DE102010031082A1 - Roller blind device for sealing access openings of refrigerating furniture, has roller bar arranged at free end of axially arranged roller blinds for supporting winding rollers of intermediate roller blinds - Google Patents

Abstract

The device has axially arranged roller blinds (1, 1') rolled together on to and from a winding roller (10), and intermediate roller blinds (7) arranged between the axially arranged roller blinds and rolled with the axially arranged roller blinds. A gap between the axially arranged roller blinds is covered in lowered position, and a roller bar (2) is arranged at a free end of the axially arranged roller blinds for supporting intermediate roller blind-winding rollers (71). A rail (72) comprises a slide groove (74), and a clamp (22) is provided for holding a sealing lip (4).

Description

The invention relates to a roller blind device with at least two adjacent roller blind webs, which are movable between an open and a closed position, wherein in the closed position between the roller blinds a gap is present.

Such a roller blind device is from the DE 100 21 656 A1 known. Roller blinds of this type are used for various purposes, usually windows for shielding against light or solar radiation, but also for refrigerated or goods shelves, in order to close the shelves during off-peak times and to reduce the loss of cooling capacity. Especially in the case of the latter roller blind devices, a high degree of insulation is important.

Since the refrigerated shelves extend over long lengths, roller blinds of 250 and 375 cm in length, but also longer, are required. These blinds are modular, d. H. they are composed of roller blinds which are coupled in series. Between the roller blinds are shaft bearings to support these long waves of blinds and to prevent sagging. In the area of these shaft bearings inevitably arise gaps between the roller blinds.

These columns are at least 10 to 25 mm wide and therefore a major weak point in terms of the efficiency of the blind device, because not only is there no cover, but in addition air flows between the furniture inside and the outside can occur. It has already been attempted to cover these columns by arranging brush-like edge strips on the side edges of the roller blinds to prevent unwanted temperature exchange. However, these brush-like edge strips are not able to satisfactorily prevent the temperature exchange and the air currents. In addition, these brush-like edge strips, which have to strip along the bearings of the roller blind roll and are bent back, make use of, so that the effect is less and less with the use. The worn edge strips must be replaced or the roller blinds must be replaced, which is extremely expensive.

The object of the invention is to provide a roller blind device with improved insulation.

This object is solved by the features of claim 1. According to the invention, it is proposed that the roller blind device has at least one intermediate roller blind which at least partially overlaps the gap between the roller blind webs in the closed position thereof and in a plan view. As a result, an air exchange over the gap and thus between both sides of the blind device can be avoided in a simple yet efficient manner. The roller blind is thus particularly suitable as a cover of refrigeration equipment in supermarkets and this ensures excellent insulation of the goods to be cooled with low energy consumption.

In this case, it brings advantages when the roller blind has a, at least one winding roller comprehensive, winding roller device for winding and unwinding of the roller blinds. The roller blinds can be formed in this case as a sheet-like webs, which can finally be wound up smoothly by the winding roller means to transfer the blind device in the open position.

It is also advantageous if the roller blind device has at least one winding roller for winding and unwinding the intermediate roller blind, so that the intermediate roller blind can also be unwound during unwinding of the roller blind webs and wound up again together with it.

It is also extremely advantageous if the at least one intermediate roller blind is arranged in the unwound position on the side of the winding roller facing the roller blind webs. As a result, roller blinds and intermediate blind are as close as possible to each other, so that an air exchange between both sides of the blind device can be particularly efficiently prevented or minimized.

It is also advantageous if the at least one intermediate roller blind is arranged in the unwound position on the side of the winding roller facing away from the roller blind webs. In particular, if the or the intermediate roller blinds have a width which substantially corresponds to the width of the roller blinds, form the roller blinds and the opposite and also adjacent to each other arranged intermediate roller blinds a kind of double wall. Finally, between the layer of roller blinds and the opposite layer, which are formed from the intermediate roller blinds, there is an air layer which further improves the insulating effect of the roller blind device, since air is a relatively poor conductor of heat.

It is also advantageous if the intermediate roller blind is arranged centrally with respect to the gap between two adjacent roller blind webs. This ensures that the Zwischenrollo reliably covers the gap and thus prevents air flow between the interior and the environment of the refrigerator.

It has special advantages when the width of the intermediate roller blind corresponds to the width of the roller blinds. As a result, this gives a two-layer roller blind device whose insulation effect is significantly improved over conventional single-layer devices.

