EP3225774A1 - Partition curtain - Google Patents

Abstract

The invention relates to a hochraffbaren curtain (1) for sports halls, multi-purpose halls, event and exhibition halls, industrial halls, halls or the like, consisting of at least one curtain support means (15) and at least two arranged on this wall surfaces (2, 3, 4, 5) Synthetic leather, plastic film, nonwoven fabric, textile fabric or the like, wherein a wall surface (2, 3, 4, 5) preferably composed of individual web segments (12) and a wall surface (2, 3, 4, 5) or a web segment (12) via by means of a motor drive movable traction means, which consist of vertical and horizontal traction means (9, 10), to the curtain support means (15) is highly aufraffbar, wherein further the wall surfaces (2, 3, 4, 5) to the outside, towards the room, consist entirely or in part of sound-absorbing material or one or all wall surfaces (2, 3, 4, 5) made of a perforated or perforated material, preferably fleece-coated, perforated artificial leather material, wherein further three, four or more wall surfaces are provided. In order to specify a multi-layered separating curtain which is advantageously further formed with particularly good soundproofing or sound absorption values, it is proposed that at least one (second) wall surface (2, 5) be provided, which is supported by a (first) wall surface (3, 4) only by horizontal traction means (10) which have no direct interaction with vertical traction means (9), is entrained in the high-lift position.

Description

Field of engineering

The invention relates to a hochraffbaren curtain for sports halls, multi-purpose halls, event and exhibition halls, industrial halls, halls or the like, consisting of at least one curtain support means and at least two arranged on these wall surfaces made of synthetic leather, plastic film, nonwoven, textile fabric or the like, with a wall surface preferably composed of individual web segments and a wall surface or a web segment by means of a motor drive movable vertical and horizontal traction means, consisting of vertical and horizontal traction means, the curtain support device is hochraffbar, further the wall surfaces to the outside, to the room, whole or in partial areas consist of sound-absorbing material or one or all wall surfaces of a perforated or perforated material, preferably fleece-coated, perforated artificial leather material, consist, wherein further three, four ode r more wall surfaces are provided.

State of the art

For physical education at schools, as well as for the exercise units of sports clubs using the sports halls, a good speech intelligibility in the partitions of a sports hall divided by curtains is essential and indispensable importance. Curtains as large, vertically arranged sound-reflecting surfaces have, when they are shut down, on the reverberation time in sports halls, especially in the middle third of three-field halls, decisive influence. The DIN 18032, halls for gymnastics, games and multi-purpose use therefore requires that curtains have to contribute to the sound absorption of the hall parts. For the Soundproofing of curtains dictates the same DIN 22 dB (A) values achieved with double-skinned curtains. However, the acoustical conditions in a sports hall are, in addition to the sound insulation between the hall parts separated by separating curtains, influenced considerably by the duration of the reverberation times or the echo effect within the individual separated hall parts.

There are two technical solutions known with which the reverberation times can be shortened.

For curtains it is from the DE 198 10 597 A1 it is known to arrange a further web provided with holes in front of a curtain track, with a certain free space between the two curtain tracks. The holes formed in the outer track serve to reduce the reverberation effect caused by sound reflection on the curtain track, since a large part of the sound passes through the holes and is not reflected on this track. The second, lying behind the perforated track closed curtain track is then to prevent a transfer of sound to the other side of the curtain, in the adjacent room inside. By additional sound-absorbing deposits in the open space, such as textile fabric, the sound insulation can be improved. A sound insulation of more than 12-14 dB is achieved by the curtains shown there, however, only if for the curtain tracks, especially for the continuous rear curtain tracks a particularly heavy plastic or plastic material or glass material is used.

As a result, these known curtains are quite difficult and very expensive materials. In addition, in this solution, only one wall surface of the curtain has a sound-absorbing effect, the unperforced second Wall surface is also sound reflecting with corresponding high reverberation times in the adjacent partitioned by the curtain partition part of the hall.

