EP3770370B1 - Door seal arrangement - Google Patents

Description

TECHNICAL FIELD

The present invention relates to a sealing arrangement for sealing a gap between a door leaf and a floor.

STATE OF THE ART

Door seals are used in areas where soundproofing and draft protection are desired. They should also be light-tight. These door seals can be designed as brush or grinding seals. They are preferably designed as lowering seals with a sealing strip, which is automatically lowered when the door leaf is closed and which seals a gap between the door leaf and the floor. In the case of hinged doors, activation is usually done mechanically, for example by pressing in an actuation button on the door frame that protrudes on one or two sides when closing the door leaf, thereby activating a spring-loaded lowering mechanism.

However, in buildings with controlled ventilation, especially in low-energy buildings and passive houses, it must be possible to exchange air between the individual rooms even when the interior doors are closed. This also applies to individual rooms with ventilation, such as toilets and wet rooms such as bathrooms.

So revealed EP 1 936 097 A1 a door seal system with a lowering seal, which is arranged in an outer rail. There is a groove between the housing rail of the lowered seal and the outer housing, which acts as an air channel and which allows air to circulate from one side of the seal to the other side of the seal even when the sealing strip is lowered.

In WO 2010/142053 A1 It is proposed to arrange sound-damping elements within the air duct. In EP 2 664 741 A1 A fan is arranged in the air duct. EPO 1 936 097 A1 and EP 2 824 271 A1 also disclose sealing arrangements with air channels.

Furthermore, sealing systems for sliding doors are known from the prior art, which prevent the sliding door from opening unintentionally due to the restoring force of the lowered sealing strip. WO 2017/190779 A1 , WO 2017/068173 A1 and WO 2017/191273 A1 disclose triggering units of a lowering seal, also called activation units, which are arranged laterally to the lowering seal and which run onto a support surface when the sliding door is closed and thereby actuate the lowering seal. These seal arrangements are called zero force release because the lowered seal does not exert any force on the sliding door in the sliding direction. Furthermore, no increased effort is necessary when closing the sliding door. If these sealing systems are used for interior doors, they should be as narrow as possible for visual and user-friendly reasons.

Narrow lowering seals for wing doors are also known in the prior art. So revealed EP 2 554 774 A1 a mechanically automatically actuated lowering seal with a housing rail and a very narrow sealing strip which can be raised and lowered. The sealing strip has a support rail, which is spring-loaded with respect to the housing rail, and a sealing element, which rests sealingly on the floor when the sealing strip is lowered. The sealing element is attached to the support rail. For this purpose, the sealing element has two lateral legs, between which the support rail is arranged. An inwardly directed fastening rib is arranged on each leg. So that the sealing strip is as narrow as possible, the two fastening ribs are arranged offset in height from one another.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to create a sealing arrangement which is also suitable for sliding doors, in particular for sliding doors with a zero-force release Lowering seal, which allows air circulation, but can still be made relatively narrow.

This task is solved by a sealing arrangement with the features of patent claim 1.

The sealing arrangement according to the invention for sealing a gap between a door leaf of a sliding door and a floor has a housing rail for fastening in or on the door leaf. The housing rail has a downwardly open first groove with a first side wall, a second side wall and a first web connecting these two side walls. A sealing strip for sealing the gap is arranged in the first groove. The sealing arrangement has a downwardly open cavity which runs parallel to the groove and which forms a guide channel for receiving a guide means of the sliding door. The cavity is at least partially open at the top. When the gap is sealed, it allows air to circulate from one side of the sliding door via an underside of the cavity to the top of the cavity on the opposite side of the sliding door.

This arrangement also makes it possible for sliding doors to ensure air circulation between rooms when closed.

The guide means is usually stationary and preferably arranged on the floor or on the threshold or on the building wall or on the side door frame.

Since the guide channel of the sliding door guide is also used for air circulation, the sealing arrangement and thus also the sliding door leaf can be made very narrow.

