EP3401496B1 - Guide rail for a sun protection device and corresponding sun protection device - Google Patents

Description

According to the preamble of claim 1, the invention relates to a guide rail for a sun protection system with a carrier profile, the carrier profile having, in addition to a guide cross-section, at least one receptacle with a functional element arranged therein. The subject of the present invention is also a sun protection system with at least one such guide rail.

For example, it is from the EP 2 357 310 A2 known to provide the guide rail of a sun protection system with receptacles for additional functional elements. It is known from a guide rail shown there to provide a second guide chamber for guiding an insect or pollen screen or also a receptacle for a balustrade element. The massive guide rail with the deep opening cross-sections makes it more difficult to assemble functional elements that extend over the entire width of the system. There is also the disadvantage that such guide rails themselves are not insignificant Have width and cover a correspondingly large area of a window opening. There may also be competition for space when attaching the individual components during assembly.

To simplify the assembly of so-called ZIP guides for corresponding sun protection systems, it is known to make the guide rail divided in the area of the guide cross-sections, as in FIG EP 1 669537 B1 or the EP 2 157 275 A2 is shown. The sole purpose of this is to simplify access to the undercut area of the guide cross-section and to be able to insert the guided elements into the undercut area even when the guide rail is already installed. Additional functional elements cannot be held on these guide rails.

Another example of a ZIP system is from the US 2016/0319593 A1 known.

The object of the present invention is to improve a guide rail of the type mentioned at the outset in such a way that a simplified work sequence that is repeated regardless of the type of functional elements is obtained.

The main features of the invention are specified in the characterizing part of claim 1. Refinements are the subject matter of claims 2 to 12. The present invention also relates to a sun protection system specified in claim 13 and a facade / window construction specified in claim 17 with corresponding guide rails. Refinements of the sun protection system are specified in claims 14 to 16.

According to the invention, a guide rail of the type mentioned is designed in such a way that the at least one receptacle is formed between a profile leg arranged on the carrier profile and a terminal strip, the terminal strip against a by means of a pretensioned elastic holding element which is arranged between the functional element and the terminal strip Stop is preloaded, wherein a bearing point is preferably provided between the terminal strip and the support profile, which defines a direction of movement of the terminal strip away from the stop in the direction of the functional element.

The guide rail according to the invention offers the advantage that the functional element can simply be inserted into the still open receptacle after the guide rail has been installed, for example on a facade element, a wall, or a window or door frame, regardless of its design. Then according to the preferred embodiment Terminal strip inserted and moved against the stop and finally clamped by pressing the elastic retaining element into the gap between the terminal strip and the functional element under bias. As a result, the retaining element, which is prestressed after assembly, secures the terminal strip against loosening without further form-fitting fastening elements.

This assembly sequence is independent of the type of functional elements involved. In this way, guide rail elements to be mounted on both guide rails of a sun protection system can be used to guide an additional curtain, e.g. a roll-out insect screen or light strips can be installed in the same way as functional elements extending over the entire width of the system, e.g. Insect protection frames, fall protection in the form of glass panes or railings or burglar protection grids.

The terminal strip, initially formed separately from the guide rail, also has the advantage that the functional element, in the event that it is arranged over the entire width between the guide rails, can be made wider and can extend to the bottom of the holding receptacle. Installation is still possible without any problems thanks to the terminal strip attached at a later date.

In a preferred development of the invention it is provided that the bearing point is designed as a hinge point which defines a pivot axis about which the terminal strip can be pivoted against the stop during assembly.

This design offers the advantage that it can be mounted particularly well and still offers a very good and secure hold in the clamped position.

It is also preferably provided that a gap is provided between the terminal strip and the functional element located in the assembly position, which gap enables the terminal strip to be inserted into the bearing point if the retaining element is missing. This gap makes it possible, with the functional element already in position, to hang the terminal strip and pivot it into the end position before the elastic holding element is pressed into the gap released by the pivoting for final jamming. This assembly can also be carried out by a fitter alone without difficulties and additional special aids to hold the parts in position.

