EP2492428B3 - Staff angle and building corner with staff angle - Google Patents

Description

The invention relates to a plastering strip for placement on a building corner and a building corner with a plastering strip arranged thereon.

In the construction of buildings, the procedure is usually that window frames and door frames, i.e. the fixed window or door frames firmly connected to the building, are inserted into corresponding wall openings in the shell and fastened there. In a later phase, the shell will be plastered outside and inside. Here, the connection of the plaster to the window frame or door frame is a critical point, especially on the outside of the building, because the face of the plaster hits the material of the window frame or door frame and does not form a perfect bond there. Since the plaster shrinks somewhat when it dries, as window and door frames are exposed to vibrations, for example from violently slamming the windows or doors, and since such building corners are also exposed to high temperature fluctuations, there is a risk of a crack or gap between the plaster and the window frame or door frame forms. Moisture can then penetrate here, which in the long term damages the window frame, the door frame or the plaster, for example leading to the plaster crumbling.

Therefore, plastering strips are often provided at the transition between the window or door frame and the plaster, which should decouple the window or door frame from the plaster and at the same time provide a seal between them. Furthermore, a protective film is often attached to the plastering strip during assembly and plastering, which is stretched over the window or door frame and is intended to protect it from damage and soiling. Plaster strips that enable such a protective film to be glued on, as has been shown, can only be produced with a relatively high reject rate. In addition, the removal of the protective film together with a section of the plastering strip that is to be removed accordingly often causes problems, in particular at cold temperatures, which occur regularly on the construction site, especially in winter. Sometimes removal is only possible with great effort, in other cases the corresponding section of the plastering strip breaks off too early. Another problem arises from the risk of injury that occurs during or after removing the protective film together with the corresponding section of the plastering strip.

It is therefore an object of the present invention to provide a plastering strip which enables the protective flap to be removed easily, cleanly and without injury at all temperatures occurring on a construction site. Such a plastering strip should be able to be produced reliably and with only a small amount of waste.

This object is achieved by the subject matter of the independent claim; advantageous developments emerge from the dependent claims.

The invention relates to a plastering strip for placement at a transition between a component of a building, in particular a window / or door frame or a window sill, a beam, a metal connection or a pilaster strip, and thermal insulation and / or a plaster layer. This plastering strip comprises a base body with a section intended for embedding in a plaster layer and a strip-shaped protective flap to which a protective film for the building component can be attached. The strip-shaped protective flap is connected to the base body via a soft connecting bridge which has a plastic material that is softer than the material of the base body.

DE 20 2009 013 120 U1 shows a one-piece plastering strip for placement at a transition between a first component of a building, in particular a window or door frame, a window sill, a beam, a metal connection or a pilaster strip, and a second component of a building, in particular a thermal insulation or a plaster layer : a base area which is provided on its rear side with an adhesive strip extending along the plaster strip for the adhesive connection of the plaster strip to the building component; and a plastering area at least partially next to the base area, which is intended for plastering in a plaster layer, the base area being connected on one side to the plastering area via a flexible connecting piece, the flexible connecting piece being designed in such a way that it can be moved when the plastering area is shifted partially moved along in a direction away from the first building component and thus ensures that the base area remains stationary and the adhesive strip continues to adhere to the first building component. Furthermore, the DE 20 2009 013 120 U1 a break-off strip for attaching a protective film, which is connected to the plastered area via a material bridge of reduced thickness.

The connecting bridge, which has a plastic material that is softer than the material of the base body, is also referred to below as a "soft connecting bridge".

The material of the connecting bridge is chosen so that on the one hand it gives the connecting bridge enough rigidity so that the strip-shaped protective flap is held in position with respect to the base body of the plastering strip during assembly and plastering, in particular rests against the building component, and that the strip-shaped protective flap Protective flap can be removed easily and independently of the prevailing temperatures at the same time.

A risk of specks, which arises from the fact that the plastic does not tear at the predetermined breaking point, but rather prongs remain, is avoided by such a soft connecting bridge.

After the plastering strip has been positioned at a transition between the building component and the thermal insulation or plaster layer, a protective film is usually attached to the strip-shaped protective flap, in particular glued and stretched over the building component in order to protect it from dirt and damage during plastering. After the plastering has been completed, the protective film is removed and the strip-shaped protective flap is separated from the base body of the plastering strip by cutting through the length of the soft connecting bridge.

