EP2504515B1 - Roller blind device - Google Patents

Roller blind device Download PDF

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Publication number
EP2504515B1
EP2504515B1 EP10779829.0A EP10779829A EP2504515B1 EP 2504515 B1 EP2504515 B1 EP 2504515B1 EP 10779829 A EP10779829 A EP 10779829A EP 2504515 B1 EP2504515 B1 EP 2504515B1
Authority
EP
European Patent Office
Prior art keywords
roller blind
roller
webs
winding
blind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10779829.0A
Other languages
German (de)
French (fr)
Other versions
EP2504515A2 (en
Inventor
Albert Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from DE102009055724A external-priority patent/DE102009055724A1/en
Priority claimed from DE102010031082A external-priority patent/DE102010031082A1/en
Application filed by Individual filed Critical Individual
Publication of EP2504515A2 publication Critical patent/EP2504515A2/en
Application granted granted Critical
Publication of EP2504515B1 publication Critical patent/EP2504515B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0469—Details, e.g. night covers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2423—Combinations of at least two screens
    • E06B2009/2447—Parallel screens
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B2009/405—Two rollers

Definitions

  • the invention relates to a roller blind device in particular for access openings of cooling furniture with axially adjacent roller blinds 1, which are together up on a winding roller 10 and unrolled, and between each of which a septrollo is arranged, which is up with the roller blinds 1 and unrolled and in lowered position a resulting between the roller blinds 1 gap 13 covered by overlapping the adjacent roller blind.
  • roller blind device is from the DE 201 01 977 U1 known.
  • This known roller blind has proven to be satisfactory in practice. Although the cover of the columns 13 is achieved, but the drive and the rolling mechanics are complicated and expensive. Another disadvantage is that the assembly of the intermediate roller blind 7 can only be done on site.
  • roller blind device in which roller blinds 1 and 1 'arranged in parallel on a winding roller 10 are co-rolled together.
  • a roller blind rod 2 is provided, at the periphery of the roller blinds 1 and 1 'are each fixed so that in the lowered position the roller blinds have a distance A to each other, so that an insulating air space is formed, while in the wound state both Webs 1 and 1 'are rolled over one another.
  • 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.
  • a high degree of insulation is important.
  • the roller blinds When rolled up, the roller blinds are rolled up one above the other so that reels of normal and customary size are achieved.
  • roller blinds of 250 and 375 cm in length, but also longer, are required.
  • These roller blinds are modular, ie they are composed of roller blind segments which are coupled in series. Between the roller blind segments are shaft bearings to support these long waves of the blind device 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 are a major weakness in terms of the efficiency of the roller blind, because here not only no cover is present, but also air flows between the furniture inside and outside can occur. It has already been attempted to cover this column by arranging brush-like edge strips on the side edges of the roller blinds in order to prevent undesired temperature exchange.
  • roller blind has been proposed with axially adjacent roller blinds, which are collectively up on a winding roller 10 and unrolled and between each of which a septrollo 7 is arranged to cover the resulting gap between the roller blinds ( DE 201 01 977 U1 ).
  • This intermediate roller blind overlaps the edges of the roller blind webs and can be rolled up and down with them via a separate drive and a transmission gear.
  • the drive of the insects is synchronous with the roller blinds complicated and expensive, especially the roller blind must be mounted on site, as the intermediate roller blind in the blinds must intervene to reach by overlapping the edges to cover the gap.
  • the object of the invention is to provide a roller blind device with improved insulation, which is still simple and functional.
  • a roller blind rod 2 is arranged, which serves for the storage of winding rollers 71 for the insects 7.
  • a separate drive for the intermediate roller-winding roller 71 is avoided, since this is moved up and down by the up and down movement of the roller blind with this. Due to the displaceable mounting of the winding roller 71, it can be moved to its operating position after complete installation of the roller blind device.
  • a spring drive for the winding roller of the intermediate roller blind 7 is provided.
  • the blind device has at least one further roller blind 1 ', which can be wound up and unwound together with the former blind web 1 with the winding roller 10, and the roller blinds 1 and 1 'in the closed position parallel to each other. This creates an air space between the two roller blinds 1 and 1 ', which significantly enhances the insulating effect of the roller blinds.
  • the two roller blinds 1 and 1 ' are attached to a roller blind rod so that in the closed position, a distance A between the two blind sheets is formed, which are wound one above the other in the open position.
  • the roller blinds are expediently attached at a distance on the circumference of the winding roller 10, so that a desired distance A between the roller blinds in the developed position arises.
  • the roller blinds 1; 1 'interconnected so that they wrap around the winding roller and the roller blind rod 2 in the unwound position. In the wound position both blinds 1; 1 'wound on the winding roller 10 one above the other.
  • roller blinds 1 are located; 1 'and intermediate blind 7 as close as possible to each other, so that an air exchange between both sides of the blind device is particularly efficiently prevented or minimized.
  • the intermediate roller blind 7 is arranged in the unwound position on the side of the winding roller 10 facing away from the roller blind webs 1 and 1 '.
  • the or the intermediate roller blinds 7 have a width which is substantially equal to the width of the blind sheets 1; 1 ', the blind sheets 1; 1 'and the opposite and also adjacent to each other arranged insects 7 a kind of double wall.
  • an air layer which further improves the insulating effect of the roller blind device, since air is a poor conductor of heat.
  • the roller blind rod 2 is preferably designed as a half-shell for receiving the winding roller 71 of the intermediate roller blind 7. This gives the winding roller 71 with the raising and lowering of the roller blind rod 2 their drive.
  • the roller blinds 1; 1 ' are attached to the outer periphery of the roller blind rod 2 by means of a clamping piece.
  • a further clamping piece is provided with a groove for fixing the sealing lip 4.
  • the access opening of the refrigerator is limited by a frame 5, which has on its side facing the bottom a sealing stopper 50, against which the sealing lip 4 in the closed Position of the roller blind 1; 1 'is pressed.
  • the roller blind has, at its inner periphery, a recess for supporting the winding roller 71 on the roller blind rod 2.
  • the bearing of the winding roller 71 of the intermediate roller blind 7 consists of a half shell 77 which can be displaced in the roller blind rod 2 by means of a slide rail 78 in the recess 21 of the roller blind rod 2 is stored.
  • the winding roller 71 of the intermediate roller blind 7 together with its mounting is displaceable relative to the roller blind rod 2 and the roller blinds 1 and 1 fastened thereto. This has the great advantage that the blind device can be delivered completely assembled and installed and the intermediate roller blind can be moved in each case after installation in the operating position in a simple manner.
  • the width of the roller blinds of the intermediate roller blind 7 corresponds to the width of the roller blinds 1; 1'.
  • an intermediate roller blind 7 ' is arranged, which is half the width of the roller blind webs 1; 1 'and thus allows an offset of the intermediate roller blind 7 relative to the blind sheet 1.
  • the access opening of the refrigerated cabinet is limited by a frame having on its side facing the bottom a sealing stop against which the sealing lip is pressed in the closed position of the roller blind.
  • the roller blind rod has at its inner periphery a recess for receiving the bearing for the winding roller.
  • the storage of the winding roller of the insects preferably consists 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 has face plates, which are attached to both ends of the half-shell for supporting the winding roller.
  • the width of the roller blinds of the intermediate roller blind preferably corresponds to the width of the roller blinds.
  • an intermediate roller blind is preferably arranged which has half the width of the roller blind webs.
  • the winding shaft of the refrigerated cabinet is preferably divided into modules of about 2,500 mm or 3,750 mm.
  • the winding shaft of a roller blind module is preferably composed of 2 or 3 segments with a length of 1,250 mm each.
  • a separate drive shaft is preferably provided which extends over the length of the cabinet parallel to the winding roller and is driven by a motor.
  • each module of the winding shaft an overdrive by means of a toothed belt or the like.
  • the overshoot preferably takes place between two roller blind modules.
  • each roller blind module is driven by its own tubular motor.
  • the roller blind device is characterized by a switching device which starts the individual roller blind modules with a time delay in succession.
  • roller blinds and / or the intermediate roller blind are preferably designed as folding shutters and folded in a zigzag manner at least in the open position.
  • FIG. 1 is a cooling cabinet with a side wall 6, a frame 5 for limiting the goods access opening and a bottom 62 and a ceiling 61 and an aperture 51 partially shown in cross section.
  • the refrigerator is equipped with a roller blind device for closing the goods access opening.
  • This roller blind device consists of roller blinds 1 and 1 ', for which a winding roller 10 for winding the two blind sheets 1 and 1' and a roller blind rod 2 is provided. Between the two roller blinds 1 and 1 'a further roller blind is arranged as insectsrollo 7, but for a separate winding a winding roller 71, arranged on the roller blind rod 2, and a rail 72 is provided for attachment of the free end of the roller blind of the intermediate roller blind 7.
  • the winding roller 10 is driven 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 snap-action rollers.
  • the intermediate roller 7 is also corresponding the movement of the roller blind rod 2 and unrolled.
  • winding roller bearings 12 are fixed to the winding roller 10, where in extension of the winding roller bearing 12, a rail mounting 73 is arranged for the rail 72.
  • the rail 72 is thus arranged below the winding roller 10 between the roller blinds 1, 1 '.
  • the rail 72 has a sliding groove 74, in which the free end of the roller blind of the intermediate roller blind 7 is 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 and the roller blind rod 2 are looped by the resulting endless blind sheet.
  • the roller blinds 1 and 1 'joined together to form a continuous web are fastened to the roller blind rod 2 by a clamping piece 22.
  • the clamping piece 22 therefore has a groove 24, which serves to attach a sealing lip 4 (see FIG. 4 ), which lays against the frame 5 of the access opening.
  • a magnetic strip may additionally be provided in the sealing lip. But the ends of the roller blinds 1 and 1 'can also be attached to the roller blind 2 in each case.
  • the roller blind 2 can therefore advantageously a clamping piece 22 'may be provided, on which a sealing lip 4' (see FIG. 12 ) is attached. Behind this sealing lip 4 'is a frame seal 41st arranged, which impinges on lowering of the roller blind at the end of the lowering movement on a sealing stopper 50 and thereby the seal is also given down in the lowered position. At the same time, the sealing lip 4 'is pressed due to the internal pressure against a sealing stop 50, so that no cold air at the bottom of the roller blind 1; 1 'can escape. Dodge the blinds 1; 1 'relative to the internal pressure is not possible because the rigid sealing lip 4' rests against the sealing stop 50 and so the end of the roller blind 1; 1 'can not be pushed further out.
  • the diameter of the roller shutter formed as a half-shell 77 2 is determining for the distance A of the two roller blinds 1 and 1 '.
  • the attachment points 11 and 11 'from the roller blinds 1, 1' formed endless blind sheet is attached to the winding roller 10.
  • the distance A of the two roller blinds 1 and 1 ' is given. Since here the attachment points 11 and 11 'are offset by 180 degrees to each other on the circumference of the winding roller 10, practically the diameter of the winding roller 10 is decisive for the distance A.
  • the blind sheets 1 and 1' joined together to form an endless web wrap around the roller blind rod 2 which is shaped as a half-shell 77 and has a recess 21 on its inner circumference.
  • This half-shell 77 is so large that the roller blind 2, the winding roller 71 of the intermediate roller blind 7 and in the wound position (see FIG. 2 ) can also accommodate the wound intermediate roller blind 7.
  • the side of the winding roller 71 arranged bearing 76 for the winding roller 71 of the insects 7 are interconnected by the half-shell 77, which is mounted by means of a bearing disc 78 in the recess 21 axially displaceable in the roller blind 2.
  • the intermediate roller blind 7 can be moved axially in the roller blind rod 2 in a desired position.
  • the roller blind device, including the intermediate roller blind 7, is delivered completely pre-assembled for installation in the refrigerated cabinet.
  • the half-shell 77 is arranged with the intermediate roller 7 in the sliding groove 74 of the roller blind bar so that intermediate roller blind 7 and roller blinds 1, 1 'congruent are.
  • the intermediate roller blind 7 is then moved into a position centrally of the gaps 13.
  • the roller blind rod 2 extends over the width of the roller blind 1 or 1 ', as seen from FIG. 3 is apparent.
  • roller blind rods 2 of the roller blinds 1 and 1 'arranged side by side are connected together to form a roller blind rod 2 extending over the entire length of the cooling unit.
  • the free ends of the intermediate blinds 7 in the sliding groove 74 of the rail 72 can follow this shift.
  • the roller blinds of the Swissrollos 7 are as wide as the roller blinds 1; 1'.
  • the intermediate roller blind 7 is in each case displaceable centrally of the gaps 13. In this way, not only the columns 13 are covered by the intermediate roller blinds 7 and the gaps 75 between the intermediate roller blinds 7 of the roller blinds 1 and 1 ', but there are two air chambers through which the blind device receives an extremely good insulation effect.
  • intermediate blinds 7 ' are provided, which have only half the width of the roller blinds 1 and 1'.
  • the intermediate roller blind 7 ' can be pushed up to the wall 6 in this way.
  • the bearing of the winding roller 71 of the intermediate roller blind 7 ' is formed as a face plate 76 which can slide along the wall 6 of the cooling cabinet along.
  • FIG. 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 axially adjacent roller blinds 1. On parallel roller blinds 1 'has been omitted, but the columns 13 between the roller blinds 1 are also overlapped by one or more intermediate blinds 7 (which does not necessarily mean that the blinds 1 and the intermediate blinds 7 must 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. It can be seen that the insectsos 7 are arranged in the developed position on the side facing away from the roller blinds 1 side of the winding rollers 71, so that said air cushion can form.
  • the mounting of the rails 72 which is not shown here deliberately, can be done in a similar or the same manner as described in connection with the previous figures.
  • the insects 7 can advantageously have the same width as the roller blinds 1.
  • the existing columns 13 and 75 are minimized, and it also takes place in accordance with mutual central alignment a maximum overlap area, which again can form the said air cushion ,
  • FIG. 8 a section of a roller blind device according to the invention is shown in which the intermediate roller blinds 7 are arranged in the developed position on the roller blinds 1 side facing the winding rollers 71.
  • no air cushion can form here.
  • an excellent insulation effect is achieved because the distance between the intermediate blinds 7 and the roller blinds 1 minimized and thereby a possible air exchange is largely prevented by the roller blind device.
  • This can be done, for example, reinforced by the fact that the roller blinds 1 and 7 have areas that are equipped with adhesives and are thus interconnected.
  • roller blind 1 and intermediate blind 7 show the Figures 9 and 10 ,
  • the said elements are designed as folding shutters, so that it is possible to dispense with a 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 FIG. 9 is shown. They can be moved accordion-like between the open and the closed position.
  • the folding of the intermediate roller blind 7 is dimensioned such that the intermediate roller blind 7 can be inserted into the folding of the roller blind webs 1 respectively positioned on the right and left.
  • the roller blinds 1 and the or the intermediate roller blind (s) 7 only schematically shown fasteners 3, which may be formed in the lower region, for example, as a roller blind rod 2. Also, a corresponding sealing lip 4 may be provided to ensure the lower seal.
  • the blind device has corresponding guide cables 14 with corresponding end pieces 16, by means of which they can be suspended in corresponding cuts 15, for example of the frame 5 of a refrigerated cabinet.
  • FIG. 11 shows a further alternative of the formation 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 can be constructed, for example, such that it automatically by its own weight and the position of its center of gravity in the closed position of the blind device accordingly FIG. 11 aligns to ensure vertical alignment of the sealing lip 4.
  • FIG. 11 aligns to ensure vertical alignment of the sealing lip 4.
  • the drive of such a blind device is usually carried out so that a row of furniture is driven up to a length of 12.50 m by a motor.
  • a tubular motor is arranged in the winding shaft 10, which then drives further modules via adapter couplings up to a total length of 12.50 m.
  • the overall construction Due to the versatile requirements (multi-layer fabric, finishing profiles on the lower edge of the roller blind, etc.), the overall construction has become so heavy that only a considerably shorter distance can be driven with a tubular motor in the known dimensions and correspondingly shorter lengths can be driven by more motors have to.
  • the individual motors do not run synchronously because of not exactly the same speed, this deficiency can only be remedied with a complex synchronization device.
  • Fig. 13 schematically shows such a solution.
  • a continuous drive shaft 84 is installed over the entire length of the cabinet, from which the individual rolling modules 8 are driven by means of a strong drive motor 85 and toothed belt 83. If the overshoot is placed between two rolling modules 8, two modules 8 can be driven to the left and to the right, without any reinforcement of the winding shaft 10.
  • lengths of up to 20 m can be driven without increasing or increasing the drive parts, so that no additional space required.
  • the winding shaft of the cabinet is divided into modules of about 2,500 mm or 3,750 mm. These modules 8 are also composed according to the fabric widths for the shade of two or three segments 81 with a length of 1,250 mm each. This standardization of components also results in great simplifications and savings in production. In addition, it has been shown that such wavelengths can be used easily matched to the fabric widths.
  • a separate drive shaft outside of the cabinet which extends over the entire length of the cabinet parallel to the winding roller and is driven by a single motor 85.
  • the overshoot to each module 8 of the winding shaft 10 by means of a toothed belt 83 or a similar transmission element, such as a chain.
  • the overrun preferably takes place between two rolling modules 8, the drive can be further simplified. It is only an overdrive needed for 2 modules without burdening the winding shaft 10 more. Too strong winding shafts 10 can be avoided.
  • each rolling module 8 can be driven by its own tubular motor. Then, however, it is necessary to provide a switching device that starts the individual rolling modules 8 delayed in succession. In this way, a synchronization device can be avoided, and the different running times of the motors are compensated.
  • the roller blinds 1 and 1 'and the intermediate roller blind 7 and 7' as a folding blind ( Fig. 9 u. 10), wherein they are folded zigzag in the open position.
  • the side "shuffle" In this effect, which is actually undesirable in the Rollostoffher too, the side edges curl in one direction. If such a material is used in such a way that opposite areas of roller blind 1 or 1 'and intermediate roller 7 roll in the mutually facing direction, then the respective panels touch each other in this area, whereas the remaining area of the panels is at a distance from one another. In the end, this creates an enlarged seal, while forming between the remaining sections insulating air cushion.

