EP3222790B1 - A wall tie, a wall comprising such a wall tie and a method for constructing a wall - Google Patents
A wall tie, a wall comprising such a wall tie and a method for constructing a wall Download PDFInfo
- Publication number
- EP3222790B1 EP3222790B1 EP16162036.4A EP16162036A EP3222790B1 EP 3222790 B1 EP3222790 B1 EP 3222790B1 EP 16162036 A EP16162036 A EP 16162036A EP 3222790 B1 EP3222790 B1 EP 3222790B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- wall tie
- projection
- eye
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 16
- 239000004567 concrete Substances 0.000 description 10
- 238000009413 insulation Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- -1 haydite Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4178—Masonry wall ties
- E04B1/4185—Masonry wall ties for cavity walls with both wall leaves made of masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4178—Masonry wall ties
Definitions
- the present invention relates to a wall tie. More specifically the present invention relates to a wall tie for connecting an exterior wall to an interior wall in a wall structure, such as a cavity wall.
- Cavity walls are wall structures, wherein the exterior wall is arranged with a gap to the interior wall forming a cavity between the inner wall and the exterior wall.
- the inner wall can be any type of wall, such as a masonry wall, e.g. comprising masonry building blocks, bricks, expanded clay, haydite, concrete or similar, or a wall comprising boards, studs, wood, gypsum and similar materials, wherein the exterior wall is a masonry wall.
- the exterior wall comprises building blocks, such as masonry building blocks including concrete, expanded clay, haydite or similar.
- the cavity between the interior wall and the exterior wall can be provided with insulation materials.
- Wall ties are fastened to the interior wall and the exterior wall and are arranged to extend through the cavity for stabilising the exterior wall by connecting it to the interior wall.
- the wall tie is used to tie the internal and exterior walls, also called leaves or skins, together.
- Wall ties are connected to the interior wall and the exterior wall during construction and spans the cavity between the interior wall and the exterior wall.
- the present invention also relates to a wall comprising such wall ties.
- the present invention also relates to a method for constructing a wall.
- a plurality of different types of wall ties is disclosed in the prior art.
- One type of such prior art wall ties for connecting an exterior wall to an interior wall comprises an inner component for fastening to the interior wall and an outer component to be embedded in a mortar joint of the exterior wall.
- the outer component is connectable to the inner component.
- GB 2318597 A discloses a wall tie for accommodating vertical and horizontal movement of leaves of a wall, comprising a first part with a dowel portion engaging elongate slots in a second part of the wall tie. This document discloses the features of the preamble of claim 1.
- GB 2196664 A discloses a wall tie having flanges with vertically elongate apertures in which a horizontal bar is keyed to prevent rotation, wherein a tie member is slideably mounted on said bar to allow horizontal and vertical movement.
- One object of the present invention is to provide a wall tie that result in a strong connection and is easy to mount while, according to some embodiments, being flexible and adaptable to the current circumstances.
- the present invention relates to a wall tie for connecting an interior wall to an exterior wall, comprising a first wall tie part for fastening in one of the interior wall and the exterior wall, and a second wall tie part for fastening in the other one of the interior wall and the exterior wall, wherein the first wall tie part is connectable to the second wall tie part, wherein the first wall tie part comprises a first anchor portion and an eye, that the second wall tie part comprises a second anchor portion, a connecting portion, a first projection and a second projection connected to the first projection through the connecting portion, the first and second projections being spaced apart, wherein the first projection is provided with a first through aperture, and wherein the second projection is provided with a second through aperture, that the eye is insertable between the first projection and the second projection, and that the wall tie includes a pin for insertion into the first aperture, the eye and the second aperture to connect the first wall tie part to the second wall tie part, characterised in that the first and second apertures and the eye are arranged for receiving the pin in a snug
- the structure of the second wall tie part with the spaced apart projections and the pin connecting the first and second wall tie parts through the projections result in a strong connection being able to distribute loads between the first and second wall tie parts through both the first and second projections.
- a wall tie is provided with improved strength when it comes to vertical forces on the first anchor portion or the second anchor portion.
- the first and second apertures and the eye are arranged for receiving the pin in a relatively snug fit, wherein the pin engages the first and second wall tie parts all the time or by a minor movement of any of the first and second wall tie parts.
- the wall tie can be arranged in three separate pieces, i.e. the first wall tie part, the second wall tie part and the pin, that are assembled prior to construction of the interior wall or after construction of the interior wall. Hence, the wall tie can be assembled before or during erection of the exterior wall.
- the pin can be arranged with a circular cross section, so that the first and second wall tie parts are rotatable in relation to each other around the pin.
- the eye and/or the apertures can be formed with circular cross section so that the second wall tie part is rotatable around a longitudinal axis of the pin.
- the wall tie can be fastened to the internal wall and assembled, wherein the second wall tie part can be pivoted around the longitudinal axis of the pin to move it out of the way during positioning of one or more building block or one or more layers building blocks of the exterior wall. Then, the second wall tie part can be turned out into its wall attachment position so that the second anchor portion can be tied into a joint of the exterior wall.
- the wall tie can be assembled and fastened to the interior wall prior to erection of the exterior wall and then connected to the exterior wall during erections of the exterior wall.
- the wall tie can be assembled when required during erection of the exterior wall.
- the pin can be arranged with a regular cross section or diameter, so that the pin easily can run through the eye.
- the second wall tie part is adjustable in height before the second anchor portion has been engaged to the wall or tied into the joint, so that the second anchor portion can be aligned with the top surface of a building block and with the joint in which it is to be received.
- a distance between the first projection and the second projection is 10-100 mm, wherein the second wall tie part is height adjustable a corresponding distance.
- the second anchor portion can be flat for a favourable fit in the joint.
- the wall tie can be used also for masonry exterior walls having thin bed mortar joints.
- a wall comprising the wall tie of the present invention, wherein the wall comprises an interior wall and an exterior wall being spaced apart to form a gap between them, wherein the first anchor is fastened to the interior wall and the eye projects from the interior wall, wherein the second anchor is embedded in a masonry joint of the exterior wall so that the first and second projections projects from the exterior wall towards the interior wall, wherein the eye is received between the first and second projections, and wherein the pin extends through the first aperture, the eye and the second aperture to connect the first and second wall tie parts.
- a wall tie 10 connected to an interior wall 11 and engaging an exterior wall 12 in a cavity wall structure under construction is illustrated according to one embodiment.
- the wall tie 10 is arranged to stabilise the exterior wall 12 by connecting it to the interior wall 11.
- the wall tie 10 is arranged to extend across a cavity 13 between the interior wall 11 and the exterior wall 12.
