EP0828055A2 - Profiled sealing strip for windows or similar building elements - Google Patents

Abstract

The seal rests against a window pane, protruding from the base part which is fixed to a window casement (1). A support part also protrudes from the base part. The seal consists of cellular or foam material, and the base part is harder and less compressible. The support part has a row of protuberances separated by recesses and spaced apart. The row of protuberances extends in the lengthwise direction of the seal (5).

Description

The invention relates to a strand-shaped seal for Windows or similar components in the preamble of the claim 1 genus mentioned.

Such a seal is already known (EP 0 247 533 B1 and EP 0 291 017 A1). In addition, one is available for investment on Window glass serving seal known (EP 0 133 294 B1), at which is a flap-like sealing part on the window glass is applied that an anvil-like originating from the base part Approach applies pressure to the sealing part. Furthermore are Similar seals are known (DE 42 28 874 A1 and EP 0 652 346 A1), in which the sealing part has its elastic deformability through a larger cavity inside the sealing part receives. While such seals are made in one piece are in another known seal (DE-OS 26 47 742) the sealing part made of flexible plastic material other than that made of rigid plastic Base part and support part manufactured.

Although such seals have already proven their worth in some cases have, it prepares both during assembly and during Sealing problems when the strand of the sealing profile is around For example, 90 ° corners must be deflected, as a result folds often appear, which leads to leaks.

The invention has for its object a strand To improve the seal of the type mentioned at the beginning, that, despite being easy to manufacture, without loss the tightness also around 90 ° corners in the glazing area Window can be relocated without having to assemble Problems arise.

The invention is characterized in claim 1.

According to one of the preferred embodiments of the invention, the Support part a series of wells, which by Raises (increased in relation to the depressions) from each other are separated and spaced apart so that the row of depressions in the longitudinal direction of the strand-shaped Seal extends. This results in a kind comb-shaped structure of the support part. The wells are in particular embossed notch-shaped or groove-like recesses or material weaknesses. According to another The invention weakens the material of the support part an elongated space between essentially parallel thin-walled, especially thin like a skin Share and according to a further embodiment of the invention Material weaknesses as perforation holes in the form of short ones Slits formed through the support part.

Abstützfunktion" beispielsweise in einem Schlitz des insbesondere aus Holz bestehenden Fensterflügels erfüllen, erlauben die Materialschwächungen im Bereich der Vertiefungen zwischen den Erhöhungen ein besseres Umbiegen um beispielsweise 90°, obwohl das Material an den betreffenden Stelles des Basisteils bzw. Abstützteils eine Shore-Härte zwischen 50 und 95, insbesondere zwischen 65 und 80 Shore aufweist. Das Umbiegen" der Dichtung im Bereich des Dichtungsteils, dessen Querschnittsdicke insbesondere das Mehrfache des Abstützteils beträgt, bereitet deshalb kein großes Problem, weil der Dichtungsteil aus insbesondere geschlossenzelligem bzw. geschäumtem Material, vor allem Moosgummi besteht. Beide Teile, der Dichtungsteil einerseits und der Basis- sowie Abstützteil andererseits, bestehen im übrigen aus gleichem Material, insbesondere Gummi oder Elastomeren, selbst wenn durch Einbringen sehr kleiner Hohlräume, die insbesondere homogen verteilt sind, im Dichtungsteil unterschiedliche Eigenschaften dieser Teile eingestellt werden.While the increases in the preferred embodiment of the invention the

Support function ", for example in a slot in the window sash, which is made in particular of wood, the material weaknesses in the area of the depressions between the elevations allow a better bending by, for example, 90 °, although the material has a Shore hardness between 50 at the relevant positions of the base part or support part and 95, in particular between 65 and 80 shore Bending "of the seal in the area of the sealing part, the cross-sectional thickness of which is in particular several times that of the supporting part, does not pose a major problem because the sealing part consists of, in particular, closed-cell or foamed material, especially foam rubber. Both parts, the sealing part on the one hand and the base and support part on the other hand, consist of the same material, especially rubber or elastomers, even if different properties of these parts are set in the sealing part by introducing very small cavities, which are in particular homogeneously distributed.

