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(11) | EP 0 854 265 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
Fire-resistant sliding door Feuerfeste Schiebetür Porte coulissante coupe-feu |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
[0002] Sliding doors of the general type outlined above are used in many different applications in and on. buildings and premises of the most varied nature, their purpose being to form entrances to and exits from for instance shopping markets and commercial centres, shops, offices, stair openings and the like and/or to serve as passages-through in e.g. corridors, underground walkways, and the like. In addition to serving, in their closed and locked position, as a protection against unauthorised entrance sliding doors also serve as a lock for reducing air draught and inflow/outflow of cold/warm air.
[0003] An increasingly common requirement nowadays on doors of various kind, including sliding doors serving in the positions outlined above, is that it should be possible to close them in case of fire and that at the same time they should be capable of withstanding the effects of such fire for a predetermined length of time while maintaining their separating function and in doing so prevent the fire and the smoke and hot gases generated thereby from spreading.
[0004] US-A-2 485 296 discloses a sliding door essentially according to the preamble of claim 1. However the gasket comprises on the other hand a further metal profile section comprising a flange that is arranged, upon closing of the door, to be moved into fire-resisting and sealing abutment against the side walls of the outwardly open, essentially U-shaped channel of the strip seal.
[0005] The subject-matter of claim 1 differs from the sliding door known from US-A-2 485 296 in that the further metal profile section is of an essentially U-shaped configuration comprising a further metal profile section web portion and two further metal profile section flanges. The further metal section profile flanges are connected, by means of their two free ends, to the front edge of the second door leaf.
[0006] DE 26 25 270A discloses a folding door with a gasket between the meeting front edges of the door leaves providing the through-passage opening. The gasket comprises on the one hand a strip seal according to the preamble of claim 1. On the other hand, a metal profile section of an essentially U-shaped configuration is provided, comprising a metal profile section web portion and two metal profile section flanges. The metal section profile flanges are connected, by means of their two free ends, to the front edge of the second door leaf.
[0007] The main object of the present invention is to provide a sliding door according to the preamble of claim 1, which door is sufficiently fire-resistant to be classified as being of fire resistance class.
[0008] A further object of the present invention is to provide a sliding door, in which the strip seal is maximally protected against the effects of fire.
[0010] Neither US-A-2 485 296 nor DE 26 25 270A discloses a sliding door with a strip seal and two protective flanges whereby the flanges project from the front edge by a distance which is slightly shorter than the height of the strip seal. This allows slight compression of the seal ensuring that the door being in its closed position does not allow smoke to pass through the door gap. At the same time the seal is maximally protected against the effects of fire.
[0011] The invention will be described in closer detail in the following with reference to the accompanying drawings showing a presently particularly preferred embodiment. In the drawings:
Fig. 1 is a front view of a sliding door in accordance with the preferred embodiment of the invention,
Fig. 2 is a view as seen from above of the sliding door of Fig. 1,
Fig. 3 is a cross-sectional view taken on line A-A of Fig. 1,
Fig. 3A is an enlarged view of the encircled area I of Fig. 3,
Fig. 4 is a cross-sectional view taken on line B-B of Fig. 1,
Figs 4A and 4B are enlarged views of the encircled areas II and III, respectively, of Fig. 4,
Fig. 5 is a sectional view similar to that of Fig. 4 but showing the door leaf of the sliding door in an open position, and
Fig. 5A is an enlarged view of the encircled area IV of Fig. 5.
[0012] The principal components of the sliding door in accordance with the invention, generally designated by reference 1 in the drawing figures, are a door frame 2 and two door leaves 3 and 4. Each of the frame 2 and the door leaves 3, 4 comprises essentially vertical and horizontal interconnected metal profile sections 5 of steel or other fire-resistant material, and surface elements 6 enclosed/framed by said metal sections 5.In accordance with the embodiment shown and described herein the surface elements 6 consist of fire-retardant sheets of glass having a thickness of 21 mm, for instance PYROSTOP® glass. The fire-retardant glass sheets could of course be thicker or thinner than 21 mm, as required or requested. As an alternative or a supplement to the fire-retardant glass sheets forming the surface elements 6 at least some of them could consist of sheet metal plates or panels of other fire-resistant material.
[0013] When fire-retardant glass sheets are used as the surface elements 6 they are mounted in the frame 2 and the respective door leaves 3 and 4 by means of glazing beads 7 which are secured to their associated metal profile section 5 by means of fasteners, such as fastening screws 8. It should be appreciated that the glazing beads 7 could be mounted on the metal profile sections 5 in other ways than by means of fasteners, such as by welding, glueing or the like. The fire-retardant glass sheets 6 are also secured with the aid of bottom and top seals 9 and 10 of a fire-resistant material, preferably a sealing compound of silicone or the like which is difficult to ignite. Intermediate the bottom and top seals 9 and 10 glazing strips 11 are provided, also of a fire-resistant material.
