EP2440732B1 - Door sealing system - Google Patents

Description

TECHNICAL AREA

The present invention relates to a door seal system according to the preamble of patent claim 1.

STATE OF THE ART

Door seals are used in areas where soundproofing and draft protection are desired. Likewise, they should conclude light-tight. Simple door seals are so-called sliding seals whose sealing lip or brush projects beyond a lower end face of the door downwards.

Further, lowerable door seals are known, which usually consist essentially of a downwardly open, U-shaped guide rail, a held in the guide rail and relative to this sliding sealing strip and a drive mechanism for lowering or lifting the sealing strip. Usually, the sealing strip automatically lowers when closing the door by an actuating rod is pushed back and sets the mechanical lowering mechanism in operation. However, it is also possible to provide a manually operable drive mechanism. Such door seals are made, for example EP 0 338 974 . DE 299 16 090 and EP 0 509 961 known. These door seals have proven themselves. In particular, the door seal according to EP 0 338 974 stands out for its particularly efficient sealing performance thanks to the one-piece sealing lip, the legs of which slide against the guide rail.

However, these seals can not be used in Minergie ^® houses with controlled ventilation. In such buildings, a ventilation system is present, which blows air into some of the rooms via ventilation slots in the wall, in the floor or in the ceiling and sucks them in other rooms via also arranged in the wall, in the ceiling or in the bottom drain holes. The aim of ventilation is to heat fresh air drawn in from outside by means of the exhausted air flowing outwards in order to minimize the energy required to heat the rooms. The air exchange between the rooms takes place over the doors, so that they may not close very tightly. Usually, a relatively large gap is left between the lower edge of the door and the floor. However, there is no sound insulation and light shimmers from one room to the other.

In EP 1 498 569 It was therefore proposed to provide pressure equalization openings in the sealing lip or in the guide rail. However, these are sometimes insufficient for adequate ventilation of the rooms.

In EP 1 936 097 is a door sealing system for use in Minergie ^® -Houses disclosed. The guide rail is arranged in an outer rail, wherein between these two rails, a continuous air duct extends from one side to the other side of the door. In the air duct sound damping elements in the form of deposits of rock wool or felt are arranged. These are intended to prevent any whistling noise caused by the air flow and to allow a certain soundproofing.

However, it has now been found that this seal seals against light and ensures a sufficient exchange of air between the rooms. However, the sound insulation can not meet high standards.

JP 2000-110455 discloses a door seal with an air duct and an arranged in the upper region of the air duct insulation element made of glass wool. The glass wool is held in position by a perforated plate.

DE 38 01 692 shows sealing strips for doors or windows in the form of hoses, which are filled with a material.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to provide a door seal system which ensures optimal sound insulation despite good ventilation.

This object is achieved by a door sealing system having the features of patent claim 1.

The inventive door seal system for attachment to a door has a door seal with a guide rail and a sealing element. The guide rail extends approximately over the entire width of the door. The guide rail has a substantially U-shaped cross-section. The sealing element is held in the guide rail and seals with the door closed a gap between the door and a floor or a ceiling. The guide rail has an outer side which is essentially formed by two approximately mutually parallel side walls and a connecting these two side walls together web. Furthermore, the door sealing system has an air duct, which ensures air circulation from a first side of the door to a second side of the door. The air duct runs along said outer side of the guide rail. According to the invention, a sound-absorbing resonator is present in the air duct.

The resonator is preferably formed by the door seal itself, for example, by the guide rail or an outer rail surrounding the guide rail.

This sound-absorbing resonator is formed in a preferred embodiment by holes in the guide rail and / or the outer rail. The holes can be present in each case in the web and / or in one of the side walls and / or in both side walls. The holes can all be the same size or they can be of different sizes. They may be evenly distributed over the entire surface of the web or sidewalls, or they may be arranged in one or more rectilinear rows or other patterns.

Preferably, the holes are covered with a non-woven or other sound-absorbing or sound-damping material. These sound-damping elements can be glued to the outer rail or on the guide rail, be positively slipped over this or otherwise held in position. They can be arranged on the side facing the air duct or facing away from the guide rail or outer rail.

