EP2602393A2 - Sealing tape - Google Patents

Abstract

The sealing band (1) has an elongated foam body and opposite broad sides (3,4) that is placed on fusion faces and opposite narrow sides (5,6) arranged between the broad sides. A cross-section profiling (7) is provided on one of the broad sides. An elevated area (8) and a deep area (9) are arranged on two sides of a central plane of the sealing band such that the foam material produces a stronger sealing in the elevated area than in the deep area. The sealing band is structured in the elevated area or in the deep area, when an elevation or a depth is formed in the cross section.

Description

The invention relates to a sealing tape for sealing joints, with an elongated foam body and opposite, can be applied to the joint flanks wide sides and arranged between these, opposite narrow sides, wherein the sealing strip on at least one of the broad sides has a cross-sectional profiling, such that the broad side height of the sealing strip in the region of one of the narrow sides forming a height range is greater than in the region of the opposite narrow side, which forms a depth range, height range and depth range are arranged on both sides of the median plane of the sealing strip, so that when arranged in the joint, reset sealing tape in the height range, a larger Density of the foam material results, as in the depth range, wherein the sealing tape is impregnated for delayed recovery.

Such a sealing tape is for example from the DE 10 2008 020 955 B4 known. Due to the fact that zones of different compression and thus also different density of the foam material result in the sealing strip arranged in the joint, due to the cross-sectional areas of different heights, the sealing strip also has different regions with different water vapor diffusion resistance. The sealing tape is therefore in Generally arranged in the joint, that the more compressed sealing band area, which thus has a higher water vapor diffusion resistance, is arranged inside the room. The area of lower density and with lower water vapor diffusion resistance is thus arranged outside the room. This results in a gradient of the water vapor diffusion resistance from the inside of the room to the outside of the room. Such sealing tapes have been reinforced in principle, but they would have to meet a number of other requirements. Thus, on the one hand, a good driving rain-tightness of the sealing strip is desired, in order to avoid penetration of moisture into the joint, even when driving rain, when the sealing strip in the joint is still freely accessible from the outside. For this purpose, it is known, for example, to provide the outer side sealing tape with a coating, a special impregnation or even foil. However, this is relatively expensive, since this requires further steps and a further use of materials. Furthermore, under certain circumstances, there is the risk that a coating or film applied only on the surface will be damaged, and then at least locally its function will be impaired. On the other hand, under certain circumstances, such a narrow-side coating can also have a very strong influence on the water vapor diffusion properties in this region of the sealing tape.

The invention is therefore an object of the invention to provide a sealing tape, which has an improved driving rain in presenting a gradient of the water vapor diffusion resistance over the sealing strip cross-section and is inexpensive to produce.

This object is achieved by a sealing strip according to claim 1. According to the invention, in this case, the sealing tape in the height range and / or in the depth range of the sealing strip cross-section structured to form a survey or sink (the thus structured broadside is here referred to as "top", regardless of their installation position). As a result of this structuring, the properties of the sealing strip can thus be modified in particular also with regard to the watertightness of traffic, since the compression of the sealing strip arranged in the joint can be locally modulated in the area of the narrow sides by the arrangement of the elevation or depression. By elevation or optionally the sink to the next adjacent narrow side out upstream portion of the sealing strip, which is subject to in mounting the sealing tape in the joint of a higher compression than the respective adjacent band section, a zone of increased water tightness is obtained. On the other hand, the arrangement of the height range and depth range in the region of the opposite narrow sides a compression gradient and thus density gradient is obtained within the sealing strip, which extends substantially over the full width of the sealing strip (height and depth range are therefore preferably on opposite sides of the median plane of the sealing tape). As a result, a gradient of the water vapor diffusion resistance is generated, so that by means of the sealing tape, the joint is inside space denser than room outside. Due to the additional modulation of the cross-sectional profile of the sealing strip through the elevation and the sink, the level difference between height and depth range or the corresponding difference of the water vapor diffusion resistance in the height and depth range is not significantly affected, so that the sealing tape both functionalities of gradient of the water vapor diffusion resistance on the outside sloping and improved watertightness combined at least in the area of the outside narrow side. Since both functions are achieved by the profiling of the sealing strip, the sealing strip is also simple and inexpensive can be produced, since additional measures such as the arrangement of films, narrow side coatings or the like need not be made, even if they may optionally be provided in addition. The statements relating to the sealing strip profiling in the context of the invention relate in each case to the free, fully relaxed or restored sealing strip, unless otherwise stated in the context in detail. It is understood that the survey or sink are each provided in addition to the respective height or depth range as additional structuring of the sealing strip.