As an alternative to the terminal strip pretensioned against the stop under the clamping force of the holding element, the stop can also be formed by one or more fastening elements which hold the terminal strip in a position pretensioning the holding element.
A different assembly sequence can also result here, in that the elastic holding element is first placed on the functional element and, if necessary, pre-fixed, before the terminal strip is then shifted into its position prestressing the holding element by means of the fastening elements. For this purpose, screws are particularly suitable as fastening elements

It can be advantageous if the width of the gap decreases towards the bearing point, because the holding element is then compressed more strongly when it is pushed deeper into the gap and too deep a depression can be prevented.

Yet another embodiment of the invention provides that the strength of the terminal strip increases towards the bearing point. In this way, the gap tapering towards the carrier profile can be implemented, the increase also being provided independently of this to increase the bending stiffness, since the bending moments towards the bearing point also increase according to the point of application of the clamping force through the holding element.

The at least one elastic holding element is preferably made of rubber, and embodiments made of suitable plastics can also be provided.

In addition to the option of pressing several elastic holding elements spaced apart or directly adjoining one another into the gap, a particularly preferred embodiment of the invention provides that the elastic holding element is designed as a bar extending over the length of the terminal strip. This results in an optimal clamping force that acts evenly over the entire length of the functional element.

Another preferred embodiment of the invention can provide that the terminal strip has projections and / or recesses on the side facing the functional element. As a result, the holding element is additionally secured against slipping out of the gap, with a particularly good securing result if, furthermore, preferably the at least one elastic holding element on its side facing the terminal strip with at least part of its projections and / or recesses and corresponding ribs / or has depressions.

Regardless of the formation of corresponding projections / depressions between the terminal strip and the holding element, it can be advantageous that the at least one elastic Retaining element has barbs that build up increased pull-out forces. These can also interact with a smooth surface of a functional element to be mounted, for example with a glass surface.
Alternatively, the at least one elastic retaining element can also be designed as a spring element made of plastic or metal, for example as a spring clip, the legs of which are clamped between the functional element and the terminal strip by simply pushing such a spring clip into the gap located there.

In a particularly preferred embodiment of the invention it is provided that the guide rail have bores for mounting on a substrate, which are covered by the functional element in the mounted state. This arrangement, in which the bores e.g. are arranged directly in the profile leg that forms part of the receptacle, a guide rail can be implemented in which no fastening elements are visible after assembly. The accessibility of the fastening elements for mounting on a sub-floor is also possible without any problems, since the terminal strip is not even mounted on the sub-base when the guide rail is installed.

As already mentioned, the functional elements can be made completely different. Thus, the functional element can be a first guide rail insert or a light strip, to name two functional elements that are fixed to only one guide rail or its support profile.

The guide cross-section of the guide rail means that it can be formed directly in the carrier profile, but it is also possible that the guide cross-section for the sun protection system is formed by a second guide rail insert that sits in a holder in the carrier profile. With this embodiment, an identical carrier profile can be used for different types of sun protection systems through the use of appropriately designed guide rail inserts

In particular with the concealed arrangement of the fastening elements, it is advisable for the receptacle for the functional element to be arranged between the guide cross-section and the building side of the guide rail.

In the case of functional elements that do not extend over the entire height of the guide rail, it is possible to arrange two or more functional elements in the receptacle. For example, a light strip can be arranged above a fall protection in the receptacle formed over the entire height of the guide rail. It is also possible not to use the functional element to cover the used area by a further functional element, for example to cover a groove arranged in the carrier profile for fixing the terminal strip. Since the cross section of the receptacle is generally unchanged in the unused area, a guide rail insert rotated by 180 ° can also be used for this purpose, the base of which then closes the receptacle towards the outside.

In yet another preferred embodiment of the invention it is provided that two or more fastening or bearing points are provided for the terminal strip, each of which has a different distance from the profile strip.

This embodiment of the invention makes it possible, with the aid of a single pair of guide rail and terminal strip, to fix functional elements of different strengths in the receptacle, e.g. Fall protection made of glass with different glass thicknesses without having to select other parts beforehand. For this purpose, the terminal strip is simply fixed to the appropriate fastening or bearing point during assembly. The corresponding elements can be formed on the terminal strip itself or on the support profile.

