EP4206409A1 - Mur creux avec une partie de retenue pour un tirant de mur - Google Patents

Mur creux avec une partie de retenue pour un tirant de mur Download PDF

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Publication number
EP4206409A1
EP4206409A1 EP22215965.9A EP22215965A EP4206409A1 EP 4206409 A1 EP4206409 A1 EP 4206409A1 EP 22215965 A EP22215965 A EP 22215965A EP 4206409 A1 EP4206409 A1 EP 4206409A1
Authority
EP
European Patent Office
Prior art keywords
wall
cavity
leaf
fixation system
hook
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.)
Pending
Application number
EP22215965.9A
Other languages
German (de)
English (en)
Inventor
Ejvind HASSELSTRØM
Poul Aage Hasselstrøm JOHANSEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eh Teknik Aps
Original Assignee
Eh Teknik Aps
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eh Teknik Aps filed Critical Eh Teknik Aps
Publication of EP4206409A1 publication Critical patent/EP4206409A1/fr
Pending legal-status Critical Current

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    • 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 invention generally relates to the technical field of a cavity wall.
  • the present invention in particular relates to a cavity wall comprising a first fixation system for a wall tie and to the use of such wall tie.
  • Wall ties are commonly known from the field of building construction, where two wall leaves are built and tied together by a wall tie so as to form a cavity wall having an outer wall and an inner wall leaf with a cavity in between.
  • a wall tie is a contiguous steel rod arranged to be fixed at each end to a wall leaf and extending across the cavity.
  • These wall ties are first installed in the inner wall leaf, and then bent upwards in the cavity, while the outer leaf is constructed, so that they do not obstruct the workers in the space provided by the cavity.
  • the workers typically bricklayers, insert the free end of the wall tie in the mortar between bricks so as to tie the wall leaves together.
  • Wall ties are important for ensure structural integrity of the walls.
  • the cavity between wall leaves can be used to store objects, such as cables and/or pipes for electrical installations, plumbing, water installations and more, which are to be securely fixed to a wall leaf or securely tied to the wall ties extending between the wall leaves.
  • objects such as cables and/or pipes for electrical installations, plumbing, water installations and more
  • This can be quite burdensome for the workers, as they must ensure a suitable fixation of the objects to the walls.
  • the workers may need to fix the objects by hammering nails into the wall leaves at several anchor points along the wall leaf, which may compromise the integrity of the wall leaf.
  • the wall ties used are typically made of steel to ensure sufficient strength and are furthermore of a sufficient transverse cross-sectional size to ensure the stability of the wall tie as it may be affected by forces, such as pulling and pushing forces.
  • rods of a diameter of at least 5 mm are used for the wall ties.
  • It is an object of the present invention to provide a cavity wall comprising a fixation system for a wall tie with a hook arrangement for retaining one or more cables and/or pipes, and a wall tie having such fixation system, which provides the structural integrity needed for a cavity wall and which provides a quicker, more effective and secure building process for buildings made with cavity walls.
  • the first aspect of the present invention relates to a cavity wall comprising a first wall leaf, a second wall leaf, a wall cavity arranged between the first wall leaf and the second wall leaf of the cavity wall and a wall tie connecting the first wall leaf and the second wall leaf, wherein the wall tie comprises a first fixation system fixing the wall tie to the first wall leaf, wherein the first fixation system comprises;
  • the cavity wall preferably comprises a plurality of such wall ties connecting the first wall leaf and the second wall leaf.
  • the present invention potentially further provides a suitable first part of a wall tie for structurally fixing a first wall leaf to a second wall leaf of a cavity wall.
  • the cavity walls are typically constructed by first constructing the inner leaf and in that process embedding a first end of a wall tie in that leaf, and then bending the protruding part of the wall tie away until the second leaf is to be constructed. In the process of constructing the second leaf, the second end moved into position and embedded in the second leaf.
  • the cavity wall comprising of a first fixation system of a protruding length, which corresponds to at least 10 %, such as at least 20 %, such as at least 30 % such as at least 40% of the width of the cavity between the first and second leaf, when the first fixation system is installed.
  • the first fixation system is of a protruding length, which corresponds to less than 80 % such as less than 70 % such as less than 60% of the width of the cavity between the first and second leaf, when the first fixation system is installed.
  • the protruding length of the first fixation system when installed may be extent across 10-80% of the width of cavity, wherein the width of the cavity is measured from an inner major surface of the first wall leaf to an inner major surface of the second wall leaf, and wherein the protruding length of the first fixation system is measured from the inner surface of the first wall leaf and the most distal point of the first fixation system from the first wall leaf.
  • the first wall leaf is made of concrete such as gas concrete or aerated concrete.
  • the first wall leaf may be made of blocks adhered or otherwise fixed together, such as concrete blocks.
  • the concrete blocks may alternatively be of a height equal to the room height, i.e. 240 cm.