This separation can be done in any way, in particular the strip-shaped protective flap can be manually pulled off the base body of the plastering strip, which can be simplified by scoring or cutting the connecting bridge at the end of the plastering strip. The connecting bridge can also be severed lengthwise by a cutting tool, for example a cutter knife, in order to separate the strip-shaped protective flap from the base body.

When the soft material bridge is severed, the soft connecting bridge section remaining on the base body forms a soft edge and thus a soft end of the plastering strip. This reduces the risk of injury to a minimum.

Sharp and jagged edge profiles, which can occur when a connecting bridge is provided as a break-off material bridge made of the same basic material as the plastering strip, as well as the resulting risk of injury, are reliably avoided.

Furthermore, the end on the base body side with the connecting bridge section remaining there is uniform.

By providing the soft connecting bridge, the plastering strip can be easily and reliably divided after assembly, with the term “dividing” being understood here to mean removing the strip-shaped protective flap from the base body.

Because the soft connecting bridge can be severed by a corresponding soft plastic material of the soft connecting bridge, which differs from the hard material of the base body, and the material properties of the soft connecting bridge in the temperature range usually occurring on construction sites from a few degrees below 0 ° C to around 30 ° C are essentially constant, easy severability can be ensured under all occurring temperature conditions. Problems that arise in the design of the material bridge as a break-off material bridge, which is made of the same material as the rest of the plastering strip, such as an unwanted breaking off of the protective flap too early, for example if the break-off material bridge is too thin, too force-consuming breaking of the Material bridges, for example, when the material bridge is too thick or at low temperatures, especially in winter, can be reliably avoided.

Furthermore, a plastering strip according to the present invention can be produced more safely and with fewer rejects than plastering strips with break-off material bridges made of the same material as the rest of the plastering strip, in which the problem often arises that the break-off material bridge is made too thin and the Protective tab falls away too easily or the material bridge is too thick and the protective tab accordingly sits too tightly on the base body.

The inventors have also found that the base material for the base body and / or the protective flap of the plastering strip according to the invention are also cheaper and lower-quality plastics, such as regrind, i.e. recycled plastic, or plastic with a proportion of regenerated material, which are only rarely used in conventional plastering strips come, because after severing the break-off material bridge made of lower-quality plastic, such specks or prongs remain on the base body of the plastering strip. Due to the soft connecting bridge, such specks or spikes can be avoided even when using cheaper and lower-quality plastics for the base body and / or the protective flap. Such a plastering strip according to the invention also offers a cost advantage.

The softness of the soft connecting bridge can be adjusted in production via the Shore hardness.

In contrast to break-off material bridges, which are made of the same material or have the same strength as the rest of the plastering strip, with a soft connecting bridge uneven end shapes of the base body of the plastering strip can be easily corrected by simply pulling off or cutting off protruding edge areas made of soft connecting bridge material .

If both the base body and the strip-shaped protective flap are made of the same hard plastic material, then the plastic material of the connecting bridge is softer than these two components of the plastering strip.

A plastering strip according to the invention can be fixed to the corner of the building in any way, for example the plastering strip can be fixed, in particular glued, to the building component, the plastering strip can also be fixed in position in a gap between the thermal insulation and the building component or also attached to the thermal insulation . All of these possibilities can be used in the plastering strip according to the invention.

According to a first embodiment of the invention, the base body also has a section that can be fastened to the building component in order to fasten the plastering strip to the building component.

According to another embodiment of the invention the connecting bridge has a thermoplastic elastomer TPE. This material is particularly suitable for the soft connecting bridge because it offers enough rigidity to hold the strip-shaped protective tab in position during assembly and plastering, and at the same time the connecting bridge can simply be cut through in order to close the strip-shaped protective tab from the base body of the plastering strip remove. These material properties and advantages are given with TPE over the entire occurring temperature range.

With TPE, there is also the further advantage that this material is UV-resistant, so there is no impairment of the material even in strong sunlight. This is all the more important because the edge of the section of the severed connecting bridge remaining on the base body is often exposed to solar radiation.

Other suitable materials for the connecting bridge are soft PVC and polyurethane.

According to a further embodiment of the invention, the base body and / or the strip-shaped protective flap have a hard PVC. This material has proven itself for plastering strips.

A plastering strip according to the invention can be produced particularly reliably by extrusion.

According to a further embodiment of the invention, the connecting bridge is produced together with the base body and with the strip-shaped protective flap by coextrusion. The plastering strip according to the invention can thus be produced safely and with little waste with the soft material bridge.