The term "sink" in the context of the invention should generally be understood to mean that the opposite flanks of the sink are laterally spaced from one another. The "sink" is thus not to be understood in the sense of an incision, but as the "negative" of a survey.

The invention is further embodied by the subclaims.

Particularly preferably, the sealing tape in the height range and in the depth range on a survey and sink based on the sealing strip cross section. The survey and sink can - as generally within the scope of the invention - extend over the entire length of the sealing strip. The sealing strip can have a constant cross-section over its entire length.

In each case, precisely one elevation and exactly one depression are respectively provided at the height region and at the depth region of the sealing band. Preferably, these are spaced approximately over the width of the sealing strip from each other and thus arranged adjacent to the two narrow sides. Preferably, therefore, the height range with (preferably exactly) an elevation or depression provided and the depth range with the other profiling, namely (preferably exactly) with a sink or elevation.

According to an alternative, the height range of the sealing band with a (preferably exactly one) elevation and the depth range of the sealing band is particularly preferably formed with a (preferably exactly one) depression, particularly preferably the height range with exactly one elevation and the depth range with exactly one depression. In this way, on the one hand by the arrangement of elevation and depression at the height or depth range of the maximum profile height difference of the sealing strip over the cross section can be additionally increased (ie beyond the level difference between and height and depth range to the height of elevation and depression), so that thereby a larger gradient of the water vapor diffusion resistance is achieved in a width range of the sealing tape. On the other hand, a sufficient sealing band height can still be achieved by the adjoining the sink area of the sealing strip in the region of the narrow side, so that in the joint arranged in the joint completely relaxed sealing strip the broad sides of the same still with sufficient contact pressure (due to the provision of the sealing strip) abut the respective joint flanks (eg frame side or window reveal). Preferably, the elevation does not extend more than 66% or not more than 40-50%, preferably not more than 25-33%, of the level difference Nv between the base B _{T of} the depth range to the base B _H of the height Height range beyond the height range of the sealing strip. As a result, the gradient of the water vapor diffusion resistance can be significantly increased, on the other hand, it has been found that damage to the survey can be avoided when installing the frame profile in a masonry opening in already partially reset sealing tape. Independently hereof, or in combination therewith, preferably the depression does not extend in depth more than 66% or not more than 40-50%, preferably not more than 25-33%, of the level difference Nv between base of the depth range and base of the height range down (ie to the profiled broadside opposite broad side), whereby excessive material weakening of the sealing strip is avoided.

Preferably, each of the elevation and / or the sink extend over ≥ 10-15% or ≥ 20-30% of the height of the level difference Nv.

According to an alternative embodiment, the height range of the sealing strip is formed with a (preferably exactly one) depression and the depth region of the sealing strip with a (preferably exactly) elevation, particularly preferably the height region with exactly one depression and the depth region with exactly one elevation. As a result, a sufficiently high gradient of the water vapor diffusion resistance over the width of the sealing strip is achieved (due to the corresponding gradient of the compression or the density of the foam material), on the other hand is obtained by the survey at the depth range of the sealing tape improved watertightness. Preferably, the elevation in this case does not extend beyond the height range of the sealing tape, for example only up to 33% or up to 50-66% or up to 75% of the profile height (ie the level difference Nv starting from the base of the depth range up to Base of altitude range). As a result, on the one hand the survey, which is narrower than the height range, protected during the assembly of the sealing strip from damage. Thus, under certain circumstances, the sealing tape may already be partially reset when this is used in the building joint or on a component (eg Window frame) attached together with this is inserted into the respective masonry opening. On the other hand, this avoids that the sealing tape drops from the survey to the next adjacent side surface in the profile height, so that at the height of the survey would result in a lower water vapor resistance, as on the adjacent narrow side. Depending on the humidity in the interior of the room and the outside of the room (for example, measured as absolute humidity), this can possibly lead to undesirable effects such as a slower diffusion of water vapor through the sealing tape. Irrespective thereof, or in combination therewith, the depression preferably does not extend beyond the depth range in depth, for example only up to 33% or up to 50-66% or up to 75% of the profile height (ie the level difference Nv starting from the base of the profile) Altitude range up to the base of the altitude range). It has been found that this can be avoided that the water vapor diffusion is undesirably slowed down under special conditions of humidity on the inside of the room and the outside of the room from the sink to the room outside. Furthermore, this avoids that in the region of the depression arranged at the depth of the sealing tape has a too low overall strength, so that on the other hand in this area the sealing strip with complete relaxation in the joint with a comparatively low contact force against the respective joint wall, which the exact fit and may affect the proper retention of the sealing tape in the joint.

