DE19810434C1 - Ridge capping strip - Google Patents

Abstract

The strip (10) is a resilient multilayer composite. A flexible, resilient substrate sheet (100) is attached by thermal- or ultrasonic welding at points or lines, to nonwoven sheets (101, 102) forming cavities (104). Plastic edge strips are deformed to a wavy profile and bonded to the surface over their entire area. Independent claims are included for the method of making the strip and the plant used for the purpose. Preferred features: The substrate (10) is tri-layered, with wavy lining as described. Peaks and troughs of nonwoven material extend perpendicularly with respect to the strip, and are locally-connected at the troughs.

Description

The invention relates to a strip-shaped material web for a ridge or Ridge cover with a rain and air snow-tight carrier web, the one has the width corresponding to the width of the material web and at at least in the area of the outer longitudinal edges of the carrier web a plastic deformable edge strip is applied such that the with the Edge strips provided carrier sheet is adaptable to roofing slabs.

Strip-shaped material webs of the generic type are in various designs for covering ridges or burrs from Building roofs known and serve to seal the roof interior against rain and flying snow.

A generic strip-shaped material web is known from EP 0 341 343 A2 known. It has a median strip that allows air to pass through from a water-repellent and flight snow-proof fleece and to the Customizable side stripes from top of roofing slabs stretchable polyisobutylene film strips with embedded expanded metal mesh on. This expanded metal mesh worked into polyisobutylene foil strips however, causes great production effort and high manufacturing costs, so that the economy of the known strip-shaped material web seems to be in need of improvement.  

A ridge sealing strip is known from EP 0 610 324 B1 has wavy plastically deformed edge strips made of metal that so the side strips are attached that in the width direction of the Ridge sealing strip lying air passage channels are formed.

The object of the invention is a strip-shaped material web of the type mentioned at the beginning for a ridge or ridge cover to propose that with the known ridge or ridge covers much less effort and costs can be produced and above In addition, a good seal of the roof interior against rain and Flying snow allows.

This task is performed with a strip-like material web according to the characterizing features of claim 1 solved.

Advantageous embodiments of the strip-shaped according to the invention Material web are specified in subclaims 2 to 16.

A method for producing the strip-shaped according to the invention Material web is the subject of claims 17 to 23, a device for Production of the same is specified in claims 24 to 28.

The strip-shaped material web according to the invention has a rain and Flying snow-tight carrier web from an elastic at least in one direction stretchable composite material with a multilayer structure, in which one Layer is formed from an elastic and flexible carrier film and at least on one side of the carrier film as a further layer with the Backing film with the formation of voids connected nonwoven web is provided, the nonwoven web by means of thermal bonding or Ultrasonic welding in point or line areas with the Carrier film is connected and the edge strip from a plastic deformable plastic film is formed and in the longitudinal extension of the  Material web is deformed in a wave shape and over the entire surface with the carrier web connected is.

The invention teaches that one with a wavy edge strip equipped elastic carrier web, in which the carrier web covers the entire surface with the Edge strip is connected and also in this composite area is wavy deformed and runs, easily by hand the course of the Roofing tiles can be adjusted. Due to the wavy The course of the edge strip with the carrier web has this in the longitudinal direction seen in short intervals one after the other a large number of bends or bends, each already on a plastic deformation the plastic film forming the edge strips. By more Deformation, for example when the edge strip is pressed against the course of Roofing panels are caused by further deformations that a plan plastic film u. U. are still elastic in the however, according to the invention, wavy and plastically deformed edge strips cause further plastic deformations. Due to the full area Connection of the wavy edge strip with the carrier web in the area the longitudinal edges of the same take it at least in the area of Longitudinal edges also on this undulating course and can be over it Adjust by hand to the course of the roofing slabs.

The edge strips are preferably glued to the carrier web, e.g. B. means a suitable thermally activatable adhesive, such as one Hot melt adhesive or by means of suitable pressure sensitive adhesives.

The carrier webs used in the context of a multilayer structure from a carrier film and on the carrier film attached nonwoven webs are known in principle, but so far mainly for the production of diapers and similar hygiene articles used. Depending on the embodiment, is only on one side Carrier film provided a nonwoven web or the carrier film is on both of them  Sides each connected with a nonwoven web and thus embedded between them, so that the carrier web has a three-layer structure, in which the Carrier film, the inner layer and the two nonwoven webs each an outer Form a layer.

Examples for the production of such within the scope of the invention as Carrier web used composite material are in DE 196 04 956 A1, DE 42 43 012 C2 and DE 42 38 541 A1 specified. The attachment of the Nonwoven webs on the carrier film with the formation of cavities is in the essentially achieved in that the nonwoven webs in contrast to Carrier film have a reduced to no elasticity and the Nonwoven webs and / or the carrier film stretched in at least one direction become. The nonwoven webs are point-by-point or line-shaped Areas with the carrier film by means of thermal bonding and / or Ultrasonic welding is connected and the composite thus formed is relaxed. Here, the nonwoven webs remain due to their only minor Elasticity in its pre-relaxing length, while the elastic carrier film its original dimensions before stretching takes up again, whereby between the connection points of the Nonwoven webs to the carrier film wave and raise and here the cavities are formed. These well-known As already mentioned, composite materials have so far mainly been used for Manufacture of diapers and similar hygiene material used, wherein these composite materials are particularly high and easy to control Have elasticity when reaching a predetermined stretch, at which the nonwoven webs from their corrugated position into an elongated extent brought, is automatically limited by these, so that the Elongation at break of such a composite material is normally not is achieved.