In summary, the receptacle between the terminal strip and the profiled strip can be adapted to different thicknesses and shapes of the functional element by means of variable fastening or bearing points, by adapted profiled strips and / or by elastic retaining elements adapted in thickness and / or shape.

The present invention also relates to a sun protection system with two lateral guide rails, at least one of which corresponds to a previously described embodiment of a guide rail in order to achieve the advantages explained. It may be sufficient if only one of the two guide rails is designed according to the invention in order to achieve a significant assembly advantage, because when the terminal strip of the guide rail according to the invention is removed, a continuous functional element can be inserted into a conventional guide rail on the opposite side and then fixed by the terminal strip. However, the two-sided arrangement of guide rails according to the invention is to be preferred, in particular if additional continuous functional elements are provided. Basically, the sun protection system can be designed in various ways, e.g. as a blind or external venetian blind with a guided slat curtain, as a window awning or roller shutter or as a ZIP sun protection system in which the curtain is laterally guided in the two guide cross-sections like a zip over its entire length.

It is thus also easily possible for the functional element to extend over the entire width of the sun protection system and to be clamped on both sides in the receptacles of the guide rails.
The sun protection systems with at least one guide rail according to the invention can also be designed so that at least one functional element is provided, which is held on one side in a receptacle of a guide rail according to one of claims 1 to 12 and on its other side by a support rail that is spaced apart to the second guide rail of the sun protection system.

In these embodiments, a functional element does not extend over the entire width of the system between the two guide rails but, for example, only over one of several window elements that are covered by the sun protection system. The side of the functional element that is not held in a receptacle of a guide rail according to the invention, which is designed, for example, as a fall protection in front of a floor-to-ceiling, openable window, can then be fixed in a support rail, which essentially consists of a combination of a profile strip and a terminal strip, which the functional element clamp with an intermediate elastic retaining element.

The functional element can only extend over part of the height of the guide rails and then be designed as a fall protection in the form of a glass pane or a railing, but it is also possible that the functional element extends over the entire height of the guide rails and then the functional element e.g. is designed as an insect protection frame or as a window grille. In this case, further functional elements can be arranged above the functional elements, e.g. Light strips or panels.

Finally, the present invention also deals with the use of the guide rails according to the invention in a facade or window construction with several window elements arranged next to one another, each bounded by frame elements, with guide rails of a sun protection system being provided on the two outermost frame elements. Characterized in that at least one of the two guide rails is designed according to one of Claims 1 to 12, functional elements arranged between the guide rails and / or functional elements only extending over the width of a window element being provided, which are held on a support rail on at least one side, it becomes possible to individually adapt the facade or window front depending on the nature of the individual window elements. For example, fall protection devices can also be specifically arranged only in front of floor-to-ceiling windows that can be opened, whereby they are attached to the middle Frame elements are fastened between two window elements via support rails, which have already been addressed above. The support rails can hold functional elements on one or both sides.

Fig. 1

einen Querschnitt einer ein Trägerprofil und einen Führungsschieneneinsatz aufweisenden Führungsschiene in einem ersten Montageschritt;

Fig. 2

einen Querschnitt der Führungsschiene gemäß Fig. 1 nach der Montage auf einem Fensterrahmen mit einem noch zu montierenden Funktionselement;

Fig. 3

einen Querschnitt der Führungsschiene zur Veranschaulichung der Montage des Funktionselements;

Fig. 4 bis 9

Querschnitte von Ausführungsbeispielen von Führungsschienen mit verschiedenen Funktionselementen;

Fig. 10 bis 16

schematische Ansichten von Ausführungsformen erfindungsgemäßer Sonnenschutzanlagen an Fassaden;

Fig. 17

einen Teillängsschnitt der Sonnenschutzanlage/Fassadenkonstruktion nach Fig. 16

Further features, details and advantages of the invention emerge from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

Fig. 1

a cross section of a guide rail having a support profile and a guide rail insert in a first assembly step;

Fig. 2

a cross section of the guide rail according to Fig. 1 after assembly on a window frame with a functional element still to be assembled;

Fig. 3

a cross section of the guide rail to illustrate the assembly of the functional element;

