Termination rail

Abstract

An end rail (2) according to the invention for building thermal insulation (6) or building sound insulation comprises: a first leg (10) which is provided for fastening to the building; and a second leg (12) which is provided for bearing against an end face of the insulation (6) and which projects substantially at a right angle from the first leg (10); wherein the second leg (12) comprises at least partially a foamed plastic material or a foamed plastic composite material; wherein the foamed plastic material or the foamed plastic composite material has a density reduced by 5-95% compared to the density of the pure or solid plastic material.comprising a plastic composite material; and wherein the second leg (12) has a plurality of integrated stiffeners to increase stiffness and / or stability; further comprising an outer strip (22) which is formed separately from the end rail (2) and is coupled or can be coupled to the end rail (2) in a positionally precise manner by means of a plug connection; wherein the plug connection is formed as an insertion extension (24) projecting substantially at a right angle from a perpendicular outer leg of the outer strip (22) and as an insertion recess (34) on an end side of the second leg (12) for receiving the insertion extension (24); and wherein the outer strip (22) and the second leg (12) are coupled or can be coupled to each other in a positionally precise manner by the insertion extension (24) of the outer strip (22) being inserted or being able to be inserted into the insertion recess (34) of the second leg (12).

Description

[0001] The invention relates to a finishing rail for building thermal insulation or building sound insulation.

[0002] From the Figure 3 EP 3 118 388 B1 discloses a finishing rail comprising an angle rail and an attached outer strip. The first leg of the angle rail is designed to be attached to a structure, for example a wall, and the thermal insulation is installed such that its building-facing side rests against the first leg and above it against the wall, and that its underside rests on the second leg of the angle rail.

[0003] While such a finishing strip provides a reliably insulated lower edge for building thermal insulation, there is a need for a more cost-effective solution that maintains the required stability and sealing properties.

[0004] It is therefore an object of the present invention to provide a finishing rail for building thermal insulation or building sound insulation that can be manufactured more cost-effectively and yet has the required stability and good sealing properties.

[0005] This problem is solved by the subject matter of the independent patent claim. Advantageous further developments result from the dependent patent claims.

[0006] A finishing rail according to the invention for building thermal insulation or building sound insulation comprises: a first leg intended for attachment to the structure; and a second leg intended for abutment against a termination end face of the insulation and extending substantially at a right angle from the first leg; wherein the second leg (12) comprises at least part of a foamed plastic material or a foamed plastic composite material; wherein the foamed plastic material or the foamed plastic composite material has a density reduced by 5-95% compared to the density of the pure or solid plastic material or plastic composite material; and wherein the second leg (12) has a plurality of integrated stiffeners to increase stiffness and / or stability.

[0007] According to an insight underlying the invention, by making the second leg, intended for contact with a terminal end face of the insulation, at least partially composed of a foamed plastic material or a foamed plastic composite material with a density reduced by 5 to 95% compared to the density of the pure or solid plastic material or composite material, a significant reduction in material usage and thus a significant cost reduction can be achieved. The lower the density, the greater the reduction in material and costs.

[0008] According to a further finding underlying the invention of the inventors, the second leg is at least partially formed with such a foamed plastic material or foamed plastic composite material according to the invention.

[0009] Although the first leg, intended for attachment to the structure, may at least partially consist of a foamed plastic material or a foamed plastic composite material, it is advantageous for the reliable attachment of the end rail to the structure if the first leg is made of pure or solid plastic material or plastic composite material.

[0010] However, according to a further finding underlying the invention by the inventors, the stability of the second leg decreases all the more as the density of the foamed plastic material / plastic composite material decreases.

[0011] In order to nevertheless maintain or establish the required stiffness and / or stability of the second leg and the end rail as a whole, the second leg has a plurality of integrated stiffeners.

[0012] Thus, according to the invention, a particularly advantageous combination is achieved, namely a finishing rail that can be manufactured with less material and therefore cost-effectively and resource-efficiently, while at the same time ensuring the stiffness and / or stability required for the use of the finishing rail through the majority of integrated stiffeners of the second leg.

[0013] To design one of the two legs of a finishing rail, and in particular the second leg of a finishing rail, from a plastic material / plastic composite material that is at least partially foamed, seemed absurd until now because, unlike, for example, plastering strips that are placed at the transition between a window or door frame and thermal insulation / a building wall and / or a layer of plaster on it, such a finishing rail has a load-bearing function.

[0014] According to a basic idea of ​​the inventors, at least a foamed plastic material / plastic composite material can now be used for the second leg if, in order to increase or maintain stiffness and / or stability, a plurality of integrated stiffeners are provided for the second leg.

[0015] According to a first embodiment of the invention, the end cap is 1 to 10% lighter than an end cap of the same construction made of pure or solid plastic material or plastic composite material. Such a weight saving results in a considerable reduction in the amount of material used, which saves costs and conserves resources. End caps according to the invention are sold in long lengths in practice.

[0016] According to a further embodiment of the invention, the plurality of integrated stiffeners are designed as a plurality of projections, which extend upwards, in particular at an approximately right angle, from a base wall of the second leg towards the end face of the insulation. The projections are designed, in particular, to engage with or anchor in the end face of the insulation.

[0017] Such integrated stiffeners provide the necessary rigidity and / or stability. In the installed state, the upper ends of the projections rest against, engage with, or are anchored to the end face of the insulation.

[0018] According to a further embodiment of the invention, the projections each have a length, measured upwards from the upper plane of the second leg, particularly towards the end face of the insulation, of 1 to 20 mm and / or a width of 1 to 4 mm. The projections are arranged, in particular, equidistantly across the width of the second leg. There can be 4 to 20 projections.

[0019] These embodiments represent a particularly advantageous combination of material savings with sufficient stiffness and / or stability.

[0020] According to a further embodiment of the invention, at least one projection, viewed in cross-section, has the shape of a triangle, wherein the tip of the projection is directed inwards, in the direction of the first leg.

[0021] According to a further embodiment of the invention, at least one projection, viewed in cross-section, has the shape of a quadrilateral or polygon extending upwards out of the plane of the second leg.