The second technical solution is from the EP 1174 063 A1 known. One or both panels or the curtain panels that make up the panels are coated outwardly with a nonwoven or other sound absorbing material that is firmly bonded to the surface of the curtain panel and is applied for cost reasons in the curtain sheet manufacturing process. This technical solution is intended to achieve both the sound insulation of 22 dB (A) required by DIN and the equally required sound absorption. In the production of the curtain webs, for example on an extruder or a calender, both the nonwoven web and the initially liquid plastic material pass under high pressure through a number of rollers. Due to this pressure, for example, a 2 mm thick nonwoven web, which is soft, open, porous and thus sound-absorbing before passing through the rollers, compressed to a thickness of for example 1 mm. The surface of the web, which was soft, open and porous prior to passing through the rolls, is significantly smoother and more closed after the production process. The sound absorption of the nonwoven web is thereby reduced.

Next is from the DE 32 34 202 A1 a 2-shell curtain is known, in which a curtain track as such is provided with both a perforated grid as well as on its back with a fluffy layer.

Summary of the invention

On the basis of the cited prior art, the object of the invention is to specify a multi-layered separating curtain, which is advantageously further formed with particularly good soundproofing or sound absorption values.

A possible solution to the problem is given according to a first idea of the invention in a curtain in which it is aimed that at least one (second) wall surface is provided by a (first) wall surface only by horizontal traction means, which does not interact directly with vertical traction means have, is entrained in the high-elevation. The second wall surface may in this case be removed in the usual way from the first wall surface; in the intermediate space but no vertical, but only horizontal traction means are formed. To the first wall surface, which is preferably connected to a further first wall surface via horizontal traction means on which also immediately attacks a vertical traction means, so a second wall surface is connected via horizontal traction means. With respect to these latter horizontal traction means between the first and second wall surfaces, no vertical traction means act directly in the intermediate space.

Further features of the invention are described below, also in the description of the figures, often in their preferred assignment to the claim concepts already explained above, but they can also be assigned to only one or more individual features, as described here, in particular the claims already dealt with , or independently or in another overall concept of importance. It is also possible to combine the measures of the claims already dealt with.

It is known to hoist two wall surfaces, which are connected to each other via horizontal traction means, via a common lifting device or lower. For this purpose, a vertical traction means is provided with respect to a cross section perpendicular to a surface extension of a wall surface, which further extends with respect to this cross section approximately centrally between the two wall surfaces and acts indirectly on the horizontal traction means or directly on the wall surfaces.

By means of the inventive approach, the arrangement of at least one additional (second) wall surface is made possible, which is connected via horizontal traction means on the immediately opposite wall surface and according to this entrains. A snatching and lowering the other (second) wall surface is so preferred via the same lifting device feasible, which also serves to Hochraffen and lowering the cooperating with the vertical traction means (first) wall surface.

The further (second) wall surface is connected via the horizontal traction means on the wide surface of the (first) wall surface facing away from the wide surface of the (first) wall surface facing the vertical traction means.

The inventive embodiment can also be described as an alternative to the features first outlined (or cumulatively to the features mentioned) in that, relative to a cross section perpendicular to a surface extension of a wall surface only a vertical traction means appears, representative of a number of vertical traction means lying one behind the other.

It is according to preferred only one row, viewed in the direction of extension of a take-up shaft provided behind one another vertical traction means, however, at least three spaced and each connected by horizontal traction means wall surfaces are provided.

From the EP 2947256 A1 is a separation curtain in 4-fold construction known, namely with two internal sound-absorbing wall surfaces and two outer sound-absorbing wall surfaces. Here, a distance between the inner sound-absorbing and the outer sound-absorbing, the game field side arranged wall surfaces between 5 and 300 mm and more is provided. Furthermore, in each case an outer sound-absorbing wall surface is moved together with the opposite sound-absorbing inner wall surface via a common lifting device upwards.

