EP3263824A1 - Venetian blind - Google Patents

Abstract

The invention relates to a slatted blind (10), comprising: laterally arranged guide rails (12), a shutter curtain (14) arranged between the guide rails with a plurality of slats (16'-16 '' '), a bottom rail closing the curtain upholstery (14) (18), and at least one elevator device (24). The lamellae (16'-16 '' ') each have a terminating diaphragm surface and an upper edge angled in the upper section, the angled upper edge being provided with laterally projecting guide pins (34'-34' '') over which the Slats (16'-16 '' ') are pivotally guided in the guide rails (12). The concluding diaphragm surface protrudes laterally at least in sections in such a way over the angled upper edge that projecting sections of the diaphragm surface can be brought into contact with the guide rails (12) and overlapped at least in sections with the lateral guide rails (12).

Description

The present invention relates to a slat blind according to claim 1 of the present invention.

Slat blinds serve as protection against sun rays and weather. In particular, the slat blinds can be mounted on the outside of a building in front of windows and / or doors. There are known lamella blinds, which contain a Storenbehang with a plurality of lamellae and a Storenbehang the final bottom rail. The slats and the final lower rail can be guided laterally between respective guide rails. The lamellae, together with the final bottom rail, may be provided by flexible connecting elements, e.g. Cords, be joined together. In addition, the individual slats can be pivoted in different inclination positions, thereby regulating a light incidence.

If the Storenbehang is lowered to the lowest possible position and the individual slats are pivoted together with the lower rail maximum out of the horizontal position out, a light incident can be largely shielded, or a high degree of darkening can be achieved.

A problem in the prior art is that between the side ends of the respective slats and the respective associated guide rails, a gap is established, through which light is incident into the building interior. Another disadvantage is that, additionally or alternatively, via respective through holes in the slats, through which elevator belts are guided, which extend from the upper receptacle to the lower rail, light enters the interior of the building. The said adverse light incidence across the gaps and / or the holes in the slats has the disadvantage that no complete darkening is achieved.

There are roller shutters are known which comprise a curtain of mutually flexibly connected aperture elements, wherein the curtain is opened and closed respectively for opening and closing. The entire curtain is guided vertically laterally within guide rails. In the not fully closed state of a roller shutter in each case the mutually adjacent in the vertical direction diaphragm elements are kept spaced from each other by appropriate flexible bands. In this way, a light incidence can be ensured by gaps between the respective adjacent aperture elements. Only when the shutter is completely closed are all the shutter elements substantially flush with one another, so that in this state it is possible to speak of an essentially complete darkening. A disadvantage of this solution is that the incidence of light only is adjustable within a narrow degree. Furthermore, disadvantageously, the user can cast a view through the columns of the mutually adjacent aperture elements only to a very limited extent. So that the user can throw a complete view to the outside, every time the curtain of the shutter should be rolled up, which is tedious and time-consuming and leads to high wear. Furthermore disadvantageous is a so-called shutter box, within which the curtain is rolled up, very large format and takes up a lot of space. In addition, the shutter box in the upper portion of a window or a door occupies a large area thereof, thereby disadvantageously reducing light entering the inside of the building.

The object of the present invention is to provide a slatted blind which does not have the aforementioned disadvantages.

This object is achieved by a slatted blind comprising: laterally arranged guide rails, a shutter curtain arranged between the guide rails with a plurality of slats, a bottom rail closing the blind cover, and at least one elevator device. Each of the lamellae has a closing diaphragm surface and an upper edge which is angled in the upper segment, the angled upper edge being provided with respective laterally projecting guide pins, via which the lamellas are guided pivotally in the guide rails. The concluding diaphragm surface protrudes laterally at least in sections in such a way over the angled upper edge that projecting sections of the diaphragm surface can be brought into contact with the guide rails and are overlapped at least in sections with the guide rails.

The slat blind according to the present invention allows an almost complete darkening, since the individual slats are brought in the closed state with their diaphragm surfaces laterally with the two guide rails in abutment. In other words, the end sides of the slats overlap with the guide rails, so that, compared to the prior art, in which the lower rail is for example mounted centrally, or the fulcrum of the slats is on the diaphragm surface, no gap is formed, which direct light can come into the building interior. This advantage is achieved by the guide pins are each attached to a portion of the slats, defined here as the upper edge, which is angled relative to the diaphragm surface. As far as no further forces or torques applied to the slats, the individual slats swivel down by gravity and are supported by outer surfaces of the guide rails, and enter the aperture surfaces of the individual slats with their back hereby in Appendix. The top edge may face the aperture surface at an angle in a range of 50 ° 90 °, preferably substantially 70 °. During the raising and lowering of the slats, the lower rail is maintained in a horizontal position, thus also keeping the slat stack in a horizontal position. As soon as the lower rail is in the lowest position, the lower rail can also be swiveled. However, this is not absolutely necessary. The lower rail can also be non-pivotable.