The invention avoids the V-shaped incision or cutting by 45 ° on miter and gluing on the corners what is not only very time-consuming, but also often leads to sealing problems at the corners, especially with driving rain led. The strand-shaped seal according to the invention is in front especially on the outside exposed to wind and rain in the area between window sash and window glass.

The recesses are made in particular by embossing, for example Running an embossing wheel into the material strand before vulcanization or by cutting accordingly produced with a cutting knife after the vulcanization process. It is recommended if the remaining cross-sectional thickness of the material at the wells extending in the longitudinal direction extending row is about 0.1 to 0.3 mm, while the distances between adjacent depressions or adjacent increases between 1 and 5 mm should.

In addition, it is recommended to carry out the surveys or deepening wavy and not sharp-edged, because this avoids the risk of tearing and the support function is favored despite the fact that it can be deflected around corners.

Nevertheless, it is basically also possible to do the deepening not wavy with gradual changes in cross-section but with a rectangular or pointed cross-section to provide.

The support part is in cross section between the ridges preferably weakened to about 10-40%.

An essentially undulating arrangement also offers advantages weakening lines running parallel to each other, essentially through elongated perforation holes in the Material of the support part are formed and preferably in The normal direction to the outer edge of the same, because of this good mutual support from neighboring, for example Incisions of separate parts of the support part he follows.

Another form of material weakening is particularly advantageous: here the support part is essentially in two lobe-shaped parts running parallel to each other divided, separated by a space which extending in the longitudinal direction of the profile from the outer edge of the Support part towards the base part of the sealing profile moves there. The flap-shaped parts are then in cross section arranged approximately finger-shaped and can be lip-shaped be. When pressing a window, for example to the support surface of the one adjacent to the window pane Lapping the support part is this towards the other Lobe pressed so that parts in the sealing position both flaps lie on top of each other and support each other. Depending on the profile construction, this can also several spaced apart support surfaces on the support part in the sealing position of the sealing profile can be achieved.

It has been shown that despite being relatively wider Sealing profile formation, i.e. relatively wider Support parts and a relatively large distance Support surface of the support part from the sealing surface of the as Sealing lip trained sealing part, surprisingly no wrinkling when turning around corners in such a way occurs that the sealing function and the thermal insulation function is impaired in accordance with the Heat Protection Ordinance.

Figur 1

einen Teilschnitt durch ein vom Fensterrahmen ein Stück weit abgeschwenktes Fenster;

Figur 2

einen Querschnitt durch eine erfindungsgemäße Dichtung;

Figur 3

eine Schrägaufsicht auf die Dichtung von Figur 2;

Figur 4

einen Querschnitt auf eine andere Ausbildung der erfindungsgemäßen strangförmigen Dichtung;

Figur 5

einen Querschnitt durch einen Fensterflügel und Fensterrahmen bei montierter Dichtung,

Figur 6

einen vergrößerten Ausschnitt A" aus Figur 5;

Figur 7

einen Querschnitt durch eine Ausbildung eines anderen erfindungsgemäßen Dichtungsprofils;

Figur 8

eine teilweise Aufsicht auf ein Dichtungsprofil von Figur 7;

Figur 9

eine alternative Ausbildung des Dichtungsprofils mit einem zweilappigen Abstützteil und

Figur 10

eine weitere alternative Ausbildungsform mit einem zweilappigen Abstützteil.

Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. Show:

Figure 1

a partial section through a window pivoted away from the window frame;

Figure 2

a cross section through a seal according to the invention;

Figure 3

an oblique view of the seal of Figure 2;

Figure 4

a cross section on another embodiment of the strand-shaped seal according to the invention;

Figure 5

a cross section through a window sash and window frame with the seal installed,

Figure 6

an enlarged section A "from Figure 5;

Figure 7

a cross section through an embodiment of another sealing profile according to the invention;

Figure 8

a partial plan view of a sealing profile of Figure 7;

Figure 9

an alternative embodiment of the sealing profile with a two-lobe support part and

Figure 10

another alternative form of training with a two-lobe support part.

According to Figure 1 are two glass panes forming a window pane 2 attached to a window sash 1 made of wood, the from the fixed frame or window frame 4 a bit in the interior R is swung away. At groove 3 in the window sash 1 is on the W side facing the weather Side a seal 5 according to the invention, for example, according to Art of Figure 2.