The method of a total of three, four or more wall surfaces by means of several, for example. Two lifting devices, which optionally has two winding shafts, each with its own geared motor or a common take-up shaft with only one drive and deflections for the further lifting device proves to be structurally complex and costly in terms of both material usage and assembly time. With the present invention, the realization of a separation curtain is achieved, which does not differ structurally from the commercially available constructions with a lifting device and a drive. At the same time, however, the soundproofing required by DIN 18032-4 of 22 dB (A) and, in addition, a sound absorption with a weighted sound absorption coefficient of 0.50 can be achieved.

Thus, the commercially available curtain can be equipped with two additional outer sound-absorbing wall surfaces, which are moved together with the existing and then internal sound-insulating wall surfaces, without the need for an additional lifting device. The attachment of the additional sound-absorbing (second) wall surfaces is preferably carried out in the region of the seams between the individual horizontally arranged Curtain webs of the sound-absorbing wall surfaces by the arrangement of continuous one-piece or multi-part, preferably two-part intermediate bands (horizontal traction means), which connect by making a continuous connection between the existing sound-absorbing wall surfaces and the additionally arranged sound-absorbing outer wall surfaces.

The use of intermediate strips as horizontal traction means has the advantage of being able to design the distance between the inner sound-insulating wall surfaces and the outer sound-absorbing wall surfaces variable, length-dependent of the intermediate bands. In this case, a distance of 50-100 mm is required for achieving the required according to DIN sound absorption.

The outer sound-absorbing wall surfaces may consist of the known sound-absorbing materials such as nonwoven fabric, foam, textile or synthetic fabrics or fabrics, glass fabric or - located, provided with flocking of fiber or foam material or fabrics or made of perforated material such as artificial leather, preferably of fleece-coated perforated artificial leather, preferably and by way of example with hole diameters of the perforation between 1 and 3 mm, with hole spacings between, for example, 2 and 30 mm.

From the cited above DE 198 10 597 A1 the use of perforated synthetic leather for curtains is known. In order to achieve good sound absorption values and sound insulation values, the deposit with a sound-absorbing as well as sound-insulating textile insert is an absolute prerequisite, the sound insulation despite a such deposit moves in a range which is far below the required by DIN 18032-4 value of 22 dB (A).

To achieve this value anyway, the arrangement of another unperforated synthetic leather track is provided immediately behind the perforated synthetic leather track in said publication. The connection of the perforated synthetic leather track, with or without deposited textile liner, and behind it arranged unperforated sound insulating synthetic leather track takes place, as shown in said publication, by sewing, wherein the seams extend over the entire horizontal extension of the synthetic leather track. The two synthetic leather tracks are thus not just in the area of seams without spacing and directly to each other. The distance shown in the figure of said publication between the synthetic leather tracks is hardly feasible in practice, in particular, the formation of an inward bulge for reasons of foldability, outwardly for aesthetic reasons, only poorly possible. In addition, if the bulges were feasible, the curtain webs would not abut one another directly, that is, without spacing, only within a range of approximately 15% of the separation curtain surface.

Since the sound absorption of perforated synthetic leather panels both from the deposit with a textile insert as well as a distance of at least 50, better at least 100 mm, to the underlying synthetic leather track is dependent, which is not feasible with the construction described in said publication, this embodiment never implemented in practice.

In a test arrangement of the sound-absorbing perforated synthetic leather track at a distance of example 100 mm, both the achievable by the DIN 18032-4 required 22 dB sound insulation and a weighted average sound absorption coefficient of 0.50. This test measurement was carried out without depositing the perforated synthetic leather track with a textile insert, which is mandatory when using and measuring perforated synthetic leather panels with a smooth and sound-reflecting surface, artificial leather with sound-absorbing nonwoven surface is not required. The deposit with a textile insert can therefore be dispensed with because synthetic leather with a sound-absorbing nonwoven surface has a weighted average sound absorption coefficient of 0.15 even without perforation.

