EP3822429B1 - Dispositif de recouvrement des joints de dilatation entre les revêtements de sol doté d'un système antiadhérent - Google Patents

Dispositif de recouvrement des joints de dilatation entre les revêtements de sol doté d'un système antiadhérent Download PDF

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Publication number
EP3822429B1
EP3822429B1 EP19209629.5A EP19209629A EP3822429B1 EP 3822429 B1 EP3822429 B1 EP 3822429B1 EP 19209629 A EP19209629 A EP 19209629A EP 3822429 B1 EP3822429 B1 EP 3822429B1
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EP
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Prior art keywords
profile
sealing compound
expansion joint
floor
empty space
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EP19209629.5A
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German (de)
English (en)
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EP3822429A1 (fr
Inventor
Walfred Prossegger
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02005—Construction of joints, e.g. dividing strips
    • E04F15/02016—Construction of joints, e.g. dividing strips with sealing elements between flooring elements

Definitions

  • the invention relates to a device for covering expansion joints between floor coverings according to the preamble of patent claim 1.
  • Screed and construction joints are present in almost all buildings and some are even stipulated by DIN standards. There are, for example, movement joints and dummy joints, but also joints for sound insulation. In the area of floor slabs and screed, expansion joints are usually used, which allow the adjacent bodies to expand or contract under the influence of temperature. If no joints are installed, cracks in the covering or dishing can occur at these points. Repairing such structural damage is very time-consuming and cost-intensive.
  • a profile rail is used to bridge the expansion joint, resulting in a continuous tread surface.
  • the profile rail serves as expansion joint cladding and enables the two adjacent structures to "work" with one another.
  • the profile rail is fixed to the two adjacent bodies with the aid of the retaining lugs, with the profile rail completely covering the expansion joint in the longitudinal direction.
  • the profile rail basically consists of two profile rail parts, which are connected to each other via a tongue and groove connection. If the tongue and groove connection is pulled apart due to a temperature fluctuation, a gap is formed between the two profile rail parts, resulting in unevenness in the floor covering. The distance has the disadvantage that, for example, the wheels of a sick bed in a hospital get caught in this area when crossing the profile rail or damage the edge of the profile rail due to the high weight.
  • the embodiment disclosed there is a device for covering expansion joints between floor coverings.
  • the device essentially consists of two profile elements which are connected to one another by a tongue and groove connection.
  • the two elements each have vertical angle profiles in the area of the expansion joint, which together form a U-shaped empty space that is filled with a sealing compound.
  • the height of the angle profiles corresponds to the height of the subsequent floor covering.
  • the installation of the sealing compound is not that easy, because the sealing compound has to be introduced into the empty space on site in one operation.
  • the sealant adheres to all three sides of the U-shaped void.
  • This has the disadvantage that when the two bodies move, high forces act on the sealing compound and cracks form or the sealing compound completely tears off at least one wall surface due to the three-sided fixation with the wall surfaces of the U-shaped empty space.
  • the high requirements in the medical and care sector cannot be met, since dirt and moisture settle in the cracks that are formed.
  • the service life of the covering compound is therefore very limited and must be renewed frequently.
  • the object of the present invention is now to develop the device for covering expansion joints of the type mentioned at the outset in such a way that a good, durable and flush seal is achieved between the two adjacent floor coverings. Furthermore, the expansion joint cladding should be easy to install on site because it is prefabricated at the factory.
  • the invention is characterized in that an anti-adhesion system is arranged in the empty space between the two profile elements, which prevents the sealing compound from adhering to at least one surface.
  • the sealing compound preferably only adheres to two wall surfaces in the empty space of the angle profiles, as a result of which better elasticity is achieved.
  • the non-stick system prevents the sealing compound from sticking to the wall or floor surface.
  • the non-stick system according to the invention prevents the sealing compound from sticking to the respective surface. It may even be possible for the sealing compound to slide on the non-stick system.
  • the sealing compound thus has one more degree of freedom compared to the prior art, as a result of which the stresses on the sealing compound are reduced when the two bodies move. In this way, in particular, crack formation in the sealing compound can be prevented.
  • the expansion joint covering according to the invention can now withstand the high mechanical loads and the hygienic requirements in the medical and care sector, e.g. when transporting patients.
  • the sealing compound now has better elasticity, as a result of which the mechanical loads are better balanced and cracking within the sealing compound is prevented.