Description

Die Erfindung betrifft eine Rolloeinrichtung insbesondere für Zugriffsöffnungen von Kühlmöbeln mit axial nebeneinander angeordneten Rollobahnen 1, die gemeinsam auf eine Wickelwalze 10 auf- und abrollbar sind, und zwischen denen jeweils ein Zwischenrollo angeordnet ist, das mit den Rollobahnen 1 auf- und abrollbar ist und in abgesenkter Position einen zwischen den Rollobahnen 1 entstehenden Spalt 13 überdeckt durch Überlappen der angrenzenden Rollobahnen 1.The invention relates to a roller blind device in particular for access openings of cooling furniture with axially adjacent roller blinds 1, which are together up on a winding roller 10 and unrolled, and between each of which a Zwischenrollo is arranged, which is up with the roller blinds 1 and unrolled and in lowered position a resulting between the roller blinds 1 gap 13 covered by overlapping the adjacent roller blind. 1

Eine derartige Rolloeinrichtung ist aus der DE 201 01 977 U1 bekannt. Diese bekannte Rolloeinrichtung hat sich in der Praxis als befriedigend erwiesen. Die Abdeckung der Spalten 13 wird zwar erreicht, aber der Antrieb und die Rollomechanik sind kompliziert und aufwendig. Nachteilig ist auch, dass die Montage des Zwischenrollos 7 erst vor Ort erfolgen kann.Such a roller blind device is from the DE 201 01 977 U1 known. This known roller blind has proven to be satisfactory in practice. Although the cover of the columns 13 is achieved, but the drive and the rolling mechanics are complicated and expensive. Another disadvantage is that the assembly of the intermediate roller blind 7 can only be done on site.

Aus der DE 100 21 656 A1 ist eine andere Rolloeinrichtung bekannt, bei der auf eine Wickelwalze 10 parallel angeordnete Rollobahnen 1 und 1' gemeinsam aufgerollt werden. Am freien Ende der Rollobahnen ist ein Rollostab 2 vorgesehen, an dessen Umfang die Rollobahnen 1 und 1' jeweils so befestigt sind, dass in der abgesenkten Position die Rollobahnen einen Abstand A zueinander aufweisen, so dass ein isolierender Luftraum entsteht, während im aufgewickelten Zustand beide Bahnen 1 und 1' übereinanderliegend aufgerollt sind. Durch den durch den Abstand A entstehenden Luftraum wird zwar eine gute Isolierung erreicht, jedoch ist das Problem der Spalte 13 zwischen den axial nebeneinander angeordneten Rollos in abgesenkter Position nicht gelöst.From the DE 100 21 656 A1 another roller blind device is known, in which roller blinds 1 and 1 'arranged in parallel on a winding roller 10 are co-rolled together. At the free end of the roller blinds a roller blind rod 2 is provided, at the periphery of the roller blinds 1 and 1 'are each fixed so that in the lowered position the roller blinds have a distance A to each other, so that an insulating air space is formed, while in the wound state both Webs 1 and 1 'are rolled over one another. Although the resulting by the distance A airspace good insulation is achieved, however, the problem of the column 13 between the axially juxtaposed blinds in lowered position is not solved.