[0022] According to a further embodiment of the invention, at least one projection, viewed in cross-section, has a hook or angle shape, with an upright section extending upwards from the second leg and with a hook section extending inwards from its upper end towards the first leg or with a hook section extending outwards from its upper end away from the first leg.

[0023] According to a further embodiment of the invention, at least one projection, viewed in cross-section, has an X-shape, with two oblique, intersecting legs extending upwards from the second leg.

[0024] According to a further embodiment of the invention, at least one projection, viewed in cross-section, has an arc shape, with an arc extending upwards out of the plane of the second leg.

[0025] The different designs and shapes of the projections allow for adaptation to the specific building situation and the type of thermal or acoustic insulation used. Each of these designs and shapes has its own individual advantages, in particular supporting or resting the insulation with its end face on the projection, or the point or hook engaging with or anchoring into the end face of the insulation, or possible locking mechanisms against the end face of the insulation.

[0026] Simultaneously, the specific shape of the projections also influences the overall stiffness and / or stability of the second leg. For example, an X-shape or arc shape results in a greater integrated increase in stiffness or stability than a hook or angle shape.

[0027] According to a further embodiment of the invention, the majority of projections each have the same shape, in particular the shape of a triangle, a square or polygon, a hook or angle, an X or an arc.

[0028] Alternatively, the majority of protrusions have two or more shapes selected from the following group of shapes: triangle, square or polygon, hook, angle, X and arc.

[0029] Because the majority of the protrusions have the same shape or each implement two or more forms, an individual stiffness and stability profile can be achieved for the respective installation situation.

[0030] According to a further embodiment of the invention, the plurality of integrated stiffeners is designed as a first plurality of, in particular, hollow projections, which extend upwards from a base wall of the second leg, in particular at an approximately right angle towards the end face of the insulation, and as a second plurality of projections, which extend downwards from a base wall of the second leg, in particular at an approximately right angle away from the end face of the insulation.

[0031] The first plurality of projections and the second plurality of projections can be arranged offset from each other when viewed in the direction of the second leg.

[0032] The first plurality of projections and the second plurality of projections can, viewed in cross-section, each have the shape of a triangle, square or polygon, hook, angle, X or an arc, extending upwards or downwards out of the plane of the second leg.

[0033] These designs allow for a particularly good compromise between saving material while simultaneously increasing / maintaining the required stiffness and / or stability.

[0034] A particularly advantageous stability and stiffness profile is achieved by projections extending upwards and downwards from the base wall of the second leg, especially when the upper and lower projections are arranged offset from each other.

[0035] By making protrusions hollow, further material and cost savings and resource conservation can be achieved.

[0036] As described above, in this embodiment the upper and lower projections can each have an individual shape to suit the respective installation situation, and different combinations of projection shapes can be implemented for the upper and / or lower projections.

[0037] According to a further embodiment of the invention, the base wall of the second leg and the projections are each made of foamed plastic material or plastic composite material. This allows for a particularly high reduction in the amount of material used, and thus significant material and cost savings as well as resource conservation, while simultaneously maintaining sufficient stiffness and / or stability.

[0038] Alternatively, the base wall of the second leg is made of unfoamed, pure or solid plastic material or plastic composite material, and the projections are made of foamed plastic material or plastic composite material.

[0039] In another alternative, the base wall of the second leg is made of foamed plastic material or foamed plastic composite material, and the projections are made of unfoamed, pure or solid plastic material or plastic composite material.

[0040] This allows for particularly good stiffness and / or stability, while at the same time reducing the amount of material used, thus saving costs and materials and conserving resources.

[0041] According to a further embodiment of the invention, the majority of integrated stiffeners are designed as a cavity structure of the second leg.

[0042] According to a further embodiment of the invention, the cavity structure of the second leg comprises two parallel walls, namely an upper and a lower wall, and a plurality of transverse webs integrally formed with the upper and lower walls.

[0043] The crossbeams connect the lower and upper walls. A cavity is formed between each pair of adjacent crossbeams.

[0044] The first limb can also have a hollow structure.

[0045] If the second leg is designed with a hollow structure, this hollow structure alone results in material and therefore cost savings compared to end rails where the second leg has approximately the same thickness but is solid. This cost saving is further enhanced if at least part of this hollow structure is made of a foamed plastic material or a plastic composite material with reduced density. At the same time, however, the required stiffness and / or stability is ensured.

[0046] According to a further embodiment of the invention, the crossbars and the cavities are arranged, in particular equidistantly, across the width of the second leg.

[0047] It can include 4 to 20 crossbeams and a corresponding number of cavities.

[0048] The crossbars can each have a length, measured from the upper level of the lower wall upwards to the lower level of the upper wall, of 1 to 20 mm and / or a width of 0.5 to 3 mm.

[0049] The cavities can each have a height of 1 to 20 mm and / or a width of 10 to 50 mm.

[0050] These designs have proven to be particularly practical and well-suited for most installation positions.

[0051] According to a further embodiment of the invention, the crossbars connect the lower and upper walls essentially at right angles to each other, and the cavities between adjacent crossbars are thus essentially rectangular in shape.

[0052] According to a further embodiment of the invention, the cross webs, viewed in cross-section, have an inclined course from the lower to the upper wall, and the cavities between each adjacent cross webs are thus essentially parallelogram-shaped.

[0053] According to a further embodiment of the invention, the cross webs, viewed in cross-section, have an inclined course from the lower to the upper wall, wherein adjacent cross webs each have a substantially opposite slope, so that the cavities between two adjacent cross webs are each trapezoidal in shape.

[0054] According to a further embodiment of the invention, the crossbars, viewed in cross-section, have an inclined course from the lower to the upper wall, wherein adjacent crossbars each have a substantially opposite slope and are joined to one another, so that the crossbars describe a zigzag pattern and the cavities between two adjacent crossbars are each triangular in shape and overall describe a course of alternately rotated triangles.

[0055] According to a further embodiment of the invention, the cross ribs, viewed in cross-section, have an inclined course from the lower to the upper wall, and two cross ribs are designed to cross over each other and form an X-shaped pair of cross ribs, so that the cavities below and above the intersection point of the pair of cross ribs are each triangular in shape and the cavities between two adjacent pairs of cross ribs are each hexagonal in shape.

