WO2017109165A1

WO2017109165A1 - Sun protection system

Info

Publication number: WO2017109165A1
Application number: PCT/EP2016/082542
Authority: WO
Inventors: Martin Meermeier; Ludger GEROLD
Original assignee: Heroal - Johann Henkenjohann Gmbh & Co. Kg
Priority date: 2015-12-23
Filing date: 2016-12-23
Publication date: 2017-06-29
Also published as: DE102015122723A1

Abstract

The invention relates to a sun protection system, in particular for use in a window or door jamb, comprising a plurality of horizontally arranged lamellae (4) which are compactly stacked in a retracted state and which completely cover the window or door opening in the extended state. The inclination of the lamellae (4) can be adjusted, and at least one drive is provided for a vertical movement and for adjusting the inclination. The aim of the invention is to allow a simple and reliable operation of the sun protection system with a compact design and in particular to also allow the use of the sun protection system under a strong wind load. This is achieved in that each lamella (4) has two mutually spaced cams (16, 17) at the end faces of the lamella, said cams being vertically movable in guide rails (9, 15). The guide rails (9, 15) are designed to be movable towards each other and away from each other in order to adjust the inclination, and two adjacent lamellae (4) are connected together by means of chain links (19).

Description

Sun protection system

The invention relates to a sunshade system, in particular for use in a window or door reveal, with a plurality of horizontally arranged slats, which are compactly stacked in the retracted state and fully cover the window or door opening in the extended state, the slats are adjustable in their inclination and wherein at least one drive for vertical movement and tilt adjustment is provided.

Sun protection systems with mechanically movable and adjustable slats are known in various designs from the prior art. They can be used both inside and outside, with, especially in commercially used real estate, arranged on the outside of the facades sun protection systems more and more prevail. A known sun protection system is known from DE 197 27 379 AI. It relates to a sunshade system with horizontal slats which retracted form a gathered package and are extended by means of support elements in a predetermined distance from the respective overlying slat operated by a turning device. It is already known to use a motor drive for adjusting both the slat inclination and the vertical adjustment.

A disadvantage of this known system is that the slats are connected to each other by means of support elements, but in the outer rails are alternately guided only on one side and then only via a guide pin in laterally extending guide rails. This configuration is particularly problematic in the increasingly occurring in recent years high wind weather conditions, as disturbances in the operation or even damage to the entire system can not be excluded. Based on this, the invention has the object, the above-mentioned and previously described in detail known sunscreen system to design and refine that it is a lightweight and reliable in a compact design

Operation allowed and especially in strong wind conditions

Reliable use. Furthermore, it is desirable that the sun protection system can be installed in a simple manner even in existing facades in the door or window reveals located there. This object is achieved in a sunshade system with all the features of the preamble of claim 1, characterized in that each lamella has at its ends in each case two spaced-apart cams, which in

Guide rails are vertically movable, that the guide rails for

Adjustment of the inclination towards each other and away from each other are designed to be movable and that two adjacent lamellae are interconnected by means of chain links.

The fact that each lamella is guided at four end points by means of cams in guide rails, on the one hand results in a very accurate adjustment of the slats and on the other hand a good guide, even with mechanical stresses such as strong wind. The connection of the individual slats with each other by means of chain links ensures a robust yet space-saving arrangement of the adjusting elements outside the field of view. According to a further teaching of the invention, two guide rails are present at each end of the slats, of which one is designed as a rigid guide rail and the other guide rail is movable. Since it depends on the relative movements of the two respective guide rails for the adjustment of the inclination of the slats, would also be two movable

Guide rails conceivable, the effort for this, however, is constructively clear consuming and would therefore go hand in hand with increased maintenance and greater susceptibility to interference.

Both guide rails are preferably each in a side frame of the

Sunscreening system arranged and each movable guide rail in the respective side frame in a parallel to the outer wall of the side frame extending plane positively guided. It is particularly expedient if each movable guide rail is an integral part of a slide forcibly guided in the side frame. In this way, a reliable, yet very compact arrangement and adjustment of the movable guide rails can be achieved.

A further embodiment of the invention provides that each movable

Guide rail with at least one tension spring in the rear area with the

Side frame is connected and that the springs are open when

Slat adjustment are in their rest position. The tension springs used in this way support the opening process of the slats, in which the two

Guide rails are relatively removed from each other. In the open position, the tension springs are not loaded, so that a long life of the tension springs is ensured due to the usually longer period of the open state of a sunshade system according to the invention.

