and the lower edge portion of the cladding panel comprises a recess adapted for spring loaded engagement with a hook means of a fastener for fastening the panel to a substrate.
• Figure 1 is an isometric view from the front of part of an assembled rainscreen cladding system according to a preferred embodiment of the invention
• Figure 2 is an isometric view from the rear of the cladding system shown in Figure 1 ;
• Figure 3 is an isometric view of a bracket according to a preferred embodiment of the invention, as incorporated in the cladding system of Figures 1 and 2;
• Figure 4 is an isometric view of a section of a suspension rail according to a preferred embodiment of the invention, as incorporated in the cladding system of Figures 1 and 2;
• Figure 5 is a cross-sectional view of the suspension rail shown in Figure 4.
• Figure 6 is an isometric view of a cladding panel according to a preferred embodiment of the invention, as incorporated in the cladding system of Figure 1;
• Figure 7 is a cross-sectional view of the panel shown in Figure 6;
• Figure 8 view of is an enlarged cross-sectional view of the upper and lower end portions of the panel shown in Figure 6;
• FIG 9 is an isometric view of a clip-type fastener according to a preferred embodiment of the invention, as incorporated in the cladding system of Figures 1 and 2;
• Figure 10 is a cross-sectional view of the fastener shown in Figure 9;
• Figure 11 is a plan view of the fastener shown in Figure 9 and 10;
• Figure 12 is a side elevation of the cladding system of Figures 1 and 2;
• Figure 13 is a side elevation of an assembled rainscreen cladding system comprising a single course of panels according to a further preferred embodiment of the invention
• Figure 14 is an isometric view of a clip-type fastener according to a preferred embodiment of the invention, for use in fastening a cladding panel to the substrate in the top course of panels as incorporated in the cladding system of Figure 13;
• Figure 15 is a cross-sectional view of the fastener shown in Figure 14;
• Figure 16 is an isometric view of a clip-type fastener according to a preferred embodiment of the invention, for use in fastening a cladding panel to the substrate in the bottom course of panels as incorporated in the cladding system of Figure 13 and
• Figure 17 is a cross-sectional view of the fastener shown in Figure 16.
• a rainscreen cladding system according to a preferred embodiment of the invention is indicated generally at 10.
• the system includes a plurality of panels 12 secured to an array of vertically spaced, parallel suspension rails 14 by means of a plurality of fasteners 16.
• the suspension rails 14 are themselves secured on a pair of horizontally spaced support sections 18 by means of brackets 20, visible in Figure 2.
• the suspension rails 14 are bolted to the support sections 18 through the brackets 20. Pairs of holes 22 through which the bolts (not illustrated) pass are visible on the rear of the support sections 18 in Figure 2.
• a bracket 20 is shown more clearly in Figure 3.
• the bracket 20 consists of a body portion 22 having a front face 24 and a rear face 26, with upper and lower lip formations 28, 30 depending outwardly and upwardly from the front face 24, as viewed in Figure 3.
• the lip formations 28, 30 serve to define substantially U-shaped channels 32, 34 on the front face 24 of the bracket 20, which are configured for co-operative engagement with the suspension rails 14, as will be described in more detail below.
• Two holes 36 are provided in the body portion 22, arranged for corresponding alignment with the holes 22 in the support sections 18, for receiving the securing bolts.
• Each rail 14 is an elongate section having a main web portion 38 onto which the fasteners 16 in Figures 1 and 2 are positioned in use.
• the rail 14 also includes upper and lower arm portions 40, 42 extending along the length rail 14 from the rear of the main web portion 38.
• Each arm portion 40, 42 terminates in a downwardly depending lip 44, 46, provided for engagement in a respective channel 32, 34 on an associated bracket 20 in use, as will be described in more detail below.
• An upwardly depending lip 48 extends from the front of the main web portion 38 extending along the lower end of the rail 14, so as to define a channel 49 along the lower edge of the rail 14.
• the channel is provided for co-operative engagement with a portion of a fastener 16, as will be described in more detail below.
• a projection 50 extends upwardly from the main web portion 38 along the length of the rail 14, which is also provided for co-operative engagement with a portion of a fastener 16.