For a good speech intelligibility, in particular in gymnasiums and under teaching and not least safety-relevant aspects concerning the instructions of the teaching staff, the guideline Acoustics, Fraunhofer Institute for Building Physics IBP, requires a reverberation time in such halls of 1.6 to 1.8 seconds , In addition to other sound-absorbing on-site measures, have separating curtains as the next floor, roof and walls in the shut down state largest areas, a very significant impact on the reverberation time. Therefore, DIN 18032-4 stipulates that curtains have to contribute to the sound absorption of the hall parts. With curtains whose walls are made of smooth, sound-reflecting artificial leather, this is not possible. On the contrary, the echo effect is amplified, extending the reverberation time in the hall. This circumstance has been known for a long time. One solution is the perforation of imitation leather. This in turn leads to the described deterioration of the sound insulation of curtains, which is detrimental to the acoustics and unacceptable because the sound insulation like. DIN 18032-4 must be at least 22 dB (A).

A compromise solution consists in the use of artificial leather with a sound-absorbing fleece surface. The required 22 dB (A) sound insulation can be achieved with this covering material. At the same time, the actual sound-absorbing nonwoven surface contributes to the improvement in the sound absorption of the hall components required by the same DIN. However, a disadvantage is the weighted average sound absorption of artificial leather with sound-absorbing non-woven surface, which is only 0.15 and is not sufficient to reduce the reverberation time in the halls according to the requirements.

By the proposed arrangement of three, four or more panels both requirements, namely that after 22 dB (A) of sound insulation and after a simultaneous sound absorption with a weighted average sound absorption coefficient of 0.5, are achieved simultaneously by the external arrangement of two perforated synthetic leather sheets Sound-absorbing nonwoven surface existing wall surfaces at a distance of exemplified 100 mm, or more or less, next to or, as preferred, two inner sound-absorbing wall surfaces, wherein the inner with each other and with the outer sound-absorbing wall surfaces by series horizontal traction means forming straps o. ä. are connected in the area of the seams. The outer wall surfaces are in this case horizontally spaced over substantially or completely the entire vertical length in the manner described. In essence, this means that the spacing is given in particular over 80 percent or more, even up to 100 percent of the vertical length in the manner described.

The connection of the outer sound-absorbing curtain tracks with the inner sound-absorbing belts - horizontal traction means - allows the arrangement in a required for sound absorption distance. When sewing, such as shown is not feasible. At the same time it is achieved that for the process of three, four or more wall surfaces only one cost-to-produce high-lift device, possibly with only one take-up shaft, is required. This high-speed device moves the one or the two inner sound-absorbing curtain tracks and at the same time takes the one or both outer sound-absorbing curtain tracks, which lay in even folds in the upward ride and evenly unfold in the downward movement.

By using perforated synthetic leather sheets with sound absorbing nonwoven surface and an arrangement thereof at the exemplified distance of 100 mm to the sound absorbing curtain tracks, the achievement of a weighted sound absorption coefficient of 0.5 for a curtain is possible without the outer perforated curtain tracks, as in smooth artificial leather Without sound-absorbing non-woven surface absolutely necessary, with the help of an additional textile insert for the purpose of achieving a higher sound absorption value.

The several, for example, four, wall surfaces are always distanced to each other. The preferably inner two wall surfaces can be connected via horizontal traction means, each connected to an inner surface, with the vertical traction means. The distancing in the horizontal direction already results in so far by the horizontal traction means located between the wall surfaces. A further (second) wall surface can then, as is preferred, be connected to this wall surface only with a further horizontal pulling means, which is then preferably connected only to this wall surface. In the usual way, the traction means are provided only on the inside, so that, viewed from an outer surface, no traction means are visible with respect to the entire separating curtain. By the mentioned embodiment is at the same time It also ensures that the several wall surfaces can be tidied up and drained in the usual way.

The approach pursued here also means to increase the number of side-by-side curtain tracks. Due to the fact that, however, the increased number of curtain webs can also be lifted and lowered at the same time via a jointly associated lifting device with preferably only one take-up shaft, favorable handling and cost-effective design are still provided. In addition, in such a number of curtain tracks and a more specific coordination of individual curtain tracks are made in terms of sound attenuation or sound insulation, so that can be achieved in the sum so far better sound technical properties.

