EP0877142A2 - Rabbet sealing strip for windows, doors or the like - Google Patents

Abstract

The sealing strip is extruded in one process using an elastic material for the main support and a foam material for the seal. The strip has a backing (120) of elastic material and with shaped grip lips (11,12) at the bottom. The top section holds the hollow profile foam strip which is clad in an outer coating of elastic material. The foam and the hollow space have a large compression facility to cover the sealing gaps. The lower part of the foam is attached to the support strip by a section (25) which thickens towards the support strip. The support strip has a bump strop strip (221) on the inside of the hollow space. Both materials are extruded together.

Description

The present invention relates to a strand-shaped wing rebate / rollover seal for windows, doors or the like, having a holding section on the foot side at least one retaining lip for anchoring the sash rebate / overlap seal in a retaining groove and a sealing section on the head side, which over a profile back connects the holding section and one opposite the profile back Contact wall, one on the side facing away from the holding section of the Sealing section located, connecting the profile back and the contact wall head-side connecting wall and one facing the holding section Side of the sealing section, the profile back and the contact wall has connecting foot-side connecting wall, at least one closed Hollow profile through a section of the profile back, through the head Connecting wall, through the contact wall and through the foot-side connecting wall is limited.

With such sash rebate / rollover seals, which are often used to seal a Window sash against a window frame or for sealing a door leaf used against a door frame has always been an essential one Problem in that such sash rebate / overlap seals over time are subject to certain phenomena of material fatigue. Depending on the selected application areas can be such sash rebate / rollover seals significant climatic fluctuations, such as large temperature differences, subject to what has so far resulted in that for the sash rebate / rollover seals used material tired over time and therefore the properties required for proper sealing function. This highly unpleasant phenomena were also encountered under normal ones Conditions of use, for example when using sash rebate / overlap seals inside a constantly heated building.

Regardless of the question of material fatigue discussed above, the in Solid materials used in the past for sash rebate / overlap seals also with regard to the function of the thermal insulation and the function of the Soundproofing left a lot to be desired. One of the reasons for this was that the Resilience or torsion properties of the solid materials used are not as good were that it was always fully guaranteed that the sash rebate / rollover seal even after intensive and / or sudden stress for example as a result of increased closing pressure with subsequent relaxation returned to its original shape. Consistency and stability of the Operation of the sash rebate / rollover seal according to the prior art were therefore in danger.

Especially when the solid material of the sash rebate / overlap seal has aged were therefore for a proper sealing function of the sash rebate / rollover seal extremely relevant reset and torsion properties everything unsatisfactory in everything that could result, for example, in a reliable and dimensionally stable fastening of the sash rebate / rollover seal not was more guaranteed. This often had a partial replacement of the Sash rebate / rollover seal from a retaining groove, so that the sash rebate / rollover seal could no longer fulfill its sealing or protective function and there was an undesirable entry of wind, dirt, water or the like.

Furthermore, it proved to be the case with the sash rebate / rollover seal known from the prior art as extremely disadvantageous that evenly thin Wall thicknesses could not be realized practically. This aspect is straight given increased efforts to save material from significant importance. In this context it should also be borne in mind that the Increasing range of applications for sash rebate / overlap seals becomes more selective and diverse, so that precisely the point of view of choosing the Wall thickness plays an increasingly important role.

The present invention is based on the aforementioned shortcomings the task is to provide a sash rebate / rollover seal that both under normal conditions of use as well as with increased stress as a result Increased closing pressure revealed optimal reset or torsion properties.

In this context, the present invention additionally seeks the properties of the sash rebate / rollover seal both with regard to the Function of thermal insulation as well as with regard to the function of sound insulation to improve.

The present invention further aims to provide sash rebate / rollover seals to provide, whose materials even with longstanding If possible, stress is not subject to any signs of fatigue. This is also used for extreme climatic conditions, such as large ones Temperature differences, aimed for.

The present invention is also based on the object of a sash rebate / rollover seal to provide the continuous and resource-saving can be produced and further processed.

Finally, the present invention is becoming more and more important Environmental efforts in this context also include a Sash rebate / rollover seal to the target, which is easily and completely recyclable, the latter aspect, especially with regard to the inevitable accruing production waste should be fed to a solution.

