DE102007048772B4 - Fire protection and / or smoke protection, sealing profile and process for its manufacture - Google Patents

Abstract

Fire protection and / or smoke protection with a plate-shaped end element (1) and a firmly anchored to a building part frame in which the closure element (1) is rotatably mounted, wherein in a gap region between an end face of the end element (1) and an opposite sealing surface of the frame a sealing profile (3) made of an elastomer material extending along the gap region is arranged on the frame and in a closed position of the closure element (1) an edge profile (20) arranged sealingly on a face of the closure profile (1) in sealing contact with the sealing profile (3) is, characterized in that a surface of the sealing profile (3) coming into contact with the edge profile (20) and / or a surface of the edge profile (20) which comes into contact with the sealing profile (3) is provided with a surface coating (26, 27) is / are the coefficients of sliding friction of the respective upper surface is reduced in comparison with an uncoated state, wherein the sealing profile (3) is rounded in cross-section flat triangular and in the region of its edge profile facing the tip, and ...

Description

The Invention relates to a fire protection closure and / or smoke protection closure, with a plate-shaped End element and a frame which can be firmly anchored to a building part, in which the closing element is mounted rotatably, wherein in a gap area between an end face of the end element and one opposite lying sealing surface the frame on the frame extending along the gap region Sealing profile is arranged from an elastomeric material and in a closed position of the closing element arranged on an end face of the end profile Edge profile sealingly in contact with the sealing profile in contact. Furthermore, the invention relates to a sealing profile for a like above-described fire door or smoke door. It also concerns The invention relates to a method for producing an elastomeric material existing sealing profile of a fire door and / or smoke door, wherein the production takes place using an extruder from whose the cross-sectional shape of the sealing profile corresponding die endless strand of uncrosslinked material escapes, then submerged The effect of heat is crosslinked.

Fire barriers and / or Smoke barriers The type mentioned are both as swing doors or Doors with Stop commonly known. Such doors must have a sealing function both across from Wind and sound as well as especially against smoke and fire passage fulfill. The sealing systems used for this purpose must on the one hand tolerances of the door leaf and the frame and the resulting tolerances in the gap area can compensate for the aforementioned components. tolerances can thereby be conditioned by manufacture or occur during assembly or even caused by thermal expansions. Especially in case of fire be through the big one thermal stress also caused corresponding large thermal distortion, in particular in distortions of the door leaf but also the frame can express themselves. Preferably Therefore, a sealing system must have tolerances both within the plane of the door leaf as can also compensate perpendicular to this.

From the DE 10 2004 051 307 A1 a fire protection of the type described above is known, in which both the sealing profile and the edge profile of the designed as a full-glass door leaf end element made of a silicone elastomer.

When disadvantageous occurs in the known fire protection in appearance, that at the opening and closing process of the door leaf Relative displacements between the frame-side sealing profile and the frame itself occur. In extreme cases, it can by a particularly strong deformation or rejection of the sealing profile even come to that sealing profile with an anchoring profile in sections or in full is pulled out of the corresponding holding groove, causing either a proper closing and sealing process impossible made or at least one next closing severely hampered or prevented.

From the DE 20 2006 017 815 U1 a floor seal of a smoke door is known, which is equipped with a concertina-like body to compensate for height tolerances between the lower end of the door panel and the floor can. In order to maintain a functional capability of the smoke protection seal over a long period of time and in particular to reduce the wear on the rubber-elastic seal due to movement, its surface is provided in a lower, contact-facing area with a coating having a significantly higher Shore hardness compared to the base material. The known coating is matched to the friction combination coating material - floor covering (tiles, PVC, carpet, wood, etc.).

The DE 102 59 924 B4 describes a sliding door system, which has two sliding panels consisting of glass panes, wherein the glass panes are encircled by a profile. The upper horizontal profile of the glass sheet is applied to a seal which is attached to a bearing at the opening supporting profile. To facilitate the displaceability of the sliding leaf, the profile in the region of a contact surface has a lower coefficient of friction than in the remaining region of the profile.