[0056] These specific designs of the crossbars and cavities allow for material savings while simultaneously achieving stiffness / stability adapted to the respective installation situation.

[0057] According to a further embodiment of the invention, the lower and upper walls of the second leg and the cross webs are each made of foamed plastic material or plastic composite material.

[0058] Alternatively, the lower and upper walls of the second leg are each made of foamed plastic material or plastic composite material, and the crossbars are each made of unfoamed, pure or solid plastic material or plastic composite material.

[0059] This results in particularly good combinations of material savings while maintaining / increasing stiffness / stability.

[0060] According to a further embodiment of the invention, the plurality of integrated stiffeners are designed as a stiffening layer made of metal or of a plastic, in particular of a glass fiber reinforced plastic, integrated into the second leg. The integrated stiffening layer extends over at least a large part of the width of the second leg.

[0061] This embodiment also results in a saving of material used, and thus a large saving in material and costs as well as resource conservation, while maintaining sufficient stiffness and / or stability.

[0062] According to a further embodiment of the invention, the end rail further comprises an outer strip which is formed separately from the end rail and is coupled or can be coupled to the end rail in a positionally precise manner by means of a plug connection.

[0063] By connecting an outer strip to the end rail via a plug connection, a particularly favorable and practical attachment and installation of the end rail on the construction site is achieved.

[0064] First, the end cap is attached to the masonry, particularly the lower wall area, in a suitable manner. Then, the insulation is attached to the structure, again in a suitable manner. The outer strip can then simply be inserted or attached to the end cap, especially to the second leg. Finally, the plastering is carried out. This design ensures that the outer strip does not interfere during the initial steps and can be easily connected to the end cap before the plaster layer is applied.

[0065] According to a further embodiment of the invention, the plug connection is designed as a plug-in extension extending substantially at a right angle from a vertical outer leg of the outer strip and as a plug-in recess receiving the plug-in extension at one end side of the second leg.

[0066] According to a further embodiment of the invention, the outer strip and the second leg are coupled or can be coupled to each other in a positionally precise manner by inserting or being able to insert the insertion extension of the outer strip into the insertion space of the second leg.

[0067] According to a further embodiment of the invention, the material thickness of the insertion extension and the height of the insertion space are dimensioned such that the outer strip and the second leg are fixed in precise position relative to each other when the insertion extension is inserted into the insertion space.

[0068] According to a further embodiment of the invention, the insertion extension has contact projections on its upper side and / or its lower side, in particular rounded contact projections made of a soft plastic material, especially TPE, for precise positioning of the insertion extension in the insertion space.

[0069] According to a further embodiment of the invention, the length of the insertion extension is 20-50 mm and the corresponding depth of the insertion space is somewhat larger.

[0070] According to a further embodiment of the invention, the insertion space is designed as a cavity of a cavity structure of the second leg which is not closed at the end by a transverse rib.

[0071] According to a further embodiment of the invention, an insertion area for a transverse connecting pin is provided, which is arranged in particular below the insertion extension.

[0072] A plug connection designed in this way is particularly practical and easy to produce.

[0073] According to a further embodiment of the invention, the first and second legs have an L-shape when viewed in cross-section.

[0074] According to a further embodiment of the invention, the first and second legs, viewed in cross-section, have the shape of a horizontal T, in which the section of the first leg located above the second leg, in the direction of the insulation, has a greater length than the section of the first leg located below the second leg, in the direction away from the insulation.

[0075] According to a further embodiment of the invention, an inclined support leg is provided which extends obliquely upwards from the section of the first leg located below the second leg to the underside of the first leg.

[0076] An L-shape represents the simplest and most material-saving design for the end rail.

[0077] A T-shape allows for greater stability of the second leg, particularly due to the angled end leg. It also enables the attachment of the end rail to the structure over a larger area.

[0078] According to a further embodiment of the invention, the first leg also comprises at least partially a foamed plastic material or a foamed plastic composite material.

[0079] According to a further embodiment of the invention, the first leg has a lower degree of foaming than the second leg, in particular a degree of foaming that is about 10% lower than the degree of foaming of the second leg, where degree of foaming is understood to be the volume fraction of the enclosed air, another gas or another gas mixture.

[0080] To further save material, reduce costs and conserve resources, the first leg can also consist at least partially of a foamed plastic material / plastic composite material.

[0081] According to a further embodiment of the invention, the foamed plastic material is designed as a substantially closed-cell foam plastic with a plurality of inclusion cells of air, another gas or another gas mixture, or the foamed plastic composite material is designed as a substantially closed-cell foam plastic composite material with a plurality of inclusion cells of air, another gas or another gas mixture.

[0082] According to a further embodiment of the invention, the foamed plastic material or the foamed plastic composite material has a density reduced by 5 to 70%, in particular by 40 to 60%, compared to the density of the pure plastic material or the pure plastic composite material.

[0083] According to a further embodiment of the invention, the foamed plastic material or the foamed plastic composite material has a thermal conductivity reduced by 5 to 70%, in particular by 40 to 60%, compared to the thermal conductivity of the pure plastic material or plastic composite material.

[0084] Such density ranges have proven to be particularly advantageous.

[0085] According to a further embodiment of the invention, the foamed plastic material has PVC, in particular rigid PVC, as its base material and the foamed plastic material has a density of 0.4 - 1.3 g / cm3, in particular of 0.4 - 1.0 g / cm3, and / or a thermal conductivity of 0.04 - 0.13 W / (m*K), in particular of 0.04 - 0.11 W / (m*K).

[0086] According to a further embodiment of the invention, the foamed plastic material has polystyrene as the base material, and the foamed plastic material has a density of 0.2 - 0.8 g / cm3, in particular of 0.2 - 0.7 g / cm3, and / or a thermal conductivity of 0.04 - 0.13 W / (m*K), in particular of 0.04 - 0.11 W / (m*K).

[0087] These materials with these density ranges are particularly well suited for the end rail according to the invention.

[0088] According to a further embodiment of the invention, the base plastic composite material of the foamed plastic composite material is designed as a wood-plastic composite or as a composite material made of plastic and rice husks or fibers or flour thereof or from another renewable raw material.