In the context of the invention it has now been found that this from the Known diaper manufacturing composite materials with great advantage as rain  and fly snow-tight carrier web for a strip-shaped material web for a ridge or ridge cover of the type mentioned can be used are wavy at their longitudinal edges with those already explained longitudinally deformed edge strips from a plastically deformable Plastic film to be fully connected. The hereby won strip-shaped material web for a ridge or ridge cover has one high rain and flight snow tightness and high mechanical strength. Due to the high elasticity of the carrier web, the invention can strip-shaped material web particularly easy to handle and even in difficult accessible ridge or ridge areas of building roofs on simple Lay wise, as well as roll up before using what the Manageability and transport easier.

Of course, it is also possible within the scope of the invention that wavy plastic deformation of the edge strips also in one of the Arrange longitudinal direction deviating direction, z. B. across to the longitudinal extent of the edge strips.

Significant advantage of the strip-shaped designed according to the invention Material web for a ridge or ridge cover is that this from one Combination of a carrier web with film and fleece layers as well Edge strip consists of a plastically deformable plastic film, whereby the manufacturing costs compared to the known strip-shaped Material webs with expanded metal insert or made of metal Edge strips can be significantly reduced without the seal against Rain or flying snow or the plastic deformability of the stripe-shaped Material web for adaptation to the top of the roofing panels reduced compared to the known ridge and / or ridge cover sheets becomes. Disposal and recycling of the material web according to the invention is due to the absence of metallic reinforcements and / or edge strips also easier possible.  

A preferred embodiment of the invention provides that the nonwoven webs the carrier web has a wavy course and in some areas the carrier film are connected. Here the wave crests and valleys of the nonwoven webs preferably perpendicular to the carrier film. Through this the carrier web used according to the invention is given a meandering course a particularly high elasticity that when reaching a predetermined Stretching is stopped abruptly by the nonwoven webs. The connection of the Wavy nonwoven webs with the carrier film take place after a advantageous embodiment of the invention in the area of the troughs Nonwoven webs.

The carrier film of the carrier web is preferably made of an elastic rubber thermoplastic elastomer. For example, the carrier film from a polyethylene / polyethylene copolymer or from block copolymers of type A-B-A '. The thickness of the carrier film is advantageously 0.01 to 0.08 mm.

According to a further advantageous embodiment of the invention it can also be provided to perforate the carrier film of the carrier web, to allow water vapor to pass through. The perforations can be carried out in such a size that water vapor penetration water drops or flying snow are prevented from entering remains. This can be done, for example, during the connection of the carrier film the nonwoven webs are effected by means of needle rollers. Such strip-shaped material web enables ridge and / or ridge cover a moisture removal from the roof interior with simultaneous rain and Air-tightness.

The nonwoven webs of the carrier web used according to the invention are advantageous based on polyolefins, such as polypropylene or a polyester. Nonwovens produced using different processes can be used here  are used, such as nonwovens made from continuous filaments or such meltblown microfibers or combinations thereof.

Another advantageous embodiment of the invention strip-shaped material web provides that in the central region of the Carrier web a reinforcement strip is applied, for. B. is glued on. This reinforcement strip is put together with the middle area of the Carrier sheet placed on the ridge or ridge beam and by means of nails or the like fixed on this. This fixation is then carried out by the Reinforcement strips through, so that on the one hand the fixation improves and on the other hand, tearing of the carrier web in this area is prevented.

The plastically deformable edge strips and / or the are preferred Reinforcement strips made of a plastic film based on polyolefins, such as Polypropylene, a high density polyethylene (HD polyethylene) or one Low density polyethylene (LD polyethylene) or a soft PVC in one Thickness of 40 to 100 microns formed. This is an inventive receive strip-shaped material web, its manufacturing costs compared those with edge strips based on metal or expanded metal are reduced.

To fix the strip-shaped material web according to the invention through the reinforcement strips applied in the middle area facilitate, according to a further advantageous embodiment of the Invention can be provided that the reinforcement strip is perforated is, for example, a series of holes at a constant distance has, through the fixing nails in the ridge or ridge beams can be smashed.

To fix and adjust the longitudinal edges of the invention strip-shaped material web on the top of the roofing slabs can also improve in the area of the longitudinal edges of the  Carrier web on the side facing away from the edge strip self-adhesive adhesive strips based on bitumen or one Butyl rubber can be applied to the carrier web. These self-adhesive Show adhesive strips based on bitumen and / or a butyl rubber a high weather resistance on that for applications in construction is an advantage. A modification of the bituminous base is preferred by means of polyolefins, whereby the self-adhesive strips are attached over a wide temperature range elastically deformable and temperature resistant can be set so that they can be, for example, in one Temperature range from -20 ° C to + 100 ° C temperature resistant and are processable. Furthermore, the addition of polyolefins Plasticity and the thermomechanical behavior of the bitumen increased.

Of course it is also possible within the scope of the innovation, others self-adhesive and elastically deformable pressure sensitive adhesive in strip form in the Apply the sense of the invention to the carrier web. In particular, be natural and synthetic rubbers, polyacrylates, polyesters, Polychloroprene, polyisobutenes, polyvinyl ethers, polyolefins and polyurethanes considered suitable. These pressure sensitive adhesives can be used in Combination with additives such as resins, bitumen, plasticizers and / or Antioxidants for the formation of self-adhesive strips for the strip-shaped material web according to the invention can be used. Is too it is possible to use a self-adhesive tape instead of one self-adhesive layer in a viscous state on the carrier web Apply application nozzles in the form of an adhesive strand.

The handling of the strip-like material web according to the invention can be increased according to a development of the invention in that the adhesive strips by means of a removable cover strip from a Plastic film or siliconized paper are covered. Before creating the Longitudinal edges of the strip-like material web according to the invention to the The cover strip is removed from the top of the roof covering panels, see above  that the adhesive strips become accessible and on the roofing panels can be glued on.

