EP0953722A1 - Profiled sealing strip for windows, doors and the like - Google Patents

Abstract

The seal, which is especially for windows and doors etc, comprises areas of differing hardness, and inserts (32,33,34,62) which limit expansion. The softer seal areas (10) are made of thermoplastic elastomers. The inserts (32,33,34) themselves are made of a harder material, e.g. a polyolefin. Use - A seal for e.g. doors or windows. Advantage - The seal has good stability, and can be reused.

Description

The invention relates to a sealing profile, in particular for windows, doors or the like, comprising a foot-side holding section with at least one for engaging in a receptacle provided holding means and a head-side sealing section, the holding section and the sealing portion are interconnected and the holding means through a leg-like web part having a projecting retaining lip is formed, which articulated on a with the sealing profile extending longitudinally, a base of the Holding section articulated wall and when spreading together due to insertion in the absorption against elastic resilience is evasive. Seals of the above Art can be used for a variety of applications. They preferably serve for sealing a window sash against a window frame or a door leaf against a door frame. They prevent the ingress of air and / or moisture due to the element to be sealed and also act as sound insulation.

In order to achieve a high sealing effect, known sealing profiles exist at least in the area of functional parts made of soft material. However, soft elastic materials are relative expensive. Therefore, non-sealing areas are made of harder, less expensive material. Seals are known (DE-U1-296 09 976) in which the sealing function takes over Areas made of thermoplastic elastomers (TPE) and other areas made of ethylene vinyl acetate (EVA) exist. Known sealing profiles also have tension-resistant inserts (e.g. B. DE-U1-9402689.0; EP-A1-0436810). The inserts serve to absorb tensile forces, that occur during the assembly of the seal and they limit the stretching, namely the stretching of the profile. The tensile inserts usually consist of wires, textile, polyester or cotton threads. The wires and threads hinder reuse and recycling of the sealing profile material, since the material components are not compatible and their separation from recycling is uneconomical.

Sealing profiles are also known (e.g. DE-U1-9402689.0; EP-A1-0436810), which up to are provided with a reinforcement rear wall at the foot-side end of the holding section, which is made of a material that is much harder than that of the other strand seal. The hard wall is intended to prevent it from buckling when the seal is inserted into the receptacle and form a sliding aid for insertion into the receptacle. The hard wall must go through at least a retaining lip must be clamped sufficiently firmly against the receiving wall. To for this purpose, the articulation of the sealing lip should be relatively stiff. To do that Inserting the seal into the receptacle will facilitate, however, in the area of the; steering internal grooves provided (DE-U1-9402689.0). This leads to a weakening the clamping and consequently to an unwanted detachment from the receiving groove. This is countered by the fact that several retaining lips are provided.

Another known sealing strip consisting of a full profile is made of elastic soft plastic foam is formed, which is covered with a water-repellent layer (US 4,535,564). To fix the sealing strip in a groove, one is made of plastic foam formed anchoring section embedded in a hook-shaped bar. The hook bar is made of a material that is less compressible than that Plastic foam. It is intended to give strength to the anchoring section and the introduction facilitate the anchoring section into an anchoring groove. The with the hook-elastic bar filled with the resilient plastic material is compressed for insertion. The receiving groove is provided with an additional recess in which one leg to enclose the hook bar under relaxation. The manufacture of the sealing strip with Such a hook bar is expensive. There is a risk that the sealing strip in the Removal from the groove is destroyed because the springing leg of the hook bar in the associated Recess is caught.

The invention has for its object to provide a sealing profile, in particular with regard to assembly, sealing function, liability in the profile holder, dimensional stability and easier, cheaper and environmentally friendly producibility should be improved.