In another preferred embodiment, the resonator is formed by a cavity, which is connected via a connection opening with the remaining air channel. The connection opening is many times smaller compared to the cavity.

Such sound-absorbing resonators in the form of cavities or perforated plates are known in the art under the name Helmholtz resonators.

According to the invention, it is also possible to combine several such resonators with one another in the air duct. Thus, both the outer rail as well as the guide rail can be provided with holes. Furthermore, in addition to these holes, one or more cavities with connecting holes may be provided on the outer rail and / or on the guide rail.

The inventive door seal may additionally be provided with at least one fire protection element. For example, a material may be arranged in the air duct and / or in the sealing strip and / or on at least one of the sound damping elements, which increases its volume in case of fire and thus closes the air duct and / or the slot between door and floor. It is also possible to manufacture the sound damping element wholly or partly from such a material.

The door seal system preferably has an automatically and mechanically lowerable door seal. For example, a door seal according to is particularly suitable EP 0 338 974 , However, other types of door seals may also be used, such as other types of lowerable door seals, magnetic seals, and slip seals.

Further embodiments are described in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Figur 1

eine perspektivische Explosionsdarstellung eines vorderen Teils eines erfindungsgemässen Türdichtungssystems in einer ersten Ausführungsform;

Figur 2

eine Ansicht des Türdichtungssystems gemäss Figur 1 von vorne;

Figur 3

eine weitere perspektivische Explosionsdarstellung der Türdichtung gemäss Figur 1;

Figur 4

eine Ansicht des erfindungsgemässen Türdichtungssystems in einer zweiten Ausführungsform;

Figur 5

eine perspektivische Explosionsdarstellung eines vorderen Teils des Türdichtungssystems gemäss Figur 4;

Figur 6

eine Ansicht des erfindungsgemässen Türdichtungssystems in einer dritten Ausführungsform;

Figur 7

eine Ansicht des erfindungsgemässen Türdichtungssystems in einer vierten Ausführungsform;

Figur 8

eine Ansicht des erfindungsgemässen Türdichtungssystems in einer fünften Ausführungsform und

Figur 9

eine Ansicht einer weiteren Ausführungsform des erfindungsgemässen Türdichtungssystems.

Preferred embodiments of the invention will now be described with reference to the drawings which are given by way of illustration only and not by way of limitation are to be interpreted. In the drawings show:

FIG. 1

an exploded perspective view of a front part of an inventive door seal system in a first embodiment;

FIG. 2

a view of the door sealing system according FIG. 1 from the front;

FIG. 3

a further perspective exploded view of the door seal according to FIG. 1 ;

FIG. 4

a view of the inventive door seal system in a second embodiment;

FIG. 5

an exploded perspective view of a front part of the door sealing system according to FIG. 4 ;

FIG. 6

a view of the inventive door seal system in a third embodiment;

FIG. 7

a view of the inventive door seal system in a fourth embodiment;

FIG. 8

a view of the inventive door seal system in a fifth embodiment and

FIG. 9

a view of another embodiment of the inventive door seal system.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the FIGS. 1 to 3 a first preferred embodiment of the inventive door seal system is shown. This door seal system is in a lower or upper groove of a door T is inserted and fixed in this in a known manner. As attachment types, in particular those which are in the EP 1 936 097 are described. The door seal system may also be mounted on the lower or upper end side of the door on the front side, as for example in EP 1 277 910 is described.

The door seal system comprises a door seal with a guide rail 1 and a sealing strip 3, which in the closed state of the door rests sealingly on the floor or the ceiling and closes a gap between the door and floor or ceiling. The seal may be formed as a sliding seal. Preferably, however, it is designed as an automatically lowerable and liftable seal. In this case, it preferably comprises a support rail 2 and an actuating mechanism 4. The sealing strip 3 is held on the support rail 2. The carrier rail 2 is arranged in the guide rail 1 and relative to this automatically raised and lowered by means of the actuating mechanism. The mechanism 4 preferably comprises an actuating button 40 which laterally projects the seal (see FIG. 1 ) and which is pressed in when closing the door. This operating knob 40 is connected to spring elements of the lowering mechanism, which in FIG. 3 are visible. These spring elements press the carrier rail 2 and thus also the sealing strip 3 from the guide rail 1 when closing the door. If the door is opened, the carrier rail 2 and the sealing strip 3 are raised again thanks to the spring elements. Between actuator mechanism 4 and support rail 2 deposits 20 are present. These are preferably made of felt.