This arrangement or device is particularly suitable for sliding doors that connect two rooms within a building, i.e. for interior doors. For example, an interior door with a door thickness of 38 mm can be equipped with a sealing arrangement according to the invention that is 30.5 mm wide.

The housing rail preferably has a second groove which forms the cavity.

This minimizes the door thickness.

According to the invention, an air duct is present on an outside of the first side wall and on an outside of the first web, which enables air circulation together with the cavity. Alternatively, the air duct runs in a straight line from the first web to the outside.

Preferably, there is an outer rail which is arranged at a distance from the housing rail, with the air duct running between the housing rail and the outer rail.

The air duct is preferably arranged between the sealing strip and the outer rail and the cavity extends in the longitudinal direction between the sealing strip and the outer rail.

The lateral arrangement of the cavity relates to the sealing state of the sealing strip, i.e. it is at least partially at the same height as the sealing strip in its sealing position.

In preferred embodiments, there is a lowering mechanism for raising and lowering the sealing strip relative to the housing rail, the lowering mechanism being actuable by means of a triggering unit that can be activated when the door leaf is closed and the triggering unit being at least partially arranged in the cavity. This arrangement allows the cavity to be used for three purposes: for guiding the sliding door, for air circulation and for operating the lowering seal. This triple use minimizes the space required and thus enables the provision of a very narrow sliding door.

Preferably, a part of the trigger unit, preferably the stationary part of the trigger unit, and the guide means are arranged on a common component. The component is preferably stationary and attached to the floor or on the threshold. An alternative to this solution is in other preferred embodiments Trigger unit arranged in a different location. For example, it can protrude from the front of the seal, for example in the form of a release button known in the prior art. In other embodiments, the trigger unit is at least partially arranged in the air duct, i.e. outside the cavity. This also optimizes the space required.

So that the sliding door can be closed with as little effort as possible and/or so that the sliding door does not open again automatically, a zero-force lowering seal is preferably present. In preferred embodiments, the trigger unit therefore has a pivotable contact element and a force transmission element, wherein the contact element contacts a contact surface when the door leaf is closed and moves along this contact surface when the door leaf closes, and the pivoting movement of the contact element causes a movement of the force transmission element, whereby a Lowering mechanism of the sealing arrangement is activated and the sealing strip is lowered. Preferably, the contact surface is directed upwards and the contact element rests on the contact surface. Preferably, the force transmission element is also designed to be pivotable. Preferably one of the lowering seals is used, as mentioned at the beginning WO 2017/190779 A1 , WO 2017/068173 A1 and WO 2017/191273 A1 are described.

However, this arrangement according to the invention is also suitable and advantageous for other types of triggering units, in which the triggering unit is arranged laterally to the sealing strip.

The outer rail and the housing rail can be designed as two individual components, which are preferably attached individually to the door leaf. Alternatively, the outer rail is designed as part of the door leaf. Alternatively or additionally, depending on the embodiment, the housing rail can be attached to the outer rail. In other embodiments, the outer rail and the housing rail are formed in one piece. Preferably, the housing rail protrudes from the outer rail at least on one end face, preferably on both end faces.

According to the invention, the cavity is made up of two opposite ones Side walls and an upper web connecting the two side walls together, the upper web and / or one of the two side walls having at least one upper through opening and this at least one through opening creating the connection from the cavity to the air duct. In this arrangement, the housing rail is preferably connected to the outer rail via this upper web and fixed to it. Preferably, a first of the two side walls is a side wall of the housing rail and a second of the two side walls is a side wall of the outer rail. This simplifies manufacturing and assembly and also minimizes space requirements.

The housing rail preferably has a third side wall, with the second groove being arranged between the second and third side walls. This is a cost-effective design with a minimal number of components.

In preferred embodiments, a second web is present which connects the second and third side walls to one another, the second web having at least one through opening for air circulation.

Preferably, the upper web of the cavity has a plurality of through openings distributed over the length of the sealing arrangement.

