EP1118744A2 - Sealing strip for windows, doors or the like - Google Patents

Abstract

The extruded seal is formed from a first material (M1) and the contact bearing wall (24) has on its side remote from the closed hollow profiled section (21, 22) a second material (M2) in sections which has a lower coefficient of sliding friction than the first material. The first material can be co-extruded with the second material from plastics having different coefficients. The closed hollow profile can be divided by a web (26) into two chambers (21, 22) and the chamber closest to the retaining section (1) is larger than the chamber (22) further away from same.

Description

The present invention relates to a string seal for windows, doors or the like, having a foot-side holding section with at least one Retaining lip for anchoring the strand seal in a retaining groove and one head-side sealing section, which via a profile back to the holding section connects and a contact wall opposite the profile back, one on the side of the sealing section facing away from the holding section Back of the profile and the connecting wall connecting the head wall and a located on the side of the sealing section facing the holding section Back of the profile and the connecting wall on the foot side connecting the contact wall, through at least a portion of the profile back, through the head Connecting wall, through the contact wall and through the foot-side connecting wall at least one closed hollow profile is limited.

With such string seals, which are often used to seal a window sash against a window frame or to seal a door leaf against one Door frames are used, has always been an essential Problem in the one hand to give the sealing section a stability that the different areas of application of such string seals, and others to achieve the best possible seal through the sealing section. It should be taken into account here that strand seals of the aforementioned type are not in in rare cases a sudden and / or unexpectedly high closing pressure, For example, if a door is accidentally slammed, exposed Sealing section in known strand seals is often not designed so that it both under normal use and under extreme conditions ensures proper sealing of the parts to be sealed against each other.

In the case of known strand seals, the problem that closing occurs frequently of the window sash or door leaf provided with the string seal only under increased effort is possible and difficult to the extent that with the Window seal provided with window seal or the window seal provided with the window seal Door leaf immediately before completion of the closing process on the passed opposite parts of the window or door frame along becomes. Here occur between the side facing away from the closed hollow profile Contact wall of the strand seal and the correspondingly assigned parts of the window or door frame on significant frictional forces, especially then are significant when it comes to large windows or high doors, because in In these cases, the friction surface between the outside of the contact surface is also String seal and the parts of the window or door frame correspondingly large. Attempts to reduce friction by using silicone oil have not been made satisfactory because the silicone oil affects painted window frames. Even under From an environmental point of view, the use of silicone oil is problematic.

Based on the aforementioned shortcomings and disadvantages of the known String seals is the object of the present invention, a String seal to provide a comfortable and smooth closing of the Window sash or the door leaf allows with little effort. Furthermore The present invention aims to provide a strand seal in which a stable and reliable fastening in a retaining groove with excellent Sealing or protective function while avoiding the undesired entry of Dirt, water, wind or the like is guaranteed. Furthermore, the present invention has for its object to provide a strand seal, the can be produced and processed further continuously and in a way that conserves resources. Finally, the object of the present invention is an extrusion seal, the Sealing section itself in the closed state by an even application of force and is characterized by the same force distribution.

According to the invention, these tasks are performed by a strand seal with the features of the preamble of claim 1 solved, according to the teaching of Present invention, the strand seal essentially from a first material is formed and wherein the contact wall on its closed hollow profile side facing away at least in sections with a second material which has a lower coefficient of sliding friction than the first material. Here, the first material according to a particularly inventive development of the present strand seal can be co-extruded with the second material.

By placing the contact wall on its side facing away from the closed hollow profile at least in sections with a second material - to a certain extent in shape a sliding pad - which second material has a lower one Coefficient of sliding friction as the first material is surprising Way ensures that a closing of the preferably as strand-shaped Sash rebate formed strand seal according to the present invention provided window sash or door leaf is possible with little effort and also and especially in the area of the hinges which is not unproblematic in this regard is easy in that the one with the strand seal according to the present invention provided window sash or that with the string seal according to the present Invention provided door leaf immediately before completion of the closing process to the correspondingly opposite parts of the window or door frame gliding past smoothly. Here occur due to the arrangement of the second Material that has a low coefficient of sliding friction and consequently a high one Has sliding value, between the side facing away from the closed hollow profile Contact wall of the strand seal and the correspondingly assigned parts of the window or door frame, even with large windows or high doors significant frictional forces.