According to a further embodiment of the invention, the material thickness in the area of the connecting bridge is less than in the adjoining end pieces of the base body and the strip-shaped protective flap. As a result of such a slightly reduced material thickness of the connecting bridge, it can still have the necessary rigidity to hold the strip-shaped protective flap in position during assembly and plastering. A connecting bridge with such a reduced material thickness can be cut through in a particularly simple manner in order to separate the strip-shaped protective flap.

According to a further embodiment of the invention, the material thickness of the soft connecting bridge is less in its central section than at its end sections with which the connecting bridge adjoins the end pieces of the base body and the strip-shaped protective flap. In particular, the connecting bridge tapers towards its central section and / or has a concave / convex cross-sectional profile. With this embodiment of the invention, a predetermined separation point is created through the middle section of the soft connecting bridge, in which the material thickness is lowest, so that when the connection bridge is separated, it is separated along this predetermined separation point, which results in a particularly favorable and uniform plaster strip end course on the base body side.

According to a further embodiment of the invention, that section of the base body which can be fastened to the building component is designed as a base wall.

According to a further embodiment of the invention, that section of the base body which is intended for embedding in a plaster layer is designed as a projecting plaster leg with a plaster end side.

According to a further embodiment of the invention, the plaster leg has a stepped profile.

According to a further embodiment of the invention, the base wall and the protruding plaster leg with plaster end side are designed to be displaceable against each other after separating the strip-shaped protective tab along the connecting bridge in order to be able to absorb and compensate for movements between the building component and the thermal insulation or plaster layer.

According to a further embodiment of the invention, the base wall and the protruding plastering leg are in guide connection to one another, which enables a relative movement of the base wall to the protruding plastering leg.

Such a guide connection can be designed in the manner of a bayonet, i.e. as an extension provided on the base wall side which protrudes into a receiving space on the plastered leg side or as an extension provided on the plastered leg side which protrudes into a base wall side receiving space.

Likewise, the base wall and the protruding plaster leg can be connected to one another by a so-called loop, that is to say by a flexible material area, which ensures a relative movement of the base wall to the protruding plaster leg.

In the case of a plastering strip with a base wall and protruding plastering legs arranged displaceably to it, the soft connecting bridge can be used as a first connecting strip between the strip-shaped protective flap and the base wall, in particular one end of the base wall, and / or as a second connecting strip between the strip-shaped protective flap and the protruding plastering leg with plastering end especially with the end of the plaster finish side. It is therefore only possible to provide connecting strips that connect the strip-shaped protective flap to the base wall or to the protruding plaster legs. Alternatively, two connecting strips can also be provided, of which the first connecting strip connects the protective flap to the base wall and the second connecting strip connects the protective flap to the protruding plaster leg.

According to a further embodiment of the invention, the base body for attachment to the Surface of the building component via an adhesive tape or an adhesive strip.

According to a further embodiment of the invention, the base body has an expansion band with delayed expansion for fixing on the surface of the building component, which is sealingly applied to the surface of the building component and compensates for movements between the building component and the thermal insulation or plaster layer.

According to a further embodiment of the invention, a protective lip is arranged next to the adhesive strip and / or the expansion tape, in particular outside the adhesive strip and / or the expansion tape, which is made of a soft, flexible material and which, when the plastering strip is installed, rests against the building component and protects the adhesive strip and / or the expansion tape from dirt and / or moisture and / or UV radiation. If this protective lip is also designed so that it is also tight against driving rain, it can also be referred to as a sealing lip.

According to a further embodiment of the invention, the projecting plaster leg with the plaster end side is provided with a grooved profile for improved adhesion to the plaster.

According to a further embodiment of the invention, a reinforcement fabric section is attached to the protruding plaster leg, which is embedded in the plaster.

The invention also relates to a building corner with a plastering strip of the type described above. The plastering strip is fixed with a section of the base body on the building component, rests with a further section of the base body on the thermal insulation and is embedded with this further section in a plaster layer . When this building corner is in the assembled state, a protective film is attached to the strip-shaped protective flap. This protective film spans at least part of the building component that is to be protected from soiling and damage during assembly and / or during plastering.

The invention also relates to a building corner with a plastering strip of the type described above, which is fixed with a section of the base body on the building component and which rests against the thermal insulation with a further section of the base body and is embedded in a plaster layer with this further section. In this building corner in the finished state, the strip-shaped protective flap is separated from the base body of the plastering strip by cutting through the soft connecting bridge, so that the connecting bridge section with a soft end edge forms the end of the base body of the plastering strip.

For these building corners, the same advantages and configurations result that have been described above with reference to the plastering strip and are not repeated here.