A further advantageous embodiment of the invention provides that the slats are mutually supported in their closed position by means of respective corresponding holding elements on their longitudinal edges.

According to a further teaching of the invention, two hingedly interconnected chain pieces are provided as chain links between two adjacent lamellae, and each chain formed therefrom is guided in the respective rigid guide rail. In addition to a compact design, such a solution has the further advantage that the lamellae can not be mechanically displaced relative to one another in the open or partially inclined position. Another preferred embodiment of the invention provides that in the retracted state, all the slats are stacked in the upper part of the sun protection system, wherein the chain pieces leak from the guide rail and are folded. Through this constructive solution, the required stability of the guide is maintained in the region of the opening of the sunshade system, in which the chain pieces leave the guide only in the upper region immediately before the folding of the slats.

Preferably, all guide rails on guide inserts. The guide inserts can be provided with sealing and / or damping lips or be designed as such and serve to reduce noise and to reduce the game of guided in the guide rails construction parts.

A first preferred embodiment of the invention is that below the lowest lamella, a cross member is provided, which is designed as a housing for at least one drive. With this configuration, the existing above the clear opening space in which the slats folded flat as a package can be moved together, are kept as small as possible. The drive, which can be used both for height adjustment and for adjusting the inclination, is arranged within the traverse and moves with the vertical adjustment.

Preferably, two drive motors are provided for the drive in the traverse, each of which is supplied by a guided in the side frame cable and, if necessary

be controlled. The cable can be used as a supply cable and / or

Data cable be formed. By means of a pendulum weight can be a

Forced guidance of the cable within a corresponding channel in the side frame reach, so that the movable arrangement of the electric motor drives is ensured in a movable element by a reliable supply of voltage or data.

According to a further teaching of the invention, each drive for vertical movement of the slats on a arranged in the side frame rack or a toothed belt tooth profile engaging drive pinion. Conveniently, however, two drive motors are provided at the ends of the traverse, which are preferably designed as a DC geared motor and synchronized by means of a donor system. Such a donor system may have Hall sensors, for example. This can be achieved in addition to the synchronization and a slow start according to a predetermined ramp profile and a fine setting. In this way, despite the use of two Monormen in a compact design an optimally uniform vertical adjustment of the slats can be achieved. Another preferred embodiment according to a second embodiment provides that above the slats a driven by a drive shaft is provided, which serves for vertical movement of the slats by vertical movement of a traverse at the lower end of the slats. In this embodiment variant, the vertically movable traverse is thus not made by drives in the interior of the traverse but by drives in the upper housing of the sunshade system. This has the advantage of being on a separate power supply and

Control line can be dispensed to movable Traverse.

Another preferred embodiment of the aforementioned variant provides that at both ends of the driven shaft in each case a roller is arranged, on each of which a tape is rolled, at the lower end of the movable cross-member is attached. As a material for such a band is textile tape, in general

Language also known as'Texband 'for short. A further embodiment of the invention provides that the traverse has at each end in each case a free-rotating pinion, which in one in the side frame arranged rack or a toothed belt tooth profile engages. As a result, as in the first alternative, an optimally uniform vertical adjustment of the slats can be achieved. Another particular embodiment of both previously described preferred embodiments of the invention is that for adjusting the inclination of the slats, the movable guide rail by means of a in the end faces of

Traverse trained slide guide for changing their distance to the rigid guide rail is movable. Preferably, each link guide on a circular segment-shaped slot and a correspondingly shaped sliding block. In this way, by means of a corresponding transmission, the drive can be used simultaneously during the vertical process for adjusting the inclination of the slats. Finally, it is of particular advantage that the gear used

Slip clutch has, which comes in the respective end position of the sliding block in the slot used and so each time a change in the vertical erection moves an opening or closing movement. Due to the compact design of the sunshade system according to the invention as a separate and thus easily prefabricated unit, the system is suitable

especially for the retrofitting of existing windows or

Door openings with rectangular cross section. The invention will be described below with reference to an only preferred

Exemplary embodiments illustrative drawing explained in more detail. In the drawing, a first embodiment of a sunscreen system according to the invention with closed lamellae in perspective view, the system of Fig. 1 without the left front side frame, the system of Figs. 1 and 2A in partially cut