[0089] Such materials further contribute to cost savings and resource conservation.

[0090] According to a further embodiment of the invention, the second leg is essentially at a right angle to the first leg.

[0091] According to a further embodiment of the invention, the first and second legs are integrally formed together.

[0092] According to a further embodiment of the invention, a plurality of openings, in particular holes and elongated holes, are formed in the first leg for fastening to a building wall by means of fastening means such as screws, dowels or nails.

[0093] According to a further embodiment of the invention, an outer leg, optionally with a reinforcing fabric section and drip nose, is arranged or can be arranged on the side of the second leg facing away from the first leg.

[0094] According to a further embodiment of the invention, the first leg and the second leg are produced by coextrusion / triextrusion.

[0095] The invention also relates to a thermal insulation composite system with a house wall; with a finishing rail of the type described herein, attached to a lower end of the house wall, the first vertical leg of which is attached to the finishing rail and the second horizontal leg of which extends substantially perpendicularly outwards from the house wall; with insulation whose inner surface rests against the first vertical leg of the finishing rail and above against the house wall, and whose lower end face rests on the second leg of the finishing rail; in particular with an outer strip which is attached opposite the finishing rail, in particular inserted into a recess of the second leg or into a space between the top of the second leg and the lower end face of the insulation, and which rests with its vertical leg on the outside of the thermal insulation; in particular with a section of reinforcing mesh extending upwards from the vertical leg;and wherein, in particular, a layer of plaster is applied from the outside to the outer strip and the section of reinforcing mesh.

[0096] The applicant reserves the right to file an independent patent claim for such a thermal insulation composite system and to add features to the present claims for termination rails.

[0097] The invention is explained in detail below with reference to exemplary embodiments and the accompanying figures. Figure 1 shows a schematic view of a finishing rail in an installation situation with a building wall and thermal insulation, according to a first embodiment of the present invention; Figure 2 shows a side view of a finishing rail according to a second embodiment of the invention; Figure 3 shows a side view of a finishing rail according to a further embodiment of the invention; Figure 4shows a side view of a finishing rail according to a further embodiment of the invention; Figure 5 shows a side view of a finishing rail according to a further embodiment of the invention; Figure 6 shows a side view of an outer end of a second leg of the end rail made of Figure 5 and an outer strip inserted with its attachment extension into the insertion space at the end of the second leg, and the outer strip in an isolated, enlarged view; according to a further embodiment of the invention; Figure 7 shows a side view of a finishing rail according to a further embodiment of the invention; Figure 8 shows a side view of a finishing rail according to a further embodiment of the invention; Figure 9 shows a side view of a finishing rail according to a further embodiment of the invention; and Figure 10shows a side view of a finishing rail according to a further embodiment of the invention;

[0098] Figure 1 shows a cross-sectional view through a thermal insulation composite system with a finishing rail 2.

[0099] The end rail 2 of the Figure 1 has an L-shape with a first vertical leg 10 and a second horizontal leg 12.

[0100] The external thermal insulation composite system (ETICS) is installed at the lower end of a house wall 4 as follows. The end cap 10 is aligned with the lower end of the house wall 4 and fastened to the house wall 4 using fasteners formed by corresponding holes in the first vertical leg 10 of the end cap 4, e.g., hammer-in anchors. The second leg 12 of the end cap 2 is thus horizontally aligned. Horizontally adjoining end caps 10 are connected using suitable connectors. The insulation / insulation board 6 is then placed with its lower end face onto the top of the second leg 12 and secured with its Figure 1 left inner thigh 10 positioned after a Figure 1The adhesive (not shown) has been applied to the house wall 4. The outer strip 22 is then attached by inserting its horizontal insertion extension 24 between the lower end face of the insulation 6 and the top, in particular the upper wall 16 of the second leg 12 of the end rail 2, until its vertical leg 26 rests on the surface. Figure 1 The right outer side of the insulation rests on the insulation; a base coat of plaster may already have been applied to the outer side of the insulation 6. In this case, the vertical leg 26 rests on this base coat of plaster. The reinforcing mesh section 30 is then attached to the outer side of the insulation 6 from the outside using filler. This filler is in Figure 1not shown. Furthermore, additional reinforcing mesh, not shown, can be attached to the insulation 6, overlapping the reinforcing mesh section 30 above. After the filler has set or hardened, a layer of plaster is applied to the exterior. Finally, a coat of paint can be applied to the plaster. Base coat, filler, plaster layer, and paint are in Figure 1 not shown.

[0101] The outer strip 22 can, as in Figure 1 shown is a sloping plastering rib 28, the end of which represents a plastering edge and, at the transition between the insertion extension 24 and the sloping plastering rib 28, has a receiving space 38 for a transverse pin.

[0102] Below the insulation 6 and the second leg 12 of the end rail 2, a further layer of insulation 8 is shown. This layer has a narrower width than the upper insulation 6. The lower insulation 8 can also be glued to the outside of the building wall 4 using a suitable adhesive. It can extend downwards into the ground.

[0103] The first leg 10 of the end rail 2 is made of pure or solid plastic material. The second leg 12 of the end rail 2, however, has a hollow structure.

[0104] This structure is formed by a lower wall 14, a parallel upper wall 16, and crossbars 18 connecting the lower wall 14 to the upper wall 16. The crossbars 18 are each X-shaped. Several pairs of crossbars 18 are arranged side by side, each pair having two oblique crossbars with different orientations that intersect approximately at the level of the central horizontal plane between the lower wall 14 and the upper wall 16. A hexagonal space exists between each pair of adjacent crossbars 18, and the areas of each pair of crossbars 18 below and above the intersection point are triangular.

[0105] The front one, in Figure 1The end of the second leg 12 shown on the right is formed with an outwardly and downwardly extending point, in particular a triangular point. This facilitates the insertion of the insertion extension 24 from the outside into the space between the lower end face of the insulation 6 and the upper surface, in particular the upper wall 16, of the second leg 12 of the end rail 2.