It also brings benefits when at least one lateral end of the roller blind device an intermediate roller blind is arranged, which is flush with the adjacent roller blind and in particular has half the width of a roller blind, so that said two-ply is ensured even in the side region of a cabinet.

It is also extremely advantageous if the roller blind device has at least one roller blind rod which is fastened to the roller blind webs. The roller blind in this case forms a lower end of the roller blinds, with the help of which the blind device can finally be opened and closed again.

It is also advantageous if the winding roller of the intermediate roller blind is mounted on or on the roller blind rod. In this way can take place while winding the roller blinds at the same time winding the intermediate roller blind. Likewise, the intermediate roller is unwound from the winding roller, although the roller blinds are unwound from the winding device. By the opposite arrangement of winding device and winding roller (s) of the or the intermediate roller blind also a mutual contact is avoided, so that the blind device can be operated reliably and reliably for a long time.

It is particularly advantageous if the roller blind rod is designed as a half-shell and serves to receive the winding roller of the intermediate roller blind, so that the roller blind device has a clean lower end and the winding roller is simultaneously protected by the roller blind rod.

In order to advantageously ensure a tight closure of the blind device in the lowered position, a sealing lip is arranged on the outer circumference of the roller blind, which terminates flush in the developed position with a counter surface of the cabinet and thus prevents air exchange in the lower region of the blinds.

It when the sealing lip in the closed position of the roller blinds runs approximately parallel to the roller blinds and assumes a deviating position in the open position of the roller blinds, and in particular runs perpendicular to the roller blinds is particularly advantageous. As a result, seals the lip in unwound state safely and offers in the wound state of the roller blinds only a small attack surface, so that damage is avoided. Due to the geometry of the attachment of the roller blind on the roller blind rod, the sealing lip in the lowered position of the blind takes in a vertical, downward and in the raised position of the blinds a horizontal position, so that the shelf opening fully released, but also with lowered roller blind is completely closed.

It is also extremely advantageous if the roller blind webs are fastened to the outer circumference of the roller blind rod by means of at least one clamping piece. This allows a simple, fast and yet reliable fixation of the roller blinds, the connection can be solved at any time when needed.

It is advantageous if the clamping piece of the holder of the sealing lip is used and in particular has a groove for fixing the sealing lip. It can be dispensed with additional fasteners, so that vulnerability and maintenance times of the roller blind can be reduced.

Particular advantages it brings with it when the roller blind rod has at least one recess for receiving a bearing for the winding roller at its inner periphery. This gives a fixation, which allows a secure hold of the winding roller and at the same time a smooth turning of the same, so that the intermediate blinds can reliably up and unwound.

It is also advantageous if the storage of a half-shell, which is slidably mounted in the roller blind rod by means of a slide in the recess of the roller blind, and from face plates, which are attached to both ends of the half-shell for supporting the winding roller. Due to the slidable mounting of the intermediate roller blind, the roller blind device can be delivered completely pre-assembled and the intermediate roller blind can be moved to the desired position after installation.

Also, it is extremely advantageous if the winding roller of the intermediate roller blind has a spring drive for rolling up the intermediate roller blind. The winding roller thereby rotates automatically when the roller blinds are wound by the above winding device, the winding device itself may also be provided with a spring drive or an electric drive.

It is likewise advantageous if a rail is provided in the region of the winding roller device for fastening the intermediate roller blind. By attaching the intermediate roller blind on a rail below the winding roller, it is outside the range of storage for the winding roller (s) of the roller blinds. A touch of these camps or even the Intermediate blinds and edge wear can not occur.

Likewise, it brings advantages when the roller blind device has at least one additional roller blind, which can be wound up and unwound together with a roller blind by means of the winding roller device, the roller blinds running in the closed position in particular parallel to each other. Both roller blinds thus form a double wall, between which an insulating air cushion is enclosed. The insulating effect can be further increased in this way, so that the energy consumption of the cooling cabinet continues to fall.

It when the additional roller blind is connected to the roller blind to allow a common fixation and thus a uniform winding and unwinding of both roller blinds is particularly advantageous.

Furthermore, it is advantageous if the roller blind webs are arranged in the closed position at a distance (A) from one another and are wound over one another in the open position. The fact that an air space is created in the developed position between the two roller blinds, a good insulation effect is achieved, so that it is also possible to use thin, easily windable fabrics for roller blinds. When rolled up, the roller blinds are rolled up one above the other so that reels of normal and standard size are achieved.