  • a flush transition between the two adjacent floor coverings is achieved.
  • the expansion joint profile is used to cover the screed expansion joint and preferably consists of two profile elements which form an empty space for the sealing compound between them.
  • the two spaced-apart profile elements are arranged such that they can move in relation to one another, with the sealing compound compensating for changes in the distance between the expansion joint of the floor structure and thus for the movement of the profile elements.
  • the elastic sealing compound thus compensates for the movement of the two profile elements, which is caused by the expansion or contraction of the two bodies.
  • the empty space can also be referred to as an expansion area.
  • the profile elements either slide on top of each other or have a sliding connection, such as a tongue and groove connection. It is crucial that the profile elements are connected to the respective floor surfaces and cover the expansion joint.
  • the expansion joint profile can be made of aluminum or stainless steel, for example. However, it is also possible for the expansion joint profile to consist of a different material, such as a plastic or the like.
  • the expansion joint profile When installed, the expansion joint profile with its profile elements and their contact surfaces lies on the surface of the screed and completely covers the expansion joint in the longitudinal direction.
  • An expansion joint profile preferably extends over the entire length of the expansion joint.
  • the expansion joint profile is thus adapted to the local conditions.
  • the profile elements are preferably designed to be relatively wide in order to distribute the point loads that occur in the area of the expansion joint onto the floor surface underneath.
  • the installation height of the expansion joint profile is, for example, 2.2 mm for a 2.0 mm high floor covering or 2.8 mm for a 2.5 mm high floor covering.
  • a thin-layer floor covering is understood to mean polymeric coverings with thicknesses in the range from 2 mm to 22 mm, in particular and typically in the range from 2 to 4 mm.
  • PVC-free floor coverings are often required and represent a major challenge for the service life of the floor coverings used. Beds in hospitals, for example, are sometimes very heavy due to additional equipment and weigh a few 100 kg. All of the weight is then transferred to the floor via the rollers. Without suitably designed profile rail elements with a corresponding weight distribution on the surfaces of the screed panels, there is a risk that the screed edges in the Break or crumble away in the expansion joint area, thereby destroying the entire expansion joint system.
  • a sealing compound is understood as meaning a sealant which is suitable for sealing joints, gaps, openings and the like. Further examples of a sealing compound are a joint compound, a sealing compound, a joint sealant, a soft seal or a liquid seal. In practice, the sealing compound must be able to be exposed to the movements of the two profile elements, but must adhere to the joint flanks, i.e. to the respective wall surfaces.
  • the sealing compound consists, for example, of a silicone-free material and can have different colors.
  • the respective color of the sealing compound is adapted to the neighboring floor coverings.
  • the sealing compound preferably has the same or a similar RAL color as the adjacent floor coverings.
  • the sealing compound consists of a silane-modified polymer (SM polymer or SMP) or generally a hybrid polymer or hybrid sealant and adhesive.
  • SM polymer silane-modified polymer
  • SMP silane-modified polymer
  • the introduction into the empty space takes place by means of application nozzles with a correspondingly shaped nozzle shape from storage containers such as a cartridge and the like.
  • SM polymers have very good adhesion properties, e.g. with aluminium, whereby no pre-treatment is usually required.
  • the sealing compound can have a Shore hardness according to DIN 53505 of 40 to 65 and can be painted or painted over. Furthermore, the sealing compound can be UV-resistant and antifungal or antibacterial and/or resistant to cleaning agents and/or antistatic. A PU coating can also be applied to the sealing compound. This can be done either at the factory or on site. The adhesion of the sealing compound on the wall surfaces of the angle profiles is such that there is a waterproof and durable elastomeric connection or seal between the two opposite wall surfaces of the profile elements.
  • the width of the sealing compound is, for example, 3 mm to 10 mm, typically 6.5 mm.
  • the height of the sealing compound is adapted to the thickness of the floor covering and is, for example, between 2 mm and 22 mm, typically 2 to 4 mm and specifically 2.8 mm.
  • the sealing compound is preferably introduced into the empty space of the expansion joint profile at the factory. This has numerous advantages over on-site installation. In particular, there is a dust-free environment in the factory, which means that no inclusions get into the sealing compound. In addition, the assembly of the sealant in the factory is easier and the quality of the entire expansion joint profile can be constantly checked.
  • the empty space is located between and is formed by the two angle profiles of the profile elements.
  • the void has a first vertical wall surface, a vertical floor surface, and a second vertical wall surface. Together, the wall and floor surfaces form a U-shape.
