EP1355035B1 - Roll type closure - Google Patents

Description

For covering openings in, for example, refrigerators, windows, Sunroofs for vehicles and the like it is known the roller blind in laterally parallel guides to be covered To lead opening and thus a connection to the To reach the opening bounding wall parts. Most of the time For this purpose, a cover rail is provided, in which the roller blind rod slides and the roller blind following the roller blind leads. In the case of blinds where the roller blind off there are several rigid strips, one is altogether more satisfactory Closure given for example a window opening. However, these roller blinds are massive and therefore require a corresponding spatial and financial expense. For Sunroofs of vehicles or blinds for darkening of rooms for movie or photo screenings are this type Roller blinds not suitable.

To darken photo slides or movie projection rooms Roller blinds used made of a thin flexible material consist. The roller blinds are perpendicular in front of the window caves lowered. To avoid a light incident is a wide cover strip is placed in front of the window cavity at the edge, to which the roller blind engages. This cover strip can also be performed double-sided, so that the roller blind in a guided tour. This type of leadership is needed relatively a lot of space and conditional that the flexible roller blind substantially hanging vertically down. Also is required by the Width of the guide slot a dense leadership of the Roller blind not guaranteed. Light incidence can not be completely avoid.

For refrigerators, it is important that they are tight are, once an unwanted air exchange and thus To avoid heat loss, on the other hand, but also a Prevents access to the goods stored in the refrigerated cabinet Be prepared in times where the refrigerated cabinets are not for sale stands. In particular, if such refrigeration furniture in schools, administrations and canteens for self-service in breaks are and a food sale only in this Time takes place, the furniture in the time outside of this Closed breaks and thus secured against theft access be. With vehicles it comes on stable guidance of the Rollokanten that withstands wind pressure and similar influences.

There are side guides for blinds or curtains are known, which have a hemstitch on the roller blind on a lateral, perpendicular to the rolling edge edge, which is held laterally in the unrolled state by a rod member, which is pulled over when rolling the blind or protective curtain of hemstitch, so that the unrolled curtain is held substantially along the entire hemstitch on the rod element (DE 2 99 225 93 U1, DE 19 609 082). Although a positive and stable connection of the blinds to the wall delimiting the opening is achieved by these known devices, however, the hemstitch for guiding the blind has the disadvantage that this hemstitch edge applies during rolling up and thus grows to a substantially larger diameter compared with the rest of the blinds so that the winding not only requires considerable space, but also leads to an uneven winding and thereby distortion of the blind. In addition, the production of such hollow seams is associated with an additional workload and expensive the blind device.

A similar device as in the above two documents is known from US-PS 881,507 . Again, a hemstitch is provided by means of a seam is formed on the marginal edges of the blinds for the leadership and slides over a guide rod. Due to the folded hemstitch, the roller blind becomes twice as strong in this area as in the remaining area, which leads to beading and distortion at the edges when rolled up.

Object of the present invention is therefore to overcome these disadvantages to eliminate and create a roller blind system, the one stable and inevitable connection of the blinds to which the Closing opening wall ensures, however simple and therefore inexpensive in its production. These The object is solved by the features of claims 1 and 9.

In addition, double fabric layers and hem seams are avoided, so that the roller blind over the entire width including the edge region has a uniform thickness, whereby Irregularities when rolling up and distortions avoided become.

Be in the fabric across the width at certain intervals Hose pockets incorporated, so can different widths Roller blinds according to the grid of these hose pockets be prepared without already in the production to set a specific blind width. This will with low storage a great flexibility in the Adapted to different required roller blind widths. The side guide is in a simple way by a in the Tubular bag is given to interposing rod so that voluminous Boxes for lateral guidance of the edge of the roller blind itself unnecessary. The inevitable guidance is enough for a short Engagement of the edge of the roller blind in the lateral guide. This is particularly advantageous in vehicle construction.

Due to the transverse mobility of the management staff and a for Direction of movement of the blind elastic attachment of the hollow profile tolerances can be easily compensated and the roller blind be kept curious.

