DE20103970U1 - Decoration system for windows, doors or the like. - Google Patents

Description

BUSE · MENTZEL · LÜDEWIG patent attorneys

EUROPEAN PATENT AND TRADEMARK ATTORNEYS

PO Box 2014 62 Kleiner Werth 34 Dipl.-PhyS. Mentzel

D-42214 Wuppertal D-42275 Wuppertal Dipl.-Ing. Ludewig

^ ' Wuppertal,

Password: "Folding bar II"

August Bünger Bob-Textilwerk GmbH & Co. KG, Wichlinghausener Str. 38-40, 42277 Wuppertal

Decoration system for windows, doors etc.

The invention relates to a decoration system of the type specified in the preamble of claim 1. This system consists of two system parts, namely a curtain on the one hand and a straight support strip on the other.

In the known decoration system of this type (DE-GM 82 00 021.2), the second subsystem consists of a rigid rail profile to which one element of a two-part adhesive fastener is attached. This attachment is normally done by gluing, but can also be done by clamping if the rail profile has clamping legs for gripping the adhesive fastener tape.

In a decoration system of another type (DE-OS 22 28 234), it is known to attach folding panels to the upper edge of the curtain in order to fold a curtain. The folding panels are hinged to one another at their ends and are connected to a group of sliding pieces via a swivel joint. These

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Sliding pieces are slidably mounted in a straight guide rail. The guide rail is the actual supporting element in this decoration system. The aim of this decoration system is to fold the curtain in a predetermined zigzag-shaped vertical fold when used as intended. The V-shaped folds take up a defined fold angle between them. This fold angle is set by stops in the area of the folding plate hinges. These stops basically prevent the curtain from being stretched out. The swivel joints, however, allow the curtain to be pushed together, which reduces the fold angle. The rigid guide rail is a bulky structure when the decoration system is delivered. To set up this different decoration system, numerous components of a complicated shape are required, which are complex to manufacture and time-consuming to assemble. This decoration system is very expensive.

The decoration system of the type specified in the preamble of claim 1 is considerably cheaper. This decoration system facilitates the assembly work when connecting these two system parts due to the adhesive fastener connection between the curtain on the one hand and the straight support strip on the other. However, this also results in system-related disadvantages.

With this well-known system, the user could purchase the first part of the system, namely the curtain, already largely ready-made. If the curtain consists of a Roman blind, for example, all the relevant assembly elements can already be attached to the curtain fabric, e.g. carrying straps, cord guide clips and even the drawstring. This curtain has one element of a two-part adhesive fastener in the upper edge area, e.g. a band with loops of a Velcro fastener. Such a pre-assembled curtain can be folded together when it is delivered and stored, thus forming a handy curtain package. The curtain packages are labeled according to the different widths and lengths of the curtain fabric and are ready for purchase by a customer. This system part is ideal for

Self-service facilities in department stores. The marketing is ideal. Unfortunately, this does not apply to the other part of the system.

As already mentioned above, the other part of the system, namely the support bar, can be easily connected to the unpacked first part of the system during use because the two complementary elements of a hook and loop fastener mentioned above only need to be pressed together. However, preparing this second part of the system during delivery and storage is cumbersome. Support bars must be kept ready in different lengths. Because the support bars are a bulky object, preparing them in the known decoration systems is cumbersome and confusing. When selling the known systems in self-service facilities, confusion can easily arise when selecting the hanging on the one hand and the support bar on the other. Some users also found it annoying to connect the two parts of the system by pressing the complementary hook and loop fastener elements together.

The invention is based on the object of developing an inexpensive decoration system of the type mentioned in the preamble of claim 1, which can be handled easily and reliably. This is achieved according to the invention by the measures mentioned in claim 1, which have the following special significance.

The original folded position of the support bar means that this second system part can also be designed to be compact and space-saving when delivered. The folded bar sections result in a small package of bars when not in use. This makes packaging, storage and transport easier. The allocation of such a package of bars to a curtain folded in a similar way is now easy and clear. The support bar, folded into its compact folded position, can be kept ready together with the curtain in a single package. This means that there is no longer any risk of confusion when buying in self-service facilities. When buying, the customer acquires

Customer guarantees that system parts fit together; the dimensions of the curtain match the length of the support rail.

