EP3655612B1 - Pleated blind with telescopic guide rail - Google Patents

Description

The invention relates to a pleated blind.

The pleated blind is intended for a window or a door, whereby the term window or door in a broad sense also includes all comparable objects, for example also non-openable elements. The pleated blind is used, for example, as a privacy screen, glare protection, insect protection and / or for darkening.

The covering of the window or the door by the pleated blind is adjustable by a user. For this purpose, the pleated blind has a flat structure that can be pulled apart and pushed together, is pleated several times and in particular has a large number of essentially parallel folds. The flat structure can in particular be designed as a pleated fly screen. The cover is adjusted by moving and / or pulling apart or pushing this flat structure together.

In order to avoid tilting of the sheet when it is pulled apart or pushed together or to guarantee a defined movement of the sheet, it is guided in guide rails which are attached to a door or window frame. The length of the guide rails generally has to be adapted to the size of the door or window frame.

In particular in the case of pleated blinds, which are provided for insect protection, typically only a temporary fastening of the pleated blind on the door or window frame is provided.

For the state of the art, reference is made to the publication US 2010/0065227 A1 as well as the printed matter EP 2 128 374 A1 .

The invention is based on the object of specifying a new pleated blind which is characterized by quick and easy installation on door and / or window frames of different sizes.

This object is achieved by a pleated blind with the features of claim 1. Advantageous refinements and developments are the subject matter of the dependent claims.

The pleated blind according to the invention for a window or a door comprises a pull-apart and collapsible, multiply pleated and in particular a plurality of essentially parallel folds having a flat structure, at least one end strip arranged on the surface structure and two parallel to each other and perpendicular to the at least one end strip, Telescopic guide rails that can be attached to a window or door. The at least one end strip is guided displaceably in the longitudinal direction at least in sections along the telescopic guide rails and each telescopic guide rail comprises at least two guide strips which can be displaced in relation to one another in the longitudinal direction.

The invention is characterized in that the at least two guide strips of each guide rail are spring-loaded from one another in the longitudinal direction by means of a gas pressure spring.

Since the guide rails are designed to be telescopic, it is ensured that the pleated blind can be attached to door and / or window frames of different sizes. In addition, the at least two mutually displaceable guide strips of each guide rail are spring-loaded against each other, so that the telescopic guide rail in a particularly simple manner in a door or Window frame can be clamped positively. The use of adhesive agents such as adhesives, adhesive strips or the like can thus be avoided.

The at least one end strip is designed, for example, as a piping or piping rail. The planar structure can be made from different textile materials in a manner known per se. In a preferred embodiment, the flat structure is designed as a fly screen to protect against insects.

For frictional fixation of the pleated blind, fastening elements, in particular fastening clips or hooks, for engaging a window or door frame are arranged on each telescopic guide rail in an embodiment. The fastening elements are preferably pivotable over an angular range in order to further facilitate engagement in differently designed frames. The guide rails of each guide rail are through one of the

User-exerted force against each other and against the force exerted by the gas pressure spring can be displaced at least over a longitudinal section, so that the guide rails, in particular with the fastening elements attached to them at the end, can be brought into engagement with the door and / or window frame. The fixation of the guide rails on the door and / or window frame takes place in a non-positive manner by the spring force which is imparted by the gas pressure spring and is axially effective in the longitudinal direction.

In one embodiment, the at least two guide strips of each guide rail have a substantially U-shaped cross-sectional profile running transversely to the longitudinal direction. The guide strips are inserted into one another and can be displaced towards one another in the longitudinal direction. In a direction running transversely to the longitudinal direction, the guide strips can move relative to one another, in particular by a corresponding movement Shaping of the cross-sectional profiles or the provision of appropriately designed form-locking elements in the cross-sectional profile, such as a groove in which one or more projections engage, can be inhibited or prevented in order to facilitate assembly.

The at least two guide strips, in particular as inner and outer guide strips, are preferably inserted into one another in such a way that the guide rail formed by the at least two guide strips has an open side for guiding the end strip and / or the flat structure. At least one particularly edge-side section of the end strip or the flat structure engages in the open side of the guide rail, so that reliable guidance of the flat structure is ensured when it is adjusted by the user, in particular drawn apart or together.