A particularly pleasant and smooth closing of the window sash or Door leaf with particularly little effort is given when the system wall according to a preferred embodiment of the present invention on its entire side facing away from the closed hollow profile with the second material is provided. This can cause friction between the closed hollow profile opposite side of the contact wall of the strand seal and the corresponding assigned parts of the window or door frame in an efficient manner be minimized.

As for the degree of friction between that facing away from the closed hollow profile Side of the contact wall of the strand seal and the correspondingly assigned parts of the Window or door frame only the surface of the outside of the System wall is decisive, it is sufficient according to an appropriate design of the present invention, if a thin layer of the second material on the from closed hollow profile side of the contact wall is arranged. In this is preferably on the side facing away from the closed hollow profile layer of the second material arranged uniformly thin on the contact wall.

By the head-side connecting wall in an advantageous embodiment is domed inside, when compressing the sealing portion due to 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.

According to a particularly inventive development of the strand seal in question is the closed hollow profile divided into two chambers by a web, whereby the sealing section is given a stability that the different Areas of application of the string seal. Even if the string seal is one sudden and / or unexpectedly high closing pressure, for example at Unintentional slamming of a door that is exposed is described by the above Design of the sealing section both under normal stress and under extreme conditions a proper sealing of each other parts to be sealed.

The between the profile back and the transition area between the head Connecting wall and contact wall extending web gives the sealing section a high stability, so that a proper sealing effect can be achieved insofar as the components of the sealing section have a stable position relative to one another and the System wall always in even with frequent and / or sudden closing pressure provided in the intended manner on the part to be sealed.

As explained above, the web is included in the context of the present invention force transmission and distribution play a particularly important role. Here is a particularly high stability of the sealing section while realizing a preferred one Embodiment achieved, in which the web is approximately centered on the sealing section assigned section of the profile back is arranged.

As a particularly important feature of the invention, it should be noted that the Web advantageously both in the relaxed state and in the closed state under an incline between the profile back and the transition area between connecting wall and abutment wall at the head, the inclination of the web to the profile back in the relaxed state is conveniently about 30 degrees. In practice, the web is used from the profile back to the transition area in one direction between the connecting wall on the head side and the contact wall run, which is inclined away from the holding portion.

The web expediently runs essentially curved from the Back of the profile to the transition area between the connecting wall at the head and System wall. As a result, a uniform division of the Hollow profile accomplished in three approximately equal chambers, because the Holding section closer chamber by the application of the curvature of the System wall associated connecting wall section on the profile back in Closed state is divided into two individual chambers. So almost everyone can Closing state, even under extreme conditions, in an excellent way by the Sealing section are accomplished.

With regard to the dimensioning of individual components of the sealing section an embodiment proven, in which the web has a thickness that is approximately the thickness corresponds to the head-side connecting wall. In this way, the Sealing section not a dominating element, but rather are all components in any case of a similar strength, so that the force distribution is even Way is done.

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 in the practical execution of the strand seal according to the present invention advantageously two retaining lips provided, whereby the Probability of the holding section detaching from the holding groove is significantly reduced, since even in the practically non-occurring case of Failure of the holding effect of one of the holding lips the other still its effect unfolded.

An unexpectedly strong anchorage of the strand seal according to the present Invention in the retaining groove can be achieved in that the two retaining lips one have different lengths. As a result, bumps and Non-uniformities, for example, in terms of the width of one and the same Holding groove must be compensated, on the other hand, this means flexibility in relation increased to the possible uses of the strand seal insofar as this for Holding grooves of different widths and shapes can be designed and 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.

According to a particularly advantageous embodiment of the present invention a cover lip is provided between the holding section and the sealing section. By such a lip, the edge of the retaining groove in which the String seal anchored according to the present invention with its holding portion is covered and consequently against the undesired penetration of dirt, Water or the like protected in a reliable manner. This not only affects on the material resistance of the strand seal in a positive way, but leads also that the material of the window frame or the door frame is spared. Such a lip also proves to be more common and / or sudden stress as dimensionally stable and regarding their Reliable effect. In a preferred manner, the cover lip is longer than that at least one retaining lip, which makes it particularly safe and complete Coverage of the entire holding groove is guaranteed.