The invention even makes it possible to create complete, fully assembled decoration systems. This is achieved by first pressing the support bar in its stretched position and the curtain in the stretched-out state together with their complementary adhesive fastener elements. The system parts connected in this way are then folded together in a coordinated manner to form a combined curtain-bar package. The customer who purchases such a combination package only needs to unfold the two connected elements and can then use them straight away. The unfolded product can then be attached to a support or similar using the brackets on the support bar. The support then ensures that the hinges within the support bar cannot bend uncontrollably. The fastening means ensure that the support bar is in the stretched position when in use.

Further measures and advantages of the invention emerge from the subclaims, the description and the drawings. The invention is shown in several embodiments in the drawings. They show:

Fig. 1 Fragments of the two system parts according to the invention

their combination, namely a prefabricated curtain and a support bar,

Fig. 2, enlarged, a side view of the finished

assembled and attached decoration system according to the invention,

Fig. 3 in fragments, the top view of the in its extended position

located support bar,

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Fig. 4, enlarged, a longitudinal section through a section of the

Fig. 3 shown support bar along the section line IV -

Fig. 5, enlarged compared to Fig. 3, an end view of the

Support strip with a partial breakout,

Fig. 6a-6d, in a greatly reduced size, the top view of support strips in four different total lengths,

Fig. &Iacgr;, top view of the support bar brought into its folded position

Fig.8,9 +10 the side view, front view and top view of an angle which serves to attach the support bar and

Fig. 11 + 12, in analogy to Fig. 8 and 10, the side view and the front view of a modified angle, which serves not only for fastening the support bar, but also for guiding a drawstring.

As already mentioned, the decoration system consists of two system parts 10, 20, which are designed to match each other. The first system part is a curtain 10, which in this case is designed as a roman blind. Instead of a roman blind, a pleated blind, a valance or a valance could also be used. The area of application of such a curtain can be any. In any case, a band body 18 is attached to the upper edge area of the curtain, which has a first element of a hook and loop fastener, for which in this case loops of a Velcro fastener are used.

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The curtain is advantageously prefabricated. The Roman blind 10 shown in the present case has several assembly means which serve to lay the curtain material 51 into horizontal folds 52. For this purpose, the curtain material 51 is provided with hanging loops 13 which serve directly or indirectly to guide a drawstring 15. In the present case, the loops 13 are part of several support bands 12 which are attached to the fabric web 51 in several vertical pulls. In addition, the cord is guided indirectly here, via clips 14 which can be hooked into selected hanging loops 13 of the support band 12. If several loops are caught in this process, firm horizontal folds 52 can occur even when the curtain 51 is lowered. The curtain material 51 is pulled up using the cords 15, for which suitable guide eyelets 53 are arranged in the upper edge area 11. The curtain fabric 51 advantageously has a hemstitch 54 in its lower edge region, into which a weighting rod 16 can be threaded.

The other system part of the invention, namely the support bar 20, is designed in a special way, as can be seen in particular from Fig. 2 to 7. The support bar 20 is divided into several bar sections 21 by a group of hinges 23, 24. The use case is shown in Fig. 3, where the support bar 20 with its bar sections 21 is in a stretched state. This is illustrated in Fig. 3 and 4 by the stretched line 20.2 and is to be referred to as the "stretched position" of the support bar. In its stretched position 20.2, the total length 26 of the support bar 20 is present.

The hinges 23, 24 here consist of film hinges, each of which is designed as a double hinge. These double hinges are created by pressing in both broad sides of the strip, which is made of plastic and is therefore produced in one piece with the hinges 23, 24. It can be produced by extrusion from plastic, with the double film hinges 23, 24 simply being pressed in at the same place from both surface sides. This creates the upper

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and lower parts 23.1 and 23.2 of the double hinge. This allows folding in both directions, which will be explained in more detail with reference to Fig. 7. The film hinges 23, 24 are arranged in pairs and each closes a strip spacer 25, which plays a special role before use, according to Fig. 7.

Before use, the support strip 20 is bent at its film hinges 23, 24 approximately at a right angle by an angle 47 and goes into a "bent position" which is shown by the meandering dash-dot line 20.1 in Fig. 7. The individual strip sections 21 can come into a parallel position to each other and are separated from each other by a distance 19 which results from the given length of the mentioned strip spacer 25. In this bent position 20.1 there is a strip package 50 whose package length 22 results from the partial length of the individual strip sections 21. The support strip can come from its bent position 20.1 into its extended position 20.2 by simply pulling it apart like an accordion. This extended position 20.2 is secured during intended use by fastening means 30, 45 which can be designed in different ways.

