ES2658747T3 - Sun protection device - Google Patents

Abstract

Sun protection device (1) with a sun protection blind (2) that can be rolled up and unrolled on a tree (3), which is composed of an arrangement of lamellae (4) joined through articulated joints (9), consecutively in the direction of the winding and unwinding, which respectively have a multiple arrangement of segments of lamella (5), where to establish the articulated joint (9) the widening of the circular or hook-shaped cross section of a second articulated element (11), respectively on the upper edge of a lamella (4), in the complementary cavity of a first articulated element (10) on the lower edge of an adjacent lamella (4), and where the lamella segments (5) of a lamella (4) are themselves rigidly configured, such that when they are rolled or unrolled on the tree (3) they maintain their shape, characterized in that the lamellae adjacent (4) are joined together by insertion and are secured in position against lateral displacements by means of interlocking pieces (12), which are embedded in recesses (13) on the edge of the lamellae (4) on their sides upper or lower in the area of the first (10) and the second (11) articulated element.

Description

Sun protection device

The invention refers to a sun protection device according to the preamble of claim 1.

A sun protection device of this type is known from EP 2 607 602 A1. This sun protection device comprises a sun protection blind that can be rolled over a tree. The sun protection blind is composed of an arrangement of lamellae joined through articulated joints, consecutively in the direction of the winding, which respectively have a multiple arrangement of segments of lamella and which are themselves configured rigid, in such a way that when they roll over the tree they keep their shape. The same applies correspondingly to the unwinding of the sun protection blind from the tree.

The individual lamella segments are joined together by insertion in such a way that the optical perception from the outside turns out to be very homogeneous, that is to say, the union between the individual lamella segments cannot be seen.

The sun protection blind is structured in such a way that only the articulated joints can be moved between the individual lamellae and, thus, are responsible for the necessary adaptation of the sun protection blind for a winding or developed on the tree. The individual lamellae are, on the contrary, configured in themselves rigid and thus stable in shape, that is, they do not unfold during a winding or developed process. Through this stability of form they have a high natural stability.

To establish an articulated joint between two lamellae of a sun protection device of this type, a first lamella normally has a first articulated element, which is introduced into an articulated element for this purpose complementary to a second lamella. The individual lamella is structured in such a way that the blind can be developed from the front and the back.

After introducing the articulated elements it is necessary to secure them in their position, to avoid further horizontal displacements. In known sun protection devices, this position insurance is carried out by means of the insertion of closing pieces in the cavities of the lamellae on the longitudinal sides. This kind of position insurance is common and can be achieved relatively easily.

However, the forecast of these closure pieces is problematic if it is lamellae without cavities.

Document DE 87 02 763 U1 refers to a rolling shutter, composed of profiled bars inserted into each other, which are secured against longitudinal displacement. The protection against displacement is realized by means of lateral cams and some recesses.

The object of the invention is to make available for a sun protection device of the aforementioned class an interlocking, which has a high multiple functionality with reduced construction complexity.

In order to solve this object, the characteristics of claim 1 are provided. In the dependent claims, advantageous conformations and convenient improvements of the invention are described.

The sun protection device according to the invention comprises a sun protection blind that can be rolled over a tree. The sunscreen blind consists of an arrangement of lamellae connected through articulated joints, consecutively in the direction of the winding, which respectively have a multiple arrangement of segments of lamella. The adjacent lamellae are secured in their position against lateral displacements by means of interlocking pieces, which are embedded in recesses in the lamellae on their upper or lower sides.

A fundamental advantage of the invention is that by positioning the interlocking pieces in the recesses of the lamellae, position locks for the individual lamellae are made available very easily and quickly. The sun protection shutter can be produced or mounted in this way quickly and easily. It is particularly advantageous for the recesses to be located on the upper or lower sides of the lamellae, which makes possible a particularly simple and comfortable fit of the interlocking pieces in these recesses, by means of which these interlocking parts fit into the Lamellae from above or below.

Interlocking pieces are conveniently provided on both edges of the lamellae on the lateral sides.

In this way, the lamellae are completely secured against mutual displacement.

The interlocking parts used for this are composed of plastic material, unlike the lamellae that are composed of metallic materials such as aluminum or stainless steel.

The interlocking parts are preferably preferably composed of a single injection molded part of plastic material, which can be produced economically. Particularly preferably, all the interlocking parts of the sun protection device are configured identically, whereby these interlocking parts can be manufactured in a particularly rational manner, since no different variant is needed.