  • the empty space can also have another geometric shape, such as an oval shape, a triangular shape, a round shape or a polygonal shape.
  • the non-stick system according to the invention is arranged in the empty space.
  • the task of the non-stick system is to prevent the sealing compound from sticking to at least one wall surface in the empty space.
  • the non-stick system thus serves to avoid undesirable adhesions of the sealing compound. In general, complete adhesion of the sealing compound to a surface should be prevented. However, it is also possible for the non-stick system to prevent the sealing compound from sticking of the surface is reduced, with increased mechanical stress causing the sealing compound to tear away from the non-stick system.
  • the non-stick system according to the invention can be arranged on only one surface, but also on several surfaces. It is also possible, for example, for the non-stick system to be arranged on two surfaces and for the sealing compound to adhere only to the third surface.
  • non-stick system can either be applied over the entire surface or only partially in some sub-areas. For example, only certain sections of the respective surface can have the non-stick system.
  • the sealing compound is intended to adhere to two wall surfaces. This means that in the case of the U-shaped empty space, the sealing compound adheres, for example, to the two opposite wall surfaces and there is no adhesion to the floor surface due to the non-stick system.
  • the sealing compound it is also possible for the sealing compound to adhere to one wall surface and the bottom surface and for the other wall surface to have the non-stick system, which prevents the sealing compound from adhering to this surface.
  • adhesion means a connection of the sealing compound to the respective wall or floor surface.
  • Cling can also mean sticking, clinging, sticking, stuck, or holding.
  • the anti-adhesion system can have various embodiments - what is decisive is that the anti-adhesion system according to the invention prevents or reduces adhesion of the sealing compound to the respective surface.
  • the non-stick system is arranged, for example, on the upper side of the tongue-like section which forms the bottom surface of the empty space.
  • the sealing compound then adheres to the two wall surfaces.
  • the non-stick system is designed as a release film (release paper or release liner) based on a paper or polymer carrier in the form of strips on rolls.
  • the release film can be self-adhesive and have a non-stick surface.
  • the separating film is usually attached during the production of the expansion joint profile, so that the finished expansion joint profile is already available on the construction site, which only has to be installed and filled with the sealing compound.
  • the expansion joint profile prefferably be completely factory-made. This applies in particular to the introduction of the sealing compound and the sealing with polyurethane (PU).
  • PU polyurethane
  • the expansion joint profile with separating film and elastomer compound is particularly suitable in combination with underfloor heating, as in such cases the expansion joints change significantly or move constantly depending on the temperature.
  • the non-stick system is designed as a coating.
  • all coating methods can be used. It can be a solid or liquid coating, for example, which prevents the sealing compound from adhering to the wall or floor surface. Examples of a possible coating are PTFE coating, PFA coating or an FEP coating. An additional heat treatment of the non-stick coating also increases scratch resistance and thus mechanical resistance.
  • a release agent can also be used as a non-stick system, which prevents the sealing compound from sticking to the respective surface.
  • These can be, for example, silicone release agents, silicone-free release agents, special release agents, urethane release agents, wax, cornmeal or calcium powder, mold oil, talc or carbon black.
  • the device according to the invention for lining expansion joints is for the transition between two adjacent sections of a floor covering in the area of an expansion joint of a floating screed in the interior of a building.
  • the device consists of a first and a second profile element, which correspond to each other to cover the expansion joint and each lie in the edge area of concrete slabs of the screed and cover this edge area over a large area by means of their contact surfaces up to the concrete edges.
  • the contact surfaces have a large number of flat openings and the first profile element has a section which has legs that are fork-shaped in cross section and the second element has a tongue-like section which slides into the interior of the section delimited by the legs to the extent that in which the expansion joint narrows or expands.
  • a first profile is formed at the free end of the leg of the first profile element and a second profile is formed in the vicinity of the tongue-like section of the second profile element. Both profiles are designed to be flush with the surface of the floor covering, with an empty space being formed between the two profiles, which is filled with a sealing compound.
  • the two profiles are designed as angle profiles, the height extensions of which are flush with the surface of the floor covering and form the empty space which is filled with the sealing compound.
  • the angle profiles form bearing surfaces on which the floor covering rests.