[0014] As appears most clearly from Figs 4 and 5, the door leaves 3 and 4 are suspended in alignment from the door frame 2 in such a manner as to be displaceable forwards and backwards by means of a sliding door opener, generally designated by numeral reference 12 and not described in closer detail herein. More precisely, the door leaves 3, 4 are displaceable forwards and backwards betweeen a closed position C, see Fig. 4, wherein their essentially vertical opposed front edges 13 and 14 abut against each other via a gasket generally designated by 15 to be described in more detail in the following, serving to seal a through-traffic opening 16 in the frame 2, and an open position D, see Fig. 5, to allow passage-through through the opening 16.
[0015] According to the preferred embodiment described and shown herein the gasket 15, see Figs 4 and 4A, comprises at least one essentially vertical strip seal 17 of essentially U-shaped configuration, the web portion 18 of which is connnected to the front edge 13 of one 3 of the door leaves while the two flanges 19 of the seal are directed outwards, towards the front edge 14 of the opposite door leaf 4, the free ends 20 of said flanges arranged, upon closing of the door leaves 3 and 4, to be moved into fire-resisting and sealing abutment against the front edge 14 of said opposite one 4 of the door leaves. The strip seal 17 is made from a material which is well adapted for its purpose, such as e.g. chloroprene rubber or the like. A longitudinal groove 21 is formed in the web portion 18 of the strip seal 17 for reception therein of at least one elongate support 22, in this case preferably in the shape of a flat bar of steel, and fasteners, not shown, such as e.g. screws, pop rivets or the like, may be inserted through holes, not either shown, formed in the support 22 and through the part of the web portion 18 that is turned towards the associated front edge 13 so as to be secured to said front edge in order to fasten the strip thereto.
[0016] In addition to the strip seal 17 the gasket 15 also comprises at least one metal profile section 24, see Figs 4, 4A and 5, preferably made from steel or other fire-resistant material. The metal profile section 24 has an essentially U-shaped configuration, the two flanges 25 of which are connected, by means of their two free ends 26, to the front edge 14 of the other door leaf 4 opposite the strip seal 17 and the web portion of which 27 is arranged, upon closing of the door leaves, to be moved together with the flanges 25 into fire-resisting and sealing abutment against the side walls 28 of the outwardly open, essentially U-shaped channel 29 of the strip seal 17, which channel 29 is delimited by the web portion 18 and the flanges 19 of the seal 17. The free ends 26 of the flanges 25 of the metal profile section 24 are connected to the front edge 14 of the associate door leaf 4, e.g. by tack welding or the like or by means of suitable fasteners, not shown.
[0017] On the front edge 13 of the door leaf 3 to which the web portion 18 of the strip seal 17 is secured in the manner described in the aforegoing, at least two protective flanges 30 are provided, said protective flanges projecting towards the front edge 14 of the opposite door leaf 4 and preferably they are made from steel and suitably formed integrally with the associated metal profile section 5. The strip seal 17 is placed between these protective flanges 30, said protective flanges 30, as appears from Figs 4 and 5, resting on the external faces of the outwardly directed flanges 19 of the strip seal 17 in order to protect as far as possible the strip seal 17 against the effects of fire. To maximize the protection the protective flanges 30 preferably are arranged to project from the associated front edge 13 by a distance E which is only slightly shorter, say by about 1 mm, than the height F of the strip seal 17.
[0018] In addition to the above-described gasket 15 disposed between the front edges 13, 14 of the door leaves 3, 4, a gap sealing member 33 is provided in the gap G between the facing sides 31, 32 of the frame 2 and the door leaves 3, 4, respectively, see Figs 3, 3A, 4 4B, said member sealing the gap G in the closed position C in a fire-resisting manner to be described in closer detail below.
[0019] In accordance with the embodiment described and shown herein the gap sealing member 33 comprises at least one vertical strip seal 34, see Figs 4 and 4B, which like the strip seal 17 of the gasket 15 could be made from chloropene rubber or a similar material. As appears from the drawing figures, the strip seal 34 has a generally U-shaped configuration, and in a manner to be described in more detail in the following the web portion 35 of the U-shaped seal is joined to the side 32 of the respective door leaf 3, 4 that is turned towards the frame 2, in the area adjacent the rear edge 36 of the respective door leaf, whereas the two flanges 37 of the seal are directed towards the frame, their free ends 38 sealingly abutting against the frame 2 in the closed position C of the door leaves 3, 4. In combination with the vertical strip seal 34 the gap seal 33 comprises at least one further vertical strip seal 39, see Fig. 4B, which like the strip seals 17 and 34 may be made from chloropene rubber or a similar material. Like strip seal 34, strip seal 39 has an essentially U-shaped configuration the web portion 40 of which is connected to the side 31 of the frame 2 that is turned towards the respective door leaf 3, 4, in the area of the opening 16 in the frame 2, whereas the two flanges 41 of the seal are directed towards the corresponding door leaf 3, 4, their free ends 42, in the closed position of the door leaves 3, 4, sealingly abutting against the corresponding door leaf in the area adjacent the rear edge thereof and interiorly of the strip seal 34 of the corresponding door leaf 3, 4 as seen in the closing direction.