The inner guide strip preferably has support webs for guiding the end strip and / or the flat structure. A bridging rail, which ends flush with the support webs, extends at least over a longitudinal section of the inner and outer guide strips into which the inner guide strip is inserted. The support webs and / or the bridging rail serve to further improve the guidance of the sheet-like structure in the guide rail and, in particular, to counteract any snagging. The support webs are designed to separate an installation space within the guide rail, in which in particular the aforementioned gas pressure spring is mounted, from an installation space that serves to guide the end strip and / or the flat structure. Since, in the assembled state, the outer guide bar is generally at least slightly displaced relative to the inner guide bar, the support webs of the inner guide bar may not extend in the longitudinal direction over the axial length of the telescopic guide rail, which is relevant for guiding the sheet-like structure. In the transition area between the inner and the outer The bridging rail, which ends flush with the support webs, is therefore provided for the guide rail in order, in particular, to prevent the sheet-like structure from getting caught in this area.

For example, the bridging rail is supported on an end piece for fixing the gas pressure spring and / or on the gas pressure spring, in particular on a cylinder of the gas pressure spring.

In one embodiment, the flat structure is arranged between two end strips running parallel to one another. For example, the end strips are attached to the top and bottom of the fabric, i.e. the fabric can be pulled apart or pushed together in a vertical direction. However, it is also possible, for example, for the sheet-like structure to be pushed apart or pushed together in the horizontal direction, that is to say the end strips are attached to the sheet-like structure on the left and right. In the first-mentioned case the guide rails are arranged vertically, in the second-mentioned case horizontally.

To further improve the guidance along the telescopic guide rails, one embodiment provides that the at least one end strip is provided with resilient retaining elements at each end. The resilient holding elements can, for example, be designed essentially as tabs and are guided displaceably in the guide rails. The resilient holding elements are designed in particular to rest on the inside of the guide rail with friction when the end strip or the flat structure attached to it is guided.

In a further development, provision is made for the holding elements to be designed for frictionally locking fixation of the at least one end strip along the guide rails. In this case, the spring force provided by the resilient holding elements is preferably dimensioned in such a way that the at Static friction mediated on the inside contact with the guide rail is sufficient to fix the end strip at any position along the guide rail, possibly against gravity or a restoring force mediated by the flat structure. Such designs are preferred because a user-side locking, for example using a locking bolt or pin or the like, can be dispensed with.

In one embodiment, end caps, which have latching elements, are arranged on each guide rail at the ends, in particular opposite one another. The latching elements have a shape that is complementary to the holding elements. The latching elements and the holding elements are designed to fix the at least one end strip in a predetermined, in particular end-side, position by means of a form fit. For this purpose, the retaining elements of the end strips snap into the locking elements. In one embodiment, the guide provided by the guide rail extends into the end caps. In particular, locking projections in the guide can serve as locking elements, which temporarily fix the end strips in positions on the end side, for example in an upper or lower position on the end side.

In a further development, end caps with a plurality of locking elements spaced apart from one another in the longitudinal direction are provided. In this way, it is possible to fix the end strip with the sheet-like structure attached to it in different positions by snapping it into place.

FIG 1

ein Ausführungsbeispiel einer an einem Fenster angebrachten erfindungsgemäßen Plisseejalousie in einer räumlichen Darstellung,

FIG 2

einen oberen Abschnitt der Plisseejalousie in einer Schnittdarstellung,

FIG 3

das Querschnittsprofil von Führungsschienen der Plisseejalousie in einer Schnittdarstellung,

FIG 4

ein Federmittel zur Anordnung in den teleskopierbaren Führungsschienen der Plisseejalousie in einer perspektivischen Ansicht,

FIG 5

eine endseitige Fixierung eines Federmittels an einer inneren Führungsleiste der Führungsschiene in einer perspektivischen Schnittdarstellung,

FIG 6

eine endseitige Fixierung eines Federmittels an einer äußeren Führungsleiste der Führungsschiene in einer perspektivischen Schnittdarstellung,

FIG 7

Endkappen zur endseitigen Montage an den Führungsschienen in einer Explosionsdarstellung,

FIG 8

einen Abschnitt der Führungsschiene mit einer darin angeordneten Überbrückungsschiene in einer ersten perspektivischen Schnittdarstellung,

FIG 9

einen weiteren Abschnitt der Führungsschiene mit der darin angeordneten Überbrückungsschiene in einer zweiten perspektivischen Schnittdarstellung,

FIG 10

einen Ausschnitt der an einem Fenster montierte Plisseejalousie in einer perspektivischen Ansicht.