Should the present strand seal be developed in a particularly inventive manner are, the foot-side connecting wall has at least two through at least a curvature connected connecting wall sections. Hereby is a particularly good sealing effect of the sealing section in almost everyone Locked state guaranteed.

If you want to arrange the two connecting wall sections to each other characterize, so these two connecting wall sections are relaxed Condition expediently at an approximately right angle to one another, wherein the connecting wall section in connection with the profile back relaxed state preferably runs essentially straight and / or is preferably substantially perpendicular to the profile back.

Alternatively or in addition to this, the other ends in with the system wall Connected connecting wall section advantageously from the Holding section facing free end of the contact wall spaced into the contact wall, in order to have a particularly high stability in the closed state as well as a uniform distribution To guarantee force transmission from the system wall over the entire sealing section. Here, the one connected to the system wall Connecting wall section in the relaxed state in its the system wall facing area have a curvature.

Regarding the related to the wall system The connecting wall section is in addition to a preferred embodiment pointed out, in which this is connected with the system wall Connecting wall section in the relaxed state in its curvature facing area runs substantially parallel to the profile back. This like the aforementioned design forms ultimately also contribute to the essential feature of the invention that the foot-side connecting wall in Essentially closed state according to a particularly advantageous development S-shaped, which is not least due to the dimensional stability and durability of the Sealing section of the strand seal according to the present invention contributes.

For a full and full contact of the profile back on the respective To ensure the part to be sealed, the part assigned to the holding section runs Section of the profile back according to a particularly advantageous embodiment of the present invention slightly inclined to the sealing portion associated Section of the back of the profile.

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 a greater thickness than in the region of the sealing section.

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 is, to a certain extent, an optional Take up the widening of the foot-side connecting wall towards the profile back and can compensate.

Regardless of whether a rather weak or a strong closing pressure on the Sealing section of the strand seal is exerted "turns out to be the starting position" for the sealing section an arrangement is recommended, in which the contact wall and the back of the profile is inclined to each other in the relaxed state. The best Effects are achieved with the existing strand seal if the Advantageously inclination of the contact wall to the profile back in the relaxed state is about 45 degrees.

In order to ensure a particularly full and full contact of the system wall when closed To ensure the part to be sealed, the system wall runs in a relaxed manner Condition advantageously essentially straight.

As already explained above, the hollow profile through the web is in two chambers divided, wherein according to a preferred embodiment, the holding section the closer chamber is larger than the one further away from the holding section Chamber is. However, it must be taken into account here that a further subdivision of the chamber closer to the holding section by the S-shaped Course of the foot-side connecting wall takes place, whereby by the Curvature within the foot-side connecting wall on another support point the profile back is realized.

If you want a special stabilization of the strand seal according to the present Achieve invention, so the profile back according to an advantageous Embodiment at least one reinforcing strand. Such a expediently essentially rectangular Reinforcement strand is preferably in the head-side end region of the profile back provided and preferably formed from the second material.

A particularly clean fit of the profile back on the part to be sealed is achievable if the profile back on its closed hollow profile side facing away at least in sections, and in particular except in a section at the head end of the profile back almost all of it from the closed hollow profile side, provided with the second material is. Here is expediently a layer of the second material on the closed hollow profile facing away from the profile back, this Layer of the second material should be evenly thin.

For a particularly simple and easy kinking in the transition area between the System wall and the foot-side connecting wall and therefore a particularly rich and to achieve full-surface contact of the system wall on the part to be sealed has this transition area on its inside facing the chamber advantageously a notch, which is expedient as a predetermined kink works.

The transition region between the contact wall and the web points in the same way advantageously on its inside facing the chamber Expediently acting as a predetermined kink notch, which is a particular simple and easy kinking in this transition area and consequently particularly full and full contact of the system wall with the part to be sealed enables.

Regarding the first and second used to make the strand seal It is recommended to use different materials on plastics To use sliding friction coefficients. These materials offer with regard to Durability, stability and workability optimal properties and timely also in relation to the required restoring and / or torsional forces more than gratifying results.