It is advantageous if the at least one intermediate roller blind runs in the unwound position between a roller blind and an additional roller blind. The arrangement of an intermediate roller blind between the two roller blinds two air chambers are formed, which have an extremely good insulation.

It is also advantageous if the roller blind webs are fastened at a distance on the circumference of the winding roller device, so that in the developed position of the roller blind webs there is a spacing (A) between the roller blind webs. By such a fastening of the roller blinds at a distance on the circumference of the winding roller, and if necessary also at a corresponding distance on the circumference of the roller blind, the distance between the roller blinds can be determined from each other and thus the size of the two air chambers.

Also, it is extremely advantageous if the roller blind webs are connected to one another at their ends and in the unwound position wrap around at least one winding roller of the winding roller device and the roller blind rod, so that the length of the blind webs is fixed and the distance always with the diameters of the winding rollers of the winding roller device or of the roller blind rod corresponds.

Not least, it may be advantageous if the roller blinds and / or the at least one intermediate roller blind is designed as a folding door and is folded in a zigzag manner, at least in the open position. In this case, it is possible to dispense with a winding roller device, so that the production costs of the roller blind device can be reduced. The roller blinds and / or the intermediate roller blind can be guided on one or more guide cables, which are hung, for example, on the frame of a refrigerated cabinet.

Further details of the invention will be described with reference to the following embodiments. Show it:

1 a roller blind device according to the invention in the closed position of the roller blind webs in cross section,

2 the blind device according to 1 in cross section, but in the open position of the blinds,

3 a refrigerated cabinet equipped with a roller blind device according to the invention, in elevation,

4 Details of the storage of the winding shaft of the intermediate roller blind on the roller blind rod,

5 a side view of a roller blind device according to the invention,

6 to 8th schematic perspectives of further roller blind devices according to the invention,

9 a side view of another roller blind device according to the invention,

10 a front view of the roller blind according to 9 , and

11 the side view of another embodiment of a roller blind device according to the invention.

It should be noted in advance that in figures showing several similar components, sometimes only one of several similar components is provided with reference numerals in order to ensure a good overview.

In 1 is a refrigerated cabinet with a side wall 6 a frame 5 and a floor 62 as well as a blanket 61 and a panel 51 partially shown in cross section. The refrigerator is with a roller blind device for closing the goods access opening equipped.

This roller blind device consists of roller blinds 1 and 1' for which a winding roller 10 (As part of a winding roller device) for winding the two roller blinds 1 and 1' and a roller blind 2 is provided. Between the two roller blinds 1 and 1 is another roller blind as an intermediate roller blind 7 arranged, but for the separate winding a winding roller 71 , arranged on the roller blind 2 , as well as a rail 72 as a roller blind rod for fixing the free end of the roller blind of the intermediate roller blind 7 is provided.

The winding roller 10 is powered by hand or by an electric motor while the winding roller 71 of the intermediate roller blind 7 has a spring drive, as is customary in so-called Schnapprollos. When winding and unrolling the roller blinds 1 and 1' becomes the intermediate roller blind 7 also according to the movement of the roller blind 2 rolled up and down.

On the ceiling 61 of the refrigerated cabinet are winding roller bearings 12 for the winding roller 10 attached to those in extension of the winding roller bearings 12 a rail suspension 73 for the rail 72 is arranged. The rail 72 is thus below the winding roller 10 between the roller blinds 1 . 1' arranged. The rail 72 has a sliding groove 74 on, in which the free end of the roller blind of the intermediate roller blind 7 slidably mounted. The roller blinds 1 and 1' are connected to each other at their ends, so that in the lowered position, both the winding roller 10 as well as the roller blind rod 2 are entwined by the resulting endless blind sheet. The roller blinds joined together to form a continuous web 1 and 1' are by a clamping piece 22 on the roller blind 2 attached.

The clamping piece 22 has a groove 24 on, the attachment of a sealing lip 4 serves (see 4 ). The ends of the roller blinds 1 and 1' but also for each on the roller blind 2 be attached.