A particular advantage of the invention is that with the interlocking parts not only a position lock is achieved, respectively between two lamellae joined together in an articulated manner. Rather, they also fulfill protection functions for the entire sun protection blind. This safety function is fulfilled by means of which the interlocking pieces, which are composed of a relatively soft and thereby flexible material, protect the metal lamellae against contact with also metallic bodies and thus protect the lamellae from damage.

Particularly advantageously, segments of the interlocking pieces protrude laterally above the edges of the lamellae on the lateral sides and thus form abutment surfaces.

This prevents, in a constructively simple way, that the lamellae when winding or unrolling on the tree come into contact with a rail or other guide, which could lead to damage to the lamellae. Rather, only the segments of the interlocking pieces that protrude laterally from the lamellae come into contact with the rail and thus protect the lamellae from collision with the rails.

Likewise advantageously, segments of the interlocking pieces protrude from the upper or lower sides of the lamellae and thus form protective elements during the winding or unwinding of the lamellae.

The segments that protrude up and / or above the lamellae prevent the lamellae from coming into close contact with each other during winding or unwinding and thus prevent damage to the lamellae.

Particularly advantageously, all the interlocking parts are configured identically, so that only one interlocking part model is needed for the entire sun protection device. This makes possible on the one hand a rational production of the interlocking parts and, in addition to this, simplifies the assembly of the sun protection device, since it is not necessary to mount different interlocking parts in certain and different installation positions.

According to a particularly advantageous constructive conformation, each interlocking piece has a head piece, which is arranged in the area of an articulated joint between two lamellae and by means of it, a position lock is obtained between two adjacent lamellae.

In this regard, each interlocking piece has a strip connected to the head piece, which is mounted on recesses of only one lamella, where the head piece of the interlocking piece has a width greater than the slat.

The lath inserted in the recesses of a lamella produces a stable assembly of the interlocking piece in the lamella and is responsible for a correct positioning of the head piece of the interlocking part between two lamellae, so that it can meet its function of ensuring the position of the lamellae against lateral displacement.

In general, the recesses form linear arrangements in the direction of winding or unwinding of the sun protection blind, such that the longitudinal axes of the slats of the interlocking pieces, which are inserted in these recesses, also run in this direction. .

If the head piece of an interlocking part is mounted with a clearance between two lamellae, the interlocking part and in particular the slat can be moved somewhat in the longitudinal direction.

In order to avoid unwanted movement of this type of the interlocking part, the interlocking element advantageously has a crossbar, the longitudinal axis of which extends along the longitudinal axis of the slat.

In this regard, the crossbar protrudes from both sides above the slat, where the contour of the crossbar is adapted to the lamella segments of the lamellae.

By means of the crossbar the entire interlocking part is mounted on the respective lamella secured in this way against unwanted displacement, since it is located in a positively shaped connection in the structure of the lamella segments.

Alternatively, there are tacos in opposite sides of the slat of an interlocking element.

These studs form a friction joint with the edges of the recesses that limit the recesses in a lamella and are thus also responsible for a position lock of the interlocking piece in the lamella.

In general, an interlocking part can be equipped, for a lamella position insurance, both with a crossbar and with studs.

The recesses in the lamellae are particularly advantageously milled or punched to accommodate interlocking pieces.

The recesses in the lamellae can be produced in this way rationally and with high precision.

According to a particularly advantageous conformation of the invention, the recesses are produced in a process with the cutting of lamellae.

When cutting the lamellae from a base material, the recesses can be made by milling or punching with the sawing process, with which the lamellae are cut by cutting, simultaneously on the line of cut between the lamellae and adjacently on both sides . In this way an additional rationalization of the lamella production process is achieved.

The invention will now be explained based on the drawings. Here they show:

Figure 1: a schematic presentation of an exemplary embodiment of the sun protection device according to the invention.

Figure 2: A fragmentary view of the sun protection blind of the sun protection device according to Figure 1.

Figure 2a: an enlarged isolated exposure of a lamella segment of the arrangement according to Figure 2.

Figure 3: A plan view on the edge areas of the sunscreen blind lamellae according to Figures 1 and 2 with the interlocking parts used there.

Figures 4a, b: an isolated exposure of an interlocking piece for the lamellae according to figure 3 in two perspective exposures.