The first web and the second web are preferably aligned with one another. Preferably, the upper web of the housing rail and the upper web of the cavity are formed together in one piece.

The second web preferably has a plurality of through openings distributed over the length of the sealing arrangement. This makes it possible to exchange air over the entire longitudinal direction of the sealing arrangement and thus of the door leaf. The area share of the through openings is preferably approximately 60% of the area of the second web.

In preferred embodiments, the housing rail and the outer rail each have a substantially U-shaped cross section that is open at the bottom. The Air circulation preferably takes place along the outside of the housing rail from below through the U-shaped cross section of the outer rail upwards and down again on the opposite side of the housing rail to the open end of the U-shaped cross section of the outer rail.

In preferred embodiments, the housing rail, the outer rail and a connecting element between the housing rail and the outer rail consist together of a first and a second component, the first component having a substantially U-shaped cross section with an inner middle wall and the second component having a substantially U-shaped shaped cross section with a shortened side wall, the middle wall forming a side wall of the housing rail and the shortened side wall resting on the first component and, together with a side wall of the first component, forming a side wall of the outer rail. The connecting element is thereby formed by the upper web of the cavity. Depending on the embodiment, the second component is an independent component or it is part of the door leaf, especially if the door leaf is a metal door.

In preferred embodiments, a side wall of the housing rail and/or an upper web of the housing rail has a through opening through which the triggering unit acts on a lowering mechanism of the sealing strip. This is a space saver. Education.

Depending on the embodiment, the air duct is empty or at least one sound-damping element is arranged in it.

To ensure that the seal arrangement is as narrow as possible, it is recommended to use a lowering seal that is as narrow as possible. In a preferred embodiment, the sealing strip therefore has a support rail and a sealing element attached thereto, the sealing element having two lateral legs, each with a fastening rib, the fastening ribs being arranged offset in height from one another on each side of the sealing element. Preferably one of the lowering seals is used, as mentioned at the beginning EP 2 554 774 A1 is described.

Further embodiments are specified in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Figur 1

einen Querschnitt durch eine erfindungsgemässe Dichtungsanordnung in einer ersten Ausführungsform;

Figur 2

eine perspektivische Darstellung der Dichtungsanordnung gemäss Figur 1 von vorne;

Figur 3a

eine perspektivische Darstellung der Dichtungsanordnung von einer Seite mit einem Befestigungswinkel;

Figur 3b

eine perspektivische Darstellung der Dichtungsanordnung gemäss Figur 3a von unten und in gedrehter Darstellung, eingebaut in einen Türflügel;

Figur 4

eine perspektivische Darstellung eines Teils der Dichtungsanordnung gemäss Figur 3a mit einer Auslöseeinheit;

Figur 5

eine weitere perspektivische Darstellung eines Teils der Dichtungsanordnung gemäss Figur 4;

Figur 6

einen Querschnitt durch eine erfindungsgemässe Dichtungsanordnung in einer zweiten Ausführungsform, eingebaut in eine Schiebetür;

Figur 7

eine perspektivische Darstellung der Schiebetür gemäss Figur 6;

Figur 8

einen Querschnitt durch eine erfindungsgemässe Dichtungsanordnung in einer zweiten Ausführungsform und

Figur 9

einen Querschnitt durch eine erfindungsgemässe Dichtungsanordnung in einer dritten Ausführungsform.

Preferred embodiments of the invention are described below with reference to the drawings, which serve only for explanation and are not to be interpreted in a restrictive manner. Shown in the drawings:

Figure 1

a cross section through a sealing arrangement according to the invention in a first embodiment;

Figure 2

a perspective view of the sealing arrangement according to Figure 1 from the front;

Figure 3a

a perspective view of the sealing arrangement from one side with a mounting bracket;

Figure 3b

a perspective view of the sealing arrangement according to Figure 3a from below and in a rotated view, installed in a door leaf;

Figure 4

a perspective view of part of the sealing arrangement according to Figure 3a with a trigger unit;

