EP1508664A1 - Method of independent adjustment of the lamellae of two groups of lamellae of a venetian blind and venetian blind - Google Patents

Abstract

A window has an interior Venetian shutter blind with a series of horizontal slats sub-divided into upper and lower groups. The lower group has no direct link to the outermost side-straps regulating the top group angle of presentation. The lowest slat in the upper group and the uppermost slat in the lower group are linked by load-bearing straps and the innermost pitch regulation straps (9). The pitch angle of each group of slats is individually regulated.

Description

The invention relates to a method according to The preamble of claim 1. Subject is further a slat blind according to the preamble of the claim 5th

Slat blinds make it possible to adjust the incidence of light in a room by pivoting the individual slats. In a known slatted blinds arranged parallel at intervals, a curtain forming slats are connected to each other at the inner edges and at the outer edges by vertically extending loop straps. Furthermore, the lowermost slat, which functions as the end rail, is usually more stable and heavier and hangs on textile or elevator tapes which penetrate the slats through corresponding openings provided therein. The Texbänder are connected in the known slat blind only with the end rail and serve to pull up the latter to stack on the individual slats and wear. The slats of most known slats are at the same inclination angle, ie the distances between the slats are equal on both sides.
There is also a slat blind known in which the slats of the curtain are divided into two or more groups and the slats of Behangabschnitte not the same inclination. It is also known to make the inclination of the slats by continuous enlargement of the distances on one side of the slats over the entire Behanghöhe different, ie, for example, in the lower part of the slats to tilt more than above, to make the light access as large as possible and down in the bottom Range of jobs, such as screen workplaces, to reduce more.
These known slat blinds partially meet the requirements to allow more light to pass through than below. However, a setting is only possible as a whole, ie when more is closed down, so close the upper slats more than desired or necessary.
It is also known to control two lamellae groups independently of each other, ie to combine two turning devices, one of which controls the upper hanging group and the other the lower hanging group. This device probably fulfills the requirements placed on it; but it is technically complicated because two drives are necessary. It is correspondingly expensive. It is also known, with an elevator shaft and attached Wendewippen for the upper plate group and the lower plate group to adjust independently. In this device, two pairs of bands run in the area of the upper lamellae group, namely those which are connected to the upper lamella group and, in parallel, those which are connected to the lower lamella group. The two rocker groups, which control the two turning belt groups, must be mechanically connected to one another and engage or disengage from corresponding directions of rotation of the drives. Such drives are expensive and accordingly prone to malfunction.

Object of the present invention is to provide a Method for simple and independent setting of the Inclinations of the slats of two making a curtain Lamella groups and a lamellar store for implementation of the procedure.

This object is achieved by a method according to the features of claim 1 and a slat blind for carrying out the method according to claim 5. The inventive method makes it possible to set both slats groups or their inclination independently with a conventional elevator shaft and rocker arrangement. The slat blind according to the invention can be operated by a single drive, be it an electric or manual crank drive, and all driving and turning functions can be performed with an UP / DOWN button.
The structure of the slat blind is extremely simple, since for turning, ie adjusting the inclination of the slats in the underlying slat group, a single there acting return means, such as a spring or a weight is sufficient.

Figur 1

eine Ansicht eines Lamellenbehangs; untere Lamellengruppe gestapelt, obere Lamellengruppe offen,

Figur 2

einen Vertikalschnitt längs Linie II-II in Figur 1,

Figur 3

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (Wendebänder vollständig gestreckt; Verfahrbänder tragen noch die Endschiene),

Figur 4

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (Verfahrbänder weiter abgesenkt, Lamellen des unteren Behangs leicht geneigt, Endschiene immer noch von den Verfahrbändern getragen),

Figur 5

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (Verfahrbänder weiter abgesenkt, Lamellen des unteren Behangs weiter geneigt),

Figur 6

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (Verfahrband vollständig nach unten ausgefahren, unterer Behang geschlossen, Endschiene hängt an unterster Lamelle),

Figur 7

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (oberer Behang teilweise geschlossen) und

Figur 8

einen Vertikalschnitt durch den Behang am Ende des Absenkvorgangs (oberer Behang durch Wendevorrichtung vollständig geschlossen),

Figur 9

einen vergrössert dargestellten Ausschnitt C in Figur 3.

Reference to an illustrated embodiment, the invention is explained in detail. Show it

FIG. 1

a view of a Lamellenbehangs; lower lamella group stacked, upper lamella group open,

FIG. 2

a vertical section along line II-II in Figure 1,

FIG. 3

a vertical section through the curtain at the end of the lowering process (turning tapes completely stretched, traversing belts still carry the end rail),

FIG. 4

a vertical section through the curtain at the end of the lowering process (conveyor belts further lowered, slats of the lower curtain slightly inclined, end rail still supported by the conveyor belts),

FIG. 5

a vertical section through the curtain at the end of the lowering process (moving belts further lowered, slats of the lower curtain tilted further),

FIG. 6

a vertical section through the curtain at the end of the lowering process (moving conveyor fully extended downwards, lower curtain closed, end rail attached to the bottom slat),

FIG. 7

a vertical section through the curtain at the end of Absenkvorgangs (upper curtain partially closed) and

FIG. 8

a vertical section through the curtain at the end of the lowering process (upper curtain completely closed by turning device),

FIG. 9

an enlarged detail C in Figure 3.