Rolloeinrichtungen dieser Art werden für verschiedene Zwecke eingesetzt, üblicherweise für Fenster zur Abschirmung gegen Licht- oder Sonneneinstrahlungen, aber auch für Kühl- oder Warenregale, um in verkaufsfreien Zeiten die Regale zu schließen und den Verlust von Kühlleistung zu vermindern. Gerade bei letzteren Rolloeinrichtungen kommt es auf eine hohe Isolierwirkung an. Dadurch, dass im abgesenkten Zustand zwischen den zwei Rollobahnen 1 bzw. 1' ein Luftraum geschaffen wird, wird eine gute Isolierwirkung erreicht, so dass sich auch dünne, leicht wickelbare Stoffe für die Rollobahnen 1 verwenden lassen. In aufgewickeltem Zustand sind die Rollobahnen übereinanderliegend aufgerollt, so dass dennoch Wickelrollen normaler und üblicher Größe erreicht werden.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. The fact that an air space is created in the lowered state between the two roller blinds 1 and 1 ', a good insulation effect is achieved, so that it is also possible to use thin, easily windable fabrics for the blinds 1. When rolled up, the roller blinds are rolled up one above the other so that reels of normal and customary size are achieved.

Da sich die Kühlregale über große Längen erstrecken, sind Rolloeinrichtungen von 250 und 375 cm Länge, aber auch länger, gefordert. Diese Rolloeinrichtungen sind modular aufgebaut, d.h. sie werden aus Rollosegmenten, die in Reihe gekoppelt sind, zusammengesetzt. Zwischen den Rollosegmenten befinden sich Wellenlager, um diese langen Wellen der Rolloeinrichtung abzustützen und ein Durchhängen zu vermeiden. Im Bereich dieser Wellenlager entstehen zwangsläufig Spalten zwischen den einzelnen Rollostoffbahnen. Diese Spalten sind mindestens 10 bis 25 mm breit und sind eine große Schwachstelle in Bezug auf die Effizienz der Rolloeinrichtung, weil hier nicht nur keine Abdeckung vorhanden ist, sondern zusätzlich Luftströmungen zwischen dem Möbelinnen- und dem Außenbereich auftreten können. Man hat zwar schon versucht, durch Anordnung von bürstenartigen Kantenstreifen an den Seitenrändern der Rollobahnen diese Spalte zu überdecken, um einen unerwünschten Temperaturaustausch zu verhindern. Allerdings sind diese bürstenartigen Kantenstreifen nicht in der Lage, den Temperaturaustausch sowie Luftströmungen befriedigend zu verhindern. Außerdem nutzen sich diese bürstenartigen Kantenstreifen, die an den Lagern der Rollowickelwalze entlang streifen müssen und dort zurückgebogen werden, relativ schnell ab, so dass die Wirkung mit dem Gebrauch immer geringer wird. Die verschlissenen Kantenstreifen müssen ersetzt werden bzw. die Rollobahnen müssen ausgetauscht werden, was äußerst aufwendig ist.Since the refrigerated shelves extend over long lengths, roller blinds of 250 and 375 cm in length, but also longer, are required. These roller blinds are modular, ie they are composed of roller blind segments which are coupled in series. Between the roller blind segments are shaft bearings to support these long waves of the blind device 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 are a major weakness in terms of the efficiency of the roller blind, because here not only no cover is present, but also air flows between the furniture inside and outside can occur. It has already been attempted to cover this column by arranging brush-like edge strips on the side edges of the roller blinds in order to prevent undesired temperature exchange. However, these brush-like edge strips are not able to satisfactorily prevent the temperature exchange and air currents. In addition, these brush-like edge strips, which have to strip along the bearings of the roller blind roller and are bent back there, use relatively quickly, so that the effect becomes less and less with use. The worn edge strips must be replaced or the roller blinds must be exchanged, which is extremely expensive.

Zur Abstellung dieses Mangels ist schon eine Rolloeinrichtung mit axial nebeneinander angeordneten Rollobahnen vorgeschlagen worden, die gemeinsam auf eine Wickelwalze 10 auf- und abrollbar sind und zwischen denen jeweils ein Zwischenrollo 7 angeordnet ist, um den zwischen den Rollobahnen entstehenden Spalt abzudecken ( DE 201 01 977 U1 ). Dieses Zwischenrollo überlappt die Ränder der Rollobahnen und ist mit diesen über einen gesonderten Antrieb und ein Übersetzungsgetriebe auf- und abrollbar. Zwar ist durch die Abdeckung des Spaltes zwischen nebeneinander angeordneten Rollos eine wesentliche Verbesserung der Isolierwirkung gegen austretende Kaltluft gegeben, jedoch ist der Antrieb des Zwischenrollos synchron mit den Abdeckrollos kompliziert und aufwendig, insbesondere muss die Rolloeinrichtung vor Ort montiert werden, da das Zwischenrollo in die Rollobahnen eingreifen muss, um durch Überlappung der Ränder ein Abdecken des Spaltes zu erreichen.To remedy this deficiency, a roller blind has been proposed with axially adjacent roller blinds, which are collectively up on a winding roller 10 and unrolled and between each of which a Zwischenrollo 7 is arranged to cover the resulting gap between the roller blinds ( DE 201 01 977 U1 ). This intermediate roller blind overlaps the edges of the roller blind webs and can be rolled up and down with them via a separate drive and a transmission gear. Although the coverage of the gap between juxtaposed blinds a significant improvement of the insulating effect against escaping cold air given, however, the drive of the Zwischenrollos is synchronous with the roller blinds complicated and expensive, especially the roller blind must be mounted on site, as the intermediate roller blind in the blinds must intervene to reach by overlapping the edges to cover the gap.

Aufgabe der Erfindung ist es, eine Rolloeinrichtung mit verbesserter Isolierwirkung zu schaffen, die dennoch einfach und funktionstüchtig ist.The object of the invention is to provide a roller blind device with improved insulation, which is still simple and functional.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Erfindungsgemäß wird vorgeschlagen, dass am freien Ende der Rollobahnen ein Rollostab 2 angeordnet ist, der zur Lagerung von Wickelwalzen 71 für die Zwischenrollos 7 dient. Dadurch wird ein separater Antrieb für die Zwischenrollo-Wickelwalze 71 vermieden, da diese durch die Auf- und Abbewegung des Rollostabes mit diesem auf- und abbewegt wird. Durch die verschiebbare Lagerung der Wickelwalze 71 kann diese nach kompletter Montage der Rolloeinrichtung in ihre Betriebsstellung verschoben werden. Zur Unterstützung der Rollbewegung und Gespannthalten des Zwischenrollos 7 ist ein Federantrieb für die Wickelwalze des Zwischenrollos 7 vorgesehen. Die Rolloeinrichtung besitzt wenigstens eine weitere Rollobahn 1', die gemeinsam mit der ersteren Rollobahn 1 mit der Wickelwalze 10 auf- und abwickelbar ist, und die Rollobahnen 1 und 1' in geschlossener Stellung parallel zueinander verlaufen. Dadurch entsteht ein Luftraum zwischen den beiden Rollobahnen 1 und 1', der die Isolierwirkung der Rollobahnen erheblich verstärkt.This object is solved by the features of claim 1. According to the invention it is proposed that at the free end of the roller blinds a roller blind rod 2 is arranged, which serves for the storage of winding rollers 71 for the Zwischenrollos 7. As a result, a separate drive for the intermediate roller-winding roller 71 is avoided, since this is moved up and down by the up and down movement of the roller blind with this. Due to the displaceable mounting of the winding roller 71, it can be moved to its operating position after complete installation of the roller blind device. To support the rolling motion and keeping the intermediate roller blind 7, a spring drive for the winding roller of the intermediate roller blind 7 is provided. The blind device has at least one further roller blind 1 ', which can be wound up and unwound together with the former blind web 1 with the winding roller 10, and the roller blinds 1 and 1 'in the closed position parallel to each other. This creates an air space between the two roller blinds 1 and 1 ', which significantly enhances the insulating effect of the roller blinds.

Zweckmäßig sind die beiden Rollobahnen 1 und 1' an einem Rollostab so befestigt, dass in der geschlossenen Stellung ein Abstand A zwischen den beiden Rollobahnen entsteht, die in geöffneter Stellung übereinanderliegend aufgewickelt werden. Die Rollobahnen sind zweckmäßig in einem Abstand am Umfang der Wickelwalze 10 befestigt, so dass ein gewünschter Abstand A zwischen den Rollobahnen in abgewickelter Stellung entsteht. An ihren Endpunkten sind die Rollobahnen 1; 1' miteinander verbunden, so dass sie in abgewickelter Stellung die Wickelwalze sowie den Rollostab 2 umschlingen. In aufgewickelter Stellung sind beide Rollos 1; 1' auf die Wickelwalze 10 übereinander aufgewickelt.Suitably, the two roller blinds 1 and 1 'are attached to a roller blind rod so that in the closed position, a distance A between the two blind sheets is formed, which are wound one above the other in the open position. The roller blinds are expediently attached at a distance on the circumference of the winding roller 10, so that a desired distance A between the roller blinds in the developed position arises. At their end points, the roller blinds 1; 1 'interconnected so that they wrap around the winding roller and the roller blind rod 2 in the unwound position. In the wound position both blinds 1; 1 'wound on the winding roller 10 one above the other.

Auch ist es äußerst vorteilhaft, wenn das Zwischenrollo 7 in abgewickelter Stellung auf der den Rollobahnen 1; 1' zugewandten Seite der Wickelwalze 10 angeordnet ist. Hierdurch liegen Rollobahnen 1; 1' und Zwischenrollo 7 möglichst dicht aneinander an, so dass ein Luftaustausch zwischen beiden Seiten der Rolloeinrichtung besonders effizient verhindert bzw. minimiert wird.Also, it is extremely advantageous if the intermediate roller 7 in unwound position on the roller blinds 1; 1 'facing side of the winding roller 10 is arranged. As a result, roller blinds 1 are located; 1 'and intermediate blind 7 as close as possible to each other, so that an air exchange between both sides of the blind device is particularly efficiently prevented or minimized.

Vorteilhaft kann es aber auch sein, wenn das Zwischenrollo 7 in abgewickelter Stellung auf der den Rollobahnen 1 und 1' abgewandten Seite der Wickelwalze 10 angeordnet ist. Insbesondere wenn das bzw. die Zwischenrollos 7 eine Breite aufweisen, die im Wesentlichen der Breite der Rollobahnen 1; 1' entspricht, bilden die Rollobahnen 1; 1' und die gegenüber und ebenfalls benachbart zueinander angeordneten Zwischenrollos 7 eine Art Doppelwandung. Zwischen der Schicht aus Rollobahnen 1 und 1' und der gegenüberliegenden Schicht, die aus den Zwischenrollos 7 gebildet wird, befindet sich schließlich eine Luftschicht, welche die Isolierwirkung der Rolloeinrichtung weiter verbessert, da Luft ein schlechter Wärmeleiter ist.But it may also be advantageous if the intermediate roller blind 7 is arranged in the unwound position on the side of the winding roller 10 facing away from the roller blind webs 1 and 1 '. In particular, if the or the intermediate roller blinds 7 have a width which is substantially equal to the width of the blind sheets 1; 1 ', the blind sheets 1; 1 'and the opposite and also adjacent to each other arranged Zwischenrollos 7 a kind of double wall. Finally, between the layer of roller blinds 1 and 1 'and the opposite layer, which is formed from the intermediate roller blinds 7, there is an air layer which further improves the insulating effect of the roller blind device, since air is a poor conductor of heat.

