EP0760048B1 - All-round sealing section - Google Patents

Abstract

PCT No. PCT/DE96/00238 Sec. 371 Date Oct. 28, 1996 Sec. 102(e) Date Oct. 28, 1996 PCT Filed Feb. 13, 1996 PCT Pub. No. WO96/29497 PCT Pub. Date Sep. 26, 1996A seal that can be used in groove surfaces, in permanent glasswork, or in casement windows and is comprised of a sealing profile 1 having a profile base 3 and an anchoring wedge 2. On the side of the profile base 3 that is opposite the anchoring wedge 2, a sealing pad 4 and a sealing lip 5 are formed, and a nose strip 6 is positioned on the end of the sealing pad 4. These parts of the sealing profile 1 are made of a thermoplastic rubber. They are to be joined to the semi-finished closure of the window shortly following extrusion by the manufacturer. The corresponding semi-finished product can then be cut to size and joined by the window builder with the sealing profiles 1 being bonded together at the same time so that the entire seal is guaranteed. This makes the window builder's step of "inserting the sealing profile" completely unnecessary.

Description

The invention relates to a sealing profile made of elastic material for sealing of windows and similar closures, especially plastic profile windows, the hollow chamber profile of a sealing bead, a sealing lip arranged at the free end protruding nose, an approximately parallel to the plastic profile Has basic profile body and an anchoring wedge formed thereon.

Such seals are generally known. From EP-PS 0 247 533 Known seal has a profile body, on the one hand the anchoring wedge and on the other hand sealing bead and sealing lip are formed. The sealing lip consists of a hook-shaped part, while the sealing bead made of foam rubber or Similar material exists and accordingly against it on the glass pane presses. The sealing lip has a slightly concave design, which means an increase in the sealing force when pressing is achieved. Sealing lip and bead perform their sealing effect independently of each other, d. H. they are through the pressed glass pane accordingly displaced or deformed so that the necessary Sealing is guaranteed. A basically the same sealing profile is from EP-A-0 575 937 known. Incisions are provided in the basic profile body in order to connect to T and Cross collisions, especially in the case of aluminum windows, the necessary turning easier and safer to manufacture. The disadvantage of these known sealing profiles is that they are only used for sealing windows against glass can, while in the area of fixed glazing or also stop level and sealing profiles adapted to the respective application are required. Accordingly these sealing profiles must also be manufactured or better said after completion of the respective casement, window or other closure be pressed into the groove provided and then after inserting the disc or to provide the appropriate seal after installing the closure. Accordingly, the window manufacturer must have a separate one when manufacturing the windows Provide work step in which the corresponding different sealing profiles to be assembled. The effort involved is considerable, quite a bit of it apart from the fact that in the corner area special measures are required to achieve the to maintain the necessary seal (see EP-A-0 575 937).

Other profiles are DE-A1-38 11 568, FR-A-2 374 501, FR-A-2 529 938, GB-A-2 251 260, DE-A1-42 28 987 and CH-PS-326 089. You show that sealing profiles adapted to the respective application, partly with, partly without Hollow body. For several areas of application and largely automatic operation they are unsuitable.

From DE-GM 92 07 608 is a sealing profile with a hollow body and a web formed on it known. The footbridge is slit or pointed at the foot a notch. This notch is intended to facilitate insertion into the groove. The Plastic residues occurring during profile welding can remain during processing and pressing in outside of the notch. An insecure seat or even an imprecise seat the sealing profile is the result.

DE-GM 94 18 038 relates to a frame profile which is clearly recognizable for the rebate seal and the glazing seal have different sealing profiles are needed. The problems described earlier, also with simultaneous Welding of the frame profile and sealing profiles cannot be avoided.

The company Metzeler Kautschuk GmbH has a sealing profile in DE-GM 85 34 283 claimed that should also remain wrinkle-free in the corner area. So it will this profile ultimately stipulates that the intended nose does not bend up, rather the entire back deforms without wrinkling.