This object is achieved in combination with the features of the sealing profile of the type mentioned solved in that the web part on its assigned Recording facing side with at least one in the longitudinal direction and transverse to the direction of insertion of the sealing profile extending, a sliding insert of the web part in the Recording supporting layer is provided from a material that is harder than that with the Layer provided material of the web part, the web part in the head-side contact area the projecting retaining lip with the receptacle is free of the hard layer and the Hard layer acts as a rigid pivoting element that in at least one zone of the softer material of the web part a material compression that complicates the spreading of the web part causes. This achieves a number of advantages. The provided according to the invention and arranged hard layer favors the spreading of the web part, so that a significant reduction in resistance when inserting the sealing profile in the associated profile recording is effected. The sealing profile arrives without using Lubricants such as silicone oil or the like are particularly smooth-running with optimal sliding properties into the profile groove. The hard material layer that runs through the length of the seal serves as a so-called stretching brake in the form of a hard material core integrated into the web soft material, the stretching and undesirable deformation of the during and after assembly Reliably prevented the extruded profile. The layer-free web material and the head side Sealing material is much more extensible in the longitudinal direction of the profile than the rigid web layer. As a result of a convex effect caused thereby on the head side of the profile The curvature of the profile strand in the longitudinal direction becomes part of the insertion into the profile groove a kind of snap effect. The stripe-like over the length of the profile strand Due to their upright geometry, the rigid web layer ensures that it is transverse to the articulated one Wall for high torsional stiffness of the profile in the area of the clamp connection holding lip in the receptacle. Overall, are essential handling and Functional advantages, especially when the sealing profile is rolled into a machine Profile recording reached. The web part bridges the profile cross section of the receptacle in shape of an articulated leg. The leg that can be swiveled around the articulation area and the articulation area are form-retaining and shaping components of the seal. The The material of the joint area determines the spreading behavior of the articulated leg. Here there is a significant additional combination effect of the strip-like web hard layer in that the spreading of the web part when inserting / pressing into the receptacle is essential is easier than spreading under tensile stress against the direction of insertion or when removing from the profile holder. Because of the pronounced directional characteristic mentioned the holding section is in a rich and stable contact and sealing seat in the profile recording. The web hard layer causes in the state in the associated recording used holding section a kind of anchoring, the sealing seat, stability and function significantly improved. The hard layer forming an arm-like material-rigid swivel element the thigh web works in conjunction with the softer thigh material transversely tilting pressure rod, the pressure resistance of which increases with increasing spreading of the web leg increased. This is achieved by the fact that when the strip-like elements are jammed Hard layer the softer material of the web leg in the edge and end areas of the hard layer is compressed much more than in its central strip area. By the The place of attachment of the hard layer is particularly the effect of the anchoring pronounced depending on the size and direction of the force acting on the web part. Alone this increases the adhesion and sealing effect of the sealing foot in the associated Profile recording reached. With the rigid web layer, the sealing profile according to the invention also particularly easy to manufacture by saving material that is too cost-effective Lead manufacture. Last but not least is due to material saving Execution of the seal and the pronounced anchoring effect the life and The service life of the seal is increased. On the other hand, the one achieved according to the invention allows Compression of the softer material when a certain size is exceeded against the direction of action also a non-destructive removal of the Sealing profile from the profile holder.

The insertion of the sealing profile into the profile receptacle is advantageous not only through the hard layer surface in combination with the softer material of the web part favors, but also in that the hard layer on the support foot lower surface with a sliding surface exposed.

The holding means of seals according to the invention are particularly advantageous as lip and / or hollow chamber profiles in contrast to solid profiles. The one with the hard layer Provided web leg parts give way when material is spread and spread Space out. The throat between the leg part provided with the hard layer and the This articulating wall is free of material, which on the one hand causes the holding leg to be spread apart is favored, while on the other hand by means of the chosen extension of the hard layer the compression area in the softer web material is precisely determined and determined.

In a particularly preferred embodiment of the invention, the web part is arrow-shaped in profile Hollow chamber foot formed. Two V-shaped arranged on an associated profile wall articulated limb parts each provided with the hard layer limit the area of the arrow-shaped crown together. Be under the action of spreading force the adjacent parts made of the soft web material by means of the strip-like arm-like hard layers pressed together, causing one of the spreading in especially counteracting compression zone arises. The material compression in the transition area between the two legs can be particularly useful be provided that the foot surface of the holding foot in the region of the arrow-shaped Top is free of the hard layer.

In the case of known hollow chamber foot seals, it is often necessary to cover the entire area Holding section a sliding layer and in particular lubricants such as glycerin or silicone to apply. The use of lubricants is not only expensive and labor intensive, but there is also a risk of harm to health, and the lubricants pollute the environment. The use of lubricants can also impair the sealing effect. With frequent use and due to environmental influences, e.g. B. by moisture, Dust and temperature, the seal seat can deteriorate, and there is Danger that the sealing profile unwanted detaches from its profile receptacle, which disadvantageous sealing gaps arise and also the operation of the with the sealing profiles provided windows, doors, etc. is significantly impaired. Such disadvantages are also eliminated by the hollow chamber foot according to the invention.

To progressive across the base of the sealing profile with a transverse hard layer To effect anchoring force, it is also particularly useful to hold the web part hinged to a wall, which is essentially in the central area of the Web part formed hard layer with this over the softer web part material carrying it connected is.

In another embodiment of the invention, the holding section and the sealing section connected to each other via a profile back, the profile back preferably is provided with a back layer extending to the foot end, which is harder than that backing of the seal provided with the backing layer. Particularly advantageous the transition area between the underside of the web part and the profile back remains free from the web part hard layer.

In all embodiments of the invention, the one forming the retaining lip is expedient free side end of the web part provided free of the hard layer. Particularly useful it is, especially for holding lips of an arrow-shaped holding foot in connection with profile recordings in metal or plastic elements that the free lip forming the retaining lip End of the web part made of thermoplastic elastomer (TPE), so that it is a braking Has an effect against pulling out.

In an expedient embodiment, the holding lip, viewed in profile cross section, is at least provide two holding tips coming into contact with an associated receiving wall, wherein a lower holding tip has the hard layer and preferably in the untensioned State jumps back against an overlying holding tip.

It is particularly advantageous that the hard layer of the retaining web part as a plate-like, in Ratio to the profile thickness of the web part provided with the hard layer thin layer, the the lower surface of the foot is exposed, can be formed.