It is further preferred that two curtain tracks as outer curtain tracks form outer surfaces of the separation curtain. An outer curtain web is preferably realized by a (second) wall surface connected solely to horizontal horizontal traction means on an inner curtain track. At least one curtain track can form an inner curtain track (first wall surface).

Furthermore, two curtain tracks can also be formed as inner curtain tracks, which are covered in the deflated state by the outer curtain tracks to the outside.

In an embodiment with two inner curtain tracks it is preferred that the inner curtain tracks are arranged directly opposite one another and can be actuated jointly via vertical and horizontal traction means. These immediately opposite wall surfaces are preferably horizontally spaced, as well as an outer curtain track to the immediately opposite facing inner curtain track.

The preferably only one take-up shaft can be arranged centrally between the inner curtain tracks with respect to a cross-section in which a geometrical axis of the take-up shaft appears to be centered between two curtain tracks, to act on the one behind the other appearing in this cross-section alone vertical traction means.

The gathering cords, which are also referred to above as vertical traction means, may possibly be guided over a deflection to the take-up shaft. The deflection can consist of pulleys.

A horizontal distance between an outer curtain track and an inner curtain track is - with respect to said cross-section - more preferably changeable. The variability in the practical application is preferably not produced by the user, but manufacturing technology, in the arrangement and attachment of the curtain in general, such as on a building ceiling. Preferred is a distance of 5 to 300 mm or more, up to 500 or 1000 mm. In particular, distances of up to 100, 150 or 200 mm are preferred. In this range, the distance between two inner curtain tracks, which are also connected to one another by horizontal traction means, can also move - with four curtain tracks.

Each outer curtain web may, as is preferred, have a basis weight of 500 to 1100 g / m ² , more preferably about 800 g / m ² .

Due to the preferred arrangement of the sound-absorbing exterior curtain tracks with a distance to at least one sound-absorbing interior curtain track, sound absorption values are achievable that fully meet the acoustic values demanded by acousticians for good speech intelligibility in sports halls according to DIN 18032. Tests according to DIN EN ISO 354 showed at a basis weight of 1,200 g / m ² of 300 mm spaced apart inner curtain tracks and a basis weight of 800 g / m ² of about 200 mm to the respective inner curtain track spaced outer curtain tracks a sound absorption coefficient α _s below the frequency of 800 Hz, which is decisive for speech intelligibility, from substantially 0.4 or more to approximately 0.9 to 1.0.

As an alternative to an arrangement of two horizontally spaced inner curtain tracks, which more preferably effect a sound insulation of at least 22 dB (A) as a function of one another, only one sound-absorbing inner curtain track can be provided. This preferably consists of particularly heavy sound insulation material, for example of a plastic material, glass or lead rubber. In this case, preferably at least the same sound insulation values as in the arrangement of two mutually spaced inner curtain tracks are achieved. The outer curtain webs are then connected to such an inner curtain web via horizontal traction means, wherein, as is preferred, viewed in cross section, all vertical traction means can extend between the inner curtain web and an outer curtain web.

Brief description of the drawings

Fig. 1

eine perspektivische, teilweise aufgebrochene Darstellung eines vierschaligen Trennvorhangs;

Fig. 2

eine Querschnittsdarstellung betreffend den Gegenstand der Figur 1;

Fig. 3

eine alternative Ausführungsform in der Darstellung gemäß Figur 2;

Fig. 4

eine weitere alternative Ausführungsform in der Darstellung gemäß Figur 2;

Fig. 5

eine Querschnittsdarstellung eines Trennvorhangs im dreischaligen Aufbau;

Fig. 6

eine der Figur 2 entsprechende Darstellung, eine weitere Ausführungsform betreffend;

Fig. 7

die Herausvergrößerung des Bereichs VII in Figur 6;

Fig. 8

eine schematische Ausschnittdarstellung einer perforierten Vorhangbahn.