Optionally, however, independently of one another or preferably in combination with one another, the height area can be provided with two depressions and the depth area can be provided with two elevations. But possibly also independently of each other or preferably in combination with each other, the height range be provided with two surveys and the depth range with two depressions.

If the depth region is provided with an elevation, then this is preferably spaced from the narrow side or can connect directly to the narrow side. Thus either the foot or the ridge of the elevation, i. H. the highest area of the same, be arranged directly at the height of the narrow side. Optionally, the collection of the narrow side is also spaced, in particular, the ridge of the survey may be spaced from the narrow side. If the depth region is provided with a depression, then the depression is preferably spaced from the narrow side, in order to produce a region of higher compression between the depression and the narrow side or, when the sealing strip is mounted, higher foam density and thus higher watertightness. This may refer to the valley of the sink or the sink altogether.

It has been found to be particularly preferred if the height of the elevation and / or depth of the depression measures 10 to 65% of the height difference between height range and depth range (level height Nv), so that the sealing band profiling can be sufficiently modulated to increase the watertightness of the rainfall at sufficiently high levels Gradient of water vapor diffusion resistance. The respective height of elevation and / or depth of the depression is preferably 10 to 60%, particularly preferably 15 to 50%, of the height difference between the height and depth ranges. As a result, sufficient modulation of the sealing band compression for improving the watertightness can be obtained by obtaining a sufficient gradient of the water vapor diffusion resistance across the sealing band width.

The height of elevation and / or depth of the sink refers in each case on their height / depth starting from the base line of the height or depth profile, ie the extrapolated in the area of elevation or sink profile. This extrapolation is preferably carried out on the basis of a polynomial, in the simplest case as a linear extrapolation. Extends the elevation or depression partially on the side surface, so an extrapolation based on a polynomial can be performed to the side surface, in the simplest case, a horizontal linear extrapolation starting from the dip or elevation immediately upstream inflection point of the curve of the height profile.

The "bases" of the height and depth ranges are respectively the highest and lowest portion of the respective range, without consideration of the respective (mounted) elevation (s) or sink (s) thereof. In the simplest case, the base results from a horizontal linear extrapolation of the height profile, starting from the point of inflection of the curve of the height profile directly upstream of the depression or elevation, up to the respective (next adjacent) side surface.

Preferably, the width of the elevation and / or depression at the respective height or depth region of the sealing tape is 33 to 400% or 50 to 200% or particularly preferably 75 to 150% of the height or depth of the respective elevation or depression, preferably in each case such that the respective elevation or depression does not extend laterally beyond the median plane into the other subregion of the sealing strip broad side, which may be possible under certain circumstances. Preferably, or particularly preferably, the sealing band area with modulated profiling extends only over a relatively small area of the sealing band width, it has been found that the adjustment of the water vapor diffusion resistance via the compression of the assembled sealing band in the remaining areas is influenced only comparatively little. Preferably, the at least (or exactly) one or all elevations of the sealing strip has a width which corresponds to 5-30% or preferably 10-25% or 15-20% of the sealing bandwidth in order to be able to optimally fulfill the desired functionalities in combination.

Preferably, the at least (or exactly) one or all depressions of the sealing tape have a width which corresponds to 5-30% or preferably 10-25% or 15-20% of the sealing tape width in order to be able to optimally fulfill the desired functionalities in combination.

According to an alternative embodiment of the sealing strip, the elevation and the depression may also be arranged adjacent to the sealing tape center plane.

