EP3382119B1 - Cavity wall tie and assembly with such a wall tie - Google Patents
Cavity wall tie and assembly with such a wall tie Download PDFInfo
- Publication number
- EP3382119B1 EP3382119B1 EP18164356.0A EP18164356A EP3382119B1 EP 3382119 B1 EP3382119 B1 EP 3382119B1 EP 18164356 A EP18164356 A EP 18164356A EP 3382119 B1 EP3382119 B1 EP 3382119B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- cavity wall
- wall tie
- anchoring
- shaft section
- 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.)
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Links
- 238000004873 anchoring Methods 0.000 claims description 108
- 230000007704 transition Effects 0.000 claims description 21
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 98
- 239000000047 product Substances 0.000 description 15
- 239000004575 stone Substances 0.000 description 14
- 238000005452 bending Methods 0.000 description 13
- 239000012790 adhesive layer Substances 0.000 description 10
- 239000011324 bead Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000011449 brick Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000005096 rolling process Methods 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
Definitions
- the invention relates to an air layer anchor made of metal for connecting an inner masonry shell to an outer masonry shell arranged at a distance from the inner masonry shell, comprising a shank section which essentially bridges the distance between the shells, a first anchoring section formed on the shank section at one end for anchoring the Air layer anchor in a joint of an inner masonry shell and a second anchoring section formed on the shaft section at its other end for anchoring the air layer anchor in a joint of an outer masonry shell, a transition section being provided between the anchoring sections and the shaft section.
- Air-layer anchors are used to connect the two masonry shells of a double-shell masonry.
- an outer, non-load-bearing outer shell is arranged in front of an inner, load-bearing inner shell.
- the space between the two masonry shells can either be left free in order to ventilate the outer masonry or be completely or partially filled with an insulating material.
- Air layer anchors are used to connect the outer masonry shell to the inner masonry shell.
- such an air layer anchor has an anchoring section in each case, which typically engages in a masonry joint and is anchored therein by the adhesive or mortar used.
- Such an air layer anchor is off DE 297 18 804 U1 known.
- the air layer anchor is placed with its anchoring section assigned to this masonry shell on an upper stone layer coated with adhesive or mortar, before this anchoring section is used to fix the air layer anchor through a stone above located position is fixed.
- the adhesive or mortar has hardened, the air layer anchor is anchored in the adhesive or mortar layer.
- EP 1 584 763 A1 also discloses an air layer anchor of the aforementioned type.
- a number of stiffening structures in the form of beads are introduced in a transition section between the shaft and anchoring section in order to stiffen this transition section.
- Air-layer dowel anchors are also known in which the first anchoring section provided for anchoring in the first masonry shell is not necessarily inserted into a layer of adhesive or mortar, but is inserted into a drill hole filled with mortar and previously filled into a stone of the inner masonry shell.
- Such air layer anchors are made from a sheet metal plate.
- the round shaft section is formed by rolling the sheet metal blank around its longitudinal axis.
- the anchoring sections have a greater width than the shaft section.
- the one anchoring section often the one provided for anchoring the air layer anchor in the outer masonry shell, has been created by flattening the round end section of the shaft section. For this reason, such an anchoring section is wider than the shaft section. If the air layer anchor is an air layer dowel anchor, the other anchoring section can also be designed in this way.
- the relevant anchoring section is made as thin as possible. Therefore, this anchoring section is not created by flattening the shaft section, but this anchoring section is part of the original plate which was not reshaped to form the rounded shaft section.
- thin anchoring sections are particularly desired when building inner masonry shells, in which the individual stones are connected to one another with a thin layer of adhesive.
- Both anchoring sections can have structures that increase pull-out force, such as, for example, punched-out edges or openings made therein.
- air layer anchors have proven themselves and have been used for decades.
- When installing the air layer anchors in the inner masonry shell especially if the air layer anchors are to be anchored in the joints of the inner masonry shell, make sure that the entire anchoring section is embedded in the adhesive or mortar of the joint.
- the necessary attention is often not paid to this, with the result that the air layer anchors protrude from the inner masonry shell in different lengths.
- the air layer anchors are fixed, as has already been shown above, until the adhesive or mortar hardens by a stone of the next stone layer placed on the anchoring section of the air layer anchor engaging in the adhesive or mortar.
- the air layer anchors are set, it is necessary to bend them down so that they do not protrude unnecessarily from the inner masonry shell in order to avoid injuries, until the outer masonry shell is erected. Only when the outer masonry shell is erected are the air layer anchors bent back into their intended horizontal extension. It is not unproblematic that the two bending processes typically do not take place on one and the same bending axis but on bending axes that are spaced apart from one another, so that these two bends result in a cranking. This is undesirable since tensile and shear loads can lead to the destruction of this S-shaped crank.
- the invention is therefore based on the object of improving a generic air layer anchor with regard to the disadvantages mentioned.
- an air layer anchor of the generic type mentioned at the outset which is L-shaped in the delivery state, since the first anchoring section is angled with respect to the longitudinal extension of the shaft section, the zone of the angling being delimited by a stiffening structure on its side facing the shaft section .
- the first anchoring section specifically the one which is provided for anchoring the air layer anchor in the inner masonry shell, is already angled by the manufacturer in relation to the shaft section.
- Such an air layer anchor is therefore L-shaped in the delivery state. Since this is done by the manufacturer, the bends or the resulting edges are always in the same place for each air layer anchor of a type.
- This defined angled zone, through which the angled anchoring section is connected to the other sections of the air layer anchor can be designed with a relatively small radius, this radius typically being less than 3 mm - 4 mm. According to one embodiment, a radius of approximately 2 mm is provided.
- the side of the bend facing the shaft section is delimited by a stiffening structure.
- this stiffening structure is provided by the adjacent transition section, which is formed by the beginning transition into the rounded shaft shape, which represents a stiffening opposite the flat anchoring section. If the first anchoring section has a single-layer design, the transition section begins with the material being rolled up in the direction of the shaft section.
- an air layer anchor is provided which is attached to an adhesive or mortar layer of an upper brick layer of the inner masonry shell with it Anchoring section can be placed without this falling down.