The slat blind according to the invention, when closed, permits a degree of darkening which may be similar to that of a roller shutter, albeit with a very significant advantage over a roller shutter, namely that the slats can easily be tilted at any time so that light enters the interior of the building and the user is able to to look almost undisturbed to the outside. The light / brightness regulation of the slat blinds according to the invention is greatly improved compared to shutters. This is the first time that a very reliable lamella blind has been created, which offers an almost complete darkening and also a very comprehensive light / brightness regulation with simple means.

The slat blind according to the invention also advantageously allows complete privacy from the outside into the building interior. In addition, the slat blind according to the invention has a burglar-resistant appearance because, when closed, it looks like a roller shutter from the outside. In addition, no disturb Beading or bending edges in the visible hanging area the aesthetics.

In one embodiment, vertically adjacent lamellae are overlapped at least in sections. Here are lower edge portions of the diaphragm surfaces in each case on upper edge portions of the diaphragm surface of each below arranged lamellae. With a fully shut down curtain, the overlap of the adjacent fins may be minimal, but still sufficient to prevent the ingress of light.

Preferably, the elevator device includes at least one belt drive or one belt elevator. The belt drive is arranged in the region of the guide rails. Examples of a belt drive are a toothed belt drive, a perforated belt drive, etc. As an alternative to the belt drive, the belt elevator can be provided which raises or lowers the lower rail via elevator belts. The belt elevator can be arranged in any section between the two guide rails.

Preferably, the elevator device contains at least one electrically and / or manually driven drive device. Thus, the fins of the Storenbehangs can be moved up and down by engine power or by hand and optional in their inclination be varied. Exemplary actuators for manually driving the elevator device may include a crank or a lift cord. An electrically drivable drive device may have an electric motor which raises or lowers the blind curtain by engine power. Likewise, the slats can be changed by electric drive in their inclination.

Preferably, in an embodiment in which the elevator device includes the at least one belt drive, the belt drive includes at least one gear coupled to the drive device and at least one belt coupled to the lower rail at the lower end and at the other end at least partially engaged with teeth of the gear. The belt may be a belt, a timing belt, etc. The belt drive is characterized by the fact that it can absorb high forces.

Preferably, the belts are each guided within the guide rails. The straps may be made of a resilient plastic material. In one example, an elastic belt, such as the belt, is passed 180 ° around the gear and thus comes in reliable contact with it. In another example, the belt may be made of an abrasion resistant plastic material.

Preferably, in an embodiment in which the elevator device includes the at least one belt elevator, the belt elevator includes an elevator belt which is coupled at one end to the lower rail and at the other end at least partially by the at least one belt elevator wound or unwound. Thus, the lower rail is reliably lifted and lowered by the belt lifts and associated elevator belts.

Preferably, the slat blind further includes at least one cable lift for winding or unwinding from a rope coupled to the bottom rail. This embodiment is applied to a slat blind in which the elevator device includes the at least one belt drive. By means of the cable lift the lower rail is supported against bending. In one example, the cable drive may be centrally located between the guide rails.

Preferably, the at least one cable drive includes a rotatable roller, which is coupled to the drive device, wherein the cable is coupled at one end to the lower rail and at the other end at least partially wound on the circumference of the roller. The roller can be reversed by an applied torque from an electric motor coupled thereto.

Preferably, the angled upper edges of the slats are each provided with at least one through hole, and the cable or the elevator belt is guided in the course between the cable drive and the lower rail or between the belt elevator and the lower rail through these through holes. A very significant advantage of this embodiment is that the elevator belt or the rope in the closed state of the Storenbehangs, viewed at the same time inclined in the darkening slats, viewed from the outside completely behind the aperture surface of the Storenbehangs. Thus, the elevator belt or rope in the closed state (ie in the shading state) of the Storenbehangs is not exposed to UV radiation. As a result, the elevator belt or the rope is effectively protected against UV radiation and aging processes of the elevator belt or the rope are advantageously greatly delayed, whereby the wear thereof is greatly reduced. As a result, the life of the elevator belt or rope is significantly extended. Another advantage is that, in the fully closed state of the Storenbehangs, the through holes for passing the elevator belt or the rope are not exposed to the outside. As a result, no light can enter through these holes in the interior of the building. Likewise, from the outside no unauthorized view can be thrown into the building interior. Thus, a slat blind is created, which allows a complete darkening and a complete privacy.