- the wall tie 10 is a cavity wall tie.
- the interior wall 11 is any type of wall, such as a wall comprising studs and boards, wood, gypsum, composite materials, etc.
- the interior wall 11 is a masonry wall, e.g. including concrete, expanded clay, light ballast concrete, haydite or similar materials.
- the exterior wall 12 is a masonry wall, e.g. of building blocks 14 including concrete, expanded clay, haydite material or other types of masonry building blocks.
- the building blocks 14 are light ballast concrete blocks.
- the exterior wall 12 comprises joints 15 between the building blocks 14, such as bed joints, in which a part of the wall tie 10 is arranged to be embedded.
- the exterior wall 12 also comprises insulation (not illustrated).
- the cavity wall is a conventional cavity wall.
- the wall tie 10 is arranged to be tied into the mortar or cementitious material or similar type of material in the joints 15 of the exterior wall 12.
- the joints 15 are thin bed mortar joints.
- the wall tie 10 is arranged in stainless steel, composite materials, plastic materials or other corrosion resistant materials.
- the wall tie 10 comprises a first wall tie part 16 and a second wall tie part 17.
- the first wall tie part 16 is arranged for fastening to the interior wall 11, wherein the second wall tie part 17 is arranged for fastening to the exterior wall 12.
- the first wall tie part 16 is connectable to the second wall tie part 17 by means of a pin 18.
- the first wall tie part 16 comprises an anchor portion, denoted first anchor portion 19 in this disclosure, and an eye 20 connected to the first anchor portion 19.
- the first anchor portion 19 is arranged to be fastened to the interior wall 11.
- the first anchor portion 19 can be designed in a plurality of different ways for fastening to different types of interior walls 11, which is described in more detail below.
- the eye 20 is, e.g. arranged in one end of the first anchor portion 19, wherein the opposite end of the first anchor portion 19 is arranged for attachment to the interior wall 11.
- the eye 20 is arranged for receiving the pin 18, so that the pin 18 extends through the eye 20.
- the anchor portion 19 is arranged for fastening to the interior wall 11 and for partially extending through the cavity 13, so that the eye is projecting from the interior wall 11 and is spaced from the interior wall 11.
- the second wall tie part 17 comprises an anchor portion, denoted second anchor portion 21 in this disclosure.
- the second wall tie part 17 further comprises a connecting portion 22, a first projection 23 and a second projection 24.
- the second anchor portion 21 is arranged to be tied into the joint 15 of the exterior wall 12.
- the second anchor portion 21 extends from the connecting portion 22 to be able to extend into the joint 15, while the connecting portion 22 is arranged outside the joint 15 and the exterior wall 12 in the cavity 13.
- the second anchor portion 21 comprises a slanted end portion 25, e.g. to be received in a central channel 26 of the building block 14, so that the second anchor portion 21 extends into the joint 15 and is terminated with the slanted end portion 25 in the central channel 26 of the building block 14.
- the slanted end portion 25 is arranged to be slanted downwards when mounted in the exterior wall 12.
- the second anchor portion 21 is flat and, e.g. formed in plate steel.
- the connecting portion 22 and optionally also the first and second projections 23, 24 are formed in plate steel.
- the second anchor portion 21 is connected to the first projection 23 and the second projection 24 through the connecting portion 22. Further, the first projection 23 is connected to the second projection 24 through the connecting portion 22. The first and second projections 23, 24 extend from the connecting portion 22 to form a gap between them, wherein the first and second projections 23, 24 are spaced apart.
- the second anchor portion 21 is connected to a central part of the connecting portion 22 and extends from it. For example, at least a part of the second anchor portion 21 extends perpendicular from the connecting portion 22.
- the connecting portion 22 When connected to the exterior wall 12 the connecting portion 22 extends in a vertical direction upwards and downwards from the second anchor portion 21.
- the connecting portion 22 and at least a part of the second anchor portion 21 form a T-shape.
- first and second projections 23, 24 extend from opposite ends of the connecting portion 22.
- the first and second projections 23, 24 extend perpendicular from the connecting portion 22, wherein the connecting portion 22 and the first and second projections 23, 24 substantially form a U-shape.
- the first and second projections 23, 24 extend in parallel to each other and optionally also in parallel to a part of the second anchor portion 21.
- the first and second projections 23, 24 extend horizontally, wherein the connecting portion 22 extends in the vertical direction.
- the first and second projections 23, 24 are inclined in relation to the connecting portion 22, e.g.
- first and second projections 23, 24 are inclined upwards and downwards, respectively, so that free ends of the first and second projections 23, 24 are arranged further apart than their opposite ends which are connected to the connecting portion 22.
- a distance X between the first and second projections 23, 24 is 10-100 mm.
- the pin 18 is arranged to connect the first wall tie part 16 and the second wall tie part 17.
- the pin 18 comprises a head 27 for engaging the first projection 23, i.e. a top surface of the first projection when the wall tie 10 is mounted, so that the pin 27 is held in place by gravity.
- the pin 18 is provided with a conical portion or a flange or similar for engaging the top surface of the first projection.
- the first projection 23 is provided with a first aperture 28, and the second projection 24 is provided with a second aperture 29.
- the first aperture 28 is arranged through the first projection 23 and is arranged for receiving the pin 18, so that the pin extends through the first aperture 28 and a part of the pin 18 is arranged inside the first aperture 28 when the first wall tie part 16 is connected to the second wall tie part 17.
- the second aperture 29 is arranged through the second projection 24 and is arranged for receiving the pin 18, so that the pin 18 extends through the second aperture 29 and a part of the pin 18 is arranged inside the second aperture 29 when the first wall tie part 16 is connected to the second wall tie part 17.
- the first and second apertures 28, 29 are aligned so that the pin 18 can be introduced into the first and second apertures 28, 29.
- the pin 18 has a straight centre axis Y, wherein the first and second apertures 28, 29 e.g. are aligned axially.
- the axis Y extends substantially vertically.
- the eye 20 is adapted to be arranged between the first and second projections 23, 24, so that the eye 20 is aligned with the first and second apertures 28, 29 and the pin 18 can be inserted through the first aperture 28, the eye 20 and the second aperture 29 to connect the first wall tie part 16 to the second wall tie part 17.
- the shape and dimensions of the eye 20 and the apertures 28, 29 are adapted for receiving the pin 18.
- the cross section of the pin 18 is constant in shape and dimension along the axis Y, wherein the second wall tie part 17 is movable along the pin 18 and along the centre axis Y of the pin 18, which is illustrated by means of the arrow A in Fig. 4 , before the second wall tie part 17 has been tied to the exterior wall 12.