The connecting bridge can also be referred to as a connecting strip.

• Figur 1 zeigt eine Seitenansicht einer ersten Anputzleiste im Auslieferungszustand; und
• Figur 2 zeigt eine Seitenansicht einer zweiten Anputzleiste im Auslieferungszustand.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying figures.

• Figure 1 shows a side view of a first plaster strip in the delivery state; and
• Figure 2 shows a side view of a second plaster strip in the delivery state.

In both figures, the longitudinal extension of the plaster strip runs in a direction perpendicular to the plane of the drawing.

Figure 1 shows a side view of a first plaster strip 2 in the delivery state.

The plastering strip 2 comprises a base body 4 with an adhesive strip 24 fixed to it for attachment to a component of a building and with a reinforcing fabric section 22 attached to it, which is embedded in a layer of plaster, and a strip-shaped protective flap 26 which is integrally connected to the base body 4. The adhesive strip 24 can be a PE sealing tape.

In principle, plastering strips can be fixed to a building corner in various ways.

In the exemplary embodiments explained with reference to the figures, the plaster strip is fixed to the building component, in particular glued with the adhesive strip 24 or 46.

Alternatively, the plaster strip can also be fixed in position in a gap between the thermal insulation and the building component, or it can also be attached to the thermal insulation. Here, a PE sealing tape or an expansion tape made of pre-compressed foam is often used, which is sealingly applied to the building component and is able to compensate for changes in the gap width.

The building component on which the adhesive strip 24 rests can be designed as a window / door frame, a window sill, a beam, a metal connection or a pilaster strip.

The base body 4 of the first plastering strip 2 comprises an in Figure 1 Base wall 6 shown running horizontally with an adhesive strip 24 fixed to the underside, which in the assembled state of the plastering strip 2 with its in Figure 1 and downwardly directed surface rests on the surface of the building component and creates a seal against it and is optionally additionally glued to the surface of the building component.

If the element 24 is an expansion strip 24 with a certain ability to expand and shrink, changes in distance between the underside of the base wall 6 and the surface of the building component can be compensated within certain limits, which provides a good seal when the conditions change guaranteed.

The base body 4 also has a path leg 10 protruding upwards approximately perpendicularly from the base wall 6. In the present exemplary embodiment, the path leg 10 starts in an area located to the right, that is to say outside the center of the base wall 6, and has an in Figure 1 to the left, ie inwardly facing thermal insulation system side 12, with which the plastering strip 2 can be placed on thermal insulation or a layer of plaster, and via an in Figure 1 to the right, ie outwardly facing plaster side 14 that is plastered. The outwardly facing plaster side 14 of the path leg 10 and the top of the section of the base wall 6 located outside of the path leg are provided with a grooved profile 18 in order to increase the surface that comes into contact with the plaster layer to be applied and thus to increase the adhesion of the To improve the plaster layer on the plaster strip 2. The section of the base wall 6 located outside of the path leg 10 is also referred to as the plaster end side 16, because the plaster to be applied ends here. The outer end edge of the base wall 6 and thus the plaster end side 16 accordingly forms a plaster end edge for the plaster layer to be applied.

The section of the base wall 6 located on the left, i.e. within the path leg 10, and the section of the adhesive strip 24 underneath it are pushed into a gap between the thermal insulation or the existing plaster layer and the building component during the assembly of the plastering strip and fill this gap.

Accordingly, the upper side of the section of the base wall 6 located within the path leg 10 can also be referred to as the thermal insulation contact side 8, in particular as the gap-side thermal insulation contact side 8.

In the Figure 1 inwardly directed surface of the way leg 10 can also be referred to as the surface-side thermal insulation contact side 12.

Approximately in the middle of the thermal insulation contact side 12 is an ultrasonic weld 20, by means of which the in Figure 1 Reinforcing fabric section 22 extending vertically upward is attached to the base body 4.

To the in Figure 1 Right, outer end of the base wall 6 is followed by a strip-shaped protective flap 26. The front side of the protective flap 26 is flat and carries an adhesive layer 28 there. An in Figure 1 Protective film, not shown, are glued on, extending from the plaster strip 2 in Figure 1 extends to the right, i.e. outwards.

If you now imagine a window frame, on the surface of which a plastering strip is glued on the left, right and upper side, then it becomes clear that the protective film covers the entire opening between the three plastering strips and in this way the window frame is in front Protects dirt and damage when applying the plaster. There is no further plastering strip on the lower side where the window sill is positioned.