The edge strips and the reinforcement strips of the invention strip-shaped material web are preferably on the same side of the Carrier web applied, but it is also possible within the scope of the invention the edge strips on one side of the carrier web and the reinforcement strips to be applied on the other side of the carrier web or on both sides.

After laying the strip-shaped material web according to the invention as Ridge or ridge cover are usually at least the longitudinal edges of the Carrier web and the edge strips exposed to the entry of sunlight, because they emerge from the roofing slabs. For this purpose it can be advantageous that the strip-shaped material web according to the invention at least in some areas, preferably in the entry of sunlight exposed area is UV-resistant. For example, a Stabilization and / or pigmentation of the material web according to the invention to improve their weathering stability.

The process for producing the strip-shaped according to the invention Material web for a ridge or ridge cover is characterized by this from that the plastic film forming the edge strips, by a between two rollers formed first nip is performed, at least one of these rolls has a surface profile in the form of elevations and / or depressions and the plastic film when performing through the first nip under the action of pressure and heat to the Edge strip is plastically deformed and subsequently the deformed edge strips together with the carrier web a second nip formed between two rollers are fed, and at least one of these rollers is one of the rollers of the first nip has corresponding surface profiling and the longitudinal edges of the Carrier web with the deformed edge strips when passing through the  second nip under the action of pressure and heat all over Maintaining the deformation of the edge strips can be connected.

According to an alternative embodiment of the invention The method can also be provided that at least the longitudinal edges of the Carrier web and the plastic films forming the edge strips together are passed through a nip formed between two rollers, wherein at least one of the rollers has a surface profile in the form of Has elevations and / or depressions and the plastic film and Carrier web when passing through the nip below Exposure to pressure and heat to the verge along with the Carrier web are deformed in a wave shape in the connection area, the Edge strips are plastically deformed in a wavy manner and cover the entire surface with the Carrier web to be connected. As a result, the carrier web takes on Longitudinal edges in the connection area to the wavy plastically deformed Edge strips also on their undulating course, so that the with the Edge strip provided carrier sheet plastically to the course of the Roofing tiles are customizable. Here, according to the invention Connection of the edge strips to the carrier web at the same time as their Deformation when passing through the nip so that the number of for the production of the strip-like material web according to the invention required operations is minimized, which is a special economical production of the strip-shaped according to the invention Material web enables.

As a further alternative, the carrier web and the die can also be provided Plastic films forming edge strips in the undeformed state in advance to connect and then pass them together through the nip, whereby the undulating deformation of the edge strips and with it connected longitudinal edges of the carrier web is effected.  

It can also be provided that on the edge strips Plastic film and / or the carrier web before the implementation by the full-surface connection between the edge strips and the carrier web causing nip an adhesive is applied and the Edge strips and the carrier web when passing through this nip fully glue together. Gluing the carrier web with the Edge strips can be applied, for example, to the edge strips and / or the carrier web is applied from a coating prior to joining hot melt adhesive that can be activated thermally in the nip.

According to a further advantageous embodiment of the invention, it can be provided that both rollers forming a nip with Surface profiling in the form of elevations and / or depressions are trained and the rollers with their surface profiles intermesh, such as combing together in the manner of gears.

At least one of the rolls forming the nip is advantageous, which the plastic deformation of the edge strips cause one for the plastic Deformation and / or connection of the edge strips to the carrier web heated enough temperature.

This can also be a z. B. adhesive applied to the edge strips be thermally activated to connect the edge strips with the Carrier web cause. The heat supply can also be so great that additional glue can be dispensed with entirely and the edge strips due to the heating by means of the heated roller by itself with the Carrier web to be connected.

Of course, it is also possible to use the heat supply in front of the Roll heater forming rollers or the like arranged Heat sources for plastic deformation of the edge strips and / or Increase connection with the carrier web with or without adhesive.  

The plastic deformability and connection of the edge strips with the Carrier web can also be increased in that at least the plastic films forming the edge strips before being carried out by the Roll nip are looped around the heated roller so that sufficient heating can take place. In the direction of passage through seen the nip, the heated roll then forms the first roll, with which the plastic films forming the edge strips come into contact. The Plastic foils to be plastically deformed into the edge strips are hereby preferably guided directly against the heated first roller, whereby the heating of the same is further improved.

After connecting the carrier sheet with the edge strips Reinforcement strips in the middle area and / or self-adhesive Adhesive strips in the area of the longitudinal edges of the carrier web on the Edge strips fed away and in the desired areas applied to this.

Again, the reinforcement strip is either by pressure and heat or by using an adhesive, as with the edge strips explained, applied to the carrier web.

A device for producing the strip-shaped according to the invention Material web for a deadline or ridge coverage is characterized by this from that a first pair of rollers with two forming a first nip Rolling is provided, with at least one of the rollers one Surface profiling in the form of elevations and / or depressions and the plastic film forming the edge strips the first Roll nip is fed, such that they are carried out by the Roll gap is plastically deformable and the first pair of rollers downstream a second pair of rollers with two a second nip forming rollers is provided, through which the wavy deformed  Edge strips can be carried out together with the carrier web, the Rollers have a width corresponding to the width of the carrier web and the End regions of the rollers, between which the longitudinal edges of the carrier web passed through the second nip together with the edge strips are thickened and at least the thickened end regions a roller with one of the surface profiles of the at least one profiled roller of the first pair of rollers corresponding Surface profiling are formed so that the edge strips and the Longitudinal edges of the carrier web as it passes through the second nip all over with each other while maintaining the deformation of the edge strips are connectable.