The guide rail 1 preferably has a substantially U-shaped cross-section with two approximately parallel to each other extending side walls 14 and one of these side walls 14 interconnecting web 13. The guide rail 1 and the support rail 2 are preferably extruded profiles made of aluminum. The sealing strip 3 may be formed in one or more pieces and preferably consists of an elastomeric material, in particular of silicone or rubber.

As in FIG. 2 recognizable, the door seal 1, 2, 3, 4 is arranged in an outer rail 7. This outer rail 7 is preferably made of an extruded profile, in particular of aluminum. Also, it has a substantially U-shaped cross-section, with its U is open on the same side as that of the guide rail 1. Also, it has two approximately mutually parallel side walls 74 and a connecting web 73. Its length corresponds to the length of the guide rail 1 or it is slightly shorter.

Between the outer rail 7 and the guide rail 1, there is a clearance along the side walls 14 and the web 13 of the guide rail 1, i. a free space, available. This forms an air channel L, which connects the one door side with the other side of the door. As a result, an air exchange even with the door closed and lowered sealing strip 3 is possible. The sealing strip 3 is located neither in the lowered nor in the raised state within the air channel L, so that it runs completely separated from the sealing strip 3.

According to the invention, a sound-absorbing resonator is now arranged in this air duct L. In this example, the seal or the guide rail forms the resonator. This is achieved by providing the guide rail 1 with holes 10. The holes 10 are in this example in both side walls 14, and they extend straight over approximately the entire length of the guide rail 1. Preferably, they are arranged in the upper region of the side walls 14 adjacent to the web 13.

However, the holes 10 may also be arranged only in a single side wall 14. Furthermore, they may alternatively or additionally be provided in the web 13. You can also spread over the entire surface or be arranged in a different pattern than shown here. The holes 10 are preferably continuous to provide communication with the interior of the seal. They are preferably round. However, they can also have a different cross-sectional area. Preferably, all holes 10 have the same cross-sectional area. However, they can also have different cross-sectional areas. Typical diameters of the holes 10 are 5 to 10 mm.

In order to achieve an optimal sound-absorbing effect, the resonator with a or a plurality of sound attenuation elements 5, 6 provided. In this example, a first sound-damping element 5 is present in the form of an insulating fleece. This first sound-damping element 5 covers at least the perforated region of the guide rail 1. Preferably, it comprises both side walls 14 and the web 13 of the guide rail 1 over its entire length. In a preferred embodiment, it is glued to the guide rail 1.

Alternatively or additionally, a second sound-damping element 6 may be arranged in the air duct L. In this case, the air duct L is preferably not completely closed by the sound attenuation element, but open to the air circulation passage area from one side to the other side of the door is kept free. This second sound attenuation element 6 is on the inside of the outer rail 7, i. at the air duct L side facing arranged. It is preferably attached to the outer rail 7, for example, glued, and / or it is positively held or clamped therein.

In this example, the second sound attenuation element 6 is designed substantially thicker than the first sound attenuation element 5. It is preferably made of a felt, rock wool or other suitable sound-absorbing material.

It is also possible to design both sound damping elements 5, 6 of equal thickness, wherein both are designed as a thin fleece or self-supporting. In the second case, they preferably have a thickness of 2 to 7 mm.

In the FIGS. 4 and 5 a second preferred embodiment is shown. The same parts are provided with the same reference numerals as in the embodiment according to the FIGS. 1 to 3 , Here, the guide rail 1 is formed with closed side walls 14 and closed web 13 and has no holes 10. On the other hand, the outer rail 7 is part of the resonator and now has holes 70. The arrangement and size of the holes 70 may be selected differently, as in the first example. The illustrated example is not intended to be limiting. Again, the resonator has at least one sound attenuation element. Here again is a self-supporting second sound attenuation element 6 with u-shaped cross-section available. In contrast to the first example, however, it is here on the outside of the outer rail 7, that is arranged on the side facing away from the air channel L side of the outer rail 7. However, it could turn an Dämmvlies or a thicker compared to the nonwoven self-supporting sound damping material disposed on the inside of the outer rail 7, in particular be glued. Furthermore, the guide rail 1 could be provided with an insulating fleece or a self-supporting, compared to the fleece thicker sound attenuation element.