According to the invention, these tasks are achieved by a strand-shaped sash rebate / rollover seal with the features of the preamble of protection claim 1 solved, in which the profile back is made of solid material and with the foamed material existing sealing section is co-extruded.

The sash rebate / overlap seal according to the present invention is disclosed both under normal conditions of use and with increased stress optimal restoring or torsion properties due to increased closing pressure.

Here, both in terms of the function of the thermal insulation and With regard to the function of sound insulation by the above Sash rebate / rollover seal achieved an optimization.

The present invention further provides a sash rebate / overlap seal ready, with almost no wear even with long-term use Material fatigue. Contrary to expectations, it should be considerable climatic fluctuations, such as large temperature differences, yes If there is material fatigue, it will stick to the sash rebate / rollover seal according to the present invention within such narrow limits that the proper sealing and protective function of the sash rebate / roll-over seal practically not due to their always excellent elastic properties is affected.

The fact that with regard to the process ecology in the manufacture of sash rebate / overlap seals produced no environmentally harmful by-products according to the present invention apart from one that is inevitable in technical practice Minimal pollutant emissions practically do not result in air pollution.

In connection with these increasingly important efforts on the In the field of environmental protection, it is therefore extremely that the sash rebate seal according to the present invention is simple and is completely recyclable. This is especially true for those in manufacturing and Further processing inevitably produces waste, which is natural also makes a positive impact on the cost of materials and disposal.

Furthermore, the present invention does not only allow continuous Manufacturing process and a further processing of the sash rebate / rollover seal in a particularly resource-saving manner; rather it has as a particularly surprising and for those familiar with the prior art In no way predictable feature of the present invention emphasized that the material properties of the Sash rebate / rollover seal controlled and selective in an excellent way can be adjusted. Examples are the setting of such more important List material parameters such as density and / or hardness. The Interestingly, process parameters are only based on foaming aligned, not for vulcanization.

Finally, those skilled in the art will appreciate the present invention know that the profile design of the sash rebate / overlap seals according to the present invention optionally using data processing means can be optimized, resulting in a high Production flexibility is guaranteed.

It goes without saying that all of the aforementioned aspects of both Manufacturing depth as well as the width of the product range of sash rebate / overlap seals according to the present invention, especially since Technology of foaming a much larger selection of usable Allows materials. In connection with this, it is used by the expert For example, it can also be recognized that in the present invention, about one thermoplastic corner gating is possible; just the aspect of corner gating provided the specialist in connection with sash rebate / overlap seals in the past it was sometimes very difficult to solve Problems.

If the sash rebate / rollover seal according to the present invention in are designed in a particularly inventive manner, is one embodiment preferred, in which the wall thickness of the foot-side connecting wall towards Profile back increases. This can prevent dirt, water or the like between the edge of the retaining groove at which the free end of the retaining lip (s) is present, and the sealing section of the sash rebate / rollover seal reliably should be avoided, whereby it should be noted that the holding groove is generally of Contamination of any kind is to be kept in order to function properly to ensure the sash rebate / overlap seal.

This is the case with the sash rebate / rollover seals known from the prior art in addition to the at least one retaining lip, not seldom another additional lip provided that the transition area of the Haltutrandes covers. In this context, however, problems arise insofar as straight this cover lip with frequent and / or heavy use of the sash rebate / overlap seal, for example with increased closing pressure, no longer in their intended position to cover the Haltutrandes remains, but is deformed so that it can no longer develop its effect, which in In extreme cases, the sash rebate / rollover seal only functions to a limited extent leads. Unwanted faults or a detachment of the The holding section from the holding groove can then often no longer be avoided.

By the preferred technical measure that the wall thickness of the foot Connecting wall increases towards the back of the profile, becomes effective Way ensures that the foot-side connecting wall in any case in their Transition area to the profile back or also in its transition area to System wall when the sash rebate / overlap seal is anchored in the retaining groove and keeps the transition area of the retaining edge stable in shape.

In this context, the person skilled in the art will consider it an option essential to the invention appreciate that the sealing section of the sash rebate / rollover seal further than the sash rebate / rollover seals known from the prior art can extend in the direction of the holding section, so that also in combination with the increasing wall thickness a full and full surface The connection wall on the foot side at the stop edge is assured.