- an air layer anchor is suspended on such an adhesive or mortar layer.
- no stone placed on this anchoring section is required to fix the air layer anchor. Consequently, due to the thus simplified installation of these air layer anchors, an inner masonry shell can be erected in a significantly shorter time than was possible when using conventional air layer anchors.
- the pre-made angle by which the first anchoring section is angled with respect to the shaft section also provides an assembly jig for defining the installation position, namely how far the shaft section is to be brought up to the outside of the inner masonry shell.
- the air layer anchor is brought up to the outside of the inner masonry shell until either the outer surface of the shaft section adjoins the inside of the inner masonry shell, which is the case at an angle of 90 degrees or about 90 degrees, or until the inner radius of the bend meets the upper one reaches the outer edge of that stone layer on which the adhesive or mortar layer of the anchoring section is to be placed or pressed.
- An embodiment is considered advantageous in which one of the two flat sides of the anchoring section provided for anchoring in the inner masonry shell is in alignment with the outer surface of the shaft section.
- the material is rolled up until the end faces of the rolled up sections of the metal blank meet at the end of the transition section.
- the anchoring section is angled in the direction of that side which is aligned with the lateral surface of the shaft section. This allows this anchoring section to be installed in a joint in the inner masonry shell up to the bend.
- the bend which is limited in the direction of the shaft section by a stiffening structure, for example the beginning of the transition section, is on its side facing the anchoring section by the stones of the inner masonry shell or the adhesive, which lie one on top of the other and are connected to one another by an adhesive or mortar layer limited by the mortar of the joint.
- the anchoring section is angled in the other direction compared to the embodiment described above. Then the bend is limited on its side facing the anchoring section by a stiffening structure, for example a transverse bead, so that it is ensured in this way that the bending back of the air layer anchor into its intended horizontal extension also in the area of the bend (bend ) takes place in which the anchoring section is angled relative to the shaft section.
- a stiffening structure for example a transverse bead
- Such an air layer anchor is typically made from a stainless steel that has sufficient deformability, in particular ductility.
- a chromium-nickel steel with added molybdenum is suitable for this purpose.
- the intermediate product 1 shown for forming an air layer anchor comprises a central shaft section 2 and two anchoring sections 3, 4 formed thereon. Each anchoring section 3, 4 is connected to the shaft section 2 with a transition section 5, 6 interposed.
- the preliminary product 1 is made from a Cr-Ni steel with an addition of Mo.
- the material for the air layer anchor does not necessarily have to be a Cr-Ni steel with the addition of Mo. Rather, it can be any suitable material that has a sufficient quality.
- the starting product is a corresponding board with a thickness of about 0.5 mm.
- the anchoring section 3 has a single layer. In the Figure 1 The recognizable width of the anchoring section 3 represents the width of the board. To form the shaft section 2, the long sides of the board have been rolled up.
- the shaft section 2 is thus designed as a tubular section.
- the joint of the two rolled-up sections which abut one another with their long sides is identified in the figure with the reference number 7.
- the relevant part of the previously round shaft section 2 is flattened so that the anchoring section 4 also has a greater width than the shaft section 2.
- 3 clamping perforations 8 are made in the anchoring section. These are designed as holes, with the hole edge area embossed to stiffen and improve the bracing (in Figure 2 not shown).
- the anchoring section 4 several semicircular cutouts 9 have been introduced as clamping structures at the edge. The clamping perforations 8 and the punchings 9 support the clamping of the anchoring sections 3 and 4 with an adhesive or mortar.
- transition section 5 between the anchoring section 3 and the shaft section 2 begins immediately with a doubling of material, which results in a distinct stiffening compared to the otherwise tab-like anchoring section 3.
- Figure 2 shows the preliminary product 1 in a side view. From this it can be seen that the in Figure 1 The lower flat side 10 of the anchoring section 3 shown is aligned with the lateral surface 11 of the shaft section 2. You can clearly see in Figure 2 also the flattening of the anchoring section 4 with respect to the shaft section 2.
- an air layer anchor 12 is produced from the preliminary product 1 by the anchoring section 3, which is provided for engaging in a joint of an inner masonry shell, being angled with respect to the shaft section 2, in the embodiment shown by about 90 degrees (see Fig. Figure 3 ).
- the air layer anchor 12 is shown in a side view. This bending has been carried out by the manufacturer, using appropriate tools.
- the anchoring section 3 is therefore straight and not influenced by the bending process for forming the bend 13.
- the anchoring section 3 is used to hang the same on the upper brick layer of an inner masonry shell that is being built.
- the bend 13 is placed adjacent to the end of the transition section 5, which is used as a stiffening structure, pointing towards the anchoring section 3.
- the bend is designed with a radius which in the illustrated embodiment is approximately 2 mm.
- the radius of the bend 13 is selected so that after the bend 13 has been formed, the air layer anchor 12 in the area of the bend 13 zone can also be brought back into its intended straight extension, in which the air layer anchor 12 then corresponds to the preliminary product 1.
- FIG 4 shows the air layer anchor 12, which is introduced with its anchoring section 3 in an adhesive layer 14 on the upper side of an upper brick layer 15 of an inner masonry shell 16 which is under construction.
- the anchoring section 3 of the air layer anchor 12 is merely placed on the adhesive layer 14 or is slightly pressed into it. In this way alone, the air layer anchor 12 is fixed and does not need to be additionally held by a worker until a further stone has been placed on the adhesive layer 14 above the anchoring section 3. This results in an acceleration in the time required to erect the inner masonry shell 16.
- the air-layer anchors 12 protrude from the outside with their shaft section and their anchoring section 4 provided for engaging an outer masonry shell 17 of the inner masonry shell 16, so that the otherwise sometimes necessary step of bending the air layer anchors 12 is also avoided.
- the representation of the Figure 4 shows that the shaft section 2, which is angled with respect to the anchoring section 3, also provides a stop, by means of which an insertion jig is formed.