Alternatively, it can also be provided that the device for Production of the strip-shaped material web for a ridge or Burr cover according to the invention has only one pair of rollers, wherein a nip is formed between the rollers and feed devices for the supply of the carrier web and those forming the edge strips Plastic film are provided for the nip. These are like this arranged that the longitudinal edges of the carrier web with the edge strips at Passage through the nip under the action of pressure and heat are connectable. To the edge strips with the To connect carrier web and at the same time plastically wavy in their To deform longitudinal extension, it is proposed that the rollers are one of the Width of the carrier web have a corresponding width and the end regions of the Rollers between which the longitudinal edges of the carrier web with the edge strips are passed through the nip, are thickened and at least the thickened end regions of a roller with a Surface profiling in the form of elevations and / or depressions are formed so that the edge strips and at least the longitudinal edges of the Carrier web as it passes through the nip on the one hand wavy are deformed, whereby the edge strips undergo a plastic deformation  and on the other hand, the edge strips are fully connected to the carrier web become.

According to a further embodiment of the device according to the invention it is provided that both rolls forming a nip with a Surface profiling in the form of elevations and / or depressions are trained and the rollers with their surface profiles are arranged interlocking.

Before passing through the plastic film forming the edge strips the nip on the for plastic deformation and connection with the To heat the carrier web required temperature, at least one of the rolls forming the nip, by means of which the plastic Deformation of the edge strips can be effected, can be designed to be heatable. This Heating can be used to thermally activate one on the verge applied adhesive or serve to glue the edge strips effect with the carrier web. If necessary, before the Additional roller heater or similar heat sources be provided.

The invention is described below using exemplary embodiments in the Drawing explained in more detail.

Show it:

Fig. 1 is a perspective view of a view of a strip-like web material for a ridge or hip covering according to the invention,

Fig. 2 shows a section through the strip-shaped web of material according to arrows BB in Fig. 1,

Fig. 3 is a section through the carrier web according to arrows AA in Fig. 2

FIG. 4a in a schematic representation a device for producing the strip-like web material according to the invention,

Fig. 4b, in a schematic representation a further embodiment of an apparatus for producing the strip-like web material according to the invention,

Fig. 5 in a schematic representation of a roll pair for manufacturing the strip-shaped web of material according to the invention,

Fig. 6 in a schematic representation a side view of the roller pair according to the arrow V in Fig. 5.

In FIG. 1, a strip-shaped web of material 1 is shown for a ridge or hip covering. It includes a 1 b extending from rain and snow flight tight carrier web 10 having a central portion 10a and adjacent to the central region of the longitudinal edges 10 over the entire width of the material web. Along the longitudinal edges 10 b of the carrier web 10 on the upper side 1 wavy plastically deformed in the longitudinal extension L edge strips 12 are in the view of FIG. Deposited and in the central region 10 a of the support web 10, a reinforcing strip 11 is applied. In the area of the edge strips 12 side of the carrier web 10 facing away are self-adhesive strip 13 on the longitudinal edges 10 b of the carrier web 10 is secured.

The carrier web 10 , which is shown enlarged in FIG. 3, consists of an elastically stretchable composite material with a multi-layer, here three-layer structure. An elastic and flexible carrier film 100 is provided as the inner layer, which is formed, for example, from a thermoplastic elastomer, such as a PE / PE copolymer, in a thickness of 0.04 mm. The outer layers of the carrier web 10 are each formed by a nonwoven webs 101 , 102 connected to the carrier film 100 with the formation of cavities 104 which run continuously at right angles to the longitudinal extension of the strip-shaped material web 1 , for example from continuous filaments based on polypropylene. The nonwoven webs 101 , 102 are connected to the carrier film 100 by means of spot welding surfaces 103 arranged in a grid-like manner according to the so-called thermobonding method, the nonwoven webs having a meandering or undulating course and being connected to the carrier film 100 to form the cavities 104 . Here, the wave crests B and troughs T of the undulating nonwoven webs 101 , 102 run approximately perpendicular to the carrier film 100 and are connected to the carrier film in the region of the troughs T by means of spot welding. The carrier web 10 has a high elasticity, in particular transversely to the longitudinal extent of the cavities 104 , ie in the direction of the arrows S in FIG. 3. In the present exemplary embodiment, the orientation of the high elasticity of the carrier web 10 according to the direction of the arrow S is selected such that it extends in the longitudinal direction L. points so that the carrier web 10 is particularly elastic in the longitudinal direction L.

In order to achieve water vapor permeability with simultaneous rain and flight snow tightness, the carrier film 100 can be formed with fine perforations, not shown here, which allow water vapor to pass through, but are impermeable to water drops. These perforations can be produced, for example, when the carrier film 100 is connected to the nonwoven webs 101 , 102 by means of needle rollers or the like.

The production of such a carrier web 10 is described for example in DE 42 38 541 A1.

On the side edges 10 b of the carrier web 1, here on the nonwoven web 101 thereof coated edge strips 12 are made of a plastically deformable plastic strip-shaped blank based on polyolefins, such as polypropylene, HD polyethylene or LD polyethylene or based on PVC and for example by means of a suitable, e.g. B. glued thermally activated adhesive. The edge strips 12 are designed, for example, to have a thickness of 60 μm, which gives them high rigidity. Their plastic deformability is achieved in that the edge strips 12 are formed in a wave-like manner along their longitudinal extension L, the elastic extensibility of the edge strip 12 being exceeded in the area of the bends 122 and the bends 122 being plastically deformed as a result. The undulating course of the edge strips 12 can, for. B. meandering, rectangular, triangular or the like.

