EP3725996A2 - Roller blind - Google Patents

Abstract

The invention relates to a protective roller blind (2) for arrangement on a window (1) or a door, comprising a winding shaft (9) on which a fabric curtain (8) can be arranged so that it can be wound up and unwound, at least one compensation device (11) for compensation of the crooked winding of the fabric hanging (8) is arranged on the winding shaft (9).

Description

The invention relates to a protective roller blind for arrangement on a window or a door, comprising a winding shaft, on which a fabric curtain and / or a curtain made of a single-layer or multilayer plastic film can be arranged so that it can be wound up and unwound.

The invention further relates to a method for winding and unwinding a fabric curtain and / or a curtain made of a single or multi-layer plastic film on a winding shaft of a protective roller blind, with a grip strip optionally being arranged on the fabric web.

Protection roller blinds against insects are used to prevent insects from entering buildings. Compared to insect protection designs with frames firmly attached to the window frame, roller blinds have the advantage that they can be easily removed by rolling them up at any time. However, it has been found that insect protection roller blinds often have a property that has a disruptive effect on the operation of the roller blind, which may even have a damaging effect. For reasons that are currently not clearly understandable, insect protection fabrics are wound up crookedly. The fabric web is shifted further and further to one side of the winding shaft. This shifting goes so far until the fabric web is present on the side part of the protective roller blind. If this occurs, the edge of the fabric strip touches the side part as it continues to be wound up, the fabric sheet still tending to shift in the direction of the side part. This not only creates an "unattractive" lap, but this can also mean that the insect protection fabric is no longer properly guided laterally or even breaks.

It is the object of the invention to improve the operation of a protective roller blind with a fabric web for a window or a door.

In the case of the protective roller blind mentioned at the outset, the object of the invention is achieved in that at least one compensation device is arranged on the winding shaft to compensate for the uneven winding of the fabric curtain.

The arrangement of the compensation device can at least compensate for the effect of the twisting of the fabric hanging. This enables undisturbed operation of the protective roller blind can be maintained even if the fabric web is still wound crookedly.

According to a further embodiment of the invention it can be provided that the winding shaft is arranged horizontally displaceable. The shift of the fabric hanging to one side of the protective roller blind can thus be compensated for by the shifting of the winding shaft, so that the fabric hanging can be unwound from the winding shaft and also wound up again without problems. Since the winding shaft is made of a more robust material than the fabric curtain, the risk of damage to the roller blind can be reduced.

For the horizontal displacement of the fabric curtain, it can preferably be provided that the compensation device has a fixed element with a first thread and the winding shaft has an element with a second thread that is horizontally displaceable with respect to the fixed element, the first thread engaging the second thread . An inexpensive design of the compensation device that is easy to manufacture and can thus be made available. This acts as a result of the rotation of the winding shaft when winding or unwinding the fabric hanging, so that no additional drive is required for the horizontal adjustment of the winding shaft.

According to another embodiment of the invention, similar to the thread solution, it can be provided that the compensation device has a fixed element with a spiral spring and the winding shaft has an element that is horizontally displaceable with respect to the fixed element and has a thread-like surface or at least one web protruding over the surface having, wherein the thread-like surface or the web engages between the spring turns of the spiral spring.

According to a further embodiment of the invention it can be provided that a grip strip is arranged on the fabric hanging, the grip strip having a first grip strip part connected to the fabric hanging and a second grip strip part, and the first grip strip part being guided horizontally in the second grip strip part. With this embodiment variant, the inclined winding of the fabric web cannot be prevented, but it can be achieved that the grip strip remains in its position even when inclined winding. It can prevent jamming of the handle bar in the side Guide profiles of the roller blinds can be prevented, in other words, the effect of the uneven winding can be compensated.

In order to simplify the displaceability of the two grip strip parts, further design variants provide that the second grip strip part has guide rollers on which the first grip strip part is mounted and / or that the second grip strip part has at least one sliding element on which the first grip strip part is mounted.

Furthermore, the object of the invention is achieved with the method mentioned at the beginning, according to which it is provided that the winding shaft is adjusted horizontally during the winding and unwinding of the fabric web and / or that a grip strip is used which has a first grip strip part and which is connected to the fabric curtain has a second grip strip part, and that during the winding and unwinding of the fabric web, the first grip strip part is adjusted in the horizontal direction relative to the second grip strip part. The advantages mentioned above can thus be achieved.

For a better understanding of the invention, it is explained in more detail with reference to the following figures.