Preferably, the cable drive is arranged in a portion of the slat blind, which is offset from the guide rails. In this way, it can be avoided, in particular for long sub-rails, that they will bend in the middle.

Preferably, the offset from the guide rails cable drive is adapted to raise or lower the lower rail at a speed at which the belt drives provided in the guide rails raise or lower the lower rail. As a result, a synchronicity between the drives is advantageously ensured and can be avoided that the lower rail along its entire length is raised or lowered at different speeds and thereby possibly bent.

Preferably, the cable drive offset from the guide rails is arranged to wind the cable in a single layer on the circumference of the roller along a longitudinal direction thereof. This avoids that the rope wound up over each other, which would have the disadvantage that increases by the thereby steadily increasing diameter and the relative speed with which the lower rail, for example, in the middle thereof, is raised. At relative speed, this refers to the speed with which the curtain hanging on the sides (guide rails) is moved. By making the rope single-layered, ie always spiral-shaped, is strung, while it is wound on the roller, can be reliably prevented that the winding diameter will increase. In other words, the rope is always wound and unwound at the same speed, the speed being synchronous with the speed of other elevator devices, for example the belt drives arranged in the region of the guide rails.

Preferably, the slatted blind further comprises at least one turning device for tilt adjustment of at least one of the slats. As a result, the inclination angle of the slats is reliably changed, in a range between a complete dimming (substantially vertical orientation) and a substantially horizontal orientation. Thus, the user, regardless of the position of the shutter blind, quickly and easily regulate the incidence of light and look outside.

Preferably, the lamellar blind further includes a lever mechanism configured to translate a substantially linear motion into a tilting motion for pitch adjustment of the bottom rail. The lower rail is suspended at the end over the angled upper side (eccentrically), or stored. Therefore, compared to a solution in which the lower rail is for example mounted centrally, a greater force must be applied to the lower rail in the free-hanging state in the direction of horizontal orientation. For this purpose, the lever mechanism is provided for power transmission. The lever mechanism may for example be designed as a toggle lever which generates a substantially long linear movement in a relatively short tilting movement with translated high force. The lever mechanism may be any mechanism with high power transmission or torque ratio.

Preferably, the slat blind further comprises a carriage for receiving the lever mechanism, wherein the carriage is at least partially movable together with the lower rail along the guide rail. The lever mechanism thus follows the vertical direction in which the lower rail is moved along the guide rail.

Preferably, the turning device comprises a ball string and a deflection device, which is arranged to deflect the ball string in such a way that substantially parallel courses of them are predeterminedly spaced from one another. As a result, in comparison to previously known solutions, the distance between the vertical courses of the ball string can be increased. This increased clearance allows easier operation to make the blades easier to pivot.

It is expressly understood that the above embodiments are arbitrarily combinable. Only those combinations of variants are excluded, which would lead to contradictions by the combination.

Figuren 1a,b

eine Lamellenstore in einer ersten Ausführungsform im geöffneten Zustand des Storenbehangs in unterschiedlichen Ansichten;

Figuren 2a-c

die Lamellenstore in der ersten Ausführungsform im geschlossenen Zustand des Storenbehangs in unterschiedlichen Ansichten;

Figuren 2d,e

die Lamellenstore in einer zweiten Ausführungsform in unterschiedlichen Ansichten;

Figuren 3a-d

mehrere Seitenansichten der Lamellenstore zur Erläuterung einer Abfolge zum Öffnen eines in der Anfangsstellung geschlossenen Storenbehangs;

Figuren 4a-d

mehrere Detailansichten von einem Hebelmechanismus zum Neigen einer Unterschiene;

Figuren 5a-d

mehrere Detailansichten zur Erläuterung einer Abfolge zum Schwenken der Unterschiene von einer horizontalen Anfangsstellung in eine Schliessstellung;

Figuren 6a-g

mehrere Ansichten eines Seilaufzuges;

Figuren 7a,b

jeweils eine Seitenansicht auf eine Führungsschiene und einen Seilaufzug;

Figuren 8a-c

mehrere Ansichten von einer Wendeeinrichtung;

Figuren 9a-c

mehrere Ansichten von einer Wendeeinrichtung; und

Figuren 10a-d

mehrere Ansichten einer Lamelle.