Figures 4 to 9

Cross-sections of exemplary embodiments of guide rails with various functional elements;

Figures 10 to 16

schematic views of embodiments of sun protection systems according to the invention on facades;

Fig. 17

a partial longitudinal section of the sun protection system / facade construction Fig. 16

Fig. 1 shows a cross section of a guide rail 10, which has a support profile 12 and a guide rail insert 16 with a guide cross section 18 inserted into a holding receptacle 14. The guide rail cross-section 18 is designed here for guiding guide nipples 22 attached to the sides of slats 20 of an external venetian blind (not shown in detail), but in principle, through a suitable choice of a guide rail insert with a corresponding guide cross-section, the curtain of a roller shutter, a window awning or a sun protection system can also be used be guided in the guide rail according to the ZIP principle.

The support profile 12 is shown in FIG Fig. 1 has already been placed on an assembly substrate 24, the substrate 24 here being a facade element or a window frame, but the mountability is not limited to such a substrate. The carrier profile 12 is designed as an extruded profile and, in the exemplary embodiment shown, has three successive chambers, the chamber furthest away from the substrate 24 having already been described as the holding receptacle 14. The other two chambers 26, 28 have no particular invention-related Function, but ensure the required stability and the spatial arrangement required here. A profile leg or profile strip 30, which is designed to be considerably wider than the chambers 26, 28 of the support profile 12, is provided for resting on the substrate 24. This serves, on the one hand, to form a large contact surface for secure mounting on the substrate 24, but the profile leg 30 also forms a flank of a receptacle 32 for an additional functional element 34, which will be discussed in more detail later. The profile leg for forming the receptacle 32 does not necessarily have to form the support surface for the carrier profile 12 at the same time.

In the profile leg 30, several bores 36 are provided over the length of the carrier profile 12, through which the carrier profile 12 can be mounted on the substrate 24 with the aid of fastening screws 38. Edges 40 of the bores 36 are countersunk, so that when the countersunk screws 38 shown are used, they can be countersunk in alignment with the surface 42 of the profile leg 30 in the region of the receptacle 32.

Fig. 2 shows a subsequent assembly step in which, after the assembly of the carrier profile 12 on the substrate 24, the functional element 34 is placed on the top side 42 of the profile leg 30. The countersunk heads of the countersunk head screws 38 are covered. The functional element 34 is here a guide rail insert for an insect screen (not shown).

In the next step, which is in Fig. 3 is illustrated, a terminal strip 44, which has a hook-like cross-section, is now inserted with a first leg 46 into a groove 48 formed in the carrier profile 12, so that a hinge point is formed, and then pivoted (counterclockwise in the sense of the illustration), until a second leg 50 of the terminal strip 44 rests against a stop 52. This stop is formed set back in the carrier profile 12 so that the second leg 50 is arranged sunk in the inside of the carrier profile 12. A gap 54 initially remains between the terminal strip 44 and the functional element 34.

For the final clamping of the functional element 34, an elastic holding element 56 made of rubber is pressed into the gap. Further fastening measures are not required. The clamping force is built up over the entire length of the functional element 34.

The elastic holding element 56 is designed like a strip, but it is profiled in such a way that barbs are formed on its side facing the functional element 34. These strive to stand up when the holding element 56 moves out of the gap 54, so that the holding force increases and the movement out of the gap 54 is impeded.

On the side facing the terminal strip 44, the holding element 56 is designed with a rib 58 and a groove-like recess 60, the rib 58 being intended to snap into a groove-like recess 62 in the terminal strip 44, while a rib-like projection 64 on the terminal strip 44 in the assembled end position is in the recess 60. The corresponding elements define an exact position of the holding element 56 in the end position, since imprecise positioning at this point can be visually very disruptive. In addition, the aforementioned elements in turn make it more difficult to move the holding element 56 out of the gap 54.

In Figures 4 to 9 A few variants of different functional elements are now briefly presented, the already described guide rail insert 16 with the guide nipples 22 of the slats 20 of a venetian blind each remaining unchanged. Nevertheless, with all variants of functional elements, another sun protection system with its curtain could also be guided in suitable guide rail inserts, such as a roller shutter, an awning, a roller blind or the like.