- the shank section 2 abuts with its outer surface 11 on the outside 17 of the already erected masonry shell 16 and thus defines the insertion depth of the anchoring section 3 in the transverse direction to the longitudinal extension of the inner masonry shell 16.
- This assembly jig ensures that all air layer anchors 12, which are in the inner masonry shell 16 are to be anchored, with their anchoring section 3 engage equally far into the adhesive layer 14 in the transverse direction of the masonry shell 16.
- the stiffening structure formed by the transition section 5 limits the bend 13 on its side facing the shaft section 2 with the result that, although a certain strain hardening has occurred during the bending process to create the air layer anchor 12 from the preliminary product 1, bending back only occurs on the Angling 13 can take place.
- Figure 5 shows the air layer anchor 12 in its intended position so that its anchoring section 4 can engage in an outer masonry shell.
- the angling of the anchoring portion 3 is opposite to Shaft section 2 designed so that the flat side 10 of the anchoring section 3 encloses the aforementioned angle of approximately 90 degrees with the jacket surface 11.
- FIG. 6 shows the anchoring section 3.1 with the transition section 5.1 adjoining it to the shaft section 2.1 of a further preliminary product 1.1 for forming an air layer anchor 12.1.
- the preliminary product 1.1 has the same structure as the preliminary product 1 of the above exemplary embodiment. Differences are explained below.
- the preliminary product 1.1 it is provided that its anchoring section 3.1 is angled in the other direction with respect to the shaft section 2.1, as shown in the side view of FIG Figure 7 is shown.
- the area of the bend 13.1. is in plan view of Figure 6 of the intermediate product 1.1 identified with the reference symbol 13.1.
- the bend 13.1 has also been created by the manufacturer with a corresponding bending tool.
- a bead 18 is embossed in the anchoring section 3.1, namely in the illustrated embodiment in Direction towards the transition section 5.1.
- the bead 18 has a T-shape, its section running transversely to the longitudinal extension of the anchoring section 3.1 representing the delimitation of the bend 13.1.
- the bead 18 represents a stiffening structure to limit the zone of the bend 13.1 in the direction of the anchoring leg 3.1.
- FIG 7 shows the anchoring leg 3.1 inserted into an adhesive layer 14.1.
- This L-shaped air layer anchor 12.1 also forms a stop on the outside of the masonry shell 16.1 with the jacket surface 11.1 of its shaft section 2.1. If one or more further stone layers have been placed on the adhesive layer 14.1 and the adhesive layer 14.1 has hardened, the air layer anchor 12.1 is when the outer masonry shell is erected. bent up to the bend 13.1 in its intended horizontal extension.
- the area of the bend 13.1 is on the one hand due to the stiffening effect of the transition section 5.1, as in the embodiment of Figures 1 to 5 described, limited. In the direction of the anchoring leg 3.1, the area of the angled portion 13.1 is delimited by the bead 18 so that bending can actually only take place in this zone.
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- Electromagnetism (AREA)
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Description
Die Erfindung betrifft einen Luftschichtanker aus Metall zum Verbinden einer inneren Mauerwerkschale mit einer äußeren, mit Abstand zu der inneren Mauerwerkschale angeordneten Mauerwerkschale, umfassend einen im Wesentlichen den Abstand der Mauerschalen überbrückenden Schaftabschnitt, einen an den Schaftabschnitt an seinem einen Ende angeformten ersten Verankerungsabschnitt zum Verankern des Luftschichtankers in einer Fuge einer inneren Mauerwerkschale und einen an den Schaftabschnitt an seinem anderen Ende angeformten zweiten Verankerungsabschnitt zum Verankern des Luftschichtankers in einer Fuge einer äußeren Mauerwerkschale, wobei zwischen den Verankerungsabschnitten und dem Schaftabschnitt jeweils ein Übergangsabschnitt vorgesehen ist.The invention relates to an air layer anchor made of metal for connecting an inner masonry shell to an outer masonry shell arranged at a distance from the inner masonry shell, comprising a shank section which essentially bridges the distance between the shells, a first anchoring section formed on the shank section at one end for anchoring the Air layer anchor in a joint of an inner masonry shell and a second anchoring section formed on the shaft section at its other end for anchoring the air layer anchor in a joint of an outer masonry shell, a transition section being provided between the anchoring sections and the shaft section.
Luftschichtanker werden zum Verbinden der beiden Mauerwerkschalen eines zweischaligen Mauerwerks eingesetzt. Bei einem solchen Mauerwerk ist eine äußere, nicht tragende Außenschale vor einer inneren, tragenden Innenschale angeordnet. Der zwischen den beiden Mauerwerkschalen befindliche Zwischenraum kann entweder freigelassen sein, um das äußere Mauerwerk zu hinterlüften oder ganz oder teilweise mit einem Dämmmaterial verfüllt sein. In vielen Fällen befindet sich in dem Mauerwerkschalenzwischenraum benachbart zu der inneren Mauerwerkschale eine Dämmstoffschicht und außenseitig zu dieser eine Luftschicht, sodass die äußere Mauerwerkschale innenseitig an die Luftschicht grenzt. Luftschichtanker werden zum Anschließen der äußeren Mauerwerkschale an die innere Mauerwerkschale eingesetzt. Zum Anschluss an die jeweilige Mauerwerkschale verfügt ein solcher Luftschichtanker über jeweils einen Verankerungsabschnitt, der typischerweise in eine Mauerwerksfuge eingreift und darin durch den eingesetzten Kleber oder Mörtel verankert ist. Ein solcher Luftschichtanker ist aus
Wenn die äußere Mauerwerkschale errichtet wird, wird der andere Verankerungsabschnitt in einer Fuge der äußeren Mauerwerkschale in analoger Weise festgesetzt. Bekannt sind auch Luftschichtdübelanker, bei denen der zur Verankerung in der ersten Mauerwerkschale vorgesehene erste Verankerungsabschnitt nicht notwendigerweise in eine Kleber- oder Mörtelschicht eingesetzt wird, sondern in ein mit Mörtel ausgefülltes, zuvor in einen Stein der inneren Mauerwerkschale gefülltes Bohrloch eingesetzt wird.When the outer masonry shell is erected, the other anchoring section is fixed in a joint in the outer masonry shell in an analogous manner. Air-layer dowel anchors are also known in which the first anchoring section provided for anchoring in the first masonry shell is not necessarily inserted into a layer of adhesive or mortar, but is inserted into a drill hole filled with mortar and previously filled into a stone of the inner masonry shell.