The object of the invention is therefore to create a sealing profile, that can be used equally for the three sealing points on the window or lock is and always when the prefabricated window profile is assembled secure and tight fit guaranteed at all sealing points.

The object is achieved according to the invention in that profile base body, Anchoring wedge, sealing bead and sealing lip both as a stop seal as Glazing gasket can be used to form hollow chamber profiles Pressure on the free side of the balloon-like hollow body associated with the sealing bead Nose is designed to push up through additional guide parts, the sealing lip and sealing bead connecting portion is molded or bent and that the Anchoring part of a sweat residue that is open and pointing away from the basic profile body has receiving foot.

Such a sealing profile can advantageously be used both as a stop and as Glazing gasket can be used. In addition, it can also be used with fixed glazing be used so that it can be regarded as a real all-round sealing profile. This consists of thermoplastic rubber or thermoplastic elastomer Material is designed so that it is sawn by the window manufacturer and then also can be joined together with the welding of the profiles without the Sweat remnants can cause an unsafe fit. The one covering the 6 m poles Accordingly, window manufacturers receive them with the seal already in place, whereby they can be pressed in mechanically because it consists of corresponding deformable material, and has a secure wedge to ensure a secure fit. These 6 m poles As usual, the window builder cuts itself to miter, then to the respective one To combine size ratios accordingly, d. H. for plastic windows to weld together. As the sealing profiles used in the rods are corresponding have also been sawn off or beveled off, you can now use welded, d. H. be put together and exactly in the corner area, so that there is no need for further complex work here. The window maker can do the individual windows then bring it to the site with or without glass, complete it if necessary and use it without further work being necessary. For the window maker this completely eliminates the process of pushing in the sealing profiles. This is not only a labor saving, but also at the same time increased security because the all-round sealing profiles according to the invention Manufacturers of window profiles are pressed in or drawn in by machine, so that a precise fit is always guaranteed. The special training of Sealing bead with the nose arranged at the end and the pressure securing it Guide parts ensure that a seal in this area is optimal in any case can be realized, which is favored by the fact that the nose guaranteed when printed on the sealing lip and raised sufficiently high. By the balloon-like hollow body is easy to adapt to the respective circumstances possible and the possibility improved, for all different applications and to be able to use the same sealing profile. The balloon-like design increases the restoring forces, which improves the sealing in the respective areas.

An advantageous training opportunity for a leadership team is that at assigned to a sealing lip and sealing bead, bent web and is designed as an angle back pointing away from the nose. This training of Steges ensures that the nose is raised specifically when pressed onto the sealing lip and thus favorably deformed the seal.

The mutual influencing of the sealing bead and sealing lip is thereby targeted improved that another guide part assigned to the back of the sealing lip and is designed as a kink. In particular, between the sealing bead and sealing lip resulting partition or web transmits the movements of the Sealing lip advantageous on the sealing bead when the washer is on the sealing lip hangs up accordingly. The same applies to the other areas, whereby one good double seal can be achieved.

The targeted influence of the sealing bead by the sealing lip is still thereby improves that the profile body in the area of the sealing lip and sealing bead separating web is bent towards the anchoring wedge. This will make the stiff Plate, which otherwise forms the profile body, advantageous in the sealing process involved with, which can be improved by the fact that the web inclined and that the raising of the nose is favorably inclined. This means that the web runs obliquely from the basic profile body towards the nose, so that when pressed onto the sealing lip, the end closer to the nose of the web this part or the sealing bead deformed accordingly and the nose pulls up.

On the one hand to ensure that through the open design of the anchoring wedge the restraining forces remain sufficient and, on the other hand, also overextensions To prevent, the solution according to the invention provides that the open The resulting wall is reinforced, preferably from a higher one Shore hardness plastic. On the one hand, this plastic ensures that necessary restoring forces and on the other hand for the fact that overstretching also in the longitudinal direction cannot occur, which ultimately lead to the seal coming off the groove can pull out.