In the following, the invention will also be explained in more detail with regard to further features and advantages on the basis of the description of exemplary embodiments and with reference to the accompanying schematic drawings. Show it

FIG 1

an embodiment of a pleated blind according to the invention attached to a window in a three-dimensional representation,

FIG 2

an upper section of the pleated blind in a sectional view,

FIG 3

the cross-sectional profile of guide rails of the pleated blind in a sectional view,

FIG 4

a spring means for arrangement in the telescopic guide rails of the pleated blind in a perspective view,

FIG 5

an end fixation of a spring means on an inner guide strip of the guide rail in a perspective sectional view,

FIG 6

an end fixation of a spring means on an outer guide strip of the guide rail in a perspective sectional view,

FIG 7

End caps for end assembly on the guide rails in an exploded view,

FIG 8

a section of the guide rail with a bridging rail arranged therein in a first perspective sectional illustration,

FIG 9

a further section of the guide rail with the bridging rail arranged therein in a second perspective sectional view,

FIG 10

a section of the pleated blind mounted on a window in a perspective view.

Corresponding parts and components are denoted by the same reference symbols in the figures.

FIG 1 shows a pleated blind 1 mounted on a window 3 according to the invention. The pleated blind 1 comprises a flat structure 2 that can be pulled apart and pushed together, is pleated several times and thus has a large number of essentially parallel folds 16 and is formed, for example, from a fly screen. A terminating strip 5 (also: piping, piping strip) is provided at the top and bottom of the sheet-like structure 2, which is aligned parallel to the folds 16 of the sheet-like structure 2 and thus runs horizontally or horizontally. In Figure 1 only the upper end strip 5 is shown, which is latched in an upper position O.

Furthermore, the pleated blind 1 has two guide rails 6 attached to the window 3 parallel to one another and perpendicular to the folds 16 of the sheet-like structure 2, which are non-positively attached to a frame 4 of the window 3. For frictional attachment to the frame 4, the guide rails 6 are telescopic, i. H. formed variable in length in the longitudinal direction L. In addition, the guide rail 6 is spring-loaded in the longitudinal direction L, so that it can be clamped in the frame 4 in a force-locking manner. To fasten the guide rails 6, end caps 7 with fastening elements 8 designed as fastening hooks which engage in the frame 4 of the window 3 are attached at each end. The frictional connection effective in the longitudinal direction L is brought about by a gas pressure spring 18 arranged in the telescopic guide rail 6.

The end strips 5 and the flat structure 2 connected to them are guided along the telescopic guide rails 6 in the longitudinal direction L. For this purpose, a respective end-side or edge-side section of the end strips 5 and the sheet-like structure 2 is in a guide F of the guide rails 6 arranged on the side, for example in FIG FIG 2 shown, recorded. At the in FIG 1 In addition, a handle 15 is provided which is used to lock and unlock the horizontally extending upper end strip 5 in the upper position O, as shown in the upper end strip 5.

FIG 2 shows details of the fastening of the upper end strip 5 in the upper position O in a sectional view. A guide F provided by the guide bar 6 extends into the area of the end cap 7. Within the guide F or the guide rail 6, an edge-side section of the end strip 5 is displaceably guided. This section of the end strip 5 has a resilient holding element 9 which is designed approximately in the form of a tab and rests against the guide rail 6 when the end strip 5 is moved along the guide rail 6. The frictional engagement between the guide rail 6 and the holding element 9 is typically sufficient to fix at least the horizontally running end strip 5 at any position along the guide rail 6. A latching element 10 is provided at the upper position O in order to lock the end strip 5. The end strip 5 is fixed in the upper position O with increased holding force by means of a form fit mediated between the holding element 9 and the latching element 10. This serves in particular to enable the sheet-like structure 2 to be pulled apart against any restoring force caused by the pleating. In the exemplary embodiment shown, the latching element 10 is constructed as a latching projection which has a shape corresponding to the holding element 9 and protrudes into the guide F. To lock the end strip 5 in the upper position O, only the end strip 5 is moved upward in the longitudinal direction L by the user and placed over the latching element 10 with the exertion of force, so that the holding element 9 is in the position shown in FIG FIG 2 upper position O shown engages. Unlocking takes place through a corresponding movement in the opposite direction. The holding element 9 is designed to be resilient and can be deflected at least slightly in a direction running transversely to the end strip 5.