Derartige Luftschichtanker sind aus einer Blechplatine hergestellt. Der runde Schaftabschnitt wird durch Einrollen der Blechplatine um ihre Längsachse ausgebildet. Die Verankerungsabschnitte weisen eine größere Breite auf als der Schaftabschnitt. Typischerweise ist der eine Verankerungsabschnitt, oftmals der zum Verankern des Luftschichtankers in der äußeren Mauerwerkschale vorgesehene, durch eine Abplattung des runden Endabschnittes des Schaftabschnittes erstellt worden. Aus diesem Grunde ist ein solcher Verankerungsabschnitt breiter als der Schaftabschnitt. Handelt es sich bei dem Luftschichtanker um einen Luftschichtdübelanker, kann auch der andere Verankerungsabschnitt auf diese Weise ausgebildet sein.Such air layer anchors are made from a sheet metal plate. The round shaft section is formed by rolling the sheet metal blank around its longitudinal axis. The anchoring sections have a greater width than the shaft section. Typically the one anchoring section, often the one provided for anchoring the air layer anchor in the outer masonry shell, has been created by flattening the round end section of the shaft section. For this reason, such an anchoring section is wider than the shaft section. If the air layer anchor is an air layer dowel anchor, the other anchoring section can also be designed in this way.
Wenn der Luftschichtanker in einer Fuge der inneren Mauerwerkschale festgesetzt werden soll, ist der diesbezügliche Verankerungsabschnitt möglichst dünn ausgeführt. Daher wird dieser Verankerungsabschnitt nicht durch eine Abplattung des Schaftabschnittes erstellt, sondern dieser Verankerungsabschnitt ist Teil der ursprünglichen Platine, die nicht zur Ausbildung des rundlichen Schaftabschnittes umgeformt worden ist. Diesbezüglich dünne Verankerungsabschnitte werden vor allem bei der Errichtung von inneren Mauerwerkschalen gewünscht, bei denen die einzelnen Steine mit einer dünnen Kleberschicht miteinander verbunden werden.If the air layer anchor is to be fixed in a joint in the inner masonry shell, the relevant anchoring section is made as thin as possible. Therefore, this anchoring section is not created by flattening the shaft section, but this anchoring section is part of the original plate which was not reshaped to form the rounded shaft section. In this regard, thin anchoring sections are particularly desired when building inner masonry shells, in which the individual stones are connected to one another with a thin layer of adhesive.
Beide Verankerungsabschnitte können Auszugskraft erhöhende Strukturen aufweisen, wie beispielsweise randliche Ausstanzungen oder darin eingebrachte Durchbrechungen. Zwischen den Verankerungsabschnitten und dem Schaftabschnitt befindet sich jeweils ein Übergangsabschnitt, in dem die Formänderung zwischen den flachen Verankerungsabschnitten und dem rundlichen Schaftabschnitt erfolgt.Both anchoring sections can have structures that increase pull-out force, such as, for example, punched-out edges or openings made therein. Between the anchoring sections and the shaft section there is a respective transition section in which the change in shape between the flat anchoring sections and the rounded shaft section takes place.
Derartige Luftschichtanker haben sich bewährt und werden seit Jahrzehnten eingesetzt. Beim Einbau der Luftschichtanker in die innere Mauerwerkschale, vor allem wenn die Luftschichtanker in den Fugen der inneren Mauerwerkschale verankert werden sollen, ist darauf zu achten, dass möglichst der gesamte Verankerungsabschnitt in dem Kleber oder Mörtel der Fuge eingebettet ist. Bei Einrichten der Mauerwerkschale wird oftmals hierauf nicht das notwendige Augenmerk gelegt mit dem Ergebnis, dass die Luftschichtanker in einer unterschiedlichen Länge von der inneren Mauerwerkschale abragen. Ein Fixieren der Luftschichtanker erfolgt, wie dieses bereits vorstehend aufgezeigt ist, bis zum Aushärten des Klebers oder des Mörtels durch einen auf den in den Kleber oder Mörtel eingreifenden Verankerungsabschnitt des Luftschichtankers gesetzten Stein der nächsten Steinlage.Such air layer anchors have proven themselves and have been used for decades. When installing the air layer anchors in the inner masonry shell, especially if the air layer anchors are to be anchored in the joints of the inner masonry shell, make sure that the entire anchoring section is embedded in the adhesive or mortar of the joint. When setting up the masonry shell, the necessary attention is often not paid to this, with the result that the air layer anchors protrude from the inner masonry shell in different lengths. The air layer anchors are fixed, as has already been shown above, until the adhesive or mortar hardens by a stone of the next stone layer placed on the anchoring section of the air layer anchor engaging in the adhesive or mortar.
Sind die Luftschichtanker gesetzt, ist es erforderlich, diese nach unten abzubiegen, damit diese von der inneren Mauerwerkschale zur Vermeidung von Verletzungen nicht unnötig hervorstehen, und zwar solange bis die äußere Mauerwerkschale errichtet wird. Erst wenn die äußere Mauerwerkschale errichtet wird, werden die Luftschichtanker wieder in ihre bestimmungsgemäße horizontale Erstreckung gebogen. Nicht unproblematisch ist, dass die beiden Biegevorgänge typischerweise nicht an ein und derselben Biegeachse sondern an voneinander beabstandeten Biegeachsen erfolgen, sodass durch diese beiden Biegungen eine Verkröpfung entsteht. Dieses ist unerwünscht, da hierdurch Zug- und Schubbelastungen zu einer Zerstörung dieser S-förmigen Verkröpfung führen können.If the air layer anchors are set, it is necessary to bend them down so that they do not protrude unnecessarily from the inner masonry shell in order to avoid injuries, until the outer masonry shell is erected. Only when the outer masonry shell is erected are the air layer anchors bent back into their intended horizontal extension. It is not unproblematic that the two bending processes typically do not take place on one and the same bending axis but on bending axes that are spaced apart from one another, so that these two bends result in a cranking. This is undesirable since tensile and shear loads can lead to the destruction of this S-shaped crank.