Fig. 1

ein Fenster mit vorgesetztem Schutzrollo;

Fig. 2

ein Detail einer ersten Ausführungsvariante des Schutzrollos mit einer Kompensationsvorrichtung;

Fig. 3

ein Detail einer zweiten Ausführungsvariante des Schutzrollos mit einer Kompensationsvorrichtung;

Fig. 4

ein Detail einer dritten Ausführungsvariante des Schutzrollos mit einer Kompensationsvorrichtung;

Fig. 5

das Detail der dritten Ausführungsvariante in Seitenansicht;

Fig. 6

ein Detail einer weiteren Ausführungsvariante des Schutzrollos;

Fig. 7

einer vierte Ausführungsvariante des Schutzrollos in Ansicht von vorne;

Fig. 8

die vierte Ausführungsvariante des Schutzrollos in Ansicht von oben und geschnitten.

They each show in a simplified, schematic representation:

Fig. 1

a window with a protective roller blind in front;

Fig. 2

a detail of a first variant of the protective roller blind with a compensation device;

Fig. 3

a detail of a second variant of the protective roller blind with a compensation device;

Fig. 4

a detail of a third embodiment of the protective roller blind with a compensation device;

Fig. 5

the detail of the third variant in side view;

Fig. 6

a detail of a further embodiment of the protective roller blind;

Fig. 7

a fourth variant of the protective roller blind in a view from the front;

Fig. 8

the fourth variant of the protective roller blind in view from above and cut.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference symbols or the same component designations, whereby the disclosures contained in the entire description can be transferred accordingly to the same parts with the same reference symbols or the same component names. The location details chosen in the description, such as above, below, to the side, etc., referring to the figure immediately described and shown, and if there is a change in position, these position details are to be transferred to the new position accordingly.

In Fig. 1 a window 1 is shown with a protective roller blind 2 (generally also referred to as a roller blind) arranged thereon. The window 1 preferably comprises a conventional frame 3, but can also be designed as fixed glazing. In the latter case in particular, the protective roller blind 2 can be designed to be remotely controllable.

Such windows 1 can be used to close wall openings in a building. Since they are known per se, no further details are required. It should only be mentioned that, although not shown, the window 1 can also comprise at least one casement and at least one glass element.

It should also be mentioned that within the scope of the invention the protective roller blind 2 can also be arranged on a door, in particular a balcony door or a patio door, which for the most part can have the same structure.

The protective roller blind 2 is connected to the frame 3. The connection can be made without tools and non-destructively, as is the case, for example, in FIG AT 517 909 A1 is described. In addition to this attachment variant of the protective roller blind 2, it is also possible that the protective roller blind 2 is connected to the frame via connecting means, such as screws, and / or is arranged under plaster, i.e. in a plastered box, for example a roller shutter box.

The protective roller blind 2 is arranged on an outer surface 4 of the window frame 3. In the installed position of the window 1, the outer surface 4 faces the surroundings of the building. In other words, the roller blind 2 is not mounted on the room side on the frame 3.

However, it can also be provided that the protective roller blind 2 is arranged on an inside of the window frame 3.

The protective roller blind 2 can have a grip strip 5 and a fastening strip 6. In the rolled out state of the protective roller blind 2, the grip strip 5 can be hooked into the fastening strip 6 and thus fixed. However, the handle bar 5 can also be fixed differently, for example with hook-shaped elements, as is known per se from the prior art.

The protective roller blind 2 can also have lateral guide profiles 7, as shown in FIG Fig. 1 is shown. The protective roller blind 2 can, however, also be designed without these guide profiles 7.

The protective roller blind 2 also has a flat fabric curtain 8. This is attached to a winding shaft 9 and can be unwound from this in the use state or wound up in the idle state. The curtain can be guided in the lateral guide profiles 7 which may be present.

The winding shaft 9 is preferably arranged in the area of the upper frame profile of the window frame 3 or generally in the upper end area of the protective roller blind 2, in particular in a possibly separate receiving box 10 for receiving the rolled-up fabric hangings 8 (also referred to as a fabric web). The fabric curtain 8 can thus be stretched between the winding shaft 9 and the fastening strip 6.

However, it is also possible for the winding shaft 9 to be arranged in the area of the lower frame profile or in the area of a lateral frame profile of the frame 3 (that is, upright). In this case, the above remarks on roller blind 2 may have to be adapted accordingly.

The grip strip 5 and the fastening strip 6 as well as the possibly existing guide profiles 7 are preferably made of a metallic material such as aluminum or steel.