[0020] As a supplement to the strip seals 34 and 39 above the gap seal 33 also comprises, in accordance with the shown and described embodiment, a horizontal strip seal 43, see Figs 3 and 3A, also preferably made from chloropene rubber. The strip seal 43 essentially is of U-shaped configuration including a web portion 44 which is connected to the side 32 of the respective door leaf 3, 4 that is turned towards the frame 2, in the area adjacent the upper edge 45 of the respective door leaf, whereas the two flanges 46 of the seal are directed towards the frame, their the free ends 47 sealingly abutting against the frame 2 in the closed position C of the door leaves 3, 4. To complete the gap seal member 33, finally, also a horizontal strip seal 48, likewise preferably of chloropene rubber, is provided. Also this strip seal has an essentially U-shaped configuration, its web portion 49 being connected to the side 31 of the frame 2 that is turned towards the respective door leaf 3, 4 in the area adjacent and above the opening 16 in the frame 2, whereas its two flanges 50 are directed towards the respective door leaf 3, 4, the free ends 51 of of the flanges, in the closed position C of the door leaves 3, 4, sealingly abutting against the corresponding door leaf 3, 4 in the area adjacent the upper edge 45 thereof and below the strip seal 43 connected to the respective door leaf.
[0021] In accordance with the preferred embodiment the above-described gap strip seals 34, 39, 43 and 48 mounted on respectively the door leaves 3, 4 and the frame 2 are in abutting relationship in the closed position C of the door leaves, by means of the external faces 52 of their oppositely directed, facing flanges 37, 41, 46 and 50. As appears from Figs 3-5, an elongate support 55 is provided in accordance with the referred embodiment on the bottom of the outwardly open, essentially U-shaped channel 54 delimited by the web portions 35, 40, 44, 49 and the flanges 37, 41, 46, 50 of the respective strip seals 34, 39, 43, and 48, said support 55 preferably being in the form of a fire-resistant flat metal bar, preferably of steel. Fasteners, not shown in the drawings, such as e.g. screws, pop rivets or the like, may be inserted through holes, not either shown, formed in the supports and the web portions 35, 40, 44, 49, respectively, for secure attachment to the respective door leaf 3, 4 and to the frame 2.
[0022] At least one of the gap strip seals 34, 39, 43, 48 on the respective door leaf 3, 4 and the frame 2 - in accordance with the shown and described embodiment the vertical gap strip seals 34 on the door leaves 3, 4, see Fig. 4B - has a fire strip 56 associated therewith, for example of type INTUMEX® L which is a fire-expandable silicone strip seal. The fire strip seal or seals 56 expand(s) when exposed to fire after closing of the door leaves 3, 4 in response to the sounding of a fire alarm, in order to prevent fire, smoke and hot gases from spreading by way of the gap G. For the same reason, a fire strip 59 corresponding to strip 56 may be provided along the lower edges of each door leaves 3, 4, see Fig. 3, laterally of the associated floor guides 58 controlling the door leaves 3, 4 in a manner known per se by means of the lower door-leaf edges 57. Accordingly, also this fire strip 56 is arranged to expand upon fire exposure of the closed doors 3, 4 in order to prevent fire smoke and hot gases from spreading by way of the bottom gap I between the support or floor 60 and the respective lower edges 57.
[0023] It should be appreciated that the invention must not be regarded as limited to the above described embodiments illustrated in the drawing figures but that it may be modified in a variety of different ways within the scope of the claimed protection. The number of door leaves 3, 4 obviously could be increased or lowered and for example amount to four door leaves interconnected in pairs, in case the opening 16 in the frame 2 is very large. In addition, an arrangement comprising two pairs of door leaves positioned in parallel juxtaposed relationship and opening and closing in synchrony or with some delay with respect to one pair, is likewise conceivable. Also, the number of strip seals may vary, as may also their positions and shapes, which is, of course, equally true as regards the fire-expandable fire strips 56 and 59.
1. A sliding door (1) comprising a door frame (2) and at least two door leaves (3, 4),
each one of said frame and said door leaves comprising interconnected metal profile
sections (5) forming the right-angled frame (2) and surface elements (6) framed by
said profile sections (5), said door leaves (3,4) being suspended in mutually aligned
relationship from the door frame (2) and being displaceable forwards and backwards
in the door-frame plane parallel to one of the dimensions of the frame (2) between
a closed position (C) , wherein the confronting front edges (13,14) of said door leaves
abut against one another via a gasket (15) in order to close a through-passage opening
(16) in said frame (2), and an open position (D) allowing passage-through by way of
said opening (16), the gasket (15) comprising on the one hand at least one strip seal
(17) of an essentially U-shaped configuration comprising a strip seal web portion
(18) and two strip seal flanges (19), the strip seal web portion (18) being connected
to the front edge (13) of a first door leave (3) while the two strip seal flanges
(19) being directed outwards, towards the front edge (14) of an opposite second door
leaf (4), the strip seal (17) thus projecting a height (H) over the front edge (14),
the free ends (20) of said strip seal flanges (19) arranged, upon closing of the door,
to be moved into fire-resisting and sealing abutment against the front edge (14) of
said opposite second door leaf (4), and on the other hand at least one further metal
profile section (24) of an essentially U-shaped configuration comprising a further
metal profile section web portion (27) and two further metal profile section flanges
(25), the two further metal profile section flanges (25) are connected, by means of
their two free ends (26), to the front edge (14) of the second door leaf (4) opposite
the strip seal and the further metal profile section web portion (27) is arranged,
upon closing of the door, to be moved together with the further metal profile section
flanges (25) into fire-resisting and sealing abutment against the side walls (28)
of an outwardly open, essentially U-shaped channel (29) of the strip seal (17), which
channel (29) is delimited by the strip seal web portion (18) and flanges (19), at
least two protective flanges (30) being provided on the front edge (13) of the first
door leaf (3) to which the strip seal web portion (18) is secured and projecting from
said strip seal web portion towards the front edge (14) of the second door leaf (4),
said strip seal (17) being disposed between said protective flanges (30), the latter
resting on the external faces of the strip seal flanges (19) in order to protect as
far as possible the strip seal (17) against the effects of fire, characterised in that said protective flanges (30) project from the associated front edge (13) by a distance
(E) which is only slightly shorter than the height (H) of the strip seal (17).