• the projection 50 includes three vertically spaced ribs 52 extending outwardly from the front of the rail 14.
• Each panel 12 has a front face 54, a rear face 56 and two sides faces 58. It can be seen that the rear face 56 of each panel 12 is formed having a plurality of ribbed formations 57, a preferred purpose of which will be described at the end of this description. Each panel 12 also includes an upper edge portion 60 and a lower edge portion 62, illustrated most clearly in Figure 8.
• the upper edge portion 60 of each panel 12 is formed as a step 64 having a groove 66 in its upper surface extending along the length of the step 64.
• the groove 66 is configured for receiving a portion of a fastener 16, as will be explained in more detail below.
• the step 64 also includes a riser face 68 formed at an angle to the vertical axis of the panel 12 as viewed in Figure 8.
• a portion of the upper surface of the step 64, between the riser face 68 and the groove 66 and indicated at 70 in Figure 8, is formed at an angle to a horizontal axis of the panel as viewed in Figure 8.
• the lower edge portion 62 of each panel 12 is formed with a recess 72, the rear wall of which defines a stop face 74.
• the stop face 74 forms part of a shoulder 76, which includes in an angled lead face 78.
• the recess 72 is provided for engagement with a portion of a fastener 16, as will be explained in more detail below.
• the panels 12 are substantially planar and are made, for example, of a ceramic material.
• the front face 54 of each panel 12 may be provided with a cambered profile or decorative or textured finish.
• each panel 12 is secured to the array of rails 14 by means of four fasteners 16, two of which are associated with the upper edge portion 60 of a panel 12 and two of which are associated with the lower edge portion 62 of a panel 12.
• the fastener 16 is in the form of an integral, one-piece clip.
• the fastener 16 has a rear region (indicated at 80 in Figure 10) adapted for snap fitting engagement with a rail 14 of the system 10 described above, and a front region (indicated at 82 in Figure 10) adapted for snap fitting engagement with at least one panel 12 of the system 10 described above.
• the fastener 16 is formed from two pieces of stainless steel, an upper portion and a lower portion, welded together by spot welds, indicated at 84 in Figure 11, which shows the upper portion of the fastener 16 in plan view.
• the upper portion of the fastener 16 is cut from a sheet of material to form a substantially rectangular work piece, which is itself cut to form a pair of outer regions 86 and a central region 88, visible clearly in Figure 11.
• the outer regions 86 are bent to transform the work piece in to a substantially U-shaped channel section, as will be apparent from a comparison of Figures 9 to 11, but with the end the central region 88, indicated at 90, bent in the opposite direction to form a hook 92.
• the U-shaped section is downwardly depending on the fastener 16, with the hook portion 92 depending upwardly. It will be seen that the upper portion of the fastener 16 defines a pair of downwardly depending walls at the front of the fastener 16, indicated at 94.
• front walls 94 are intended for engagement in the groove 66 formed in the upper edge portion 60 of a panel 12.
• the upper portion of the fastener also defines a downwardly depending wall extending across the rear of the fastener 16, indicated at 96 in Figures 9 and 10.
• the rear wall 96 defines a substantially U shaped and downwardly depending channel across the rear of the fastener 16, indicated at 97 in Figures 9 and 10.
• This channel 91 is intended for engagement with a portion of the projection 50 extending upwardly from the main web portion 34 of a rail 14, as described above. The in-use engagement of the channel 91 and front walls 94 will be described in more detail below.
• the hook 92 is intended to engage with the lower edge portion 62 of a panel 12, and acts as a latch portion of the fastener 16 for snap fitting latch-type engagement with the lower end portion of a panel 12, as will be described in more detail below.
• the lower portion of the fastener 16 is made from a work piece of material cut from a sheet of stainless steel.
• the work piece is formed into a bracket of substantially upturned L-shaped cross section, as can be seen from Figure 10.
• the lower end of the bracket is bent at two regions to provide a spring-biased lower end portion 98 which is configured for spring biased engagement with a portion of one of the rails 14 in the system 10 described above.