The fabric curtain 8 can, depending on the use of the roller blind 2, made of a sun protection material, such as a textile fabric, e.g. a so-called textile screen, or a glass fiber fabric, a polyester fabric, etc., or a (grid-shaped) insect protection material such as a glass fiber fabric or fiberglass mesh , etc. or made of a (lattice) pollen protection and / or (lattice) fine dust material, such as a fiberglass fabric or fiberglass mesh, etc., consist. However, a curtain made of a single-layer or multilayer plastic film and / or a single-layer or multilayer photovoltaic film can also be provided instead of or in addition to the fabric curtain 8. The protective roller blind 2 can thus in particular be a sun protection device and / or a glare protection device and / or a privacy protection device and / or a blackout blind and / or an insect protection device and / or a pollen protection device and / or a fine dust protection device, etc.

With regard to the sun protection material, it should be noted that the use of a textile screen has the advantage that light is let through so that a view of the outside is possible despite the heat and glare protection.

The winding shaft 9 comprises an automatic draw-in mechanism for the fabric curtain 8 so that it can be drawn open automatically in the extended state. The automatic feed mechanism can be designed in accordance with the prior art, for example with a spring preload.

The protective roller blind 2 also has a compensation device 11, which is shown in FIG Fig. 1 is only hinted at. With the compensation device 11, the effect of the inclined winding up of the fabric curtain 8 on the operability of the protective roller blind 2 can be compensated or eliminated. When winding at an angle, the individual layers of the fabric web 8 on the winding shaft 9 are not arranged exactly one above the other, but rather the layers shift in the direction of one of two lateral end regions 12, 13 of the winding shaft 9. It was found that the fabric curtain 8 of a protective roller blind 2 always winds up askew in the direction of one of the two end regions 12, 13. There is therefore no reversal of direction in the event of repeated winding and unwinding during the entire service life of the protective roller blind 2. For this reason, it is therefore sufficient if the protective roller blind 2 has only one compensation device 11. Of course, a plurality of compensation devices 11, which may also be different, can be arranged in a protective roller blind 2.

According to the preferred embodiment of the protective roller blind 2, the fabric curtain 8 is allowed to wind crookedly and a corresponding compensation option is created for this so that the operation of the protective roller blind 2 is not hindered.

According to one embodiment of the protective roller blind 2, it can be provided that the compensation device 11 effects the horizontal displacement of the winding shaft 9. For this purpose, the compensation device 11 can, for example, have a separate drive, e.g. an electric motor, have or consist thereof. The drive is functionally connected to the winding shaft 2, for example via a belt or a gear drive. When the fabric hanging 8 is wound up or unwound, the drive is activated as required, e.g. automatically via a sensor which detects the incipient winding of the fabric hangings 8 and initiates the horizontal adjustment of the winding shaft 2.

The horizontal displacement of the winding shaft 9 ensures that the fabric curtain 8 is just being wound up. For this purpose, the winding shaft 9 is shifted horizontally in the direction in which the fabric hanging would wind up at an angle. A lateral displacement of the fabric curtain 8 is thus compensated for by a lateral movement of the winding shaft 9 in the same direction.

It should be pointed out at this point that with a vertically arranged winding shaft 9 the displacement naturally takes place in the vertical direction.

To simplify the protective roller blind 2, a preferred embodiment variant provides that no separate drive is arranged per se for the lateral displacement of the winding shaft, but rather the rotation of the winding shaft 9 when winding or unwinding the fabric curtain 8 is used, which is anyway is performed.

For this variant, which is described in Fig. 2 As shown in detail, the compensation device 11 has a stationary element 14. The fixed element 14 is arranged in a rotationally fixed manner (i.e. not rotatable) in the protective roller blind 2, for example in a rotationally fixed manner in a side part 15 of the receiving box 10 ( Fig. 1 ) of the roller blind 2 stored. The non-rotatable connection can be produced, for example, by means of form-fit elements that have flat, non-curved surfaces, as is known per se for the formation of non-rotatable connections. How out Fig. 2 As can be seen, the stationary element 14 can be arranged at least partially within the winding shaft 9, which can be designed as a hollow shaft. The fixed element 14 does not change its horizontal position, however, and is therefore arranged in a stationary manner in this regard.

The stationary element 14, which can for example be at least approximately bolt-shaped, in particular as a bearing pin for the winding shaft 9, has a first thread 16 on at least a partial area of its surface, which in the embodiment variant shown is designed as an external thread.