FIG 3 shows a cross-sectional profile of the guide rail 6 transversely to the longitudinal direction L. In the illustrated embodiment, the telescopic guide rail 6 comprises two mutually displaceable guide rails 11, 12 in the longitudinal direction L, i.e. perpendicular to the drawing plane shown -shaped cross-sectional profiles. The open sides of the U-shaped guide strips 11, 12 point to the same side, so that the end strip 5 with the holding element 9 or the flat structure 2 can be introduced there.

For linear guidance of the guide strips 11, 12 in the longitudinal direction, laterally protruding and opposing projections 14 are provided on the inner guide strip 11, which protrusions engage in correspondingly designed grooves 17.

The inner guide strip 11 has inwardly directed support webs 13 which serve to guide the end strip 5 or the sheet-like structure 2. In particular, the support webs 13 delimit an area provided for guiding the end strip 5 or the flat structure 2 from an inner area of the guide rail 6, in which a gas pressure spring 18 is arranged in the final assembled state.

FIG 4 shows the gas pressure spring 18 arranged in the guide rail 6 in a perspective illustration. The gas pressure spring comprises a piston 19 which is movably guided in a cylinder 20. A gas, in particular under pressure, is stored in the cylinder 20. When the piston 19 moves into the cylinder 20, the gas compressed within the cylinder 20, so that a correspondingly oppositely directed restoring force is generated.

End pieces 21, 22 are fastened at each end on the gas pressure spring by means of three screws 23 each. The first end piece 21 is fastened at the end of the piston 19 and serves to fasten the inner guide strip 11. The first end piece 21 has a trapezoidal cross-sectional profile which, in the final assembled state, lies positively against the inner area of the inner guide strip 11 delimited by the support webs 13. This is in detail in Figure 5 shown.

How out FIG 4 can be seen, the second end piece 22 is attached to the cylinder 20 of the gas pressure spring. The second end piece 22 has an essentially rectangular cross-sectional profile which corresponds to the configuration of the outer guide strip 12. For example, from FIG 6 As can be seen, the second end piece 22 rests on the inside against the outer guide strip 12 in the fully assembled state. For this purpose, the second end piece 22 has further, laterally protruding projections 24 which are inserted into correspondingly shaped further grooves 25 (cf. FIG 4 ) the outer guide bar 12 (cf. FIG 3 ) intervene.

How out FIG 6 As can be seen, the end pieces 21, 22 are each supported in the longitudinal direction L on the end caps 7 attached to the end of the guide rail 6.

From the exploded view of the FIG 7 it can be seen that the end caps 7 are in two parts. A first end cap part 26 has slots 28, in particular for the pivotable guidance of the fastening element 8 in the finally assembled state. The first end cap element 26 can be connected to a second end cap element 27 by means of three screw connections. For this purpose, corresponding screw guides 29 are provided on the first and second end cap elements 26, 27.

To fasten the end cap 7 on the guide rail 6 at the end, the end cap elements 26, 27 have fastening sections 30, 31 which, in the assembled state, are provided to be inserted into the inner and outer guide strips 11, 12. The cross-sectional profile of the fastening sections 30, 31 thus correspond to the shape of the inner and outer guide strips 11, 12. In FIG 7 an end cap 7 for attachment to the inner guide strip 11 is shown as an example. The fastening sections 30, 31 shown by way of example have a trapezoidal cross-sectional profile in the assembled state, which is designed to be inserted into the inner guide strip 11 at the end.

How out FIG 6 As can be seen, a bridging rail 32 is arranged in the transition area between the outer guide strip 12 and the inner guide strip 11, which is flush with the support webs 13 and is intended to prevent the end strip 5 guided in the guide rail 6 or the flat structure 2 attached to it from getting caught.

The bridging rail 32 is supported, as in FIG FIG 8 and FIG 9 shown, both on the cylinder 20 of the gas pressure spring 18, and on the end piece 22 from. To support it on the cylinder 20, the bridging rail 32 has shell-shaped support elements 33.