On the one hand, this seal 5 has a bead-like seal part 6 made of foam rubber with numerous small cell-like or pore-like cavities 6b, which at the in broken lines illustrated dividing line 6a in FIG passes over the base part 7, which, on the other hand, is compact Rubber is made. The seal 5 is therefore a one-piece integrated element made of the same base material, here rubber, its properties only through the proportion of voids 6b in the sealing part 6 compared to the base part 7 are changed. The base part 7 closes on the same side as the Sealing part 6, but facing away from the weather side W, a support part 8, which consists of increases 9, which by Material weaknesses 10 are separated from each other, like that can be seen even better from FIG.

During the sealing part 6 in the longitudinal direction LR a uniform Cross-sectional thickness that is at least twice the cross-sectional thickness of the elevations 9 on the support part 8 is, the elevations 9 are each through depressions 10 separated from each other in the longitudinal direction LR. Here there is also a distance between the elevations 9 and the Sealing part 6 in the transverse direction QR to form a kind Separation channel 22 between sealing part 6 and support part 8.

In the embodiment of FIG. 4, the support part 8 has more Rows of several, namely three ridges 9a on the Place the elevation 9 of Figure 3 on; these increases 9a are separated from one another by sawtooth-like depressions 10a and form rows extending in the transverse direction QR of increases 9a. The sawtooth-like formation of these depressions 10a is designed such that the gently rising Also flank the outer elevation 9a located on the edge Insert the support part 8 with the base part 7 in the Slit 3 of the window sash 1 according to FIG. 6 facilitates that Pulling out but difficult. The inventive Seal 5 inserted so far into the slot 3 that the Seal 5 finds a good hold there and with the Sealing part 6 made of foam rubber and flattened to the Creates outside of the glass pane 2 according to Figure 5. At the the inside R of the other glass pane 2 is another seal 14 by means of a holding strip 11 pressed. The glass panes 2 are supported on a block 13 on and are spaced by a spacer 12 kept apart.

The alternative strand-shaped sealing profile shown in cross section in FIG. 7 has in the middle the base part 7 made of compact elastomeric material, in particular siliconized EPDM with a hardness of 50-80 IRHD. From the base part 7 extends on one side of the support part 8 to its outer edge 8a, while on the other side of the base part 7 - at an angle of approximately 90 degrees to the support part 8 - the bead-shaped lip-like sealing part 6 is made of the same material as that Support part 8 and the base part 7 can exist, but has an in particular closed-cell structure with numerous small pore-shaped or cellular cavities 6b and a density of 0.2-0.8 g / cm ³ . The base part 7 is provided with a recess 15 for pressing onto a frame Ra, for example a window frame, so that the corner of the frame Ra is covered on the weather side (W) by a support lip 16.

In partial supervision of this sealing profile according to FIG. 8 it can be seen that the perforation holes 17 in shape short slots through the entire support part 8 extend along straight lines of weakness 19, which extend in Normal direction NR on the outer edge 8a of the support part 8 pull in while the sealing profile is in the longitudinal direction of the profile PR extends. The lines of weakness 19 can also run wavy with the main axis in the normal direction NR.

In the alternative embodiment according to FIG Sealing profile a holding foot 18 on the base part 7 and one Sealing part 6 made of cellular material during the Support part 8 in cross section as shown forked is profiled: which is on the base part 7 in the area of Holding foot 18 adjoining lower tabs 8b of the support part 8 is in the original position shown in Figure 9 at a distance from the upper longer tab 8c; between the two Tabs 8b, 8c there is a gap-shaped space 20, which extends in a plane that extends in the profile direction PR (according to Figure 8) but orthogonal to the normal direction NR moves there. The upper tab 8c is longer in profile than that lower tabs 8b and at the end diagonally up to Support surface bent at edge 8a. The base part 7 and the two cuticle-like thin-walled tabs 8b, 8c consist of compact EPDM.