[0106] In Figure 2 The end rail 2 is now aligned with the first leg 10 on the right, i.e., in a mirror image view. Figure 1 shown. Its second, horizontal leg 12 again has a cavity structure and comprises a lower wall 14 and an upper wall 16, as well as transverse webs 18 which connect the lower wall 14 to the upper wall 16 and are essentially perpendicular to it. Thus, the cavities between two adjacent transverse webs 18 each have the shape of a rectangle.

[0107] The in Figure 2The front end 20 of the second leg 12 of the end rail 2, shown on the left, is at its upper outer, in Figure 2 The left end is finished with a chamfer. This serves, as in Figure 1 , the simpler insertion of the insertion extension 24 of the outer strip 22 between the lower end face of the insulation 8 and the top of the second leg 12.

[0108] The vertical first leg 10 extends with its lower end over the lower wall 14 of the second leg 12 further downwards. The end rail 2 of the Figure 2 It thus essentially has a T-shape when the drawing sheet is rotated 90° counterclockwise. The section of the first leg 10 located above the second leg 12 in the direction towards the insulation 8 of the first leg 10 has a greater length than the section of the first leg 10 located below the second leg 12 in the direction away from the insulation 8.

[0109] The end rail 2 of the Figure 3 largely corresponds to the end rail 2 from Figure 2 Identical elements are marked with the same reference symbols and are not described again to avoid repetition.

[0110] The end rail 2 of the Figure 3 It also includes an additional inclined support leg 32, which extends obliquely upwards from the section of the first leg 10 located below the second leg 10 towards the underside, in particular towards the lower wall 14 of the first leg 12. Figure 3This inclined support leg 32 is attached, in particular, to a position on the lower wall 14 of the second leg 12 that corresponds to the position of the rightmost crossbar 18. Such an inclined support leg increases the overall stability of the second leg 12 and the end rail 2, and prevents the second leg 12 from sagging or buckling downwards.

[0111] In Figure 4 is a finishing rail 2 with the orientation according to Figure 1 shown, namely with the first leg 10 arranged vertically on the left. The second leg 12 in turn has a cavity structure with a lower wall 14 and an upper wall 16, which run parallel to each other and perpendicular to the first leg 10.

[0112] The two walls 14 and 16 are connected by diagonal crossbars 18. These have a zigzag pattern with the following progression, viewed from left to right, i.e., from the first leg 10 to the outer end 20 of the end rail 2: A crossbar runs diagonally downwards and to the right from the upper wall 16 to the lower wall 14. Another crossbar 18 is attached to this, running diagonally upwards from the lower wall 14 to the upper wall 16. Another crossbar 18 is attached to this, running diagonally downwards from the upper wall 16 to the lower wall 14, and so on.

[0113] Such an arrangement of crossbars 18 creates a pattern of adjacent triangles, with triangles standing on their base and triangles standing on their point alternating.

[0114] On the outer, in Figure 4At the right-hand end of the second leg 12, it bends diagonally downwards. In other words, the upper wall 16 and the lower wall 14 are angled downwards at an angle of 10 to 40°, but remain parallel to each other even in this end region. The cross webs 18 are also arranged in this bent end region 20. The right, outer end of the second leg 12 is formed by a vertical end wall. The downwardly bent front end 20 of the second leg 12, with its sloping upper surface of the upper wall 16, facilitates the insertion of a plug-in extension 24 of an outer strip 22 into the space between the lower end face of the insulation 8 and the upper surface, in particular the upper wall 16, of the second leg 12. The end rail 2 of the Figure 4 It in turn has essentially an L-shape.

[0115] The in Figure 5The end rail 12 shown largely corresponds to the one in Figure 2 shown end rail 2, with the following two differences: 1. The end rail 2 has an L-shape, and no section of the first leg 10 extends below the second leg 12. 2. The in Figure 5 The outermost end of the second leg 12 of the end rail 2, located on the left, is open, i.e., it is formed without an end wall and thus creates a insertion space 34 for an insertion extension 24 of an outer strip 22. The outermost extension is located in Figure 5 The left-hand cavity of the cavity structure of the second leg 12 is formed without a closing wall or without a left transverse web 18. The outer, in Figure 5The left-hand ends of the lower wall 14 and the upper wall 16 are rounded, in particular the upper wall 16 is beveled downwards and the lower wall 14 is beveled upwards to facilitate the insertion of an insertion extension 24 of an outer strip 22.

[0116] In Figure 6 The insertion position of the outer strip 22 relative to the end rail 2 is shown above. Figure 6 , below, the outer strip 24 is shown in isolation.

[0117] The outer strip 22 includes a horizontal, in Figure 6 the insertion extension 24 shown on the left and a vertical leg 26 attached to it, on the side of which in Figure 6 On the outer side shown on the right, for example, a section of reinforcing fabric 30 is attached by means of ultrasonic welding.

[0118] The outer strip 22 has an approximately T-shape if one imagines the outer strip as rotated 90° counterclockwise to the left in the drawing plane, with a shorter right section and a longer section of the vertical leg 26.

[0119] A receiving space 38 for a transverse pin is arranged on the area of ​​the vertical leg 26 located below the insertion extension 24. Adjacent outer strips 22 can be positioned flush against each other by means of such transverse pins.

[0120] The insertion extension 24 is provided on its upper and lower sides with contact projections 36, in particular made of a softer plastic material, especially a thermoplastic elastomer (TPE). These ensure, as can be seen in Figure 6As can be clearly seen above, this ensures a tight seal and a secure, non-slip arrangement of the outer strip 22 with its insertion extension 24 in the insertion space 34 of the second leg 12 of the end rail 2. The length of the insertion extension 24 is, in particular, equal to or slightly shorter than the depth of the insertion space 34 at the end region of the second leg 12 of the end rail 2. The outer end of the insertion extension 24, located on the left below in Figure 6, is rounded or tapered to facilitate the insertion of the outer strip 22 with its insertion extension 24 into the insertion space 34 of the second leg 12 of the end rail 2. The material thickness in Figure 6Viewed from top to bottom, the insertion extension 24 is slightly less than the inner clear height of the insertion space 34. However, the material thickness of the insertion extension 24, together with the contact projections 36, is slightly greater than the inner clear height of the insertion extension 34. When the insertion extension 24 is inserted into the insertion space 34, the contact projections 36, made of a softer plastic material, are compressed slightly, thus ensuring a clamping fit of the insertion extension 24 in the insertion space 34.