Further refinements, features and advantages of the present invention Hereinafter illustrated by way of example using the two in FIGS. 1 to 3 Exemplary embodiments explained in more detail.

Figur 1:

eine (stark vergrößert dargestellte) Querschnittsansicht eines ersten Ausführungsbeispiels einer Strangdichtung gemäß der vorliegenden Erfindung im entspannten Zustand;

Figur 2:

eine (stark vergrößert dargestellte) Querschnittsansicht eines zweiten Ausführungsbeispiels einer Strangdichtung gemäß der vorliegenden Erfindung im entspannten Zustand; und

Figur 3:

eine Einbausituation eines Ausführungsbeispiels einer Strangdichtung gemäß der vorliegenden Erfindung im Schließzustand.

It shows:

Figure 1:

a (greatly enlarged) cross-sectional view of a first embodiment of a strand 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 seal according to the present invention in the relaxed state; and

Figure 3:

an installation situation of an embodiment of a strand seal according to the present invention in the closed state.

The same or similar parts are in Figures 1 to 3 with the same reference numerals Mistake.

Figure 1 shows a (greatly enlarged) cross-sectional view of a first Embodiment of a substantially formed from a first material M1 Strand seal according to the present invention in the relaxed state.

The strand seal has a holding section 1 on the foot side with two holding lips 11, 12 for anchoring the strand seal in a holding groove (see FIG. 3). Here are the holding lips 11, 12 towards their free end towards the sealing section 2 slightly inclined and have a different length, the from Sealing section 2 spaced retaining lip 11 shorter than that Sealing section 2 is closer lip 12.

Because of this difference in length, the retaining lip 12 is anchored in the String seal bent in the holding groove in the direction of the sealing section 2, see above that through the retaining lip 12 in the installed state, as it were, a kind of "barb" is formed, the unintentional detachment of the holding portion 1 from the Holding groove prevented in a reliable manner. This is clear from Figure 3 in which an installation situation of an embodiment of a strand seal according to the present invention is shown in the closed state.

The strand seal further has a head-side sealing section 2, which connects to the holding section 1 via a profile back 120. Here runs the the section of the profile back 120 associated with the holding section 1 is slightly inclined to the section of the profile back 120 associated with the sealing section 2, and the Profile back 120 has a greater thickness in the region of the holding section 1 than in FIG Area of the sealing section 2, so that the profile back 120 in Transitional area from the holding section 1 to the sealing section 2 tapers.

The profile back 120 here has an im in its head-side end region essentially rectangular reinforcement strand 1201. Furthermore is the Profile back 120 except in a section at the head end of the profile back 120 almost all of it facing away from the closed hollow profile 21, 22 Side with an evenly thin layer of a second material M2, the has a lower coefficient of sliding friction than the first material M1.

The sealing section 2 has a contact wall opposite the profile back 120 24, one on the side of the sealing section 2 facing away from the holding section 1 located head side connecting the profile back 120 and the contact wall 24 Connecting wall 23 and one on the side facing the holding section 1 of the Sealing section 2 located, the profile back 120 and the contact wall 24th connecting foot-side connecting wall 25. Here are the system wall 24 and the profile back 120 inclined to each other in the relaxed state, the inclination the contact wall 24 to the profile back 120 in the relaxed state about 45 degrees is.

There is a cover lip 3 between the holding section 1 and the sealing section 2 intended. Through this cover lip 3, the edge of the holding groove in which the Strand seal is anchored with its holding section 1, covered and consequently protected against the undesired penetration of dirt, water or the like. This not only affects the material resistance of the strand seal in positive way, but also leads to the fact that the material of the Window frame or the door frame is protected. The cover lip 3 turns out to be the case even with frequent and / or sudden stress dimensionally stable and reliable with regard to their effect. The lip 3 is longer than the holding lips 11, 12, which makes a particularly safe and complete Coverage of the entire holding groove is guaranteed.