  • the first installation element is configured to be installed through any side of the concrete block, wherein the sides are extending parallel to the thickness of the block, e.g. from an inner major surface to an outer major surface of the concrete block.
  • this may ease the instalment process of the first fixation system.
  • the first installation element is arranged to be substantially parallel with a major extent of the first wall leaf.
  • the first installation element may be arranged to be fixed relative to the first wall leaf by being embedded in the first wall leaf, e.g. so that the wall leaf surrounds the first installation element about a transverse cross-section thereof.
  • the first wall leaf may be directly abutting the first wall element, e.g. such as providing a tight fit between the first installation element and the first wall leaf.
  • the first installation element may be fixed to the first wall leaf by being built into the first wall leaf or by being inserted into the first wall leaf, e.g. by hammering the first installation element into the first wall leaf or by being cast into mortar or other adhesive means between blocks/bricks of the first wall leaf.
  • a section of the first cavity element, extending from the first installation element is also embedded in the first wall leaf, e.g. an L-shaped part provided by the installation element and the cavity element may be embedded.
  • the first cavity element is configured to facilitate attachment of the first wall leaf to the second wall leaf.
  • the first cavity element extends in a different direction than the first installation element, e.g. the orientation of the longitudinal extent of the first installation element may be different from the orientation of the longitudinal extent of the first cavity element.
  • the first installation element and the first cavity element are attached to each other in a substantially L-shaped configuration.
  • the longitudinal extent of the first cavity element may be arranged substantially perpendicular to the longitudinal extent of the first installation element, however the element may also be arranged with other angles between them.
  • the first cavity element is arranged along a first direction being substantially perpendicular to a major extent of the first wall section.
  • the first cavity element is preferably anchored in the first wall leaf by the first installation element and arranged to extend toward the second leaf in order provide a contact point for structural connection between the first and second leaf.
  • the contact point may provide at least part of a connection arrangement between the first fixation system and a second fixation system anchored in the second leaf.
  • the retainer part is extending from the first cavity element and away from the first cavity element, e.g. such as along an inner major surface of the first wall leaf.
  • the retainer part may comprise an arm extending from the first cavity element to the hook arrangement, such that the hook arrangement is arranged at a distance from the first cavity element, e.g. equal to the length of the arm.
  • the retainer part is fixed to the first cavity element in a substantially T-shaped configuration.
  • the retainer part is fixed to the first cavity element at a fixation point F 1 location spaced from the inner major surface of the first wall leaf, so that any excess fixation means, e.g. adhesive, protruding out form joint between blocks/bricks or the like of the first wall leaf has a space to protrude into.
  • an arm of the retainer part is preferably fixed to the first cavity element.
  • the retainer part e.g. an arm of the retainer part, comprises one or more bends so as to direct the retainer part from the fixation point F1 in a direction away from the first cavity element and towards the inner major surface of the first wall leaf.
  • the retainer part e.g. an arm of the retainer part, comprises one or more bends so as to direct the retainer part from the fixation point F1 in a direction away from the first cavity element and towards the inner major surface of the first wall leaf.
  • a space is provided between the retainer part and the inner major surface of the first wall leaf and extending from the first cavity element.
  • the hook arrangement may be integral or separate to the arm of the retainer part, e.g. it may be made from the same piece of material as the arm of the retainer part or it may be made from a separate piece attachable to the arm of the retainer part.
  • the retainer part and the hook arrangement in the same material, structural integrity between the two may be ensured. Further, depending on the moulding properties of the material, the parts may be moved into different relative positions.
  • the hook arrangement as a separate piece, the building process may be eased as the hook arrangement does not need to be installed until it's needed.
  • the separate pieces may be made by different materials, which may decrease costs and increase recyclability of the first fixation system and the wall tie.
  • the hook provides a substantially U-shaped part providing a retainer space for retaining the one or more cables and/or pipes in a first lateral direction, when the first fixation system is installed.
  • the U-shaped part may be provided with curved or right-angled corners.
  • the U-shaped part preferably provides a retainer space by enclosing the retainer space at each side thereof by wall(s) of the hook or by wall(s) of the hook and the first wall leaf.
  • a lateral plane e.g. horizontal plane when the wall tie is installed, is spanned by a first and second lateral direction, wherein the first lateral direction is perpendicular to the second lateral direction.
  • the hook is arranged to retain the one or more cables and/or pipes in the first lateral direction and not in the second lateral displacement, i.e. the cables and/or pipes may be displaced freely through the hook along the second lateral direction.
  • elongated cables and or pipes to be retained may be inserted into the hook along the second lateral direction.
  • each hook may comprise a retainer opening allowing for insertion and removal of the cables and/or pipes from the hook. This allows for easy and quick insertion of cables and/or pipes.
  • the hook arrangement comprises a hook, which is arranged so that the retainer opening is directed upwards, when the retainer part is installed.