The hard layer is preferably a polyolefin, preferably a polyethylene, the softer parts of the seal are formed from thermoplastic elastomers (TPE). So In particular, ready-to-assemble profiles can be co-extruded in one operation produce. The foot hard layer can be targeted to the target, partially and locally Places are applied where it performs the functions explained. The designated The combination of materials also ensures high dimensional stability and thus a high sealing effect. It is also particularly advantageous that the sealing material with all components as Recycled product in the form of regrind can be reused. Preferably a coordinated softer material mixed with the desired hardness. The recycling product is available inexpensively and allows environmentally friendly Manufacturing.

Fig. 1

im Profilquerschnitt ein Ausführungsbeispiel eines Dichtungsprofils mit pfeilförmigem Halte-Hohlkammerfuß,

Fig. 2

im Profilquerschnitt ein Ausführungsbeispiel eines erfindungsgemäßen Dichtungsprofils mit insbesondere für Stahltürrahmen vorgesehenem Halte-Hohlkammerfuß,

Fig. 3

im Profilquerschnitt ein Ausführungsbeispiel einer erfindungsgemäßen Dichtung mit einer Schenkel-Haltelippe, insbesondere für Holzfenster,

Fig. 4

im Profilquerschnitt ein Ausführungsbeispiel eines erfindungsgemäßen Dichtungsprofils mit doppelter Stegteil-Haltelippe und

Fig. 5 und 6

im Profilquerschnitt Ausführungsbeispiele erfindungsgemäßer Dichtungsprofile mit zwei Paaren von Stegteil-Haltelippen.

Subclaims are also directed to still other expedient and advantageous embodiments of the invention. Further advantages and embodiments or possibilities of the invention emerge from the following description of the exemplary embodiments shown in the schematic drawing. Show it

Fig. 1

in the profile cross section an embodiment of a sealing profile with an arrow-shaped holding hollow chamber foot,

Fig. 2

in the profile cross-section an embodiment of a sealing profile according to the invention with a hollow chamber foot provided in particular for steel door frames,

Fig. 3

in profile cross section an embodiment of a seal according to the invention with a leg holding lip, in particular for wooden windows,

Fig. 4

in profile cross section an embodiment of a sealing profile according to the invention with a double web part holding lip and

5 and 6

In the profile cross section, exemplary embodiments of sealing profiles according to the invention with two pairs of web part holding lips.

Sealing profiles of the type concerned serve to seal windows, doors or the like and are particularly to be used as a wing or frame seal. You are for Example can also be used as a rollover seal. The shown in Figures 1 to 6 Exemplary embodiments represent only a few of the multitude of possible uses.

Sealing profiles 10 according to FIGS. 1 to 6 are produced in the extrusion process. They exist essentially from a holding section 11 and a sealing section 12. The foot side arranged holding section 11 and the sealing section 12 arranged on the head side connected by web sections (Fig. 1, 2, 5) or profile back 13 (Fig. 3, 4, 6). The holding section 11 is arranged at the foot end of the sealing profile 10 and is used for Hold the same in a profile receptacle 14, which is part of a frame or a frame is.

As all the exemplary embodiments make clear, the holding means 21 comprises a web part 240, which is provided for engaging in a receptacle 14 and in this a bridging clamp to create a firm seat. The web part 240 has at least a projecting retaining lip 22. In the seat in the associated profile receptacles 14 the free lip end on the receiving wall.

Each retaining web part 240 is articulated to an associated wall 371 to 375, which extends longitudinally with the sealing profile 10 and through a foot stem 110 of the holding section 11 is formed. The web part 240 is formed by at least one arm-like leg 241 formed, which when inserting the sealing profile 10 around the area of an imaginary Articulation axis 220 can raise. On the other hand, when pulling force is reached the leg 241 by the action of a moment on the free end of each holding lip 22 increasingly in a position transverse to the foot stem 110, through which across the width the receptacle 14 creates a connection which increases the seating strength. To this end each leg 241 of the web part 240 has on its associated receptacle 14 Underside one extending in the longitudinal direction and transversely to the direction of insertion D. Hard layer 41, 42, 56. This layer is harder than the material of the Web part 240, and it is exposed on the holding foot lower surface of the web part leg 241. The flat hard layer 41, 42, 56 is characterized in that it is in the direction of its long wide edge is relatively rigid, while it is, albeit to a lesser extent than the soft Web material, remains bendable to a certain extent in the longitudinal direction. It forms one the sliding use of the holding means 21 in the receptacle 14 favoring sliding layer. As will be described in more detail below, the web parts 240 form in connection with the Hard layers 41, 42, 56 elements acting as tie rods, the anchor effect depending is strengthened by tensile force in the direction Z.