Der Rollostab 2 ist vorzugsweise als Halbschale ausgebildet zur Aufnahme der Wickelwalze 71 des Zwischenrollos 7. Dadurch erhält die Wickelwalze 71 mit dem Auf- und Absenken des Rollostabes 2 ihren Antrieb. Die Rollobahnen 1; 1' sind am äußeren Umfang des Rollostabes 2 mittels eines Klemmstückes befestigt. Zur Halterung der Dichtlippe 4 ist ein weiteres Klemmstück vorgesehen mit einer Nut zur Befestigung der Dichtlippe 4. Die Zugriffsöffnung des Kühlmöbels ist durch einen Rahmen 5 begrenzt, der an seiner dem Boden zugewandten Seite einen Dichtungsanschlag 50 aufweist, gegen den die Dichtlippe 4 in der geschlossenen Stellung des Rollos 1; 1' gepresst wird.The roller blind rod 2 is preferably designed as a half-shell for receiving the winding roller 71 of the intermediate roller blind 7. This gives the winding roller 71 with the raising and lowering of the roller blind rod 2 their drive. The roller blinds 1; 1 'are attached to the outer periphery of the roller blind rod 2 by means of a clamping piece. For holding the sealing lip 4, a further clamping piece is provided with a groove for fixing the sealing lip 4. The access opening of the refrigerator is limited by a frame 5, which has on its side facing the bottom a sealing stopper 50, against which the sealing lip 4 in the closed Position of the roller blind 1; 1 'is pressed.

Der Rollostab weist an seinem inneren Umfang eine Ausnehmung auf zur Lagerung der Wickelwalze 71 auf dem Rollostab 2. Die Lagerung der Wickelwalze 71 des Zwischenrollos 7 besteht aus einer Halbschale 77, die im Rollostab 2 mittels einer Gleitschiene 78 in der Ausnehmung 21 des Rollostabes 2 verschiebbar gelagert ist. Dadurch ist die Wickelwalze 71 des Zwischenrollos 7 samt ihrer Lagerung verschiebbar gegenüber dem Rollostab 2 und den daran befestigten Rollobahnen 1 bzw. 1'. Das hat den großen Vorteil, dass die Rolloeinrichtung komplett montiert angeliefert und eingebaut werden kann und das Zwischenrollo jeweils nach der Montage in Betriebsstellung in einfacher Weise verschoben werden kann. Die Breite der Rollobahnen des Zwischenrollos 7 entspricht der Breite der Rollobahnen 1; 1'. Dadurch wird nicht nur der Spalt 13 zwischen den Rollobahnen 1; 1' abgedeckt, sondern ein geschlossener Luftraum gebildet. Am Anfang und am Ende der Rolloeinrichtung ist ein Zwischenrollo 7' angeordnet, das die halbe Breite der Rollobahnen 1; 1' aufweist und damit einen Versatz des Zwischenrollos 7 gegenüber der Rollobahn 1 ermöglicht.The roller blind has, at its inner periphery, a recess for supporting the winding roller 71 on the roller blind rod 2. The bearing of the winding roller 71 of the intermediate roller blind 7 consists of a half shell 77 which can be displaced in the roller blind rod 2 by means of a slide rail 78 in the recess 21 of the roller blind rod 2 is stored. As a result, the winding roller 71 of the intermediate roller blind 7 together with its mounting is displaceable relative to the roller blind rod 2 and the roller blinds 1 and 1 fastened thereto. This has the great advantage that the blind device can be delivered completely assembled and installed and the intermediate roller blind can be moved in each case after installation in the operating position in a simple manner. The width of the roller blinds of the intermediate roller blind 7 corresponds to the width of the roller blinds 1; 1'. As a result, not only the gap 13 between the roller blinds 1; 1 'covered, but a closed airspace formed. At the beginning and at the end of the blind device, an intermediate roller blind 7 'is arranged, which is half the width of the roller blind webs 1; 1 'and thus allows an offset of the intermediate roller blind 7 relative to the blind sheet 1.

Vorzugsweise wird die Zugriffsöffnung des Kühlmöbels durch einen Rahmen begrenzt, der an seiner dem Boden zugewandten Seite einen Dichtungsanschlag aufweist, gegen den die Dichtlippe in der Geschlossenstellung des Rollos gepresst wird.Preferably, the access opening of the refrigerated cabinet is limited by a frame having on its side facing the bottom a sealing stop against which the sealing lip is pressed in the closed position of the roller blind.

Insbesondere weist der Rollostab an seinem inneren Umfang eine Ausnehmung auf zur Aufnahme der Lagerung für die Wickelwalze.In particular, the roller blind rod has at its inner periphery a recess for receiving the bearing for the winding roller.

Die Lagerung der Wickelwalze des Zwischenrollos besteht vorzugsweise aus einer Halbschale, die im Rollostab mittels einer Gleitschiene in der Ausnehmung des Rollostabes verschiebbar gelagert ist, und weist Planscheiben auf, die an beiden Enden der Halbschale zur Lagerung der Wickelwalze befestigt sind.The storage of the winding roller of the Zwischenrollos preferably consists 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 has face plates, which are attached to both ends of the half-shell for supporting the winding roller.

Die Breite der Rollobahnen des Zwischenrollos entspricht vorzugsweise der Breite der Rollobahnen.The width of the roller blinds of the intermediate roller blind preferably corresponds to the width of the roller blinds.

Am Anfang und am Ende der Rolloeinrichtung ist vorzugsweise ein Zwischenrollo angeordnet, das die halbe Breite der Rollobahnen aufweist.At the beginning and at the end of the roller blind device, an intermediate roller blind is preferably arranged which has half the width of the roller blind webs.

Die Wickelwelle des Kühlmöbels ist vorzugsweise in Module von etwa 2.500 mm oder 3.750 mm unterteilt.The winding shaft of the refrigerated cabinet is preferably divided into modules of about 2,500 mm or 3,750 mm.

Die Wickelwelle eines Rollo-Moduls ist vorzugsweise aus 2 oder 3 Segmenten mit einer Länge von jeweils 1.250 mm zusammengesetzt.The winding shaft of a roller blind module is preferably composed of 2 or 3 segments with a length of 1,250 mm each.

Außerhalb des Kühlmöbels ist vorzugsweise eine separate Antriebswelle vorgesehen, die sich über die Länge des Kühlmöbels parallel zur Wickelwalze erstreckt und von einem Motor angetrieben wird.Outside the refrigerator, a separate drive shaft is preferably provided which extends over the length of the cabinet parallel to the winding roller and is driven by a motor.

Vorzugsweise erfolgt zu jedem Modul der Wickelwelle ein Übertrieb mittels eines Zahnriemens oder dergleichen.Preferably, for each module of the winding shaft an overdrive by means of a toothed belt or the like.

Der Übertrieb erfolgt vorzugsweise zwischen zwei Rollo-Modulen.The overshoot preferably takes place between two roller blind modules.

Vorzugsweise ist jedes Rollo-Modul durch einen eigenen Rohrmotor angetrieben.Preferably, each roller blind module is driven by its own tubular motor.

Vorzugsweise ist die Rolloeinrichtung gekennzeichnet durch eine Schalteinrichtung, die die einzelnen Rollo-Module zeitversetzt nacheinander startet.Preferably, the roller blind device is characterized by a switching device which starts the individual roller blind modules with a time delay in succession.

Die Rollobahnen und/oder das Zwischenrollo sind vorzugsweise als Faltstore ausgebildet und zumindest in der geöffneten Stellung zickzackartig gefaltet.The roller blinds and / or the intermediate roller blind are preferably designed as folding shutters and folded in a zigzag manner at least in the open position.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnungen beschrieben. Es zeigen:

Figur 1
eine erfindungsgemäße Rolloeinrichtung in geschlossener Stellung der Rollobahnen im Querschnitt,
Figur 2
die Rolloeinrichtung gemäß Figur 1 im Querschnitt, jedoch in geöffneter Stellung der Rollobahnen,
Figur 3
ein mit einer erfindungsgemäßen Rolloeinrichtung ausgerüstetes Kühlmöbel im Aufriss,
Figur 4
Einzelheiten der Lagerung der Wickelwelle des Zwischenrollos auf dem Rollostab,
Figur 5
eine Seitenansicht einer erfindungsgemäßen Rolloeinrichtung,
Figuren 6 bis 8
schematische Perspektiven weiterer erfindungsgemäßer Rolloeinrichtungen,
Figur 9
eine Seitenansicht einer weiteren erfindungsgemäßen Rolloeinrichtung,
Figur 10
eine Frontansicht der Rolloeinrichtung gemäß Figur 9,
Figur 11
die Seitenansicht einer weiteren Ausführungsform einer erfindungsgemäßen Rolloeinrichtung,
Figur 12
die schematische Seitenansicht einer Rollostababdichtung und
Figur 13
die Seitenansicht einer weiteren erfindungsgemäßen Ausführungsform der Abdichtung im geschlossenen Zustand der Warenzugriffsöffnung.
Further details of the invention will be described with reference to the drawings. Show it:
FIG. 1
a roller blind device according to the invention in the closed position of the roller blind webs in cross section,
FIG. 2
the blind device according to FIG. 1 in cross section, but in the open position of the blinds,
FIG. 3
a refrigerated cabinet equipped with a roller blind device according to the invention, in elevation,
FIG. 4
Details of the storage of the winding shaft of the intermediate roller blind on the roller blind rod,
FIG. 5
a side view of a roller blind device according to the invention,
FIGS. 6 to 8
schematic perspectives of further roller blind devices according to the invention,
FIG. 9
a side view of another roller blind device according to the invention,
FIG. 10
a front view of the roller blind according to FIG. 9 .
FIG. 11
the side view of another embodiment of a roller blind device according to the invention,
FIG. 12
the schematic side view of a roller blind seal and
FIG. 13
the side view of another embodiment of the invention sealing in the closed state of the goods access opening.