On its rear side, the protective flap 26 has a spacer web protruding backwards substantially at right angles. The spacer bar is so high that the protective flap 26 is supported on the building component at the rear via the spacer bar in such a way that the front side of the protective flap 26 is essentially parallel to the front side of the building component. The base body 4 is connected to the strip-shaped protective flap 26 by means of a strip-shaped connecting bridge 30 made of a softer material compared to the harder plastic material of the base body 4 and / or the strip-shaped protective flap 26.

In the present exemplary embodiment, the connecting bridge is designed as a TPE connecting bridge 30, i.e. a connecting bridge made of a thermoplastic elastomer, and both the base body 4 with base wall 6 and extension leg 10 and the strip-shaped protective flap 26 are made of a hard plastic, in particular a hard PVC. As an alternative to forming the connecting bridge 30 from a thermoplastic elastomer, it can also have a soft PVC or a polyurethane.

The base body 4 with the base wall 6 and with the extension leg 10 and the strip-shaped protective flap 26 can advantageously be produced by extrusion, the TPE connecting bridge 30 is produced by coextrusion. This ensures a reliable and quick production of the plastering strip.

With an extrusion, the reject can be reduced, and the TPE connecting bridge can be reliably manufactured with a constant material thickness, so that the properties required on the construction site, namely sufficient rigidity with good severability regardless of the prevailing temperatures, are always given. This is a great advantage compared to break-off material bridges with very small wall thicknesses, in which wall thickness deviations from the nominal wall thickness due to manufacturing tolerances often result in rejects already in production, for example due to unwanted breaking of protective flaps due to break-off material bridges made too thin, or insufficient processability the construction site, for example premature breaking of the protective flap if the break-off material bridge is too thin or too much effort and ugly break-off material edges, which create a risk of injury, if the break-off material bridge is too thick.

After the extrusion has taken place, all that remains is to apply the adhesive strip 24 to the underside of the base wall 6, attach the reinforcement fabric section 22 to the extension leg 10 by means of ultrasonic welding 20, and provide the strip-shaped protective flap 26 with the adhesive layer.

On the one hand, the TPE connecting bridge 30 provides enough stability that the strip-shaped protective flap 26 rests against the building component (not shown here) when the plaster strip is positioned at a transition between the building component and the thermal insulation / plaster layer, even if the adhesive film is attached to the adhesive layer 28 and spans the building component.

On the other hand, the TPE connecting bridge 30 is so soft that it can be cut through in a simple manner in order to separate the strip-shaped protective flap from the base body 4 after the cleaning work has been completed.

This severing can be done by pulling off the strip-shaped protective flap while at the same time severing the TPE connecting bridge 30 along the longitudinal extension of the plastering strip 2, possibly supported by cutting the TPE connecting bridge 30 at an end area of the plastering strip. After cutting through the TPE connecting bridge 30, a strip of soft TPE material located at the outer end of the base wall 6 or the cleaning end side 16 remains on the base body 4, so that no sharp edge can arise at this point, which ensures a favorable appearance and Prevents injuries.

As in Figure 1 As can be seen clearly, the material thickness in the middle area of the TPE connecting bridge 30 is less than at its end areas with which the TPE connecting bridge 30 connects to the outer end of the base wall 6 or cleaning end side 16 and to the inner end of the strip-shaped protective flap 26. This enables an even further improved severability of the TPE connecting bridge 30, and after severing the TPE connecting bridge 30, a particularly uniform edge course results, since such a TPE connecting bridge 30 is cut favorably along its central area with reduced material thickness, which also results in a particularly advantageous appearance contributes. By providing such a TPE connecting bridge 30, the strip-shaped protective flap 26 can be severed with little effort regardless of the temperature prevailing at the construction site. Unwanted, premature detachment of the protective flap 26 is avoided, as well as an excessively high expenditure of force to detach the protective flap 26, as often occurs with thick demolition material bridges and is further increased by the cold temperatures prevailing on the construction site.

Likewise, after the plastering has been completed, the TPE connecting bridge 30 can also be cut through by a cutting tool, for example a cutter knife, in order to separate the strip-shaped protective flap 26.

The above with reference to Figure 1 plastering strip 2 described is described by way of example as representative of a large number of differently constructed one-piece plastering strips.

Also encompassed by the present invention are one-piece plaster strips with a so-called loop solution, that is to say a flexible material section that connects a base area with a displaceable area.

Figure 2 shows a side view of a second plaster strip 32 in the delivery state.