If the profile has at least two local minima (valley of the valleys), then preferably the lowest local minimum of the depth range is located lower (ie has a lower height in cross section starting from the base line of the profile or the opposite broad side) than the lowest local minimum of the altitude range. The connecting line at the two minima rises to the height range. The rise can be, over the entire width of the sealing tape seen, so extrapolated to both narrow sides, ≥ 5-10% or ≥ 15-20% or preferably ≥ 30-40% of the height of the sealing band or the level difference Nv between height and depth range , The increase may be ≤ 80-90% or ≤ 60-70% of the height of the sealing band or the level difference Nv between the height and depth ranges. Regardless of or in combination with this, if the profile has at least two minima, the lowest local minimum of the altitude range may be higher (thus having a greater altitude in the altitude range) Cross-section starting from the base line of the profile or the opposite broad side) as the highest local maximum of the depth range, so that the connecting line at the two extremes increases towards the height range. The rise can be, over the entire width of the sealing tape seen, so extrapolated to both narrow sides, ≥ 5-10% or ≥ 15-20% or preferably ≥ 30-40% of the height of the sealing band or the level difference Nv between height and depth range , The increase may be ≤ 80-90% or ≤ 60-70% of the height of the sealing band or the level difference Nv between the height and depth ranges. This preferably also applies if the height and / or depth range each have two or more local minima. If the local minimums of height and / or depth range have the same height (absolute height from the broadside opposite the profile), then this can apply in each case to local minima with the greatest lateral distance.

Particularly preferred is the level difference Nv between height and depth range 20-80% or 25-75%, preferably 30-70% or 40-60% of the total profile height of the sealing strip, ie from the highest elevation of the profiled broadside to the opposite broad side. The latter "opposite" broadside is preferably flat. It is here the broad sides of the foam body, so regardless of any additional fastening profiles.

Particularly preferably, the sealing strip profile is arranged on both sides of the center plane inverse to each other, ie when considering a sealing strip cross-section of the height and depth range of the sealing strip by a point mirror at the intersection of the sealing strip profile with the median plane into each other. This relates advantageously to the arrangement and shape of the elevation and sink to each other, particularly preferred on the entire profile design of the sealing strip (with respect to the cross-sectional line of the sealing strip, which defines the profiled top of the same).

The average height of the height range is generally larger (ie higher) than the average height of the depth range, this can generally be considered within the scope of the invention. If - at least then or generally in the context of the invention - reference is made to the "average height", the height and depth range extends over the entire extent of the cross-sectional profile of the respective side surface to the median plane of the sealing strip. The total extension of height and depth range over the broad side of the sealing strip thus corresponds to the total width of the band. In particular, in the context of the invention, the average height of the height range may be greater than the average height of the depth range, wherein at the same time the cross-sectional profile is such that the sealing tape in the fully retracted condition, the broad side height of the sealing strip in the region of the narrow sides, which is adjacent to the height range next is greater than in the area of the opposite narrow side, which forms the depth range. The mean height of the altitude range may be ≥10-20%, or preferably ≥30-50%, as that of the depth range. If necessary, the mean height of the altitude range is ≤ 400-600% or ≤ 200-300% or even ≤ 125-150% than that of the depth range. In the context of the invention, the "mean height" of height or depth range is the height of the respective area determined by the sum of the heights at each point of the cross-sectional profile in this area divided by the number of measuring points, possibly approximated by a sufficiently fine one Grid with equally spaced grid points (as opposed to the arithmetic mean of the highest and lowest points of the profile in each area). The "height" of height or depth range measured at the respective position or width position of the sealing strip cross section is measured with reference to the determination of the "average height" on the total height of the band (or more precisely the foam body thereof) at the respective location, So on the distance broadside broadside or top-bottom.

Preferably, independently of or at the same time, the minimum height of the height range (height of the absolute minimum thereof) is preferably greater than or equal to the minimum height of the depth range.

Preferably, independently of or at the same time, the minimum height of the height range (height of the absolute minimum thereof) is preferably greater than or equal to the minimum height of the depth range.

Preferably, independently of or at the same time, the minimum height of the height range (height of the absolute minimum thereof) is preferably greater than or equal to the mean height of the depth range.

Preferably, irrespective of or at the same time, the minimum height of the height range (height of the absolute minimum thereof) is preferably equal to or greater than the maximum height of the depth range (height of the absolute maximum thereof).

Preferably, regardless of or at the same time herewith, the mean height of the height range is greater than or equal to the maximum height of the depth range (height of the absolute maximum thereof).

Preferably, the number of local maxima of the height range is equal to the number of local minima of the depth range.

Preferably, the number of local minima of the height range is equal to the number of local maxima of the depth range.

Preferably, the cross-sectional profile of the sealing strip is formed continuously, ie without projections or edges (apart from the boundary edges on the side surfaces), so that a steady course of the Wasserdampfdiffusionswiderstandswertes in the joint arranged in the joint sealing strip (in each case with respect to the completely relaxed sealing strip) results , By avoiding points of discontinuity it is avoided that in regions and continuous change of the diffusion resistance value, the removal of water vapor is hindered or condensation takes place under special environmental conditions.