In the preferred embodiments shown in the figures, the sealing profiles are made 10 essentially from a resilient restoring force generating thermoplastic Elastomer (TPE). The hard layers 41, 42, 56 consist of polyolefin and preferably polyethylene. The material of the hard layer 41, 42, 56 is in relation to that they carry softer web material so hard that in the direction transverse to the foot stem 110 the web part 240 exerts compressive forces essentially through the hard layer 41, 42, 56 transmitted, which acts as a kind of pressure rod. The web part 240 or the Legs 241 receive their resilient force from the elasticity of the softer Material on which the hard layers 41, 42 are attached. The profile shape is the Seal determined by the web and rib structure formed from the softer material. The wall of the web part 240 is relatively flat. Their strength is of the order of magnitude the articulating wall of the trunk 110. The restoring force of the articulation of the web part is essentially through the material section of the transition point between the web part 240 and the wall that articulates this.

In the exemplary embodiment according to FIG. 1, the sealing section 12 is formed by a hollow tube Element formed with a contact wall 52. The sealing section 12 goes directly into the holding section 11, which is supported by an arrow-shaped hollow chamber foot 37 is formed. The arrow-shaped foot section is formed by the web part 240, which is two V-shaped arranged legs 241. The legs 241 are with retaining lips 22 on the vertical longitudinal side walls of the stem 110 hollow with the chamber 210 protrude.

On the lower surfaces of the legs 241 are those which extend with the sealing profile 10 Hard layers 41 and 42 attached. These are characterized by a strip-like and plate-like, surface-limited coating formed. The foot surface of the holding foot 37 is in the area of the arrow-shaped apex 53 free from the hard layer 41 or 42.

A profile receptacle 14 associated with the holding foot 37 has a gap-like opening 38, the width of which is slightly less than the width of the hollow stem 110. When pushing in of the sealing profile 10 in the receptacle 14, the hard layers 41, 42 reach an inclined position against the opening edges. By exerting pressure in the direction of insertion D raise the legs 41, 42 by imagining each around the area of the associated Swivel pivot axis 220. Each swivel axis area is formed by that the longitudinal wall 371 or 372 of the base trunk 110, viewed in the base profile cross section, in the central region 370 of the hard layer 41 or 42 formed on the web part 241 this is connected via the softer material of the web part 240 which carries it.

It can be seen that the spreading up or folding in of each leg 241 by sliding hard layers 41, 42 onto the opening edges of gap opening 38 and by moving the legs 241 into the area of the material-free hollow chamber 210 is much easier. It is also advantageous that the two legs 241 in the area of the apex 53 only merge into one another via the relatively soft material of the web part 240. When inserting the holding foot 37 into the groove or opening 38 of the profile holder 14, the walls 371, 372 become inward into the area of the chamber 210 crowded, which also encourages the folding up. The foot 37 comes under Snap action in the receptacle 14.

In the inserted state of the sealing profile 10, the walls of the gap opening 38 come in tight sealing seat between the retaining lips 22 and the underside of the head sealing section 12 to lie. The holding lips 22 are almost in their to the walls 371, 372 right angle projecting head-side edges 6 free of the holding layer 41, 42, see above that there the material of the legs 241 made of thermoplastic elastomers (TPE) exposed. As a result, the adhesive and contact edge is on the inner edges of the gap opening 38 particularly pronounced.

In the event of tensile stress in the Z direction, the rubber-like erasing upper edges of the Retaining lips 22 exert a force that causes the legs 241 to wrap around the areas of the imaginary articulating axes 220 pivot and thus increasingly into a flatter one Transverse position in the associated profile holder. The softer web material compressed in the area of the apex 53, and it is advantageous that the crushed material can move slightly into the region of the hollow chamber 210. The spreading movement the V-leg 241 is essentially due to the pivoting about the areas of the axes 220 platelet-like strip hard layers 41, 42, the arm-like rigid pivoting elements form, favors. In this case, compressive force is also exerted on the adhesive edges of the holding lips 22, whereby 22 compressions of the soft material in the area of the free edges of the lips and, moreover, the compression of the soft material in the region of the apex 53 can be effected. So the longitudinal edges of the plate-like strip layer 41, 42 press up to one some degree into the softer web material, which makes it compact as a kind of meat material or is compressed. In combination with the one acting in the transverse direction as a pressure rod Hard layer 41, 42 increases the degree of wedging. The tensile resistance of the as a tie rod acting holding section 11 increases with the spreading legs 241.

The tie rod effect is so pronounced that the sealing profile 10 is released counteracted particularly in long extending continuous sections becomes. The seal is used to separate the holding foot 37 from the profile receptacle 14 appropriately grasped from one end of the strand and pulled out in the direction Z. This is it is possible to set the foot 37 against the elastic restoring force of the soft material to detach its profile holder 14.