In Fig. 4 Figure 13 is a cross section of a guide rail according to Figs. 1 to 3 shown after the assembly of the sun protection system, the functional element 34, as already discussed, being a guide rail insert for an insect screen.

In Fig. 5 a frame element 134 is inserted as a functional element in the receptacle 32 defined by the terminal strip 44 and the profile leg 30, to which an insect screen fixed frame 135 can be attached in a known manner with the aid of locking pins 137. The frame element 134 always remains in the receptacle 32, while the insect screen fixed frame can be removed by removing the pins 137. As can be seen from the cross section of the frame element 134, this is a guide rail insert 34 rotated by 180 °, as is the case with the FIG Fig. 4 The embodiment shown is used as a functional element. Only the base has to have corresponding perforations for the locking pins 137, but also its use as a guide rail insert do not influence, so that they can basically always be present for different uses.

It should also be mentioned the possibility of simply covering the receptacle by means of guide rail inserts rotated by 180 ° or simple C-profiles, the only function of the functional elements then being to cover otherwise visible fastening elements.

In Fig. 6 the guide rail 10 is provided directly with a glass pane 234 as a functional element in the receptacle 32. The holding element 256 made of rubber is here configured somewhat differently in cross section and has inner cavities 257 to improve the elasticity. Deviating from the previously described embodiments, an elastic glass support 259 is also arranged between the glass pane 234 and the profile leg 30, which serves to protect the glass pane 234 from direct contact with the profile leg 30. The second elastic element 259 is fixed in the receptacle 32 in an opening 31 provided for this purpose in the profile leg 30 before the glass pane 234 is placed.
The glass pane 234 extends only over part of the height of the guide rail 10 and is anchored mirror-symmetrically on both sides in the same way. It serves as a fall protection. As an example, the terminal strip 244 is shortened only over the height of the glass pane 234, corresponding to the holding element 256. In the case of a longer holding element and a longer terminal strip, the receptacle 32 can then accommodate a panel for covering or another functional element, e.g. B. a light bar.

Fig. 7 shows a further fall protection in the form of a railing 334, which is fixed here as a functional element in the receptacles 32 of the two guide rails 10. The holding element 256 corresponds to that in FIG Fig. 6 shown holding element for clamping the glass pane 234 provided there, since the railing 334 also extends only over part of the height of the guide rail 10. However, the second elastic holding element can be omitted here because the hollow frame element of the railing is insensitive to direct contact with the profile leg 30.

Fig. 8 shows the anchoring of a burglar-proof window grille 434 as a functional element, which is anchored in the receptacles 32 of the two guide rails 10. In cross-section, the attachment corresponds to the attachment of the fall-proof railing 334 from FIG Fig. 7 , however, here the window grille 434 and accordingly also the terminal strip 44 and the holding element 456 are formed over the entire length of the guide rail.

Furthermore shows Fig. 9 yet another completely different type of functional element 534, which is designed as a light strip. Here, a frame part 535 is in the receptacle 32 in an Figs. 1 to 5 Set in the manner shown, wherein in the frame part in a holder 537 an LED light strip 539 is received. The electrical connection (not shown) can be made through a hole in the profile leg and the window frame.

Figures 10 to 13 show sun protection systems 100 which, for example, can be designed as roller blinds, roller shutters or even external venetian blinds, among others. The plants can, for example, accordingly Fig. 6 be designed and have the lateral guide rails 10 shown there, the slats 20 of an external venetian blind as a sun protection system 100 being guided with their guide nipples 22 in the guide inserts 16. The guide rails 10 are designed mirror-symmetrically to each other on both sides of the window and hold a glass pane 234 between them as a fall protection in their receptacles. For the sun protection systems 100 after Figures 10 to 13 these cover with their fall protection only one floor-level window element 102 that can be opened. Adjacent window elements 104, 106 are either not designed to be floor-level or cannot be opened, so that a fall protection can be omitted.