Particularly preferably, the surface profile of the sealing tape on the structured upper side, which is provided with at least one elevation and / or sink, undercuts. Preferably, the profile is formed such that vertical profile areas do not occur, e.g. those which run parallel to the side surfaces (if the side surfaces are perpendicular to the non-profiled broad side of the sealing tape, if appropriate, these vertical regions may be provided.) Preferably, the cross-sectional profile of the upper side is continuously advancing, that is to say by a clear curve can be represented, so that only one y-value (height) can be assigned to an x-value of the profile (ie a value of the width).

Preferably, in the fully retracted condition of the belt, the ratio of the width of the sealing belt broadside is equal to the width of the sealing tape narrow side (extension perpendicular to the longitudinal direction of the belt) ≥ 0.3-0.5 or ≥ 1-1.5, more preferably ≥ 2-2.5 or ≥ 3-4, usually ≤ 10-15 or ≤ 20 -25. The broad sides are generally the sides to be applied to the joint flanks. Preferably, the opposite narrow sides are flat and / or plane-parallel to each other.

The ratio of width to height of the sealant may preferably be in the range of 1: 5 to 5: 1 or 1: 4 to 4: 1, or more preferably in the range of 1: 3 to 3: 1, without being limited thereto.

The sealing tape may generally have an air permeability of ≦ 450-600 l / m ² s or ≦ 300-400 l / m ² s, optionally also up to 800-1000 l / m ² s. The sealing strip may in particular have an air permeability of ≦ 150 to 200 l / m ² s, in particular also ≦ 125 to 100 l / m ² s or also ≦ 60 to 80 l / m ² s, even ≦ 40 to 50 l / m ² s. Even with such low air permeabilities is achieved by the low modulation of the sealing strip profile by the collection or sink an improvement in the driving rain with sufficient gradient of the water vapor diffusion resistance. Here, and unless otherwise stated in the context of the invention, the air permeability given in each case refers to the standard conditions of a 10 mm thick foam piece (fully relaxed) at a measured negative pressure of 0.5 mbar, test area 100cm2; Frank device 21443; DIN EN ISO 9237. Preferably, the foam of the sealing band body is an at least partially or totally open-pore foam, which has at least a certain air permeability, preferably ≥ 5 l / m ² s. Preferably, the foam is open-pored in such a way that the sealing band body is continuously impregnated or impregnated over its entire cross section and its entire length, in particular impregnated for delayed recovery.

Particularly preferably, the sealing tape is integrally formed with a comprehensive the height and depth range and the collection and sink foam body. The sealing band areas, which cause the gradient of the water vapor diffusion resistance and the driving rain, are thus formed integrally on the foam body. Optionally, in this case, however, the described foam body can be arranged on a base forming foam strips, which may have a uniform height over its entire width, for example, attached by gluing.

Preferably, the profile of the opposite side of the sealing strip is provided with fastening means for fastening the sealing strip to a component such as a window frame or other frame profile, which may generally be considered within the scope of the invention. Despite the profiling of a sealing tape broad side this allows easy attachment to the respective component.

Preferably, if necessary, except for an adhesive layer, in particular self-adhesive layer, the top of the profiled Dichtbandbreitseite directly to the contact surface of the respective opposing component such as a frame profile or wall portion such. B. window reveal can be applied. This ensures that the sealing strip can invest substantially over the entire surface of an optionally planar contact surface of the opposing component. The profiling of the sealing strip in the fully reset state (with sealing strip arranged exposed) then corresponds at least substantially to the compression curve of the sealing strip over its width when mounted in the joint and fully relaxed state.

The width of the sealing strip can be 4-20 cm, preferably 6-18 cm.

Particularly preferably, the sealing strip has a width, so that it extends over the entire width of an associated frame profile, such as a window or door frame. The width of the sealing strip can be up to 5-10% or up to 15-20% or up to 30-40% greater than the width of the associated frame profile, wherein the sealing strip can be attached to the frame profile.

Fig. 1-4:

erfindungsgemäße Dichtbänder mit unterschiedlichen Querschnittsprofilierungen.

The invention will now be described and explained with reference to an embodiment. Show it:

Fig. 1-4:

inventive sealing strips with different cross-sectional profiles.