2 shows a sealing profile according to the invention which is provided in particular for steel door frames 10 shown in the unassembled relaxed state. A holding foot 37.1 is as in FIG. 1 hollow and with an arrow-shaped foot surface in profile cross-section. While the thighs 241 in FIG. 1 adjoin each other at an angle of approximately 90 °, the legs 241 go according to Fig. 2 with a relatively large obtuse angle into each other, and the legs 241 are with retaining lips projecting relatively far outwards from the walls 371, 372 of the base trunk 110 22.5, 22.6. So you can see the legs 241 as particularly pronounced Look at two-armed levers that can be pivoted about the regions of the imaginary pivot axes 220 are and their swivel stiffness through the arm-like, as rigid swivel elements acting hard layers 41, 42 is determined. Due to the pronounced obtuse angle The apex region 53, which remains free of the hard layers 41, 42, is in combination with the relatively far protruding retaining lips 22.5, 22.6 on the one hand achieves that the retaining foot 37.1 under the action of the elastic restoring force of the softer material of the web part 240 through V-shaped spreading of the legs 241 particularly smoothly into the groove of the Profile receptacle 14 can be pressed. The hard layers 41, 42 are exposed Provide sliding surfaces, which press the sealing profile 10 in direction D and thus additionally favor the assembly. On the other hand, the apex area 53 forms under tensile stress in the direction of Z a very effective compression zone 230. This causes when spreading the leg 241 in the groove of the receptacle 14 is particularly pronounced Clamping cross-seat reinforcing clamping force.

The walls 371, 372 of the holding foot 37.1 are, viewed in profile cross section, in the middle Area 370 of the respective hard layer 41, 42 with this over the softer web material carrying it connected. As a result, the walls 371, 372 form with the associated hard layers 41, 42 particularly effective T-shaped anchoring structures. During the press fit due to the resilient restoring force of the web / rib material of the holding section 11 pronounced holding adhesion of the holding lips 22.5, 22.6 on the longitudinal side walls of the profile groove achieved. The fact that the free lateral ends forming the holding lips 22.5, 22.6 contributes to this of the web part 240 are free from the hard layers 41, 42.

The sealing profile 10 according to FIG. 2 has additional, in the profile cross section directed upwards Holding lips 22.7 to 22.9 in a stacked or ladder arrangement. The two Lips 22.8, 22.9 are provided over lip 22.6. On the other foot wall is 371 Above lip 22.5, lip 22.7 is arranged, which with lip 22.8 is a V-shaped one Wedge structure forms. All of these lips are expediently dashed on the foot side provided hard sliding layers 41.3 and 42.3. This also gives them the thighs with upper lips the directional characteristic described by the hard layers 41.3, 42.3. As can be seen from all the exemplary embodiments, all of them act in the profile receptacle 14 transversely extending hard layers 41.3, 42.3 as sliding systems, as Cross-compression bars, as tensile souls and as compression elements, whereby also Material of the seal 10 with all the components is recyclable by grinding and thus environmentally friendly and inexpensive production can be supplied. Appropriately the longitudinal edges of the hard layers 41.3, 42.3 remain as far from the walls 371, 372 spaced that in the area of the obtuse-angled fillets or the articulations at Spreading creates a particularly pronounced hindering material compression.

A sealing profile 10 according to FIG. 3 is particularly suitable for use in wooden windows. The sealing section 12 has a hollow profile 15. This is from one section 16 of the profile back 13, a contact wall 17 and a top wall 18 and one bottom wall 19 formed. The walls 18, 19 connect the section 16 to the contact wall 17, so that a cavity 20 is formed which is enclosed on all sides.

The holding section 11 has at least one holding means 21. This includes a retaining lip 22 in the form of a web part 240 protruding from a foot wall 373 at the lower end of the holding section 11. The web part 240 protrudes away from the profile back 13 and is slightly inclined directed towards the foot-side wall 19. The between the profile back 13 and the retaining lip 22 included angle is less than 90 °, so that the retaining lip 22nd when inserted into the profile receptacle 14 inevitably in the direction of the profile back 13 folds. The holding lip 22 in combination with a coating described below 56 acts in the profile receptacle 14 as a kind of barb to prevent the unwanted Loosening or slipping out of the sealing profile 10 from the profile receptacle 14.

The bottom wall 19 of the hollow profile 15 on the foot side is almost vertical to the profile back 13 arranged and has a width which is greater than the width of a groove 23 of the profile receptacle 14 is. The lower wall 19 covers the groove 23 in the assembled state and closes this off. At a free end of the lower wall 19, this has an education 54, z. B. a chamfer, throat or the like, which forms a sharp seal between the lower Wall 19 and a side wall 55 of the groove 23 guaranteed. In the unstressed, not shown State is the profile back 13 in the area of the unmounted wall 19 to the inside directed. The back section of the holding part 11 is expediently lighter toward the foot side Sloping slightly outward. 3 is in the assembled state Back section of the holding section 11 is flush with the upper section of the profile back 13 arranged. The voltage generated by this ensures additional secure hold in the groove 23.

The contact wall 17 is slightly V-shaped and points upwards from the profile back 13 away. The V shape is through a lower leg 24 and an upper leg 25 formed. The upper leg 25 is designed as a sealing lip 26, and adjoins it the upper wall 18 as a connection to the profile back 13. Part of the top wall 18 is arched outwards so that they inevitably compress outwards from the cavity 20 is pressed away. A miter cut is required to bend the profile can therefore be placed in the ideal position, namely far above in the area of the upper wall 18. In A transition region 27 between the profile back 13 and the upper wall 18 is this reinforced with a hard insert 32 in the form of a soul. The material thickening causes Sufficient stability, particularly in the area of deflections in window or door frames of the sealing profile 10, and it ensures optimal corner filling in particular when a miter cut is made in the ideal position.