Side view, a sun protection system according to the invention with partially opened slats in a perspective view, the system of FIG. 3A in a partially sectioned side view, a sun protection system according to the invention with still further open slats in a perspective view, the system of FIG. 4A in a partially sectioned side view, an inventive sun protection system in fully open position in perspective view, the system of FIG. 5A in a partially sectioned side view, an enlargement of the upper portion of the system according to the invention in a partially sectioned side view, a side frame of the system according to the invention in the open position in horizontal section, a side frame of the system according to the invention in a closed Position in horizontal section, the subject of FIG. 7A with illustrated drive system, the subject matter of Fig. 7B with illustrated drive system, the arrangement of the gears required for the drive in a schematic side view, a further embodiment of an inventive

Shade system according to the invention with closed louvers in perspective view, the system of Fig. 10 without the left front side frame, the system of Figs. 10 and IIA in partially cut

Side view, a side frame of the second embodiment in the open position in horizontal section and the side frame of Fig. 12A in the closed position in horizontal section.

A first preferred embodiment of the invention

Sunscreening system is shown in perspective in Fig. 1 in the closed state. It can be seen from the start the compact design, which makes it possible to prefabricate such sun protection system in any dimensions and so in particular to use for retrofitting already stationary buildings.

On a windowsill 1, two side frames 2A and 2B are attached on both sides, which in turn are overlapped by a cover hood 3 spanning the entire component. One recognizes a plurality of lamellae 4, which, as mentioned, are in the closed position. Below the slats 4 is a traverse 5, which will be discussed in detail later. Finally, one recognizes in Fig. 1 also in the right side frame 2B a rack 6, which serves for the height adjustment of the cross member 5 and thus the vertical method of the slats 4.

In Fig. 2A, the left side frame has been removed to the previously mentioned

Height adjustment to understand better. From the cross member 5 protrudes provided with a drive pinion 7 drive shaft 8, wherein the gears of the drive pinion 7 mesh with the teeth of the rack 6. It also recognizes the back of the movable guide rail 9, which has at its lower rear corner a bearing roller 10 which is supported on a bearing axis 11 and rolls on this. The hidden in the Traverse drive is powered by a cable 12 with energy, the cable 12 may be performed simultaneously as a data cable. The emerging from the cross member 5 cable 12 is first - protected by the (not shown in this illustration) side frame - guided vertically upwards, where it is deflected over two unspecified attached to the side frame rollers and in a (described in detail later) Cable duct over

Pendulum weight 13 is deflected to ensure the reliable power supply for the drive in the movable crosshead 5 without 'cable salad'.

Furthermore, one recognizes two tension springs 14, which are connected at their one end to the movable guide rail 9 and the other end in the rear area of the - removed here - side frame are attached. Their function will also be discussed below. Finally, one also recognizes a rigid guide rail 15, which is connected to the rack 6 in the illustrated preferred embodiment. The design of the rigid guide rail 15 will be discussed further. FIG. 2B clearly shows the position of the movable guide rail 9 and the rigid guide rail 15, in which the actual guidance of the slats 4 takes place. For this purpose, each lamella 4 in the region of its rear end face first cam 16, which are guided in the movable guide rail 9 and moreover, at the front ends of the end faces of the lamellae 4 more cams 17 are present, which are guided in the rigid guide rail 15. About this cam 17 is also the vertical connection of the individual slats 4, by means of two chain pieces 19, which are connected by means of a hinge 20 hinged together and completely within the rigid

Guide rail 15 are guided. The uppermost chain piece 19 ends at the lower cam 17 of the uppermost slat 4.

It can be seen further that between two slats 4 corresponding hook strips 18, 18 'are arranged, which - as known from roller shutter bars for themselves - interlock positively in the closed state to the from the

closed lamellae 4 formed curtain to give greater stability.

Fig. 3A corresponds now substantially to the illustration of Fig. 2A but wherein the cross member 5 is shown a piece of vertical upward movement. The cable 12 is still stretched by the lowered slightly downwards

Pendulum weight 13.