- the second wall tie part 17 is adjustable in the vertical direction before the second anchor portion 21 has been engaged with or fastened to the exterior wall 12, wherein the second wall tie part 17 is adjustable in height in relation to the building blocks 14 so that the second anchor portion 21 can be adapted to the position of the joint 15 in which it is to be arranged.
- the pin 18 is arranged to prevent the first and second wall tie parts 16, 17 from being pulled apart and also prevents the first and second wall tie parts 16, 17 from being pushed together when the wall tie 10 is mounted and attached to the interior wall 1 and the exterior wall 12.
- the first and second apertures 28, 29 and the eye 20 are arranged for receiving the pin 18 in a relatively snug fit, so that any forces applied to the first and/or second wall tie parts 16, 17, such as the first and/or second anchor portions 19, 21, in the vertical direction or in a direction parallel to the centre axis Y is received by the pin 18 and distributed to both the first and second projections 23, 24.
- the second wall tie part 17 is rotatable around the pin 18, which is illustrated by means of the arrow B in Fig. 4 .
- the pin 18 and/or the apertures 28, 29 is/are formed with a circular cross section, wherein the second wall tie part 17 is pivotable around the centre axis Y.
- the wall tie 10 is arranged for connecting the interior wall 11 in the form of a masonry wall of building blocks 14 to an exterior wall comprising building blocks 14.
- the building blocks 14 of the exterior wall 12 and the interior wall 11 are similar and are, e.g. building blocks 14 comprising haydite, concrete or similar, optionally with an insulation layer, reinforcement, etc.
- the building blocks 14 are conventional building blocks.
- the exterior wall 12 is a masonry wall comprising the building blocks 14, wherein the interior wall 11 is a wall comprising different layers, such as an outer board 30, an insulation layer 31 and an inner board 32.
- the outer and inner boards 30, 32 are, e.g. fastened to studs (not illustrated) in a conventional manner, wherein the insulation layer 31 is arranged between the studs.
- the outer board 30 and the inner board 32 are, e.g. a gypsym wallboard, a wood chip panel, a cementitious board, a composite board or any suitable type of board for wall construction.
- the first anchor portion 19 is formed with an angle portion 33 for engaging and attachment to the surface of the interior wall 11, e.g. by means of conventional fastening means, such as a screw or a nail, running through a hole in the first anchor portion 19.
- the first anchor portion 19 is embedded in the interior wall 11.
- the interior wall 11 comprises wood, gypsum, studs, insulation or other suitable construction materials.
- the interior wall comprises an outer windshield layer or vapour barrier 35, the outer board 30, the insulation layer 31 and the inner board 32.
- the first anchor portion 19 is arranged with external threads 34 to be screwed into the interior wall 11, wherein the threads 34 are brought to engage the interior wall for fastening thereto.
- the exterior wall 12 in Fig. 8 is a brick wall.
- the different types of interior walls 11 and exterior walls 12 of Figs. 6-8 can be combined in any way.
- the first wall tie part 16 is illustrated according to different embodiment for fastening to different types of interior walls 11.
- the first wall tie part 16 comprises the eye 20 and the first anchor portion 19.
- the first anchor portion 19 comprises a bar, such as a straight bar as illustrated in Fig. 9 , to be embedded in the interior wall 11.
- the first anchor portion 19 is formed as a flat plate element, optionally provided with one or more slanted portions 36, which is illustrated in Fig. 10 .
- the first anchor portion 19 is connected to the eye 19 through an intermediate portion 37, wherein the first anchor portion 19 is thin and flat.
- FIG. 8 illustrates the first wall tie portion 16 as described with reference to Fig. 8 , wherein the first anchor portion 19 is provided with the external threads 34, so that the first wall tie part is formed as a screw with the eye 20.
- the first wall tie part 16 is formed with the non-threaded intermediate portion 37 and the first anchor portion is formed with a light concrete thread 38, e.g. of plastic materials, for screwing into the interior wall 11 in the form of haydite, light concrete or similar.
- Fig. 14 illustrates the first wall tie part 16 as described with reference to Fig. 7 , i.e. with the angle portion 33 for engaging the interior wall 11 and the hole or an additional eye 39 for fastening to the surface of the interior wall 11.
- Fig. 7 illustrates the first wall tie part 16 as described with reference to Fig. 7 , i.e. with the angle portion 33 for engaging the interior wall 11 and the hole or an additional eye 39 for fastening to the surface of the interior wall 11.
- the first anchor portion 19 is provided with protrusions 40 for securing the first anchor portion in a mortar joint, concrete wall material or similar hardening construction material, wherein the first anchor portion 19 is arranged in the hardening material before it hardens.
- the protrusions 40 extend perpendicular to a longitudinal direction of the anchor portion 19, wherein the protrusions 40 are arranged on top and bottom surfaces of the first anchor portion 19 to extend vertically when the first wall tie part 16 has been mounted in the interior wall 11.
- Figs. 16-20 illustrate the wall tie 10 according to different embodiments.
- the first anchor portion 19 is arranged as a flat plate with the slanted end portion 25 similar to the second anchor portion 21.
- the first and second anchor portions 19, 21 in Fig. 16 are suitable for attachment to masonry walls.
- the first and second anchor portions 19, 21 are formed with a plurality of small holes 41 for engaging a hardening material.
- the first and second anchor portions 19, 21 in Fig. 17 are suitable for attachment to masonry walls.
- the first anchor portion 19 is formed with the threads 34, wherein the second anchor portion 21 is formed as a flat plate with a few larger holes 41.
- the first anchor portion 19 is arranged for attachment to a non-masonry wall or a masonry wall.
- the first anchor portion 19 is formed with bends 42 to further secure the first anchor portion 19 in a hardening material and prevent the first anchor portion 19 from being displaced in a direction perpendicular to the plane of the interior wall 11.
- the second anchor portion 21 is provided with grooves 43 for engaging the material of the joint 15 and thereby prevent displacement in a direction perpendicular to the plane of the exterior wall 12.
- the first anchor portion 19 is formed with an eye, e.g. by wire material, to tie the first anchor portion 19 to a hardening material of the interior wall 11.
- the first wall tie part 16 is fastened to the interior wall 11.
- the first anchor portion 19 is attached to the interior wall 11.
- the interior wall 11 comprises the outer board 30, the insulation 31 and the inner board 32 but the interior wall 11 can be any type of wall.
- the first anchor portion 19 comprises the angle portion 33, wherein the first anchor portion 19 is attached to the surface of the interior wall 11 by means of conventional fastening means 44, such as a screw.