According to the invention, the seal 10 according to FIG. 3 has a seal that is continuous over the length of the seal strip-like and plate-like hard layer 56 on the lower surface of the web part 240 fitted. This forms a one-armed leg that can be pivoted at the lower end 36 of the profile back 13 or the foot wall 373 is articulated and in particular when spreading with its material-free inner throat can be swiveled into material-free space 211. By doing The hinge layer 56 is not provided for a joint-like transition region 130, in order to provide a special to obtain pronounced directional and clamping characteristics, as described for FIGS. 1 and 2 has been. The material region articulating the web part 240 becomes particularly advantageous 57 formed from a material which is softer than that provided with the web hard layer 56 Material is.

The hard layer 56 forms an exposed sliding surface on the lower surface of the foot, which during Impact or in spreading system on the groove wall 55 the insertion process much easier. In the unmounted state, the foot dimension of the web 240 is larger than the width of the groove 23. With a width of the groove 23 of 5 mm, the foot dimension of the web is 240, for example 5.5 mm. When seated in the groove 23, the clamping effect occurs, to which the transverse or hard layer 56, which acts as a pressure rod in the groove width, makes a significant contribution.

The holding lip 22 according to FIG. 3 has an incision 48 at its free end, whereby two holding tips 49, 50 are formed, which diverge from one another in a V-shape. The bottom tip 50 is shorter than the top tip 49. Peaks of different lengths especially for wooden frames, while the tips are mostly for metal frames be trained about the same length. With smooth surfaces, the V-shape creates the Tips a kind of suction cup. The hard layer 56 extends into the longitudinal edge of the lower one Tip 50. As a result, the sliding, clamping and from the achieved Swivel direction dependent joint effects favored. The are particularly advantageous free, in seated contact with the receptacle 14 ends of the retaining lips 22 from one Formed material that is softer than the material provided with the web hard layer.

3, the profile back 13 has a back coating 31, which expediently Polyolefins is formed. The coating 31 extends with the exception of one area at the head end 35 over the entire profile back 13 on the side facing away from the sealing side over the length of the profile 10. The coating 31 expediently extends to the foot end 36 of the sealing profile 10. As a result, the coating 31 acts when the Profile 10 in the groove 23 as a sliding aid. The coating 31 is very like the hard layer 56 thin, so that it is not a wall but one in relation to the thickness of the one supporting it Back wall even forms an extremely thin layer.

In the example according to FIG. 3, the seal 10 comprises three souls which are continuous over the profile length 32, 33, 34, which are formed thread-free from polyolefins and together with the thin Coating 31 are extruded. The souls form additional on the sealing head and back so-called stretch brakes. The core 32 is at the upper head end 35 of the profile back 13 arranged in the region of the upper wall 18. The soul 34 is located at the bottom of the foot 36 in the area of the articulated retaining web 240. The core 33 is approximately in the middle of the profile back 13 arranged in the region of the lower wall 19. The souls 32, 33, 34 can have overall stability increase the seal 10, while with the hard layer 56 according to the invention not only a stiffening preventing material stretching on the lower surface of the web part 240 is formed, but an element with the described variety of functions and Advantages are provided.

3 can be made of three different materials Hardness exist. For example, the wall 18, the webs 24 and 25 and the free protruding End of the wall 19 made of thermoplastic elastomer (TPE) with 30 ° to 60 ° Shore A hardness manufactured. The rest of the material can be made of TPE with a Shore A hardness of 60 ° to 95 °, with the exception of the hard layers, which are made of polyethylene. That's just how they are Parts 100 of the sealing profile 10, which in the inserted into the receptacle 14 Sealing profile 10 are visible, made of functional / visible material with a Shore A hardness of 30 ° to 60 °, while the carrier material of the seal 10 has only 60 ° to 95 ° Shore A hardness. This Material arrangement and distribution, which in particular allows cost-effective production, is significantly favored by the hard foot layer according to the invention.

4, a sealing profile 10 is shown with a back 13, the 36 at the lower end the holding foot 37.3 as the profile 10 is formed in Fig. 3. However, the hard layer 56 extends somewhat further into the area of the foot end 36. In addition, is above the lower web retaining lip 22.11 a further corresponding web part holding lip 22.12 is provided, which also is accordingly provided with an exposed sliding hard layer 56.1. So far it is a double training, as it is based on the profile 10 with lips 22.5, 22.7 in Fig. 2 has been described.