• the lower end portion 98 is intended for spring-biased engagement with the channel 49 formed by lip 48 along the lower end of the rails 14.
• the bracket also includes a cut portion 100 which is bent so as to extend from the rear of the bracket, as will be appreciated from Figures 9 and 10.
• the cut portion 100 is intended for spring-biased engagement with an upper region of the main web portion 34 of a rail 14, as will be described in more detail below.
• the bracket is further provided with a downwardly depending hook 102 which is cut and formed from the upper end of the bracket, as can be seen clearly from Figure 9.
• the hook 102 is positioned directly below the innermost section of the central region 88 of the upper portion of the fastener 16, as will be readily apparent from a comparison of Figure 9 to 10. Accordingly, the hook 102 provides a spring biased reinforcement to the inner end of the central region 88, for biasing the hook 92 on the upper portion of the fastener 16 in an upward direction in use.
• the support sections 18 are attached to an exterior wall (not shown) of a building in known manner, so as to be arranged substantially vertically and parallel to one another at a desired spacing, as shown in Figure 3.
• a plurality of brackets 20, in this case six brackets 20, are then secured to the support sections 18, using bolts (not shown) passing through holes 22 and 36 in the support sections 18 and brackets 20, respectively.
• brackets 20 With the brackets 20 secured in the positions shown in Figure 2, the lip formations 28, 30 are upwardly depending, as can be seen from Figure 12. hi this position, the horizontally aligned pairs of brackets 20 are each suitably arranged for receiving a section of rail 14. hi the part of the system 110 illustrated in Figures 1, 2 and 12, three rails 14 are used, indicated at 14', 14" and 14'" in Figure 12.
• each rail 14 an end of the section of rail 14 is slid into engagement with a first bracket 20, for example the left hand end bracket 20 viewed in Figure 2, such that the downwardly depending lips 44, 46 on each arm portion 40, 42 of the rail 14 is in sliding engagement with a respective channel 32, 34 on the front face 24 of the bracket 20.
• the section of rail 14 is then slid further to right as viewed in Figure 1 so as to engage the downwardly depending lips 44, 46 with a respective channel 32, 34 on the front face 24 of the bracket 20 second of the pair of horizontally aligned brackets 20.
• This procedure is carried out for each of the three rails 14 until they are arranged on the system 10 in the vertically spaced configuration shown in Figure 2.
• the vertical spacing between the rails 14 is predetermined dependent upon the dimensions of the panels 12 to be used in the system 10.
• a plurality of fasteners 16 is then attached to the suspensions rails 14. hi this preferred embodiment, two fasteners 16 are required per rail 14 for each panel 12 to be included in the assembled system 10. Hence, four fasteners 16 are preferably required for mounting each panel 12 to be included on the assembled system 10. However, it is also possible to secure a panel 12 in any given area of cladding using only two fasteners 16, one on each associated rail 14.
• the fasteners 16 are attached by positioning the U-shaped channel 97 over a section of the projection 50 on an associated rail 14, with the lower end portion 98 of the fastener 16 engaged in the upwardly depending channel 49 formed on the lower end of the main web portion 38 of the rail 14.
• the width of the channel 97 and the width of the projection 50 are co-operatively configured so as to frictionally engage with one another.
• each fastener 16 is spring-biased in to engagement with an associated portion of rail 14, by virtue of the spring-biased nature of the lower end portion 98 and the contact between the spring -biased cut portion 100 of the fastener 16 with an upper part of the main web portion 38 of the associated rail 14.
• the fasteners 16 are spring biased into frictional engagement with their associated rail 14 so as to be securely positioned on the rail 14.
• the panel 12 is positioned relative to the two respective fasteners 16 mounted on the uppermost rail 14', with the groove 66 in the upper end portion 60 of the panel 12 positioned directly below the front walls 94 of the fasteners 16, but with the panel angled slightly to the vertical, as viewed in Figure 12, i.e. with the bottom end of the panel 12 further away from the exterior wall to which the system
• the lower end of the panel 12 is rotated in the direction of the plane of the vertically adjacent rails 14' and 14", about a pivot point formed by the engagement between the fasteners 16 and the groove 66.