In the following, the present invention will be explained with reference to exemplary embodiments illustrated in drawings. Showing:

FIGS. 1a, b

a slat blind in a first embodiment in the opened state of the blind curtain in different views;

Figures 2a-c

the lamellar store in the first embodiment in the closed state of the Storenbehangs in different views;

FIGS. 2d, e

the slat blind in a second embodiment in different views;

FIGS. 3a-d

a plurality of side views of the slat blind for explaining a sequence for opening a closed in the initial position Storenbehangs;

FIGS. 4a-d

a plurality of detail views of a lever mechanism for tilting a bottom rail;

FIGS. 5a-d

several detailed views for explaining a sequence for pivoting the lower rail of a horizontal initial position in a closed position;

Figures 6a-g

several views of a cable lift;

FIGS. 7a, b

in each case a side view of a guide rail and a cable lift;

Figures 8a-c

several views of a turning device;

Figures 9a-c

several views of a turning device; and

FIGS. 10a-d

several views of a lamella.

FIGS. 1a, b each show a slat blind 10 in a first embodiment of the invention in different views. The louvered blind 10 includes two guide rails 12 (for illustrative purposes, only one guide rail is shown) for vertically guiding a blind shade 14 disposed between the guide rails 12, which in turn includes a plurality of louvers 16'-16 '' FIGS. 1a, b the lamellar blind 10 is shown in the opened state of the Storenbehangs 14. Although only three fins 16'-16 "'are shown in the drawing, a typical finned shutter 10 contains significantly more fins.

The Storenbehang 14 is completed below a lower rail 18. The lower rail 18 is shown in FIG Example centered on a hereby connected rope 20, so that the bottom rail 18 will not sag. The cable 20 is in this case wound on the circumference of a roller (not shown) by a cable lift 22 or unwound. The cable lift 22 thus prevents the (long) bottom rail 18 from sagging or bending in the middle, in particular in the case of very wide slat blinds 10, as described in more detail below.

The bottom rail 18 is moved up and down by means of a belt drive 24 which is integrated in the guide rail 12 (described in more detail below). When moving up the lower rail 18, slats positioned one above the other are picked up sequentially and moved further upwards with the lower rail 18 and slats already received until this slat also accommodates a previously higher-level slat, and so on (generally known as external venetian blind principle). The package of the slats and the bottom rail 18 itself can take a high overall weight, which is reliably absorbed by the belt drive 24 on the sides. The belt drive 24 includes a gear 26 which is drivable for rotation. The gear 26 is engaged with a belt 28 which is guided within the guide rail 12. The belt 28 is in turn coupled to the lower rail 18 at the lower end. During a rotation of the gear 26 thus the rotational movement in a linear movement of the belt 28 for Lifting or lowering the bottom rail 18 transferred. In the example shown, the belt 28 is formed as a perforated belt.

The louvered blind 10 also includes two turning means 30 ', 30 "for tilt adjustment of the louvers 16'-16"', as explained in more detail below. For this purpose, at least the individual lamellas 16'-16 "'are coupled in sections along their longitudinal sides, at respectively opposite points, with cords 32a', 32b 'and 32a", 32b " an angled upper edge. The aperture surfaces of the individual lamellae 16'-16 "'in this case form in their entirety the lamella-stator outer surface facing towards the outside, as in FIG Figures 2a-c shown, which represent the lamellar blind 10 according to the first embodiment in the closed state of the Storenbehangs 14. The angled upper edge is edged inwards and encloses an angle with the respective diaphragm surface in a range of 50 ° to 90 °, essentially 70 °. The individual upper edges each have laterally projecting guide pins 34'-34 "', and the individual disks 16'-16"' are guided pivotably and vertically adjustably in the guide rails 12 via their guide pins 34'-34 " in each case a vertically extending recess.