In the following, the invention will be explained further with reference to the attached drawing, which, however, represents only exemplary embodiments. Hereby shows:

Fig. 1

a perspective, partially broken view of a four-bladed curtain separation;

Fig. 2

a cross-sectional view concerning the subject matter of FIG. 1 ;

Fig. 3

an alternative embodiment in the illustration of Figure 2;

Fig. 4

a further alternative embodiment in the illustration according to FIG. 2 ;

Fig. 5

a cross-sectional view of a separation curtain in the three-shell construction;

Fig. 6

one of the FIG. 2 corresponding representation concerning a further embodiment;

Fig. 7

the enlargement of the area VII in FIG. 6 ;

Fig. 8

a schematic sectional view of a perforated curtain track.

Description of the embodiments

Shown and described, first with reference to the FIGS. 1 and 2 , a curtain 1, as it can be used for example in sports halls or similar areas. Hereby areas of the hall or the like can be separated and largely avoided that noises are transmitted from one side to the other.

The curtain 1 consists in the in the FIGS. 1 to 4 illustrated embodiments of four as wall surfaces to be designated curtain tracks 2, 3, 4 and 5, which in the deflated installation state, such as in FIG. 1 is shown extending substantially vertically.

The curtain tracks 2 and 3 as well as 4 and 5 are in one embodiment visible on the bottom side via a connecting portion 6, 7 connected to each other. The connection can also be made via cross connector 10, which are arranged on the lower edge of the curtain tracks. The cross connector 10 are also addressed as horizontal traction means.

As can be seen, the vertical traction means act directly or indirectly on the cross connector 10 (horizontal traction means) with all wall surfaces together. The horizontal traction means are connected on the inside of the wall surfaces, but enforce these preferably not.

The horizontal traction means (cross connector 10) are connected to all curtain tracks and enforce the resulting between the curtain tracks spaces, for horizontal connection of all curtain tracks. Here, the cross connector 10 can be connected on both sides with respect to the inner curtain tracks 3, 4 or enforce the inner curtain tracks. In the in the FIGS. 1 to 4 embodiments shown, two inner curtain tracks 3 and 4. In the in FIG. 5 shown embodiment, only an inner curtain track is provided.

The said vertical traction means are movable by means of a drive in the upper region of the curtain tracks 2, 3, 4 and 5. In the embodiments, a driven winding shaft 8 is preferably provided as a motor device. With this motorized device can be on connecting means or traction means, in particular tread cords 9 (vertical traction means) are acted upon.

Hereby the curtain tracks 2, 3, 4 and 5 can be raised or lowered.

The curtain tracks 2, 3, 4 and 5 are in the in FIG. 1 illustrated installation state with lowered curtain tracks 2, 3, 4 and 5 in a cross section perpendicular to the extension surface of the curtain tracks 2, 3, 4 and 5 arranged horizontally next to each other.

The vertical traction means (gathering cords 9) extend in a four-shell embodiment of the curtain 1 in the space between the inner curtain tracks 3 and 4, here the transverse cross-connecting these connectors 10, and in a three-shell design in the space between an outer curtain track 2 and the one inner Curtain track 3.

All curtain tracks of the separating curtain 1 are at the same time aufraffbar or demountable via said vertical traction means 9 (and also possibly horizontal traction means) and the winding shaft 8.

In this case, the curtain runs 2 and 5 represent outer curtain tracks, while the curtain tracks 3 and 4 represent interior curtain walls or wall surfaces. The inner curtain tracks 3 and 4 are arranged directly opposite one another.

The inner curtain tracks 3 and 4 are with respect to a vertical extent thereof by series of provided at regular height intervals cross cords or cross connectors 10, before and below Also addressed as a horizontal traction means, both below and connected to the respective facing outer curtain tracks 2 and 5 respectively. The same arrangement also results between the only one inner curtain track 3 and the two outer curtain tracks 2 and 5 in the three-shell training according to FIG. 5 ,

The curtain tracks 2, 3, 4 and 5 are divided in the illustrated embodiment in transverse to the vertical extension web segments 12, which are preferably connected to each other via seams 13. In the area of the seams 13, the transverse connectors 10 are preferably fastened.