2. A sliding door as claimed in claim 1, wherein a sealing member (33) is provided in
a gap (G) between the facing sides (31, 32) of the frame (2) and the door leaves (3,
4, respectively), said member sealing the gap (G) in the closed position (C) in a
fire-resisting manner.
3. A sliding door as claimed in claim 2, wherein the gap sealing member (33) comprises
on the one hand at least one first gap strip seal (34) having a generally U-shaped
configuration comprising a first gap strip seal web portion (35) and two first gap
strip seal flanges (37), the first gap strip seal web portion (35) being connected
to the side (32) of the respective door leaf (3, 4) facing the frame (2), in the area
adjacent the rear edge (36) of the respective door leaf, whereas the two first gap
strip seal flanges (37) are directed towards the frame (2), the free ends (38) of
the first gap strip seal flanges (37) sealingly abutting against the frame (2) in
the closed position (C) of the door leaves (3, 4), and on the other hand at least
one second gap strip seal (39) having an essentially U-shaped configuration comprising
a second gap strip seal web portion (40) and two second gap strip seal flanges (41),
the second gap strip seal web portion (40) being connected to the side (31) of the
frame (2) facing the respective door leaf (3, 4), in the area of the opening (16)
in the frame (2), whereas the two second gap strip seal flanges (41) being directed
towards the corresponding door leaf (3, 4), the free ends (42) of the second gap strip
seal flanges (41), in the closed position of the door leaves (3, 4), sealingly abutting
against the corresponding door leaf in the area adjacent the rear edge (36) thereof
and interiorly of the first gap strip seal (34) of the corresponding door leaf (3,
4) as seen in the closing direction.
4. A sliding door as claimed in claim 3, wherein the gap sealing member (33) also comprises
on the one hand at least one third gap strip seal (43) of an essentially U-shaped
configuration comprising a third gap strip seal web portion (44) and two third gap
strip seal flanges (46), the third gap strip seal web portion (44) being connected
to the side (32) of the respective door leaf (3, 4) facing the frame (2), in the.
area adjacent the upper edge (45) of the respective door leaf, whereas the two third
gap strip seal flanges (46) being directed towards the frame, the free ends (47) of
the third gap strip seal flanges (46) sealingly abutting against the frame (2) in
the closed position (C) of the door leaves (3, 4), and on the other hand at least
one fourth gap strip seal (48) having an essentially U-shaped configuration comprising
a fourth gap strip seal web portion (49) and two fourth gap strip seal flanges (50),
the fourth gap strip seal web portion (49) being connected to the side (31) of the
frame (2) facing the respective door leaf (3, 4) in the area adjacent and above the
opening (16) in the frame (2), whereas the two fourth gap strip seal flanges (50)
being directed towards the respective door leaf (3, 4) the free ends (51) of the fourth
gap strip seal flanges, in the closed position (C) of the door leaves (3, 4) sealingly
abutting against the corresponding door leaf (3, 4) in the area adjacent the upper
edge (45) thereof and below the third gap strip seal (43) connected to the respective
door leaf.
5. A sliding door as claimed in claim 3 or 4, wherein the first, second, third and fourth
gap strip seals (34, 39, 43 and 48) connected to the door leaves (3, 4) and the frame
(2) are in abutting relationship in the closed position (C) of the door leaves, by
means of external faces (52) of their oppositely directed, facing flanges (37, 41,
46, 50).
6. A sliding door as claimed in any one of claims 3-5, wherein a first fire strip (56)
is associated with at least one of the first, second, third and fourth gap strip seals
(34, 39, 43, 48) on the respective door leaf (3, 4) and the frame (2), said first
fire strip(s) (56) expanding when exposed to fire after closing of the door leaves
(3, 4) in response to the sounding of a fire alarm, in order to prevent fire, smoke
and hot gases from spreading by way of the gap (G).