In the simplest case, the support bar 20 is provided with molded-on angles 30 which serve for fastening. These angles 30 could be formed in one piece with the material of the support bar 20, but in the embodiment shown, a two-piece design is advantageous. While the support bar 20, as already mentioned, can be manufactured using an extrusion process, the angles 30 are manufactured using an injection molding process. The angles 30 can also be made of plastic. As can be seen from Figs. 8 to 10 in conjunction with Fig. 2, the angles have a receiving leg 31 for the support bar 20 and a fastening leg 32 for fastening the structural unit 55 of Fig. 2 to any support 40. For this purpose, the fastening leg 52 has an opening 37 through which, for example, simple fastening screws can be passed, which in a

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continuous beam. By fastening the angles 30, the support strip 20 accommodated therein is not only also fastened to the beam, but is also fixed in its extended position 20.2 of Fig. 3. This is achieved by a suitable profiling 34 of the aforementioned receiving leg 31.

The receiving leg 31 is, as shown in Fig. 8, provided with a C-receiving profile 34 which forms two claws 35, 36. The support rail 20 is inserted into this C-shaped interior and, as the movement arrow 33 in Fig. 1 shows, is longitudinally displaceable. The position of the angles 30 is expediently secured by locking means 38, 48, 48'. These consist of a locking projection 38 shown in Fig. 8 in the interior of the receiving profile 34 of the angle 30 on the one hand and a locking hole 48, 48' at defined points on the support bar 20 on the other. The engagement position of these coupling means 38, 48 can be seen in Fig. 2. The locking holes 48, 48' do not hinder the aforementioned strand production of the support bar 20; they are introduced into the strip material after extrusion, similar to the hinge pairs 23, 24. The position of the strip pairs 23, 24 on the one hand and the locking holes 48, 48' on the other hand is expediently designed to be coordinated with one another in order to produce prefabricated strips according to Fig. 6a to 6d starting from a finished strip pre-product.

The aforementioned angles can also be designed as "combination angles" which combine two functions. One function consists in the reception of the support bar 20, as already described for the angle 30. For this purpose, the reception leg 61 of the combination angle 60 is designed in a similar way to the previously described reception angle 31, which is why the same reference numerals as for the angle 30 have been used to name these components. The special feature of the combination angle 60 lies in the second function, which consists in guiding the aforementioned drawstrings 15 of the Roman blind 10 and having the drawstrings 15 carried by the support bar 20. For this purpose, a hook 63 is formed in the area of the lower claw 36, which has an eyelet 64 in the lower

Edge area of the combination angle 60. This eyelet 64 can be closed in itself if the free hook end 65 is in contact with the back of the receiving leg 61. Because the combination angle 60 is also made of plastic, the hook 63 can be briefly bent elastically by grasping the hook end 65 in order to easily insert the pull cords 15 to be held into the eyelet 64. After releasing the spread-out hook end 65, the eyelet 64 closes again to form the closed ring shape shown in Fig. 11.

In Fig. 6a to 6d there are four different lengths 26.1 to 26.4, which differ from each other by a length difference of e.g. 200 mm each. In all cases there is a locking hole 48 at the end of the respective support strip 20 for arranging an angle 30. Similarly, analogous locking holes 48 are provided close to the two pairs of strips 23, 24 or a locking hole 48' in the middle of the strip spacer 25. In this way, the above-mentioned stretched position 21.2 of the respective support strip 20 can be secured in use.

As the folding position 20.1 of the assembly 55 in the strip package 50 of Fig. 7 shows, the angles 30, 60 can already be pushed or clipped onto the support strip 20. This already results in a prefabricated assembly consisting of the support strip 20 and the required angles 30, 60. When folding, the angles 30, 60 do not need to be dismantled. They do not hinder the folding of this assembly because the angles 30, 60 have an angular length 39, which can be seen in Fig. 7, which is slightly smaller than the distance 19 between the folded strip sections 21. The offset of the two locking holes 48 compared to the hinges 23, 24 assigned to them is already noticeable in Fig. 6a. As shown in Fig. 3, the corresponding distances 56, 57 are chosen to be so different that, after the angles 30 have been assembled, the structural unit 55 can be bent undisturbed with respect to the angles 30 as shown in Fig. 7. In the bent position shown in Fig. 7, the angles 30 arranged on both sides of their spacer piece 25 are undisturbed and sufficiently spaced apart from one another, which is why collisions during folding and stretching are avoided. If the angles 30,

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60 are seated at the central hole 48' of the strip spacers 25, their position is absolutely unproblematic because their fastening legs then run parallel to the folded strip sections 21, which is not shown in detail in Fig. 7.