The FIGS. 1 to 4 show sealing strips according to the invention for sealing joints, in particular between building parts, in particular between frame components such as window and door frames on the one hand and the opposite window or door revealing. Each sealing strip 1 has an elongated foam body 2 and opposite broad sides 3, 4 which can be applied to the two joint flanks. The one of the two broad sides is in this case preferably at least substantially flat, optionally it may also have a profiling. According to all embodiments, the broad side 3 is flat. The broad side 3 is in this case provided with fastening means such as a self-adhesive layer (not shown) for fastening the sealing strip 1 to a component or building area, eg a fixed frame. Between the broad sides are opposite each other narrow sides 5, 6 are arranged, which in the assembled state of the sealing strip 1, the space inside and space outside boundary represent the sealing tape.

The sealing strip 1 has on the broad side 4 a cross-sectional profiling 7, which extends uniformly over the entire sealing strip length. In the region of a narrow side 5, which is interior space with mounted sealing strip 1, a height range 8 is provided, in the region of the opposite narrow side 6, a depth range 9, between which thus results in a height or level difference Nv. The height range 8 directly adjoins the narrow side 5. The depth region 9 directly adjoins the narrow side 6. The height and depth range 8, 9 is thus arranged on both sides of the center plane 10 of the sealing strip, the center plane 10 is arranged centrally between the two narrow sides 5, 6, in particular parallel to the narrow sides 5, 6 (or for the special case that the Narrow sides 5, 6 enclose an angle to one another, which represents the bisecting line, which can generally apply). When the sealing strip is arranged in a joint, the result is a greater material density of the foam material in the height region 8 of the sealing strip when the sealing strip is completely recessed or relaxed, in which the restoring forces of the sealing strip are in force equilibrium over its thickness between the two broad sides. and therefore also a larger water vapor diffusion resistance. Overall, there is thus a gradient of the water vapor diffusion resistance over the sealing bandwidth, ie from the narrow side 5 to the narrow side 6.

The sealing tape is here further impregnated for delayed recovery, preferably continuously impregnated homogeneous. Optionally, one or both of the narrow sides 5, 6 may be provided with additional coatings or films in order to adapt the sealing tape properties to the respective requirements, for example with respect to the air permeability or similar.

According to the embodiment of FIG. 1 is the height range 8 with a depression 11 and the depth range 9 provided with a survey 12. According to the embodiment of FIG. 2 the depth region 9 is provided with a depression 11 and the height region 8 with an elevation 12.

After the Figures 1 and 2 are the wells 11 and elevations 12 each adjacent to the narrow sides 5, 6, ie the distance of the sink or survey (each based on the maximum height or depth) of the narrow sides 5, 6 is ≤ the 2 to 3 times, in particular ≤ 1.2 to 1.5 times, or according to Fig. 1 at least approximately equal to the respective height h of the elevation or dip, each with respect to the adjacent altitude or depth range. If appropriate, the distance a of the respective elevation or depression can also be smaller than its height h, for example ≥ 0.25 to 0.33 times or ≥ 0.5 to 0.75 times the same (ie up to the height h or even beyond) ), so that the areas of maximum height or depth of the survey or sink from the narrow sides 5, 6 are spaced. The height h of the elevation and the depression is here measured between the maximum height (ridge or valley bottom) and the extrapolated profile curve of the broadside (dashed line in the figures, the compensation line is generally within the scope of the invention by a polynomial adaptation to the Profile course or - in the simplest case - by a straight-line extrapolation of the profile area in the area of the elevation or depression, in which case, if depression or elevation are arranged adjacent to the narrow sides, is extrapolated straight to the narrow sides horizontally horizontally).

The heights h of the survey and sink may be different, according to the embodiments of the FIGS. 1 to 4 are these equal. If a plurality of elevations and depressions are provided, the heights of the elevations and of the depressions may also be different independently of one another, but in particular may also differ from one another. The remarks of this section may also apply generally within the scope of the invention.

In Figure. 2 is the base line B of the profile in the area of collection and sink with interruption, which applies accordingly for the other embodiments. The base line B runs here parallel to the broadside 3. The base B _T for the depth range and the base B _H for the height range are also shown, so the respective lowest or highest portion of the respective area regardless of elevation and sink, which is accordingly for the other figures apply.

According to FIG. 3 is the height range 8 with a depression 11 and the depth range 9 provided with a survey 12. Valley 11 and elevation 12 are in this case arranged adjacent to the center plane 10 of the sealing strip 1, ie ≤ the 2 to 3 times or less 1.2 to 1.5 times, in particular less than the simple height h spaced from the central plane, which is independent of the embodiment may generally be considered within the scope of the invention. As a result, a comparatively strong - but preferably still steady - change in the height profile and thus also the degree of compression of the sealing strip in the assembled state is effected in the central region of the sealing strip 1. If necessary, this can be advantageous in the case of narrow sealing bands, so that here the height range can be made comparatively flat so that a locally exact fastening of the sealing band in the joint is made possible.