According to the DE 199 33 410 B4 discloses a pendulum or stopper door with a closure element of two glass panes with a fire protection filling therebetween, the glass panes are surrounded by a profile surrounding, which is set between the glass panes, that it is not visible from the outside. On the front sides of the glass panes, the door is provided with an end profile, in which source strips are embedded. There remains a gap between the end profile and the frame, which can optionally be closed with a thin flexible sealing lip on the end profile.

Finally, from the DE 92 17 884 U1 elastic seals of various geometric shapes known.

task

Of the Invention is based on the object, a fire protection and / or to provide a smoke control certificate in spite of the material pairing for sealing profile and edge profile malfunctions in consequence of unwanted Deformations or distortions of the profiles or one of the two Profiles is prevented. Furthermore to a corresponding sealing profile and a method for its Production to be proposed.

solution

outgoing from a fire protection and / or smoke protection certificate initially described type, this object is achieved according to the invention solved, a surface of the surface coming into contact with the edge profile Sealing profile and / or one with the sealing profile in contact coming surface the edge profile is / are provided with a surface coating, the sliding friction coefficient of the respective surface in comparison reduced with an uncoated condition, with the sealing profile in cross-section flat triangular and rounded in the region of its edge profile facing the tip is and inside the sealing profile itself over the whole length extending cavity is located.

The solution according to the invention reduced thus the closing or opening process caused lateral forces and thus also the deformations or displacements of the relevant Parts of the sealing profile or edge profile. The coating is fixed to the base material of the sealing profile and / or Connected edge profiles, leaving a permanent and during the entire life of the fire protection closure or smoke protection closure featured Solution created becomes.

Preferably the triangle is rounded in the region of its tip with the greatest possible radius of curvature. In the open position of the termination element is the area of the apex of the triangle opposite the something squeezed Form in the closed position inflated to in the closed position secure contact between the opposing surfaces too to reach. The elevation is dependent from the expected gap tolerances, wherein to achieve a sufficient sealing effect a minimum preload even in the closed state should remain of about 1 mm. To tolerances in the other direction compensate, is a sufficient possibility for deflection of the sealing profile in the closed state provide, in which case the triangle in a flatter shape depressed becomes.

According to one Particularly preferred embodiment of the invention contains the surface coating in the liquid, not cured Condition cyclohexane, xylene, ethanol, Ethylbenzene, ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol.

Out It is known in the art to have such a composition to be used as a primer. Such a primer serves as a bonding agent between different material surfaces, z. B. between the surfaces of silicone elastomers and the surfaces of adhesive tapes Base of acrylate adhesives. A composition of the invention proposed Art is for example from the company 3M (Switzerland) AG in Rüschlikon under the name "primer 94 "made. surprisingly Way, it has now been found that so far only used as a primer when applied to a surface of a made of elastomeric material sealing profile or an edge profile which cooperates with an elastomeric sealing profile of the coefficient of friction is significantly reduced. For sealing systems of smoke protection shutters and / or Fire barriers of the type described above leads This friction reduction to increase the reliability and a reliable one Avoidance of unintentional, lateral force induced profile shifts or distortions.

Also if already with an arrangement of the coating on only one the two relatively moving profiles an improvement the sliding process is observed, should preferably in the Sliding process in contact surfaces of both Profiles are provided with such a surface coating. Furthermore, there are preferably both the sealing profile as also the edge profile of a silicone-containing elastomeric material.

The Invention further ausgestaltend is provided that the sealing profile in cross-section with a baseline of the isosceles triangle parallel to the sealing surface the frame runs.

Around to ensure a satisfactory dimensional stability of the sealing profile can starting from the top of the triangle two support legs in the interior of the triangle, which coincide with the baseline form another, preferably isosceles, triangle, whereby the cavity is divided into three chambers.

The aforementioned support legs then develop a particularly good effectiveness when they are extended beyond the baseline and are supported with their respective ends on a support surface of the frame, wherein the support surface of a recessed groove portion of a composites with the frame nen holding profile for the sealing profile is formed.

If the sealing profile on two edges, the in a direction perpendicular to the plane of the closure element from each other is anchored to the frame, the risk is that the sealing profile by the lateral forces occurring during the closing process on one side is pulled out of its holder, especially low. there should the sealing profile at the edges, each with an undercut Klemmwulst in an adapted undercut clamping groove in the frame intervention. Such a positive connection between the sealing profile or its clamping beads and the frame or an attached holding profile facilitates about that In addition, the assembly, which takes place without adhesive, as well as a possible disassembly when replacing the sealing profile.