In a further embodiment, the web segments can also be riveted, screwed, clamped, pressed or glued, optionally in the arrangement of profiles or strips.

Raff rails 14 are also preferably provided on the separating curtain 1, which are fastened to the ends of the ends of the gathering shaft 8 which are located one behind the other in the direction of extension of the winding shaft 8, ropes, straps or chains. In a preferred embodiment, these gather rails 14 extend over the entire longitudinal extent of the separating curtain 1 and preferably act on the connecting regions 6 and 7 on the underside.

All curtain tracks 2, 3, 4 and 5 are fixed in a preferred embodiment on curtain cover 15 on the ceiling side.

The winding shaft 8 is, as in more detail from FIG. 2 shows, with respect to the entirety of the curtain tracks 2, 3, 4 and 5 in the illustrated Cross-sectional view preferably arranged centrally to this entirety of the curtain tracks. The winding shaft is preferably arranged in the four-lane embodiment such that with respect to two curtain tracks, here the inner curtain tracks 3 and 4, this is arranged centrally, such that the tying cords 9 (vertical traction means) pulled almost strictly vertically upward or drained vertically downwards can.

In a three-lane embodiment, the overall central arrangement of the gathering cords 9 and the take-up shaft 8 can be achieved by a greater spacing of the inner curtain track 3 to an outer curtain track 2 than to the other outer curtain track 5.

The arrangement of the two inner curtain tracks 3 and 4 can be varied with respect to a distance a between them, this in the embodiment in that the not shown here in detail brackets (curtain support 15) of the curtain tracks 3 and 4 on the ceiling side is made in a correspondingly greater distance ,

The embodiment of the FIG. 3 shows an arrangement with respect to the embodiment in FIG. 2 smaller distance a.

The extension length of the cross connector 10 between the inner curtain tracks 3 and 4 is preferably adjusted according to the desired distance a.

The gathering cords 9 (vertical traction means) are passed between the curtain tracks 3 and 4 in the direction of gravity and connected at their free ends with at least one associated Raffschiene 14.

In the lowered state, the gather rails 14 are located in the vertically lower region of the separating curtain 1.

The when raising the separation curtain 1 to vertically above moving gather rails 14 pull the attached in the seams 13 of the web segments 12 cross connector 10 (horizontal traction means) between the inner curtain tracks 3 and 4 with up and so gather respectively the curtain tracks 3 and 4 high, which are preferably placed on both sides of the gather rails 14 in uniform folds. The outer curtain tracks 2 and 5 are entrained via the cross connector 10 connected to the inner curtain tracks 3 and 4. It also results in the area of these outer curtain tracks 2 and 5, a gathering.

In the embodiment as shown in FIG FIG. 4 are the ribbon-like cross connector (horizontal traction means) replaced by the fact that the gathering cords 9 are guided by, for example, rings 16, loops or other moldings, which are preferably fastened in the region of the web segment seams.

Regardless of the above-described embodiment of the separation curtain 1, further preferably independently of the provided between the inner curtain webs 3 and 4 distance a, the distance b between an outer curtain web 2 or 5 to the associated inner curtain web 3 or 4 is variable , FIG. 2 shows by way of example a cross section through the separation curtain 1 at a horizontal distance c of about 150 mm, while in Figure 3, the distance b is increased in contrast, for example, to 200 mm. This spacing is achieved, in particular, by appropriate spacing of the curtain support means 15 from the curtain track 2 or 5 and the curtain track 3 or 4.

In the illustrations, an enlargement of the distance b is accompanied by an otherwise non-compelling, corresponding reduction of the distance a between the inner curtain tracks 3 and 4.

The inner curtain tracks 3 and 4 shown in the illustrations are preferably made of synthetic leather. These are used in particular for sound insulation. The additionally arranged sound-absorbing outer curtain tracks 2 and 5 in the exemplary embodiments are preferably made of fleece.

The curtain tracks do not necessarily consist of only one layer of a homogeneous sound-absorbing material. Alternatively, any number of layers of material for forming a curtain web 2, 3, 4 or 5 are possible, which are connected to each other in particular in the region of the seams 13.