A horizontally displaceable element 17 is in engagement with the stationary element 14. This horizontally displaceable element 17 is in particular sleeve-shaped. For the horizontal adjustment of the horizontally displaceable element 17, it has a second thread 18 which, in the embodiment variant shown, extends over a partial area of the inner surface of the horizontally displaceable element, that is to say is designed as an internal thread.

The first thread 16 of the stationary element 14 is in engagement with the second thread 18 of the horizontally displaceable element 17.

Furthermore, the horizontally displaceable element 17 is connected to the winding shaft 9, so that the horizontal adjustment of the horizontally displaceable element 17 also effects the horizontal displacement of the winding shaft 9. For the connection, the horizontally displaceable element 17 can have at least one recess 19, for example a groove, into which a projection 20 of the winding shaft 9 or an intermediate piece 21 connected to it engages, as shown in FIG Fig. 2 can be seen.

The horizontally displaceable element 17 can also be designed in one piece with the winding shaft 9, so that the winding shaft 9 itself can be provided with the second thread 18 on its inner surface.

In Fig. 2 the fabric curtain 8 is shown in the rolled-up state. The stepped side area clearly shows that the fabric curtain 8 has not been wound up straight but at an angle.

If the fabric curtain 8 is now unwound, the winding shaft 9 rotates at the in Fig. 2 shown design variant counterclockwise. This rotational movement moves the horizontally displaceable element 17 along the fixed element 14 (to the left). This increases the distance between the winding shaft 9 and the side part 15. This in turn has the effect that the fabric curtain 8 that is still wound up is also moved in the direction in which the winding shaft 9 is also moved. Thus, the skew of the fabric can be compensated.

The first thread 16 can have a pitch that is selected from a range from 0.5 mm to 1.5 mm, in particular from a range from 0.6 mm to 1.0 mm.

Furthermore, the first thread 16 can have a flank angle which is selected from a range from 45 ° to 90 °, in particular from a range from 50 ° to 70 °.

The first thread 16 can be a metric fine thread.

The second thread 18 can be correspondingly adapted to the first thread 16.

In the in Fig. 2 The illustrated embodiment variant, the compensation device 11 is arranged on the side of the winding shaft 9 into which the fabric curtain 8 also winds at an angle (corresponds to the end region 12 in Fig. 1 ). The / a compensation device 11 can, however, alternatively or in addition to this in the other end area 13 ( Fig. 1 ) be arranged.

It should be pointed out that the winding can be oblique to the end area 12 or 13. Thus the representation in Fig. 2 with respect to the end region 12 is not to be understood as restrictive. As stated above, however, the fabric curtain 8 does not change the direction in which it winds at an angle during its total service life. The direction of the displacement of the winding shaft 9 during unwinding or when winding up the fabric curtain 8 thus also remains the same over the total service life of the protective roller blind 2, so it does not need to be changed.

In the event that the compensation device 11 is not arranged on the side into which the fabric curtain 8 winds at an angle, that is, not on the right-hand side in the embodiment variant Fig. 2 , the first and second threads 16, 18 can also be arranged the other way around, that is to say the winding shaft 9 can be provided with an external thread or a horizontally displaceable element 17 with an external thread, and the fixed element 14 have an internal thread.

According to a further embodiment variant of the protective roller blind 2, which according to that Fig. 2 is very similar, it can be provided that the compensation device 11 shown in Fig. 3 is shown, has a fixed element 14 with a spiral spring and the winding shaft 9 ( Fig. 1 ) has an element 17 which is horizontally displaceable with respect to the fixed element 14 and has a thread-like (inner) surface 23, the spiral spring 22 engaging in the thread-like surface 23. The thread-like surface 23 can also be formed over only a partial area of the entire (inner) surface of the horizontally adjustable element 17. For example, it is sufficient if this surface 23 has only one web protruding over the surface, which is preferably designed as an annular web, but can also extend only over a partial area of the inner circumference of the horizontally displaceable element 17. A plurality of web-shaped projections can also be arranged. The projection or projections can have an at least approximately blade-like cross-sectional shape.

The horizontally displaceable element 17 is again preferably designed as a sleeve.

The thread-like surface or the at least one projection can engage between the spring coils. By rotating the horizontally adjustable element 17, it moves together with the winding shaft 9 in a similar way to the previous variant ( Fig. 2 ) with each turn by the wire size of the spiral spring 23.