To avoid that in the processing or in the manufacture of the sealing profile different plastics have to be joined together the invention advantageously that the wall or the foot of a core harder, elastic material, preferably polypropylene. This core, the embedded in the material of the sealing profile over the entire length of the sealing profile is advantageously takes over the function of the known thread, thus preventing an overstretch and has the advantage that this second plastic material in actual plastic material of the sealing profile is embedded, so that a corresponding Connection is not required at all. Apart from that, it yields This gives it an optically better appearance, with the core also being the one described and necessary fixation aid of the sealing profile in the groove.

The fixation aid described is particularly optimal when the core is U-shaped, the base web or profile body flank webs protruding at right angles are shaped like an anchor tip. In order to there is a spring effect that the fixing of the foot or the anchoring wedge additionally secured in the groove, which also means that it can be processed mechanically of the sealing profile can be improved.

The invention is particularly characterized in that a sealing profile created that all sealing points on the window or on the closure are used can, so that only a single sealing profile is required to the Sealing on the stop level, on the fixed glazing or on the wing glazing to provide. In addition, the thermoplastic rubber (TPE) Sealing bodies are advantageously pressed or drawn in mechanically, so that after the extrusion of the semi-finished product, the seal can already be introduced and thus in the manufacturing plant, where appropriate machines are available and where it guarantees an optimally safe and uniform insertion of the sealing profile is. These semifinished bars can then be sawn by the window manufacturer and with sawed the welded seal together, welded and then then to be processed further. The window builder saves a lot of work and costs and also has the certainty that the seal is inserted safely and accurately. The sealing profile as such is also particularly suitable as a seal, because it consists of two sections in the sealing area, namely the sealing lip and the Sealing bead, which are cleverly designed and arranged to influence each other, that an always even seal after inserting the glass panes or the areas to be sealed is guaranteed. Overall, this is an essential one Improvement over the previous state of the art in multiple effects secured.

Fig. 1

einen Schnitt durch ein Dichtungsprofil mit zwei Hohlkörperkammern und gerade durchlaufendem Profilgrundkörper,

Fig. 2

einen Dichtungsprofil mit zwei Kammern und die Bewegung begünstigendem Profilgrundkörper,

Fig. 3

ein Doppeldichtungsprofil mit offenem Fuß und

Fig. 4

ein Dichtungsprofil, ähnlich dem nach Fig. 3 mit durch Kern verstärktem Fuß.

Further details and advantages of the subject matter of the invention emerge from the following description of the associated drawing, in which a preferred exemplary embodiment is shown with the necessary details and individual parts. Show it:

Fig. 1

a section through a sealing profile with two hollow body chambers and straight profile base body,

Fig. 2

a sealing profile with two chambers and the profile base body which favors movement,

Fig. 3

a double seal profile with an open foot and

Fig. 4

a sealing profile, similar to that of FIG. 3 with a foot reinforced by the core.

The profiles of Fig. 1 and Fig. 2 correspond in principle, the Sealing profile 1 here from an anchoring wedge 2 with a closed base body stands, as well as the profile base body 3 and the sealing bead 4 arranged on top and sealing lip 5.

The sealing bead 4 is assigned a nose 6 at the end, which is to be sealed Safe object. It is on the side pointing away from the sealing lip 5 7 arranged and there practically forms the end piece.

Sealing bead 4 and sealing lip 5 are in the longitudinal direction 9 of the entire sealing profile 1 extending hollow body 10, 10a formed. While according to FIG. 1 and 2 two separate hollow bodies 10, 10a are provided, which are connected by a web 11 are separated, is a continuous hollow body in the embodiment of FIGS. 3 and 4 10 provided.