Vorab sei erwähnt, dass in Figuren, die mehrere gleichartige Bauteile zeigen, teilweise nur eines von mehreren gleichartigen Bauteilen mit Bezugszeichen versehen ist, um eine gute Übersicht zu gewährleisten.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 Figur 1 ist ein Kühlmöbel mit einer Seitenwand 6, einem Rahmen 5 zur Begrenzung der Warenzugriffsöffnung und einem Boden 62 sowie einer Decke 61 und einer Blende 51 ausschnittsweise im Querschnitt dargestellt. Das Kühlmöbel ist mit einer Rolloeinrichtung zum Verschließen der Warenzugriffsöffnung ausgerüstet.In FIG. 1 is a cooling cabinet with a side wall 6, a frame 5 for limiting the goods access opening and a bottom 62 and a ceiling 61 and an aperture 51 partially shown in cross section. The refrigerator is equipped with a roller blind device for closing the goods access opening.

Diese Rolloeinrichtung besteht aus Rollobahnen 1 und 1', für die eine Wickelwalze 10 zum Aufwickeln der beiden Rollobahnen 1 und 1' sowie ein Rollostab 2 vorgesehen ist. Zwischen den beiden Rollobahnen 1 und 1' ist eine weitere Rollobahn als Zwischenrollo 7 angeordnet, für die jedoch zur separaten Aufwicklung eine Wickelwalze 71, angeordnet auf dem Rollostab 2, sowie eine Schiene 72 zur Befestigung des freien Endes der Rollobahn des Zwischenrollos 7 vorgesehen ist.This roller blind device consists of roller blinds 1 and 1 ', for which a winding roller 10 for winding the two blind sheets 1 and 1' and a roller blind rod 2 is provided. Between the two roller blinds 1 and 1 'a further roller blind is arranged as Zwischenrollo 7, but for a separate winding a winding roller 71, arranged on the roller blind rod 2, and a rail 72 is provided for attachment of the free end of the roller blind of the intermediate roller blind 7.

Die Wickelwalze 10 ist von Hand oder durch einen Elektromotor angetrieben, während die Wickelwalze 71 des Zwischenrollos 7 einen Federantrieb aufweist, wie er bei sogenannten Schnapprollos üblich ist. Beim Auf- und Abrollen der Rollobahnen 1 und 1' wird so das Zwischenrollo 7 ebenfalls entsprechend der Bewegung des Rollostabes 2 auf- und abgerollt.The winding roller 10 is driven 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 snap-action rollers. When rolling up and unrolling the roller blinds 1 and 1 'so the intermediate roller 7 is also corresponding the movement of the roller blind rod 2 and unrolled.

An der Decke 61 des Kühlmöbels sind Wickelwalzenlager 12 für die Wickelwalze 10 befestigt, an denen in Verlängerung der Wickelwalzenlager 12 eine Schienenaufhängung 73 für die Schiene 72 angeordnet ist. Die Schiene 72 ist somit unterhalb der Wickelwalze 10 zwischen den Rollobahnen 1, 1' angeordnet. Die Schiene 72 weist eine Gleitnut 74 auf, in welcher das freie Ende der Rollobahn des Zwischenrollos 7 verschiebbar eingehängt ist. Die Rollobahnen 1 und 1' sind an ihren Enden jeweils miteinander verbunden, so dass in der abgesenkten Position sowohl die Wickelwalze 10 als auch der Rollostab 2 von der resultierenden endlosen Rollobahn umschlungen sind. Die zu einer durchgehenden Bahn zusammengefügten Rollobahnen 1 und 1' sind durch ein Klemmstück 22 am Rollostab 2 befestigt.On the ceiling 61 of the cooling cabinet winding roller bearings 12 are fixed to the winding roller 10, where in extension of the winding roller bearing 12, a rail mounting 73 is arranged for the rail 72. The rail 72 is thus arranged below the winding roller 10 between the roller blinds 1, 1 '. The rail 72 has a sliding groove 74, in which the free end of the roller blind of the intermediate roller blind 7 is 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 and the roller blind rod 2 are looped by the resulting endless blind sheet. The roller blinds 1 and 1 'joined together to form a continuous web are fastened to the roller blind rod 2 by a clamping piece 22.

Um Kälteverlust zu vermeiden, ist es aber nicht nur notwendig, an den Seiten der Spalte 13 zwischen den einzelnen Rollos Abhilfe zu schaffen. Es hat sich gezeigt, dass innerhalb des Kühlraumes ein Überdruck entsteht durch den Temperaturunterschied im oberen und unteren Bereich des Kühlraumes. Insofern ist es besonders wichtig, dass das Rollo unten, wo es auf dem Rahmen 5 des Kühlmöbels aufsitzt, gut abdichtet. Da die Kaltluft stets nach unten sinkt, entsteht dort ein Überdruck. Das Klemmstück 22 weist deshalb eine Nut 24 auf, die der Befestigung einer Dichtlippe 4 dient (siehe Figur 4), die sich gegen den Rahmen 5 der Zugriffsöffnung legt. Zur Verbesserung der Anlage kann in der Dichtlippe zusätzlich noch ein Magnetstreifen vorgesehen sein. Die Enden der Rollobahnen 1 und 1' können aber auch jeweils für sich am Rollostab 2 befestigt sein.In order to avoid loss of cold, it is not only necessary to remedy the sides of the column 13 between the individual blinds. It has been found that an overpressure arises within the cooling space due to the temperature difference in the upper and lower regions of the cooling space. In this respect, it is particularly important that the blind down well where it rests on the frame 5 of the refrigerator, seals well. Since the cold air always sinks down, there is an overpressure. The clamping piece 22 therefore has a groove 24, which serves to attach a sealing lip 4 (see FIG. 4 ), which lays against the frame 5 of the access opening. To improve the system, a magnetic strip may additionally be provided in the sealing lip. But the ends of the roller blinds 1 and 1 'can also be attached to the roller blind 2 in each case.

Es hat sich gezeigt, dass in der Praxis in vielen Fällen die Dichtlippe 4 auch zu schwach ist und keine genügende Abdichtung bewirkt bei sehr hohem Temperaturunterschied. Am Rollostab 2 kann deshalb vorteilhafter Weise ein Klemmstück 22' vorgesehen sein, an welchem eine Dichtlippe 4' (siehe Figur 12) angebracht ist. Hinter dieser Dichtlippe 4' ist eine Rahmendichtung 41 angeordnet, die beim Absenken des Rollos am Ende der Absenkbewegung auf einen Dichtungsanschlag 50 auftrifft und dadurch die Abdichtung auch unten in der abgesenkten Stellung gegeben ist. Gleichzeitig wird die Dichtlippe 4' infolge des Innendrucks gegen einen Dichtungsanschlag 50 gedrückt, so dass keine Kaltluft am unteren Rand des Rollos 1; 1' entweichen kann. Ein Ausweichen des Rollos 1; 1' gegenüber dem Innendruck ist nicht möglich, da die starre Dichtlippe 4' an dem Dichtungsanschlag 50 anliegt und so das Ende des Rollos 1; 1' nicht weiter nach außen gedrückt werden kann.It has been shown that in practice, in many cases, the sealing lip 4 is also too weak and does not cause sufficient sealing at a very high temperature difference. The roller blind 2 can therefore advantageously a clamping piece 22 'may be provided, on which a sealing lip 4' (see FIG. 12 ) is attached. Behind this sealing lip 4 'is a frame seal 41st arranged, which impinges on lowering of the roller blind at the end of the lowering movement on a sealing stopper 50 and thereby the seal is also given down in the lowered position. At the same time, the sealing lip 4 'is pressed due to the internal pressure against a sealing stop 50, so that no cold air at the bottom of the roller blind 1; 1 'can escape. Dodge the blinds 1; 1 'relative to the internal pressure is not possible because the rigid sealing lip 4' rests against the sealing stop 50 and so the end of the roller blind 1; 1 'can not be pushed further out.

Der Durchmesser des als Halbschale 77 ausgebildeten Rollostabes 2 ist bestimmend für den Abstand A der beiden Rollobahnen 1 und 1'. An den Befestigungspunkten 11 und 11' ist die aus den Rollobahnen 1, 1' gebildete endlose Rollobahn an der Wickelwalze 10 befestigt. Durch diese Art der Befestigung ist der Abstand A der beiden Rollobahnen 1 und 1' gegeben. Da hier die Befestigungspunkte 11 und 11' sich um 180 Grad versetzt zueinander am Umfang der Wickelwalze 10 befinden, ist praktisch der Durchmesser der Wickelwalze 10 bestimmend für den Abstand A. Ebenso umschlingen die zu einer endlosen Bahn zusammengefügten Rollobahnen 1 und 1' den Rollostab 2, welcher als Halbschale 77 geformt ist und an seinem Innenumfang eine Ausnehmung 21 aufweist. Diese Halbschale 77 ist so groß, dass der Rollostab 2 die Wickelwalze 71 des Zwischenrollos 7 und in aufgewickelter Stellung (siehe Figur 2) auch das aufgewickelte Zwischenrollo 7 aufnehmen kann. Die seitlich der Wickelwalze 71 angeordneten Lager 76 für die Wickelwalze 71 des Zwischenrollos 7 sind durch die Halbschale 77 miteinander verbunden, die mittels einer Lagerscheibe 78 in der Ausnehmung 21 axial verschiebbar im Rollostab 2 gelagert ist.The diameter of the roller shutter formed as a half-shell 77 2 is determining for the distance A of the two roller blinds 1 and 1 '. At the attachment points 11 and 11 'from the roller blinds 1, 1' formed endless blind sheet is attached to the winding roller 10. By this type of attachment, the distance A of the two roller blinds 1 and 1 'is given. Since here the attachment points 11 and 11 'are offset by 180 degrees to each other on the circumference of the winding roller 10, practically the diameter of the winding roller 10 is decisive for the distance A. Similarly, the blind sheets 1 and 1' joined together to form an endless web wrap around the roller blind rod 2 which is shaped as a half-shell 77 and has a recess 21 on its inner circumference. This half-shell 77 is so large that the roller blind 2, the winding roller 71 of the intermediate roller blind 7 and in the wound position (see FIG. 2 ) can also accommodate the wound intermediate roller blind 7. The side of the winding roller 71 arranged bearing 76 for the winding roller 71 of the Zwischenrollos 7 are interconnected by the half-shell 77, which is mounted by means of a bearing disc 78 in the recess 21 axially displaceable in the roller blind 2.