Figure 5: A plan view according to Figure 2 on the edge areas of two lamellae with the recesses made there.

Figure 6: A side view of an edge area of a foil.

Figure 1 shows the fundamental components of the sun protection device 1 according to the invention, which can be used in particular as sun protection in building windows, etc.

The sun protection device 1 comprises a sun protection blind 2, which can be wound and unrolled on a tree 3. Figure 1 shows the sun protection blind 2 unrolled on the tree 3. The sun protection blind 2 is then oriented in a vertical plane and is located in the opening of a window, etc.

The sun protection blind 2 is constructed with a multiple arrangement of insulated lamellae 4. Figure 2 shows two lamellae 4 coupled together, which are oriented in the vertical plane of the sun protection blind 2 unrolled on the tree 3, as He has depicted in figure 1.

The lamellae 4 are configured respectively rigid in themselves, that is, they have a thickness of material so large that they are stable in shape and are not flexible.

The lamellae 4 are composed of metallic materials such as aluminum or stainless steel.

In the present embodiment, the sunscreen 2 consists of a multiple arrangement of lamellae 4 configured identically. Each lamella 4 is in turn composed of a multiple arrangement of lamella segments 5 identically configured. Figure 2a shows an increased isolated exposure of a segment of lamella 5 of this type.

Each lamella element 5 comprises a first partial segment 6, which in the arrangement according to Figure 2 is arranged in a vertical plane (plane y). In this partial segment 6 an arrangement of light slits 7 is arranged, which extend essentially over the entire width of the lamella 4. The individual light slits 4 can be separated by slats 15, which are part of the partial segment 6.

Above the first partial element 6 with the light slit 7 a second partial element 8 is connected, configured completely not transparent to the light. As can be seen in particular in Figure 2a, the second partial element 8 is composed of a segment 8a, which runs in the x direction, is connected to the upper edge of the first partial segment 6 and to which a segment 8b flush in the address and. A segment 8c is connected to this segment 8b which runs in the y direction. These three segments 8a-8c form a rectangular shaped profile on the outer side of the lamella 4, which is turned towards the incident sunbeams (marked with S in Figure 2). From this rectangular profiled piece, a segment 8d of the partial segment 8 flows obliquely upwards, which runs towards the lower edge of the first partial segment 6 of the following segments of lamella 5.

By means of this configuration of the lamella segments 5, direct solar radiation through the light slits 7 is largely prevented. Rather, only the sunlight entering a narrow angular range enters after its reflection on the boundary surfaces of the lamella segment 5, in particular segment 8d of the second partial segment 8, through the light slits 7. In this way a controlled light incidence is obtained through the light slits 7, due to the specific configuration of the structure of the lamella segments

5.

As can be seen in Figure 2, the individual lamellae 4 are arranged consecutively in the direction and joined together in an articulated manner. To configure the articulated joints 9, a lamella 4 of a first articulated element 10 is provided on each lower edge, while a second articulated element 11 complementary to the first articulated element 10 is provided on the upper edge of the lamella 4.

The articulated elements 10, 11 are configured to form a piece with the respective lamella 4 and preferably extend over the entire width of the lamella 4, where the cross sections of the articulated elements 10, 11 are constant throughout the width.

The first articulated element 10 has a fundamentally circular cross-section, where the articulated element 10 embraces a cavity, which on the lower side has a mouth. Alternatively, the first articulated element 10 may be configured as a hook.

The articulated element 11 configured thereto in a complementary manner has a widening of circular cross-section at one free end.

To establish the articulated joint 9, the widening of the circular cross-section of the second articulated element 11 is introduced into the cavity of the first articulated element 10. In this way the articulated joint 9 is established, so that the two lamellae 4 thus joined can swing one respect to the other in the x plane

Y.

If the articulated elements 10, 11 of two adjacent lamellae 4 are inserted into each other, the lamellae 4 can still move relative to each other in their longitudinal direction. In order to eliminate this possibility of displacement and in this way to obtain a positional safety of the lamellae 4, the interlocking parts 12 are provided, as shown in figure 3, which are inserted from the upper side of the sunscreen blind 2 in corresponding housings on the edge of the lamellae 4. Figures 4a and 4b show an interlocking part 12 of this type in an individual display.