For this purpose, the connecting wall on the foot side points straight in the holding section facing transition area to the profile back one compared to the other Wall thickness on significant thickening, which the anchorage of the holding section in the Holding groove gives high strength and stability as well as a snug fit of the Sash rebate / overlap seal with optimal sealing effect guaranteed.

Although a convincing function of the object according to the present Invention by the design of the sash rebate / rollover seal and / or is guaranteed by the selected material, it proves itself in the Manufacture and processing as advantageous, although the holding section with the at least one retaining lip consists of solid material.

This solid material is preferably elastic and practical not foamed at least in sections and / or at least in places. Here Shore hardnesses are used for the solid material in operational practice range from about Shore-A-60 to about Shore-A-80 and preferably on the order of about Shore-A-70.

If you also want the present sash rebate / rollover seal in particular educate inventive way, it is recommended that the head Connecting wall, the system wall and / or the foot-side connecting wall to form foamed material.

The use of foamed material for the head-side connecting wall, for the system wall and / or for the foot-side connecting wall offers both under normal conditions of use as well as due to increased stress Increased closing pressure optimal reset or torsion properties. Of further is both in terms of the function of the thermal insulation and in With regard to the function of sound insulation through the use of foamed Optimized material.

To the foamed material with effective protection against contamination to provide any type, according to a particularly essential to the invention Development of the present invention, the head-side connecting wall Contact wall and / or the foot-side connecting wall at least in sections and / or at least in places on an outer wall made of solid material type described above. This outer wall is what its thickness and its As far as application is concerned, at least in sections and / or at least in places in Formed an outer skin and can depend on the intended application be interrupted at least in sections and / or at least in places.

In particular in the corner and / or in the edge areas, the outer wall can according to an advantageous embodiment variant of the present invention at least in sections and / or at least in places in the form of a reinforcement, preferably in the form of a reinforcement wall and / or in the form of a Reinforcing strand, be formed.

With regard to the material used, a practical embodiment will turn out to be prove to be advantageous in which the solid material at least in sections and / or is at least in places considerably harder than the foamed material. Here are according to a particularly inventive further development, those consisting of solid material Parts of the sash rebate / roll-over seal with those made of foamed material existing parts of the sash rebate / rollover seal connected by coextrusion.

For better, more permanent and more stable anchoring of the holding section in the To ensure a retaining groove, the retaining lip is preferred Embodiment of the present invention towards its free end Sealing section inclined. As a result, the retaining lip can be seen in the Claw the walls of the holding groove.

Here are the practical implementation of the sash rebate / rollover seal according to the present invention advantageously two retaining lips are provided, which increases the likelihood of the holding portion coming out of the Retaining groove is significantly reduced because even in the practically non-occurring In the event of failure of the holding action of one of the holding lips, the other still holds Effect.

An unexpectedly strong anchoring of the sash rebate / rollover seal according to the present invention in the retaining groove can be achieved in that the two Retaining lips have a different length. In this way, on the one hand Bumps and unevenness, for example, with regard to the width and the same holding groove can be compensated for, on the other hand, this gives flexibility in relation to the possible uses of the sash rebate / rollover seal increased than these designed for holding grooves of different widths and shapes and can be used.

Here, an embodiment has proven itself in which the sealing section continues remotely located retaining lip shorter than that closer to the sealing portion Holding lip is, with the lengths advantageously differing in one Order of magnitude moves, in which one of the retaining lips by about 0.1 millimeters to about 0.3 millimeters, preferably about 0.2 millimeters, is shorter than the other one Holding lips.

According to a particularly advantageous embodiment of the present invention the profile back extends approximately straight from the foot side Holding section over the head-side sealing section, so that a full and full The back of the profile is guaranteed on the part to be sealed.

To have a special stabilizing effect with regard to the anchoring of the To achieve holding section in the holding groove, the profile back has in the area of Holding section preferably a greater thickness than in the region of the sealing section on.

In this context or independently of this, a Embodiment prove to be useful in which the profile back in Transition area from the holding section to the sealing section towards a tapering Form that has to a certain extent the widening of the foot Can pick up and compensate the connecting wall to the profile back.