[0121] In Figure 7Another end rail 2 is shown, this time with the first vertical legs 10 positioned on the right. The second leg 12 has a base wall 40, perpendicular to the first leg 10, and a series of equidistant, spaced-apart projections 42 extending upwards from the base wall 40. In this non-limiting embodiment, these projections have a substantially rectangular shape and are approximately the same height as the base wall 40. Between adjacent projections 42, a recess is formed when viewed from above. The end rail 2 of the Figure 7 It in turn has an L-shape.

[0122] In Figure 8 Another end rail 2 is shown, this time with the first leg 10 oriented vertically to the left. From this, the second leg 12 extends to the right, i.e., outwards, with its base wall 40. According to Figure 8The projections 42 are each triangular in shape and extend obliquely inwards and upwards from the upper side of the base wall 40. Their height is slightly greater than the height of the base wall 40. The tips of the triangular projections 42 point obliquely inwards. Figure 8 so to the left and can act like barbs. The outer one, in Figure 8 The right-hand end of the second leg 12 again has an approximately triangular section with a sloping top. This facilitates the insertion of a plug-in extension 24 of an outer strip 22 into the space between the lower end face of the insulation 8 and the top of the second leg 12. The end rail 2 of the Figure 8 It in turn has an L-shape.

[0123] The in Figure 9The end rail 2 shown is again shown with the first vertical leg 10 positioned on the left. On the second leg 12, which extends obliquely outwards from the lower end of the first leg 10, in Figure 9 Extending to the right, a series of different projections are arranged side by side as examples, namely projections 42a with an X shape, projections 42b with a hook shape, in particular with hooks facing inwards, projections 42c with an arc shape, and projections 42d, which represent a combination of a hook facing outwards, a rectangular projection and a hook facing inwards.

[0124] The X-shaped projections 42a each have two oblique and intersecting legs extending upwards from the second leg 12. Their height corresponds to 2 to 3 times the height of the second leg 12.

[0125] The projections 42b with hook or angle shape have an upright section extending upwards from the second leg 12 and a hook section extending inwards from its upper end towards the first leg 10.

[0126] The projections 42c have an arc shape with a circular arc extending upwards from the plane of the second leg 12 with an inner opening.

[0127] The projections 42d each combine a hook with an upright section extending upwards from the second leg 12 and with a hook section extending outwards from its upper end in a direction away from the first leg 10, a square projection extending out of the plane of the second leg 12, and a hook-shaped section having an upright section extending upwards from the second leg 12 and with a hook section extending inwards from its upper end towards the first leg 10.

[0128] The outer, in Figure 9 The right-hand end of the second leg is again triangular in shape, to facilitate the insertion of an insertion extension 24 of an outer strip 22.

[0129] Figure 10Figure 2 shows another end rail 2 with the first vertical leg 10 positioned on the left. A base wall 40 projects outwards to the right from a lower end of the first leg 10. A plurality of upper hollow rectangular projections 46 are arranged side by side on the upper surface of the base wall 40. Likewise, a plurality of lower hollow rectangular projections 44 are arranged on the underside of the base wall 40. The lower hollow rectangular projections 44 and the upper hollow rectangular projections 46 are offset from each other. In other words, a lower hollow rectangular projection 44 is arranged at each location where there is a gap between adjacent upper hollow rectangular projections 46. Likewise, an upper rectangular hollow projection 46 is arranged at each location where there is a gap between two lower hollow rectangular projections 44.The outer end of the second leg 12 of the end rail 2, located on the right in Figure 10, is formed by an inclined insertion wall. Due to the end surface being inclined from bottom outside to top inside, an insertion extension 24 of an outer strip 22 can be easily inserted into the space between the lower end face of the insulation 6 and the top of the second leg 12.

[0130] The in Figures 1 to 6 The end rails 2 shown each have a second leg 12 with a cavity structure. This cavity structure forms a plurality of integrated stiffeners, each of which is formed by the cross webs 18. For this purpose, the Figures 1 to 6Different variants have been shown. As explained in detail in the general description section, the second leg 12 comprises at least a portion of a foamed plastic material or a foamed plastic composite material, which has a density reduced by 5 to 95% compared to the density of the pure or solid plastic material / plastic composite material. This allows for the use of end rails according to the invention, as described in the Figures 1 to 6 They are shown to be manufactured with significantly less material and therefore more cost-effectively and resource-efficiently. To nevertheless ensure sufficient stiffness and stability, the second leg features a number of integrated stiffeners, which are located in the Figures 1 to 6 each is designed as a cavity structure.

[0131] According to one embodiment of the invention, the upper wall 16 and the lower wall 14 of the second leg 12 and the cross webs 18 are each made of foamed plastic material / plastic composite material. This results in a particularly high weight and material saving, which significantly reduces material costs and conserves resources.

[0132] According to a further embodiment of the invention, only the lower wall 14 and the upper wall 16 of the second leg 12 are made of foamed plastic material / plastic composite material, and the cross webs 18 are each made of unfoamed, pure or solid plastic material / plastic composite material. In this case, the weight saving is somewhat less due to the fact that the cross webs are each made of unfoamed, pure or solid plastic material / plastic composite material, but the stability and stiffness are comparatively high.

[0133] In the embodiments of the Figure 7 , 8 and 9 The integrated stiffeners of the second leg 12 are designed as a plurality of projections 42, 42a, 42b, 42c or 42d, which extend upwards from a base wall 40. These projections can, in particular, engage with or anchor themselves in the end face of the insulation 8.

[0134] In the embodiment of the Figure 10 The integrated stiffeners of the second leg 12 are designed as lower and upper hollow rectangular projections 44, 46. The insulation 8 rests on the upper hollow rectangular projections 44, 46.

[0135] According to a first embodiment of the invention, both the base wall 40 and the projections 42, 42a to 42d and 44 and 46 are each made of foamed plastic material / plastic composite material. This results in a particularly high weight and material saving, which significantly reduces material costs and conserves resources.