Figure 5

a further perspective view of part of the sealing arrangement according to Figure 4 ;

Figure 6

a cross section through a sealing arrangement according to the invention in a second embodiment, installed in a sliding door;

Figure 7

a perspective view of the sliding door according to Figure 6 ;

Figure 8

a cross section through a sealing arrangement according to the invention in a second embodiment and

Figure 9

a cross section through a sealing arrangement according to the invention in a third embodiment.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the Figures 1 to 5 A first exemplary embodiment of the sealing device or sealing arrangement according to the invention is shown. A sealing strip that can be lowered and raised relative to the housing rail 1 is arranged in a housing rail 1. The sealing strip has a support rail 2 and a sealing element 3 arranged thereon. The housing rail 1 and the carrier rail 2 are preferably made of aluminum, the sealing element 3 preferably consists of a flexible material, such as silicone or rubber.

The sealing element 3 has two lateral legs 30, which are connected to one another by a lower arch 31. Depending on the embodiment, this arch 31 lies sealingly on a building floor (not shown here) when the sealing strip is lowered. In the embodiment shown here, an inclined lip 32 is formed on the arch 31 so that it rests on the floor when the sealing strip is lowered and can therefore compensate for larger unevenness. There is one on the inside of each leg 30 Fastening rib 33, 34 arranged. The fastening ribs 33, 34 are accommodated in corresponding grooves in the support rail 2. Depending on the embodiment, fastening ribs 33, 34 are at the same height. In the example shown here, however, they are arranged offset in height from one another and preferably engage in the grooves via the central axis M of the support rail 2. The lower fastening rib 33 is arranged at a corresponding height from the upper fastening rib 34. This allows the sealing strip and thus the lowering seal to be made very narrow. The sealing element 3, also called a sealing profile, can also have a different shape. It can be made in one piece or in several parts.

The sealing strip is held in the housing rail 1 by means of a lowering mechanism, which is not shown in detail here. The lowering mechanism usually has a slide 5 ( Figures 4 and 5 ) as well as one or more leaf springs arranged one behind the other and connected to the slide 5, which are tensioned when the sealing strip is lowered by a trigger unit described below and, thanks to their restoring force, raise the sealing strip again. The slide 5 is moved in the longitudinal direction by means of an actuation button 50 when closing the door leaf, here the sliding door leaf.

The housing rail 1 can be fastened in a door groove in different ways. It preferably has a first groove 15 for receiving a fastening bracket 6 ( Figure 3a ) and to accommodate the slider 5. A second groove 16 arranged above the first groove 15 forms a space for receiving elements of a trigger unit 7.

The housing rail 1 is preferably arranged in an outer rail 4. The outer rail 4 is preferably also made of aluminum. It can be an independent component for attachment in a groove or on a lower end face of a door leaf T, in particular a sliding door. However, it can also be part of a metal door. The housing rail 1 and also the sealing strip of the outer rail 4 arranged therein preferably protrude on at least one end face, preferably on both end faces. This is for example in the Figures 2 and 3b recognizable.

In the Figures 3a and 3b the variant is shown in which the device according to the invention is arranged as a whole in a groove in the door leaf T and is held fixed therein. For this purpose, the mounting bracket is preferably arranged on one side. Fastening brackets 6 are preferably present on both end faces. An angle element 63 of the mounting bracket 6 preferably engages in the first groove 15 of the housing rail 1. However, the mounting bracket 6 can also be designed differently. In this embodiment, a base plate 60 of the mounting bracket 6 covers the housing rail 1, so that when the device is mounted, only one cavity A is exposed on the front side thanks to a recess 62 of the mounting bracket 6. In other embodiments, the base plate 60 is designed to be completely closed and has no recess 62.

In this example, the outer rail 4 is shortened at least on one end face, preferably on both end faces, and the groove of the door leaf is offset accordingly.