The inventive task will be solved further by a sealing profile of a fire door and / or smoke door, consisting of an elastomeric material having a curved shape in cross-section and a contact surface, the sealing profile according to the invention being characterized that the contact surface with a coefficient of sliding friction in comparison with the elastomeric one Material reducing surface coating cyclohexane, xylene, ethanol, ethylbenzene, ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol.

outgoing from a method of the type mentioned is the basis lying task as well solved by that prior to crosslinking of the elastomeric material to surface areas of the strand is a layer of a flowable material containing cyclohexane, Xylene, ethanol, ethylbenzene, Ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol applied and then the elastomeric material together with the material forming the layer is crosslinked under heat, creating a strand on the strand solid surface protective layer is produced.

The common networking of the base material with the coating material leads to an intimate bond between the coating and the base material. In particular, this makes it possible that the surface coating with the underlying substrate in the form of the elastomeric material over the Cross-phase cross-link can and thus fixed via covalent bonds is bound to the elastomeric material of the sealing profile.

The inventive method Further, it is proposed that the elastomeric material a peroxide-added silicone rubber is and that the crosslinking by radical release under the action of heat.

According to one Embodiment of the method according to the invention the application of the material forming the layer takes place by brushing, -rolling, -streichen or in the manner of a spray painting each using a preferably stationary applicator.

If the endless strand after applying the layer forming Material through a hot air duct guided is preferably on a conveyor belt at the same time with the vulcanization of the elastomeric material also for a rapid Evaporation of the solvent in the coating forming material provided so that a uniform thin surface coating forms on the profile surface in the manner of a lacquer layer.

Finally is according to the invention still provided that the sealing profile after the cross-linking is tempered, especially for a period between two Hours and six hours in a convection oven at a temperature between 180 ° C and 220 ° C, preferably from 200 ° C, is suspended. By this annealing residues and degradation products of crosslinking chemicals (peroxides). In this way will also prevents the degradation products during later use efflorescence, which would result in unpleasant optical properties. moreover disappears by the tempering and the unpleasant smell of the peroxide. The already cross - linked material before the annealing surface coating is opposite the temperatures prevailing during the annealing process stable, points afterwards However, a pale yellowish discoloration, the usability the coated sealing profile but impaired in any way.

embodiment

The invention will be explained in more detail below with reference to an exemplary embodiment of a sealing profile and an edge profile coming into contact with it with reference to the accompanying drawing:
A not altogether shown, in its basic structure known Rauchschutzabschluss consists of a per se known frame, not shown, and a rotatably mounted therein and only schematically shown end element 1 in the form of a full glass door leaf. In known manner, the door leaf consists of a plurality of individual panes with interposed layers of transparent fire protection gel. From the frame is only designed as an aluminum extruded profile 2 for a silicone elastomer elastomer sealing profile 3 shown. The sealing profile 3 has the shape of a cross-section flat triangle in the area of its tip 4 is rounded. The triangle is formed by two legs of equal length 5 and a base line connecting its opposite ends 6 , Starting from the top 4 furthermore, two extend inside the sealing profile 3 arranged support legs 7 that deals with free end sections 8th over the baseline 6 extend beyond. The interior of the gasket profile 3 is through the two support legs 7 in three in the longitudinal direction of the sealing profile 3 extending chambers 9 . 10 . 11 divided.

The holding profile firmly connected to the frame 2 has at its opposite edges in each case an undercut clamping groove 12 on, in which the sealing profile 3 with equally adapted undercut shaped Klemmwülsten 13 intervenes. The clamping beads 13 extend over the entire length of the sealing profile 3 and are each near the associated longitudinal edges. To the clamping beads 13 Transverse to its longitudinal direction to provide increased elasticity and thus facilitate the assembly process is located inside each Klemmwulstes 13 a cavity in the form of a chamber 14 , edge strips 15 each close to the outside to the clamping beads 13 and ensure an aesthetically pleasing gentle outlet of the sealing profile 3 into the surface of the retaining profile 2 ,

Between the clamping grooves 12 of the holding profile 2 there is another groove area 16 extending over the entire middle section of the retaining profile 2 extends. In the groove area 16 is a fire protection strip 17 inserted, which consists in known manner from heat-swelling material. On a the final element 1 facing surface 18 the fire protection strip 17 support the support legs 8th of the sealing profile 3 with slight deflection of herself to the outside.