Mitunter wird bei dem Einbau derartiger Luftschichtanker auch empfohlen, den für die Verankerung in der inneren Mauerwerkschale vorgesehene Verankerungsabschnitt vor dem Einbau manuell etwas abzuwinkeln und den Luftschichtanker erst dann in der vorbeschriebenen Art und Weise zu verbauen. Hierbei treten prinzipiell dieselben Nachteile auf, wie bei der vorbeschriebenen Ausgestaltung. Zudem kommt hinzu, dass durch dieses manuelle Biegen der Ort der Biegung nicht sicher vorbestimmt ist.When installing such air layer anchors, it is sometimes also recommended to manually bend the anchoring section provided for anchoring in the inner masonry shell a little before installation and the Only then should the air-layer anchor be installed in the manner described above. In principle, the same disadvantages occur here as in the case of the embodiment described above. In addition, this manual bending means that the location of the bend is not reliably predetermined.
Ausgehend von diesem diskutierten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, einen gattungsgemäßen Luftschichtanker in Bezug auf die angesprochenen Nachteile zu verbessern.On the basis of this discussed prior art, the invention is therefore based on the object of improving a generic air layer anchor with regard to the disadvantages mentioned.
Gelöst wird diese Aufgabe erfindungsgemäß durch einen eingangs genannten, gattungsgemäßen Luftschichtanker, der im Auslieferungszustand L-förmig ist, da der erste Verankerungsabschnitt gegenüber der Längserstreckung des Schaftabschnittes abgewinkelt ist, wobei die Zone der Abwinklung an ihrer zu dem Schaftabschnitt weisenden Seite durch eine Versteifungsstruktur begrenzt ist.This object is achieved according to the invention by an air layer anchor of the generic type mentioned at the outset, which is L-shaped in the delivery state, since the first anchoring section is angled with respect to the longitudinal extension of the shaft section, the zone of the angling being delimited by a stiffening structure on its side facing the shaft section .
Bei diesem Luftschichtanker ist der erste Verankerungsabschnitt, und zwar derjenige, der zur Verankerung des Luftschichtankers in der inneren Mauerwerkschale vorgesehen ist, bereits herstellerseitig abgewinkelt gegenüber dem Schaftabschnitt. Ein solcher Luftschichtanker ist daher im Auslieferungszustand L-förmig. Da dieses herstellerseitig vorgenommen wird, befinden sich die Biegungen bzw. die hierdurch ausgebildeten Kanten bei jedem Luftschichtanker eines Typs immer an derselben Stelle. Diese definierte Abwinklungszone, durch die der abgekantete Verankerungsabschnitt mit den übrigen Abschnitten des Luftschichtankers verbunden ist, kann mit einem relativ geringen Radius ausgeführt werden, wobei dieser Radius typischerweise kleiner als 3 mm - 4 mm ist. Gemäß einer Ausgestaltung ist ein Radius von etwa 2 mm vorgesehen. Bei diesem Luftschichtanker ist die zum Schaftabschnitt weisende Seite der Biegung durch eine Versteifungsstruktur begrenzt. Typischerweise wird diese Versteifungsstruktur durch den benachbarten Übergangsabschnitt bereitgestellt, der durch den beginnenden Übergang in die rundliche Schaftform, der gegenüber dem flachen Verankerungsabschnitt eine Versteifung darstellt, gebildet. Ist der erste Verankerungsabschnitt einlagig ausgeführt, beginnt der Übergangsabschnitt mit der Materialeinrollung in Richtung zum Schaftabschnitt.In the case of this air layer anchor, the first anchoring section, specifically the one which is provided for anchoring the air layer anchor in the inner masonry shell, is already angled by the manufacturer in relation to the shaft section. Such an air layer anchor is therefore L-shaped in the delivery state. Since this is done by the manufacturer, the bends or the resulting edges are always in the same place for each air layer anchor of a type. This defined angled zone, through which the angled anchoring section is connected to the other sections of the air layer anchor, can be designed with a relatively small radius, this radius typically being less than 3 mm - 4 mm. According to one embodiment, a radius of approximately 2 mm is provided. In this air layer anchor, the side of the bend facing the shaft section is delimited by a stiffening structure. Typically, this stiffening structure is provided by the adjacent transition section, which is formed by the beginning transition into the rounded shaft shape, which represents a stiffening opposite the flat anchoring section. If the first anchoring section has a single-layer design, the transition section begins with the material being rolled up in the direction of the shaft section.
Durch die Abwinklung dieses ersten Verankerungsabschnittes gegenüber dem Schaftabschnitt, wobei die Abwinklung typischerweise mit einem Winkel von zumindest 80 Grad, insbesondere von etwa 90 Grad ausgeführt ist, ist ein Luftschichtanker bereitgestellt, der auf eine Kleber- oder Mörtelschicht einer oberen Steinlage der inneren Mauerwerkschale mit diesem Verankerungsabschnitt aufgelegt werden kann, ohne dass dieser herabfällt. Mithin wird ein solcher Luftschichtanker auf einer solchen Klebe- oder Mörtellage aufgehängt. Damit ist zum Fixieren des Luftschichtankers kein auf diesen Verankerungsabschnitt aufgelegter Stein erforderlich. Folglich kann aufgrund des somit vereinfachten Einbaus dieser Luftschichtanker eine innere Mauerwerkschale in deutlich kürzerer Zeit errichtet werden als dieses bei der Verwendung von herkömmlichen Luftschichtankern möglich war.By angling this first anchoring section with respect to the shaft section, the angling typically being carried out at an angle of at least 80 degrees, in particular about 90 degrees, an air layer anchor is provided which is attached to an adhesive or mortar layer of an upper brick layer of the inner masonry shell with it Anchoring section can be placed without this falling down. As a result, such an air layer anchor is suspended on such an adhesive or mortar layer. Thus, no stone placed on this anchoring section is required to fix the air layer anchor. Consequently, due to the thus simplified installation of these air layer anchors, an inner masonry shell can be erected in a significantly shorter time than was possible when using conventional air layer anchors.