- the first anchor portion 19 is arranged to be embedded in the interior wall 11.
- the first anchor portion 19, or at least a part thereof, projects from the interior wall 11, such as perpendicular therefrom, so that the eye 20 projects from the interior wall 11 and, e.g. is spaced from the outer surface of the interior wall 11.
- the first and second projections 23, 24 of the second wall tie part 17 are brought to enclose upper and lower sides of the eye 20, so that the eye 20 is arranged between the first and second projections 23, 24 and are aligned with the first and second apertures 28, 29, which is illustrated in Fig. 22 .
- the first projection 23 is arranged above the eye 20, wherein the second projection 24 is arranged below the eye 20.
- the pin 18 is inserted into the first aperture 28 and further through the eye 20 and through the second aperture 29, which is illustrated by means of the arrow C in Fig. 22 .
- the pin 18 is inserted from above until the head 27 engages the first projection 23 and the pin 18 locks the second wall tie part 17 to the first wall tie part 16, which is illustrated in Fig. 23 .
- the pin 18 is inserted vertically into the apertures 28, 29 and the eye 20.
- the second wall tie part 17 is connected to the first wall tie part 16 through the pin 18, wherein the second wall tie part 17 is pivotable around the pin 18 and is vertically adjustable along the pin 18 between the first and second projections 23, 24.
- the second wall tie part 17 is adjustable along the pin 18 until one of the projections 23, 24 engages the eye 20.
- the second wall tie portion and the pin 18 are hanging in the eye 20 of the first wall tie portion 16.
- the second wall tie part 17 is in its lowermost position.
- the second wall tie part 17 is rotated around the pin 18, which is illustrated by means of the arrow D in Fig. 24 to move the second wall tie portion out of the way during erection of the exterior wall 12 or a part thereof.
- the second wall tie portion 17 is rotated to a position in which the second anchor portion 21 is arranged substantially in parallel to the interior wall 11 or is inclined towards the interior wall 11, so that the free end of the second anchor portion 21 is closer to the interior wall 11 than the opposite end thereof, which opposite end is connected to the connecting portion 22.
- the second anchor portion 21 is turned away, clockwise or counter-clockwise around the pin 18, from the area in which the exterior wall 12 is to be erected, so as not to obstruct arrangement of a layer of building blocks 24 at a height corresponding to the position of the wall tie 10.
- the second wall tie part 17 is displaced along the pin 18 to suitable height and pivoted around the pin 18 so that the second anchor portion 21 extends substantially perpendicular to the inner surface of the exterior wall 12 and substantially in a plane of the top surface of the building block 14 so as to be embedded in a joint 15 between the building block 14 and a building block to be arranged on top of said building block 14.
- the second anchor portion 21 is tied into the joint 15 and is fixed therein when the hardening material of the joint 15 solidifies.
- the wall tie 10 has been tied into the exterior wall 12 it is fixed and secures the exterior wall 12 to the interior wall 11. Any load in vertical direction on any of the first anchor portion 19 and the second anchor portion 21 is distributed between said anchor portions 19, 21 through the pin 18 and the first and second projections 23, 24.
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- Joining Of Building Structures In Genera (AREA)
Description
- The present invention relates to a wall tie. More specifically the present invention relates to a wall tie for connecting an exterior wall to an interior wall in a wall structure, such as a cavity wall. Cavity walls are wall structures, wherein the exterior wall is arranged with a gap to the interior wall forming a cavity between the inner wall and the exterior wall. The inner wall can be any type of wall, such as a masonry wall, e.g. comprising masonry building blocks, bricks, expanded clay, haydite, concrete or similar, or a wall comprising boards, studs, wood, gypsum and similar materials, wherein the exterior wall is a masonry wall. For example, the exterior wall comprises building blocks, such as masonry building blocks including concrete, expanded clay, haydite or similar. The cavity between the interior wall and the exterior wall can be provided with insulation materials. Wall ties are fastened to the interior wall and the exterior wall and are arranged to extend through the cavity for stabilising the exterior wall by connecting it to the interior wall. Hence, the wall tie is used to tie the internal and exterior walls, also called leaves or skins, together. Wall ties are connected to the interior wall and the exterior wall during construction and spans the cavity between the interior wall and the exterior wall. The present invention also relates to a wall comprising such wall ties. The present invention also relates to a method for constructing a wall.
- A plurality of different types of wall ties is disclosed in the prior art. One type of such prior art wall ties for connecting an exterior wall to an interior wall comprises an inner component for fastening to the interior wall and an outer component to be embedded in a mortar joint of the exterior wall. The outer component is connectable to the inner component.
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GB 2318597 A GB 2196664 A - Even though a plurality of prior art wall ties is known there is a need to provide a wall tie with improved stability.
- Hence, one problem of such prior art wall ties is that the stability can be deficient.
- Another problem of some types of prior art wall ties is that they can be difficult to use and that the range of application can be limited.
- One object of the present invention is to provide a wall tie that result in a strong connection and is easy to mount while, according to some embodiments, being flexible and adaptable to the current circumstances.
- The present invention relates to a wall tie for connecting an interior wall to an exterior wall, comprising a first wall tie part for fastening in one of the interior wall and the exterior wall, and a second wall tie part for fastening in the other one of the interior wall and the exterior wall, wherein the first wall tie part is connectable to the second wall tie part, wherein the first wall tie part comprises a first anchor portion and an eye, that the second wall tie part comprises a second anchor portion, a connecting portion, a first projection and a second projection connected to the first projection through the connecting portion, the first and second projections being spaced apart, wherein the first projection is provided with a first through aperture, and wherein the second projection is provided with a second through aperture, that the eye is insertable between the first projection and the second projection, and that the wall tie includes a pin for insertion into the first aperture, the eye and the second aperture to connect the first wall tie part to the second wall tie part, characterised in that the first and second apertures and the eye are arranged for receiving the pin in a snug fit. The structure of the second wall tie part with the spaced apart projections and the pin connecting the first and second wall tie parts through the projections result in a strong connection being able to distribute loads between the first and second wall tie parts through both the first and second projections. Hence, a wall tie is provided with improved strength when it comes to vertical forces on the first anchor portion or the second anchor portion. To further improve the possibilities of load distribution the first and second apertures and the eye are arranged for receiving the pin in a relatively snug fit, wherein the pin engages the first and second wall tie parts all the time or by a minor movement of any of the first and second wall tie parts. The wall tie can be arranged in three separate pieces, i.e. the first wall tie part, the second wall tie part and the pin, that are assembled prior to construction of the interior wall or after construction of the interior wall. Hence, the wall tie can be assembled before or during erection of the exterior wall.