In Figure 10 is an alternative embodiment of the sealing profile - to a certain extent as a combination of the sealing profiles of Figures 7 and 9. Starting from the base part 7 extends approximately at right angles to the sealing part 6 made of cellular material, a support web 21, the end of which Support surface 8d is able to form if the one not shown here Window pane 2, the support surface 8a at the end of it subsequent upper lobe-shaped thin-walled part 8c of the Support part 8 bent back far enough in the closing direction SR Has. A support surface then forms 8d to the supporting surface at the edge 8a Support surface. When the window pane 2 is pressed in further The support web 21 with the outer flap 8c becomes SR pressed further in the closing direction SR until the window pane 2 attacks on the sealing part 6 and this one piece compresses widely to form another sealing surface; in in this position, part of the outer flap 8c of the Support part 8 on the lower or inner tab 8b by the space 20 is reduced accordingly far. Also here the two of the support web 21 are laterally fork-shaped protruding tabs 8b, 8c formed very thin-walled.

Particularly favorable conditions are becoming wider Support areas from 8d to 8a and despite a relatively large size Distance A from the support surface at the edge 8a to the sealing surface reached on the sealing part 6.

The tongue-shaped support parts 8b, 8c according to FIG. 9 and 10 can additional weakenings in particular in the form of Perforation holes 17 along lines of weakness 19, for example according to Figure 8.

It is advisable to form the sealing part 6 in such a way that the elastomeric foam with preferably closed cells or cavities 6a of an average size in the micrometer to millimeter range preferably has a density between 0.2 and 0.8 g / cm ³ .

Claims (11)

Strand-shaped seal made of elastomeric or elastically deformable material with a cross-sectional profile with the following profile parts: a base part (7) for attachment to a component, such as a window frame, a bead-like sealing part (6) with material weaknesses on one side of the component (7) and a support part (8) arranged at a distance from the sealing part (6) and having material weaknesses,
characterized,
that material weakening of the sealing part (6) by small pore-shaped or cellular cavities (6b) (cellular material of the sealing part (6)) and
that material weakening of the support part (8) by at least one row of depressions (10), which are separated from one another by elevations (9) and arranged such that the row of depressions (10) in the longitudinal direction (LR) of the strand-like seal (5) extends, and / or are formed by an intermediate space (20) between essentially parallel, thin-walled parts (8b, 8c) of the support part (8) and / or by perforation holes (17) in the form of short slots through the support part (8). Seal according to claim 1,
characterized,
that the support part (8) has further rows of depressions (10a) which are separated from one another by elevations (9) in a transverse direction (QR) running transversely to the longitudinal direction (LR) of the strand-shaped seal (5). Seal according to claim 1 and 2,
characterized,
that the recesses (10a) of the rows running in the transverse direction (QR) are formed less deep in the support part (8) or in the base part (7) than the recesses (10) of the row of elevations (9) extending in the longitudinal direction (LR) . Seal according to one of the preceding claims,
characterized,
that the cross section of the base part (7) is reduced to a cross-sectional thickness between 0.1 and 0.3 mm at the locations of the depressions (10) of the row extending in the longitudinal direction (LR). Seal according to one of the preceding claims,
characterized,
that the ridges (9) of the row extending in the longitudinal direction (LR) are separated from one another at regular intervals of between 1 and 5 mm. Seal according to one of the preceding claims,
characterized,
that the recess (10, 10a) in the base part (7) or in the support part (8) are embossed or cut. Seal according to one of the preceding claims,
characterized,
that the sealing part (6) protrudes from the base part (7) on substantially the same side as the support part, but has a multiple thickness as the latter in the unattached state. Seal according to one of the preceding claims,
characterized,
that the depressions (10) of the row extending in the longitudinal direction (LR) extend from an edge of the seal (5) to almost the sealing part (6) and that the cross section of the seal in the area of these depressions (10) is only about 0.1-0 , 4 is as thick as the seal cross section in the area of the elevations (9). Seal according to one of the preceding claims,
characterized,
that the space (20) between the thin, skin-like, lobe-shaped parts (8b, 8c) of the support part (8) extends in a plane orthogonal to the normal direction (NR) to the outer edge (8a) of the support part (8) in the longitudinal direction (PR) of the profile. Seal according to one or more of the preceding claims,
characterized,
that the cellular material of the sealing part (6) has an essentially closed-cell structure with small cavities (6b) of an average size between 1 and 100 microns and a density between 0.2 and 0.8 g / cm ² . Seal according to one of the preceding claims,
characterized,
that the base part (7) has a Shore hardness between 50 and 95 °.

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