It can also be seen that the movable guide rail 9 has pivoted away in its upper part of the rigid guide rail 15, whereby the uppermost slat shows the slightest inclination and have the underlying slats 4 by the asymmetry of the two guide rails 9 and 15 becoming stronger inclinations. The lower portion of the movable guide rail 9 is still in the initial state, as can be seen on the support roller 10 and the compression spring 14. In Fig. 3B, the previous situation can be seen even better, since now all slats 4 are isolated, but with an upward increasing inclination. It can further be seen that in the rear region of the traverse a circular segment-shaped slot L is arranged, in which a non-descriptive sliding block is guided with a guide cam, wherein the guide cam also engages in the movable guide rail 9 for their adjustment. In this illustration, the holding elements 18 and 18 'of the individual slats 4 can be seen better. 4A now shows that with further movement of the cross member 5 upwards, the lower end of the movable rail 9 has also been removed from the rigid guide rail 15, so that now all the slats 4 have the lowest inclination and move upwards in parallel, as particularly shown in Fig. 4B. There you can also see that both guide rails 9 and 15 are now again arranged parallel to each other, but in the position of the largest possible opening of the slats 4. For this purpose, the guide cam was pivoted in the opposite position to the pivoting operation of the movable guide rail which will be discussed below. In the upper area it can be seen that under the end cap 3 a compact folding of the individual lamellae 4 takes place in that they leave the movable guide rail 9 with their first cam 16 and also the chain pieces 19 arranged between the lamellae 4 are in the upper region of the rigid rail Leave these 15 and folded in such a way that the greatest possible compactness of the package of slats 4 is formed. The respective lowest already folded lamella 4 is guided by means of a further guide rail 22 in the region of the cams 16 and the other end is held by a guide block 21. It can be seen that of the already folded lamellae 4, the lowest hook strip 18 is supported on the support cam 23 and the corresponding hook strip 18 'on the guide block 21st Fig. 5A now shows the sun protection system according to the invention in its fully open position. In this case, all lamellae 4 are shown stacked as a "package" compactly in the upper area below the end cap 3, shown partially broken, which can be seen even more clearly from the side view according to Figure 5B, where only the lowermost link 19 is still in

Operative connection with the drive complex in the traverse 5.

The exact structure of the upper portion of the invention

Sunshade system results from Fig. 6. In this enlarged view, it quickly becomes clear how the guided movement of the top of the guide rails 9 and 15 moved out cam 16 and 17 takes place. First, it can be seen that the two guide rails 9 and 15 have inner guide inserts 24 and 24 '. These serve as sealing or damping elements and have the task of minimizing noise and to minimize the play between the cam 16 and movable guide rail 9 on the one hand and cam 17 and joint pieces 19 and the rigid guide rail 19 on the other.

It can also be seen that a resilient pressure piece, in the illustrated

Embodiment, a spring-loaded ball, for a support of the package of fins 4 in the front (right) area is used, which is pressed when passing the cam 17. On the opposite side (left) can be seen a pawl 26 which is spring-loaded by means of a compression spring 27 and ensures that when descending the slats 4 is a "lock" for the top free cam 16 ', which is designed to run longer than that The cam 16 'extends into the region of the pawl 26, so that it also pivots downward on further downward movement of the cross member 5 against the bias of the compression spring 27 and thus releases from the guide rail 22. In this way the movable guide rail 9 released under tension of the tension spring 14 from its rear position and moves close to the rigid guide rail 15 (in the closed position) zoom. In the embodiment of FIG. 6, a toothed belt profile 6 'is shown instead of the rack previously shown, which does not end in the region of the upper end of the rigid guide rail 15, but also extends around the arched running guide block 21. The upper end of the toothed belt profile 6 'is of a clamping piece 28 which has a slot, not shown, by means of a screw 29 for adjustment in its height frictionally fixed.

Fig. 7A shows the right side frame 2A with the ones inside

Guide rails 9 and 15, but without the guided cam of the lamella, also not shown. While in Fig. 7A, the open slat position is shown, in which the movable guide rail 9 is the farthest distance from the rigid guide rail 15, in Fig. 7B, the closed position is shown, this has the movable guide rail 9, which in the illustrated and in so far Preferred embodiments integral part of

Slider 31 is to which the rigid guide rail 15 moves up. It also recognizes the cross section of existing in the two guide rails 9 and 15 guide inserts 24 and 24 '. Below the carriage 31, the bearing axis 10 are shown with the bearing roller 10 rolling thereon. It is also apparent from FIGS. 7A and 7B how the rack 6 is arranged immediately adjacent to the rigid guide rail 15. In the open position shown in Fig. 7B also the tension spring 14 is shown in the cocked position, wherein the ends of the tension spring 14 with not shown

Fixing plates are mounted in corresponding grooves of the profile of the side frame 2A.