• the lead face 78 of the lower edge portion 62 of the panel 12 is thereby brought into contact with the latch portions 92 of the respective fasteners 16 on the lower rail 14".
• Rotation of the panel d is continued, against the spring pressure of the latch portions 92, until the shoulder 76 of the lower portion 62 of the panel 12 passes over the distal end of the latch portions 92, so that the distal end of the latch portions 92 are brought into snap- fitting, spring-loaded engagement with the stop face 74 of the recess 72 in the lower edge portion 62 of the panel 12.
• the panel 12 is thus secured between the two vertically adjacent suspension rails 14' and 14". Further panels 12 can be mounted and secured in the same manner as required.
• An advantage of the system is that panels can be mounted onto the support rails either in isolation or by progressing horizontally from left to right or right to left, and also vertically and/or diagonally, in both directions if required.
• suspension rails 14 are shown in Figures 1, 2 and 12 as being spaced in a generally vertical plane, to provide a vertically hung exterior cladding effect, it will be appreciated that the panels, fasteners and cladding system can be used at any desired orientation, for example on an incline to the vertical, or with the support sections and rails oriented at 90 degrees to the orientation of the array illustrated in Figures 1 and 2.
• the lowermost rail 14 is provided with a modified form of fastener, indicated at 110, which is specially adapted for securing the lowermost panels 12 of an array, such as the lowermost panels shown in Figures 1, 2 and 12.
• the modified fasteners 110 include an upper channel having a cross- section corresponding substantially to channel 97 on fasteners 16, in that it is configured for frictional engagement with the upper projection 50 on a rail 14.
• the modified fasteners 110 do not include portions adapted to engage or co-operate with engagement of an upper panel 12. In this respect, the spacing required between the lower two rails 14' ' and 14" is less than the spacing between the upper two rails 14' and 14".
• the upper portions of the fasteners 16 which are intended to engage with the lower end portion of an upper panel 12 are in fact incorporated in the lower end portion of the modified fasteners 110, as can be seen clearly in Figure 12, for engagement with the underside of the lowermost panel 12.
• the modified fasteners 110 are mounted on rails 14'" in much the same manner as fasteners 16 described above.
• the latch-type snap fitting engagement between modified fasteners 110 and the lower end portions 62 of the lowermost panels 12 is substantially the same as that described above with respect to hook portions 92 on the fasteners 16, as will be readily apparent to the skilled reader.
• the system 10 also incorporates a third vertical member, indicated at 120, arranged halfway between the two support sections 18.
• vertical member 120 is a preferred feature of the system 10 and is provided as an anti-rattle means between the panels 12 and the rails 14.
• the anti-rattle member 120 is intended to clip onto the rails 14 in the manner indicated at 122 in Figure 1 and to be positioned between intended position of adjacent sets of vertically aligned panels 12.
• the anti-rattle member 120 includes forwardly directed projections, indicated at 124 in Figure 1, which are configured to engage in the ribbed formations 57 provided on the rear face 56 of the panels 12 (as illustrated most clearly in Figures 6 and 7). In use, the anti-rattle member 120 provides stability within the system 10 and acts to reduce rattle between the panels 12 and the rails 14, such as might otherwise be caused by wind.
• a rainscreen cladding system according to a preferred embodiment of the invention is indicated generally at 10.
• the system includes a plurality of panels 12 secured to an array of vertically spaced, parallel suspension rails 14 by means of a plurality of fasteners 120, 110.
• the suspension rails 14 are themselves secured on a pair of horizontally spaced support sections 18 by means of brackets 20.
• the suspension rails 14 are bolted to the support sections 18 through the brackets 20.
• each panel 12 is secured to the array of rails 14 bymeans of four fasteners 120, 110, two of which 120 are associated with the upper edge portion 60 of a panel 12 and two of which 110 are associated with the lower edge portion 62 of a panel 12.
• the fastener 120 is in the form of an integral, one-piece clip.
• the fastener 120 has a rear region (indicated at 280 in Figures 14 and 15) adapted for snap fitting engagement with a rail 14 of the system 10 described above, and a front region (indicated at 282 in Figures 14 and 15) adapted for snap fitting engagement with at least one panel 12 of the system 10 described above.