It is essential that the carrier web 10 in the area of its longitudinal edges 10 b with the edge strips 12 z. , B. connected by gluing so that the longitudinal edges 10 b of the carrier web 10 in the connecting region 12 follow the same wave-form profile of the edge buckled strips. This makes it possible, the longitudinal edges 10 b of the carrier web 10 in the application of the strip-like material web 1 as a ridge and / or hip covering the profile of the top surface of roofing boards, such as roof tiles of the same adapt by plastic deformation. The middle region 10 a of the carrier web 10 , however, remains in a plane orientation and is not influenced by the undulating course of the edge strips 12 and the longitudinal edges 10 b.

The reinforcement strip 11 applied in the central region 10 a of the carrier web 10 , like the edge strips 12, is formed from a plastic film based on polyolefins, such as polypropylene, HD polyethylene or LD polyethylene, or based on PVC, preferably soft PVC, and is formed on the middle region 10 a of the carrier web 10 on the same side as the edge strips 12 , ie fastened in the present example on the nonwoven web 101 of the carrier web 10 , for example glued on by means of suitable adhesives. By means of the reinforcement strip 11 applied in this way, the central region 10 a of the carrier web 10 is mechanically reinforced and when the strip-shaped material web 1 is used as a ridge and / or ridge cover, this is placed on the respective ridge or ridge beam with the central region 10 a and, for example, by means of nails fixed to the beam. Here, the reinforcement strip 11 prevents the carrier web 10 from being torn out in its state fastened to the ridge or ridge beam and thus serves as a nailing aid. For this purpose, 11 holes 11 may be a formed, can be carried out by each of which a nail for fixing the strip-like material web 1 at the ridge or Gratbalken for example at regular intervals in the reinforcing strip. But of course it is also possible to execute the reinforcing strip 11 without perforations, and as drive the fasteners nails directly through the reinforcing strip 11 and the carrier web 10 and into the ridge or Gratbalken.

Conformability facility and the longitudinal edges 10 b of the carrier web 10 on the upper side of roofing plates, such as tiles is increased by the self-adhesive on the underside, that is applied to the nonwoven web 102 of the carrier web 10 tape. 13 These are preferably constructed from an approximately 10 to 30 mm wide strip based on a bitumen modified with suitable polyolefins and enable the carrier web 10 to be glued to the top of the roofing panels if the strip-shaped material web is used for a ridge or ridge covering.

The preparation of the embodiment shown in FIGS. 1 to 3 strip-shaped web of material 1 is shown in Figs. 4a and 4b schematically with reference to two alternative embodiments.

In the exemplary embodiment according to FIG. 4 a, the carrier web 10 , which is already prefabricated and designed as shown in FIG. 3, is fed from a supply roll 105 to a pair of rolls with rolls 2 , 3 , between which a roll gap 23 is formed. From a further supply roll 120, the edge strips 12 forming the undeformed plastic sheets 12 a likewise the roller pair 2, 3 is supplied, wherein the feed is such that the plastic films 12 a and the longitudinal edges 10 b of the carrier web 10 stacking. The plastic films 12 a placed one on top of the other in this way and the carrier web 10 are subsequently pulled through the nip 23 formed between the rolls 2 , 3 , where they are connected to one another under the influence of the temperature and pressure prevailing there. For this purpose, the plastic films 12 a can be equipped with a suitable adhesive before they are fed to the roller pair 2 , 3 , which is shown schematically by the arrows K in FIG. 4.

The rollers 2 , 3 forming the nip 23 are shown in more detail in FIGS. 5 and 6.

The rollers 2 , 3 are designed in a width corresponding to the width of the carrier web 10 . Both rollers 2 , 3 have a central region 20 , 30 , between which a roller gap 23 b is formed, through which the central region 10 a of the carrier web 10 is pulled as shown in FIG. 4 without being compressed by the rollers 2 , 3 to become. The end regions 21 a, 21 b and 31 a, 31 b of the rollers 2 , 3 are thickened with respect to the central region 20 , 30 of the same and each release a roller gap 23 a which has a smaller internal width L1 than the internal width L2 of the nip 23 b between the central regions 20 , 30 . Through these nips 23 a, the longitudinal edges 10 10 b of the carrier web together with the supplied plastic films 12 a passes, so that the longitudinal edges 10 b of the carrier web 10 and the plastic films 12 a are exposed at the joint passing through the nips 23 a high pressure and corresponding temperatures , whereby the plastic films 12 a with the side strips 10 b of the carrier web 10 are connected, for. B. glued together when using an adhesive or stick to each other due to the high temperatures and pressures in the nip.

The illustration of FIG. 5 is about to be found out, that the thickened portions 21 a, 21 b and 31 a, 31 b of the rolls 2, 3 transversely to the direction of passage of the carrier web 10 and the plastic films 12 a extending surface profiles in the form of Elevations and depressions 22 , 32 are formed. These surface profiles shown only schematically in FIG. 5 are shown in more detail in FIG. 6. In the illustrated embodiment, the roller 2 has surface profiles in the form of depressions 22 , in which the surface profiles of the roller 3 engage in the form of elevations 32 in the manner of meshing gears, so that the plastic films 12 a not only when passing through the nips 23 a with the longitudinal edges 10 b of the carrier web 10 are connected, but out at the same time also in the longitudinal extension L of the wave shape being buckled shape shown in Fig. 1 and so the plastically deformed edge strip 12 are formed in which the Ausknickungen 122 are respectively deformed plastically. It is essential that the plastic films 12 a to the longitudinal edges 10 10 b of the carrier web as it passes through the nips 23 a between the rollers 2 and 3 due to the surface profiles 22, 23 are not only connected to each other, but simultaneously from the plastic sheets 12 a, the Edge strips 12 are formed with the undulated plastic deformations shown in FIG. 1 and the bends 122 are formed. In contrast to this, the central area 10 a of the carrier web does not experience any deformation due to the larger clear width L2 of the nip 23 b compared to L1. Also, no surface profiles are formed in the area 20 , 30 of the roller 2 , 3 .