In order to allow a number of adjacent floor-to-ceiling windows 102, 106 to be shaded, some of which require fall protection, variants are possible that are shown in FIG Figs. 14 to 16 are shown. Here, the sun protection systems 1000 are designed in such a way that they extend over a plurality of window elements 102, 106. The guide rails are correspondingly arranged on the flanks of the outermost window elements and, for example, connected to the frame elements arranged there as a mounting base. The in Figures 14 and 16 the guide rail 10 can only be formed on one side in a manner discussed above, while on the other side the use of a conventional guide rail 108 without receptacles for additional functional elements is possible because no fall protection is required on the window element 106 provided there. However, if other functional elements are desired, the guide rail there can of course also have the proposed innovations.

Simplified support rails 610 fixed to the frame elements are provided between the guide rails and can also be designed as double-sided support rails 611, as in FIG Figures 15 and 16 shown when they are to hold glass elements 234 as fall protection on both sides.

The support rails 610, 611 are in Fig. 17 explained in more detail, the facade shown there in section with the sun protection system 1000 according to the embodiment Fig. 16 corresponds. The guide rail 108 on the system side without fall protection is not shown for the sake of simplicity. Frame elements 624, 625 of the facade, which are arranged between the window elements 102, 106 and on their edges, serve as the mounting base 24. The guide rail 10 at the edge corresponds in the essential points to the guide rail 10 according to FIG Fig. 6 and is therefore not explained further.

The support rails 610, 611 each have a facade-side profile strip 630, 631 and clamping strips 644 for clamping the glass elements 234 shown here as fall protection, so that the clamping takes place in a functionally similar manner to the previously described guide rails 10 with their profile strips 30 and clamping strips 44 . Here, too, the clamping force is built up by elastic holding elements 256 and glass supports 259, which are correspondingly deformed during assembly. For mounting glass elements 234, 634 on both sides, the two-sided support rail 611 has a profile strip 631 on both sides provided as a glass support, while the terminal strips 644 used for both types of support strips are the same here. But this is not absolutely necessary.

As a special feature, the support rails 610, 611 each have two bearing points 660, which are designed here as grooves on the clamping strips 644 as an example. These make it possible to mount the clamping strips 644 at different distances from the profile strips 630, 631 in order to be able to mount different glass thicknesses without having to use other parts. This multiple formation of bearing points can also be transferred in the same way to the guide rails, which are then designed in the area of the terminal strips in accordance with the support rails 610, 611. <b> List of reference symbols </b> 10 Guide rails 106 Window element (floor level) 12 Support profile 108 Guide rails 14th Holding fixture 134 Frame / functional element 16 Guide rail insert 135 Fixed insect screen frame 18th Guide rail cross-section 234 Glass pane / functional element 20th Slats 244 Terminal block 22nd Guide nipple 256 elastic retaining element 24 Mounting base 257 Cavities 26, 28 Chambers 259 elastic glass support 30th Profile leg / profile strip 334 Railing / functional element 31 Opening in the profile leg 434 Window grille / functional element 32 admission 456 Retaining element 34 Functional element 534 Functional element 36 Drilling 535 Frame part 38 Countersunk screws 537 bracket 40 Hole edges 539 Light bar 42 Top of the profile leg 610 Support rails 44 Terminal block 611 Support rails 46 first leg 624 Frame elements 48 Groove 625 Frame elements 50 second leg 630 Profile strip 52 attack 631 Profile strip 54 gap 644 Terminal block 55 Barbs 660 Storage locations 56 elastic retaining element 1000 Sun protection system 58 rib 60 deepening 62 Recess 64 head Start 100 Sun protection system 102 Window element (floor level) 104 Window element

Claims (17)