  • lowered edge areas are provided on the side next to the bearing surfaces, which allow the assembly adhesive, with which the profile elements are attached to the screed, to a limited extent to be able to pass upwards through the openings without causing distortions in the floor covering.
  • the release system can either be placed on a surface in the void or bonded directly to the sealant. In a connection with the sealant, this can, for example, during the assembly of Sealing compound done in the void.
  • the non-stick system can be designed as a separating film, which is connected to the sealing compound.
  • the floor structure 1 consists of the base plate 6, on which the screed 5 is arranged.
  • the screed 5 is divided into two screed parts 5a and 5b, with an expansion joint 4 between the screed parts 5a, 5b.
  • Above the expansion joint 4 is the expansion joint profile 2 , which essentially consists of the profile elements 7 , 8 .
  • the profile elements 7, 8 are each on the screed parts 5a, 5b.
  • the profile elements 7, 8 are flat, so that the load occurring is distributed over a large area on the screed parts 5a, 5b.
  • the floor coverings 3 are located on the profile elements 7, 8.
  • the height of the profile elements 7, 8 is adapted to the thickness of the floor coverings 3, so that a continuous surface is achieved when the expansion joint profile 2 is installed.
  • the sealing compound 10 which is elastic and a movement of the two profile elements 7, 8 compensates.
  • the height of the sealing compound 10 is so high that there is a clean transition or a continuous surface for the floor coverings 3 .
  • the figure 2 shows a simplified representation of the expansion joint profile 2 according to the invention.
  • the two-part expansion joint profile 2 consists of the two oppositely arranged profile elements 7, 8, which each have their free Ends have an angle profile 11, 12.
  • the angle profiles 11, 12 preferably extend at right angles to the elongated contact surfaces 21, 22 of the profile elements 7, 8. Due to the arrangement of the two profile elements 7, 8 to one another and the two angle profiles 11, 12, there is an empty space 9 which can be filled with the sealing compound 10 is filled out.
  • the sealing compound 10 adheres to the two wall surfaces of the angle profiles 11, 12, but not to the bottom surface 15, because the non-stick system 22 according to the invention is arranged there.
  • the anti-adhesion system 22 thus prevents the sealing compound 10 from adhering to the bottom surface 15.
  • the sealing compound 10 thus only adheres to two surfaces out of a total of three surfaces, as a result of which better elasticity is achieved in the sealing compound 10 and the mechanical load on the sealing compound 10 during movement of the profile elements 7, 8 is reduced.
  • FIG 3 shows the expansion joint profile 2 without sealing compound 10 in the empty space 9.
  • the left profile element 7 has an angle profile 11 with a wall surface 13 on which the non-stick system 22 according to the invention is located.
  • the right profile element 8 also has an angle profile 12 with a wall surface 14 on which the non-stick system 22 is also located.
  • the sealing compound 10 can thus only adhere to the bottom surface 15 in the empty space 9 .
  • the two profile elements 7, 8 are sliding
  • the expansion joint profile 2 is shown, which consists of the profile elements 7 and 8.
  • the profile element 7 has a groove 16 in which a tongue 17 of the other profile element 8 engages.
  • This longitudinal displacement is caused in particular by the movement of the two screed parts 5a, 5b, for example when there is a temperature expansion.
  • figure 4 shows the expansion joint profile 2 with a void 9 which is filled with the sealing compound 10 .
  • the non-stick system 22 which prevents the sealing compound 10 from sticking or sticking to the floor surface 15.
  • non-stick system 22 it is possible for the non-stick system 22 not only to cover the bottom surface 15, but also partially the adjacent wall surfaces. An adhesion of the sealing compound 10 would then only be given in the upper two areas of the U-shaped legs.
  • the bearing surfaces 20 and 21, On the undersides of the profile elements 7, 8 are the bearing surfaces 20 and 21, with which the profile elements 7, 8 rest on the screed 5. A fixed attachment of the bearing surfaces 20, 21 to the surface of the screed 5 preferably takes place.
  • the two bearing surfaces 18, 19 are shown, on which the floor coverings 3 rest.
  • the floor coverings 3, the angle profiles 11, 12 and the sealing compound 10 preferably form a flat surface.
  • FIG. 5 shows the empty space 9 without sealing compound 10.
  • the wall surfaces 13 and 14 are equipped without the anti-stick system 22, while the bottom surface 15 has the anti-stick system 22.
  • One profile element 8 has a tongue 17 which engages in a groove-shaped recess (groove 16) and can be displaced there.
  • the bottom surface 15 has the non-stick system 15, which prevents the sealing compound 10 from sticking to this surface.
  • the anti-adhesion system 15 is designed over the entire surface here. However, it is also possible for the anti-adhesion system 15 to be designed in the form of strips and thus only certain partial areas of the surface have the anti-adhesion system.
  • the expansion joint profile 2 is suitable for laying thin-layer floor coverings 3 on a screed 5 in the interior of a building, such as a hospital with high hygienic requirements and high mechanical loads.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Claims (10)