- The pin can be arranged with a circular cross section, so that the first and second wall tie parts are rotatable in relation to each other around the pin. Alternatively, the eye and/or the apertures can be formed with circular cross section so that the second wall tie part is rotatable around a longitudinal axis of the pin. Hence, the wall tie can be fastened to the internal wall and assembled, wherein the second wall tie part can be pivoted around the longitudinal axis of the pin to move it out of the way during positioning of one or more building block or one or more layers building blocks of the exterior wall. Then, the second wall tie part can be turned out into its wall attachment position so that the second anchor portion can be tied into a joint of the exterior wall. Consequently, the wall tie can be assembled and fastened to the interior wall prior to erection of the exterior wall and then connected to the exterior wall during erections of the exterior wall. Alternatively, the wall tie can be assembled when required during erection of the exterior wall.
- The pin can be arranged with a regular cross section or diameter, so that the pin easily can run through the eye. Hence, the second wall tie part is adjustable in height before the second anchor portion has been engaged to the wall or tied into the joint, so that the second anchor portion can be aligned with the top surface of a building block and with the joint in which it is to be received. For example, a distance between the first projection and the second projection is 10-100 mm, wherein the second wall tie part is height adjustable a corresponding distance.
- The second anchor portion can be flat for a favourable fit in the joint. Hence, the wall tie can be used also for masonry exterior walls having thin bed mortar joints.
- Disclosed is also a wall comprising the wall tie of the present invention, wherein the wall comprises an interior wall and an exterior wall being spaced apart to form a gap between them, wherein the first anchor is fastened to the interior wall and the eye projects from the interior wall, wherein the second anchor is embedded in a masonry joint of the exterior wall so that the first and second projections projects from the exterior wall towards the interior wall, wherein the eye is received between the first and second projections, and wherein the pin extends through the first aperture, the eye and the second aperture to connect the first and second wall tie parts.
- Disclosed is also a method for constructing a wall, comprising the steps of
- a) erecting an interior wall,
- b) fastening an anchor of a first wall tie in the interior wall, so that an eye of the first wall tie part projects from the interior wall,
- c) bringing a first projection and a second projection of a second wall tie part to enclose opposite sides of the eye,
- d) aligning the eye with a through aperture in the first projection and a through aperture in the second projection,
- e) inserting a pin through the aperture in the first projection, the eye and the aperture in the second projection to connect the first wall tie part with the second wall tie part, and
- f) arranging an anchor of the second wall tie part in a mortar joint of a masonry exterior wall.
- Further characteristics and advantages of the present invention will become apparent from the description of the embodiments below, the appended drawings and the dependent claims.
- The invention will now be described in more detail with the aid of exemplary embodiments and with reference to the accompanying drawings, in which
-
Fig. 1 is a schematic perspective view of a part of a wall and a wall tie according to one embodiment, wherein the wall comprises an interior wall, an exterior wall and a cavity between them, and wherein the wall tie is connected to the interior wall and engages the exterior wall, -
Fig. 2 is a schematic perspective view of a part of the wall tie according to one embodiment, illustrating a first wall tie part connected to a second wall tie part through a pin, -
Fig. 3 is a schematic side view of the wall tie ofFig. 2 , -
Fig. 4 is a schematic side view partly in section of the wall tie ofFig. 3 , -
Fig. 5 is a schematic cross section view of the wall tie along line I-I inFig. 3 , -
Figs. 6-8 are schematic views of different embodiments of the wall tie for different types of walls, -
Figs. 9-16 are schematic views of a first wall tie part of the wall tie according to different embodiments, -
Figs 17-21 are schematic top views of wall ties according to different embodiments, and -
Figs. 22-25 are a series of schematic perspective view illustrating construction of a wall including a wall tie according to one embodiment. - With reference to
Fig. 1 awall tie 10 connected to aninterior wall 11 and engaging anexterior wall 12 in a cavity wall structure under construction is illustrated according to one embodiment. Thewall tie 10 is arranged to stabilise theexterior wall 12 by connecting it to theinterior wall 11. Hence, thewall tie 10 is arranged to extend across acavity 13 between theinterior wall 11 and theexterior wall 12. Hence, according to the illustrated embodiment thewall tie 10 is a cavity wall tie. For example, theinterior wall 11 is any type of wall, such as a wall comprising studs and boards, wood, gypsum, composite materials, etc. Alternatively, theinterior wall 11 is a masonry wall, e.g. including concrete, expanded clay, light ballast concrete, haydite or similar materials. Theexterior wall 12 is a masonry wall, e.g. ofbuilding blocks 14 including concrete, expanded clay, haydite material or other types of masonry building blocks. For example, thebuilding blocks 14 are light ballast concrete blocks. Theexterior wall 12 comprisesjoints 15 between thebuilding blocks 14, such as bed joints, in which a part of thewall tie 10 is arranged to be embedded. For example, theexterior wall 12 also comprises insulation (not illustrated). For example the cavity wall is a conventional cavity wall. Thewall tie 10 is arranged to be tied into the mortar or cementitious material or similar type of material in thejoints 15 of theexterior wall 12. For example, thejoints 15 are thin bed mortar joints. For example, thewall tie 10 is arranged in stainless steel, composite materials, plastic materials or other corrosion resistant materials. - The
wall tie 10 comprises a firstwall tie part 16 and a secondwall tie part 17. In the illustrated embodiment the firstwall tie part 16 is arranged for fastening to theinterior wall 11, wherein the secondwall tie part 17 is arranged for fastening to theexterior wall 12. The firstwall tie part 16 is connectable to the secondwall tie part 17 by means of apin 18. - With reference also to
Figs. 2 and 3 the firstwall tie part 16 comprises an anchor portion, denotedfirst anchor portion 19 in this disclosure, and aneye 20 connected to thefirst anchor portion 19. Thefirst anchor portion 19 is arranged to be fastened to theinterior wall 11. InFigs. 2 and 3 only a part of thefirst anchor portion 19 is illustrated. Thefirst anchor portion 19 can be designed in a plurality of different ways for fastening to different types ofinterior walls 11, which is described in more detail below. Theeye 20 is, e.g. arranged in one end of thefirst anchor portion 19, wherein the opposite end of thefirst anchor portion 19 is arranged for attachment to theinterior wall 11. Theeye 20 is arranged for receiving thepin 18, so that thepin 18 extends through theeye 20. Hence, theanchor portion 19 is arranged for fastening to theinterior wall 11 and for partially extending through thecavity 13, so that the eye is projecting from theinterior wall 11 and is spaced from theinterior wall 11. - The second