According to the invention, the diaphragm surface protrudes laterally at least in sections over the angled upper edge (see in particular, in particular FIGS. 2b-e ). In this case, the diaphragm surfaces protrude in such a way that their rear surfaces can each be brought into contact with the guide rails 12 (see in particular FIG FIGS. 2b, c ). In other words, the respective laterally projecting sections of the diaphragm surfaces thus overlap with sections of the respective assigned guide rail 12. As a result of this overlap, no light is incident between the slats 16 '- 16 "' and the lateral guide rails 12 into the interior of the building State of the art, in which a gap between the slats 16'-16 "'and the guide rails 12 sets, a total of significantly higher degree of darkening of the slatted blind 10 is thus created.

In FIGS. 2d, e in each case the slat blind 10 is shown in a second embodiment. In this second embodiment, the lower rail 18 is moved up or down via two belt elevators 35 ', 35 ", for which winding belts 36', 36", which are each fixed to the lower rail 18, are wound up by the respectively associated belt elevator 35 ', 35 " In the illustrated embodiment, the turning devices 30 ', 30 "and belt lifts 35', 35" are each integrated into one unit, although not shown, the turning devices 30 ', 30 "and belt lifts 35', 35" may be separate Regardless of whether integrated together or separately, more than two turning devices can also be used 30 ', 30 "and belt lifts 35', 35" may be provided. In the in FIGS. 2d, e As shown embodiment, the lower rail 18 is not pivotally mounted. In this case, only the slats 16'-16 "'are pivotable.

As in FIGS. 2b . e shown, the upper edge of each of the slats 16'-16 "'with at least one through hole 37, also referred to as lamella punching, provided (in FIG. 2b for illustrative reasons only with lamella 16 'to recognize). The through hole 37 serves to pass through the cable 20 (see the in Figures 2a-c shown first embodiment) or the elevator belt 36'-36 "(see the in FIGS. 2d, e shown second embodiment). In contrast to the prior art, the cable runs 20 or extend the elevator belts 36'-36 "thus (in the closed state of the shutter shade 14) entirely behind the diaphragm surface.

This results in the advantage that, in the closed state of the blind 14, there are no through holes for guiding the cable 20 or winding band 36 ', 36 "on the outside, through which through holes light can come in. In other words, falls in the area of the cable lift 22 or of the belt elevator 35 ', 35 "no light into the interior of the building. Thus, the slat blind 10 allows for complete dimming, as previously unattained in the art.

Further advantageously, the cable 20 runs (see Figures 2a-c ) or the elevator belts 36 ', 36 "(see FIG FIGS. 2d, e ) in the closed state of the blind shade 14 completely in the inner region of the lamellae 16'-16 "'and is thus protected against UV exposure Thus, the rope 20 or the elevator belts 36', 36" are protected against premature wear , Compared to the prior art, it is thus reliably prevented that the cable 20 will tear prematurely or the elevator belts 36 ', 36 "will rip prematurely.

FIGS. 3a-d each show a side view of the pivotable bottom rail 18 to illustrate a lever mechanism 38 for assisting the erection of the lower rail 18 of the substantially vertical orientation (see FIG. 3a ) in a substantially horizontal orientation (see procedures in FIGS. 3b-d ). In FIGS. 4a-d and 5a-d For example, detailed views of the lever mechanism 38 are shown. Since the lower rail 18 end, ie eccentrically, on their guide pin (see, eg FIG. 1b ) is suspended, compared to a solution in which a bottom rail 18 is mounted substantially centrally, an increased force must be applied to erect the bottom rail 18. Here, the lever mechanism 38, which, like the principle of a toggle lever, the lower rail 18 is transferred to the horizontal position (and vice versa in the vertical position). A boom 40 or lever arm of the lever mechanism 38 engages this hinged a central portion 42 of the lower rail 18 in order to apply according to the principle of an extended lever arm an increased pressure force for erecting the lower rail 18. The lever mechanism 38 is received in a carriage 43, via which the lever mechanism 38 together with the lower rail 18 along the guide rail 12 is movable.

FIGS. 4a-d show the lever mechanism 38 in each case in a detailed view. FIGS. 5a-d show views of the lever mechanism 38 in a sequence for transferring the lower rail 18 from the horizontal orientation (see FIG. 5a ) in the substantially vertical orientation (see FIG. 5d ).