Figures 5 and 6 show the housings for the interlocking pieces 12, which are made in the form of recesses 13, 13a, 13b identically in the area of the two longitudinal edges of each lamella 4.

The recesses 13, 13a, 13b are practiced during milling or punching processes in the individual lamellae 4. In this regard, the recesses 13 are configured by means of which the partial segments 8 of the individual lamella segments 5 of a lamella 4 are completely flattened, such that these recesses extend to the plane of the partial segments 6, in the that the light slits 7 have been practiced. As can be seen in particular in Figure 6, the recesses 13 configured identically have a rectangular cross-section.

It is also provided on the upper edge of each lamella 4, in the area of the articulated element 11, a recess 13a in the form of a rectangular recess in a corner of the lamella 4. A corresponding recess 13b in the form of a recess is provided in the opposite corner in the area of the articulated element 10.

Figure 5 shows two lamellae 4 with mutually facing longitudinal edges, wherein the longitudinal axes of these lamellae 4 run along a straight line. This arrangement illustrates the process of making the lamellae 4, by means of which they are cut with a sawing tool in the desired length from a long bar-shaped base material. The cutting to separate the two lamellae 4 shown in Figure 5 is carried out along a cutting line A. During this cutting or sawing process, the recesses 13 are practiced simultaneously along the milling lines F1, F2. the edges of the lamellae 4 on the longitudinal side.

To secure the position of the lamellae 4 against a longitudinal displacement, the interlocking pieces configured identically from above are inserted in the recesses 13, 13a, 13b on the two longitudinal edges of the individual lamellae 4.

Figures 4a and 4b show the interlocking part 12 in an isolated exposure. The interlocking part 12 is composed of plastic material. The interlocking part 12 comprises a head piece 14 as well as a slat 15 adjacent to the head piece 14, which is configured essentially in the form of an elongated parallelepiped. The width of the head piece 14 is greater than the width of the slat 15, such that the head piece 14 protrudes above the side walls 15a, 15b of the slat 15. The bottom side of the head piece 14 is chamfering at the end turned towards lath 15 (figure 4a).

Likewise, the interlocking part 12 comprises a crossbar 16, the longitudinal element of which runs perpendicularly to the longitudinal axis of the slat 15 and protruding above the side walls 15a, 15b of the slat 15. The contour of the cross member 16 is adapted to the contours of the segments of lamella 5 of lamellae 4.

Finally, the interlocking part 12 has studs 17, which protrude from the side walls 15a, 15b of the strip 15.

All the aforementioned components of the interlocking part are part of an injection molded part of plastic material. The interlocking part 12 thus configured has specular symmetry in relation to a plane of symmetry that runs through its longitudinal axis.

Figure 3 shows an arrangement of several lamellae 5 connected in an articulated manner of the sun protection device 1, which are secured with the interlocking pieces 12 to avoid uncontrolled displacements in their longitudinal direction.

The head piece 14 of an interlocking part is thus mounted in the area of the articulated joint 9 of two lamellae 4. In this regard the head piece 14 is located in the recess 13a of a first lamella 4 and in the recess 13b of the adjacent lamella 4. The slat 15 of the interlocking piece is located in the recesses 13, 13a, 13b in the lamella segments 5 of each lamella 4 and thus extends almost the entire width of a lamella 4. The interlocking part 12 is placed from above on the lamella 4, whereby the head piece 14 and the lath 15 are inserted into the corresponding recesses 13, 13a, 13b. A movement of the interlocking piece in its longitudinal direction is prevented in this respect by means of the crossbar 16, which is interlocked in a positive way in the area between two segments of the lamella 5. Also also the studs 17 in the strip 15 of the interlocking piece 12 prevents displacements of the interlocking part in its longitudinal direction due to the tolerances, since the studs 17 make frictional contact with the edges of the lamella segments 5 that delimit the recesses 13, 13a, 13b In principle, an interlocking part 12 can also be equipped, to ensure the position in the recesses 13, 13a, 13b, only with a few studs 17 or alternatively only with a cross member 15.

Each interlocking part 12 is sized in such a way that, when the interlocking part 12 is mounted on the recesses 13, 13a, 13b of the lamellae 4, the side edge of the head piece 14 protrudes somewhat above the side edges of the lamellae 4. Thus the head piece 14 fulfills its protection function in such a way that the lamellae 4, during winding and unwinding of the sunscreen blind

5 2, do not strike against rails or other guides, so that the lamellae 4 are protected against damage.