wall tie part 17 comprises an anchor portion, denotedsecond anchor portion 21 in this disclosure. The secondwall tie part 17 further comprises a connectingportion 22, afirst projection 23 and asecond projection 24. Thesecond anchor portion 21 is arranged to be tied into the joint 15 of theexterior wall 12. Thesecond anchor portion 21 extends from the connectingportion 22 to be able to extend into the joint 15, while the connectingportion 22 is arranged outside the joint 15 and theexterior wall 12 in thecavity 13. In the illustrated embodiment, thesecond anchor portion 21 comprises aslanted end portion 25, e.g. to be received in acentral channel 26 of thebuilding block 14, so that thesecond anchor portion 21 extends into the joint 15 and is terminated with theslanted end portion 25 in thecentral channel 26 of thebuilding block 14. For example, theslanted end portion 25 is arranged to be slanted downwards when mounted in theexterior wall 12. In the illustrated embodiment, thesecond anchor portion 21 is flat and, e.g. formed in plate steel. For example, also the connectingportion 22 and optionally also the first andsecond projections - The
second anchor portion 21 is connected to thefirst projection 23 and thesecond projection 24 through the connectingportion 22. Further, thefirst projection 23 is connected to thesecond projection 24 through the connectingportion 22. The first andsecond projections portion 22 to form a gap between them, wherein the first andsecond projections second anchor portion 21 is connected to a central part of the connectingportion 22 and extends from it. For example, at least a part of thesecond anchor portion 21 extends perpendicular from the connectingportion 22. When connected to theexterior wall 12 the connectingportion 22 extends in a vertical direction upwards and downwards from thesecond anchor portion 21. For example, the connectingportion 22 and at least a part of thesecond anchor portion 21 form a T-shape. For example, the first andsecond projections portion 22. In the illustrated embodiment, the first andsecond projections portion 22, wherein the connectingportion 22 and the first andsecond projections second projections second anchor portion 21. When thewall tie 10 is mounted the first andsecond projections portion 22 extends in the vertical direction. Alternatively, the first andsecond projections portion 22, e.g. forming a Y-shape, wherein the first andsecond projections second projections portion 22. For example, a distance X between the first andsecond projections - The
pin 18 is arranged to connect the firstwall tie part 16 and the secondwall tie part 17. In the illustrated embodiment thepin 18 comprises ahead 27 for engaging thefirst projection 23, i.e. a top surface of the first projection when thewall tie 10 is mounted, so that thepin 27 is held in place by gravity. Alternatively, thepin 18 is provided with a conical portion or a flange or similar for engaging the top surface of the first projection. - With reference also to
Fig. 4 , thefirst projection 23 is provided with afirst aperture 28, and thesecond projection 24 is provided with asecond aperture 29. Thefirst aperture 28 is arranged through thefirst projection 23 and is arranged for receiving thepin 18, so that the pin extends through thefirst aperture 28 and a part of thepin 18 is arranged inside thefirst aperture 28 when the firstwall tie part 16 is connected to the secondwall tie part 17. Thesecond aperture 29 is arranged through thesecond projection 24 and is arranged for receiving thepin 18, so that thepin 18 extends through thesecond aperture 29 and a part of thepin 18 is arranged inside thesecond aperture 29 when the firstwall tie part 16 is connected to the secondwall tie part 17. The first andsecond apertures pin 18 can be introduced into the first andsecond apertures pin 18 has a straight centre axis Y, wherein the first andsecond apertures wall tie 10 is mounted the axis Y extends substantially vertically. Theeye 20 is adapted to be arranged between the first andsecond projections eye 20 is aligned with the first andsecond apertures pin 18 can be inserted through thefirst aperture 28, theeye 20 and thesecond aperture 29 to connect the firstwall tie part 16 to the secondwall tie part 17. Hence, the shape and dimensions of theeye 20 and theapertures pin 18. For example, the cross section of thepin 18 is constant in shape and dimension along the axis Y, wherein the secondwall tie part 17 is movable along thepin 18 and along the centre axis Y of thepin 18, which is illustrated by means of the arrow A inFig. 4 , before the secondwall tie part 17 has been tied to theexterior wall 12. Hence, the secondwall tie part 17 is adjustable in the vertical direction before thesecond anchor portion 21 has been engaged with or fastened to theexterior wall 12, wherein the secondwall tie part 17 is adjustable in height in relation to thebuilding blocks 14 so that thesecond anchor portion 21 can be adapted to the position of the joint 15 in which it is to be arranged. Thepin 18 is arranged to prevent the first and secondwall tie parts wall tie parts wall tie 10 is mounted and attached to the interior wall 1 and theexterior wall 12. According to one embodiment, the first andsecond apertures eye 20 are arranged for receiving thepin 18 in a relatively snug fit, so that any forces applied to the first and/or secondwall tie parts second anchor portions pin 18 and distributed to both the first andsecond projections - With reference also to
Fig. 5 the secondwall tie part 17 is rotatable around thepin 18, which is illustrated by means of the arrow B inFig. 4 . For example, thepin 18 and/or theapertures wall tie part 17 is pivotable around the centre axis Y. - With reference to
Fig. 6 thewall tie 10 is arranged for connecting theinterior wall 11 in the form of a masonry wall ofbuilding blocks 14 to an exterior wall comprising building blocks 14. For example, thebuilding blocks 14 of theexterior wall 12 and theinterior wall 11 are similar and are,e.g. building blocks 14 comprising haydite, concrete or similar, optionally with an insulation layer, reinforcement, etc. For example, thebuilding blocks 14 are conventional building blocks. - In
Fig. 7 theexterior wall 12 is a masonry wall comprising thebuilding blocks 14, wherein theinterior wall 11 is a wall comprising different layers, such as anouter board 30, aninsulation layer 31 and aninner board 32. The outer andinner boards insulation layer 31 is arranged between the studs. Theouter board 30 and theinner board 32 are, e.g. a gypsym wallboard, a wood chip panel, a cementitious board, a composite board or any suitable type of board for wall construction. In the embodiment ofFig. 7 thefirst anchor portion 19 is formed with anangle portion 33 for engaging and attachment to the surface of theinterior wall 11, e.g. by means of conventional fastening means, such as a screw or a nail, running through a hole in thefirst anchor portion 19. - In