  1. Dispositif pour couvrir des joints de dilatation de chape (4) pour une construction de sol (1) à l'intérieur d'un bâtiment, dans lequel le dispositif est conformé en profilé de joint de dilatation (2), lequel est constitué d'au moins deux éléments de profilé (7, 8) écartés qui sont agencés de manière mobile l'un par rapport à l'autre et forment entre eux un espace vide (9), qui est rempli avec une masse d'étanchéité (10) qui adhère à au moins une surface (13, 14, 15) de l'espace vide (9), dans lequel la masse d'étanchéité (10) compense les variations d'écart du joint de dilatation (12) de la construction de sol (1), caractérisé en ce qu'un système antiadhésif (22) est agencé dans l'espace vide (9), qui empêche un effet d'adhérence de la masse d'étanchéité (10) à au moins une surface (13, 14, 15).
  2. Dispositif selon la revendication 1, caractérisé en ce que le système antiadhésif (22) est conformé en revêtement.
  3. Dispositif selon la revendication 1, caractérisé en ce que le système antiadhésif (22) est conformé en feuille de séparation autocollante avec une surface antiadhésive.
  4. Dispositif selon la revendication 1, caractérisé en ce que le système antiadhésif (22) est conformé en agent de séparation.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les éléments de profilé (7, 8) sont reliés entre eux par une liaison à rainure et languette.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que les éléments de profilé (7, 8) comportent des profilés angulaires respectifs (10, 12), qui s'étendent à angle droit et forment entre eux l'espace vide (9), dans lequel le premier profilé angulaire (11) comporte une première surface de paroi (13) et le deuxième profilé angulaire (12) comporte une deuxième surface de paroi (14), dans lequel l'un des deux éléments de profilé (7, 8) comporte une surface de sol (15).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le système antiadhésif (22) est agencé sur la surface de sol (15) et la masse d'étanchéité adhère uniquement aux deux surfaces de paroi (13, 14).
  8. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que le système antiadhésif (22) est agencé sur les surfaces de paroi (13, 14) et la masse d'étanchéité adhère uniquement à la surface de sol (15).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la masse d'étanchéité est en polymère modifié au silane.
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que les éléments de profilé (7, 8) sont en aluminium ou alliage d'aluminium ou en laiton ou en matière plastique.
EP19209629.5A 2019-11-18 2019-11-18 Dispositif de recouvrement des joints de dilatation entre les revêtements de sol doté d'un système antiadhérent Active EP3822429B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19209629.5A EP3822429B1 (fr) 2019-11-18 2019-11-18 Dispositif de recouvrement des joints de dilatation entre les revêtements de sol doté d'un système antiadhérent

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Application Number Priority Date Filing Date Title
EP19209629.5A EP3822429B1 (fr) 2019-11-18 2019-11-18 Dispositif de recouvrement des joints de dilatation entre les revêtements de sol doté d'un système antiadhérent

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EP3822429A1 EP3822429A1 (fr) 2021-05-19
EP3822429B1 true EP3822429B1 (fr) 2022-04-06

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20070570A1 (it) * 2007-03-22 2008-09-23 Kivatec S R L Giunto antisismico
DE202010015513U1 (de) * 2010-11-15 2011-02-10 Malcher, Richard Dehnungsprofil
DE202013001750U1 (de) 2013-02-25 2013-06-06 Richard Malcher Profilschiene
AT15948U1 (de) 2017-05-03 2018-10-15 Prossegger Walfred Vorrichtung zur dehnfugenverkleidung zwischen mit belägen verkleideten fussbodenabschnitten

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