7. A sliding door as claimed in any one of the preceding claims, wherein at their lower
edges (57) the door leaves (3, 4) are guided by one floor guide (58) each, and wherein
along the lower edge of each door leaf, laterally of the associated floor guides (58)
guiding the door leaves (3, 4), a second fire strip (59) is provided which upon closed
door leaves (3, 4) and exposure to fire expands to prevent fire, smoke and hot gases
from spreading by way of a bottom gap (I) between the floor (60) and the respective
lower edges (57).
1. Schiebetür (1) mit einem Türrahmen (2) und wenigstens zwei Türblättern (3, 4), wobei
der Rahmen und die Türblätter jeweils miteinander verbundene Metallprofilsektionen
(5), die den rechtwinkeligen Rahmen (2) bilden, und Oberflächenelemente (6), die von
den Profilsektionen (5) umrahmt werden, aufweisen, wobei die Türblätter (3, 4) in
aufeinander ausgerichteter Beziehung am Türrahmen (2) aufgehängt sind und in der Türrahmenebene
parallel zu einer der Abmessungen des Rahmens (2) vorwärts und rückwärts verschoben
werden können, zwischen einer geschlossenen Stellung (C), wobei die einander gegenüberliegenden
Vorderkanten (13, 14) der Türblätter über eine Dichtung (15) aneinander stoßen, um
eine Durchgangsöffnung (16) in dem Rahmen (2) zu schließen, und einer offenen Stellung
(D), die einen Durchgang durch die Öffnung (16) gestattet, wobei die Dichtung (15)
einerseits wenigstens einen Dichtungsstreifen (17) mit einem im Wesentlichen U-förmigem
Profil umfasst, der einen Dichtungsstreifen-Stegabschnitt (18) und zwei Dichtungsstreifenflansche
(19) aufweist, wobei der Dichtungsstreifen-Stegabschnitt (18) mit der Vorderkante
(13) eines ersten Türblattes (3) verbunden ist, während die beiden Dichtungsstreifenflansche
(19) nach außen zur Vorderkante (14) eines gegenüberliegenden zweiten Türblattes (4)
weisen, wodurch der Dichtungsstreifen (17) um eine Höhe (H) über die Vorderkante (14)
hinausragt, wobei die freien Enden (20) der Dichtungsstreifenflansche (19) so angeordnet
sind, dass sie beim Schließen der Tür in einen feuerbeständigen und abdichtenden Kontakt
gegen die Vorderkante (14) des gegenüberliegenden zweiten Türblattes (4) bewegt werden,
und andererseits wenigstens eine weitere Metallprofilsektion (24) mit einem im Wesentlichen
U-förmigem Profil umfasst, die einen weiteren Metallprofilsektions-Stegabschnitt (27)
und zwei weitere Metallprofilsektionsflansche (25) aufweist, wobei die beiden weiteren
Metallprofilsektionsflansche (25) mittels ihrer beiden freien Enden (26) mit der Vorderkante
(14) des zweiten Türblattes (4) gegenüber dem Dichtungsstreifen verbunden sind, und
wobei der weitere Metallprofilsektions-Stegabschnitt (27) so angeordnet ist, dass
er beim Schließen der Tür zusammen mit den weiteren Metallprofilsektionsflanschen
(25) in einen feuerbeständigen und abdichtenden Kontakt gegen die Seitenwände (28)
eines nach auswärts offenen, im Wesentlichen U-förmigen Kanals (29) des Dichtungsstreifens
(17) bewegt wird, wobei der Kanal (29) durch den Dichtungsstreifen-Stegabschnitt (18)
und die Dichtungsstreifenflansche (19) begrenzt ist, wobei an der Vorderkante (13)
des ersten Türblattes (3) wenigstens zwei Schutzflansche (30) angeordnet sind, an
denen der Dichtungsstreifen-Stegabschnitt (18) befestigt ist und die von dem Dichtungsstreifen-Stegabschnitt
zur Vorderkante (14) des zweiten Türblattes (4) hin hervorstehen, wobei der Dichtungsstreifen
(17) zwischen den Schutzflanschen (30) angeordnet ist, wobei die Schutzflansche (30)
auf den Außenflächen der Dichtungsstreifenflansche (19) aufliegen, um den Dichtungsstreifen
(17) so weit wie möglich vor den Einflüssen des Feuers zu schützen, dadurch gekennzeichnet, dass die Schutzflansche (30) von der zugehörigen Vorderkante (13) um eine Entfernung (E)
hervorstehen, die nur geringfügig kürzer ist als die Höhe (H) des Dichtungsstreifens
(17).
2. Schiebetür nach Anspruch 1, wobei in einem Spalt (G) zwischen den einander gegenüberliegenden
Seiten (31, 32) des Rahmens (2) und den Türblättern (3 bzw. 4) ein Dichtungselement
(33) angeordnet ist, das den Spalt (G) in der geschlossenen Stellung (C) in einer
feuerbeständigen Weise abdichtet.