  • the retainer opening may thereby be arranged to allow displacements of cables and/or pipes in an out of the retainer space in a direction perpendicular to the lateral plane, e.g. in a vertical direction.
  • this may provide a simple and effective hook in which the cables and/or pipes are retained by the hook in cooperation with the gravitational force acting on the cables and/or pipes.
  • the hook arrangement may comprise a retainer opening, which may be directed outwards or inwards, i.e. facing towards the second wall leaf or towards the first wall leaf, respectively, e.g. the hook may comprise a U-shaped bottom having a retainer space, which may be accessed through a retainer opening in at a side of the hook.
  • the hook may for example have a C-shaped cross-section when installed and when viewed in a plane being perpendicular to the wall leaves.
  • the hook arrangement may comprise a retainer opening, which may be directed sideways, e.g. with an extent arranged majorly perpendicular to the length of the cavity, e.g. facing away from both the first and second leaf.
  • the hook may provide a retainer space between the inner major surface of the wall leaf and a first hook wall, or between a second hook wall and the first hook wall, such that the extent of the retainer opening is arranged substantially in a plane extending from the first wall leaf to the second wall leaf and optionally extending majorly in a vertical orientation.
  • one or more hooks of the hook arrangement is configured to retain the cable(s) and/or pipe(s) in collaboration with a section of the inner major surface of the first wall leaf.
  • the retaining effect provided by the hook arrangement may be aided by the first wall leaf, e.g. the retainer part may comprise a base part and a first hook wall extending from the base part in a direction being majorly and generally along the inner major surface of the first wall, so that the base part provides a bottom part of the hook and the first hook wall and the opposing first wall surface provides the retaining space.
  • the base part is arranged to be positioned closer to the inner major surface of the first wall leaf than the first hook wall, such as in structural connection with the first wall leaf.
  • the hook arrangement may comprise a plurality of hooks extending in different directions.
  • the retainer part may comprise further hook walls, hook walls extending in different directions from the base part.
  • the hooks may be different, e.g. in size of the retaining space.
  • this increases the applicability of the hook arrangement as it may then be used for objects of different size.
  • some hooks may further provide a second hook wall between the inner surface of the first wall leaf and the first hook wall, so as to provide a retainer space between the first and second hook wall.
  • the second hook wall may extent from the first hook wall and further provide the bottom part of the hook in collaboration with the first hook wall or the second hook wall may extend from the base part.
  • the second hook wall is arranged to connect the first hook wall and the base part, such that the bottom part of the hook is furthest away from the base part.
  • the retainer opening may be provided between the first and second hook walls or between the first hook wall and the inner surface of the first wall leaf.
  • the size of the retainer opening may be adjustable by providing the hook arrangement with closing means.
  • the closing means may be provided by flexible properties of the hook arrangement, e.g. the hook may comprise resilient means, such as being made of a resilient material, which allows the retainer opening to be enlarged or reduced.
  • the hook arrangement may comprise spring elements arranged to allow an increase in the size of the retainer opening by biasing the spring element, e.g. the spring element may be installed at the root of a hook wall. The hook arrangement may be arranged so that upon termination of a biasing force applied to the spring element, the spring element will return to its equilibrium state and the retainer opening will be reduced to its size in the equilibrium, non-biased state.
  • the hook may be a clamp or a clip.
  • the flexible properties of the hook arrangement may provide an equilibrium state in which the retainer opening is of a size too small to allow passage of the objects, such as one or more cables and/or pipes to be retained, e.g. the equilibrium state (unbiased state) of the hook may eliminate the retainer opening.
  • the hook may comprise a door for opening and closing the retainer opening, e.g. the door may be an elastic or rigid element connecting opposing sides of the retainer opening, e.g. two hook walls.
  • the hook arrangement is arranged to be fixed to the first wall leaf by fastening means such as screws etc. e.g. through fastening aperture(s).
  • This fixation is in addition to the fixation to the first wall leaf, which may be provided through the first installation element and the first cavity element.
  • this may ensure proper orientation and fixation relative to the first wall leaf.
  • the retainer part may be connected to the first wall leaf through the inner major surface of the first wall leaf.
  • the retainer part may be connected directly to the first wall leaf by providing a screw through the fastening apertures in the base part of the retainer part and into the first wall leaf.
  • the first fixation system according to any of the preceding claims wherein the first cavity element comprises a first mounting part for a mounting connection arranged to connect the first wall leaf to the second wall leaf.
  • the mounting connection may be provided by embedding the first cavity element inside the second wall leaf, however, preferably the mounting connection is provided in the wall cavity by the connection of the first mounting part with a second mounting part, which is a part of a second fixation system fixed to the second wall leaf.
  • the first mounting part is configured to be connectable with a second mounting part when the installation part is arranged in horizontal or in vertical orientation when installed.
  • Connectable is meant as being capable of establishing the structural connection.
  • the first mounting part is configured to be connectable with a second mounting part irrespectively of the orientation of the first installation element when installed.