1. Guide rail (10) for a sun protection device, having a carrier profile (12), wherein the carrier profile (12), in addition to a guide cross-section (18), has at least one receptacle (32) for a functional element (34; 134; 234; 334; 434; 534; 634) arranged therein, wherein the at least one receptacle (32) is formed between a profile leg (30) arranged on the carrier profile (12) and a clamping strip (44; 244) mounted on the carrier profile (12), characterised in that the clamping strip (44; 244) is preloaded against a stop (52) by means of a prestressed elastic holding element (56; 256; 456), which is arranged between the functional element (34; 134; 234; 334; 434; 534; 634) and the clamping strip (44; 244).
2. Guide rail according to claim 1, characterised in that at least one bearing point is provided between the clamping strip (44; 244) and the carrier profile (12), which bearing point defines a direction of movement of the clamping strip (44; 244) away from the stop in the direction of the functional element (34; 134; 234; 334; 434; 534), wherein the bearing point is preferably designed as an articulation point which defines a pivot axis about which the clamping strip (44; 244) can be pivoted against the stop (52) during assembly.
3. Guide rail according to claim 1 or 2, characterised in that a gap (54) is provided between the clamping strip (44; 244) and the functional element (34; 134; 234; 334; 434; 534) located in the assembly position, which gap allows the clamping strip (44; 244) to be inserted into the bearing point when the elastic holding element (56; 256; 456) is missing.
4. Guide rail according to claim 1, characterised in that the stop (52) of the clamping strip (44; 244) is formed by one or more fastening elements by which the clamping strip is held in a position prestressing the elastic holding element (56; 256; 456).
5. Guide rail according to any of the preceding claims, characterised in that the elastic holding element (56; 256; 456) is designed as a strip which extends over the length of the clamping strip (44; 244).
6. Guide rail according to any of the preceding claims, characterised in that, on the side facing the functional element (34; 134; 234; 334; 434; 534), the clamping strip (44; 244) has projections (64) and/or recesses (62), wherein preferably the at least one elastic holding element (56; 256; 456), on its side facing the clamping strip (44; 244), has ribs (58) and/or depressions (60) corresponding with at least a portion of the projections (64) and/or recesses(62)thereof.
7. Guide rail according to any of the preceding claims, characterised in that the at least one elastic holding element (56; 256; 456) has barbs (55) which build up increased pull-out forces.
8. Guide rail according to any of the preceding claims, characterised in that the guide cross-section (18) for the sun protection device is formed by a second guide rail insert (16) which is seated in a holding receptacle (14) in the carrier profile (12).
9. Guide rail according to any of the preceding claims, characterised in that the receptacle (32) for the functional element (34; 134; 234; 334; 434; 534) is arranged between the guide cross-section (18) and the building side of the guide rail (10).
10. Guide rail according to any of the preceding claims, characterised in that at least two functional elements formed separately from one another are arranged in the receptacle (32).
11. Guide rail according to any of the preceding claims, characterised in that two or more fastening or bearing points (660) are provided for the clamping strip (44; 244), which each have a different distance from profile strips (630, 631)
12. Guide rail according to any of the preceding claims, characterised in that the guide rail (10) has bores (36) for assembly on a base (24), which bores are covered in the assembled state by the functional element (34; 134; 234; 334; 434; 534; 634).
13. Sun protection device having two lateral guide rails (10), at least one of which is designed according to any of the preceding claims, wherein at least one functional element (34; 134; 234; 334; 434; 534; 634) is arranged in the receptacle of this guide rail.
14. Sun protection device according to claim 13, characterised in that the functional element (34; 134; 234; 334; 434; 534) extends over the entire width of the sun protection device and is clamped on both sides in the receptacles (32) of the guide rails (10) according to any of claims 1 to 12.
15. Sun protection device according to claim 13, characterised in that at least one functional element is provided which is held on one side in a receptacle of a guide rail (10) according to any of claims 1 to 12 and on its other side by a support rail (610, 611), which lies at a distance from the second guide rail (108) of the sun protection device.
16. Sun protection device according to any of claims 13 to 15, characterised in that the functional element is designed as fall protection in the form of a glass pane (234, 634) or a railing (334), wherein, in the case of a glass pane (234), a further elastic element (259) is also arranged between the glass pane (234) and the profile leg (30).
17. Facade structure or window structure, having a plurality of window elements (102, 104, 106) arranged next to one another, each of which is delimited by frame elements (624, 625), wherein guide rails (10, 108) of a sun protection device (100; 1000) are provided on the two outermost frame elements (625), characterised in that at least one of the two guide rails (10) is designed according to any of claims 1 to 12, wherein functional elements arranged between the guide rails (10, 108) and/or functional elements extending only over the width of a window element (102) are provided, which are held on at least one side on a support rail (610, 611).

Images