When placing the body not shown here, for example the glass pane the sealing lip 5 is deflected, the kink 12 this deflection practically specifies. This deformation of the hollow body 10 or the hollow chamber 14, the web 11 is also influenced, so that the outer end the hollow body chamber 15 forming nose 6 is quasi erected or pulled up. It is then pressed against the glass pane so that the desired seal is guaranteed is.

1 of the web 11 has an angled back 16, which Deforming or pulling up the nose 6 favors, it is inclined according to FIG. 2 in such a way that it runs approximately parallel to the wall 18, which ends the Nose 6 is wearing. The sealing profiles 1 according to FIG. 1 and according to further differ 2 characterized in that a continuous profile base body 3 is predetermined according to FIG. 1, while it is pulled down in the area of the web 11 according to FIG to increase.

The profiles of Fig. 3 and Fig. 4 differ in that only a hollow body 10 or a hollow chamber is provided and beyond a nose 6, 6a on both sides. Above all, the anchoring wedge 2 is the special one Use appropriately trained, namely he has a down open foot 19. This can cause the burn-up when welding in this area penetrate without representing a disability. In addition, this foot 19 or its wall 20 made of a special, namely harder material. Through the Using a polypropylene foot prevents overstretching at the same time and also the necessary rigidity, which affects the effect of the anchoring wedge 2 reached.

Fig. 4 finally shows a further variant insofar as here the foot 19 with a core 21 made of a correspondingly harder and less flexible material is equipped. This core 21 has an embedded in the profile body 3 Base web 22 and flank webs 23, 24 projecting approximately at right angles, the ends are shaped like anchor tips. This U-shaped design of the core 21 improved fixing in the groove, not shown here, because the protruding from the base web 22 Flank webs 23, 24 provide a corresponding spring action.

In the embodiments according to FIGS. 3 and 4, too, the end Nose 6, 6a pushed up when loading the sealing lip 5, so as to achieve the desired seal to reach. The sub-area connecting the sealing lip and sealing bead is more or less molded or bent so as to raise the nose 6, 6a to improve.

Claims (7)

1. Sealing section (1) made of elastic material for sealing windows and similar seals, in particular plastic section windows, the hollow chamber section of which has a sealing lip (5), a sealing bead (4) with a projecting nose (6) arranged on the free end, a shaped basic body (3) running almost parallel to the plastic section and a securing wedge (2) formed thereon, characterised in that the shaped basic body (3), securing wedge (2), sealing bead (4) and sealing lip (5) form a hollow chamber section which can be used as a stop seal and a glazing sealing, in that on pressure on the free side of the balloon-like hollow body (10) the nose (6) allocated to the sealing bead (4) is designed to exert high pressure by additional guide elements (11/16; 12), wherein the section connecting the sealing lip (5) and sealing bead (4) is shaped or bent, and in that the securing wedge (2) has an open foot (19) pointing away from the shaped basic body (3) and receiving welding residues.
2. Sealing section according to claim 1, characterised in that a guide element (11/16) is assigned to a sealing lip (5) and sealing bead (4) separating, bent web (11) and is designed as angle backs (16) pointing away from the nose (6).
3. Sealing section according to claim 1, characterised in that a further guide element (12) is assigned to the rear of the sealing lip (5) and is designed as a bend point
4. Sealing section according to claim 1, characterised in that the shaped basic body (3) in the region of the sealing lip (5) and sealing bead (4) separating web (11) is bent in the direction of the securing wedge (2).
5. Sealing section according to claim 1, characterised in that the wall (20) forming the open foot (19) is reinforced, and preferably is made of a plastic of greater Shore hardness.
6. Sealing section according to claim 5, characterised in that the wall (20) or the foot (19) has a core (21) made of a harder, stretch-resistant material, preferably polypropylene.
7. Sealing section according to claim 6, characterised in that the core (21) is designed to be U-shaped, whereby the flank webs (23, 24) projecting at right angles from the base web (22) in the shaped basic body (3) are anchor-pointed at the ends.

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