  • the first mounting part may be arranged to be movable, e.g. rotatable, relative to the first installation element.
  • the first mounting part is of a shape ensuring that a proper mounting connection may be established.
  • the first cavity element comprises a first mounting part for a mounting connection arranged to connect the first wall leaf to the second wall leaf, wherein the first mounting part is an aperture for engaging with a barbed arrangement so as to create the mounting connection.
  • the aperture e.g. slit or loop or the like, may be established such that the connection may be established at many or all orientations of the first installation element when installed.
  • the first mounting part may comprise a barbed arrangement for engaging with an aperture of the second mounting part so as to create the mounting connection.
  • the aperture may be of any shape suitable for providing a structural connection with the barbed arrangement.
  • the first and/or first cavity element and/or at least the retainer arm of the retainer arrangement, and optionally also the hook arrangement including the hook(s), are all made of the same type of material, such as metal and/or plastic.
  • this may ease the production process for manufacturing the first fixation system and the wall tie.
  • the first installation element, the first cavity element and at least a part of the retainer part is made of metal, such as steel.
  • metal is a good material for providing structural integrity.
  • the elements and parts are made of stainless steel.
  • stainless steel is more corrosion resistant.
  • the first installation element is made of steel, such as stainless steel
  • the first cavity element comprises at least a section made of a different material, such as an insulating material, e.g. the first mounting part of the first cavity element may be made of plastic.
  • the second fixation system may comprise an insulating material in the conductive line of the wall tie.
  • the hook arrangement may be made of insulating material, such as plastic, but may alternatively also be made of a metal.
  • the first installation element, the first cavity element and the retainer part including the hook(s) are all made from the same material piece, e.g. wire, elongated plate material or rod.
  • the first installation element and the first cavity element are made from the same piece of material, e.g. a metal rod or elongated plate-material, provided with a bend separating the first installation element and the first cavity element, i.e. the first installation element is contiguous with the first cavity element.
  • the first cavity element and the retainer part may be made from the same piece of material, which may shaped to provide the first cavity element and the retainer part including the hook arrangement.
  • the hook arrangement may be made from a separate piece of material, and optionally also a different material than the material used to make the remainder of the retainer element.
  • the plastic material which may be used, is preferably recycled plastic material.
  • this provides a more environmentally friendly first fixation system and wall tie.
  • the hook arrangement comprises at least one hook made from a single material or by connecting a plurality of separate pieces of material.
  • the hook may be made from a single material formed, moulded, shaped, curved or bent into a hook-shape.
  • the hook may be provided by a plurality of separate pieces of material connected at end-to-end e.g. in angled arrangement, so as to provide the hook-shape.
  • the hook arrangement may comprise the same, similar or different types of hooks.
  • the retainer part is made of a wire or rod, which is of a diameter between 1-4 mm, such as between 1.5-3.5 mm, preferably between 2-3 mm.
  • this provides a rod, which may be formed, e.g. bent, into the desired shapes.
  • the first installation element and the first cavity element is made of a wire or rod of a diameter between 1-4 mm, such as between 1.5-3.5 mm, preferably between 2-3 mm, e.g. the first fixation system may be made of the same rod/wire.
  • the smaller rod diameter compared to conventional wall ties provides a more environmentally friendly and cost-saving first fixation system and wall tie.
  • the retainer part is arranged to be movably connected to the first cavity element, so that it may be moved relative to the first cavity element when installed.
  • this allows for ensuring correct orientation and position of the retainer part, e.g. the hooks, after installing the first fixation system.
  • the retainer part is movable by being rotatable about the longitudinal extent of the first cavity element.
  • the rotatable properties may be provided by a loose connection provided between the retainer part and the first cavity element, e.g. the retainer part may be fixed to the first cavity element by providing a loop on the retainer part, which can surround the elongated first cavity element, e.g. an operable loop, which can be opened and closed for mounting onto the first cavity element.
  • the retainer part is arranged to position itself into the correct position, e.g. vertical orientation, by means of gravity acting on the retainer part when installed for example by providing said loop.
  • the retainer part is rotatable about an axis extending through the first fixation point F1, and preferably perpendicular to the longitudinal extent of the first cavity element.
  • the rotatable properties may be provided by making the retainer part in a deformable material, such as a bendable/twistable metal wire or rod. Alternatively, a suitable connection may be provided.
  • the hook arrangement is arranged to be movably connected to the retainer part, e.g. an arm thereof, so that it may be moved relative to the retainer part when installed.
  • this allows for ensuring correct orientation and position of the hooks after installing the first fixation system.
  • This may be provided by a deformable material or other suitable connection between the hook arrangement and the remainder of the retainer part.
  • the hook arrangement may comprise attachment means, e.g. a cavity or hole, which is arranged to receive and rotate about an end of an arm of the retainer part.
  • the wall tie provide means for easy and secure allocation of objects, such as one or more cables and/or pipes.