FIGS. 8A and 8B essentially correspond to FIGS. 7A and 7B, but the illustration has been selected in a somewhat higher range, so that the drive and the power supply for the drive can also be identified.

Clearly a cable channel K can be seen, in which the deflected cable 12 and the tightening of the cable 12 causing pendulum weight 13 run. The strength of as Disk formed pendulum weight 13 corresponds approximately to the clear width of the cable channel K.

Also shown is a guide 30 mounted in the rear area of the side frame 2A, which ensures that the slide 31 moves reliably to its end position during the opening process.

Only indicated is recognizable a motor 32, the drive shaft 8, as already described, is provided with a drive pinion 7, which for the vertical

Movability along the rack 6 ensures. Further gears 33 and 33 'are driven by a likewise arranged on the drive shaft 8 gear 7' and transmit the rotational movement to a transmission 34 which includes a slip clutch and is not further described here. FIGS. 8A and 8B also show the formation of the cam 17 within the rigid guide rail 15 with the cam 17 in communication with a link 19. Fig. 8A shows in the above-mentioned circular segment-shaped slot L of the slotted guide one with the gear 33 in operative connection

Sliding block 35, which in turn has a cam 36 which engages in the movable guide rail 9 and serves as a drive for the adjustment thereof.

From Fig. 9, a schematic side view of the cross member 5, the arrangement of the individual gears 7 ', 33' and 33 is apparent, which serve as a drive for moving the sliding block 35 in the slot L. In the embodiment shown in Fig. 9, the sliding block 35 is in the end position, open '[apart driven guide rails 9 and 15), corresponding to FIGS. 4B, 5B and 8A.

A further embodiment of the sunshade system according to the invention is shown in perspective in FIG. 10 (analogous to FIG. 1) in the closed state. In contrast to Fig. 1 can be seen here a spanning the entire component End cap 3 ', which builds higher than the end cap 3 of the above

described system.

Fig. IIA shows analogous to Fig. 2A, the system of Fig. 10 without the lining of the left side frame 2A. It can further be seen that, above the lamellae 4, a drivable shaft 37 extending from both sides on a drive 36

is provided for the vertical movement of the slats 4 by vertical

Method of a cross member 5 'at the lower end of the slats 4 is used. To drive a respective roller 38 is disposed at both ends of the shaft 37, on each of which a textile belt 39 od. Gl. Is rolled up, at the lower end of the cross member 5 'is fixed.

It can further be seen that the traverse 5 'has at its ends in each case a free-rotating pinion 40 which engages in the side frame 2A and 2B arranged rack 6. Each pinion 40 is covered by a semi-cylindrical cover 41 to protect it from contamination, etc. It can be seen clearly that the lower end of the textile belt 39 is firmly connected to the upper end of the cover 41. In the traverse 5 'is also an additional weight 42 that ensures that the bands 39 are always in a streamlined state.

The adjustment of the slats also works in the second embodiment of the sunshade system of FIGS. 10 and IIA in the same manner as in the first embodiment. For better explanation, therefore, the system of Fig. 10 in Fig. IIB is also shown again in a partially sectioned side view, with the exact positional arrangement of the drive 36, the roller 38, the belt 39, the pinion 40 and the cover 41 to recognize are.

Finally, it can be seen from FIGS. 12A and 12B, which correspond essentially to FIGS. 7A and 7B, that the pinions 40 are arranged freely rotating at the end of the traverse 5 'and can only be moved by the belt 39 (not shown here) when vertical. and shut down while simultaneously driving a pinion 41 ', which, just like the pinion 7 'in Fig. 7A and 7B is used to initiate the pivoting movement of the slats 4 in the manner already described. FIG. 12A shows a drive situation in the open position and FIG. 12B shows the corresponding closed position of the adjustment drive in the side frame 2A.

It is again pointed out that the previously described figures show only embodiments of the present invention. Various other embodiments are possible without departing from the core of the invention defined in the claims.