As can be seen from Fig. 3 to 5, the angles 30, 60 have a receiving groove 29 on their surface side facing away from the fastening legs 31, 61, into which a band body 28 with complementary elements 27 of the adhesive fastener can be fastened. In the present case, these are hooks 27 of a Velcro fastener. The fastening of the band body 28 in the receiving groove 29 can be done, for example, by gluing. The band body 28 is flexible in itself and does not interfere with the described bending 47 of the support strip 20 at its film hinges 23, 24. On the contrary, the band body 28 reinforces the film hinge 23. This significantly reduces the risk of breakage when bending and stretching the individual sections of the support strip 20.

As already mentioned, the formation of the strip package 50 of Fig. 7 on the one hand and the folding of the finished Roman blind on the other hand can be combined. This can already be done by the manufacturer; the manufacturer not only produces the two system parts 10 on the one hand and 20 on the other hand shown in Fig. 1, but also connects them to one another. When the curtain 10 is spread out and the support strip 20 is in the stretched position 20.2, the two-sided adhesive elements 27 of these system parts are brought into engagement with one another. The decoration system thus combined from its subsystems 10, 20 is now bent or folded together. The folding position 20.1 of the system part of the structural unit 55 made up of the support strip 20 and angles 30, which can be seen in Fig. 7, is indicative of the folding of the fabric web 51 in its width direction 49, which can be seen in Fig. 1. The construction height 58 of the structural unit 55 made up of the support strip 20 and angles 30, 60, which can be seen in Fig. 2, can serve as a directional point for the folding of the fabric web 51 in its length direction 59, which can be seen in Fig. 1. In this way, a combined curtain strip package (not shown in detail) is obtained from both system parts, the basic structure of which is made up of the folding position of

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Fig. 7. This combined curtain rail package can also use the integrated pull cord 15 to secure its position. This can be used to tie down such a combined package.

Such a combined package can be offered to a wide range of customers in self-service facilities. They purchase a package in which not only all the components of the decoration system are already included, but also already assembled together. The customer only needs to open and unfold the package to get to the finished decoration system according to the invention. The customer then only needs to attach this, as already described, to a suitable support using the angles 30 attached to it. Fig. 2 shows a special application for this.

In Fig. 2, a conventional inner guide rail 40, such as is used for folding curtains that are attached via hangers, serves as the support for the decoration system according to the invention. Such an inner guide rail 40 is already available to the customer from an earlier, different type of decoration system. A so-called intermediate fastener 45 is used as the fastening means. This consists of a locking head 42 that engages in the interior 41 of the profile and, when in use, is supported on the inner surfaces of the two inwardly angled U-legs 46 of the inner guide rail 40. A threaded shaft 43 is located on the locking head 42, which in the present application passes through the aforementioned opening 37 in the fastening leg 32 of the angle 30 or 60. A handle 44 can be screwed onto this threaded shaft 43. When the handle 44 is screwed on, it engages the underside of the fastening leg 32 or 62 and presses it against the outer surface of the two inner rail U-legs 46. When the handle 44 is tightened, the fastening leg 32 or 62 is clamped between the rail U-legs 46 on the one hand and the handle 44 on the other.