  • the first fixation system provides the wall tie by being fixed at a first end, at the installation element, to the first wall leaf and at a second opposite end to the second wall leaf, e.g. by an end of the first cavity element.
  • the wall tie is provided by connecting the first fixation system to a second fixation system arranged to be fixed to the second wall leaf.
  • the wall tie may be installed at two separate process steps of the building process, which allows for more space in the cavity during construction of the second wall leaf, as only the first fixation system of the wall tie, i.e. a first part of the wall tie is installed at that moment. This further eliminates the need of having to bend the wall tie. By ensuring that the wall tie is not protruding too far into the cavity, higher work safety for the workers can be ensured, both during installing cables and during construction of the second leaf.
  • the wall tie further comprises a second fixation system for fixing the wall tie to the second wall leaf. The wall tie may thereby comprise two discrete fixation systems to be connected in the cavity wall.
  • the wall tie further comprises a second fixation system for fixing the wall tie to a second wall leaf.
  • the wall tie further comprises a second fixation system identical or different to first fixation system, wherein the second fixation system is arranged to fix the wall tie to the second wall leaf.
  • the fixations systems may differ in material choice and/or in features.
  • the second fixation system is similar to first fixation system except that the second fixation system may be devoid of the retainer part.
  • the second fixation system comprises or consists of an elongated part, which may preferably be configured to be inserted in mortar between bricks.
  • the elongated part may comprise perforation through which mortar can be placed, e.g. the elongated part may be shaped as a ladder.
  • the elongated part preferably comprises a second mounting part at an end thereof.
  • the wall tie comprises a mounting connection, wherein the mounting connection comprises a first mounting part of the first fixation system and a second mounting part of the second fixation system, wherein the mounting parts are configured to engage with each other so as to connect the first fixation system to the second fixation system.
  • the mounting part preferably provides a structural connection between the first and second wall leaves, so as to successfully tie the two wall leaves together.
  • the mounting connection may be any structural connection, such as a snap- or click-connection, a hook and loop connection, crimped connection, lock-connection and/or threaded connection etc.
  • the mounting connection is configured to provide a mounting connection, which can easily and quickly be established, preferably by using a minimum number of tools, and which provides the necessary structural support for the cavity wall.
  • the second mounting part may comprise barb(s) and the first mounting part may comprise means, e.g. cavity, hole etc. for engaging with the barb, e.g. the first mounting part may comprise a slit- or ring-shaped part at the end of the first cavity element. Additionally or alternatively, the first mounting part may comprise barb(s) and the second mounting part may comprise means for connecting with said barb and establishing a structural connection.
  • the second fixation system comprises
  • a longitudinal section is provided, which is configured to reduce heat transfer between the leaves, so as to provide an interrupted conductive line.
  • the longitudinal section can be thought of as an insulator.
  • the second fixation system comprises a material different to the material of the first fixation system.
  • the second fixation system is an elongated part, with the second installation element at a first end and the second cavity element at a second end of the elongated second fixation element, and wherein at least a longitudinal section of the second fixation system, e.g. a longitudinal extent of the second and/or second installation element is made of a material being of lower thermal conductivity than the material of the first fixation part.
  • the entire second fixation system is made of an insulating material, such as a synthetic material.
  • the second fixation system is made of a synthetic material, such as plastic.
  • the majority or the entire elongated part may be made of an insulating material, such as synthetic material, such as plastic.
  • the first fixation system is made of metal, such as steel or stainless steel.
  • the first and second cavity element arranged in succession, e.g. so as to provide a substantially straight second fixation system.
  • they are arranged similar to the first cavity element and the first installation element, e.g. in an L-shaped configuration.
  • the second installation element is configured to be inserted, such as built into the second wall leaf, e.g. between bricks, and the second cavity element is preferably arranged to extent into the wall cavity and provide a connection point to connect with the first fixation system, when the second fixation system is installed.
  • the second aspect of the present invention relates to a use of the first fixation system according to any of the embodiments of the cavity wall comprising a wall tie, wherein the first fixation system is fixed to a first wall leaf by the first installation element and connected to a second wall leaf through the first cavity element.
  • the first fixation system may in particular be used in gas concrete or aerated concrete wall leaves, e.g. the first installation element may be hammered through a side of a concrete block.
  • the third aspect of the present invention relates to a use of the wall tie according to any of the embodiments for connecting a first wall leaf to a second wall leaf of a cavity wall.
  • the wall tie may be provided by first installing the first fixation system in the first wall leaf, then installing any objects on the retainer part if needed, and then installing the second fixation system in the second wall leaf and connecting it to the first fixation system through the mounting connection.
  • the wall tie may be constructed in a synthetic material, such as plastic.
  • the hook arrangement may be a separate piece, which may be installed onto the remainder of the first fixation system/wall tie, e.g. after installation of the first installation element.