Figures 6a-g show the previously explained cable drive 22 in several explanatory views. As mentioned above, the cable drive 22 is used to prevent sagging of a particular long bottom rail (see, eg FIG. 1a ). The cable drive 22 includes a roller 44 for rolling up and unrolling the cable 20 (see FIGS. 6a, d ). The roller 44 serves to receive the cable 20 over its circumference. Here, the cable 20 is guided by a registered in the housing 46 of the cable drive 22 opening 48. The cable drive 22 is capable of wrapping the cable 20 in a single layer, that is spirally wound on the circumference of the roller 44 along a longitudinal direction thereof or unwind. For this purpose, the roller 44 is displaced in the said longitudinal direction. For longitudinal displacement is the Circumference of the roller 44 provided with an external thread, which is in engagement with an internally threaded portion 50, which in turn is statically fixed to the housing 46 of the cable drive 22 and hereby integrally formed. During the rotation of the roller 44, this is thus advanced by threading to the left or to the right. With the rotation of the roller 44, the cable 20 is thus simultaneously wound or unwound on the circumference of the roller 44 and this also strung as a single layer by the longitudinal displacement of the roller. Thus, it is avoided that the rope 20 is wound in several layers - along with a steadily increasing diameter - which in turn, at a constant speed, the speed increases, with which the cable 20 is wound up. In other words, the cable drive 22 allows winding and unwinding of the cable 20 at a constant speed, or at a speed which is always the same (synchronous) with the speed of other elevator devices (eg, the belt drives installed inside the guide rails (see, eg FIG. 1b )). The cable drive 22 thus allows turns of constant diameter.

FIG. 6d illustrates an example of the roller 44, which contains a sectionally spiral cable receptacle. For this purpose, the roller 44 includes a spiral winding section 52 having a spiraling radius. This makes it possible that the rope 20, starting from the closed state of the lamellar store, at the first Winding is wound with a lower cable winding speed. Thus, the possibility is created by a structurally simple and reliable measure that an overflow is minimized.

FIGS. 7a, b illustrate the previously explained principle of the cable drive 22 in each case a detailed view. Here, the roller 44 is formed with the spiral winding portion 52 having a spiral increasing radius.

Figures 8a-c illustrate detailed views of the turning device 30 '(see also FIG. 1b ). The turning device 30 'contains, as in the FIG. 8b illustrates a deflection device 54, via which a ball string 56 of the turning device 30 'at one end advantageously can be deflected such that the two vertically and mutually parallel portions of the deflected ball string 56 are largely spaced apart as far as possible. Here, the operation is facilitated. Figures 9a-c illustrate the principle of the deflection of the ball string 56 in further detail views.

The FIGS. 10a-d show an embodiment of a lamella, as for example, but not exclusively, can be used in one of the previously described slatted blinds. The lamella 116 is subdivided into an aperture surface 120 and an upper edge 130. In terms of the course of the diaphragm surface 120, the upper edge 130 is angled and can be folded inwards or crimped inwards. The upper edge 130 is preferably angled at an angle α of 50 ° to 80 °, in particular 60 ° to 70 °, such as α = 66 °, with respect to the diaphragm surface 120. The diaphragm surface 120 itself comprises three sections, a first diaphragm surface section 121 adjoining the upper edge 130, a terminal third diaphragm surface section 123 and a second diaphragm surface section 122 lying between the first diaphragm surface section 121 and the third diaphragm surface section 123. The third diaphragm surface section 123 can likewise be directed inward be edged or crimped inward. The upper edge 130 comprises two sections, a terminal first upper edge section 131 and a second upper edge section 132 adjoining the diaphragm surface 120. The subdivision of the sections is given by changes in the course of the blade, in particular by bending or angulation. If the angling of the upper edge 130 with respect to its course relative to the diaphragm surface 120 is referred to as inwardly angled, then the subdivision between the third and second diaphragm surface portions 123, 122 is characterized by an inner angle, the subdivision between the second and first diaphragm surface portions 122, 121 characterized by an external angle and the transition aperture surface 120 to upper edge 130, and thus the subdivision between the first aperture surface portion 121 and the second upper edge portion 132, characterized by an inner angle.

First and second upper edge section 131, 132, however, are again characterized by an external angle. Inside and outside angulation thus alternate in the course of the lamella cross section, starting from the free end of the diaphragm surface 120 with an internal angle.