As in the case of the first plastering strip 2, the second plastering strip 32 also has a base body, one section of which can be fastened to the building component and a further section is intended for embedding in a plaster layer, and a strip-shaped protective flap 26, which is provided with is connected to the base body.

The strip-shaped protective flap 26 with the adhesive layer 28 of the second plaster strip 32 corresponds to the strip-shaped protective flap 26 with the adhesive layer 28 of the first plaster strip 2 and is not explained again in the following.

In contrast to the first plaster strip 2, in which the base body 4 is formed in one piece, the base body of the second plaster strip 32 is divided into a base area 34 and a front area 36 that can be displaced in relation to the base area 34 in the direction of changing the distance between the base area 34 and the front area 36.

The base region 34 comprises a base wall 38 with an adhesive strip 46 attached to its underside, the underside of which, in the assembled state of the plastering strip 32, lies tightly against the surface of the building component and is possibly glued to it.

If it is an expansion strip 46 made of a flexible material, it can be compressed and expanded again in order to be able to compensate for changes in distance between the underside of the base wall 38 and the surface of the building component within certain limits.

At the right outer end of the base wall 38, a protective lip 44 extends downward. This protective lip 44 is formed in particular from a flexible plastic material that is softer than the hard plastic material of the base region 34 and thus has a certain flexibility. Such a flexible protective lip 44 rests against the surface of the building component when the second plastering strip 32 is installed, namely at a position outside the adhesive strip 46 and thus reliably prevents moisture from reaching the adhesive strip 46.

The protective lip 44 can in particular be coextruded together with the base wall 38 and the guide extension 40 explained in more detail below, with the front area 36 and the strip-shaped protective flap 26 and the TPE connecting bridges 64 and 66 explained below.

A guide extension 40 projects upwardly away from the base wall 38 and is formed integrally therewith. This guide extension 40 comprises a top arranged widened end head 42, an underlying extension wall area of smaller wall thickness and an extension wall area of further reduced wall thickness which forms the connection with the base wall 38.

The displaceable front area 36 is divided into a path leg 48 with a stepped course, which is formed by a rear receiving space 60 with internal thermal insulation contact side 50 and outer plaster side 55 and with a front path leg section with inner plaster side 52 and outer plaster side 54, and into a at the lower outer end of the outer plaster side 55 and outwardly extending plaster end side 56.

The receiving space 60 is dimensioned such that the front end of the end head 42 is at a small distance from the upper wall when the guide extension 42 is completely located in the receiving space 60 and accordingly when the rear end surface of the side walls 50 and 55 of the receiving space is in contact with the front of the base wall 38 of the receiving space 60 is positioned.

At the lower end of the inner sides of the receiving space 60, opposing guide projections 62 are attached and extend so far inward, relative to the axis of symmetry of the receiving space 60, that they receive and guide the guide extension 40 therebetween. In the in Figure 2 The position of the guide extension 40 shown in the figure, the guide projections 62 engage in the lowermost area of the guide extension 40 with reduced wall thickness and hold this guide extension 40 and thus the entire base area 34 with respect to the displaceable front area 36 in the minimum displacement position. The guide projections 62 can consist of a plastic material that is softer than the material of the displaceable front area 36.

If one imagines that the TPE connecting bridges 64 and 66, which will be described in more detail below, are severed, the front area 36 can be displaced with respect to the base area 34, namely up to a maximum displacement position in which the guide projections 62 on the end head 42 attach. In this way, movements between the thermal insulation / plaster layer and the building component can be compensated for in a particularly advantageous manner.

The upper path leg section extends upward from a central region of the upper wall of the receiving space 60. The inner plaster side 52 and the outer plaster side 54 of the upper path leg section, the outer plaster side 55 of the outer wall of the receiving area 60 and the plaster end side 56 are provided with a channel profile 58 in order to enlarge the surface to which the plaster adheres and thus a better one To create a connection with the plaster. This channel profile 58 can, as in Figure 2 can be seen, also extend over the front of the front wall of the receiving space 60.

On the outer plaster side 54 of the Wegrag leg 48 is an in Figure 2 Reinforcing fabric section 22 extending to the front is attached, specifically by means of an ultrasonic welding 20 shown here as an example.

The connecting bridge between the base body 34, 36 and the strip-shaped protective flap 26 is in the second plastering strip 32 as a first TPE connecting bridge 64 between the outer end of the base wall 38 and the lower section of the inner end of the strip-shaped protective flap 26 and as a second connecting bridge 66 between the outer end of the cleaning end side 56 and the upper portion of the inner end of the strip-shaped protective flap 26. These TPE connection bridges 64 and 66 can also be referred to as connection strips.