Fig. 8 thefirst anchor portion 19 is embedded in theinterior wall 11. For example, theinterior wall 11 comprises wood, gypsum, studs, insulation or other suitable construction materials. For example, the interior wall comprises an outer windshield layer orvapour barrier 35, theouter board 30, theinsulation layer 31 and theinner board 32. Thefirst anchor portion 19 is arranged withexternal threads 34 to be screwed into theinterior wall 11, wherein thethreads 34 are brought to engage the interior wall for fastening thereto. Theexterior wall 12 inFig. 8 is a brick wall. Of course, the different types ofinterior walls 11 andexterior walls 12 ofFigs. 6-8 can be combined in any way. - With reference to
Figs. 9-15 the firstwall tie part 16 is illustrated according to different embodiment for fastening to different types ofinterior walls 11. The firstwall tie part 16 comprises theeye 20 and thefirst anchor portion 19. For example, thefirst anchor portion 19 comprises a bar, such as a straight bar as illustrated inFig. 9 , to be embedded in theinterior wall 11. Alternatively, thefirst anchor portion 19 is formed as a flat plate element, optionally provided with one or moreslanted portions 36, which is illustrated inFig. 10 . InFig. 11 thefirst anchor portion 19 is connected to theeye 19 through anintermediate portion 37, wherein thefirst anchor portion 19 is thin and flat. - illustrates the first
wall tie portion 16 as described with reference toFig. 8 , wherein thefirst anchor portion 19 is provided with theexternal threads 34, so that the first wall tie part is formed as a screw with theeye 20. InFig. 13 the firstwall tie part 16 is formed with the non-threadedintermediate portion 37 and the first anchor portion is formed with a lightconcrete thread 38, e.g. of plastic materials, for screwing into theinterior wall 11 in the form of haydite, light concrete or similar.Fig. 14 illustrates the firstwall tie part 16 as described with reference toFig. 7 , i.e. with theangle portion 33 for engaging theinterior wall 11 and the hole or anadditional eye 39 for fastening to the surface of theinterior wall 11. InFig. 15 thefirst anchor portion 19 is provided withprotrusions 40 for securing the first anchor portion in a mortar joint, concrete wall material or similar hardening construction material, wherein thefirst anchor portion 19 is arranged in the hardening material before it hardens. Theprotrusions 40 extend perpendicular to a longitudinal direction of theanchor portion 19, wherein theprotrusions 40 are arranged on top and bottom surfaces of thefirst anchor portion 19 to extend vertically when the firstwall tie part 16 has been mounted in theinterior wall 11. -
Figs. 16-20 illustrate thewall tie 10 according to different embodiments. With reference toFig. 16 thefirst anchor portion 19 is arranged as a flat plate with theslanted end portion 25 similar to thesecond anchor portion 21. Hence, the first andsecond anchor portions Fig. 16 are suitable for attachment to masonry walls. InFig. 17 the first andsecond anchor portions small holes 41 for engaging a hardening material. Hence, the first andsecond anchor portions Fig. 17 are suitable for attachment to masonry walls. InFig. 18 thefirst anchor portion 19 is formed with thethreads 34, wherein thesecond anchor portion 21 is formed as a flat plate with a fewlarger holes 41. Thefirst anchor portion 19 is arranged for attachment to a non-masonry wall or a masonry wall. InFig. 19 thefirst anchor portion 19 is formed withbends 42 to further secure thefirst anchor portion 19 in a hardening material and prevent thefirst anchor portion 19 from being displaced in a direction perpendicular to the plane of theinterior wall 11. InFig. 19 thesecond anchor portion 21 is provided withgrooves 43 for engaging the material of the joint 15 and thereby prevent displacement in a direction perpendicular to the plane of theexterior wall 12. With reference toFig. 20 thefirst anchor portion 19 is formed with an eye, e.g. by wire material, to tie thefirst anchor portion 19 to a hardening material of theinterior wall 11. - With reference to
Figs. 21-25 erection of a cavity wall and mounting of thewall tie 10 is illustrated schematically. The firstwall tie part 16 is fastened to theinterior wall 11. Hence, thefirst anchor portion 19 is attached to theinterior wall 11. In the illustrated embodiment, theinterior wall 11 comprises theouter board 30, theinsulation 31 and theinner board 32 but theinterior wall 11 can be any type of wall. Further, in the illustrated embodiment thefirst anchor portion 19 comprises theangle portion 33, wherein thefirst anchor portion 19 is attached to the surface of theinterior wall 11 by means of conventional fastening means 44, such as a screw. Alternatively, thefirst anchor portion 19 is arranged to be embedded in theinterior wall 11. Thefirst anchor portion 19, or at least a part thereof, projects from theinterior wall 11, such as perpendicular therefrom, so that theeye 20 projects from theinterior wall 11 and, e.g. is spaced from the outer surface of theinterior wall 11. Then, the first andsecond projections wall tie part 17 are brought to enclose upper and lower sides of theeye 20, so that theeye 20 is arranged between the first andsecond projections second apertures Fig. 22 . Hence, thefirst projection 23 is arranged above theeye 20, wherein thesecond projection 24 is arranged below theeye 20. Then thepin 18 is inserted into thefirst aperture 28 and further through theeye 20 and through thesecond aperture 29, which is illustrated by means of the arrow C inFig. 22 . Hence, in the illustrated embodiment, thepin 18 is inserted from above until thehead 27 engages thefirst projection 23 and thepin 18 locks the secondwall tie part 17 to the firstwall tie part 16, which is illustrated inFig. 23 . For example, thepin 18 is inserted vertically into theapertures eye 20. The secondwall tie part 17 is connected to the firstwall tie part 16 through thepin 18, wherein the secondwall tie part 17 is pivotable around thepin 18 and is vertically adjustable along thepin 18 between the first andsecond projections wall tie part 17 is adjustable along thepin 18 until one of theprojections eye 20. InFig. 23 the second wall tie portion and thepin 18 are hanging in theeye 20 of the firstwall tie portion 16. Hence, inFig. 23 the secondwall tie part 17 is in its lowermost position. Then, optionally and depending on original mounting position of the secondwall tie part 17, the secondwall tie part 17 is rotated around thepin 18, which is illustrated by means of the arrow D inFig. 24 to move the second wall tie portion out of the way during erection of theexterior wall 12 or a part thereof. For example, the secondwall tie portion 17 is rotated to a position in which thesecond anchor portion 21 is arranged substantially in parallel to theinterior wall 11 or is inclined towards theinterior wall 11, so that the free end of thesecond anchor portion 21 is closer to theinterior wall 11 than the opposite end thereof, which opposite end is connected to the connectingportion 22. Hence, thesecond anchor portion 21 is turned away, clockwise or counter-clockwise around thepin 18, from the area in which theexterior wall 12 is to be erected, so as not to obstruct arrangement of a layer ofbuilding blocks 24 at a height corresponding to the position of thewall tie 10. Then, a part of theexterior wall 12, such as abuilding block 14 or a layer ofbuilding blocks 24 thereof, is erected, wherein the secondwall tie part 17 is adjusted in height to suitable position, which is illustrated inFig. 25 by means of the arrow E, and turned out so that thesecond anchor portion 21 is brought to engage a top surface of abuilding block 14, which is illustrated by means of the arrow F. Hence, the secondwall tie part 17 is displaced along thepin 18 to suitable height and pivoted around thepin 18 so that thesecond anchor portion 21 extends substantially perpendicular to the inner surface of theexterior wall 12 and substantially in a plane of the top surface of thebuilding block 14 so as to be embedded in a joint 15 between thebuilding block 14 and a building block to be arranged on top of saidbuilding block 14. Hence, thesecond anchor portion 21 is tied into the joint 15 and is fixed therein when the hardening material of the joint 15 solidifies. When thewall tie 10 has been tied into theexterior wall 12 it is fixed and secures theexterior wall 12 to theinterior wall 11. Any load in vertical direction on any of thefirst anchor portion 19 and thesecond anchor portion 21 is distributed between saidanchor portions pin 18 and the first andsecond projections