5 has a void-free arrow foot 37.2, the lower surfaces of which are provided with the hard layers 41.1 and 42.1. The holding section 11 is a double arrow profile foot with an additional pair of lips 22.3, 22.4 on the foot stem 110 executed. These lips are also useful with the hard sliding layers shown in dashed lines 41.2 and 42.2 provided on their undersides. In particular in such an embodiment is, as is also particularly pronounced in the seals 10 according to FIGS. 1 and 2, the head-side sealing section 12 in the longitudinal direction of the profile is much more extensible than the foot underside of the holding section 11 with the respective hard layer 22. This leads in combination with the transverse position of the hard layer 41, 42 on the head side to a compulsive convex Curvature of the profile strand in the longitudinal direction, which results in the insertion of the sealing profile additionally relieving snap locking arises. In this respect it can also be useful 5, for example, as shown in FIG. 5, a preferably wafer-thin, but hard coating 41.1, 42.1 on the underside of the holding foot 37.2 continuously, that is also in Vertex area 53 to be provided. Despite the elasticity of curvature in the apex region 53 remains maintain the transverse compressive rigidity on the undersides of the legs, so that according to the invention in the compression zone 230 arises in the transition region 53 of the legs 241.

In the exemplary embodiment in FIG. 6, the holding means 21 is on the one in the sealing section 12 opposite side of the profile back 13 is arranged. In the transition area between a material reinforcement 61 is provided for the holding means 21 and the profile back 13. Within this is between the holding section 11 and the sealing section 12 introduced an insert 62, which contributes to increasing the dimensional stability, also in Combination with an arrow foot 37.2, as has been described with reference to FIG. 5.

6, the free ends of the legs 241 of the web part 240 extend in the transverse direction significantly longer than the hard layers 41, 42. The tips of the holding lips 22.5, 22.6 also free on the lower surface of the foot, which means that additional, by the hard layers 41, 42 affected areas of adhesion and compression of the softer Web part material are formed.

Just as with the seal 10 according to FIG. 3, it is expedient also the seals 10 of the to form other embodiments from the three material parts. The functional / visible material forming parts are provided with the reference number 100.

In all of the exemplary embodiments, the hard sliding layers 41, 42, 56 are expedient and advantageously relatively thin in relation to the thickness of the web parts or legs 240, 241. There the hard layers 41, 42, 56 according to the invention are not part of the essential supporting function for the gasket 10 are wall material, they are useful formed thinner, the larger its area. In this respect it is essential that the web hard layers 41, 42, 56 are not wall parts supporting the supporting structure of the seal 10, but can only be seen as co-extruded thin layers that act as stretching brakes and act as material-compressing elements against tension spreading.

Technically, the web parts 240, 241 are made of a soft mass for the rubber-like Lip material and a hard mass for the hard and sliding coating at the same time extruded in strand form. In a way you get an integrated hard coating that one can also understand it as a free insert on the surface. This coating or insert acts like a strip-like hard plating or platelet-like layer on the underside of the foot the seal 10 is limited in area. Even with the smallest layer thicknesses the described effects and functions are distinctly achieved. To that extent is also from Advantage that, in contrast to conventional sealing profiles due to the coating, which is possible with inexpensive material, also the material thickness of the invention Sealing profiles can be chosen significantly lower, which is too considerable Savings in the use of materials.

These are preferred for producing the seals or sealing profiles according to the invention produced by a co-extrusion process in a single operation. At a sealing profile from, for example, those described in connection with FIG. 3 three material components, a first extruder donates the TPE with e.g. 80 ° Shore A hardness for the carrier material. A second extruder donates TPE with e.g. 60 ° Shore A hardness for the the parts taking over the glare or sealing function. A third extruder produces the flat polyethylene strands for hard layers, inlays and / or coatings. Possibly a further extruder is provided for the softer material areas described for FIG. 3 to produce on the longitudinal web ends (parts 57 or 48 and 49). Man receives ready-to-assemble profiles in a single operation, avoiding Foreign bodies in the profile material and especially without thread inserts and without conventional lubricants are manufactured or assembled. The hard layer is targeted as well as locally and partially applied exactly where it is needed. With not only the seals shown can be produced using the described method. It can sealing profiles with inlays, hard layers and / or coatings, too in sections, as well as sealing profiles as rebate seals, frame impact seals or the like can be produced.

Claims (22)