The inner curtain tracks 3 and 4 have good sound insulating properties, whereby the curtain 1 achieved the required by DIN 18032 sound insulation of 22 dB (A). The additionally arranged outside sound-absorbing curtain tracks 2 and 5 ensure that the curtain 1, depending on the thickness of the curtain tracks 2 and 5 and the distance b between the outer curtain tracks 2 and 5 and the inner curtain tracks 3 and 4 achieved a sound absorption, in particular In the lower frequency range up to 800 Hz the requirement of the DIN 18032 and additionally the increased requirements of the acousticians and thus of the cities and municipalities as builders with regard to the health of the sports teachers, pupils and athletes met.

This is also - as in further FIG. 5 proposed - achieved in a three-shell curtain 1, wherein in the horizontal direction considered between the outer curtain tracks 2 and 5, only an inner curtain track 3 is provided. The above-described distance b here refers to the distance between the outer curtain tracks 2 and 5 to the one inner curtain track 3, which may preferably consist of web segments 12 of particularly heavy sound insulation material, such as plastic, glass or lead rubber.

In the FIGS. 6 and 7 a possible two-part configuration of the cross connector 10 is shown, in particular the between the curtain tracks 2 and 3 or 4 and 5 extending cross connector 10. Although not shown, the cross connector 10 may be formed in several parts between the curtain tracks 3 and 4.

In the exemplary embodiment, there are two connector sections 17 per cross-connector 10, which are connected to one another via a preferably lockable lock part 18.

FIG. 8 shows a cutout view of a curtain web of a fleece-laminated, perforated artificial leather.

The above explanations serve to explain the inventions as a whole, which further develop the state of the art independently, at least by the following feature combinations, namely:

A separating curtain, which is characterized in that at least one (second) wall surface 2, 5 is provided by a (first) wall surface 3, 4 only by horizontal traction means 10, which does not have a direct interaction having vertical traction means 9, is entrained in the high-lift.

A separating curtain, which is characterized in that the (first) wall surface 3, 4 by horizontal traction means 10, which cooperate directly with vertical traction means 9, is hochraffbar.

All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize with their features independent inventive developments of the prior art, in particular to make on the basis of these claims divisional applications.

List of reference numbers

1

curtain

2

Curtain track a distance

3

Curtain track b distance

4

curtain rail

5

curtain rail

6

connecting area

7

connecting area

8th

winding shaft

9

Raffschnur

10

cross-connector

11

section

12

path segment

13

seam

14

Raffschiene

15

Curtain supporting means

16

ring

17

connector portion

18

lock part

Claims (3)

Hochraffbarer separation curtain (1) for sports halls, multi-purpose halls, event and exhibition halls, industrial halls, halls or the like, consisting of at least one curtain support means (15) and at least two arranged on this wall surfaces (2, 3, 4, 5) made of synthetic leather, plastic film, Nonwoven fabric, textile fabric or the like, wherein a wall surface (2, 3, 4, 5) preferably composed of individual web segments (12) and a wall surface (2, 3, 4, 5) or a web segment (12) via means of a motor drive movable traction means, which consist of vertical and horizontal traction means (9,10), to the curtain support means (15) is hochraffbar, wherein further the wall surfaces (2, 3, 4, 5) to the outside, to the room, in whole or in partial areas consist of sound-absorbing material or one or all wall surfaces (2, 3, 4, 5) of a perforated or perforated material, preferably fleece-coated, perforated Kunstledermateri al, wherein three, four or more wall surfaces are further provided, characterized in that at least one (second) wall surface (2, 5) is provided, which is separated from a (first) wall surface (3, 4) only by horizontal traction means ( 10), which have no direct interaction with vertical traction means (9), is entrained in the high-lift. Separating curtain according to claim 1, characterized in that the (first) wall surface (3, 4) by horizontal traction means (10), which interact directly with vertical traction means (9), can be lifted high. Separating curtain, characterized by one or more of the characterizing features of one of the preceding claims.

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