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List of reference symbols:

10 Curtains, Roman blinds

11 upper edge area of 10

12 first assembly means for 10, carrying strap

13 Hanging loop on 12 for 13

14 second assembly tool for 10, cord guide clip

15 third assembly means for 10, drawstring

16 Weight bar for 10

17 first element of the fastener, loops

18 band bodies for 17

19 Distance between 23, 24

20 Support bar

20.1 Folding position of 20 (before use, Fig. 7)

20.2 Stretched position of 20 (use case, Fig. 3)

21 strip section of 20, package length of

22 Section length of 21

23 first hinge of the hinge pair, film hinge 23.1 upper part of the double hinge

lower part of the double hinge

24 second hinge of the hinge pair, film hinge

25 Strip spacer between 23, 24

26 total length of 20

26.1 first length of 20, 600 mm (Fig. 6a)

26.2 second length of 20, 800 mm (Fig. 6b)

26.3 third length of 20, 1200 mm (Fig. 6c)

26.4 fourth length of 20, 1400 mm (Fig. 6d)

27 second element of the fastener, hook

28 band bodies of 27

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29 Slot in 20 for 28, 27

30 angles, fastening elements for

31 mounting legs of 30 for

32 mounting legs of 30

33 Longitudinal displacement arrow from 30 to 20 (Fig. 1)

34 C-recording profile in 31

35 upper claw for 34

36 lower claw for 34

37 Breakthrough in 32

38 first locking element, locking projection on

39 Angle length of 30 (Fig. 7)

40 supports, inner track, U-track

41 Profile interior of 40

42 locking head of 45

43 threaded shaft of 45

44 Handling of 45

45 Intermediate locking device, fastening device for

46 U-leg end of 40

47 bend angle at 20.1 (Fig. 7)

48, 48' second locking element, locking hole at 20 or 25 (Fig. 4)

49 Width direction of 10 (Fig. 1)

50 strip package (Fig. 7)

51 Curtain fabric (Fig. 1)

52 horizontal fold of 51 (Fig. 1)

53 Guide eyelet for 15 (Fig. 1)

54 hemstitch for 16 (Fig. 1)

55 Assembly of 60, 30, 20 (Fig. 2)

56 Distance between 48, 23 (Fig. 3)

57 Distance between 48, 24 (Fig. 3)

58 Height of 55 (Fig. 2)

59 Longitudinal direction of 10 (Fig. 1)

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Combination angle (see Fig. 11, 12) Receiving leg of Fastening leg of Hook to eyelet of Hook end of

Claims (19)