In the first embodiment shown in Figure 1 is by a section of the profile back 120, by the arched inward in the relaxed state head-side connecting wall 23 through which in the relaxed state essentially rectilinear contact wall 24 and through the foot-side connecting wall 25 a closed hollow profile is limited. This closed hollow profile is through a Web 26 divided into two chambers 21, 22, the web 26 between the Profile back 120 and the transition area between the head-side connecting wall 23 and contact wall 24 extends in such a way that the one closer to the holding section 1 Chamber 21 is larger than the chamber 22 further away from the holding section 1 is.

The web 26, which is approximately in the center of the section assigned to the sealing section 2 of the profile back 120 is arranged here runs essentially easily curved between the profile back 120 and the transition area between head-side connecting wall 23 and contact wall 24 in the relaxed state an inclination of about 30 degrees in a direction away from the holding portion 1 is inclined. The thickness of the web 26 corresponds approximately to the thickness of the head-side connecting wall 25.

For a particularly simple and easy kinking in the transition area between the Contact wall 24 and the foot-side connecting wall 25 and therefore a special one full and full contact of the contact wall 24 on the part to be sealed achieve (cf. FIG. 3), this transition region has its chamber 21 facing inside a notch 245, which acts as a predetermined kink. In in the same way, the transition area between the contact wall 24 and the web 26 on its inside facing the chamber 21, a notch 246 which acts as a predetermined kink.

Furthermore, the contact wall 24 is on its closed hollow profile 21, 22nd opposite side with a second material M2 - in a form of a Sliding pad - provide which second material M2 has a lower one Has sliding friction coefficient as the first material M1. Here is the first Material M1 co-extruded with the second material M2. By the system wall 24 on its side facing away from the closed hollow profile 21, 22 with a second Material M2 is provided, it is ensured that a closing of the extruded wing rebate seal according to the first embodiment Window sash (see FIG. 3) is possible with little effort and insofar is easy when the window sash provided with the strand seal (see FIG. 3) immediately before completion of the closing process on the opposite parts of the window frame almost frictionless gliding past. Here, due to the arrangement of the second material M2, the a low sliding friction coefficient and consequently a high sliding value has, between the side facing away from the closed hollow profile 21, 22 Contact wall 24 of the strand seal and the correspondingly assigned parts of the Window frame, even with large windows, no significant frictional forces more on.

A particularly pleasant and smooth closing of the window sash with particularly little effort is also present in this regard not unproblematic area of the hinges (see FIG. 3) because the Contact wall 24 on its entire facing away from the closed hollow profile 21, 22 Side is provided with the second material M2. This can cause friction between the side of the contact wall 24 facing away from the closed hollow profile 21, 22 String seal according to the first embodiment and the corresponding associated parts of the window frame can be minimized in an efficient manner.

As for the degree of friction between that of the closed hollow profile 21, 22nd opposite side of the contact wall 24 of the strand seal and the corresponding assigned parts of the window frame (see FIG. 3) only the surface the outside of the contact wall 24 is decisive, it is sufficient that a uniform thin layer of the second material M2 on the closed hollow profile 21, 22nd facing away from the contact wall 24 is arranged.

From the representation of Figure 1 it can also be seen that the foot side Connecting wall 25 two connected to each other by a curvature 252 Connecting wall sections 251, 253, which in the relaxed state are approximately at right angles to each other. Here the runs with the Profile back 120 connecting connecting wall section 251 in relaxed state essentially rectilinear and stands essentially perpendicular to the profile back 120.

The other connecting wall section connected to the contact wall 24 253, in the relaxed state in its area facing the curve 252 runs essentially parallel to the profile back 120, opens from the Holding section 1 facing free end 241 of the contact wall 24 spaced into the Contact wall 24 and has in its relaxed state the contact wall 24 facing area has a curvature 2531, whereby the foot side Connecting wall 25 is essentially S-shaped in the closed state (see FIG. 3, in which an installation situation according to an embodiment of a string seal of the present invention is shown in the closed state).

Figure 2 shows a (greatly enlarged) cross-sectional view of a second Embodiment of a strand seal according to the present invention in relaxed state.

To avoid unnecessary repetitions, only the features are below set out by which the second embodiment shown in Figure 2 of the The first exemplary embodiment shown in FIG. 1 differs:

In this respect, the sealing section 2 in the second exemplary embodiment (see FIG. 2) a chamber modified compared to the first embodiment (see FIG. 1) 21 on when the contact wall 24 and thus also the sliding support in the form of Material strip M2 shorter than the first shown in Figure 1 Embodiment is formed.