Further details of the invention will become apparent from the drawings described

Figur 1

das erfindungsgemäße Rollosystem in Frontsicht

Figur 2

das Rollosystem gemäß Figur 1 in der Draufsicht im Querschnitt

Figur 3

die Rollobahn im Ausschnitt

Figur 4

eine linksseitige Rolloführung im Schnitt

Figur 5

einen Querschnitt zu Figur 6

Figur 6

eine rechtsseitige Rolloführung im Ausschnitt

Figur 7

eine Rollobahn mit Schlauchtaschen in Kett- und Schußrichtung

Show it:

FIG. 1

the roller blind system according to the invention in front view

FIG. 2

the roller blind system according to Figure 1 in plan view in cross section

FIG. 3

the roller blind in the cutout

FIG. 4

a left-side carousel in section

FIG. 5

a cross section to Figure 6

FIG. 6

a right-hand roll guide in the neckline

FIG. 7

a roller blind with hose pockets in warp and weft direction

Figure 1 shows a front view of a refrigerator 6 with the side walls 61, the roof 62 and the base 63. To cover the formed by the side walls 61 and the roof 62 opening a roller blind device is provided which consists of a roller blind 1 with a closure strip 15, and the parallel guides 2 and the Rolloaufwindung. 7

The parallel guides are as a box-shaped hollow profile. 2 formed with a longitudinal slot 21 through which the blind sheet 1 can pass. Within the hollow section 2 is a Guide rod 3 is arranged, whose diameter is larger than the width of the longitudinal slot 21. This guide rod 3 engages in a hose pocket 11 of the blind sheet 1, which thereby is extended, so that the roller blind 1 with its peripheral edge 14 is held within the hollow section 2. The roller blind 1 with the expanded by the guide rod 3 Hose bag 11 is supported on the inside of the Hollow sections 2 and can not be pulled out through this slot 21 become. It creates in this way a forced operation. With his angled foot 31 of the Führungsgstab is the third in a recess 41 of a cap 4 at the lower end anchored the hollow section 2. As is apparent from Figure 4, is the recess 41 on the slot 21 facing side open at the top, so that the guide rod 3 with his Foot 31 can slide horizontally in this recess 41. On This way, tolerances in the width of the blind sheet 1 be compensated, so that the roller blind 1 with the widened Hose bag 11 always on both sides of the longitudinal slot 21 is supported on the hollow section 2 and stretched evenly is.

The blind sheet 1 is preferably made of a fabric, in which For example, in the warp direction tubular pockets 11th woven in. As is apparent from Figure 3, in certain Distances in the weft direction such hose pockets 11th be incorporated. These hose pockets 11 are on the edge of the Roller blind 1 arranged to receive the guide rod 3, the engages in these pockets and thus the blind sheet 1 at her Up and down movement inevitably leads. The arrangement of such hose-like pockets 11 distributed in the weft direction over the width of the blind sheet 1 has the advantage that the substance for the roller blind 1 manufactured with a uniform working width can be made of the same fabric roller blinds 1 in different widths B can be cut out. The Cutting edges 14 are then processed for solidification, which for example, by welding the synthetic material can be done so that fraying these edges prevented becomes. The edges can also be glued, for example when laminating or coating, be solidified.

FIG. 7 shows a detail in an original illustration a roller blind 10, which hose pockets 11 both in the weft direction (11S) and in the warp direction (11K). It arise between the cross of the hose pockets 11 Stoffelder 16, which consist of a single-layered fabric. These Stoffelder 16 are made with a coarser bond, so that there is some transparency in these materials, as described below. Such a fabric with Hose bags 11S and 11K can be both in width and be used in length as a roller blind, since both the Pockets 11S and the pockets 11K guide rods 3 record can. Depending on whether the bags 11S or 11K in Transverse to the web lie, they can then for Recording the roller blind or stiffening rods serve. In such an embodiment roller blinds for the most diverse uses and dimensions very flexible getting produced.

The manufacture of the blind sheet 1 is carried out in such a way that first a fabric is produced, in the so-called tubular pockets 11 in the longitudinal direction (warp direction) the blind sheet 1 are woven. As can be seen from FIG. 7, can simultaneously also in the transverse direction (weft direction) tubular pockets 11S be woven, so that a checkered structure arises. The manufacture of such pocket fabrics is basically known and therefore needs here will not be described in detail. These tissues are with the usual floats loosely produced. at irregular contours, however, is a Jaquard loom required.

As already mentioned above, it is expedient always the full Working width of the weaving machine exploited. About this width Pockets 11 are incorporated at a distance that ever according to the desired roller blind these bags 11 different Blind roller widths B laterally limit, so that from a working width different roller blind widths B cut out can be. In the area of the pockets 11, the tissue is on the two tissue levels through the use of additional Threads e.g. compressed in the chain. The fabric strips 12 between the pockets 11 are useful in an open structure woven. However, it is important to make sure that the Tissue both in the area of the pockets 11 and between the Bags 11 has the same thickness, so when rolling up no bulges arise.