The diameter of the half shell 77 trained Rollostabs 2 is decisive for the distance A of the two roller blinds 1 and 1' , At the attachment points 11 and 11 ' is the one from the roller blinds 1 . 1' formed endless roller blind on the winding roller 10 attached. By this type of attachment, the distance A of the two roller blinds 1 and 1' given. Here are the attachment points 11 and 11 ' offset by 180 degrees to each other on the circumference of the winding roller 10 are practically the diameter of the winding roller 10 determining the distance A. Similarly wrap around the blind webs joined together to form an endless web 1 and 1' the roller blind 2 , which as a half shell 77 is shaped and on its inner circumference a recess 21 having. This half shell 77 is so big that the roller blind 2 the winding roller 71 of the intermediate roller blind 7 and in the wound position (see 2 ) also the wound intermediate roller blind 7 can record. The side of the winding roller 71 arranged bearings for the winding roller 71 of the intermediate roller blind 7 are through a half shell 77 connected to each other by means of a slide rail 78 in the recess 21 movable in the roller blind 2 is stored.

The intermediate roller blind 7 so can the roller blind 2 be moved to a desired position. Around the columns 13 between adjacent roller blinds 1 respectively. 1' to cover, is the intermediate blind 7 in a position centered on the columns 13 postponed. The roller blind 2 extends over the width of the roller blind 1 respectively. 1' , like out 3 is apparent. By moving the intermediate roller blinds 7 become the roller blinds 2 the roller blinds arranged side by side 1 respectively. 1' together to a extending over the entire length of the refrigerator roller blind 2 connected. At the same time, the free ends of the intermediate blinds 7 in the sliding groove 74 the rail 72 follow this shift.

The roller blinds of the intermediate roller blind are expedient 7 as wide as the roller blinds 1 . 1' and the intermediate blind 7 in each case in the middle of the columns 13 arranged. That way not just the columns 13 through the intermediate blinds 7 as well as the columns 75 between the intermediate blinds 7 from the roller blinds 1 respectively. 1' covered, but it creates two air chambers, through which the roller blind receives an extremely good insulation effect.

At the on the Kühlmöbelwand 6 adjacent ends of the blind device are intermediate blinds 7 ' provided that only half the width of the roller blinds 1 respectively. 1' exhibit. To at the Kühlmöbelwänden 6 To ensure the appropriate tight connection, can in this way the intermediate roller blind 7 ' to the wall 6 be pushed. To get a smooth run on the wall 6 to ensure is the bearing of the winding roller 71 of the intermediate roller blind 7 ' as a face plate 76 trained on the wall 6 of the refrigerated cabinet can slide along.

Of course, also arise between the adjacent Zwischenrollos 7 respectively. 7 ' columns 75 by the storage of the winding roller 71 , Due to the offset and central arrangement of the webs 1 and 1' as well as the intermediate blinds 7 become the columns 13 and 75 However, completely covered and thus formed two almost closed air spaces that prevent air movement, thereby ensuring a very good insulation. An air exchange through these columns 13 and 75 is almost impossible.

5 shows a side view of another roller blind device according to the invention. This has, in contrast to the embodiments shown so far only one or more juxtaposed roller blinds 1 on. On parallel roller blinds 1' was omitted, but the columns 13 between the roller blinds 1 also by one or more intermediate blinds 7 are overlapped (which does not necessarily mean that the roller blinds 1 and the intermediate blinds 7 have to touch). Again, an air chamber, which enhances the insulating effect of the roller blind device.

A perspective view of a corresponding roller blind device is shown in FIG 6 shown. It can be seen that the intermediate roller blinds 7 in unwound position on the roller blinds 1 opposite side of the winding rollers 71 are arranged so that the said air cushion can form. The storage of the rails 72 , which is not shown here, can be done in a similar or the same way as described in connection with the previous figures.

Furthermore is 7 to see that the intermediate blinds 7 may advantageously have the same width as the roller blinds 1 , This will make the existing columns 13 and 75 minimized and it also takes place in accordance with mutual mutual alignment a maximum overlap area, which again can form the said air cushion.

In 8th a section of a roller blind device according to the invention is shown, in which the intermediate roller blinds 7 in unwound position on the roller blinds 1' facing side of the winding rollers 71 are arranged. Although no air cushion can form here. Nevertheless, an excellent insulation effect is achieved, since the distance between the Zwischenrollos 7 and the roller blinds 1 is minimized and thereby a possible exchange of air through the roller blind device can be prevented.