The two embodiments shown in Figures 1 and 2, which are in essentially due to the different length of the respective contact wall 24 distinguish and their installation situation in the closed state is shown in Figure 3, disclose both under normal conditions of use and at elevated Stress due to increased closing pressure optimal reset or Torsional properties, the durability and functionality of each String seal is given in a convincing manner, because the sealing section 2 is characterized by an even application of force and a same power distribution.

This is due to the design of the holding section 1 in connection with the Sealing lip 3 a stable and reliable attachment in the retaining groove excellent sealing or protective function while avoiding the unwanted Guaranteed entry of dirt, water, wind or the like.

Claims (48)

String 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 strand 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 at least a section of the profile back (120), by the connection wall (23) on the head side, by the contact wall (24) and by the connection wall (25) on the foot side is characterized in that the strand seal is formed essentially from a first material (M1) and that the abutment wall (24) is provided, at least in sections, on its side facing away from the closed hollow profile (21, 22) with a second material (M2), the one has lower coefficient of sliding friction than the first material (M1). String seal according to claim 1, characterized in that the contact wall (24) on their entire side facing away from the closed hollow profile (21, 22) Side is provided with the second material (M2). String seal according to claim 1 or 2, characterized in that a thin layer of the second material (M2) on top of the closed one Hollow profile (21, 22) facing away from the contact wall (24) is arranged. String seal according to at least one of claims 1 to 3, characterized characterized in that the on the closed hollow profile (21, 22) facing away from the contact wall (24) arranged layer of the second Material (M2) is evenly thin. String seal according to at least one of claims 1 to 4, characterized characterized in that the first material (M1) with the second material (M2) is co-extruded. String seal according to at least one of claims 1 to 5, characterized characterized in that the first material (M1) and the second Material (M2) around plastics with different Coefficient of sliding friction. String seal according to at least one of claims 1 to 6, characterized characterized in that the head-side connecting wall (23) is curved inwards is. String seal according to at least one of claims 1 to 7, characterized characterized in that the closed hollow profile by a web (26) in two Chambers (21, 22) is divided. String seal according to claim 8, characterized in that the Holding section (1) closer chamber (21) larger than that of Holding section (1) is further away chamber (22). String seal according to claim 8 or 9, characterized in that the web (26) between the profile back (120) and the transition area between Head-side connecting wall (23) and contact wall (24) runs. String seal according to at least one of claims 8 to 10, characterized characterized in that the web (26) is approximately centered on the sealing section (2) associated section of the profile back (120) is arranged. String seal according to at least one of claims 8 to 11, characterized characterized in that the web (26) is inclined between the Profile back (120) and the transition area between the head Connecting wall (23) and contact wall (24) runs. String seal according to claim 12, characterized in that the inclination of the web (26) to the profile back (120) in the relaxed state about 20 degrees to about 25 degrees. String seal according to at least one of claims 8 to 13, characterized characterized in that the web (26) from the profile back (120) to Transitional area between the head-side connecting wall (23) and Contact wall (24) runs in a direction that extends from the holding section (1) is inclined away. String seal according to at least one of claims 8 to 14, characterized characterized in that the web (26) is essentially slightly curved from the Profile back (120) to the transition area between the head Connecting wall (23) and contact wall (24) runs. String seal according to at least one of claims 8 to 15, characterized characterized in that the web (26) has a thickness which is approximately the thickness corresponds to the head-side connecting wall (23). String seal according to at least one of claims 1 to 16, characterized characterized in that the retaining lip (11, 12) towards its free end is inclined towards the sealing section (2). String seal according to at least one of claims 1 to 17, characterized characterized in that two retaining lips (11, 12) are provided. String seal according to claim 18, characterized in that the two Retaining lips (11, 12) have a different length. String seal according to claim 19, characterized in that the from Sealing section (2) further away holding lip (11) shorter than that the sealing section (2) closer holding lip (12). String seal according to at least one of claims 1 to 20, characterized characterized in that between the holding portion (1) and the sealing portion (2) a cover lip (3) is provided. String seal according to claim 21, characterized in that