According to a preferred development of the present invention, at least a hollow profile in its interior at least one damping element that especially in the event of a violent closing pressure, i.e. a large one Force on the system wall and therefore also on the head side Connecting wall as well as striking the connecting wall on the foot side Contact wall on the back of the profile insofar as it prevents the movement of the contact wall dampens or cushions. This causes excessive mechanical stress the components of the sealing portion prevented in a reliable manner, whereby it to meet the above-mentioned damping or cushioning effect as appropriate proves to arrange the damping element on the profile back.

In order to the damping element further to fulfill the aforementioned damping or. Cushioning to give desirable mechanical strength, there is the damping element advantageously made of non-foamed solid material.

Regardless of whether a rather weak or a strong closing pressure on the Sealing section of the sash rebate / rollover seal is turned out to be '' Starting position '' for the sealing section an arrangement as recommended, in which the profile back and the contact wall in the relaxed state slightly inclined to each other stand. This allows different types of stress constellations in be compensated in an elegant and flexible manner.

This also applies to a preferred embodiment of the present invention, in which the head-side connecting wall is V-shaped, the tip of the V-shape the head-side connecting wall expediently into the interior of the hollow profile points. As a result, when the sealing section is compressed as a result of the If there is a closing pressure, a concertina effect, so to speak caused, whereby the force introduced is adequately absorbed can be. Furthermore, it is also used to absorb the force introduced Available path enlarged.

As already stated at the outset, the present invention relates to their flexibility is characterized, among other things, by the fact that they have one or more hollow profiles having. According to a preferred embodiment, a hollow profile is in the Provided frame of the sealing section, so the system wall can be relaxed Condition in the transition area to the head-side connecting wall slightly outwards be arched.

The damping element is then independent of this or in connection with it advantageously arranged approximately in the middle of the profile back, which ensures optimal Damping or cushioning even under extreme stress on the sealing section is ensured.

According to a preferred embodiment, two hollow profiles are now in the frame provided of the sealing section, so the contact wall in the relaxed state easily be arched inwards.

To divide the sealing section into the two hollow profiles runs according to one particularly inventive training between the profile back and the Contact wall a web through which the sealing section also has excellent stability is given very heavy use. Such an increase in stability plays a role as an option essential to the invention, especially if the Sealing section of the sash rebate / rollover seal in the context of the solution according to the present invention extends relatively far in the direction of the holding portion, so that also in combination with the increasing wall thickness a rich and Full-surface contact of the connecting wall on the foot side at the retaining edge is guaranteed is.

Here, the web can develop its stabilizing effect in particular when he connects the back of the profile with the contact wall approximately in the center, because then a particularly uniform application of force and distribution of force can be achieved. To For this purpose, an embodiment can also be preferred in which the web is below an inclination runs from the profile back to the contact wall, the web then from Profile back to the contact wall advantageously runs in a direction that is inclined away from the holding section.

The manufacture of the has proven to be particularly free of complications Sash rebate / overlap seal according to the present invention when the The web expediently has a thickness which is approximately the thickness of the head-side Connecting wall or approximately corresponds to the thickness of the contact wall, and / or if the bridge is made of foamed material.

Finally, with regard to the embodiment with two hollow profiles on one advantageous embodiment pointed out, in which the holding section closer located hollow profile smaller than that located further away from the holding section Is hollow profile. Regardless of this or in addition to this, this can Damping element inside that further away from the holding section Be arranged hollow profile.

Further refinements, features and advantages of the present invention Below using the example illustrated in Figures 1 to 3 Exemplary embodiments explained in more detail.

Figur 1

eine (stark vergrößert dargestellte) Ouerschnittsansicht eines ersten Ausführungsbeispiels einer strangförmigen Flügelfalz-/Überschlagdichtung gemäß der vorliegenden Erfindung im entspannten Zustand;

Figur 2:

eine (stark vergrößert dargestellte) Ouerschnittsansicht eines zweiten Ausführungsbeispiels einer strangförmigen Flügelfalz-/Überschlagdichtung gemäß der vorliegenden Erfindung im entspannten Zustand; und

Figur 3:

eine Einbausituation der beiden in den Figuren 1 und 2 dargestellten Ausführungsbeispiele von strangförmigen Flügelfalz-/Überschlagdichtungen gemäß der vorliegenden Erfindung.