[0136] According to another embodiment of the invention, only the base wall 40 is formed from unfoamed, pure or solid plastic material / plastic composite material, while the projections 42, 42a to 42d and 44 and 46 are each made from foamed plastic material / plastic composite material. According to another embodiment of the invention, the base wall 40 of the second leg 12 is formed from foamed plastic material or foamed plastic composite material, and the projections 42, 42a to 42d and 44 and 46 are each made from unfoamed, pure or solid plastic material or plastic composite material.

[0137] This results in high stability and stiffness, yet still a noticeable saving in material and costs.

[0138] Furthermore, reference is made to the additional advantages and features in the general description section. Reference symbol list

[0139] 2 End rail 4 Building wall 6 Insulation 8 Insulation 10 First leg 12 Second leg 14 Lower wall 16 Upper wall 18 Crossbars 20 Front end 22 Outer strip 24 Insertion extension 26 Vertical leg 28 Slanted plaster end bar 30 Reinforcing mesh section 32 Slanted support leg 34 Insertion space 36 Abutment projections 38 Receipt space for transverse pin 40 Base wall 42, 42a, 42b, 42c, 42d Projections 44 Lower hollow rectangular projections 46 Upper hollow rectangular projections

Claims

1. End cap (2) for building thermal insulation (6) or building sound insulation, comprising: a first leg (10) intended for attachment to the building; and a second leg (12) intended for abutment against an end face of the insulation (6) and extending substantially at a right angle from the first leg (10); wherein the second leg (12) comprises at least part a foamed plastic material or a foamed plastic composite material; wherein the foamed plastic material or the foamed plastic composite material has a density reduced by 5-95% compared to the density of the pure or solid plastic material.comprising a plastic composite material; and wherein the second leg (12) has a plurality of integrated stiffeners to increase stiffness and / or stability; further comprising an outer strip (22) which is formed separately from the end rail (2) and is coupled or can be coupled to the end rail (2) in a positionally precise manner by means of a plug connection; wherein the plug connection is formed as an insertion extension (24) projecting substantially at a right angle from a perpendicular outer leg of the outer strip (22) and as an insertion recess (34) on an end side of the second leg (12) for receiving the insertion extension (24); and wherein the outer strip (22) and the second leg (12) are coupled or can be coupled to each other in a positionally precise manner by the insertion extension (24) of the outer strip (22) being inserted or being able to be inserted into the insertion recess (34) of the second leg (12).

2. End rail (2) according to claim 1, wherein the end rail (2) has a weight that is 1 to 10% lower than an end rail (2) of the same construction made of pure or solid plastic material or plastic composite material.

3. End rail (2) according to claim 1 or 2, wherein the plurality of integrated stiffeners is configured as a plurality of projections (42) which, in particular, extend upwards from a base wall (40) of the second leg, in particular at an approximately right angle towards the end face of the insulation (6); wherein the projections are configured, in particular, to engage in or anchor in the end face of the insulation (6); wherein the projections, in particular, each have a length, measured upwards from the upper plane of the second leg (12), in particular towards the end face of the insulation (6), of 1 to 20 mm and / or a width of 1 to 4 mm; and / or wherein the projections (42) are arranged, in particular, equidistantly across the width of the second leg (12); and / or wherein, in particular, 4 to 20 projections (42) are provided.

4. End rail (2) according to claim 3, wherein at least one projection (42), viewed in cross-section, has the shape of a triangle, the apex of the projection being directed inwards, in the direction of the first leg; and / or wherein at least one projection (42), viewed in cross-section, has the shape of a quadrilateral or polygon extending upwards out of the plane of the second leg (12); and / or wherein at least one projection (42b), viewed in cross-section, has a hook or angle shape, with an upright section extending upwards from the second leg (12) and with a hook section extending inwards from its upper end towards the first leg (10) or with a hook section extending outwards from its upper end in the direction away from the first leg (10);and / or wherein at least one projection (42a), viewed in cross-section, has an X-shape, with two oblique, intersecting legs extending upwards from the second leg (12); and / or wherein at least one projection (42c), viewed in cross-section, has an arc shape, with an arc extending upwards out of the plane of the second leg (12).

5. End rail (2) according to claim 4, wherein the plurality of projections (42) each have the same shape, in particular the shape of a triangle, a square or polygon, a hook or angle, an X or an arc; or wherein the plurality of projections (42) each have two or more shapes selected from the following group of shapes: triangle, square or polygon, hook, angle, X and arc.

6. End rail (2) according to claim 1 or 2, wherein the plurality of integrated stiffeners is configured as a first plurality of, in particular, hollow projections (46) which extend upwards from a base wall (40) of the second leg (12), in particular at an approximately right angle towards the end face of the insulation (6), and as a second plurality of projections (44) which extend downwards from a base wall (40) of the second leg (12), in particular at an approximately right angle away from the end face of the insulation (6); wherein the first plurality of projections (46) and the second plurality of projections (44) are arranged offset from each other when viewed in the direction of the second leg (12);and / or wherein the first plurality of projections (46) and the second plurality of projections (44), viewed in cross-section, each have the shape of a triangle, quadrilateral or polygon, hook, angle, X or arc, extending upwards or downwards out of the plane of the second leg (12), respectively.

7. End rail (2) according to one of claims 3 to 6, wherein the base wall (40) of the second leg (12) and the projections (42) are each formed from foamed plastic material or plastic composite material; or wherein the base wall (40) of the second leg (12) is each formed from unfoamed, pure or solid plastic material or plastic composite material, and the projections (42) are each made from foamed plastic material or plastic composite material; or wherein the base wall (40) of the second leg (12) is each formed from foamed plastic material or foamed plastic composite material, and the projections (42) are each made from unfoamed, pure or solid plastic material or plastic composite material.