The sealing arrangement according to the invention can be mounted in the door groove in different ways. In the example shown here, the L-shaped outer rail 4 is preferably inserted into the door groove first and fixed in the door groove base by means of one or more screws 43. The remaining lowering seal, ie the housing rail 1 with the sealing strip and the lowering mechanism as well as the trigger unit 7, is then inserted and also screwed on using the front mounting brackets 6. The corresponding through opening has the reference number 61. The associated screw 90 is in Figure 3b shown.

The housing rail 1 and the outer rail 4 preferably both have a substantially U-shaped cross section. The cross section is preferably constant over the entire length of the rail, with the housing rail 1 preferably having additional recesses in one end region. The sealing strip also preferably has a cross-section that remains the same over its entire length.

The housing rail has two side walls, more precisely an inner side wall 10 and a middle side wall 11, and an upper web 12 connecting these two side walls 10, 11. The upper web 12 of the housing rail goes integrally into an upper web 12 the outer rail, which is provided with ventilation openings 14 and which ends at an outer side wall 13, which runs parallel to the inner and middle side walls 10, 11. The ventilation openings 14 preferably extend over the entire length of the housing rail 1.

The three side walls 10, 11, 13 mentioned are preferably of the same height. The outer side wall 13 forms part of the outer rail 4. The outer rail 4 also has a first side wall 40, a second side wall 41 that is shorter in comparison and an upper web 42 connecting these two side walls 40, 41 to one another. The end of the short second side wall 42 rests on the outer side wall 13 and forms a common wall with it. Like in the Figures 1 and 2 can be clearly seen, a cavity A is formed between the middle side wall 11 and the outer side wall 13, i.e. between the housing rail 1 or the sealing strip 2, 3 and the outer rail 4, which is partially closed at the top by the web 12. This cavity A forms the guide channel for triggering the lowering seal and has a connection to the air duct. The air duct has an upper part B, which is formed by the cavity between the upper webs 12, 42 of the housing rail 1 or the outer rail, and a side part C, which is formed by the cavity between the first side wall 40 of the outer rail 4 and the inner side wall 10 of the housing rail 1 is formed. The air circulation thus takes place from the first lower side of the sealing arrangement through the cavity A to the upper part B and to the side part C to the opposite second lower side of the sealing arrangement. This allows air to be exchanged from one long side of the sealing arrangement to the opposite long side, even when the sealing strip is lowered. This airway is in Figure 1 shown with three large arrows. The air flow can be in both directions.

The ones in the Figures 1 and 2 The recognizable arrangement of the housing rail 1, the outer rail 4, the cavity A and the air duct can also be achieved in another way. The solution shown here is just an example, but it can be produced easily and inexpensively.

In the cavity A and in the area above the first groove 15 there is a part of the trigger unit 7 of the lowering seal can be seen. When the door leaf is closed, the trigger unit 7 acts on the lowering mechanism, usually on the trigger button connected to the slide or on the slide directly, which automatically lowers the sealing strip 2, 3 mechanically. When the door leaf is opened, the trigger unit 7 releases the lowering mechanism again, the return springs can relax again and the sealing strip is automatically raised mechanically again. In other embodiments, the trigger unit acts directly on the sealing strip, which is thereby lowered and raised. In all of the figures shown here, the sealing strip 2, 3 is shown in the raised state. Other types of trigger mechanisms are possible.

In preferred embodiments, trigger units are used as described in WO 2017/190779 A1 , WO 2017/068173 A1 and WO 2017/191273 A1 are described. The trigger unit is most preferred according to WO 2017/191273 A1 with the two interlocking pivot elements 70, 71. The Figures 4 and 5 show the trigger unit according to WO'237, which can be used, for example, in the device according to the invention claimed here. A first of these pivoting elements 70, which forms a contact element, contacts a stationary contact surface when the door leaf is closed. Preferably, the contact surface is an upwardly directed support surface of a stationary contact module 72 and the contact element rests on this, rotating accordingly during the closing movement of the sliding door.