Durch die herstellerseitig vorgefertigte Abwinklung, durch die der erste Verankerungsabschnitt gegenüber dem Schaftabschnitt abgewinkelt ist, ist zugleich eine Montagelehre zum Definieren der Einbaustellung bereitgestellt und zwar wie weit der Schaftabschnitt an die Außenseite der inneren Mauerwerkschale heranzuführen ist. Herangeführt wird der Luftschichtanker an die Außenseite der inneren Mauerwerkschale, bis entweder die Mantelfläche des Schaftabschnittes an die Innenseite der inneren Mauerwerkschale grenzt, was bei einem Winkel von 90 Grad oder etwa 90 Grad der Fall ist, oder bis der innere Radius der Biegung an die obere außenliegende Kante derjenigen Steinlage gelangt, auf die dessen Kleber- oder Mörtellage der Verankerungsabschnitt aufgelegt bzw. eingedrückt werden soll. Dieses gewährleistet, dass aufgrund des vorgegebenen Ortes der Abwinklung und unter Ausnutzung der durch die übrigen Bestandteile des Luftschichtankers bereitgestellten Montagelehre die Verankerungsabschnitte dieser Luftschichtanker alle gleich tief in die Fuge zwischen zwei Steinen eingreifen. Bei der späteren Verwendung ragen sodann alle Luftschichtanker in derselben Länge von der Außenseite der inneren Mauerwerkschale ab.The pre-made angle by which the first anchoring section is angled with respect to the shaft section also provides an assembly jig for defining the installation position, namely how far the shaft section is to be brought up to the outside of the inner masonry shell. The air layer anchor is brought up to the outside of the inner masonry shell until either the outer surface of the shaft section adjoins the inside of the inner masonry shell, which is the case at an angle of 90 degrees or about 90 degrees, or until the inner radius of the bend meets the upper one reaches the outer edge of that stone layer on which the adhesive or mortar layer of the anchoring section is to be placed or pressed. This ensures that due to the predetermined location of the bend and using the assembly jig provided by the other components of the air layer anchor, the anchoring sections of these air layer anchors all engage equally deep into the joint between two stones. When used later, all air layer anchors then protrude the same length from the outside of the inner masonry shell.
Als vorteilhaft wird eine Ausgestaltung angesehen, bei der eine der beiden Flachseiten des zur Verankerung in der inneren Mauerwerkschale vorgesehenen Verankerungsabschnittes mit der Mantelfläche des Schaftabschnittes fluchtet. Dieses gilt insbesondere für einen Verankerungsabschnitt, der einlagig ausgeführt ist. Im Übergangsabschnitt zwischen diesem Verankerungsabschnitt und dem Schaftabschnitt beginnt die Materialeinrollung, bis am Ende des Übergangsabschnittes die Stirnseiten der eingerollten Abschnitte der Metallplatine aneinanderstoßen. Bei einer solchen Ausgestaltung ist in einer ersten Ausführungsform der Verankerungsabschnitt in Richtung zu derjenigen Seite abgewinkelt, die mit der Mantelfläche des Schaftabschnittes fluchtet. Dies erlaubt einen Einbau dieses Verankerungsabschnittes in eine Fuge der inneren Mauerwerkschale bis zur Biegung. Somit ist die Biegung, die in Richtung zum Schaftabschnitt durch eine Versteifungsstruktur, beispielsweise den Beginn des Übergangsabschnittes begrenzt ist, an ihrer zu dem Verankerungsabschnitt weisenden Seite durch die übereinanderliegenden und durch eine Kleber- oder Mörtelschicht miteinander verbundene Steine der inneren Mauerwerkschale bzw. dem Kleber oder dem Mörtel der Fuge begrenzt. In einem solchen Fall ist es grundsätzlich nicht erforderlich, dass die Abwinklung auch an ihrer zum Verankerungsabschnitt weisenden Seite eine Versteifungsstruktur aufweist, da durch den vorbeschriebenen Einbau dieses Verankerungsabschnittes die Zone der Rückbiegung eingegrenzt ist, und zwar auf die Zone der Abwinklung, mit der der Verankerungsabschnitt gegenüber dem Schaftabschnitt abgewinkelt ist. Dadurch ist gewährleistet, dass keine unerwünschten Verkröpfungen entstehen.An embodiment is considered advantageous in which one of the two flat sides of the anchoring section provided for anchoring in the inner masonry shell is in alignment with the outer surface of the shaft section. This applies in particular to an anchoring section that is executed in one layer. In the transition section between this anchoring section and the shaft section, the material is rolled up until the end faces of the rolled up sections of the metal blank meet at the end of the transition section. In such a configuration, in a first embodiment, the anchoring section is angled in the direction of that side which is aligned with the lateral surface of the shaft section. This allows this anchoring section to be installed in a joint in the inner masonry shell up to the bend. Thus, the bend, which is limited in the direction of the shaft section by a stiffening structure, for example the beginning of the transition section, is on its side facing the anchoring section by the stones of the inner masonry shell or the adhesive, which lie one on top of the other and are connected to one another by an adhesive or mortar layer limited by the mortar of the joint. In such a case, it is basically not necessary for the bend to also have a stiffening structure on its side facing the anchoring section, since the above-described installation of this anchoring section delimits the zone of the bend back, specifically to the zone of the bend with which the anchoring section is angled relative to the shaft portion. This ensures that no unwanted cranking occurs.