FIG. 4 shows a sealing tape, in which the height range 8 with a sink 11 and the depth range 9 with a survey 12 are provided. The sink 11 in this case goes over into the narrow side 5. The elevation 12 merges into the narrow side 6. The narrow sides 5, 6 are in this case arranged at the maximum depth or maximum height of sink 11 or elevation 12, if necessary, the narrow sides 5, 6 but also in the rising or falling edges of sink 11 and elevation 12 may be arranged. As a result, directly on the narrow side 6, the sealing strip have a comparatively large material thickness and thus increased watertightness, yet over a relatively large area of the width of the sealing strip, namely between the sink edge 11a and the elevation edge 12a, the band over a relatively wide range of width the same extends.

According to the embodiments of the FIGS. 1 to 4 is - independently of each other - the height h of the survey 12 about a quarter, possibly one-third to one-fifth, the height of the level difference Nv between height and depth range.

According to the embodiments of the FIGS. 1 to 4 corresponds - independently of each other - the width b of the sink 11 and the survey 12 each at least approximately the height h of the respective sink or survey. According to a - often preferred - modification, the width of the elevation and depression is greater than their respective height, for example by up to 25-33% or up to 50-75%, which may generally be considered within the scope of the invention.

To FIG. 1 has the profiled broad side of the sealing strip in cross section three local minima y and three local maxima x. To FIG. 2 has the profiled broad side 4 of the sealing strip in cross-section two local maxima x and two local minima y. To FIG. 3 has the profiled broad side 4 of the sealing strip in cross section three local maxima x and three local minima y. To FIG. 4 has the profiled broad side 4 of the sealing tape in cross-section two local maxima x and two local minima x. After all of the embodiments, the profiled broad side of the sealing strip thus has in cross section at least two local maxima x and a local minimum y, more preferably two local maxima max and two local minima min. In general, therefore, the number of local maxima is greater than the number of local minima.

According to the embodiments of the Figures 1-4 the elevation area has exactly one dip and the depth area has exactly one elevation. Optionally, further elevations and / or sinks can follow each other at the height and / or depth range, for example exactly one in each case. The elevations and depressions then have a ridge of increasingly high level (ie absolute height in cross-section) with respect to the height range and a valley of increasingly low level with respect to the sink. Preferably, however, these additional elevations and depressions are not present in order to achieve as uniform as possible a gradient of the water vapor diffusion resistance over the bandwidth.

After all of the embodiments in which the profile has at least two local minima, the lowest local minimum of the depth range is located lower (ie has a lower height in cross section) than the lowest local minimum of the height range, so that the connecting line V at the two minima rises to the height range (see Fig. 1 ). This can generally be considered within the scope of the invention.

After all of the embodiments in which the profile has at least two minima, the deepest is local Minimum of the height range arranged higher (ie has a greater height in cross section) than the highest local maximum of the depth range, so that the connecting line V at the two extremes to the height range increases (see Fig. 1 ). This can generally be considered within the scope of the invention. In relation to FIG. 1 Thus, for example, the valley of the depression 11 of the height range is arranged higher than the ridge of the elevation 12 in the depth range. The same applies to the Figures 2-4 , where in FIG. 4 Valley of the valley 11 and back of the elevation 12 coincide with the narrow sides.

According to the embodiments of the Figures 1-4 each profile on the broad side 4 is formed such that the two profile areas are arranged on both sides of the median plane inverse to each other with the inversion center i, or in other words rotationally symmetrical with respect to an axis in the median plane through the center i extending axis (180 °) are arranged ,

After all embodiments of the FIGS. 1 to 4 the profile of the broad side 4 is steadily formed.

After all embodiments of the FIGS. 1 to 4 the average height of the altitude range is greater than or equal to (ie higher or at least equal to) the maximum height of the depth range. Height and depth range here in the context of the description of the "average height" in each case over the entire extent of the cross-sectional profile of the respective side surface to the median plane of the sealing strip, as indicated by the arrow in the region of the underside of the sealing strip, which is appropriate for all Figures applies. After all embodiments of the FIGS. 1 to 4 is at the same time, optionally also alternatively, the minimum height of the height range greater than / equal to the middle Depth of the depth range. This can in each case apply independently within the scope of the invention.