The spiral spring 23 is arranged without a gap in the radial direction on the fixed element 14 (that is, it is tightly fitting). A front and a rear end 24, 25 of the spiral spring 23 are received in corresponding recesses in the stationary element 14 in order to prevent the spiral spring 24 from twisting. For this purpose, the ends 24, 25 can also be bent, as shown in FIG Fig. 3 can be seen.

After the variant of the protective roller blind 9 according to Fig. 3 similar to that after Fig. 2 is, the remarks on the variant according to Fig. 2 also on those after Fig. 3 be applied so that reference is made to them to avoid repetition. This also applies in particular (but not only) to the arrangement of the components of the compensation device 11 in the protective roller blind 2.

The wire thickness of the spiral spring 23 can be between 1 mm and 3 mm.

Furthermore, a distance 26 between the spring coils can be between 0 mm and 4 mm.

The spiral spring 23 can consist of a spring steel wire, in particular a right-angled spring steel wire.

The Fig. 4 and 5 show a section from a further variant of the protective roller blind 2. In this variant, the compensation device 11 is formed by the grip strip 5. For this purpose, the grip strip 5 is designed in two parts. It has a first grip strip part 27 and a second grip strip part 28. The two handle strip parts 27, 28 are designed in particular as elongated profile elements. In particular, the second grip strip part 28 is shorter than the first grip strip part 27. The first grip strip part 27 can, for example, be 1% to 5% longer than the second grip strip part 28, based on the length of the second grip strip part 28.

The first grip strip part 27 is directly connected to the fabric hanging 8, as shown in particular Fig. 5 can be seen. For this reason, the first grip strip part 27 can also be referred to as a fabric strip. The connection can be established, for example, via a groove 29 into which a thickened end 30 of the fabric curtain 8 engages. An opening of the groove 29 in the direction of the fabric curtain 8 is made narrower than the thickness of the thickened end 30, as shown in FIG Fig. 5 is shown. The first grip strip part 27 can, however, also be connected to the fabric hanging 8 in some other way, for example glued to it, etc.

The first grip strip part 27 is guided horizontally displaceably in the second grip strip part 28. For this purpose, the first grip strip part 27 can have a first angled groove 31 into which a hook web 32 of the second grip strip part 28 engages, as shown in FIG Fig. 6 is shown.

For easier horizontal displaceability of the first grip strip part 27 relative to the second grip strip part 28, it can be provided that the second grip strip part 28 has guide rollers 33 on which the first grip strip part 28 is mounted. For better guidance, it can be provided that a guide groove 34 in the first grip strip part 27 has at least approximately a cross section in the form of an elongated hexagon, as is the case with the Fig. 5 shows. Accordingly, the guide rollers 33 can also have wedge-shaped guide surfaces 35 adapted to them. The design can also be reversed, so that the guide rollers are designed as wedge rollers (in the manner of a V-belt) and the guide groove 34 have projections with an approximately triangular cross section. Other embodiments are also possible in this regard.

Instead of the guide rollers 33, according to a further embodiment variant, the second grip strip part 28 can have at least one sliding element, e.g. a strip made of PTFE, on which the first grip strip part 27 is mounted. For this purpose, the sliding element can be connected to the second grip strip part 28.

In addition, in all of the design variants with the first and second grip strip parts 27, 28 there is the possibility that the surfaces sliding off one another can be coated with a friction-reducing layer, e.g. a bonded varnish.

It can further be provided that for better guidance of the first grip strip part 27 on the second grip strip part 28 during horizontal adjustment, the second grip strip part has a groove 36 with a triangular cross section. The first grip strip part can have a web 37, the cross-sectional shape of which is adapted to that of the groove 36, as shown in FIG Fig. 5 can be seen.

If, in the embodiment variant with the two grip strip parts 27, 28, the fabric web 8 runs to the left or right during winding, this can be compensated for by the two-part grip strip 5. It can thus be achieved that the grip strip 5 remains in its position when the fabric hanging 8 extends, ie that the grip strip 5 is not tilted and thus remains aligned horizontally. It is possible that the second grip strip part 28 in the lateral guide profiles 7 ( Fig. 1 ) and the first grip strip part 27 compensates for the course of the fabric curtain 8.