As a result, thus a connection between the edge strips 12 and the longitudinal edges 10 b of the carrier web 10 obtained, which is oversized, so that the carrier web 10 in the region of the longitudinal edges 10 b of the wave-form buckled profile of the edge strips 12 follows, and which is provided with the edge strip 12 Carrier web 10 can be adapted to the surface design of roofing slabs when placed on a ridge or ridge beam by further plastic deformation of the edge strips 12 .

The compound of the edge strips to facilitate 12 to the carrier web and simultaneous plastic deformation of the edge strips 12, it is also the roll 2, with the edge strip 12 forming plastic sheets 12 a and the carrier web 10 prior to passage through the nip 23 as shown in FIG. 4 first come into contact, heatable and for this purpose has connections 24 for a heating medium. Thus, it is possible for the roll 2 to a compound and for the plastic deformation of the plastic film 12 a with the longitudinal edges 10 b of the carrier web 10 to heat required temperature. For this purpose, the plastic films 12 a and the carrier web 10 are wrapped around the rollers 2 and 3 , so that they experience a longer dwell time on the first and heated roller 2 seen in the passage direction through the roller gap before passing through the roller gap 23 and in addition the Plastic films 12 a are fed to the rollers 2 , 3 so that they rest directly on the surface of the first and heated roller 2 before passing through the roller gap 23 , whereby the heating thereof is increased again.

The effective heating of the edge strips 12 and / or carrier web 10 can be dimensioned such that an adhesive applied according to arrows K in FIG. 4, for example a hot-melt adhesive, is thermally activated before the connection, or the heating is so great that the edge strips differ from one another connect to the carrier web as it passes through the nip.

Furthermore, provision can be made to further increase the heating of the plastic films 12 a and / or carrier web 10 forming the edge strips 12 by means of heat rays W from a radiant heater (not shown in detail) before passing through the nip.

In the alternative embodiment shown in FIG. 4b are shown two consecutive pairs of rolls, the rolls 2 a, 3 a and 2 b, 3 b are formed. A first nip 23 a is formed between the rolls 2 a, 3 a forming the first pair of rolls, and a second nip 23 b is formed between the rolls 2 b, 3 b forming the second pair of rolls. Both the roller nips 23 a and 23 b forming roller pairs have a surface profile with interlocking elevations and depressions, as has already been described above with reference to FIGS. 5 and 6.

To connect the edge strips 12 to the carrier web 10 , in the exemplary embodiment according to FIG. 4b, the still undeformed plastic films 12 a, which form the edge strips 12, are first fed from a supply roll 120 to the first pair of rolls formed by the rolls 2 a and 3 a and by the Passed nip 23 a. Here, the plastic films 12 a are in the nip 23 a prevailing elevated temperature and pressure in the longitudinal extent wavy to the edge strip 12 plastically according to the surface profiles of the rolls 2 a, 3 a deformed.

The plastic deformation of the edge strips 12 in the nip 23 a is supported by the fact that the first roller 2 a seen in the feed direction of the edge strips is heatable and is heated to a temperature required for the plastic deformation of the edge strips 12 . In addition, the plastic strips 12 a forming the edge strips are looped around the roller 2 a, so that they experience a longer dwell time on the heated roller 2 a before their plastic deformation in the nip 23 a to the edge strips 12 and can be heated sufficiently.

Subsequently, the longitudinally plastically deformed edge strips 12 reach the second roller gap 23 b formed between the rollers 2 b, 3 b, into which the carrier web 10 is also fed from a supply roll 105 at the same time. As described already with Fig. 4a, the supply is effected such that the edge strips 12 and the longitudinal edges 10, b of the carrier web 10 stacking.

As a result of the rollers 2 b, 3 b provided with the same surface profile as in the case of the rollers 2 a, 3 a, when the edge strips 12 and the carrier web 10 are carried out together, on the one hand it is prevented that the wave-shaped deformation of the edge strips 12 generated in the roller gap 23 a is lost, on the other hand a full-area effected in accordance with the wave-shaped course of the edge strip 12 of the same connection is made with the carrier web 10 in the area the longitudinal edges 10 b. For this purpose, it can in turn be provided, for. B. to apply the carrier web 10 in front of the nip 23 b with an adhesive K and / or heat rays W.

As a result of the two-stage procedure in this way, with plastic deformation of the edge strips 12 taking place in a first, heated roll nip and only subsequent connection of the already deformed edge strips 12 to the carrier web 10 , the thermal load on the latter is reduced. If necessary, however, one or both rollers 2 b, 3 b can be heated to a temperature required for connecting the carrier web 10 to the edge strips 12 . This temperature is usually below the temperature required for the plastic deformation of the edge strips 12 in the nip 23 a.

Once in one of the previously described ways according 4a or 4b, the plastic Fig. 12 have been a with the longitudinal edges 10 10 b of the support sheet under plastic deformation and formation of the edge strips 12 which are subsequently from supply rolls 13 a and 11 a self-adhesive tape 13 on the edge strip 12 side facing away from and reinforcing strip 11 on the same side as the edge strip 12 of the carrier web 10 fed between rollers 4 a, 4 b connected thereto, so that subsequently receive the position shown in FIG. 1, strip-like material web 1 is and can be wound up on a supply roll 5 for further assembly and use.