1. Decoration system for windows, doors or similar, consisting of two system parts,
of which one system part consists of a preferably prefabricated ( 12 , 13 , 14 ) curtain ( 10 ) and carries on its upper edge region ( 11 ) one element ( 17 ) of a two-part adhesive fastener ( 17 , 18 ; 27 , 28 ),
while the other part of the system consists of a straight support bar ( 20 ) with at least two angles ( 30 ; 60 ) serving for its fastening,
wherein the support strip ( 20 ) carries the complementary element ( 27 ) of the adhesive fastener ( 17 , 18 ; 27 , 28 ), with which the support strip ( 20 ) can be attached to the upper edge region ( 11 ) of the curtain ( 10 ),
characterized ,
that the support bar ( 20 ) is divided into several bar sections ( 21 ) by hinges ( 23 , 24 ),
that the support strip ( 20 ) is brought into a bent position ( 20.1 ) when it is delivered, where the support strip ( 20 ) is bent ( 17 ) at the hinges ( 23 , 24 ) and its strip sections ( 21 ) are laid one on top of the other in a zigzag pattern and form a short strip package ( 50 ),
but that - before the intended use of the decoration system - the support strip ( 20 ) with its strip sections ( 21 ) can be brought into a stretched position ( 20.2 ) where the partial lengths ( 22 ) of its strip sections ( 21 ) add up to the total length ( 26 ) of the support strip ( 20 ). 2. Decoration system according to claim 1, characterized in that already upon delivery the two system parts ( 10 , 20 ) are connected to one another via the two elements ( 17 , 27 ) of the adhesive fastener ( 17 , 18 ; 27 , 28 ) and the support strip ( 20 ) together with the curtain ( 10 ) are brought into a combined folded position ( 20.1 ), wherein the curtain ( 10 ) is folded together not only in the width direction ( 49 ), corresponding to the partial length ( 22 ) of the strip sections ( 21 ), but also in the length direction ( 50 ) and forms a combined curtain-strip package. 3. Decoration system according to claim 2, characterized in that the drawstring ( 15 ) of the prefabricated curtain ( 10 ) is already integrated into the system and, in the resting state ( 20.1 ), serves as a lacing for holding the combined curtain-strip package together. 4. Decoration system according to one of claims 1 to 3, characterized in that the angles ( 30 ; 60 ) are formed on the support bar ( 20 ). 5. Decoration system according to one of claims 1 to 3, characterized in that the support strip ( 20 ) and the angles ( 30 ; 60 ) are prefabricated separately but can then be preassembled with one another to form a structural unit ( 20 , 30 ) which finally interacts with the curtain ( 10 ). 6. Decoration system according to claim 5, characterized in that the angles ( 30 ; 60 ) consist of a fastening leg ( 32 , 62 ) serving for fastening to a support ( 40 ) or the like on the one hand and of a receiving leg ( 31 , 61 ) for the support strip ( 20 ) on the other hand and the receiving leg ( 31 , 61 ) serves for longitudinally displaceable ( 33 ) reception of the support strip ( 20 ). 7. Decoration system according to one of claims 1 to 5, characterized in that the angle ( 60 ) has a guide means ( 64 ) for a pull cord ( 15 ). 8. Decoration system according to claim 7, characterized in that the angle ( 60 ) has, in addition to the guide means ( 64 ) for the drawstring ( 15 ), also a receptacle ( 34 ) for the support strip ( 20 ) and forms a combination angle ( 60 ) fulfilling dual functions. 9. Decoration system according to claim 7 or 8, characterized in that the guide means ( 64 ) consists of an eyelet ( 64 ) which is integrally formed at the lower end of one leg ( 61 ) of the angle ( 60 ). 10. Decoration system according to claim 9, characterized in that the eyelet ( 64 ) is formed by a ring course of a hook ( 63 ). 11. Decoration system according to claim 10, characterized in that the hook ( 63 ) of the angle ( 60 ) formed from elastic material, such as plastic, has a flexible hook end ( 65 ) which can be elastically bent relative to the angle leg ( 61 ) having the hook ( 63 ). 12. Decoration system according to one of claims 5 to 11, characterized in that between the support bar ( 20 ) on the one hand and the angle ( 30 , 60 ) on the other hand complementary locking elements ( 38 , 48 ) are provided, which, when locked, determine a defined position of the angle ( 30 , 60 ) on the support bar ( 20 ). 13. Decoration system according to claim 12, characterized in that the associated locking element pair consists of a projection ( 38 ) and a hole ( 48 , 48 '), the locking projection ( 38 ) being arranged on the angle ( 30 , 60 ) and the locking hole ( 48 ) being arranged on the support bar ( 20 ). 14. Decoration system according to one or more of claims 1 to 13, characterized in that the support strip ( 20 ) consists of plastic material and has film hinges ( 23 , 24 ) which are arranged transversely to its longitudinal course. 15. Decoration system according to claim 14, characterized in that the film hinge ( 23 ) is designed as a double hinge ( 23.1 , 23.2 ) which is formed at the same location, but on the two opposite broad sides of the support strip ( 20 ). 16. Decoration system according to one of claims 1 to 15, characterized in that the support strip ( 20 ) has at least one pair of hinges ( 23 , 24 ) between two strip sections ( 21 ) with a strip spacer ( 25 ) located therebetween, the pair of hinges ( 23 , 24 ) having two 90° bends ( 47 ) at the deflection points of the support strip ( 20 ) brought into the bent position ( 20.1 ) and two adjacent strip sections ( 21 ) running essentially parallel to one another and being spaced apart by the strip spacer ( 25 ). 17. Decoration system according to claim 16, characterized in that the distance ( 19 ) between the individual hinges ( 23 , 24 ) of a hinge pair is greater than or equal to the length ( 39 ) of the angles ( 30 , 60 ). 18. Decoration system according to one of claims 1 to 17, characterized in that the angle ( 30 , 60 ) has an opening ( 37 ) for fastening means ( 45 ) and the opening ( 37 ) is arranged on the fastening leg ( 32 , 62 ) of the angle ( 30 , 60 ). 19. Decoration system according to claim 18 which is fastened to an inner running rail ( 40 ), characterized in that an intermediate locking device ( 45 ) serves as the fastening means, which consists of a locking head ( 42 ) engaging into the interior ( 41 ) of an inner running rail with a threaded shaft ( 43 ) and a screw handle ( 44 ), that in the fastening case the threaded shaft ( 43 ) of the intermediate locking device ( 45 ) passes through the opening ( 37 ) of the angle ( 30 , 60 ) and the angle ( 30 , 60 ) can be clamped between the handle ( 44 ) and the inner running rail ( 40 , 46 ) when screwed.