Claims

claims

1. Sun protection system, in particular for use in a window or

Door reveal, with a plurality of horizontally arranged lamellae (4), which are compactly stacked in the retracted state and completely cover the window or door opening in the extended state, the lamellae (4) are adjustable in inclination and wherein at least one drive for vertical movement and intended for tilt adjustment,

characterized in that

each lamella (4) at its front ends in each case two spaced-apart cams (16, 17), which in the guide rails (9, 15) are vertically movable, that the guide rails (9, 15) for adjusting the inclination toward and away from each other are designed to be movable and that two adjacent lamellae (4) are interconnected by means of chain links.

2. Sun protection system according to claim 1,

characterized in that

at each end of the slats (4) has two guide rails (9, 15) are provided, one of which is designed as a rigid guide rail (15) and the other guide rail (9) is movable.

3. Sun protection system according to claim 2,

characterized in that

both guide rails (9, 15) in each case in a side frame (2A, 2B) are arranged and that each movable guide rail (9) in the respective side frame (2A, 2B) in a parallel to the outer wall of the side frames (2A, 2B) extending plane is constrained ,

4. sun protection system according to claim 3,

characterized in that

each movable guide rail (9) is an integral part of a carriage (31) forcibly guided in the side frame.

5. Sun protection system according to one of claims 1 to 4,

characterized in that

each movable guide rail (9) is connected to the rear area of the side frames (2A, 2B) by means of at least one tension spring (14), and in that the tension springs (14) are in their rest position when the slat position is open.

6. Sunscreening system according to one of claims 1 to 5,

characterized in that

the lamellae (4) in their closed position by means of each

corresponding holding elements (18, 18 ') mutually support at their longitudinal edges.

7. Sunshade system according to one of claims 1 to 6,

characterized in that

in each case two articulated chain pieces (19) are provided as chain links between two adjacent lamellae (4), and that each chain formed therefrom is guided in the respective rigid guide rail (15).

8. Sunscreening system according to claim 7,

characterized in that

in the retracted state all lamellae (4) in the upper part of the

Sunscreen system are stacked, the chain pieces (19) from the guide rail (15) leaked and folded.

9. sun protection system according to one of claims 1 to 8,

characterized in that

all guide rails (9, 15) guide inserts (24, 24 ') have. 10. Sun protection system according to one of claims 1 to 9,

characterized in that

below the slats (4) a cross-member (5) is provided, which is designed as a housing for at least one drive. 11. Sun protection system according to claim 10,

characterized in that

in the Traverse (5) two drive motors (32) are provided, which are each supplied by a in the side frame (2A, 2B) guided cable (12) and optionally controlled.

12. Sun protection system according to claim 11,

characterized in that

the cable (12) is designed as a supply cable and / or data cable and is forcibly guided by means of a pendulum weight (13) in the side frame (2A, 2B).

13. Sun protection system according to one of claims 1 to 12,

characterized in that

each drive for vertical movement of the slats (4) into an in

Side frame (2A, 2B) arranged rack (6) or a toothed belt tooth profile (6 ') engaging drive pinion (7).

Sunscreening system according to one of claims 1 to 13,

characterized in that

two drive motors (32) are provided, which as

Gleichstromgetriebemotor executed and by means of Gebersysti

are synchronized.

15. Sun protection system according to one of claims 1 to 9,

characterized in that

above the lamellae (4) by a drive (36) drivable shaft (37) is provided, for vertical movement of the slats (4) by vertical

Method of a traverse (5 ') at the lower end of the slats (4) is used.

16. sun protection system according to claim 15,

characterized in that

at both ends of the shaft (37) in each case a roller (38) is arranged, on each of which a band (39) is rolled up, at the lower end of the cross member (5 ') is fixed.

17. Sun protection system according to claim 16,

characterized in that

the traverse (5 ') at each end in each case a freely rotating pinion (40), which in a side frame (2A, 2B) arranged rack (6) or a toothed belt tooth profile (6') engages. 18. Sun protection system according to one of claims 1 to 17,

characterized in that

for adjusting the inclination of the slats (4) the movable guide rail (9) by means of a slotted guide to change their distance from the rigid guide rail (15) is movable.

19. Sun protection system according to claim 18,

characterized in that

each slotted guide a circular segment-shaped slot (L) and a correspondingly shaped sliding block (35).

20. Sun protection system according to claim 19,

characterized in that

for adjusting the inclination of the slats (4) a transmission is provided, which is connected to the drive for vertical method.

Sun protection system according to claim 20,

characterized in that

the gear has a slip clutch (34), which in the respective end position of the sliding block (35) in the slot (L) is used.