An alternative design of shade 1 and intermediate roller blind 7 show the 9 and 10 , Here, the said elements are designed as folding shutters, so that it is possible to dispense with the winding device. The two types of roller are in (partially) closed position as close as possible to each other, as shown in the side view in 9 is shown and can be moved accordion-like between the open and the closed position together. The folding of the intermediate roller blind 7 is dimensioned such that the intermediate roller blind 7 in the folding of the right and left positioned roller blinds 1 can be inserted. For fixing in the upper and lower area, the roller blinds 1 and the or the intermediate roller blind (s) only schematically illustrated fasteners 3 on, in the lower area, for example, as a roller blind 2 can be trained. Also, a corresponding sealing lip 4 be provided to ensure the lower seal. Finally, the blind device has corresponding guide cables 14 with corresponding end pieces 16 with their help they cut into corresponding cuts 15 , for example, the frame 5 a cooling cabinet, can be hung.

Finally shows 12 another alternative of the roller blind 2 , This is formed in this case as a cassette-like profile construction, in the interior of the take-up roller 71 of the intermediate roller blind 7 is arranged. The roller blind 2 For example, it can be constructed in such a way that it automatically aligns itself in accordance with FIG. 12 by its own weight and the position of its center of gravity in the closed position of the roller blind device in order to achieve vertical alignment of the sealing lip 4 sure. In addition, in this embodiment, by tuning the length of the roller blinds 1 as well as the intermediate roller blind 7 be achieved that the two webs abut each other in the closed position virtually without spacing. If the blind device finally transferred to the open position, both the roller blinds 1 as well as the intermediate roller blind 7 wound up accordingly. As a result, both the winding diameter of the above winding roller 10 as well as the lower winding roller 71 increases, increases the distance between shade 1 and intermediate roller blind 7 , so that no annoying friction arises.

Incidentally, the invention is not limited to the illustrated embodiments. Rather, all combinations of the individual features described, as shown or described in the claims, the description and the figures and as far as a corresponding combination is technically possible or seems reasonable, the subject of the invention.

For example, in the manufacture of blinds 1 . 1' or the intermediate roller blinds 7 Fabric panels are used, the side bowls. In this effect, which is actually undesirable in the Rollostoffherstellung, the side edges curl in one direction. If such a substance is used in such a way that opposite areas of roller blind 1 respectively. 1' and intermediate roller blind 7 Rolling in the mutually facing direction, so touch the respective panels in this area, whereas the remaining area of the tracks have a distance from each other. In the end so creates an enlarged seal, while can form between the remaining sections insulating air cushion.

LIST OF REFERENCE NUMBERS

1

blind web

1'

additional shade

2

Rollo staff

3

attachment

4

sealing lip

5

frame

6

Side wall

7, 7 '

between Rollo

10

winding roller

11, 11 '

attachment point

12

Winding roller bearings

13

gap

14

guide rope

15

incision

16

tail

21

recess

22

clamp

24

groove

51

cover

61

blanket

62

ground

71

winding roller

72

rail

73

rail suspension

74

slide groove

75

gap

76

Faceplate

77

half shell

78

slide

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10021656 A1 [0002]

Claims (26)