Likewise, the interlocking part, in particular its head piece, also barely protrudes upwards above the lamellae 4. In this way the interlocking parts fulfill an additional protection function, such that during the winding and unwinding of the sunscreen shutter 2 the lamellae do not collide with each other, which could also cause damage to the lamellae 4.

10 List of reference symbols

(one)

Sun protection device

(2)

Sun protection shutter

(3)

Tree

(4)

Lamella

(5)

Lamella segment

(6)

Partial segment

(7)

Light slit

(8)

Partial segment (8a) Segment (8b) Segment (8c) Segment (8d) Segment

(9)

Articulated joint

(10)

Articulated element

(eleven)

Articulated element

(12)

Interlocking piece

(13)

Recess (13a) Notch (13b) Notch

(14)

Head piece

(fifteen)

Ribbon (15a) Side wall (15b) Side wall

(16)

Crossbar

(17) Taco

Claims (14)

one.

Sun protection device (1) with a sun protection blind (2) that can be rolled up and unrolled on a tree (3), which is composed of an arrangement of lamellae (4) joined through articulated joints (9), consecutively in the direction of the winding and unwinding, which respectively have a multiple arrangement of segments of lamella (5), where to establish the articulated joint (9) the widening of the circular or hook-shaped cross section of a second articulated element (11), respectively on the upper edge of a lamella (4), in the complementary cavity of a first articulated element (10) on the lower edge of an adjacent lamella (4), and where the lamella segments (5) of a lamella (4) are themselves rigidly configured, such that when they are rolled or unrolled on the tree (3) they maintain their shape, characterized in that the lamellae adjacent (4) are joined together by insertion and are secured in position against lateral displacements by means of interlocking pieces (12), which are embedded in recesses (13) on the edge of the lamellae (4) on their sides upper or lower in the area of the first (10) and the second (11) articulated element.

2.

Sun protection device according to claim 1, characterized in that the lamellae (4) are made of metal materials, and that the interlocking parts (12) are made of plastic material.

3.

Sun protection device according to one of claims 1 or 2, characterized in that interlocking pieces (12) are provided on both edges of the lamellae (4) on the lateral sides.

Four.

Sun protection device according to claim 3, characterized in that segments of the interlocking parts (12) protrude laterally above the edges of the lamellae (4) on the lateral sides and thus form stop surfaces.

5.

Sun protection device according to one of claims 3 or 4, characterized in that segments of the interlocking pieces (12) protrude from the upper or lower sides of the lamellae (4) and thus form protective elements during the rolled or unwound of the lamellae (4).

6.

Sun protection device according to one of claims 1 to 5, characterized in that all the interlocking parts (12) are configured identically.

7.

Sun protection device according to one of claims 1 to 6, characterized in that each interlocking piece (12) has a head piece (14), which is arranged in the area of an articulated joint (9) between two lamellae (4) ) and by means of it a position lock is obtained between two adjacent lamellae (4), and because each interlocking piece (12) has a slat (15) connected to the head piece (14), which is mounted in recesses (13) of only one lamella (4), where the head piece (14) of the interlocking piece (12) has a width greater than the slat (15).

8.

Sun protection device according to claim 7, characterized in that the interlocking part (12) has a crossbar (16), whose longitudinal axis runs perpendicularly to the longitudinal axis of the slat (15), wherein the cross member (16) protrudes on both sides above the bar (15).

9.

Sun protection device according to claim 8, characterized in that the contour of the crossbar (16) is adapted to the lamella segments (5) of the lamellae (4).

10.

Sun protection device according to claims 7 to 9, characterized in that tacos (17) lead to opposite side walls (15a, 15b) of the slat (15) of an interlocking element (12).

eleven.

Sun protection device according to one of claims 1 to 10, characterized in that the recesses

(13) in the lamellae (4) are milled or punched to accommodate interlocking pieces (12). 12. Sun protection device according to one of claims 1 to 11, characterized in that the recesses (13) are produced in a process with the cutting of lamellae (4). 13. Sun protection device according to one of claims 1 to 12, characterized in that the recesses (13) form linear arrangements in the direction of winding or unwinding of the sun protection blind (2). 14. Sun protection device according to claim 13, characterized in that all the lamellae (4) are configured identically and / or because each lamella (4) is a multiple arrangement of identical lamella segments (5).