The final element 1 is on one of the sealing surface of the frame facing end face 19 with an edge profile made of a transparent silicone elastomer 20 Mistake. The edge profile 20 has a U-shape and extends around the edges to be protected 21 of the glass pane package up to edge areas of viewing surfaces 22 of the conclusion element 1 , One of the frame facing front contact surface 24 of the edge profile 20 is slightly arched to the closing process of the closing element 1 a sliding of the contact surfaces 24 of the edge profile 20 on the one hand and the contact surface 25 of the sealing profile 3 on the other hand, in a geometrical way.

The drawing figure shows the two profiles 3 and 20 in an undeformed position in which the furthest points of the profile cross sections just touching each other. In practice, an installation of the two profiles 3 and 20 be done so that in a closed position of the closing element 1 the two profiles 3 and 20 with a certain voltage applied to each other, so that the sealing profile 3 deformed a few millimeters, but at least one millimeter towards the frame. In this way, sufficient preload and thus sealing effect in the area of the touching profiles 3 and 20 be achieved.

To the sliding of the two profiles 3 and 20 To facilitate is on the one hand, the entire the final element 1 facing contact surface 25 of the sealing profile 3 (starting at the edge strip 15 along the thighs 5 to the opposite edge strip 15 ) with a surface coating 27 which significantly reduces the coefficient of friction with the silicone elastomer base material. On the other hand, the entire slightly curved contact surface 24 of the edge profile 20 with such a surface coating 26 Mistake. In the drawing are the surface coatings 26 . 27 by an increased line width in the area of the respective contact surfaces 25 and 24 illustrated.

The production of the sealing profile 3 is briefly explained below. The production of the edge profile 20 can be done in an analogous manner.

The sealing profile 3 is made of a special fire-resistant and in case of fire ceramizing silicone rubber compound. For this purpose, the raw rubber mixture is extruded through a die and brought into the profile shape shown in the drawing. Immediately after leaving the die, the still uncrosslinked sealing profile becomes 3 at its contact surface 25 coated with a paint solution by brush or spray painting. In which the later coating 27 forming material is the product "Primer 94" the company 3M (Switzerland) AG in Rüschlikon / Switzerland. The above-mentioned primer contains cyclohexane, xylene, ethanol, ethylbenzene, ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol, and has a solid content of about 6 at a liquid consistency at room temperature (viscosity between 30 and 40 cp) %.

After application of the coating material, the sealing profile runs 3 via a conveyor belt through a hot air duct. At the high temperatures prevailing there, the peroxide mixed in the silicone materials decomposes and forms radicals which cause the three-dimensional crosslinking of the polymer chains of the rubber mixture (vulcanization). In the course of this reaction, a plant is created from the thermoplastic raw mixture fabric with rubber-elastic properties. As a side effect, the hot air ensures rapid evaporation of the solvent from the applied paint solution, so that forms a uniform thin paint layer on the profile surface.

in the Following the painting and vulcanization are the profiles in a separate step for four hours at 200 ° C in a convection oven tempered by residues and degradation products of the crosslinking chemicals (Peroxides) to remove. This will prevent the Degradation products during later Use bloom and in addition, the unpleasant odor of the peroxide disappears. The Lacquer layer is opposite this tempering process stable, but then has slightly yellowish discoloration on.

The drawing shows in horizontal section extending in the vertical direction gap region between the end element 1 and the frame not shown in full with the retaining profile attached thereto 2 , An identical design of the sealing system will usually be chosen in the upper horizontally extending gap area. Also in the area of the soil, it is basically possible, but not usual, to use such a sealing system. In principle, the use of the sealing system according to the invention in the gap region on the hinge side is also conceivable.