In the Fig. 7 and 8th a further embodiment of the protective roller blind 2 is shown in a view from the front and in a sectional view from above. In contrast to the embodiment variant just described, in this one the grip strip 5 is made in one piece. In order to be able to compensate for the consequences of the fabric hanging 8 being unevenly wound, guide elements 38 are provided on the left and right of the grip strip 5, in which the grip strip 5 is received in a horizontally displaceable manner. The grip strip 5 can thus move freely to the left or right by a maximum depth of 39 a guide groove 40 of the guide elements 38. The guide elements 38 are in turn received in the lateral guide profiles 7 of the roller blind 2 so as to be vertically displaceable (in a corresponding groove, as shown in FIG Fig. 8 can be seen. The Displacement takes place with the winding or unwinding of the fabric hanging 8. After the grip strip 5 is connected to the fabric hanging 8, it also moves up or down. In order to take along the two guide elements 38, they are connected to the grip strip 5. The connection is made in such a way that the horizontal displaceability of the grip strip 5 in the guide grooves 40 is not hindered. For this purpose, the guide elements 38 can be designed, for example, in the form of a sleeve or at least approximately in this form and pushed onto the grip strip 5.

To improve the sliding up and down of the guide elements 38 in the guide profiles 7, these can be designed as sliding elements, e.g. coated with a sliding coating or have or consist of a material with low friction in relation to the material of the guide profiles 7.

The exemplary embodiments show possible design variants of the protective roller blind 2, it being noted at this point that combinations of the individual design variants with one another are also possible.

For the sake of order, it should finally be pointed out that for a better understanding of the structure, the protective roller blind 2 and the compensation device 11 are not necessarily shown to scale.

List of reference symbols

1 window 31 Groove 2 Protective roller blind 32 Hook bridge 3 Frame 33 Leadership role 4th surface 34 Guide groove 5 Handle bar 35 Guide surface 6th Fastening strip 36 Groove 7th Guide profile 37 web 8th Fabric hanging 38 Guide element 9 Winding shaft 39 depth 10 Reception box 40 Guide groove 11 Compensation device 12 End area 13 End area 14th element 15th Side part 16 thread 17th element 18th thread 19th Recess 20th head Start 21st Intermediate piece 22nd Coil spring 23 surface 24 The End 25th The End 26th distance 27 Handle strip part 28 Handle strip part 29 Groove 30th The End

Claims (9)

Protective roller blind (2) for arrangement on a window (1) or a door, comprising a winding shaft (9) on which a fabric curtain (8) and / or a curtain made of a single or multi-layer plastic film can be arranged so that it can be wound up and unwound characterized in that at least one compensation device (11) is arranged on the winding shaft (9) to compensate for the crooked winding of the fabric hanging (8). Protective roller blind (2) according to Claim 1, characterized in that the winding shaft (9) is arranged to be horizontally displaceable. Protective roller blind (2) according to claim 2, characterized in that the compensation device (11) has a fixed element (14) with a first thread (16) and the winding shaft (9) has an element which can be moved horizontally with respect to the fixed element (14) (17) with a second thread (18), wherein the first thread (16) engages in the second thread (18). Protective roller blind (2) according to claim 2, characterized in that the compensation device (11) has a stationary element (14) with a spiral spring (22) and the winding shaft (9) has an element (14) which can be moved horizontally with respect to the stationary element (14). 17) with a thread-like surface or at least one web protruding beyond the surface, the thread-like surface or the web engaging between the spring turns of the spiral spring (22). Protective roller blind (2) according to one of claims 1 to 4, characterized in that a grip strip (5) is arranged on the fabric hanging (8), the grip strip (5) having a first grip strip part (27) connected to the fabric hanging (8) ) and a second grip strip part (28), and the first grip strip part (27) is guided horizontally displaceably in the second grip strip part (28). Protective roller blind (2) according to Claim 5, characterized in that the second grip strip part (28) has guide rollers (33) on which the first grip strip part (27) is mounted. Protective roller blind (2) according to Claim 5, characterized in that the second grip strip part (28) has at least one sliding element on which the first grip strip part (27) is mounted. Method for winding and unwinding a fabric curtain (8) and / or a curtain made of a single or multi-layer plastic film on a winding shaft (9) of a protective roller blind (2), characterized in that during the winding and unwinding of the fabric curtain (8) the winding shaft (9) is adjusted horizontally. A method for winding and unwinding a fabric hanging (8) on a winding shaft (9) of a protective roller blind (2), a handle strip (5) being arranged on the fabric hanging (8), characterized in that a handle strip (5) is used which has a first grip strip part (27) connected to the fabric hanging (8) and a second grip strip part (28), and that during the winding and unwinding of the fabric hanging (8) the first grip strip part (27) in the horizontal direction relative to the second grip strip part ( 28) is adjusted.

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