  • the retainer part, the hook arrangement, the installation element, the cavity element, the first fixation system and/or the second fixation system may be provided as a kit of parts for a wall tie.
  • the hook arrangement may be constructed in a synthetic material, such as plastic.
  • FIG. 1 illustrates a first fixation system 4 and wall ties 1 according to embodiments of the invention, seen in perspective.
  • the wall leaves 2, 3 are arranged to provide a cavity wall with a cavity 21 provided between the wall leaves 2, 3.
  • the wall tie comprises a first fixation system 4 installed in the first wall leaf 2, preferably by hammering a first installation part 5 of the first fixation system 4 into the first wall leaf 2, e.g. into the a concrete block, such as through the top or a side of the concrete block as depicted in Fig. 1 .
  • the first fixation system 4 comprises means for holding and retaining objects 20, such as cables or pipes, in a pre-determined region within the cavity, as shown in Fig. 1 .
  • the retaining part of the first fixation system 4 will be described in further details later.
  • Fig. 1 further shows that the wall tie 1 of the present invention further comprises a second fixation system 7, which is installed in the second wall leaf 3, e.g. by being placed between bricks and in mortar located between the bricks, if the second wall leaf is a brick masonry, e.g. the second wall leaf may be installed by having a part thereof fixed either between a top of a first brick and a bottom of a second brick or between opposing sides of two neighbouring bricks.
  • the second fixation system may also be fixed by hammering the second fixation system 7 into the second wall leaf 3.
  • Fig. 2 shows one of the examples of a first fixation system 4 from Fig. 1 .
  • the first fixation system comprises a first installation element 5 inserted inside the first wall leaf 2 and a first cavity element 6 connected to the first installation element 5 and extending towards the second wall leaf 3 and into the cavity 21, shown in Fig. 1 .
  • a retainer part 10 is connected at fixation point F1 and provides a retainer arm 10a extending downwards in a shape so as to provide a hook arrangement 11 comprising a hook 12.
  • the shape of the retainer part 10 is provided so that a space is created between the first wall leaf and the top part of the retainer part 10, which space for example accommodate potential outflow of excess adhesive between concrete blocks.
  • the hook 12 effectively provides a retainer space in which, objects 20 can be inserted through a retainer opening of the hook 15.
  • the objects 20 may be elongated objects, such as cables or pipes. Naturally, the objects 20 may also be inserted from the side of the hook.
  • cables may simply hang on a hook 12 and be retained in an area of the cavity, e.g. for storing purposes.
  • the cavity wall may be installed with several first fixation systems 4 as per the present invention, the cavity wall may comprise several anchor points for the objects to be retained in.
  • the first cavity element 6 further comprises a first mounting part 31 of a mounting connection 30, which can be established by connecting the first mounting part 31 to a second mounting part of a second fixation system.
  • Fig. 3 shows a zoomed in drawing of the wall ties 1 as depicted in Fig. 1 .
  • the first wall leaf 2 is shown comprising an outer major surface 2b facing the outside of the cavity wall and an inner major surface 2a facing the cavity 21.
  • the second wall leaf is shown comprising an outer major surface 3b facing the outside of the cavity wall and an inner major surface 2b facing the cavity 21.
  • the first wall leaf 2 may be a part of a wall facing towards the inside of the construction, e.g. house, while the second wall leaf 3 may be a part of a wall facing the outside of the construction.
  • Two wall ties 1 are depicted in Fig. 3 .
  • Both wall ties 1 comprises a first fixation system 4 as described in relation to Figs. 1-2 with a first installation element 5 and a first cavity element 6 and a retainer part 10.
  • the first fixation system 4 is connected to a second fixation system 7 by a mounting connection 30.
  • the mounting connection 30 is provided by a first mounting part 31 of the first fixation system 4, which in the present case provides as hook.
  • the second fixation system 7 comprises a second mounting part 32 of the mounting connection 30 in the form of a loop, which is configured to latch onto the hook of the first mounting part 31 so as to provide a structural connection between the wall leaves 2, 3.
  • the second fixation system 7 of Fig. 3 comprises a second installation element 8 for fixing the second fixation system 7 to the second leaf and a second cavity element 9 connected to the second installation element 8 and extending towards the first wall leaf2.
  • the second mounting part 32 is provided on the second installation element 8.
  • the installation part 5, 8 may be rotatable around the cavity element 6, 9, or vice versa.
  • the cavity element 6, 9 and the installation element 5, 8 may be made of a material, which is bendable and/or twistable so that the relative position between the elements 5, 6, 8, 9 can be modified, e.g. after fixing the installation element 5, 8 to a wall leaf 2, 3.
  • the same may alternatively or additionally be the case between the retainer part 10 and the cavity element 6.
  • the fixation system 4, 7 may be configured so that the mounting parts 31, 32 may be rotatable or twistable relative to the installation and/or cavity element of the fixation system 4, 7. Thereby, the correct orientation may be provided for establishing the mounting connection 30, e.g. prior or post installation of the installation element 5, 8.