FIG 10 illustrates schematically the attachment of the pleated blind 1 to the window 3 according to a preferred variant. The pleated blind 1 is attached to the frame 4 of the window 3 via the telescopic guide rails 6. The gas pressure spring 18 has the effect that the inner and outer guide strips 11, 12 are resiliently pretensioned against one another in the longitudinal direction L. When the fastening element 8 is inserted into the frame 4, the guide strips 11, 12 are shifted slightly relative to one another, so that the gas pressure spring 18 arranged within the guide rail 6 exerts a restoring force. This will make the guide rails 6 fixed to the frame 4 in a non-positive manner. The guide rail 6 is preferably mounted with its outer guide strip 12 facing upwards so that water can run off better.

List of reference symbols

1

Pleated blind

2

Fabrics

3

window

4th

framework

5

End strip

6th

Guide rail

7th

End cap

8th

Fastener

9

Retaining element

10

Locking element

11th

Guide bar

12th

Guide bar

13th

Support web

14th

Jump

15th

Handle

16

wrinkles

17th

Groove

18th

Gas spring

19th

Pistons

20th

cylinder

21

End piece

22nd

End piece

23

screw

24

head Start

25th

Groove

26th

End cap element

27

End cap element

28

slot

29

Screw guide

30th

Fastening section

31

Fastening section

32

Bridging rail

33

Support element

L.

Longitudinal direction

O

position

F.

guide

Claims (10)

1. Pleated blind (1) for a window (3) or a door, comprising

   - a flat structure (2) which can be pulled apart and pushed together, is pleated several times and in particular has a multiplicity of essentially parallel pleats (16)

   - at least one end strip (5) arranged at the end of the flat structure (2), and

   - two telescopic guide rails (6) running parallel to one another and perpendicular to the at least one end strip (5) and attachable to a window (3) or a door wherein the at least one end strip (5) is guided displaceably in the longitudinal direction (L) at least in sections along the telescopic guide rails (6) and each telescopic guide rail (6) comprises at least two guide strips (11, 12) which are displaceable relative to one another in the longitudinal direction (L),

   characterized in that
   the at least two guide strips (11, 12) of each guide rail (6) are spring-loaded from one another in the longitudinal direction (L) by means of a gas pressure spring (18).
2. Pleated blind (1) according to claim 1,
   wherein fastening elements (8), in particular fastening clips, for engagement in a window or door frame are arranged at the ends of each telescopic guide rail (6).
3. Pleated blind (1) according to one of the preceding claims,
   wherein the at least two guide strips (11, 12) of each guide rail (6) have a substantially U-shaped cross-sectional profile extending transversely to the longitudinal direction (L).
4. Pleated blind (1) according to claim 3,
   wherein the at least two guide strips (11, 12) are inserted into one another in such a way that the guide rail (6) formed by the at least two guide strips (11, 12) has an open side for guiding the end strip (5) and/or the flat structure (2).
5. Pleated blind (1) according to one of the preceding claims,
   wherein an inner guide strip (11) of the at least two guide strips (11, 12) has support webs (13) for guiding the end strip (5) and/or the flat structure (2), and a bridging rail (32), which terminates flush with the support webs (13), extends at least over a longitudinal portion of the inner guide strip (11) and an outer guide strip (12) of the at least two guide strips (11, 12), into which the inner guide strip (11) is inserted.
6. Pleated blind (1) according to claim 5,
   wherein the bridging rail (32) is supported on an end piece for fixing the gas pressure panels (18) and/or on the gas pressure panels (18), in particular on a cylinder (20) of the gas pressure spring.
7. Pleated blind (1) according to one of the preceding claims,
   wherein the flat structure (2) is arranged between two end strips (5) extending parallel to each other.
8. Pleated blind (1) according to one of the preceding claims,
   wherein the at least one end strip (5) is provided at each end with resilient retaining elements (9) which are displaceably guided in the guide rails (6).
9. Pleated blind (1) according to claim 8,
   wherein the holding elements (9) are designed for frictionally fixing the at least one end strip (5) along the guide rails (6).
10. Pleated blind (1) according to one of the claims 8 or 9,
    wherein end caps (7) are arranged at the ends of
    each guide rail (6), which end caps (7) have latching elements (10) with a shape complementary to the retaining elements (9), wherein the latching elements (10) and the retaining elements (9) are designed to fix the at least one end strip (5) in a predetermined position (O), in particular at the end, by means of a form fit.

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