the Cover lip (3) is longer than the at least one retaining lip (11, 12). String seal according to at least one of claims 1 to 22, characterized characterized in that the foot-side connecting wall (25) at least two connected to one another by at least one curvature (252) Connecting wall sections (251, 253). String seal according to claim 23, characterized in that the Connecting wall sections (251, 253) in the relaxed state under one are approximately at right angles to each other. String seal according to claim 23 or 24, characterized in that the connected to the profile back (120) Connecting wall section (251) in the relaxed state essentially runs straight. String seal according to at least one of claims 23 to 25, characterized characterized in that the one connected to the profile back (120) Connecting wall section (251) in the relaxed state essentially is perpendicular to the profile back (120). String seal according to at least one of claims 23 to 26, characterized characterized in that the one connected to the contact wall (24) Connecting wall section (253) from the holding section (1) facing free end (241) of the contact wall (24) spaced into the contact wall (24) flows. String seal according to at least one of claims 23 to 27, characterized characterized in that the one connected to the contact wall (24) Connecting wall section (253) in its relaxed state in its Area facing the contact wall (24) has a curvature (2531). String seal according to at least one of claims 23 to 28, characterized characterized in that the one connected to the contact wall (24) Connecting wall section (253) in its relaxed state in its Curvature (252) facing area substantially parallel to Profile back (120) runs. String seal according to at least one of claims 1 to 29, characterized characterized in that the foot-side connecting wall (25) in the closed state is substantially S-shaped. String seal according to at least one of claims 1 to 30, characterized characterized in that the section of the holding section (1) assigned Profile back (120) slightly inclined to the sealing section (2) associated Section of the profile back (120) runs. String seal according to at least one of claims 1 to 31, characterized characterized in that the profile back (120) in the region of the holding section (1) has a greater thickness than in the area of the sealing section (2). String seal according to at least one of claims 1 to 32, characterized characterized in that the profile back (120) in the transition area from Holding section (1) towards the sealing section (2) has a tapered shape having. String seal according to at least one of claims 1 to 33, characterized characterized in that the contact wall (24) and the profile back (120) in relaxed state inclined to each other. String seal according to claim 34, characterized in that the inclination the contact wall (24) to the profile back (120) in the relaxed state Is 45 degrees. String seal according to at least one of claims 1 to 35, characterized characterized in that the contact wall (24) in the relaxed state in runs essentially straight. String seal according to at least one of claims 1 to 36, characterized characterized in that the profile back (120) at least one Has reinforcing strand (1201). String seal according to claim 37, characterized in that the Reinforcement strand (1201) in the head end area of the profile back (120) is provided. Strand seal according to claim 37 or 38, characterized in that the Reinforcement strand (1201) is substantially rectangular. String seal according to at least one of claims 37 to 39, characterized characterized in that the reinforcing strand (1201) from the second material (M2) is formed. String seal according to at least one of claims 1 to 40, characterized characterized in that the profile back (120) on its from the closed Hollow profile (21, 22) side facing away at least in sections with the second material (M2) is provided. String seal according to claim 41, characterized in that the Profile back (120) except in a section at the head end of the Profile back (120) almost all of the closed hollow profile (21, 22) facing away from the second material (M2) is provided. String seal according to claim 41 or 42, characterized in that a Layer of the second material (M2) on the closed hollow profile (21, 22) facing away from the profile back (120). String seal according to at least one of claims 41 to 43, characterized characterized in that the on the closed hollow profile (21, 22) facing side of the profile back (120) arranged layer of the second Material (M2) is evenly thin. String seal according to at least one of claims 1 to 44, characterized characterized in that the transition region between the contact wall (24) and the foot-side connecting wall (25) on its the chamber (21) facing inside has a notch (245). String seal according to at least one of claims 1 to 45, characterized characterized in that the transition region between the contact wall (24) and the web (26) on its inside of the chamber (21) facing one Notch (246) has. String seal according to claim 45 or 46, characterized in that the Notch (245, 246) acts as a predetermined kink. String seal according to at least one of claims 1 to 47, characterized characterized in that the strand seal as a strand-shaped sash seal is trained.

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