In the example shown here, the support surface has an inclined surface 720 and an adjoining horizontal surface 721. When the door leaf T is closed, the first pivoting element 70 first moves along the inclined surface 720 until it rests on the horizontal surface 721 when the sliding door is closed. The arrows in the Figures 4 and 5 denote the closing direction of the sliding door T. The rotational movement is transmitted to a second pivoting element 71, which forms a force transmission element. This presses an actuation button 50 attached to the slide 5. In the Figures 2 and 3b the first pivoting element 70 can be seen. A stop 74, here in the form of a pin, is preferably present to limit the pivoting movement of the first pivoting element 70. Furthermore, a guide lug 73 is preferably arranged on the stationary contact module 72, which when closing the sliding door the cavity A is inserted. This guide nose forms the guide means for guiding the sliding door. In this example it is arranged on the same component as the stationary part of the trigger unit. In other embodiments it is a separate component.

A first part of the trigger unit 7 is preferably held in the sealing arrangement and thus moves in the movable door leaf. A second part of the trigger unit 7 is used for activation and is arranged in a stationary manner. In this example it is a preferably upwardly directed support surface 720, 721.

As in Figure 2 is clearly visible, there are openings in the front end area of the device so that the corresponding parts of the trigger unit 7 can engage in the area of the housing rail 1 and act on the lowering mechanism. More precisely, there is a lateral through opening 18 in the middle side wall 11 of the housing rail 1 and an upper through opening 17 in the upper web 12, ie in the extension of the web 12 of the housing rail 1. Preferably, at least one opening 19 is also present in the inner side wall 10 of the housing rail 1 in order to store any parts of the trigger unit 7, here for example the second pivoting element 71.

In Figure 6 A variant of the exemplary embodiment described above is shown. The lowering seal is designed slightly differently. The remaining parts are the same. Here it can be seen how the arrangement according to the invention can be installed as an independent device in the underside of a door. It can also be seen how the stationary part of the trigger unit, ie the contact module 72 with the inclined surface and the guide lug 73, which is not visible here and which forms the guide means for the sliding door, are screwed to the floor S or to the threshold using screws 75. The contact module 72 is also in Figure 7 good to see.

In the Figures 8 and 9 Further exemplary embodiments are shown. The basic structure is the same as in the first embodiment. In Figure 8 However, a sound-damping element 8 is arranged in the upper part B of the air duct. In the embodiment according to Figure 9 There is also a first lateral sound-damping element 80 in the upper part B and A second lateral sound-damping element 81 is arranged in the side part C. The sound-damping elements 8, 80, 81 are preferably mats or strips made of a sound-absorbing or sound-absorbing material, which are glued to the inside of the outer rail 4 or otherwise connected to it.

The sealing arrangement according to the invention enables a sliding door to be designed with an air exchange, whereby the sliding door can be made relatively narrow.

REFERENCE SYMBOL LIST

1 Housing rail 7 Trigger unit 10 inner side wall 70 first pivoting element 11 middle side wall 71 second pivoting element 12 upper bar of the housing rail 72 Contact module 720 inclined surface 13 outer side wall 721 Horizontal surface 14 Ventilation openings 73 Guide nose 15 first groove 74 attack 16 second groove 75 screw 17 upper passage opening 8th Soundproofing element 18 side passage opening 80 first lateral 19 opening Soundproofing element 2 Support rail 81 second side 3 Sealing element Soundproofing element 30 leg 9 screw 31 arc 90 screw 32 Oblique lip A cavity 33 lower fastening rib b upper part of the air duct 34 upper fastening rib C lateral part of the air duct 4 Outer rail M Central axis of the 40 first side wall Support rail 41 second side wall R door frame 42 upper bridge S Floor 43 screw T door leaf 5 Slider 50 Operating button 6 mounting brackets 60 base plate 61 Passage opening 62 recess 63 leg

Claims (13)