3. Schiebetür nach Anspruch 2, wobei das Spaltdichtungselement (33) einerseits wenigstens
einen ersten Spaltdichtungsstreifen (34) mit einem allgemein U-förmigem Profil umfasst,
der einen ersten Spaltdichtungsstreifen-Stegabschnitt (35) und zwei erste Spaltdichtungsstreifenflansche
(37) aufweist, wobei der erste Spaltdichtungsstreifen-Stegabschnitt (35) mit der Seite
(32) des jeweiligen Türblattes (3, 4), die dem Rahmen zugewandt ist, in dem Bereich
neben der Hinterkante (36) des jeweiligen Türblattes verbunden ist, während die beiden
ersten Spaltdichtungsstreifenflansche (37) zum Rahmen (2) hin ausgerichtet sind, wobei
die freien Enden (38) der ersten Spaltdichtungsstreifenflansche (37) in abdichtender
Weise gegen den Rahmen (2) stoßen, wenn die Türblätter (3, 4) sich in der geschlossenen
Stellung (C) befinden, und andererseits wenigstens einen Spaltdichtungsstreifen (39)
mit einem im Wesentlichen U-förmigem Profil umfasst, der einen zweiten Spaltdichtungsstreifen-Stegabschnitt
(40) und zwei zweite Spaltdichtungsstreifenflansche (41) aufweist, wobei der zweite
Spaltdichtungsstreifen-Stegabschnitt (40) mit der Seite (31) des Rahmens (2), die
dem jeweiligen Türblatt (3, 4) zugewandt ist, im Bereich der Öffnung (16) in dem Rahmen
(2) verbunden ist, während die beiden zweiten Spaltdichtungsstreifenflansche (41)
zum entsprechenden Türblatt (3, 4) hin ausgerichtet sind, wobei die freien Enden (42)
der zweiten Spaltdichtungsstreifenflansche (41) in der geschlossenen Stellung der
Türblätter (3, 4) in abdichtender Weise gegen das entsprechende Türblatt im Bereich
neben der Hinterkante (36) des entsprechenden Türblattes und im Inneren des ersten
Spaltdichtungsstreifens (34) des entsprechenden Türblattes (3, 4) - in Schließrichtung
gesehen - stoßen.
4. Schiebetür nach Anspruch 3, wobei das Spaltdichtungselement (33) des Weiteren einerseits
wenigstens einen dritten Spaltdichtungsstreifen (43) mit einem im Wesentlichen U-förmigem
Profil umfasst, der einen dritten Spaltdichtungsstreifen-Stegabschnitt (44) und zwei
dritte Spaltdichtungsstreifenflansche (46) aufweist, wobei der dritte Spaltdichtungsstreifen-Stegabschnitt
(44) mit der Seite (32) des jeweiligen Türblattes (3, 4), die dem Rahmen zugewandt
ist, in dem Bereich neben der Oberkante (45) des jeweiligen Türblattes verbunden ist,
während die beiden dritten Spaltdichtungsstreifenflansche (46) zum Rahmen hin ausgerichtet
sind, wobei die freien Enden (47) der dritten Spaltdichtungsstreifenflansche (46)
in abdichtender Weise gegen den Rahmen (2) stoßen, wenn die Türblätter (3, 4) sich
in der geschlossenen Stellung (C) befinden, und andererseits wenigstens einen vierten
Spaltdichtungsstreifen (48) mit einem im Wesentlichen U-förmigem Profil umfasst, der
einen vierten Spaltdichtungsstreifen-Stegabschnitt (49) und zwei vierte Spaltdichtungsstreifenflansche
(50) aufweist, wobei der vierte Spaltdichtungsstreifen-Stegabschnitt (49) mit der
Seite (31) des Rahmens (2), die dem jeweiligen Türblatt (3, 4) zugewandt ist, im Bereich
neben und oberhalb der Öffnung (16) in dem Rahmen (2) verbunden ist, während die beiden
vierten Spaltdichtungsstreifenflansche (50) zum entsprechenden Türblatt (3, 4) hin
ausgerichtet sind, wobei die freien Enden (51) der vierten Spaltdichtungsstreifenflansche
in der geschlossenen Stellung (C) der Türblätter (3, 4) in abdichtender Weise gegen
das entsprechende Türblatt (3, 4) im Bereich neben der Oberkante (45) des entsprechenden
Türblattes und unter dem dritten Spaltdichtungsstreifen (43), der mit dem entsprechenden
Türblatt verbunden ist, stoßen.
5. Schiebetür nach Anspruch 3 oder 4, wobei die ersten, zweiten, dritten und vierten
Spaltdichtungsstreifen (34, 39, 43 und 48), die mit den Türblättern (3, 4) und dem
Rahmen (2) verbunden sind, in der geschlossenen Stellung (C) der Türblätter mittels
Außenflächen (52) ihrer entgegengesetzt gerichteten, aufeinander zuweisenden Flansche
(37, 41, 46, 50) aneinander stoßen.
6. Schiebetür nach einem der Ansprüche 3 bis 5, wobei ein erster Feuerstreifen (56) wenigstens
einem der ersten, zweiten, dritten und vierten Spaltdichtungsstreifen (34, 39, 43
und 48) an dem entsprechenden Türblatt (3, 4) und dem Rahmen (2) zugeordnet ist, wobei
der oder die ersten Feuerstreifen (56) sich unter der Einwirkung von Feuer ausdehnen,
nachdem die Türblätter (3, 4) in Reaktion auf das Auslösen eines Feueralarms geschlossen
wurden, um zu verhindern, dass Feuer, Rauch und heiße Gase sich durch den Spalt (G)
hindurch ausbreiten.