Both 12 with the side strip 10, the edge strips b in the compound of the edge strips of the carrier web 10 as well as the connection of the reinforcing strip 11 with the central portion 10 a of the backing web 10 may be each provided by material properties, 12 and / or the reinforcing strip 11 only by the action of of pressure and heat to connect to the carrier web 10 or to use suitable adhesives, in particular so-called hot melt adhesives for the connection to the carrier web 10 . These can be applied as a coating to the edge strip 12 or the plastic films 12 a or the reinforcement strips 11 during the manufacture thereof, or the adhesives are applied to the carrier web 10 immediately before the edge strips 12 or the plastic films 12 a are formed or reinforcement strips 11 applied to the carrier web 10 thereon.

Claims (28)

1. Strip-shaped material web for a ridge or ridge cover with a rain and fly snow-tight carrier web, which has a width corresponding to the width of the material web and in which at least in the region of the outer longitudinal edges of the carrier web a plastically deformable edge strip is applied in such a way that the with the carrier web provided with the edge strip is adaptable to roof covering panels, characterized in that the carrier web ( 10 ) is formed from a composite material with a multilayer structure which is elastically stretchable in at least one direction, in which a layer is formed from an elastic and flexible carrier film ( 100 ) and at least On one side of the carrier film ( 100 ) there is provided as a further layer a nonwoven web ( 101 or 102 ) connected to the carrier film ( 100 ) with the formation of cavities ( 104 ), the nonwoven web being used by means of thermobonding or ultrasonic welding in punctiform or linear areas hen is connected to the carrier film ( 100 ) and the edge strip ( 12 ) is formed from a plastically deformable plastic film and is undulated in the longitudinal direction (L) of the material web and is connected to the carrier web ( 10 ) over the entire surface. 2. Strip-shaped material web according to claim 1, characterized in that the carrier web ( 10 ) is formed of three layers, with on each side of the carrier film ( 100 ) a nonwoven web ( 101 , 102 ) as an outer layer with the formation of cavities ( 14 ) with the carrier film ( 100 ) is connected as an inner layer. 3. Strip-like material web according to claim 1 or 2, characterized in that the nonwoven webs ( 101 , 102 ) of the carrier web ( 10 ) have a wave-shaped course, the wave crests and troughs being perpendicular to the carrier film ( 100 ) and are connected in regions to the carrier film ( 100 ). 4. Strip-like material web according to claim 3, characterized in that the undulating nonwoven webs are connected in the region of their troughs with the carrier web ( 10 ). 5. Strip-shaped material web according to one of claims 1 to 4, characterized in that the carrier film ( 100 ) of the carrier web ( 10 ) is formed from a rubber-elastic thermoplastic elastomer. 6. Strip-shaped material web according to one of claims 1 to 5, characterized in that the thickness of the carrier film ( 100 ) of the carrier web ( 10 ) is 0.01 to 0.08 mm. 7. Strip-shaped material web according to one of claims 1 to 6, characterized in that the carrier film ( 100 ) is formed with perforations of such a size that they allow water vapor to pass through and reject the passage of water drops. 8. Strip-shaped material web according to one of claims 1 to 7, characterized in that the nonwoven webs ( 101 , 102 ) of the carrier material ( 10 ) are made on the basis of polyolefins, such as polypropylene or a polyester. 9. Strip-shaped material web according to one of claims 1 to 8, characterized in that a reinforcing strip ( 11 ) is applied in the central region of the carrier web ( 10 ). 10. Strip-shaped material web according to one of claims 1 to 9, characterized in that the edge strips ( 12 ) and / or the reinforcement strips ( 11 ) made of a plastic film based on polyolefins, such as polypropylene, HD polyethylene or LD polyethylene or a soft -PVC is formed in a thickness of 40 to 100 microns. 11. Strip-shaped material web according to one of claims 9 or 10, characterized in that the reinforcing strip ( 11 ) is perforated. 12. Strip-shaped material web according to one of claims 1 to 11, characterized in that the edge strips ( 12 ) and / or the reinforcement strips ( 11 ) are glued to the carrier web ( 10 ). 13. Strip-shaped material web according to one of claims 1 to 12, characterized in that in the region of the longitudinal edges of the carrier web ( 10 ) on the side of the carrier web ( 10 ) facing away from the edge strips ( 12 ), self-adhesive adhesive strips ( 13 ) based on bitumen and / or a butyl rubber are applied to the carrier web ( 10 ). 14. Strip-shaped material web according to claim 13, characterized in that the adhesive strips ( 13 ) are covered by means of a removable cover strip made of a plastic film or siliconized paper. 15. Strip-shaped material web according to one of claims 1 to 14, characterized in that the edge strips ( 12 ) and the reinforcing strip ( 11 ) are applied to the same side of the carrier web ( 10 ). 16. Strip-shaped material web according to one of claims 1 to 15, characterized in that it is UV-resistant at least in some areas is equipped.   17. A method for producing a strip-shaped material web for a ridge or ridge cover with a rain and flight snow-tight carrier web and along the longitudinal edges of the carrier web applied plastically deformable edge strips according to one of claims 1 to 16, characterized in that the edge strips ( 12 ) forming Plastic film ( 12 a) is guided through a first roll nip ( 23 a) formed between two rolls ( 2 a, 3 a), at least one of these rolls having a surface profile in the form of elevations and depressions, and the plastic film ( 12 a) during Carrying through the first roll nip ( 23 a) under the action of pressure and heat to the edge strips ( 12 ) is plastically deformed and then the deformed edge strips ( 12 ) together with the carrier web ( 10 ) a second between two rollers ( 2 b, 3rd b) trained nip ( 23 b) are fed, and at least one of these rollers n has a surface profile corresponding to the rollers ( 2 a, 3 a) of the first roller gap ( 23 a) and the longitudinal edges ( 10 b) of the carrier web ( 10 ) with the deformed edge strips ( 12 ) when passing through the second roller gap ( 23 b) under the action of pressure and heat over the entire surface while maintaining the deformation of the edge strips ( 12 ). 