Like the TPE connecting bridge 30, the TPE connecting bridges 64 and 66 are also made from a plastic material that is softer than the material of the base area 34, the displaceable front area 36 and / or the strip-shaped protective flap 26, in order, on the one hand, to provide sufficient stability for the strip-shaped protective flap 26 and, on the other hand, to ensure that the connecting bridges 64 and 66 can be separated easily and reliably and thus that the strip-shaped protective tab 26 can be removed easily and safely.

For this purpose, the connecting bridges 64 and 66 are made in particular from a TPE, that is to say a thermoplastic elastomer, which offers these properties.

A particularly suitable manufacturing method for the second plaster strip 32 is the manufacturing method of coextrusion. The base area 34 with the exception of the protective lip 44 and the adhesive strip 46 to be applied later, the displaceable front area 36 with the exception of the guide projections 62 and the reinforcement fabric section 22 to be applied later and the strip-shaped protective flap 26 with the exception of the adhesive layer 28 to be applied later can be made of a relatively hard plastic material , in particular from hard PVC, and at the same time the protective lip 44, the guide projections 62 and the connecting bridges 64 and 66 can be coextruded from one or more softer plastic materials. Preferably, the protective lip 44, the guide projections 62 and the connecting bridges 64 and 66 can be coextruded from a common softer plastic material, in particular from a thermoplastic elastomer TPE.

The advantages of forming the connecting bridges 64 and 66 from a softer plastic material correspond to the advantages indicated above with reference to the first plastering strip 2. In short, the plastering strip with such connecting bridges 64 and 66 can be produced safely and with fewer rejects , and the strip-shaped protective flap 26 can be separated more easily and safely, especially in cold temperatures.

The result is a soft outer edge for the cleaning end side 56 and the base wall 38, which both avoids injuries and improves the appearance.

In addition, the connecting bridges 64 and 66 can have a thinner material thickness in their middle in order to ensure a predetermined separation point and a uniform edge profile there.

As an alternative to the formation of two connecting bridges 64 and 66, only one connecting bridge can be provided, either between the outer end of the base wall 38 and the inner end of the strip-shaped protective flap 26 or between the outer end of the cleaning end side 56 and the inner end of the strip-shaped protective flap 26.

When assembling the second plaster strip 32, there need not be a gap. The plastering strip 32 is placed with the thermal insulation contact side 50 on the thermal insulation and with the adhesive strip 46 on the building component and glued. The protective film is then stretched over the building component and fixed to the adhesive layer 28. Then the front area 36 is plastered in. The plaster layer extends over the entire area of the displaceable front area 36 provided with channel profiling 58, i.e. over the inner plaster side 52 and outer plaster side 54 of the front leg section, over the front and outer wall of the receiving area 60 and over the cleaning end side 56 up to the cleaning end edge, which is defined by the end of the cleaning end side 56. In addition, the plaster material also penetrates the reinforcement fabric section 22.

After the plastering has taken place, the TPE connecting bridges 64 and 66 are separated, for example pulled off by hand, if necessary by cutting the ends of the connecting bridges 64 and 66. Thus, the strip-shaped protective flap 26 can be separated in a simple manner.

By severing the connecting bridges 64 and 66, which previously held the base area 34 and the displaceable front area 36 together via the strip-shaped protective flap 26, the displaceable front area 36 is now decoupled from the base area 34 and can be separated by the construction with the guide extension 40, end head 42 and receiving space 60 with guide projections 62 move relative to the base wall 38 and thus compensate for movements between the thermal insulation and plaster layer and building component.

The second plastering strip 32 is a two-part plastering strip described by way of example, in which two areas 34 and 36 can be shifted against one another in order to compensate for movements between the thermal insulation / plaster layer and building component.

The invention also covers other two-part plaster strips, in particular two-part plaster strips that are at least partially inserted into a gap between the thermal insulation and the building component.