In FIG. 10b is the interaction of three, as in FIG. 10a It can be seen that, in particular, the course of the first and second diaphragm surface portions 121, 122 of the one blade 116 "which forms an S-bend creates space for receiving the end shown here in a flared manner the third diaphragm surface portion of the above-arranged blade 116 '(see dashed circle). Thus, an optically flat hanging surface is provided, which is indicated by the vertical, dashed line. Also shown is the area 155, in which there are preferably through holes for passing through ropes and / or elevator belts. Decisive for a good darkening is that the perforation of a lamella 116 'in the closed state is covered by the diaphragm surface of the lamella 116 arranged above it. The line 160 marks the boundary of the overlap of the blades 116 and 116 '. The perforations are preferably located on a straight line, in particular on the axis of rotation of the blade 116 'defined by the pivot 135. The area 155 and the pivot point 135 are shown for the sake of clarity only for the lamella 116 '.

In FIG. 10c to see a slat 116 in different views. The bottom view shows a cross section of the blade 116 in the closed and thus substantially vertical position, the middle view shows a cross section of the blade 116 in an open and thus substantially horizontal position, and the top view shows a top view of the blade 116. In the A good view of the plan view reveals the laterally projecting guide pin 134, whose cylinder axis forms the pivot point 135. Marked in the FIG. 10c are various distances such as the depth t of the sipe, the distance X1 of the horizontal sipe from the fulcrum 135 of the sipe to the end of the protruding portion 125 of the diaphragm surface 120 which can be brought into abutment with the guide rail, the distance X2 of the vertical sipe Fulcrum 135 of the blade to the end of the protruding portion 125 of the diaphragm surface 120, and the distance X3 from the end of the blade to the end of the protruding portion 125 of the diaphragm surface 120. The distances X1 and X2 are in a range of 10 to 20 mm, for example For example, 14 mm, the width b is for example in a range of 60 to 80 mm, such as 69 mm.

The protruding portion 125 may be both abutted with a guide rail and overlapped with the guide rail. Overlapping is for example made possible by the width b _{A of} the projecting portion 125 is selected so that this width b _A at least partially surmounted in the assembled state of a guide rail part 1341 of the guide pin 134, for example, by the width b _z .

FIG. 10d shows two views of a blade 116. The upper view is a cross-section, the lower view is a plan view. In particular, this lower view serves to illustrate where the aperture surface portion 121, 122, 123 and upper edge portion 131, 132 shown in cross-section can be seen in plan view of the blade. It can also be seen where, in the cross-section of the lamella, the projecting portion 125 of the diaphragm surface 120 is located, which can be brought into contact with the guide rail. If you set eg the FIGS. 10b and 10d With reference to each other, it can be seen that the third diaphragm surface portion 123 of a blade 116 comes to rest on a blade 116 'disposed thereunder so that a first portion of the projecting portion 125 of the blade 116' is also covered. For better identification, the line 160, which indicates the limit of the overlap of the lamellae 116 and 116 ', also in the FIG. 10d transfer.

• Eine Lamelle 116, aufweisend eine abschliessende Blendenfläche 120 und eine hierzu im oberen Abschnitt angewinkelte Oberkante 130, wobei:
  • die abschliessende Blendenfläche 120 wenigstens abschnittsweise derart über die abgewinkelte Oberkante 130 seitlich vorragt, dass der vorragende Abschnitt (125) der Blendenfläche (120) mit Führungsschienen in Anlage bringbar ist und wenigstens abschnittsweise mit seitlichen Führungsschienen überlappt ist;
  die Lamelle in einen ersten Blendenflächenabschnitt 121, einen zweiten Blendenflächenabschnitt 122, einen dritten Blendenflächenabschnitt 123, einen ersten Oberkantenabschnitt 131 und einen zweiten Oberkantenabschnitt 132 unterteilt ist, insbesondere durch Winkelungen, insbesondere durch alternierende Innen-Winkelungen und Aussen-Winkelungen.

Can summarize the in the FIGS. 10a-d shown lamella are described as follows:

• A lamella 116, having a closing aperture surface 120 and an upper edge 130 angled in the upper portion, wherein:
  • the closing aperture surface 120 projects laterally at least in sections over the angled upper edge 130 in such a way that the projecting portion (125) of the diaphragm surface (120) with guide rails in Plant can be brought and at least partially overlapped with lateral guide rails;
  the lamella is subdivided into a first diaphragm surface section 121, a second diaphragm surface section 122, a third diaphragm surface section 123, a first upper edge section 131 and a second upper edge section 132, in particular by angulations, in particular by alternating internal angulations and external angulations.