Das Zwischenrollo 7 kann so im Rollostab 2 in eine gewünschte Position axial verschoben werden. Die Rolloeinrichtung wird samt Zwischenrollo 7 komplett vormontiert zum Einbau in das Kühlmöbel angeliefert. Dabei ist die Halbschale 77 mit dem Zwischenrollo 7 in der Gleitnut 74 des Rollostabes so angeordnet, dass Zwischenrollo 7 und Rollobahnen 1, 1' deckungsgleich sind. Um die Spalten 13 zwischen benachbarten Rollobahnen 1 bzw. 1' zu überdecken, wird das Zwischenrollo 7 dann in eine Position mittig zu den Spalten 13 verschoben. Der Rollostab 2 erstreckt sich jeweils über die Breite der Rollobahn 1 bzw. 1', wie aus Figur 3 ersichtlich ist. Durch axiales Verschieben der Zwischenrollos 7 werden die Rollostäbe 2 der nebeneinander angeordneten Rollobahnen 1 bzw.1' miteinander zu einem sich über die gesamte Länge des Kühlmöbels erstreckenden Rollostab 2 verbunden. Gleichzeitig können die freien Enden der Zwischenrollos 7 in der Gleitnut 74 der Schiene 72 dieser Verschiebung folgen.The intermediate roller blind 7 can be moved axially in the roller blind rod 2 in a desired position. The roller blind device, including the intermediate roller blind 7, is delivered completely pre-assembled for installation in the refrigerated cabinet. In this case, the half-shell 77 is arranged with the intermediate roller 7 in the sliding groove 74 of the roller blind bar so that intermediate roller blind 7 and roller blinds 1, 1 'congruent are. In order to cover the gaps 13 between adjacent roller blinds 1 and 1 ', the intermediate roller blind 7 is then moved into a position centrally of the gaps 13. The roller blind rod 2 extends over the width of the roller blind 1 or 1 ', as seen from FIG. 3 is apparent. By axial displacement of the intermediate roller blinds 7, the roller blind rods 2 of the roller blinds 1 and 1 'arranged side by side are connected together to form a roller blind rod 2 extending over the entire length of the cooling unit. At the same time, the free ends of the intermediate blinds 7 in the sliding groove 74 of the rail 72 can follow this shift.

Zweckmäßig sind die Rollobahnen des Zwischenrollos 7 genauso breit wie die Rollobahnen 1; 1'. Das Zwischenrollo 7 ist jeweils mittig zu den Spalten 13 verschiebbar. Auf diese Weise werden nicht nur die Spalten 13 durch die Zwischenrollos 7 sowie die Spalten 75 zwischen den Zwischenrollos 7 von den Rollobahnen 1 bzw. 1' abgedeckt, sondern es entstehen zwei Luftkammern, durch welche die Rolloeinrichtung eine außerordentlich gute Isolationswirkung erhält.Appropriately, the roller blinds of the Zwischenrollos 7 are as wide as the roller blinds 1; 1'. The intermediate roller blind 7 is in each case displaceable centrally of the gaps 13. In this way, not only the columns 13 are covered by the intermediate roller blinds 7 and the gaps 75 between the intermediate roller blinds 7 of the roller blinds 1 and 1 ', but there are two air chambers through which the blind device receives an extremely good insulation effect.

An den an die Kühlmöbelwand 6 angrenzenden Enden der Rolloeinrichtung sind Zwischenrollos 7' vorgesehen, die nur die halbe Breite der Rollobahnen 1 bzw. 1' aufweisen. Um an den Kühlmöbelwänden 6 den entsprechenden dichten Anschluss zu gewährleisten, kann auf diese Weise das Zwischenrollo 7' bis an die Wand 6 herangeschoben werden. Um einen glatten Lauf an der Wand 6 zu gewährleisten, ist das Lager der Wickelwalze 71 des Zwischenrollos 7' als Planscheibe 76 ausgebildet, die an der Wand 6 des Kühlmöbels entlang gleiten kann.At the adjoining the Kühlmöbelwand 6 ends of the blind device intermediate blinds 7 'are provided, which have only half the width of the roller blinds 1 and 1'. In order to ensure the corresponding tight connection to the Kühlmöbelwänden 6, the intermediate roller blind 7 'can be pushed up to the wall 6 in this way. In order to ensure a smooth running on the wall 6, the bearing of the winding roller 71 of the intermediate roller blind 7 'is formed as a face plate 76 which can slide along the wall 6 of the cooling cabinet along.

Natürlich entstehen auch zwischen den benachbarten Zwischenrollos 7 bzw. 7' Spalten 75 durch die Lagerung der Wickelwalze 71. Durch die versetzte und mittige Anordnung der Rollobahnen 1 und 1' sowie der Zwischenrollos 7 werden die Spalten 13 und 75 jedoch vollkommen abgedeckt und somit zwei nahezu geschlossene Lufträume gebildet, die eine Luftbewegung verhindern und dadurch eine sehr gute Isolation gewährleisten. Ein Luftaustausch durch diese Spalten 13 und 75 ist nahezu ausgeschlossen.Of course, arise between the adjacent Zwischenrollos 7 and 7 'columns 75 by the storage of the winding roller 71. Due to the offset and central arrangement of the roller blinds 1 and 1' and the Zwischenrollos 7, the columns 13 and 75 are completely covered and thus almost two closed air spaces are formed, which prevent an air movement and thereby ensure a very good insulation. An air exchange through these columns 13 and 75 is almost impossible.

Figur 5 zeigt eine Seitenansicht einer weiteren erfindungsgemäßen Rolloeinrichtung. Diese weist im Gegensatz zu den bisher gezeigten Ausführungsbeispielen lediglich eine oder mehrere axial nebeneinander angeordnete Rollobahnen 1 auf. Auf parallel angeordnete Rollobahnen 1' wurde verzichtet, wobei jedoch die Spalten 13 zwischen den Rollobahnen 1 ebenfalls durch ein oder mehrere Zwischenrollos 7 überlappt werden (wobei dies nicht zwangsläufig bedeuten muss, dass sich die Rollobahnen 1 und die Zwischenrollos 7 berühren müssen). Auch hier entsteht eine Luftkammer, welche die Isolierungswirkung der Rolloeinrichtung verstärkt.
Eine perspektivische Ansicht einer entsprechenden Rolloeinrichtung ist in Figur 6 dargestellt. Hieraus wird ersichtlich, dass die Zwischenrollos 7 in abgewickelter Stellung auf der den Rollobahnen 1 abgewandten Seite der Wickelwalzen 71 angeordnet sind, so dass sich das genannte Luftpolster ausbilden kann. Die Lagerung der Schienen 72, die hier bewusst nicht gezeigt ist, kann auf ähnliche oder auch dieselbe Weise erfolgen, wie es im Zusammenhang mit den vorherigen Figuren beschrieben wurde. FIG. 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 axially adjacent roller blinds 1. On parallel roller blinds 1 'has been omitted, but the columns 13 between the roller blinds 1 are also overlapped by one or more intermediate blinds 7 (which does not necessarily mean that the blinds 1 and the intermediate blinds 7 must 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. It can be seen that the Zwischenrollos 7 are arranged in the developed position on the side facing away from the roller blinds 1 side of the winding rollers 71, so that said air cushion can form. The mounting of the rails 72, which is not shown here deliberately, can be done in a similar or the same manner as described in connection with the previous figures.

Des Weiteren ist Figur 7 zu entnehmen, dass die Zwischenrollos 7 vorteilhafterweise dieselbe Breite aufweisen können wie die Rollobahnen 1. Hierdurch werden die vorhandenen Spalten 13 und 75 minimiert, und es erfolgt zudem bei entsprechend gegenseitiger mittiger Ausrichtung eine maximale Überlappungsfläche, wobei sich auch hier wiederum die genannten Luftpolster ausbilden können.Furthermore is FIG. 7 It can be seen that the Zwischenrollos 7 can advantageously have the same width as the roller blinds 1. As a result, the existing columns 13 and 75 are minimized, and it also takes place in accordance with mutual central alignment a maximum overlap area, which again can form the said air cushion ,

In Figur 8 ist ein Ausschnitt einer erfindungsgemäßen Rolloeinrichtung gezeigt, bei der die Zwischenrollos 7 in abgewickelter Stellung auf der den Rollobahnen 1 zugewandten Seite der Wickelwalzen 71 angeordnet sind. Zwar kann sich hier kein Luftpolster ausbilden. Dennoch wird eine hervorragende Isolationswirkung erzielt, da der Abstand zwischen den Zwischenrollos 7 und den Rollobahnen 1 minimiert und hierdurch ein möglicher Luftaustausch durch die Rolloeinrichtung weitgehend verhindert wird. Dies kann beispielsweise verstärkt dadurch geschehen, dass die Rollobahnen 1 und 7 Bereiche aufweisen, die mit Haftmitteln ausgestattet sind und dadurch miteinander verbunden sind.In FIG. 8 a section of a roller blind device according to the invention is shown in which the intermediate roller blinds 7 are arranged in the developed position on the roller blinds 1 side facing the winding rollers 71. Although no air cushion can form here. Nevertheless, an excellent insulation effect is achieved because the distance between the intermediate blinds 7 and the roller blinds 1 minimized and thereby a possible air exchange is largely prevented by the roller blind device. This can be done, for example, reinforced by the fact that the roller blinds 1 and 7 have areas that are equipped with adhesives and are thus interconnected.

Um diese Abstandsspalte in der Überlappungszone zu beseitigen, ist auch schon vorgeschlagen worden, die Materialbahnen der Rollos in ihren Randbereichen jeweils mit Haftelementen zu versehen, die eine lösbare Verbindung der Randbereiche des Zwischenrollos mit den Randbereichen der Rollobahnen bilden können. Diese Beschichtung mit einem permanent magnetischen Material hat jedoch den Nachteil, dass diese Randbereiche der Rollobahnen damit eine größere Stärke aufweisen als die Flächenbereiche, so dass sich beim Wickeln in diesen Randbereichen Wulste ergeben. Dies gibt Schwierigkeiten für eine gerade und gleichmäßige Aufwicklung, die jedoch für die Funktion der Rolloeinrichtung äußerst wichtig ist. Dasselbe tritt ein, wenn dort statt der Beschichtung ein magnetisierbares Metallband angeordnet ist. Gemäß der Erfindung wird dieses Problem damit gelöst, dass in diesen Bereichen magnetisierbare Metallfäden in den Rollostoff eingearbeitet werden, die nicht auftragen, da sie zur Substanz des Stoffes gehören und beim Weben der Rollobahn eingebracht werden.In order to eliminate this gap in the overlap zone, it has also been proposed to provide the webs of the blinds in their peripheral areas each with adhesive elements that can form a detachable connection of the edge regions of the intermediate roller blind with the edge regions of the roller blinds. However, this coating with a permanently magnetic material has the disadvantage that these edge regions of the roller blind webs thus have a greater thickness than the surface regions, so that bulges result during winding in these edge regions. This poses difficulties for a straight and uniform winding, which is extremely important for the function of the roller blind device. The same occurs when, instead of the coating, a magnetizable metal strip is arranged there. According to the invention this problem is solved in that in these areas magnetizable metal threads are incorporated into the blind fabric, which do not apply, since they belong to the substance of the substance and are introduced during weaving of the blind.