Roller blind device with at least two adjacent roller blind webs ( 1 ), which are movable between an open and a closed position, wherein at least in the closed position between the roller blind webs ( 1 ) A gap ( 13 ) is present, characterized in that the roller blind device at least one Zwischenrollo ( 7 ) having the gap ( 13 ) in the closed position of the blinds ( 1 ) at least partially overlapped in a plan view. Roller blind device according to the preceding claim, characterized in that the roller blind device comprises a, at least one winding roller ( 10 ) comprehensive, winding roller device for winding and unwinding the roller blinds ( 1 ) having. Roller blind device according to one or more of the preceding claims, characterized in that the roller blind device has at least one winding roller ( 71 ) for winding and unwinding the intermediate roller blind ( 7 ) having. Roller blind device according to the preceding claim, characterized in that the at least one intermediate roller blind ( 7 ) in unwound position on the roller blinds ( 1 ) facing side of the winding roller ( 71 ) is arranged. Roller blind device according to claim 3, characterized in that the at least one intermediate roller blind ( 7 ) in unwound position on the roller blinds ( 1 ) facing away from the winding roller ( 71 ) is arranged. Roller blind device according to one or more of the preceding claims, characterized in that the intermediate roller blind ( 7 ) centered with respect to the gap ( 13 ) between two adjacent roller blinds ( 1 ) is arranged. Roller blind device according to one or more of the preceding claims, characterized in that the width of the intermediate roller blind ( 7 ) the width of the roller blinds ( 1 ) corresponds. Roller blind device according to one or more of the preceding claims, characterized in that at at least one lateral end of the roller blind device an intermediate roller blind ( 7 ' ) arranged with the adjacent roller blind ( 1 ) flush and in particular half the width of a roller blind ( 1 ) having. Roller blind device according to one or more of the preceding claims, characterized in that the roller blind device has at least one roller blind rod ( 2 ), which at the roller blinds ( 1 ) is attached. Roller blind device according to the preceding claim, characterized in that the winding roller ( 71 ) of the intermediate roller blind ( 7 ) on or on the roller blind rod ( 2 ) is stored. Roller blind device according to one or more of claims 9 and 10, characterized in that the roller blind rod ( 2 ) as a half shell ( 77 ) is formed and the recording of the winding roller ( 71 ) of the intermediate roller blind ( 7 ) serves. Roller blind device according to one or more of claims 9 to 11, characterized in that on the outer circumference of the roller blind rod ( 2 ) a sealing lip ( 4 ) is arranged. Roller blind device according to the preceding claim, characterized in that the sealing lip ( 4 ) in the closed position of the blinds ( 1 ) approximately parallel to the blinds ( 1 ) and in the open position of the blinds ( 1 ) assumes a position deviating therefrom and in particular perpendicular to the roller blind webs ( 1 ) runs. Roller blind device according to one or more of claims 9 to 13, characterized in that the roller blind webs ( 1 ) on the outer periphery of the roller blind rod ( 2 ) by means of at least one clamping piece ( 22 ) are attached. Roller blind device according to the preceding claim, characterized in that the clamping piece ( 22 ) of the holder of the sealing lip ( 4 ) and in particular a groove ( 24 ) for fixing the sealing lip ( 4 ) having. Roller blind device according to one or more of claims 9 to 15, characterized in that the roller blind rod ( 2 ) at its inner circumference at least one recess ( 21 ) for receiving a bearing for the winding roller ( 71 ). Roller blind device according to the preceding claim, characterized in that the bearing consists of a half-shell ( 77 ) in the roller blind ( 2 ) by means of a slide rail ( 78 ) in the recess ( 21 ) of the roller blind ( 2 ) is displaceably mounted, and from face plates ( 76 ) at both ends of the half-shell ( 77 ) for storing the winding roller ( 71 ) are attached. Roller blind device according to one or more of claims 3 to 17, characterized in that for rolling up the intermediate roller blind ( 7 ) the winding roller ( 71 ) of the intermediate roller blind ( 7 ) has a spring drive. Roller blind device according to one or more of the preceding claims, characterized characterized in that for fixing the intermediate roller blind ( 7 ) a rail ( 72 ) is provided in the region of the winding roller device. Roller blind device according to one or more of the preceding claims, characterized in that the roller blind device has at least one additional roller blind ( 1' ), which together with a roller blind ( 1 ) can be wound up and unwound with the aid of the winding roller device, wherein the roller blind webs ( 1 ; 1' ) in the closed position, in particular parallel to each other. Roller blind device according to the preceding claim, characterized in that the additional roller blind ( 1' ) with the roller blind rod ( 2 ) connected is. Roller blind device according to one or more of claims 20 and 21, characterized in that the roller blind webs ( 1 ; 1' ) are arranged in the closed position at a distance (A) to each other and are wound over one another in the open position. Roller blind device according to one or more of claims 20 to 22, characterized in that the at least one intermediate roller blind ( 7 ) in unwound position between a roller blind ( 1' ) and an additional roller blind ( 1' ) runs. Roller blind device according to one or more of claims 20 to 23, characterized in that the roller blind webs ( 1 ; 1' ) are mounted at a distance on the circumference of the winding roller device, so that in the developed position of the roller blind webs ( 1 ; 1' ) a distance (A) between the blinds ( 1 ; 1' ) exists. Roller blind device according to one or more of claims 20 to 24, characterized in that the roller blind webs ( 1 ; 1' ) are connected together at their ends and in the unwound position at least one winding roller ( 10 ) of the winding roller device and the roller blind rod ( 2 wrap around). Roller blind device according to one or more of the preceding claims, characterized in that the roller blind webs ( 1 ) and / or the at least one intermediate roller blind ( 7 ) is designed as a folding door and is folded in a zigzag manner at least in the open position.

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