All of the sealing strips have at the broad side, which is opposite to the described height profile and preferably flat, a mounting surface for fixing to a frame profile as a window frame. The attachment surface is here provided with a fastening means 15, according to the embodiment in the form of a self-adhesive layer.

According to all embodiments has - independently of each other - the sealing tape an air permeability of 150 to 200 l / m ² s, after a modification, an air permeability of 100 to 150 l / m ² s, according to another modification, an air permeability in the range of 50 to 100 l / m ² s, determined as described above. The air permeability may, however, generally be ≦ 600 l / m ² s, in particular ≦ 150 l / m ² s.

According to all embodiments, the illustrated profiled region of the sealing strip is formed in one piece. Optionally, however, the sealing tape can be arranged on a foam pad or other pad, which is permanently connected to the profiled sealing strip, for example glued, is.

Claims (18)

Sealing tape for sealing joints, with an elongated foam body and opposing, can be applied to the joint flanks wide sides and arranged between these, opposite narrow sides, wherein the sealing strip on at least one of the broad sides has a cross-sectional profiling, such that the sealing strip in the fully retracted state, the broad side height the sealing strip in the region of one of the narrow sides to form a height range is greater than in the region of the opposite narrow side, which forms a depth range, wherein height range and depth range are arranged on both sides of the median plane of the sealing strip, so that arranged in the joint, set back sealing tape in the height range itself a greater density of the foam material results, as in the depth range, wherein the sealing tape is impregnated for delayed recovery, characterized in that the sealing tape in the height range and / or r in the depth range to form a survey or sink is structured in cross section. Sealing strip according to claim 1, characterized in that the elevation and depression per se have a lower height and / or width than the height range and the depth range in relation to the average height of the profiling. Sealing strip according to claim 2, characterized in that the height of the elevation and / or the sink 10-45% of the height extent of the height range or the depth range with respect to the average height of the profiling. Sealing strip according to one of claims 1 to 3, characterized in that in at least one survey whose width is 50-400% of the vertical extent of the same and / or that in at least one sink whose width is 50-400% of the depth extent thereof. Sealing strip according to one of claims 1 to 4, characterized in that the elevation does not extend beyond the height range in height and / or that the depression does not extend beyond the depth range in depth. Sealing strip according to one of claims 1 to 5, characterized in that the height range of the sealing strip with a survey and that the depth range of the sealing strip is formed with a depression. Sealing strip according to one of claims 1 to 5, characterized in that the height range of the sealing strip is formed with a depression and the depth region of the sealing strip with a survey. Sealing strip according to one of claims 1 to 7, characterized in that the elevation and the depression are each arranged adjacent to one of the opposite narrow sides of the sealing strip. Sealing strip according to one of claims 1 to 8, characterized in that the profile regions of the sealing strip are arranged on both sides of the center plane inverse to each other and / or that the cross-sectional profile of the sealing strip is formed continuously. Sealing strip according to one of claims 1 to 9, characterized in that the sealing strip has an air permeability of ≤ 600 l / m ² s. Sealing strip according to one of claims 1 to 10, characterized in that the profiled broad side of the sealing strip in the cross-sectional profile has at least two local maxima and at least one local minimum. Sealing strip according to one of claims 1 to 11, characterized in that the sealing strip in the cross-sectional profile has at least or exactly two local maxima and at least or exactly two local minima. Sealing strip according to one of claims 1 to 12, characterized in that the cross-sectional profile of the sealing strip has at least two local minima, and that the lowest local minimum of the depth range is located lower than the lowest local minimum of the height range. Sealing strip according to one of claims 1 to 13, characterized in that the cross-sectional profile of the sealing band has at least two local minima, in each case at least one in the height and at least one in the depth range, and that the lowest local minimum of the height range is arranged higher than the highest local maximum of the depth range. Sealing tape according to one of claims 1 to 14, characterized in that the average height of the height range is greater than / equal to the maximum height of the depth range, and / or that the minimum height of the height range is greater than / equal to the mean depth of the depth range. Sealing strip according to one of claims 1 to 15, characterized in that the sealing strip is formed integrally with a cross-section continuous foam body. Building with joint and arranged in this sealing strip according to one of claims 1 to 16, wherein the sealing strip is adjacent to both joint flanks, compressed against a fully restored state. Building with sealing tape according to claim 17, wherein the height range of the same space is arranged inside the room.

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