List of reference symbols

2

first plastering strip

4th

Base body

6

Base wall

8th

Thermal insulation system side (gap side)

10

Away leg

12

Thermal insulation system side (surface side)

14th

Plaster side

16

Cleaning end

18th

Channel profiling

20th

Ultrasonic welding

22nd

Reinforcement fabric section

24

Adhesive strips

26th

strip-shaped protective flap

28

Adhesive layer

30th

TPE connecting bridge

32

second plastering strip

34

Base area

36

sliding front area

38

Base wall

40

Guide process

42

End head

44

Protective lip

46

Adhesive tape

48

Away leg

50

Thermal insulation system side (surface side)

52

inner plaster side

54

outer plaster side

55

outer plaster side

56

Cleaning end

58

Channel profiling

60

Recording room

62

Leadership lead

64

first TPE connecting bridge

66

second TPE connection bridge

Claims (12)

1. A plastering strip (2) for placement at a transition between a component of a building, in particular a window or door frame, window sill, beam, metal connection or pilaster, and a thermal insulation and/or a layer of plaster, comprising:

   a base body (34, 36) having a portion intended to be embedded in a layer of plaster; and

   a strip-shaped protective flap (26) adapted to optionally have a protective film for the building component attached thereto;

   the strip-shaped protective flap (26) being connected to the base body (34, 36) via a connecting bridge (64, 66),

   characterised in that

   the connecting bridge (64, 66) comprises a, with respect to the material of the base body (34, 36), softer plastics material so that, after plastering, the strip-shaped protective flap (26) is separable from the base body (34, 36) of the plastering strip (32) by separating the connecting bridge (64, 66) along the length of the same;

   the portion of the base body (34, 36) intended to be embedded in a layer of plaster is provided in the form of a projecting plastering leg (48) to be covered by plaster material; and

   the connecting bridge is provided in the form of a first connecting strip (64) between the strip-shaped protective flap (26) and the base wall (38), in particular an end of the base wall (38), and in the form of a second connecting strip (66) between the strip-shaped protective flap (26) and the projecting plastering leg (48) with the plaster edge side (56), in particular the end of the plaster edge side (56).
2. A plastering strip (32) according to claim 1,
   wherein the base body (34, 36) further comprises a portion (34) attachable to the building component.
3. A plastering strip (32) according to claim 1 or 2,
   wherein the connecting bridge (64, 66) comprises a thermoplastic elastomer TPE and/or wherein the base body (34, 36) and the strip-shaped protective flap (26) comprise a hard PVC.
4. A plastering strip (32) according to any of the preceding claims,
   wherein the connecting bridge (64, 66) is manufactured together with the base body (34, 36) and the strip-shaped protective flap (26) by extrusion/coextrusion.
5. A plastering strip (32) according to any of the preceding claims,
   wherein the material thickness in the region of the connecting bridge (64, 66) is lower than in the adjoining end portions of the base body (34, 36) and the strip-shaped protective flap (26).
6. A plastering strip (32) according to any of the preceding claims,
   wherein the material thickness of the connecting bridge (64, 66) is lower in the central portion thereof than in the end portions thereof by which the connecting bridge (64, 66) adjoins the end portions of the base body (34, 36) and the strip-shaped protective flap (26).
7. A plastering strip (32) according to any of the preceding claims,
   wherein the portion of the base body (34, 36) that is attachable to the building component is provided in the form of a base wall (38).
8. A plastering strip (32) according to any of the preceding claims,
   wwherein the plastering leg (48) has a stepped course; and/or wherein the base wall (38) and the projecting plastering leg (48) along with the plaster edge strip (56), upon severing of the strip-shaped protective flap (26) along the connecting bridge (64, 66), are designed to be mutually displaceable.
9. A plastering strip (32) according to any of the preceding claims,
   wherein the base wall (38) and the projecting plastering leg (48) are in a guiding connection relative to each other which permits relative movement of the base wall (38) with respect to the projecting plastering edge (48) with the plaster edge side (56).
10. A plastering strip (32) according to any of the preceding claims,
    wherein the material of the connecting bridge (64, 66) is selected on the one hand so as to impart sufficient rigidity to the connecting bridge (64, 66), so that the strip-shaped protective flap (26) during assembly and plastering is held in position with respect to the base body (34, 36) of the plastering strip (32), in particular abuts the building component, and at the same time such that the strip-shaped protective flap (26) can be severed easily and regardless of the temperatures prevailing.
11. A building corner comprising a plastering edge (32) according to any of the preceding claims, which has a portion (34) of the base body (34, 36) fixed to the building component, has a further portion (36) of the base body (34, 36) abutting the thermal insulation and embedded in a layer of plaster, and in which a protective film is fixed to the strip-shaped protective flap (26).
12. A building corner comprising a plastering edge (32) according to any of the claims 1 to 10, which has a portion (34) of the base body (34, 36) fixed to the building component, has a further portion (36) of the base body (34, 36) abutting the thermal insulation and embedded in a layer of plaster, and in which the strip-shaped protective flap (26) is severed from the base body (34, 36) by separating the connecting bridge (64, 66) of soft plastics material.

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