1

termination element

2

retaining profile

3

weatherstrip

4

top

5

leg

6

baseline

7

support legs

8th

end

9

chamber

10

chamber

11

chamber

12

clamping groove

13

clamping bead

14

chamber

15

edge strips

16

groove region

17

Fire protection bar

18

surface

19

face

20

edge profile

21

edge

22

view space

24

contact area

25

contact area

26

surface coating

27

surface coating

Claims (11)

Fire protection and / or smoke protection finish with a plate-shaped closing element ( 1 ) and a fixed to a building part frame in which the closing element ( 1 ) is mounted rotatably, wherein in a gap region between an end face of the closure element ( 1 ) and an opposite sealing surface of the frame on the frame along the gap region extending sealing profile ( 3 ) is arranged from an elastomeric material and in a closed position of the closing element ( 1 ) on an end face of the end profile ( 1 ) arranged edge profile ( 20 ) sealing with the sealing profile ( 3 ) is in contact, characterized in that one with the edge profile ( 20 ) coming into contact surface of the sealing profile ( 3 ) and / or one with the sealing profile ( 3 ) coming into contact surface of the edge profile ( 20 ) with a surface coating ( 26 . 27 ), which reduces the coefficient of sliding friction of the respective surface in comparison with an uncoated state, the sealing profile (FIG. 3 ) is triangular in cross-section and rounded in the region of its edge profile facing the tip and in the interior of the sealing profile ( 3 ) is located over its entire length extending cavity. Fire-proofing and / or smoke-tight enclosure according to claim 1, characterized in that the surface coating ( 26 . 27 ) Cyclohexane, xylene, ethanol, ethylbenzene, ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol. Fire protection closure and / or smoke protection closure according to claim 1 or 2, characterized in that the sealing profile ( 3 ) and / or the edge profile ( 20 ) consist of a silicone-containing elastomeric material / consists. Fire protection closure and / or smoke protection closure according to one of claims 1 to 3, characterized in that the sealing profile ( 3 ) in cross-section with a baseline ( 6 ) of the isosceles triangle runs parallel to the sealing surface of the frame. Fire-extinguishing and / or smoke-tight enclosure according to claim 4, characterized in that starting from a point ( 4 ) of the triangle two supporting legs ( 5 ) extend inside the triangle, which together with the baseline ( 6 ) form another, preferably isosceles, triangle, whereby the cavity is divided into three chambers ( 9 . 10 . 11 ) is divided. Fire protection and / or smoke protection according to one of claims 1 to 5, characterized in that the sealing profile ( 3 ) at two edges which are in a direction perpendicular to the plane of the end element ( 1 ) are anchored to each other, is anchored to the frame, wherein the sealing profile ( 3 ) at the edges of an undercut Klemmwulst ( 13 ) in an adapted undercut clamping groove ( 12 ) engages in the frame. Sealing profile ( 3 ) of a fire door and / or smoke door, consisting of an elastomeric material, with a curved cross-section shape and a contact surface ( 25 ), characterized in that the contact surface ( 25 ) having a surface coating which reduces the coefficient of sliding friction in comparison with the elastomeric material in its initial state ( 26 ) containing cyclohexane, xylene, ethanol, ethylbenzene, ethyl acetate, an acrylic polymer, 2,5-furandione and propan-2-ol. Method for producing a sealing profile consisting of an elastomeric material ( 3 ) of a fire door and / or smoke door, using an extruder from which the cross-sectional shape of the sealing profile ( 3 ) of the uncrosslinked material, which is subsequently crosslinked under the action of heat, characterized in that before crosslinking to surface regions of the strand, a layer of a flowable material comprising cyclohexane, xylene, ethanol, ethylbenzene, ethyl acetate, an acrylic polymer , 2,5-furandione and propan-2-ol is applied and then the elastomeric material together with the layer-forming material is crosslinked under heat, whereby on the strand a surface coating ( 26 . 27 ) is formed. Method according to claim 8, characterized in that the elastomeric material is a peroxide-added silicone rubber and that the crosslinking occurs by the release of free radicals under the action of heat. Method according to one of claims 8 or 9, characterized that the endless strand after applying the layer forming Material, preferably on a conveyor belt, through a hot air duct guided becomes. Method according to one of claims 8 to 10, characterized in that the sealing profile ( 3 ) is tempered after crosslinking, in particular for a period of between 2 hours and 6 hours in a convection oven at a temperature between 180 ° C and 220 ° C, preferably from 200 ° C, is exposed.