It shows:

Figure 1

a (greatly enlarged) cross-sectional view of a first embodiment of a strand-shaped sash rebate / rollover seal according to the present invention in the relaxed state;

Figure 2:

a (greatly enlarged) cross-sectional view of a second embodiment of a strand-shaped sash rebate / rollover seal according to the present invention in the relaxed state; and

Figure 3:

an installation situation of the two embodiments of strand-shaped sash rebate / rollover seals shown in Figures 1 and 2 according to the present invention.

The same or similar parts are in Figures 1 and 2 with the same reference numerals Mistake.

In Figure 1 is a (greatly enlarged) cross-sectional view of a first Embodiment of a strand-shaped sash rebate / rollover seal for Windows, doors or the like shown in the relaxed state.

This strand-shaped sash rebate / rollover seal has a foot-side Holding section 1 with two holding lips 11, 12 for anchoring the sash rebate / rollover seal in a holding groove, with the holding lips 11, 12 in the direction their free end are inclined towards the sealing section 2 and in this respect one have different lengths than that further away from the sealing section 2 arranged holding lip 11 by about 0.2 millimeters shorter than that of the sealing section 2 closer lip 12 is.

The holding section 1 with the two holding lips 11, 12 consists of non-foamed Solid material with a Shore hardness of approximately Shore-A-70.

Furthermore, a head-side sealing section 2 is provided, which over a Profile back 120 connects to the foot-side holding section 1, the Profile back 120 approximately straight from the foot-side holding section 1 over the head-side sealing section 2 extends and in the region of the holding section 1 has a greater thickness than in the area of the sealing section 2, so that the profile back 120 in the transition area from the holding section 1 to the sealing section 2 has a tapered shape.

The sealing section 2 is here made of a profile 120 opposite the back Contact wall 24, from one on the side facing away from the holding section 1 Sealing section 2 located, the profile back 120 and the contact wall 24th connecting head-side connecting wall 23 with a V-shaped shape and from a on the side of the sealing section 2 facing the holding section 1 located, connecting the profile back 120 and the contact wall 24 on the foot side Connecting wall 25 formed, a closed hollow profile 22 by a Section of the profile back 120, through the head-side connecting wall 23, through the contact wall 24 and the foot-side connecting wall 25 is limited.

The tip of the V-shape of the head-side connecting wall 23 points to the inside of the Hollow section 22.

The profile back 120 and the contact wall 24 stand slightly in the relaxed state inclined to each other, the contact wall 24 in the relaxed state in Transition area to the head-side connecting wall 23 is slightly curved outwards.

In the interior of the hollow profile 22, a damping element 221 is provided, which approximately is arranged centrally on the profile back 120 and made of non-foamed solid material consists. This damping element 221 prevents in particular in the event of a violent closing pressure, that is, a large force on the system wall 24 and thus also on the head-side connecting wall 23 and on the foot-side Connecting wall 25 insofar as the abutment wall 24 strikes the back of the profile 120 when it dampens or cushions the movement of the contact wall 24. This will excessive mechanical stress on the components of the sealing section 2 in prevents the closing situation, as is the case, for example, from that in FIG. 3 Installation situation shown of the first embodiment shown in Figure 1 (in 3 to the left) and the second shown in Figure 2 Embodiment (to the right in Figure 3) emerges.

While the profile back 120 is made of solid material, the top side is made of Connecting wall 23, the contact wall 24 and the foot-side connecting wall 25 foamed material, the head-side connecting wall 23, the contact wall 24 and the foot-side connecting wall 25 an outer wall 231, 241, 251 in the form of a Have outer skin, which consists of solid material that is much harder than that is foamed material. In this context it should be noted that the out Solid material existing parts 1, 11, 12, 120, 231, 241, 251 of the first Embodiment of the sash rebate / rollover seal with the foamed Material existing parts 23, 24, 25 of the first embodiment of the Sash rebate / rollover seal are connected by coextrusion.