7. Schiebetür nach einem der vorangehenden Ansprüche, wobei die Türblätter (3, 4) an
ihren Unterkanten (57) an jeweils einer Bodenführung (58) geführt werden und wobei
entlang der Unterkante eines jeden Türblattes seitlich von den zugehörigen Bodenführungen
(58), welche die Türblätter (3, 4) führen, ein zweiter Feuerstreifen (59) angeordnet
ist, der sich bei geschlossenen Türblättern (3, 4) und unter Feuereinwirkung ausdehnt,
um zu verhindern, dass Feuer, Rauch und heiße Gase sich durch einen Bodenspalt (I)
zwischen dem Boden (60) und den jeweiligen Unterkanten (57) hindurch ausbreiten.
1. Porte coulissante (1) comprenant un encadrement de porte (2) et au moins deux battants
de porte (3, 4), chacun dudit encadrement et desdits battants de porte comprenant
des sections profilées métalliques interconnectées (5) formant l'encadrement à angle
droit (2) et des éléments de surface (6) encadrés par lesdites sections profilées
(5), lesdits battants de porte (3, 4) étant suspendus dans une relation alignée mutuellement
à partir de l'encadrement de porte (2) et étant déplaçables vers l'avant et vers l'arrière
dans le plan de l'encadrement de porte parallèle à l'une des dimensions de l'encadrement
(2) entre une position fermée (C) dans laquelle les bords avant en confrontation (13,
14) desdits battants de porte butent l'un contre l'autre par l'intermédiaire d'une
garniture (15) afin de fermer une ouverture de passage (16) dans ledit encadrement
(2), et une position ouverte (D) permettant le passage par le biais de ladite ouverture
(16), la garniture (15) comprenant d'une part au moins une garniture en bande (17)
d'une configuration essentiellement en forme de U comprenant une portion de tissu
de garniture en bande (18) et deux brides de garniture en bande (19), la portion de
tissu de garniture en bande (18) étant connectée au bord avant (13) d'un _premier
battant de porte (3) tandis que les deux brides de garniture en bande (19) sont dirigées
vers l'extérieur, vers le bord avant (14) d'un deuxième battant de porte opposé (4),
la garniture en bande (17) faisant ainsi saillie d'une hauteur (H) au-dessus du bord
avant (14), les extrémités libres (20) desdites brides de garniture en bande (19)
étant agencées lors de la fermeture de la porte de manière à être déplacées dans une
butée résistant au feu et étanche contre le bord avant (14) dudit deuxième battant
de porte opposé (4), et d'autre part au moins une section profilée métallique supplémentaire
(24) d'une configuration essentiellement en forme de U comprenant une portion de tissu
de section profilé métallique supplémentaire (27) et deux brides de section profilée
métallique supplémentaire (25), les deux brides de section profilée métallique supplémentaire
(25) étant connectées au moyen de leurs deux extrémités libres (26) au bord avant
(14) du deuxième battant de porte (4) à l'opposé de la garniture en bande et la portion
de tissu de section profilée métallique supplémentaire (27) étant agencée lors de
la fermeture de la porte de manière à être déplacée conjointement avec les brides
de section profilée métallique supplémentaire (25) dans une butée résistant au feu
et étanche contre les parois latérales (28) d'un canal (29) ouvert vers l'extérieur,
essentiellement en forme de U de la garniture en bande (17), lequel canal (29) est
délimité par la portion de tissu (18) et les brides (19) de garniture en bande, au
moins deux brides de protection (30) étant prévues sur le bord avant (13) du premier
battant de porte (3) auquel la portion de tissu de garniture en bande (18) est fixée
et faisant saillie depuis ladite portion de tissu de garniture en bande vers le bord
avant (14) du deuxième battant de porte (4), ladite garniture en bande (17) étant
disposée entre lesdites brides de protection (30), ces dernières résistant sur les
faces externes des brides de garniture en bande (19) de manière à protéger autant
que possible la garniture en bande (17) des effets du feu, caractérisée en ce que lesdites brides de protection (30) font saillie depuis le bord avant associé (13)
d'une distance (E) qui est seulement légèrement plus courte que la hauteur (E) de
la garniture en bande (17).
2. Porte coulissante selon la revendication 1, dans laquelle un élément d'étanchéité
(33) est prévu dans un espace (G) entre les côtés faisant face (31, 32) de l'encadrement
(2) et les battants de porte (3, 4 respectivement), ledit élément étanchéifiant l'espace
(G) dans la position fermée (C) d'une manière résistant au feu.