Sealing profile (10), in particular for windows, doors and the like, comprising a foot-side holding section (11) with at least one holding means (21) provided for engaging in a receptacle (14) and a head-side sealing section (12), the holding section (11) and the sealing section (12) is connected to one another and the holding means (21) is formed by a leg-like web part (240) which has a projecting holding lip (22) and which is articulated on a foot stem (110) which extends longitudinally with the sealing profile (10) ) of the holding section (11) forming the wall (371 to 375) and when spreading apart as a result of being inserted into the receptacle (14) it is evasive against elastic restoring force, characterized in that the web part (240) in the region of its associated receptacle (14) Side with at least one in the longitudinal direction and transverse to the direction of insertion (D) of the sealing profile (10), ei A sliding insert of the web part (240) into the layer (41, 42, 56) supporting the receptacle (14) is made of a material that is harder than the material of the web part (240) provided with the layer (41, 42, 56). the web part (240) in the head-side contact area of the projecting retaining lip (22) with the receptacle (14) being free of the hard layer (41, 42, 56) and the hard layer (41, 42, 56) acting as a rigid swivel element, which causes at least one zone (230) of the softer material of the web part (240) to make the spreading of the web part (240) more difficult. Sealing profile according to claim 1, characterized in that the hard layer (41, 42, 56) is exposed on the lower surface of the holding foot with a sliding surface. Sealing profile according to claim 1 or 2, characterized in that the web part (240) comprises at least one leg part (241) articulated on a respective associated profile wall (371 to 375) and provided with the hard layer (41, 42, 56), with which it for spreading and spreading in material-free space (210, 211) is movable. Sealing profile according to one of claims 1 to 3, characterized in that the web part (240) is formed by a holding foot (37) which is arrow-shaped in profile and which is arranged in a V-shape and is articulated to a respective associated profile wall (371, 372) with the hard layer (41, 42) provided leg parts (241) which adjoin one another under the action of spreading force in the region of the arrow-shaped apex (53) to form the compression zone (230) in the softer web material. Sealing profile according to claim 4, characterized in that the arrow-shaped holding foot (37) is a hollow chamber foot, in the hollow chamber area of which the leg parts (241) can be moved under the effect of an expanding force. Sealing profile according to claim 4 or 5, characterized in that the foot surface of the holding foot (37) in the region of the arrow-shaped apex (53) is free of the hard layer (41, 42). Sealing profile according to one of claims 1 to 6, characterized in that the sealing profile (10) has at least one wall (371, 372) articulating an associated holding web part (241) which, viewed in the cross section of the foot profile, essentially in the central region (370) of the hard layer (41, 42) formed on the web part (241) is connected to it via the softer web part material carrying it. Sealing profile according to one of Claims 1 to 3, characterized in that the holding section (11) and the sealing section (12) are connected to one another via a profile back (13), the profile back (13) preferably having a back layer (to the foot end) ( 31) is provided, which is harder than the backing material of the seal (10) provided with the backing layer (31). Sealing profile according to claim 8, characterized in that the transition area between the underside of the web part (240) and the profile back (13) is free of the web part hard layer (56). Sealing profile according to one of claims 1 to 9, characterized in that on at least one wall (371 to 375) engaging in an associated profile receptacle (14) has retaining lips (22), each with the hard layer (41, 42) provided with web parts (22.7 to 22.9) are formed in a conductor arrangement. Sealing profile according to claim 10, characterized in that the web parts (22.6 to 22.8) are arranged in a V-shaped orientation. Sealing profile according to one of claims 1 to 11, characterized in that the free lateral end of the web part (240) forming the retaining lip (22) is free of the hard layer (41, 42, 56). Sealing profile according to one of Claims 1 to 12, characterized in that the material region (57) which articulates the web part (240) is formed from a material which is softer than the material provided with the web hard layer (41, 42, 56). Sealing profile according to one of claims 1 to 13, characterized in that the free ends of the retaining lips (22) which come into seating contact with the profile receptacle (14) are formed from a material which is softer than that provided with the rigid web layer (56) Material is. Sealing profile according to one of claims 1 to 14, characterized in that the holding lip (22), viewed in the profile cross section, is provided with at least two holding tips (49, 50) which come into contact with an associated receiving wall (55), a lower holding tip ( 50) has the hard layer (56) of the web part (240) and preferably springs back in the untensioned state with respect to an overlying holding tip (49). Sealing profile according to one of claims 1 to 15, characterized in that the hard layer (41, 42, 56) is a plate-like layer which is thin in relation to the profile thickness of the web part (240) provided with the hard layer. Sealing profile according to one of Claims 1 to 16, characterized in that the hard layer (41, 42, 56) is an insert which is exposed on the surface and is introduced into the softer material of the web part (240). Sealing profile according to one of claims 1 to 17, characterized in that the hard layer (41, 42, 56) is a polyolefin and preferably polyethylene and the softer parts of the seal (10) are formed from thermoplastic elastomers (TPE). Sealing profile according to one of claims 1 to 18, characterized in that the sealing profile (19) is formed from three material parts, namely a carrier material, a sealing functional and visible material (100) and a layer material, the functional material being softer than the carrier material and the backing material is softer than the layer material and preferably the functional / visible material made of thermoplastic elastomers (TPE) with 30 ° to 60 ° Shore-A hardness and the backing material made of thermoplastic elastomers (TPE) with 60 ° to 95 ° Shore-A -Hardness is formed. Sealing profile according to claim 19, characterized in that the web hard layer (41, 42, 56) and optionally a back layer (31) consist of the layer material. Sealing profile according to claim 20, characterized in that the parts of the sealing profile (10) which are not visible on the sealing profile (10) inserted in a receptacle (14), but with the exception of each hard layer (41, 42, 56; 31) and optionally with the exception of the longitudinal end regions (57; 49, 50) of the web part (240), consist of the carrier material. Sealing profile according to one of claims 17 to 21, characterized in that the parts of the sealing profile (10) which are visible in the sealing profile (10) inserted into a receptacle (14) consist of functional / visible material.

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