• the fastener 120 is formed from two pieces of stainless steel, an upper portion and a lower portion, welded together by spot welds.
• the upper portion of the fastener 120 is cut from a sheet of material to form a substantially rectangular work piece, which is itself cut to form a pair of outer regions 286, visible clearly in Figures 14 and 15.
• the outer regions 286 are bent to transform the work piece in to a substantially U-shaped channel section, as will be apparent from a comparison of Figures 2 and 3.
• the U-shaped section is downwardly depending on the fastener 120.
• the upper portion of the fastener 120 defines a pair of downwardly depending walls at the front of the fastener 120, indicated at 294. These front walls 294 are intended for engagement in the groove 66 formed in the upper edge portion 60 of a panel 12.
• the upper portion of the fastener also defines a downwardly depending wall extending across the rear of the fastener 120, indicated at 296 in Figures 14 and 15.
• the rear wall 296 defines a substantially U shaped and downwardly depending channel across the rear of the fastener 120, indicated at 297 in Figures 14 and 15. This channel 297 is intended for engagement with a portion of the projection 50 extending upwardly from the main web portion 34 of a rail 14, as described above.
• the lower portion of the fastener 120 is made from a work piece of material cut from a sheet of stainless steel.
• the work piece is formed into a bracket of substantially upturned L-shaped cross section, as can be seen from Figures 14 and 15.
• the lower end of the bracket is bent at two regions to provide a spring-biased lower end portion 298 which is configured for spring biased engagement with a portion of one of the rails 14 in the system 10 described above, hi particular, the lower end portion 298 is intended for spring-biased engagement with the channel 49 formed by lip 48 along the lower end of the rails 14.
• the bracket also includes a cut portion 200 which is bent so as to extend from the rear of the bracket, as will be appreciated from Figures 14 and 15.
• the cut portion 200 is intended for spring-biased engagement with an upper region of the main web portion 34 of a rail 14.
• the bracket is further provided with a downwardly depending hook 202 which is cut and formed from the upper end of the bracket, as can be seen clearly from Figures 14 and 15.
• the hook 202 is positioned directly below the innermost section of the central region of the upper portion of the fastener 120, as will be readily apparent from a comparison of Figures 14 and 15.
• the fastener 110 is in the form of an integral, one-piece clip.
• the fastener 110 has a rear region (indicated at 480 in Figures 16 and 17) adapted for snap fitting engagement with a rail 14 of the system 10 described above, and a front region (indicated at 482 in Figures 16 and 17) adapted for snap fitting engagement with at least one panel 12 of the system 10 described above.
• the fastener 110 is formed from two pieces of stainless steel, an upper portion and a lower portion, welded together by spot welds.
• the lower portion of the fastener 110 is cut from a sheet of material to form a substantially rectangular work piece, which is itself cut to form a pair of outer regions 486 and a central region 488, visible clearly in Figures 16 and 17.
• the work piece is bent to form the work piece into a bracket of substantially L-shaped cross section, as will be apparent from a comparison of Figures 4 and 5, but with the end of the central region 488, indicated at 490, bent upwards to form a hook 492.
• the upper portion of the fastener 110 defines a downwardly depending wall extending across the rear of the fastener 110, indicated at 496 in Figures 16 and 17.
• the rear wall 496 defines a substantially U shaped and downwardly depending channel across the rear of the fastener 110, indicated at 497 in Figures 16 and 17. This channel 497 is intended for engagement with a portion of the projection 50 extending upwardly from the main web portion 34 of a rail 14, as described above.
• the bracket also includes a cut portion 400 which is bent so as to extend from the rear of the bracket, as will be appreciated from Figures 16 and 17.
• the cut portion 400 is intended for spring-biased engagement with an upper region of the main web portion 34 of a rail 14.

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• 2005
  • 2005-12-16 EP EP05819189A patent/EP1831480A1/de not_active Withdrawn
  • 2005-12-16 WO PCT/GB2005/004894 patent/WO2006064268A1/en active Application Filing

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