The embodiments according to the Figures 1 and 2 can be combined, so that both the outer rail 7 as well as the guide rail 1 with holes 10, 70 are provided.

In the FIG. 6 another embodiment is shown. Here, a cavity 11 is formed over the web 13 of the guide rail 1. The side walls of the cavity 11 are preferably aligned with the side walls 14. The cavity 11 has a rectangular or square cross-section. It preferably extends over the entire length of the guide rail 1. Preferably, it is a part of the guide rail 1 and formed integrally with the rest of the part. The web 13 preferably forms a lower wall of the cavity 11.

The cavity 11 has a connection opening 12. The connection opening 12 is preferably a slot which extends over the entire length of the guide rail 1. However, it can also be formed from a plurality of holes distributed over the length of the guide rail 1 or short slots. The clear width of the opening, or the cross-sectional area of the slot or the common total area of the holes, is many times smaller than the cavity. The volume which encloses the connection opening 12 is many times smaller than that of the cavity 11.

The connection opening 12 is opened with respect to the air channel L. In this example, the connection opening 12 is located at an upper, the web 13 opposite side of the cavity 11. However, it can also be arranged on a side wall 14 with the aligned wall.

This cavity 11 with its connection opening 12 forms here the sound-absorbing resonator.

Preferably, in turn, sound attenuation elements are present. Shown here is the self-supporting second sound attenuation elements made of felt, rock wool or other suitable material, which is arranged on the inside of the outer rail 7, preferably fixed. Further or alternative sound attenuation elements can also be used in this example.

In FIG. 7 a fourth embodiment is shown. Here, the outer rail 7 has a cavity 71 with a connection opening 72. The web 73 forms an upper wall of the cavity 71 and thus extends below it. By the way, this applies on the basis of FIG. 6 Said. In particular, the connecting opening 72 can in turn here also be formed by a slot extending over approximately the entire length of the outer rail 7 or a plurality of holes or short slots distributed over this length. Again, a sound attenuation element 6 is again arranged on the inside of the outer rail 7. It can also be arranged on the outside.

In FIG. 8 a fifth embodiment is shown. Here now has the web 73 of the outer rail 7, the connection opening 72. The groove N of the door T is formed deeper than the outer rail 7, so that between the web 73 and the upper edge of the groove N, in turn, a cavity 71 is present. This cavity 71 is in turn connected via the connection opening 72 with the air channel L and serves as a sound-absorbing resonator. According to FIG. 8 is in the air duct L no silencing element 5, 6 available. However, the air channel L may in turn be provided with such elements, but preferably without being closed by them.

In the embodiments according to the FIGS. 6, 7 and 8 is in the cavity 11, 71 preferably no sound-damping material is arranged. However, it may also be partially or entirely filled with such a material.

In FIG. 9 another embodiment is shown. Here, the second sound-damping element 6 has two shortened ends, which do not extend to the lower bottom-side end face of the door N. At these two free ends of the U-shaped sound-damping element 6, a fire protection strip 8 is rather arranged. Preferably, it is welded to the element 6, glued to this or made in one piece with it. It preferably extends over the entire length of the door or over the entire length of the element 6. Preferably, the fire protection strip 8 made of expanded graphite or other intumescent material which increases in heat or heat its volume, for example, foams.

Alternatively or additionally, a fire protection insert 9 is arranged in the sealing strip 3. It may be attached to the support rail 2, e.g. glued or screwed, or it can be loosely inserted into the sealing strip 3. This fire protection insert 9 extends over the entire length of the door T or the sealing strip 3. Also, it is preferably made of expanded graphite or other intumescent material which increases its volume in heat or heat, for example, foams.

Fire protection strip 8 and fire protection insert 9 increase their volume at elevated temperatures, e.g. from 180 ° Celsius, and thus close the door groove, so that no smoke or fire can penetrate.