Claims (15)

Slat blind (10), comprising: - laterally arranged guide rails (12), - a between the guide rails (12) arranged Storenbehang (14) having a plurality of fins (16'-16 "), - A the Storenbehang (14) final lower rail (18), and at least one elevator device (24; 35 ', 35 "), wherein the lamellae (16'-16 "') each have a closing aperture surface and an upper edge angled in the upper portion, the angled upper edge being provided with respective laterally projecting guide pins (34'-34"') over which the lamellae ( 16'-16 "') are pivotally guided in the guide rails (12), and
wherein the closing panel surface protrudes laterally at least in sections over the angled top edge such that projecting sections of the panel surface can be brought into contact with the guide rails (12) and overlapped at least in sections with the lateral guide rails (12). Slat blind (10) according to claim 1, wherein mutually vertically adjacent slats (16'-16 "') are at least partially overlapped. Slat blind (10) according to claim 1 or 2, wherein the elevator device (24; 35 ', 35 ") comprises at least one belt drive (24) or belt elevator (35', 35") and / or wherein the elevator device (24; , 35 ") contains at least one electrically and / or manually driven drive device. A louvered blind (10) according to claim 3, wherein the at least one belt drive (24) comprises at least one gear (26) coupled to the drive device and at least one belt (28), in particular a belt (12) guided inside the guide rail (12). 28), wherein the belt (28) at the lower end to the lower rail (18) is coupled and at least partially engaged with teeth of the gear (26) at the other end. Slat blind (10) according to one of claims 3 to 4, further comprising at least one elevator belt (36 ', 36 ") which is coupled at one end to the lower rail (18) and at least partially by the at least one belt lift (35 ', 35 ") can be wound or unwound. Slat blind (10) according to one of the preceding claims, further comprising at least one cable lift (22) for winding or unwinding a rope (20) coupled to the bottom rail (18). The finned blind (10) of claim 6, wherein the at least one cable drive (22) includes a reversible roller (44) coupled to the drive device, the cable (20) being coupled at one end to the lower rail (18) and at further end at least partially on the circumference of the roller (44) is wound up. Slat blind (10) according to one of claims 5 to 7, wherein the angled upper edges of the slats (16'-16 "') are each provided with at least one through-bore (37), and wherein the cable (20) or the elevator belt (36'; , 36 ") in the course between the cable lift (20) and the lower rail (18) or between the belt elevator (35 ', 35") and the lower rail (18) through these through holes (37) is guided. A slat blind (10) according to any one of claims 6 to 8, wherein the cable drive (22) is disposed in a portion of the slat blind (10) offset from the guide rails (12). Slat blind (10) according to claim 9, wherein the of the guide rails (12) offset cable drive (22) is adapted to the lower rail (18) with a Raise or lower speed with which in the guide rails (12) equipped belt drives (24) raise the lower rail (18) or lower. A sipe gate (10) according to claim 9 or 10, wherein the cable drive (22) offset from the guide rails (12) is arranged to wind the cable (20) in a single layer on the circumference of the roller (44) along a longitudinal direction thereof. Slat blind (10) according to one of the preceding claims, further comprising at least one turning device (30 ', 30 ") for tilt adjustment of at least one of the slats (16'-16"'). The sipe gate (10) of claim 12, further comprising at least one lever mechanism (38) configured to translate a substantially linear motion into a tilting movement for pitch adjustment of the bottom rail (18), preferably further comprising at least one carriage (43) for receiving the lever mechanism (38), wherein the carriage (43) at least in sections with the lower rail (18) along the guide rail (12) is movable. A sipe gate (10) according to any one of claims 11 to 13, wherein said turning means (30 ', 30 ") includes a ball string (56) and a baffle (54) which is arranged to deflect the ball string (56) such that substantially parallel courses of which are spaced apart from each other predetermined. A lamella (116), comprising a closing diaphragm surface (120) and an upper edge (130) angled in the upper section, the closing diaphragm surface (120) projecting laterally at least in sections over the angled upper edge (130) such that the projecting portion 125) of the diaphragm surface (120) is engageable with guide rails and at least partially overlapped with lateral guide rails and wherein the lamella (116) in a first diaphragm surface portion (121), a second diaphragm surface portion (122), a third diaphragm surface portion (123), a first upper edge portion (131) and a second upper edge portion (132) is divided, in particular by angulations, preferably by alternating internal angulations and external angulations.

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