Gemäß einer anderen Ausgestaltung ist der Verankerungsabschnitt gegenüber dem zuvor beschriebenen Ausführungsbeispiel in die andere Richtung abgewinkelt. Dann ist die Abwinklung an ihrer zu dem Verankerungsabschnitt weisenden Seite durch eine Versteifungsstruktur, beispielsweise eine quer verlaufende Sicke, begrenzt, sodass auf diese Weise sichergestellt ist, dass das Rückbiegen des Luftschichtankers in seine zur Verwendung vorgesehene horizontale Erstreckung ebenfalls in der Zone der Abkantung (Abwinklung) erfolgt, in der der Verankerungsabschnitt gegenüber dem Schaftabschnitt abgewinkelt ist.According to another embodiment, the anchoring section is angled in the other direction compared to the embodiment described above. Then the bend is limited on its side facing the anchoring section by a stiffening structure, for example a transverse bead, so that it is ensured in this way that the bending back of the air layer anchor into its intended horizontal extension also in the area of the bend (bend ) takes place in which the anchoring section is angled relative to the shaft section.
Ein solcher Luftschichtanker ist typischerweise aus einem Edelstahl hergestellt, der eine hinreichende Verformbarkeit, insbesondere Duktilität, aufweist. Geeignet hierzu ist beispielsweise ein Chrom-Nickel-Stahl mit Molybdänzusatz.Such an air layer anchor is typically made from a stainless steel that has sufficient deformability, in particular ductility. For example, a chromium-nickel steel with added molybdenum is suitable for this purpose.
Nachfolgend ist die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren beschrieben. Es zeigen:
- Fig. 1:
- Eine Draufsicht auf ein Vorprodukt zur Ausbildung eines erfindungsgemäßen Luftschichtankers,
- Fig. 2:
- eine Seitenansicht des Vorproduktes zum Ausbilden eines Luftschichtankers der
Figur 1 , - Fig. 3:
- der aus dem
Vorprodukt der Figuren 1 und 2 erstellte erfindungsgemäße Luftschichtanker in einer Seitenansicht, - Fig. 4:
- der auf die oberste Steinlage einer inneren Mauerwerkschale aufgehängte Luftschichtanker der
Figur 3 , - Fig. 5:
- eine Darstellung des in der inneren Mauerwerkschale verankerten Luftschichtankers, aufgebogen in seine horizontale Benutzungsstellung
- Fig. 6:
- eine Draufsicht auf einen Abschnitt eines Luftschichtankers als Vorprodukt gemäß einem weiteren Ausführungsbeispiel und
- Fig. 7:
- der Luftschichtanker der
Figur 6 eingebracht in eine Kleberbzw. Mörtelschicht auf einer oberen Steinlage einer im Aufbau befindlichen inneren Mauerwerkschale.
- Fig. 1:
- A top view of a preliminary product for forming an air layer anchor according to the invention,
- Fig. 2:
- a side view of the preliminary product for forming an air layer anchor of FIG
Figure 1 , - Fig. 3:
- from the preliminary product of
Figures 1 and 2 created air layer anchor according to the invention in a side view, - Fig. 4:
- the air layer anchor suspended on the topmost brick layer of an inner masonry shell
Figure 3 , - Fig. 5:
- a representation of the air layer anchor anchored in the inner masonry shell, bent up into its horizontal position of use
- Fig. 6:
- a plan view of a section of an air layer anchor as a preliminary product according to a further embodiment and
- Fig. 7:
- the air layer anchor of
Figure 6 introduced into an adhesive or Mortar layer on an upper stone layer of an inner masonry shell under construction.
Das in
Bei dem dargestellten Ausführungsbeispiel sind in den Verankerungsabschnitt 3 Verklammerungsdurchbrechungen 8 eingebracht. Diese sind als Löcher ausgeführt, wobei der Lochrandbereich zur Versteifung und zur Verbesserung der Verklammerung verprägt ist (in
Aus der Darstellung der
Aus dem Vorprodukt 1 wird bei diesem Ausführungsbeispiel ein Luftschichtanker 12 hergestellt, indem der Verankerungsabschnitt 3, der zum Eingreifen in eine Fuge einer inneren Mauerwerkschale vorgesehen ist, gegenüber dem Schaftabschnitt 2 abgewinkelt wird, und zwar bei dem dargestellten Ausführungsbeispiel um etwa 90 Grad (s.
Die Darstellung der
Ist die innere Mauerwerkschale 16 fertiggestellt und wird die äußere Mauerwerkschale errichtet (in den Figuren nicht dargestellt), werden die in der inneren Mauerwerkschale 16 verankerten Luftschichtanker 12 in ihre bestimmungsgemäße Stellung gebogen, und zwar in der Zone der Abwinklung 13. Diese Aufschwenkbewegung des Schaftabschnittes 2 mit dem Verankerungsabschnitt 4 ist in
Bei dem in den vorstehend gezeigten Figuren beschriebenen Ausführungsbeispiel ist die Abwinklung des Verankerungsabschnittes 3 gegenüber dem Schaftabschnitt 2 so ausgeführt, dass die Flachseite 10 des Verankerungsabschnittes 3 mit der Mantelfläche 11 den vorgenannten Winkel von etwa 90 Grad einschließt.In the embodiment described in the figures shown above, the angling of the anchoring
Die Erläuterungen zu den vorstehend beschriebenen Ausführungsbeispielen machen deutlich, dass sich dasselbe Konzept auch bei Luftschichtdübelankern umsetzen lässt.The explanations of the exemplary embodiments described above make it clear that the same concept can also be implemented with air layer dowels.
Die Erfindung ist anhand von Ausführungsbeispielen beschrieben worden. Ohne den Umfang der geltenden Ansprüche zu verlassen, ergeben sich für einen Fachmann zahlreiche weitere Ausgestaltungen, die Erfindung umzusetzen.The invention has been described on the basis of exemplary embodiments. Without departing from the scope of the applicable claims, a person skilled in the art will find numerous other configurations for implementing the invention.