18. A method for producing a strip-shaped material web for a ridge or ridge cover with a rain and snow-proof carrier web and plastically deformable edge strips applied along the longitudinal edges of the carrier web according to one of claims 1 to 16, characterized in that at least the longitudinal edges of the carrier web ( 10 ) and which are guided (12 a) together by a between two rollers (2, 3) formed nip (23) the edge strips (12) forming plastic films, wherein at least one of the rolls has a surface profiling in the form of elevations and / or depressions, and the plastic film ( 12 a) and the carrier web ( 10 ) when being passed through the nip under the action of pressure and heat to the edge strips ( 12 ) together with the carrier web in the composite area are deformed in a wave shape, the edge strips ( 12 ) being plastically shaped in a wave shape be and full-surface with the carrier web ( 10 ) are connected. 19. The method according to any one of claims 17 or 18, characterized in that on the plastic film ( 12 a) and / or the carrier web ( 10 ) before the implementation through the full-surface connection between the edge strips ( 12 ) and the carrier web ( 10 ) effecting roller nip ( 23 b or 23 ) an adhesive is applied and the edge strips ( 12 ) and the carrier web ( 10 ) glue together when passing through this roller nip ( 23 b or 23 ) with each other. 20. The method according to any one of claims 17 to 19, characterized characterized in that both rolls forming a nip with Surface profiling in the form of elevations and / or depressions are trained and the rollers with their surface profiles interlock. 21. The method according to any one of claims 17 to 20, characterized in that at least one of the rolls forming the nip, which cause the plastic deformation of the edge strips ( 12 ), with a for the plastic deformation and / or connection of the edge strips ( 12 ) the carrier web ( 10 ) is heated to a sufficient temperature. 22. The method according to claim 21, characterized in that at least the edge strips ( 12 ) forming plastic films ( 12 a) are looped around the heated roller before being carried out through the nip and are guided directly against the heated roller. 23. The method according to any one of claims 17 to 22, characterized in that after deforming and connecting the edge strips with the carrier web, a reinforcing strip ( 11 ) on the central region of the carrier web ( 10 ) and / or self-adhesive strips on the longitudinal edges of the carrier web ( 10 ) are applied on the side facing away from the edge strips ( 12 ). 24. A device for producing a strip-shaped material web for a ridge or ridge cover with a rain and fly snow-tight carrier web and along the longitudinal edges of the carrier web applied plastically deformable edge strips according to one of claims 1 to 23, characterized in that a first pair of rollers with two a first Roll gap ( 23 a) forming rollers ( 2 a, 3 a) is provided, at least one of the rollers ( 2 a, 3 a) having a surface profile in the form of elevations and / or depressions and the plastic film ( 12 a) forming the edge strips the first nip (23 a) can be fed, such that it is wavy plastically deformable when passing through the nip to the edge strip and the first roll pair arranged downstream of a second pair of rollers with two a second nip (23 b) forming rollers (2 b, 3 b) is provided, through which the wavy deformed edge strips ( 12 ) together can be carried out with the carrier web, the rollers ( 2 b, 3 b) having a width corresponding to the width of the carrier web ( 10 ) and the end regions of the rollers ( 2 b, 3 b), between which the longitudinal edges of the carrier web ( 10 ) together with the edge strips ( 12 ) through the second nip ( 23 b), are thickened and at least the thickened end regions of a roller are designed with a surface profile corresponding to the surface profile of the at least one profiled roller of the first pair of rollers, so that the edge strips ( 12 ) and the longitudinal edges ( 10 b) of the carrier web as they pass through the second roller gap ( 23 b) can be connected to one another over the entire area while maintaining the deformation of the edge strips. 25. A device for producing a strip-shaped material web for a ridge or ridge cover with a rain and fly snow-tight carrier web and along the longitudinal edges of the carrier web applied plastically deformable edge strips according to one of claims 1 to 23, characterized in that a pair of rollers, between which a nip is formed, and feed devices for the common supply of the carrier web ( 10 ) and the plastic film forming the edge strips ( 12 a) to the nip are provided such that the carrier web ( 10 ) with the edge strips ( 12 ) during passage through the nip under the action of pressure and heat are connectable and the rollers have a width corresponding to the width of the carrier web and the end regions of the rollers, between which the longitudinal edges of the carrier web ( 10 ) are guided together with the edge strips ( 12 ) through the nip, are thickened and at least the thickened n end regions of a roller are formed with a surface profile in the form of elevations and / or depressions, so that the edge strips ( 12 ) and at least the longitudinal edges of the carrier web ( 10 ) are deformed in a wave shape when passing through the roller gap, the edge strips ( 12 ) being plastic Experience deformation and be fully connected to the carrier web. 26. Device according to one of claims 24 or 25, characterized characterized in that both rolls forming a nip with a Surface profiling in the form of elevations and / or depressions are trained and the rollers with their surface profiles are arranged interlocking. 27. The device according to one of claims 24 to 26, characterized in that at least one of the rolls forming the nip, by means of which the edge strips ( 12 ) are plastically deformable, is heatable. 28. The apparatus according to claim 24 to 27, characterized in that the rollers forming the nip arranged downstream feed devices for the supply and application of reinforcing strips ( 11 ) on the central region of the carrier web ( 10 ) and / or adhesive strips ( 13 ) on the longitudinal edges of the Carrier web ( 10 ) are provided on the side facing away from the edge strips ( 13 ).