3. Porte coulissante selon la revendication 2, dans laquelle l'élément d'étanchéité d'espace
(33) comprend d'une part au moins une première garniture en bande d'espace (34) possédant
une configuration généralement en forme de U comprenant une première portion de tissu
de garniture en bande d'espace (35) et deux premières brides de garniture en bande
d'espace (37), la première portion de tissu de garniture en bande d'espace (35) étant
connectée au côté (32) du battant de porte respectif (3, 4) faisant face à l'encadrement
(2) dans la région adjacente au bord arrière (36) du battant de porte respectif tandis
que les deux premières brides de garniture en bande d'espace (37) sont dirigées vers
l'encadrement (2), les extrémités libres (38) des premières brides de garniture en
bande d'espace (37) butant de manière étanche contre l'encadrement (2) dans la position
fermée (C) des battants de porte (3, 4) et d'autre part au moins une deuxième garniture
en bande d'espace (39) possédant une configuration essentiellement en forme de U comprenant
une deuxième portion de tissu de garniture en bande d'espace (40) et deux deuxièmes
brides de garniture en bande d'espace (41), la deuxième portion de tissu de garniture
en bande d'espace (40) étant connectée au côté (31) de l'encadrement (2) faisant face
au battant de porte respectif (3, 4) dans la région de l'ouverture (16) dans l'encadrement
(2) tandis que les deux deuxièmes brides de garniture en bande d'espace (41) sont
dirigées vers le battant de porte correspondant (3, 4), les extrémités libres (42)
des deuxièmes brides de garniture en bande d'espace (41) dans la position fermée des
battants de porte (3, 4) butant de manière étanche contre le battant de porte correspondant
dans la région adjacente au bord arrière (36) de celui-ci et à l'intérieur de la première
garniture en bande d'espace (34) du battant de porte correspondant (3, 4) comme il
est visible dans la direction de fermeture.
4. Porte coulissante selon la revendication 3, dans laquelle l'élément d'étanchéité d'espace
(33) comprend également d'une part au moins une troisième garniture en bande d'espace
(43) d'une configuration essentiellement en forme de U comprenant une troisième portion
de tissu de garniture en bande d'espace (44) et deux troisièmes brides de garniture
en bande d'espace (46), la troisième portion de tissu de garniture en bande d'espace
(44) étant connectée au côté (32) du battant de porte respectif (3, 4) faisant face
à l'encadrement (2) dans la région adjacente au bord supérieur (45) du battant de
porte respectif tandis que les deux troisièmes brides de garniture en bande d'espace
(46) sont dirigées vers l'encadrement, les extrémités libres (47) des troisièmes brides
de garniture en bande d'espace (46) butant de manière étanche contre l'encadrement
(2) dans la position fermée (C) des battants de porte (3, 4) et d'autre part au moins
une quatrième garniture en bande d'espace (48) possédant une configuration essentiellement
en forme de U comprenant une quatrième portion de tissu de garniture en bande d'espace
(49) et deux quatrièmes brides de garniture en bande d'espace (50), la quatrième portion
de tissu de garniture en bande d'espace (49) étant connectée au côté (31) de l'encadrement
(2) faisant face au battant de porte respectif (3, 4) dans la région adjacente et
au-dessus de l'ouverture (16) dans l'encadrement (2) tandis que les deux quatrièmes
brides de garniture en bande d'espace (50) sont dirigées vers le battant de porte
respectif (3, 4), les extrémités libres (51) des quatrièmes brides de garniture en
bande d'espace dans la position fermée (C) des battants de porte (3, 4) butant de
manière étanche contre le battant de porte correspondant (3, 4) dans la région adjacente
au bord supérieur (45) de celui-ci et en dessous de la troisième garniture en bande
d'espace (43) connectée au battant de porte respectif.
5. Porte coulissante selon la revendication 3 ou 4, dans laquelle les première, deuxième,
troisième et quatrième garnitures en bande d'espace (34, 39, 43 et 48) connectées
aux battants de porte (3, 4) et à l'encadrement (2) possèdent une relation de butée
dans la position fermée (C) des battants de porte au moyen des faces externes (52)
de leurs brides dirigées de manière opposée, faisant face (37, 41, 46, 50).
6. Porte coulissante selon l'une quelconque des revendications 3 à 5, dans laquelle une
première bande pare-feu (56) est associée à au moins l'une des première, deuxième,
troisième et quatrième garnitures en bande d'espace (34, 39, 43, 48) sur le battant
de porte respectif (3, 4) et l'encadrement (2), la (les) dite (s) première(s) bande
(s) pare-feu (56) subissant une expansion lorsqu'elles sont exposées au feu après
la fermeture des battants de porte (3, 4) en réponse au retentissement d'une alarme
à incendie afin de prévenir la répartition par l'espace (G) du feu, de la fumée et
des gaz chauds.
7. Porte coulissante selon l'une quelconque des revendications précédentes, dans laquelle
au niveau de leurs bords inférieurs (57), les battants de porte (3, 4) sont guidés
par un guide de plancher (58) chacun, et dans laquelle le long du bord inférieur de
chaque battant de porte, latéralement aux guides de plancher associés (58) guidant
les battants de porte (3, 4), une deuxième bande pare-feu (59) est prévue, laquelle
lorsque les battants de porte (3, 4) sont fermés et lorsqu'elle est exposée au feu
subit une expansion afin de prévenir la répartition par un espace inférieur (I) entre
le plancher (60) et les bords inférieurs respectifs (57) du feu, de la fumée et des
gaz chauds.