  • This may be provided by providing a mouldable, e.g. twistable and/or bendable material, or a mechanical connection providing the relative movement between the elements and/or parts (not shown).
  • the second installation element 8 of the second fixation system 7 of the wall tie 1 to the left is installed between sides of two neighbouring wall segments, e.g. in mortar between bricks.
  • the second installation element 8 of the second fixation system 7 of the wall tie 1 to the right is installed between a top side and a bottom side of two neighbouring wall segments, e.g. in mortar between bricks.
  • the two wall ties 1 may provide anchor points for holding objects, such as cables or pipes.
  • Fig. 4 shows an example of a wall tie 1 according to the invention installed so as to connect two wall leaves 2, 3.
  • the first wall fixation system 4 provides a first cavity element 6 protruding from the top side of a part of the first wall leaf 2, e.g. from a concrete block.
  • the first fixation system further comprises a first installation element embedded in the wall leaf 2 (not shown). At least the first cavity element 6 of the first fixation system 4 may be made of metal.
  • the first fixation system 4 comprises a first mounting part 31, which is shown connected to a second mounting part 32, so as to provide a mounting connection 30.
  • the second mounting part 32 is provided by a second fixation system 7 being an elongated slab having the mounting part at a longitudinal end thereof.
  • the second mounting part 32 comprises a barbed arrangement 33 with barbs, while the first mounting part 31 comprises a loop.
  • the barbs are of a shape configured to engage with the loop so as to fix the wall leaves 2, 3 together.
  • the barbs may be bendable by an applied force so as to decrease the width of the barbed arrangement upon, so that it can be inserted through the loop hole Once inserted, the barbs may be configured so that upon release of the applied force, the barbed configuration retains original shape and a width larger than the width of the loop hole, so that the second fixation system is retained by the first fixation system and vice versa.
  • the barbed arrangement 33 of the second mounting part 32 is further shown in Fig. 5 , showing an end of the second fixation system 7.
  • the barbed mounting part 32 may comprise flexible means to provide the above effect. Additionally or alternatively, the first mounting part 31, e.g. the loop, may provide the flexible means.
  • the second fixation system 7 may preferably be configured to be installed in mortar between bricks.
  • the second fixation system 7 is made of a material, which is less heat conducting than the material of at least the first cavity element 6, such as an insulating material, e.g. plastic or the like.
  • an insulating material e.g. plastic or the like.
  • the first fixation system 4 shown in Fig. 3 further comprises a retainer part 10 having a hook arrangement 11, providing one or more hooks 12.
  • the hook arrangement provides two hooks for retaining objects 20, e.g. a pipe is shown resting in a first hook 12.
  • a second hook 12 is provided as a loop for smaller objects 20, which may be connected thereto or extended through it.
  • Fig 3 also depicts a further first fixation system 4, which comprises the same features as the already discussed first fixation system 4, but which is not connected to a second fixation system.
  • the first fixation system 4 may effectively support and retain an elongated object extending through both systems 4.
  • the first fixation system is made from a single wire or rod material, which is provided with a plurality of bends so as to form the first installation element, the first cavity element and the retainer part.
  • the first installation element is preferably contiguous with the first cavity element, and the first cavity element may preferably further be contiguous with the first retainer part.
  • the wire or rod material is made of metal and is of a diameter between 2-4 mm
  • the first fixation system 4 of Figs. 6-9 may comprise a hook arrangement 11, which is separate to the remainder of the first fixation system 4 and which may be arranged to be attached and detached form the first fixation system 4 e.g. based on whether or not the hook arrangement is needed.
  • the hook arrangement 11 of Figs. 6-9 is not contiguous with the retainer part 10.
  • the hook arrangement 11 is configured to be fixed to a retainer arm 10a of the retainer part 10 via suitable attachment solutions, such as by an attachment aperture 17 in the base of the hook arrangement 11, in which a part of the retainer arm 10a can be received and retained, as seen in Figs. 6 and 8 .
  • the attachment solution between the hook arrangement 11 and the retainer part 10 may be any suitable mechanical or adhesive attachment, and/or permanent or temporary connections.
  • Fig. 6 shows a first example of a separate hook arrangement 11.
  • the hook arrangement 11 comprises a base part 19 from which four hooks 12 extending into four different directions.
  • the hooks 12 are arranged to cooperate with the wall leaf to which they are arranged against in order to provide retaining spaces 18, as shown in Fig. 7 .
  • Fig. 8 shows a second example of a separate hook arrangement 11.
  • the hook arrangement 11 comprises a base part 19 from which four hooks 12 extending into four different directions. Two of the hooks 12 are arranged to cooperate with the wall leaf to which they are arranged against to provide retaining spaces 18, while two other hooks 12 are arranged to provide the hooks 12 and retaining spaces 18 by themselves, as shown in Fig. 9 .