As can be seen from Figure 1, the wall thickness of the foot-side connecting wall increases 25 towards the profile back 120. This ensures that the foot-side connecting wall 25 in any case in its transition area to Profile back 120 or in its transition area to the contact wall 24 Anchoring the sash rebate / rollover seal in the retaining groove firmly and dimensionally stable covers the transition area of the Haltutrandes. Here, the Sealing section 2 of the sash rebate / rollover seal relatively far in the direction of Holding section 1, so that in combination with the increasing effect Wall thickness a full and full area of the foot-side connecting wall 25th is guaranteed at the stop.

In Figure 2 is a (greatly enlarged) cross-sectional view of a second Embodiment of a strand-shaped sash rebate / rollover seal for Windows, doors or the like shown in the relaxed state. To avoid unnecessary repetitions are set out below only the characteristics by which the second exemplary embodiment shown in FIG. 2 differs from that shown in FIG first embodiment differs.

Thus, the sealing section 2 has two hollow profiles 21, 22, the Holding section 1 closer hollow section 21 than that of holding section 1 hollow profile 22 located further away. Inside the latter is hollow profile 22 a damping element 221 arranged, its function and mode of operation has already been explained above with reference to FIG. 1.

Between the profile back 120 and the slightly inward in the relaxed state Arched contact wall 24 runs a web 26 through which the sealing section 2 in two hollow profiles 21, 22 is divided, the web 26 with the profile back 120 the contact wall 24 connects approximately centrally and under such Inclination from the profile back 120 to the contact wall 24 extends that the web 26 from Profile back 120 runs towards the contact wall 24 in a direction from Holding section 1 is inclined away.

The web 26 has a thickness which is approximately the thickness of the head Connecting wall 23 or approximately corresponds to the thickness of the contact wall 24, and consists of foamed material.

Claims (10)

Strand-shaped sash rebate / overlap seal for windows, doors or the like, comprising: a. a foot-side holding section (1) with at least one holding lip (11, 12) for anchoring the sash rebate / roll-over seal in a holding groove and b. a head-side sealing section (2), which connects to the holding section (1) via a profile back (120) and a contact wall (24) opposite the profile back (120), one on the side of the sealing section (2) facing away from the holding section (1) located, the profile back (120) and the contact wall (24) connecting head-side connecting wall (23) and one on the side facing the holding section (1) of the sealing section (2), which connects the profile back (120) and the contact wall (24) has a connection wall (25) on the foot side, at least one closed hollow profile (21, 22) being delimited by a section of the profile back (120), by the connection wall on the head side (23), by the contact wall (24) and by the connection wall (25) on the foot side , characterized in that the profile back (120) consists of solid material and is coextruded with the sealing section (2) consisting of foamed material. Sash rebate / rollover seal according to claim 1, characterized in that the holding section (1) with the at least one holding lip (11, 12) Full material exists. Sash rebate / rollover seal according to claim 1 or 2, characterized characterized in that the head-side connecting wall (23), the contact wall (24) and / or the foot-side connecting wall (25) made of foamed Material. Sash rebate / rollover seal according to at least one of claims 1 to 3, characterized in that the head-side connecting wall (23), the Contact wall (24) and / or the foot-side connecting wall (25) at least in sections and / or at least in places an outer wall (231, 241, 251), which consists of solid material. Sash rebate / rollover seal according to at least one of claims 1 to 4, characterized in that the solid material at least in sections and / or is not foamed at least in places. Sash rebate / rollover seal according to at least one of claims 1 to 5, characterized in that the solid material at least in sections and / or at least in places considerably harder than the foamed material is. Sash rebate / rollover seal according to at least one of claims 1 to 6, characterized in that the parts (1, 11, 12, 120, 231, 241, 251) of the sash rebate / roll-over seal with the foamed material existing parts (23, 24, 25) of the sash rebate / roll-over seal are connected by coextrusion. Sash rebate / rollover seal according to at least one of claims 1 to 7, characterized in that the solid material at least in sections and / or at least in places a Shore hardness of approximately Shore-A-60 to about Shore-A-80, preferably about Shore-A-70. Sash rebate / rollover seal according to at least one of claims 1 to 8, characterized in that at least one hollow profile (21, 22) in its Has at least one damping element (221) inside. Sash rebate / rollover seal according to claim 9, characterized in that the damping element (221) made of non-foamed solid material consists.

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