Eine alternative Gestaltung von Rollobahn 1 und Zwischenrollo 7 zeigen die Figuren 9 und 10. Hier sind die genannten Elemente als Faltstore ausgebildet, so dass auf eine Wickeleinrichtung verzichtet werden kann. Die beiden Rollotypen liegen in (teilweise) geschlossener Stellung möglichst dicht aneinander an, wie dies in der Seitenansicht in Figur 9 dargestellt ist. Sie können gemeinsam ziehharmonikaartig zwischen der geöffneten und der geschlossenen Stellung bewegt werden. Die Faltung des Zwischenrollos 7 ist dabei derart dimensioniert, dass sich das Zwischenrollo 7 in die Faltung der jeweils rechts und links positionierten Rollobahnen 1 einlegen lässt. Zur Fixierung im oberen und unteren Bereich weisen die Rollobahnen 1 und das oder die Zwischenrollo(s) 7 lediglich schematisch dargestellte Befestigungen 3 auf, wobei diese im unteren Bereich beispielsweise als Rollostab 2 ausgebildet sein können. Auch kann eine entsprechende Dichtlippe 4 vorgesehen sein, um die untere Abdichtung zu gewährleisten. Schließlich weist die Rolloeinrichtung entsprechende Führungsseile 14 mit entsprechenden Endstücken 16 auf, mit deren Hilfe sie in korrespondierende Einschnitte 15, beispielsweise des Rahmens 5 eines Kühlmöbels, eingehängt werden können.An alternative design of roller blind 1 and intermediate blind 7 show the Figures 9 and 10 , Here, the said elements are designed as folding shutters, so that it is possible to dispense with a 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 FIG. 9 is shown. They can be moved accordion-like between the open and the closed position. The folding of the intermediate roller blind 7 is dimensioned such that the intermediate roller blind 7 can be inserted into the folding of the roller blind webs 1 respectively positioned on the right and left. For fixing in the upper and lower areas, the roller blinds 1 and the or the intermediate roller blind (s) 7 only schematically shown fasteners 3, which may be formed in the lower region, for example, as a roller blind rod 2. Also, a corresponding sealing lip 4 may be provided to ensure the lower seal. Finally, the blind device has corresponding guide cables 14 with corresponding end pieces 16, by means of which they can be suspended in corresponding cuts 15, for example of the frame 5 of a refrigerated cabinet.

Figur 11 zeigt eine weitere Alternative der Ausbildung des Rollostabs 2. Dieser ist in diesem Fall als kassettenartige Profilkonstruktion ausgebildet, in deren Innenraum die Aufwickelwalze 71 des Zwischenrollos 7 angeordnet ist. Der Rollostab 2 kann dabei beispielsweise derart konstruiert sein, dass er sich durch sein Eigengewicht und die Lage seines Schwerpunktes in der geschlossenen Stellung der Rolloeinrichtung automatisch entsprechend Figur 11 ausrichtet, um eine vertikale Ausrichtung der Dichtlippe 4 sicherzustellen. Zudem kann bei dieser Ausführungsform durch die Abstimmung der Länge der Rollobahnen 1 sowie des Zwischenrollos 7 erreicht werden, dass die beiden Bahnen in geschlossener Stellung praktisch abstandsfrei aneinander anliegen. Wird die Rolloeinrichtung schließlich in die geöffnete Stellung überführt, so werden sowohl die Rollobahnen 1 als auch das Zwischenrollo 7 entsprechend aufgewickelt. Da hierdurch sowohl der Wickeldurchmesser der obigen Wickelwalze 10 als auch der der unteren Wickelwalze 71 zunimmt, erhöht sich der Abstand zwischen Rollobahn 1 und Zwischenrollo 7, so dass keine störende Reibung entsteht. FIG. 11 shows a further alternative of the formation 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 can be constructed, for example, such that it automatically by its own weight and the position of its center of gravity in the closed position of the blind device accordingly FIG. 11 aligns to ensure vertical alignment of the sealing lip 4. In addition, can be achieved in this embodiment by the vote of the length of the roller blinds 1 and the intermediate roller blind 7 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 and the intermediate roller 7 are wound up accordingly. Since this increases both the winding diameter of the above winding roller 10 and the lower winding roller 71, the distance between roller blind 1 and intermediate roller 7 increases, so that no disturbing friction arises.

Je höher der Temperaturunterschied im Kühlmöbel zwischen oben und unten ist, je mehr baut sich durch die nach unten strömende Kaltluft ein Überdruck im unteren Teil des Kühlraumes auf. Es kann sein, das die oben beschriebene Dichtlippe 4 dann für eine gute Abdichtung nicht ausreicht. Bei der in Figur 12 gezeigten Ausführung ist deshalb eine starre Dichtlippe 4' vorgesehen, die in der Schließstellung sich gegen einen Dichtungsanschlag 50 abstützt und somit dem Druck nicht ausweichen kann. Durch den abgesenkten Rollostab 2 wird eine an dem Klemmstück 22' befestigte Rahmendichtung 41 von oben auf den Dichtungsanschlag 50 gedrückt und so zusammen mit der starren Dichtlippe 41 eine auch größerem Druck widerstehende Abdichtung erreicht.The higher the difference in temperature between the top and the bottom of the refrigerator, the more the overflow of cold air builds up overpressure in the lower part of the cold room. It may be that the above-described sealing lip 4 is then insufficient for a good seal. At the in FIG. 12 shown embodiment, therefore, a rigid sealing lip 4 'is provided, which is supported in the closed position against a sealing stop 50 and thus can not escape the pressure. By the lowered Rollostab 2 is pressed onto the clamping piece 22 'fixed frame seal 41 from above on the sealing stopper 50 and thus achieved together with the rigid sealing lip 41 a greater pressure-resistant seal.

Der Antrieb einer solchen Rolloeinrichtung erfolgt üblicherweise so, dass eine Möbelreihe bis zu einer Länge von 12,50 m von einem Motor angetrieben wird. Im ersten Modul ist in der Wickelwelle 10 ein Rohrmotor angeordnet, der dann über Adapterkupplungen weitere Module bis zu einer Gesamtlänge von 12,50 m antreibt. Die Gesamtkonstruktion ist jedoch durch die vielseitigen Anforderungen (mehrlagiger Stoff, Abschlussprofile an der Unterkante des Rollos, u.a.) so schwer geworden, dass mit einem Rohrmotor in den bekannten Dimensionen nur eine wesentlich kürzere Strecke angetrieben werden kann und entsprechend kürzere Längen mit mehr Motoren angetrieben werden müssen. Da die einzelnen Motoren aber wegen nicht exakt gleicher Geschwindigkeit nicht synchron laufen, ist nur mit einer aufwendigen Synchronisationseinrichtung dieser Mangel zu beheben. Man kann selbstverständlich eine größer dimensionierte Rollowickelwelle vorsehen, die genug Platz für einen stärkeren Motor bietet. Der begrenzte Bauraum der Möbel verhindert jedoch eine entsprechend Realisierung. Erfindungsgemäß wird deshalb der Antrieb aus der Welle heraus nach außen verlagert. Das hat den Vorteil, dass der Wickelwellendurchmesser nicht mehr die Stärke des Rohrmotors bestimmt. Fig. 13 zeigt schematisch eine solche Lösung. Auf der Decke 61 des Kühlmöbels wird über die gesamte Länge des Kühlmöbels eine durchgehende Antriebswelle 84 installiert, von der aus mittels eines starken Antriebsmotors 85 und Zahnriemen 83 die einzelnen Rollomodule 8 angetrieben werden. Wird der Übertrieb zwischen zwei Rollomodule 8 gelegt, können auch zwei Module 8 nach links und nach rechts angetrieben werden, ohne jede Verstärkung der Wickelwelle 10. Bei dieser Lösung können Längen von bis zu 20 m angetrieben werden ohne Vergrößerung oder Verstärkung der Antriebsteile, so dass kein zusätzlicher Raumbedarf entsteht.The drive of such a blind device is usually carried out so that a row of furniture is driven up to a length of 12.50 m by a motor. In the first module, a tubular motor is arranged in the winding shaft 10, which then drives further modules via adapter couplings up to a total length of 12.50 m. Due to the versatile requirements (multi-layer fabric, finishing profiles on the lower edge of the roller blind, etc.), the overall construction has become so heavy that only a considerably shorter distance can be driven with a tubular motor in the known dimensions and correspondingly shorter lengths can be driven by more motors have to. However, since the individual motors do not run synchronously because of not exactly the same speed, this deficiency can only be remedied with a complex synchronization device. Of course you can provide a larger sized roller blind shaft, which provides enough space for a more powerful engine. However, the limited space of the furniture prevents a corresponding implementation. Therefore, according to the invention, the drive is displaced out of the shaft to the outside. This has the advantage that the winding shaft diameter no longer determines the strength of the tubular motor. Fig. 13 schematically shows such a solution. On the ceiling 61 of the cabinet a continuous drive shaft 84 is installed over the entire length of the cabinet, from which the individual rolling modules 8 are driven by means of a strong drive motor 85 and toothed belt 83. If the overshoot is placed between two rolling modules 8, two modules 8 can be driven to the left and to the right, without any reinforcement of the winding shaft 10. In this solution, lengths of up to 20 m can be driven without increasing or increasing the drive parts, so that no additional space required.

Zur Stabilisierung und zur Vermeidung von Durchbiegungen wegen zu großen Längen der Wickelwelle 10 ist die Wickelwelle des Kühlmöbels in Module von etwa 2.500 mm oder 3.750 mm unterteilt. Diese Module 8 sind auch entsprechend den Stoffbreiten für das Rollo aus zwei oder drei Segmenten 81 mit einer Länge von jeweils 1.250 mm zusammengesetzt. Durch diese Standardisierung der Bauteile ergeben sich auch in der Fertigung große Vereinfachungen und Einsparungen. Außerdem hat sich gezeigt, dass derartige Wellenlängen abgestimmt auf die Stoffbreiten problemlos eingesetzt werden können.To stabilize and avoid deflections due to excessive lengths of the winding shaft 10, the winding shaft of the cabinet is divided into modules of about 2,500 mm or 3,750 mm. These modules 8 are also composed according to the fabric widths for the shade of two or three segments 81 with a length of 1,250 mm each. This standardization of components also results in great simplifications and savings in production. In addition, it has been shown that such wavelengths can be used easily matched to the fabric widths.