Claims (13)
- A wall tie (10) for connecting an interior wall (11) to an exterior wall (12), comprising a first wall tie part (16) for fastening in one of the interior wall (11) and the exterior wall (12), and a second wall tie part (17) for fastening in the other one of the interior wall (11) and the exterior wall (12), wherein the first wall tie part (16) is connectable to the second wall tie part (17), and whereinthe first wall tie part (16) comprises a first anchor portion (19) and an eye (20),the second wall tie part (17) comprises a second anchor portion (21), a connecting portion (22), a first projection (23) and a second projection (24) connected to the first projection (23) through the connecting portion (22), the first and second projections (23, 24) being spaced apart, wherein the first projection (23) is provided with a through first aperture (28), and wherein the second projection (24) is provided with a through second aperture (29),the eye (20) is insertable between the first projection (23) and the second projection (24), andthe wall tie (10) includes a pin (18) for insertion into the first aperture (28), the eye (20) and the second aperture (29) to connect the second wall tie part (17) to the first wall tie part (16),characterised in that the first and second apertures (28, 29) and the eye (20) are arranged for receiving the pin (18) in a snug fit.
- The wall tie of claim 1, wherein the first and second apertures (28, 29) are aligned.
- The wall tie of any of the preceding claims, wherein the pin (18), the eye (20) and/or the apertures (28, 29) is/are arranged with a circular cross section, so that the first and second wall tie parts (16, 17) are rotatable in relation to each other around the pin (18).
- The wall tie of any of the preceding claims, wherein the pin (18) is arranged with a longitudinal axis (Y) and a regular diameter, so that the pin (18) is displaceable in relation to the eye (20) along said longitudinal axis (Y) before the second anchor portion has been engaged to the wall.
- The wall tie of any of the preceding claims, wherein the first projection (23) is arranged in parallel to the second projection (24).
- The wall tie of any of the preceding claims, wherein a distance (X) between the first projection (23) and the second projection (24) is 10-100 mm.
- The wall tie of any of the preceding claims, wherein the second anchor portion (21) is connected to a central part of the connecting portion (22) and extends perpendicular from a first side of the connecting portion (22), and wherein the first and second projections (23, 24) extend perpendicular from an opposite second side of the connecting portion (22).
- The wall tie of any of the preceding claims, wherein the second anchor portion (21) is flat.
- The wall tie of any of the preceding claims, wherein the first wall tie part (16) is an inner wall tie part for fastening in the interior wall (11), and the second wall tie part (17) is an outer wall tie part for fastening in the exterior wall (12).
- A wall comprising the wall tie (10) according to any of the preceding claims, wherein the wall comprises an interior wall (11) and an exterior wall (12) being spaced apart to form a gap between them, wherein the first anchor portion (19) is fastened to the interior wall (11) and the eye (20) projects from the interior wall (11), wherein the second anchor portion (21) is embedded in a masonry joint (15) of the exterior wall (12) so that the first and second projections (23, 24) projects from the exterior wall (12) towards the interior wall (11), wherein the eye (20) is received between the first and second projections (23, 24), and wherein the pin (18) extends through the first aperture (28), the eye (20) and the second aperture (29) to connect the first and second wall tie parts (16, 17).
- Use of a wall tie according to any of claims 1-9 for connecting the exterior wall (12) to the interior wall (11) of a cavity wall.
- A method for constructing a wall, comprising the steps ofa) erecting an interior wall (11),b) fastening an anchor portion (19) of a first wall tie part (16) in the interior wall (11), so that an eye (20) of the first wall tie part (16) projects from the interior wall (11),c) bringing a first projection (23) and a second projection (24) of a second wall tie part (17) to enclose opposite sides of the eye (20),d) aligning the eye (20) with a through aperture (28) in the first projection (23) and a through aperture (29) in the second projection (24),e) inserting a pin (18) through the aperture (28) in the first projection (23), the eye (20) and the aperture (29) in the second projection (24) in a snug fit to connect the second wall tie part (17) with the first wall tie part (16), andf) arranging an anchor portion (21) of the second wall tie part (17) in a joint (15) of a masonry exterior wall (12).
- A method according to claim 12, comprising the steps of arranging the pin (18) vertically, and rotating the second wall tie part (17) around the pin (18) into the desired position before step f).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP16162036.4A EP3222790B1 (en) | 2016-03-23 | 2016-03-23 | A wall tie, a wall comprising such a wall tie and a method for constructing a wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP16162036.4A EP3222790B1 (en) | 2016-03-23 | 2016-03-23 | A wall tie, a wall comprising such a wall tie and a method for constructing a wall |
Publications (2)
Publication Number | Publication Date |
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EP3222790A1 EP3222790A1 (en) | 2017-09-27 |
EP3222790B1 true EP3222790B1 (en) | 2018-04-11 |
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Application Number | Title | Priority Date | Filing Date |
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EP16162036.4A Not-in-force EP3222790B1 (en) | 2016-03-23 | 2016-03-23 | A wall tie, a wall comprising such a wall tie and a method for constructing a wall |
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EP (1) | EP3222790B1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ222216A (en) * | 1986-10-31 | 1990-03-27 | Ernest Bertram Lapish | Wall tie connector |
GB9622233D0 (en) * | 1996-10-25 | 1996-12-18 | Ancon Clark Ltd | Wall ties |
-
2016
- 2016-03-23 EP EP16162036.4A patent/EP3222790B1/en not_active Not-in-force
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None * |
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