  • the first fixation system 4 is similar to the first fixation system 4 of Figs. 1-5 in that the first fixation system 4 comprises a first cavity element 6 having a first mounting part 31 and a retainer part 10 extending from the first cavity element 6 in a direction away from the first cavity element 6.
  • the retainer part 10 is fitted with the hook arrangement 11 of Fig. 6 and 8 , respectively, so that the retaining spaces 19 are provided between a first hook wall 13 and the wall leaf 2 and/or the first hook wall 13 and a second hook wall 14.
  • the retaining spaces may be accessed from the side, i.e. laterally, or through retainer openings 15 between hook walls 13, 14 or between hook wall 13 and the first wall leaf 2.
  • Fig. 7 shows four similar hooks 12 extending in four different directions about the base part 19.
  • Each hook 12 comprises a first hook wall 13 attached to the base part 19 and which provides a retaining space 18 in cooperation with the first wall leaf 2.
  • the four hooks 12 provides four retainer openings 15 directed in four different directions as seen in Fig. 7 .
  • Fig. 9 shows a first hook 12 at the top of the hook arrangement 11 comprising a first hook wall 13 attached to the base part 19 and which provides a retaining space 18 in cooperation with the first wall leaf 2 with a retainer opening 15 directed upwards.
  • the hook arrangement 11 further comprises a second hook 12 next to the first hook 12 in the clockwise direction, which comprises a first hook wall 13 connected to the base part 19 and a second hook wall 14 connected to the first hook wall 13 to create a U-shaped bend and providing an outward-facing retainer opening 15 in cooperation with the base part 19.
  • the hook arrangement 11 comprises a third hook 12 similar to the second hook 12, with a first hook wall 13 attached to the base part and a second hook wall 14 connected to the first hook wall 12 in a U-shaped bend and providing an outward facing retainer opening 15 in cooperation with the base part 19.
  • the hook arrangement 11 comprises a fourth hook 12 located next to the third hook 12 in the clock-wise direction, which is similar to the first hook and comprises a first hook wall 13 attached to the base part 19 and providing a retainer space 18 in cooperation with the first wall leaf 2 and a sideways-facing retainer opening 15.
  • the hook arrangement 11 may in alternative embodiments comprise any number of hooks 12 and any combination of hook types.
  • Figs. 7 and 9 shows how an object 20, e.g. a pipe may be held in position by a hook 12.
  • the size of the retainer openings 15 may be modifiable by making the hook wall adjustable in position e.g. spring-mounted and pivotable, e.g. at a base thereof, and/or by making a hook wall in a material with suitable moulding properties.
  • the equilibrium position of the hooks 12 may sufficiently or completely close the retainer opening 15 such that all four hooks 12 can be used.
  • the hooks 12 may be arranged so that an object can be retained even in the lowermost hook 12 without opening the retainer opening 15 by the weight of the object 20.
  • the hook arrangements 11 may optionally be provided with fastening apertures 16 for accommodating screws or nails or the like, for further fastening the hook arrangement 11 to wall leaf 2.
  • the separate hook arrangement 11 may be provided in plastic, such as recycled plastics.
  • the first fixation arrangement 4 of the present embodiments shown in the figures have been described as being fixed to the first wall leaf, however, the first fixation arrangement 4 may additionally or alternatively be fixed to the second wall leaf. E.g., a mounting connection as per the present disclosure may be provided between two first fixation systems.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
EP22215965.9A 2022-01-03 2022-12-22 Mur creux avec une partie de retenue pour un tirant de mur Pending EP4206409A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA202200003 2022-01-03

Publications (1)

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EP4206409A1 true EP4206409A1 (fr) 2023-07-05

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Application Number Title Priority Date Filing Date
EP22215965.9A Pending EP4206409A1 (fr) 2022-01-03 2022-12-22 Mur creux avec une partie de retenue pour un tirant de mur

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EP (1) EP4206409A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2257893A1 (es) * 2003-04-08 2006-08-01 Josep Maria Adell Argiles Anclaje multiuso para muros armados o sin armar.
US20150000225A1 (en) * 2013-06-28 2015-01-01 Mitek Holdings, Inc. Vertically adjustable disengagement prevention veneer tie and anchoring system utilizing the same
KR102079776B1 (ko) * 2017-08-10 2020-02-21 세라코(주) 다중 록킹존 형성을 통한 벽돌벽체 내진보강 장치 및 그 시공 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2257893A1 (es) * 2003-04-08 2006-08-01 Josep Maria Adell Argiles Anclaje multiuso para muros armados o sin armar.
US20150000225A1 (en) * 2013-06-28 2015-01-01 Mitek Holdings, Inc. Vertically adjustable disengagement prevention veneer tie and anchoring system utilizing the same
KR102079776B1 (ko) * 2017-08-10 2020-02-21 세라코(주) 다중 록킹존 형성을 통한 벽돌벽체 내진보강 장치 및 그 시공 방법

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