Zur Vermeidung zu starker Wickelwellen ist es deshalb zweckmäßig, eine separate Antriebswelle außerhalb des Kühlmöbels vorzusehen, die sich über die gesamte Länge des Kühlmöbels parallel zur Wickelwalze erstreckt und von einem einzigen Motor 85 angetrieben wird. Vorzugsweise erfolgt der Übertrieb zu jedem Modul 8 der Wickelwelle 10 mittels eines Zahnriemens 83 oder eines ähnlichen Getriebeelementes, beispielsweise einer Kette. Dadurch, dass der Übertrieb vorzugsweise zwischen zwei Rollomodulen 8 erfolgt, lässt sich der Antrieb noch weiter vereinfachen. Es wird nur noch ein Übertrieb für 2 Module benötigt, ohne die Wickelwelle 10 stärker zu belasten. Zu starke Wickelwellen 10 können so vermieden werden.To avoid too strong winding shafts, it is therefore expedient to provide a separate drive shaft outside of the cabinet, which extends over the entire length of the cabinet parallel to the winding roller and is driven by a single motor 85. Preferably, the overshoot to each module 8 of the winding shaft 10 by means of a toothed belt 83 or a similar transmission element, such as a chain. The fact that the overrun preferably takes place between two rolling modules 8, the drive can be further simplified. It is only an overdrive needed for 2 modules without burdening the winding shaft 10 more. Too strong winding shafts 10 can be avoided.

Es kann aber alternativ auch jeder Rollomodul 8 durch einen eigenen Rohrmotor angetrieben werden. Dann ist es jedoch notwendig, eine Schalteinrichtung vorzusehen, die die einzelnen Rollomodule 8 zeitversetzt nacheinander startet. Auf diese Weise lässt sich eine Synchronisationseinrichtung vermeiden, und die unterschiedlichen Laufzeiten der Motoren werden ausgeglichen. Statt der Wickelwalzen 10 für die Rollobahnen können die Rollobahnen 1 bzw. 1' und das Zwischenrollo 7 bzw. 7' auch als Faltstore (Fig. 9 u. 10) ausgebildet sein, wobei sie in der geöffneten Stellung zickzackartig gefaltet sind.Alternatively, each rolling module 8 can be driven by its own tubular motor. Then, however, it is necessary to provide a switching device that starts the individual rolling modules 8 delayed in succession. In this way, a synchronization device can be avoided, and the different running times of the motors are compensated. Instead of the winding rollers 10 for the roller blinds, the roller blinds 1 and 1 'and the intermediate roller blind 7 and 7' as a folding blind ( Fig. 9 u. 10), wherein they are folded zigzag in the open position.

Im Übrigen ist die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt. Vielmehr sind sämtliche Kombinationen der beschriebenen Einzelmerkmale, wie sie in den Ansprüchen, der Beschreibung sowie den Figuren gezeigt oder beschrieben sind und soweit eine entsprechende Kombination technisch möglich bzw. sinnvoll erscheint, Gegenstand der Erfindung.Incidentally, the invention is not limited to the illustrated embodiments. Rather, all combinations of the described individual features, as shown or described in the claims, the description and the figures and as far as a corresponding combination is technically possible or reasonable sense, the subject of the invention.

Beispielsweise können bei der Fertigung der Rollobahnen 1, 1' oder auch der Zwischenrollos 7 Stoffbahnen zum Einsatz kommen, die seitlich "schusseln". Bei diesem Effekt, der eigentlich bei der Rollostoffherstellung unerwünscht ist, rollen sich die seitlichen Kanten in eine Richtung ein. Wird ein derartiger Stoff derart eingesetzt, dass gegenüberliegende Bereiche von Rollobahn 1 bzw. 1' und Zwischenrollo 7 in die gegenseitig zugewandte Richtung einrollen, so berühren sich die jeweiligen Stoffbahnen in diesem Bereich, wohingegen der übrige Bereich der Bahnen einen Abstand zueinander aufweist. Im Endbereich entsteht so eine vergrößerte Abdichtung, während sich zwischen den restlichen Abschnitten isolierende Luftpolster ausbilden.For example, in the production of the roller blinds 1, 1 'or the intermediate roller blinds 7 panels can be used, the side "shuffle". In this effect, which is actually undesirable in the Rollostoffherstellung, the side edges curl in one direction. If such a material is used in such a way that opposite areas of roller blind 1 or 1 'and intermediate roller 7 roll in the mutually facing direction, then the respective panels touch each other in this area, whereas the remaining area of the panels is at a distance from one another. In the end, this creates an enlarged seal, while forming between the remaining sections insulating air cushion.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Rollobahnblind web
1'1'
zusätzliche Rollobahnadditional shade
1010
Wickelwalze RollobahnWinding roller blind
11, 11'11, 11 '
Befestigungspunktattachment point
1212
WickelwalzenlagerWinding roller bearings
1313
Spaltgap
1414
Führungsseilguide rope
1515
Einschnittincision
1616
Endstücktail
22
RollostabRollo staff
2121
Ausnehmungrecess
2222
Klemmstückclamp
2424
Nutgroove
33
Befestigung f. FaltrolloAttachment f. Roman blind
44
Dichtlippesealing lip
4'4 '
starre Dichtlipperigid sealing lip
4141
Rahmendichtungweatherstrip
55
Rahmen der ZugriffsöffnungFrame of access opening
5050
Dichtungsanschlagseal stop
5151
Blendecover
66
SeitenwandSide wall
6161
Decke - KühlmöbelCeiling - refrigerated cabinets
6262
Boden - KühlmöbelFloor - refrigerated cabinets
7, 7'7, 7 '
Zwischenrollobetween Rollo
71, 71'71, 71 '
Wickelwalze ZwischenrolloWinding roller intermediate roller blind
7272
Schienerail
7373
Schienenaufhängungrail suspension
7474
Gleitnutslide groove
7575
Spaltgap
7676
PlanscheibeFaceplate
7777
Halbschalehalf shell
7878
Gleitschieneslide
88th
Modul Wickelwalze RollobahnModule winding roller blind
8181
RollosegmentRollo segment
8282
ÜbertriebExaggerated
8383
Zahnriementoothed belt
8484
Antriebswelledrive shaft
8585
Antriebsmotordrive motor

Claims (15)

  1. Roller blind device having roller blind webs (1) disposed axially adjacent to each other that can be jointly rolled up and down on a winding roller (10) and between which an intermediate roller blind (7) that can be rolled up and down with the roller blind webs (1) is disposed, said intermediate roller blind (7) in its lowered position covering a gap (13) arising between the roller blind webs (1), characterized in that a roller blind bar (2) is disposed at the free end of the roller blind webs (1) and serves for supporting winding rollers (71) for the intermediate roller blinds (7).
  2. The roller blind device according to claim 1, characterized in that the winding roller (71) of the intermediate roller blind (7) is rotatably and axially displaceably supported on the roller blind bar (2).
  3. The roller blind device according to any one of the claims 1 or 2, characterized in that a rail (72) is provided below the winding roller (10) for the roller blind webs (1) for attaching the roller blind web of the intermediate roller blind (7).
  4. The roller blind device according to one or more of the claims 1 through 3, characterized in that the rail (72) comprises a sliding groove (74) in which the free end of the roller blind web of the intermediate roller blind (7) is displaceably suspended.
  5. The roller blind device according to one or more of the preceding claims, characterized in that the winding roller (71) of the intermediate roller blind (7) comprises a spring drive.
  6. The roller blind device according to one or more of the preceding claims, characterized in that the roller blind device comprises at least one further roller blind web (1') that can be rolled up and down together with the roller blind web (1) by means of the winding roller (10), wherein the roller blind webs (1; 1') run parallel to each other in the closed position and wherein the two roller blind webs (1; 1') are preferably attached to the roller blind bar (2).
  7. The roller blind device according to claim 6, characterized in that the roller blind webs (1; 1') are disposed at a distance (A) from each other in the closed position and are wound up one over the other in the opened position.
  8. The roller blind device according to one or more of the claims 6 through 7, characterized in that the intermediate roller blind (7) runs between the two roller blind webs (1; 1') in the unwound position.
  9. The roller blind device according to one or more of the claims 6 through 8, characterized in that the roller blind webs (1; 1') are attached at the circumference of the winding roller (10) at a distance so that a desired distance (A) between the roller blind webs (1; 1') arises in the unwound position of the roller blind webs (1; 1').
  10. The roller blind device according to one or more of the claims 6 through 9, characterized in that the roller blind webs (1; 1') are connected to each other at the ends thereof and wind around the winding roller (10) and the roller bar (2) in the unwound position.
  11. The roller blind device according to one or more of the preceding claims, characterized in that the roller bar (2) is implemented as a half shell (77) for receiving the winding roller (71) of the intermediate roller blind (7).
  12. The roller blind device according to one or more of the preceding claims, characterized in that the roller blind webs (1; 1') are attached at the outer circumference of the roller bar (2) by means of a clamping piece (22).
  13. The roller blind device according to one or more of the preceding claims, characterized in that a sealing lip (4; 4') is disposed at the outer circumference of the roller bar (2), wherein preferably in the lowered position of the roller blind webs (1; 1') the sealing lip (4; 4') protrudes downward approximately aligned to the roller blind webs (1; 1') and contacts a stop (5) and preferably in the raised position of the roller blind webs (1; 1') adopts a horizontal orientation approximately perpendicular to the roller blind webs (1; 1'), and wherein the sealing lip (4) is preferably equipped with a magnetic strip for better contact with the stop (5).
  14. The roller blind device according to one or more of the preceding claims, characterized in that a clamping piece (22) serves for retaining the sealing lip (4).
  15. The roller blind device according to one or more of the preceding claims, characterized in that the clamping piece (22) comprises a groove (24) for attaching the sealing lip (4).
EP10779829.0A 2009-11-26 2010-11-25 Roller blind device Not-in-force EP2504515B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009055724A DE102009055724A1 (en) 2009-11-26 2009-11-26 Roller blind unit has winding roller for winding two parallel arranged roller blinds which are rolled on winding roller in common manner
DE102010031082A DE102010031082A1 (en) 2010-07-07 2010-07-07 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
PCT/EP2010/068261 WO2011064318A2 (en) 2009-11-26 2010-11-25 Roller blind device

Publications (2)

Publication Number Publication Date
EP2504515A2 EP2504515A2 (en) 2012-10-03
EP2504515B1 true EP2504515B1 (en) 2013-10-02

Family

ID=44066985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10779829.0A Not-in-force EP2504515B1 (en) 2009-11-26 2010-11-25 Roller blind device

Country Status (2)

Country Link
EP (1) EP2504515B1 (en)
WO (1) WO2011064318A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011010967A1 (en) * 2011-02-10 2012-08-16 Albert Weiss Splitting-free roller blind device
JP6168704B2 (en) * 2014-04-18 2017-07-26 株式会社ニチベイ Pleated screen
IL238005A0 (en) * 2015-03-29 2015-11-30 Roll Profile Ltd Shutter rolling system and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021656B4 (en) 2000-05-04 2017-05-24 PAN-DUR Holding GmbH & Co. KG Rollo facility
DE20101977U1 (en) 2001-02-06 2002-06-13 Remis Gmbh refrigerated
DE10316785B4 (en) * 2003-04-11 2007-04-26 Webasto Ag net device

Also Published As

Publication number Publication date
WO2011064318A2 (en) 2011-06-03
WO2011064318A3 (en) 2011-12-29
EP2504515A2 (en) 2012-10-03

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