1. Seal arrangement for sealing a gap between a door leaf of a sliding door and a floor,

   wherein the seal arrangement has a housing rail (1) for fastening in or on the door leaf, wherein the housing rail (1) has a downwardly open first groove with a first side wall (10), a second side wall (11) and a first web (12) connecting these two side walls (10, 11), and wherein a sealing strip (2, 3) for sealing the gap is arranged in the first groove,

   wherein the seal arrangement has a downwardly open cavity (A) which runs parallel next to the groove and which forms a guide channel for receiving a guide means of the sliding door, wherein the cavity (A) is designed to be at least partially open upwards and thus, when the gap is sealed, allows air circulation from one side of the sliding door to the opposite side of the sliding door via a lower side of the cavity (A) to the upper side of the cavity (A), wherein an air channel is present which, together with the cavity (A), allows the air circulation, wherein the air channel (B, C) is present on an outer side of the first side wall (10) and on an outer side of the first web (12), or wherein it runs rectilinearly outwards from the first web (12),

   characterized

   in that the cavity (A) is delimited by two opposite side walls (11, 13) and an upper web interconnecting the two side walls (11, 13), wherein the upper web and/or one of the two side walls (11, 13) have/has at least one upper through-opening (14, 17), wherein the at least one through-opening (14, 17) provides a connection from the cavity (A) to the air channel.
2. Seal arrangement according to Claim 1, wherein it has an outer rail (4) which is arranged spaced apart from the housing rail (1), wherein the air channel (B, C) runs between the housing rail (1) and the outer rail (4).
3. Seal arrangement according to either of Claims 1 and 2, wherein a lowering mechanism for raising and lowering the sealing strip (2, 3) relative to the housing rail (1) is present, wherein the lowering mechanism can be actuated by means of a triggering unit (7) which can be activated upon closing of the door leaf, and wherein the triggering unit (7) is at least partially arranged in the cavity (A).
4. Seal arrangement according to either of Claims 1 and 2, wherein a lowering mechanism for raising and lowering the sealing strip (2, 3) relative to the housing rail (1) is present, wherein the lowering mechanism can be actuated by means of a triggering unit (7) which can be activated upon closing of the door leaf, and wherein the triggering unit (7) is at least partially arranged in the air channel (B, C).
5. Seal arrangement according to either of Claims 3 and 4, wherein the triggering unit (7) has a pivotable contact element (70) and a force transmission element (71), wherein, upon closing the door leaf (T), the contact element (70) makes contact with a contact surface (720, 721) and moves along this contact surface (720, 721) during the closing movement of the door leaf (T), and wherein the pivoting movement of the contact element (70) brings about a movement of the force transmission element (71), as a result of which a lowering mechanism (5) of the seal arrangement is activated and the sealing strip (2, 3) is lowered.
6. Seal arrangement according to one of Claims 3 to 5, wherein the second side wall (11) of the housing rail (1) and/or the first web (12) of the housing rail (1) have/has a through-opening (17, 18) through which the triggering unit (7) acts on a lowering mechanism (5) of the sealing strip (2, 3).
7. Seal arrangement according to one of Claims 1 to 6, wherein the housing rail (1) has a second groove, which forms the cavity (A).
8. Seal arrangement according to Claim 7, wherein the housing rail (1) has a third side wall (13), and wherein the second groove is arranged between the second and third side wall (11, 13).
9. Seal arrangement according to Claim 8, wherein the upper web interconnects the second and the third side wall (11, 13).
10. Seal arrangement according to Claim 8, wherein the upper web of the cavity (A) has a plurality of through-openings (14) distributed over the length of the seal arrangement.
11. Seal arrangement according to either of Claims 9 and 10, wherein the first web (12) and the upper web are aligned with one another.
12. Seal arrangement according to one of Claims 9 to 11, wherein the first web (12) of the housing rail (1) and the upper web of the cavity (A) are formed together in one piece.
13. Seal arrangement according to one of Claims 2 to 12, wherein the housing rail (1) projects from the outer rail (4) at least on an end side.

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