After completion of the fabric, this is washed, fixed and equipped so that in the area of tightly woven pockets a closed, opaque coating on both sides is applied. It is important to ensure that the equipment or coating material, the two fabric webs in Area of the pockets 11 are not glued together. apart from the fact that it is necessary for this, the viscosity of Coating mass to vote that they are the textile Roller blind 1 does not penetrate, it is necessary to take action too meet that the roller blind 1 to be coated at least in Range of pockets 11 is tight enough. This can be different Way done. It has proven to be successful if the roller blind 1 at least in the area of the pockets 11th means flattening (at about 210 ° C). This will be the Threads compressed so that no coating material penetrates. Also has the use of textured thread material shown to be particularly advantageous. Both measures can For safety also be used in combination. It will be in In this context, the earlier patent application of the same inventor DE 19836447.4.

In the fabric strip 12 between the pockets 11 remains the Transparency, since the equipment or Coating compound not complete the coarse tissue structure closes. This can either be due to different density the fabric structure in the pocket and strip area or through the adjustment of the viscosity of the finishing or coating composition be achieved. The transparency in the intermediate strips 12 causes z. B. at Rolloeinrichtungen for refrigerated cabinets a controlled convection in the area of the roller blind 1 and thus prevents condensation and condensation.

This controlled convection can also be achieved in the following way become: After washing and fixing the tissue becomes coated on both sides, and by a lamination with films or by a knife coating. On This way, a closed airtight tissue is created. Again, care must be taken during the coating that the pockets 11 do not stick together, which by appropriate Adjustment of pressure and temperature as well as the viscosity of the Coating compound or the measures already mentioned above he follows. After coating, in the area of Strip 12 punched between the pockets 11 holes 13 to a certain controlled air permeability of the material again produce, which is necessary to a Konvektionsströmung in the area of the roller blind 1 for preventing condenser and to reach condensation.

To the efficiency in terms of energy saving and thermal insulation still increase, the fabric web can still after steamed and sealed with aluminum for washing and fixing be, with the latter method also a previously vaporized Foil can be laminated.

The fabric web produced in this way is now cut to size the desired blind sheet 1 produced. Here are the for used the desired width matching pockets 11. The cut takes place so that outside the pockets 11 a narrow Edge 14 stops. This created by cutting Edge 14 is additionally welded to allow fraying prevent. The blind sheet 1 is then at one end the Rolloaufwindung 7 attached. At the other end are in the both pockets 11 on the right and left of the fabric cutting the guide rods 3 introduced. To facilitate the introduction of Guide rods 3 in the pockets 11 can also funnel-shaped in this Guide pieces 5 are used, with the guide grommet 52 enclose the guide rod 3 and with a Support collar 51 on the inner wall of the hollow section 2. In this way, not only easy insertion of the guide rods 3 reached into the pockets 11, but at the same time also a slight unhindered sliding of the roller blind 1 in the Parallel guides 2. At the free, facing away from the reel 7 End of the blind sheet 1 is a closure strip 15 as Handle bar mounted so that the edge of the fabric bordered and the guide pieces 5 are held in precise position. To For this purpose, the end strip 15 as a clamping profile or also be designed as a two-part profile, which screwed together, glued or riveted.

The roller blind system is preferably as a unit consisting of a shaft 7 for winding up the roller blind with winding mechanism, the blind sheet 1 itself with end strip 15 in one Installed housing attached to the roof 62 of the cabinet 6 becomes. The parallel guides 2 are each on the side walls 61 attached, this also as shown in Figure 2, be attached with tension springs 23 to the cooling furniture wall 61 can. In this way, the parallel guide 2 for clamping the roller blind 1 in the transverse direction exert a corresponding force.

As already mentioned above, the guidance of the roller blind 1 arranged at the edges by means of the hollow sections 2 Guide rods 3, which incorporated in on the edge of the blind sheet 1 Pocket 11 intervene. The roller blind 1 thus becomes and pushing with the bag 11 on this guide rod. 3 pushed. The guide rod 3 in turn is in the hollow profile 3 stationary, which has a longitudinal slot 21, through which the roller blind 1, with her bag the wrapped around the hollow section 2 arranged rod 3, is led out of this hollow section 2. This slot 21 However, it is only so wide that the blind sheet 1 pass can. The bag 11, which is thickened by the rod, becomes through the hollow profile or through the collar 51 of the guide piece 5 withheld. While the guide rod 3 stationary is, the roller blind 1 can be pushed up and down and is withdrawn during the rolling of the guide rod 3. expedient However, a part of the roller blind 1 remains with the handle 15 introduced in the pocket 11.

Thus, a completely safe lateral forced guidance is achieved. The opening of the refrigerator 6 is completely closed. Due to the gap-free termination on the side walls 61 of the Cooling cabinet 6 is achieved an optimal energy saving and prevents access when the blind is closed.