- 1, 1.11, 1.1
- VorproduktPreliminary product
- 2, 2.12, 2.1
- SchaftabschnittShaft section
- 3,3.13.3.1
- VerankerungsabschnittAnchoring section
- 4,4.14.4.1
- VerankerungsabschnittAnchoring section
- 5,5.15.5.1
- ÃœbergangsabschnittTransition section
- 66th
- ÃœbergangsabschnittTransition section
- 77th
- StoßPush
- 88th
- VerklammerungsdurchbrechungBracing breakthrough
- 99
- AusstanzungPunching
- 1010
- FlachseiteFlat side
- 1111
- MantelflächeOuter surface
- 12, 12.112, 12.1
- LuftschichtankerAir layer anchor
- 13, 13.113, 13.1
- AbwinklungAngulation
- 14, 14.114, 14.1
- KleberschichtAdhesive layer
- 1515th
- SteinlageStone layer
- 16, 16.116, 16.1
- MauerwerkschaleMasonry shell
- 1717th
- AußenseiteOutside
- 1818th
- SickeBead
Claims (14)
- Cavity wall tie made of metal, for connecting an inner masonry shell (16, 16.1) with an outer masonry shell arranged at a distance interval from the inner masonry shell (16, 16.1), comprising a shaft section (2, 2.1) which essentially bridges the distance interval between the masonry shells, a first anchoring section (3, 3.1) formed at the shaft section (2, 2.1) at its one end, for anchoring the cavity wall tie (12, 12.1) in a joint of an inner masonry shell (16, 16.1) and a second anchoring section (4, 4.1) formed at the shaft section (2, 2.1) at its other end, for anchoring the cavity wall tie (12, 12.1) in a joint of an outer masonry shell, wherein a transition section (5, 6; 5.1) is provided between the anchoring sections (3, 4; 3.1, 4.1) and the shaft section (2, 2.1), characterised in that the cavity wall tie (12, 12.1) is L-shaped in its form as supplied, since the first anchoring section (3, 3.1) is angled in relation to the longitudinal extension of the shaft section (2, 2.1), wherein the zone of the angle (13, 13.1) is delimited on its side facing towards the shaft section (2, 2.1) by a bracing structure (5, 5.1).
- Cavity wall tie according to claim 1, characterised in that the first anchoring section (3, 3.1) encloses an angle with the shaft section (2, 2.1) of at least 80 degrees, and in particular some 90 degrees.
- Cavity wall tie according to claim 1 to 2, characterised in that the flexure (13, 13.1) on its side facing towards the shaft section (2, 2.1) is delimited by the transition section (5, 5.1) acting as a bracing structure.
- Cavity wall tie according to any one of claims 1 to 3, characterised in that the first anchoring section (3, 3.1) is flush with its two flat sides (10) with the outer surface (11) of the shaft section (2, 2.1).
- Cavity wall tie according to claim 4, characterised in that the flat side (10) of the first anchoring section (3), which is flush with the outer surface (11) of the shaft section (2), is the flat side in the direction of which the angling part is oriented.
- Cavity wall tie according to claim 4, characterised in that the direction of the angling part, by which the angling section (3.1) is angled in relation to the shaft section (2.1), is the side facing away from the flat side of the first anchoring section (3.1), flush with the outer surface of the shaft section (2.1).
- Cavity wall tie according to any one of claims 1 to 6, characterised in that the flexure (13.1) is delimited on its side facing towards the first anchoring section (3.1) by the second bracing structure (18).
- Cavity wall tie according to claim 7, characterised in that the second bracing structure is configured as beading (18).
- Cavity wall tie according to claim 8, characterised in that the beading (18) comprises a longitudinal axis and a short axis, and the beading (18) is arranged with its longitudinal axis transverse to the longitudinal extension of the anchoring section (3.1).
- Cavity wall tie according to any one of claims 1 to 9, characterised in that the first anchoring section (3, 3.1) exhibits a greater width than the diameter of the shaft section (2, 2.1).
- Cavity wall tie according to claim 10, characterised in that the cavity wall tie (12, 12.1) is produced by the shaping of a metal plate, and the first anchoring section (3, 3.1) is a section which cannot be deformed in respect of the formation of the shaft section (2, 2.1).
- Cavity wall tie according to any one of claims 1 to 11, characterised in that the cavity wall tie (12, 12.1) is produced from a stainless steel.
- Cavity wall tie according to claim 12, characterised in that the steel is a Cr-Ni steel with Mo addition.
- Arrangement comprising a masonry shell (16, 16.1) located in the building structure and at least one cavity wall tie (12, 12.1) according to any one of claims 1 to 13, characterised in that a layer of adhesive or mortar (14, 14.1) is applied onto the present topmost masonry layer (15) of the masonry shell (16, 16.1) located in the building structure, onto which is laid the first anchoring section of the cavity wall tie (12, 12.1), or is pressed into the first anchoring section (3, 3.1) of the cavity wall tie (12, 12.1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202017101820.2U DE202017101820U1 (en) | 2017-03-29 | 2017-03-29 | Air layer anchor and arrangement with such an air layer anchor |
Publications (2)
Publication Number | Publication Date |
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EP3382119A1 EP3382119A1 (en) | 2018-10-03 |
EP3382119B1 true EP3382119B1 (en) | 2020-11-11 |
Family
ID=61832286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18164356.0A Active EP3382119B1 (en) | 2017-03-29 | 2018-03-27 | Cavity wall tie and assembly with such a wall tie |
Country Status (2)
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EP (1) | EP3382119B1 (en) |
DE (1) | DE202017101820U1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29718804U1 (en) | 1997-10-22 | 1997-12-04 | Bever Gesellschaft für Befestigungsteile - Verbindungselemente mbH, 57399 Kirchhundem | Air layer anchor |
DE20000602U1 (en) * | 2000-01-14 | 2000-05-18 | Bodegraven B V Metaalfab Nieuw | Wall anchor and hollow wall with wall anchor |
EP1584763B1 (en) * | 2004-04-07 | 2011-06-08 | BEVER Gesellschaft für Befestigungsteile- Verbindungselemente mbH | Cavity wall tie with beads |
-
2017
- 2017-03-29 DE DE202017101820.2U patent/DE202017101820U1/en not_active Expired - Lifetime
-
2018
- 2018-03-27 EP EP18164356.0A patent/EP3382119B1/en active Active
Non-Patent Citations (1)
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