8. End rail (2) according to claim 1 or 2, wherein the plurality of integrated stiffeners is configured as a cavity structure of the second leg (12); wherein the cavity structure of the second leg (12) comprises two parallel walls, namely an upper wall (16) and a lower wall (14), and a plurality of transverse webs (18) integrally formed with the upper wall (16) and the lower wall (14); wherein the transverse webs (18) each connect the lower wall (14) with the upper wall (16); and wherein a cavity is formed between each pair of adjacent transverse webs (18); and / or wherein the first leg (10) also has a cavity structure; and / or wherein the transverse webs (18) and the cavities are arranged, in particular, equidistantly across the width of the second leg (12); and / or wherein in particular 4 to 20 crossbars (18) and a corresponding number of cavities are provided;and / or wherein the cross ribs (18) in particular each have a length, measured from the upper plane of the lower wall (14) upwards to the lower plane of the upper wall, (16) of 1 to 20 mm and / or a width of 0.5 to 3 mm; and / or wherein the cavities in particular each have a height of 1 to 20 mm and / or a width of 10 to 50 mm.; 9. End rail (2) according to claim 8, wherein the transverse webs (18) connect the lower wall (14) to the upper wall (16) at substantially right angles and the cavities between adjacent transverse webs (18) are thus substantially rectangular; or wherein the transverse webs (18), viewed in cross-section, have an inclined course from the lower wall (14) to the upper wall (16) and the cavities between adjacent transverse webs (18) are thus substantially parallelogram-shaped; or wherein the transverse webs (18), viewed in cross-section, have an inclined course from the lower wall (14) to the upper wall (16), wherein adjacent transverse webs (18) each have a substantially opposite slope, so that the cavities between two adjacent transverse webs (18) are each trapezoidal;or wherein the cross ribs (18), viewed in cross-section, have an oblique course from the lower wall (14) to the upper wall (16), wherein adjacent cross ribs (18) each have a substantially opposite slope and are joined to one another, such that the cross ribs (18) describe a zigzag pattern and the cavities between two adjacent cross ribs (18) are each triangular and together describe a course of alternately rotated triangles; or wherein the cross ribs (18), viewed in cross-section, have an oblique course from the lower wall (14) to the upper wall (16), and each pair of cross ribs (18) are arranged to intersect and form an X-shaped pair of cross ribs, such that the cavities below and above the intersection point of the pair of cross ribs are each triangular and the cavities between two adjacent pairs of cross ribs are each hexagonal.

10. End rail (2) according to claim 8 or 9, wherein the lower wall (14) and the upper wall (16) of the second leg (12) and the cross webs (18) are each formed from foamed plastic material or plastic composite material; or wherein the lower wall (14) and the upper wall (16) of the second leg (12) are each formed from foamed plastic material or plastic composite material, and the cross webs (18) are each made from unfoamed, pure or solid plastic material or plastic composite material.

11. End rail (2) according to claim 1 or 2, wherein the plurality of integrated stiffeners is designed as a stiffening layer made of metal or of a plastic, in particular of a glass fiber reinforced plastic, integrated into the second leg (12); wherein the integrated stiffening layer extends at least over a majority of the width of the second leg (12).

12. End rail (2) according to one of the preceding claims, wherein the material thickness of the insertion extension (24) and the height of the insertion space (34) are dimensioned in particular such that the outer strip (22) and the second leg (12) are fixed in precise position relative to each other when the insertion extension (24) is inserted into the insertion space (34); and / or wherein the insertion extension (24) has, in particular, on its upper side and / or on its lower side, contact projections (36), in particular rounded contact projections (36) made of a soft plastic material, in particular TPE, for precise positional fixation of the insertion extension (24) in the insertion space (34); and / or wherein, in particular, the length of the insertion extension (24) is 20-50 mm and the corresponding depth of the insertion space (34) is dimensioned somewhat larger;and / or wherein the insertion space (34) is designed in particular as a cavity of a cavity structure of the second leg (12) which is not closed at the end by a transverse web (18); and / or wherein in particular an insertion area (38) is provided for a transverse connecting pin, which is arranged in particular below the insertion extension (24).

13. End rail (2) according to one of the preceding claims, wherein the first leg (10) and the second leg (12) have an L-shape in cross-section; or wherein the first leg (10) and the second leg (12) have the shape of a horizontal T in cross-section, wherein the section of the first leg (10) located above the second leg (12) in the direction of the insulation (6) has a greater length than the section of the first leg (10) located below the second leg (12) in the direction away from the insulation (6); and / or wherein, in particular, an inclined support leg (32) is provided, which extends obliquely upwards from the section of the first leg (10) located below the second leg (12) to the underside of the first leg (10).

14. End rail (2) according to one of the preceding claims, wherein the first leg (10) also comprises at least partially a foamed plastic material or a foamed plastic composite material; wherein the first leg (10) has a lower degree of foaming than the second leg (12), in particular a degree of foaming that is about 10% lower than the degree of foaming of the second leg (12); wherein degree of foaming is understood to be the volume fraction of the enclosed air, another gas or another gas mixture.

15. End cap (2) according to one of the preceding claims, wherein the foamed plastic material is configured as a substantially closed-cell foam plastic with a plurality of inclusion cells of air, another gas or another gas mixture, or wherein the foamed plastic composite material is configured as a substantially closed-cell foam-plastic composite material with a plurality of inclusion cells of air, another gas or another gas mixture; and / or wherein the foamed plastic material or the foamed plastic composite material has a density reduced by 5 to 70%, in particular by 40 to 60%, compared to the density of the pure plastic material.of the pure plastic composite material; and / or wherein the foamed plastic material or the foamed plastic composite material has a thermal conductivity reduced by 5 to 70%, in particular by 40 to 60%, compared to the thermal conductivity of the pure plastic material orplastic composite material; and / or wherein the foamed plastic material comprises, in particular, PVC, especially rigid PVC, as the base material, and wherein the foamed plastic material has, in particular, a density of 0.4 - 1.3 g / cm3, especially of 0.4 - 1.0 g / cm3, and / or a thermal conductivity of 0.04 - 0.13 W / (m*K), especially of 0.04 - 0.11 W / (m*K); or wherein the foamed plastic material comprises, in particular, polystyrene as the base material, and wherein the foamed plastic material has, in particular, a density of 0.2 - 0.8 g / cm3, especially of 0.2 - 0.7 g / cm3, and / or a thermal conductivity of 0.04 - 0.13 W / (m*K), especially of 0.04 - 0.11 W / (m*K); and / or wherein the base plastic composite material of the foamed plastic composite material is a wood-plastic composite or a composite material made of plastic and rice husks orfibers or flour made from it or from another renewable raw material.

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