This roller blind system allows smallest dimensions, since when winding up of the fabric on the Rolloaufwindung 7 no bead is formed. This is of particular importance in vehicle construction. Instead of the resilient attachment of the parallel guide 2 can the roller blind 1 also by incorporating elastic threads be stretched in the weft direction.

Above is the roller blind system and the roller blind as a fabric described. With the appropriate binding techniques, the Roller blind but also be made as a warp knit.

LIST OF REFERENCE NUMBERS

1.10

blind web

11,11S, 11K

tube bag

12

strips of cloth

13

Perforation, opening

14

Solidified edge

15

Roller bar, end bar

16

fabric Elder

2

Parallel guide, hollow profile

21

longitudinal slot

23

thread

3

Corporate Office

31

Bend, foot

4

cap

41

recess

5

guide piece

51

collar

52

guide nozzle

6

refrigeration cabinets

61

Opening frame, cooling furniture wall

62

top, roof

63

base

7

Rolling Aufwindung

B

Width of the roller blind

K

warp

S

weft direction

Claims (19)

1. A roller blind system for covering openings, e.g. on refrigerators, windows, sliding sunroofs for vehicles and the like, wherein the longitudinal sides of a roller blind run have hose-like pockets (11) which are engaged by a parallel guide (2; 3) which is disposed on either side of the opening to be covered, characterized in that said hose-like pockets (11) are longitudinally embedded into said roller blind run (1) in such a way that said roller blind run is of approximately the same thickness across its entire width both in the area of said pockets (11) and the area outside said pockets (11).
2. The roller blind system according to claim 1, characterized in that said roller blind run (1) is made of a woven fabric into which said pockets (11) are woven in the warp direction.
3. The roller blind system according to one or more of claim 1 or 2, characterized in that pockets (11) are embedded into said roller blind run (1) so as to be distributed at certain intervals across the width or length thereof.
4. The roller blind system according to one or more of claim 1 to 3, characterized in that hose-like pockets (11S; 11K) are embedded into both in the warp direction and weft direction of said roller blind run (1).
5. The roller blind system according to one or more of claim 1 to 4, characterized in that said parallel guide disposed on either side of said opening to be covered is composed of a hollow profile (2) in which a guide bar (3) is disposed which engages said hose-like pocket of said roller blind run (1) wherein said hollow profile (2) has a longitudinal slot (21) through which said roller blind run (1) enters said hollow profile(2).
6. The roller blind system according to one or more of claim 1 to 5, characterized in that said guide bar (3) is movable in a transverse direction.
7. The roller blind system according to one or more of claim 1 to 6, characterized in that said hollow profile (2) is resiliently attached to the border (61) of said opening to be covered in a direction transverse to the movement of the roller blind.
8. The roller blind system according to one or more of the preceding claims, characterized in that said hollow profile (2), at the end opposed to the wind-up device (7) of said roller blind run (1), is closed by a cap (4) to which said guide bar (3) is attached.
9. A woven or knit roller blind run having hose-like pockets disposed on its side borders which serve for receiving guide bars, characterized in that said hose-like pockets (11) extend in the warp direction and are embedded into the roller blind run (1), wherein said roller blind run (1) is of approximately the same thickness across its entire width inclusive of the border areas defined by said pockets (11).
10. The roller blind run according to claim 9, characterized in that hose-like pockets (11) are embedded therein in the weft direction so as to be distributed at certain intervals, and which extend in the warp direction.
11. The roller blind run according to any one of claim 9 or 10, characterized in that said roller blind run has hose-like pockets (11S; 11K) disposed in a checked relationship in both the warp direction and weft direction.
12. The roller blind run according to any one of claim 9 to 11, characterized in that stripes (12) or fields (16) which are of a transparent structure are woven between said pockets (11).
13. The roller blind run according to one or more of claims 9 to 12, characterized in that said roller blind run (1) is laminated with a sheet.
14. The roller blind run according to one or more of claims 9 to 13, characterized in that said roller blind run (1) has a coating applied by a doctor-blade.
15. The roller blind run according to any one of claim 13 or 14, characterized in that through apertures are punched into said stripes (12) between said pockets (11).
16. The roller blind run according to one or more of claims 9 to 15, characterized in that said roller blind length (1) is sealed with aluminium.
17. The roller blind run according to one or more of claims 9 to 16, characterized in that said roller blind run (1) is cut into the desired width (B) from a fabric run of any width along said pockets (11).
18. The roller blind run according to one or more of claims 9 to 17, characterized in that guide pieces (5) are inserted into the mouths of said two pockets (11).
19. The roller blind run according to claim 18, characterized in that said guide pieces (5) form part of the termination strip (15) of said roller blind run (1).

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