The embodiments according to the FIGS. 6, 7 and 8 can be with each other and with the embodiments according to the FIGS. 1 to 5 combine. Any combinations with the embodiment according to FIG. 9 are with everyone FIGS. 1 to 8 possible.

The inventive door seal system allows a light-tight and soundproof closure and still allows a good air circulation from one side of the door to the other side. LIST OF REFERENCE NUMBERS 1 guide rail 6 second sound attenuation element 10 hole 11 cavity 12 connecting opening 7 outer rail 13 web 70 hole 14 Side wall 71 cavity 72 connecting opening 2 support rail 73 web 20 inlay 74 Side wall 3 sealing strip 8th Firebreaks 4 actuating mechanism 9 Fire protection insert 40 actuating button T Türnut 5 first L air duct Schalldämmpfungselement N groove

Claims (15)

1. A door sealing system for fastening to a door, said door sealing system having a door seal, wherein the door seal has a guide rail (1) and a sealing member (3), wherein the guide rail (1) extends approximately over the entire width of the door and wherein it has a substantially u-shaped cross section, and wherein the sealing member (3) is held in the guide rail (1) and, when the door is closed, seals a gap between the door and a floor or a ceiling, wherein the guide rail (1) has an outer side which is formed substantially by two lateral walls (14), which extend approximately parallel with respect to each other, and a web (13), which connects said two lateral walls (14) to each other, wherein the door sealing system has an air channel (L) which ensures air circulation from a first side of the door to a second side of the door and wherein the air channel (L) extends along the aforementioned outer side of the guide rail (1), characterized in that a sound absorbing resonator (10, 70, 11, 71) is present in the air channel(L).
2. The door sealing system as claimed in claim 1, wherein the resonator is formed by the door seal.
3. The door sealing system as claimed in one of claims 1 or 2, wherein the resonator includes the guide rail (1), wherein at least one of the lateral walls (14) and/or the web (13) of the guide rail (1) are provided with holes (10).
4. The door sealing system as claimed in claim 3, wherein there is a first sound dampening member (5) present which covers the regions of the guide rail (1) provided with holes (10).
5. The door sealing system as claimed in claim 4, wherein the first sound dampening member (5) is arranged on the outer side of the guide rail (1) and the air channel (L) extends on an outer side of the first sound dampening member (5) remote from the guide rail (1).
6. The door sealing system as claimed in one of claims 1 to 5, wherein the sealing member (3) is automatically lowerable with reference to the guide rail (1) when the door is closed and is automatically raisable when the door is opened.
7. The door sealing system as claimed in one of claims 1 to 6, wherein it also includes an outside rail (7) with two lateral walls (74) and a web (73) which connects said lateral walls (74) to each other, wherein the guide rail (1) is arranged in said outside rail (7) and wherein the air channel (L) extends between the guide rail (1) and the outside rail (7).
8. The door sealing system as claimed in claim 7, wherein at least one of the lateral walls (74) and/or the web (73) of the outside rail (7) is provided with holes (70).
9. The door sealing system as claimed in claim 8, wherein there is a second sound dampening member (6) present which covers the regions of the outside rail (7) provided with holes (70).
10. The door sealing system as claimed in one of claims 1 to 9, wherein the resonator has a cavity (11, 71) which communicates with the air channel (L) by means of a connecting opening (12, 72), wherein the connecting opening (12, 72) surrounds a volume which is substantially smaller compared to the volume of the cavity (11, 71).
11. The door sealing system as claimed in claim 10, wherein the cavity (11) is arranged on the guide rail (1).
12. The door sealing system as claimed in claim 11, wherein the cavity (11) extends above the web (13) of the guide rail (1), wherein the web (13) forms a wall of the cavity (11).
13. The door sealing system as claimed in claim 6 and one of claims 10 and 11, wherein the cavity (71) is arranged on the outside rail (7).
14. The door sealing system as claimed in claim 13, wherein the connecting opening (72) is arranged in the web (73) of the outside rail (7) or wherein the cavity (71) is arranged below the web (73) of the outside rail (7), wherein the web (73) forms a wall of the cavity (71).
15. The door sealing system as claimed in one of claims 1 to 14, wherein there is at least one fire protection member present which, in the event of a fire, increases its volume and closes the air channel (L) and/or a slot between the door and the floor.

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