The schematic front view shown in FIG of a curtain 1, shows a plurality of fins 3, which by means of Verfahrbändern 5 on an elevator shaft. 7 are hung up. The slats 3 are further through Turning tapes 9 with a rocking device (in detail not shown) connected to the winding shaft 7.

The curtain 1 shown in the figures comprises at least one upper drapery part, briefly drapery A and a lower drapery part, briefly drapery B. The upper drapery A, shown here with four slats 3, hangs on the two turning belts 9,10a, 10b and is with these through known in the art fasteners articulated. The Verfahrbänder 5, which on the Elevator shaft 7 are wound up, penetrate both the Slats 3 of the upper curtain A and the slats. 3 the lower curtain B in suitably trained Passages or punches and are not with the Slats 3 connected. The lower ends of the example two Verfahrbänder 5 are with a final rail 11th trained lamella, which below the lowest lying blade 3 of the lower curtain B is arranged, firmly connected. At the upper end of the lower curtain B is a helical fin 13, preferably a lamella with higher strength, used. This one is with one Carrier lamella 15, which is the last lamella of the upper Behangs A, connected by carrier tapes 17.

The lying on the outside of the window opening 19 Turning tapes 10a, 10b of the upper curtain A and the lower one Hang B are not connected; i.e. the Support plate 15 and the spiral blade 13 are on the Outside ("out") by no connection means connected, which influence the slats 3 each other can. Alternatively, the outer turning tapes 10a, 10b between the carrier lamella 15 and the helical lamella 13 have a double length or a stretchable Be made of material. The latter serves to the both blinds A and B from the outside visually as a unit to appear. The turning tapes 9, which on the Inside ("in") are, with all slats 3 of the upper curtain A and the lower curtain B preferably connected at regular intervals. It is further on the end rail 11 no connection of outside turning tapes 10a, 10b before. On the other hand are the turning tapes 10b of the lower curtain B directly or indirectly connected to the end rail 11. The latter is articulated by a hinge 21 or other suitable means with the lowest slat 3 of the lower curtain B connected.

At the helical fin 13 accesses a return means for Swiveling the latter in the direction of the arrow P, the the spiral blade 13 when pulling up and lowering the Behangs 1 brings about horizontal position (Fig. 9). As a return means can be a leg spring 23 with the first leg 25 on the helical fin 13 and with the second leg 27 on the carrier tape 17 or in the Fixed vertical guides. Alternatively, at the Spiral lamella 13 a weight 29, e.g. in the form of one Metal rod, be attached. Both funds are in the Location, the lamella 3 with a predetermined force around the to pivot lower pivot point 31 of the carrier tape 17 (Figure 9).

Subsequently, the movements of the curtain 1 on the basis of Figures 1 to 8 explained. Starting from the not illustrated "high" position of the curtain 1, if all fins 3 are stacked on the end rail 11 and the opening cross section of the wall opening completely is uncovered, is by unwinding the Verfahrbänder. 5 the end rail 11 with the lying on it and on it lowered load-bearing disc pack. A slat 3 after the other dissolves at the top of the underlying, as soon as the reversing tapes acting on the longitudinal edges 9 are curious.

In FIGS. 1 and 2, four fins 3 are of the now lifted at the top lying Wendelamelle 13 and hang the turning belts 9,10a, 10b in the example shown in the essentially aligned horizontally, so that the optimal Light is possible. Upon further unwinding the Verfahrbänder 5 also loosens the Wendelamelle 13. Once the lowest slat 3 'of the lower curtain B completely is hung on the turning tapes 9,10b and not more on the end rail 11 rests (Figure 3), the begins End rail 11 in a clockwise direction about the joint 21 to panning and moving further down. The superimposed translational motion results following reasons. Because the conveyor belt 5 continues to down moves the end rail 11 via the joint 21 and the turning tapes 10b on the slats 3 of the lower curtain B and swing the latter counterclockwise. The upper Behang A is not affected by the pivoting movement, because the turning tapes 10a (in the figures on the left) of the lower Behangs B not with the turning tapes 10b of the upper A blind are connected. The weight of the end rail 11th thus pivots the slats 3 against the force of Return means (spring 23 or weight 29) down (see Figures 4 and 5), and that until the Slats 3 of the lower curtain B from the initial approximately horizontal position (Figure 4) in the vertical Closed position (Figure 6) have pivoted.

The inclination angle shown in Figures 4 to 6 the slats 3 of the lower curtain B can be through Pulling up the conveyor belts 5 between "closed" (Figures 6 to 8) and "open" (Figure 3) as desired adjust without the horizontal position of the Slats 3 of the upper curtain A changed. A change in the angle of inclination of the slats 3 of the upper curtain A can be like conventional slat blinds done by the rockers on the winding shaft 7. FIG. 8 shows the curtain 1 in both the upper and the lower Area completely closed; in FIG. 7, the Slats 3 of the upper curtain A by about 45 ° with respect to Horizontal swiveled.

When booting the return means (spring 23 or Weight 29) to the spiral blade 13 successively in the horizontal position to swing back as long as the outside turning tapes 10b still by the load of End rail 11 are pulled down. The downstairs acting force F (Figure 4) on the outer turning tapes 10b Stop as soon as the end rail 11, the horizontal position has reached and the lamellae arranged above it 3 stack on the end rail 11.

In a simplified, not shown embodiment The invention can dispense with the return means become. In this embodiment, the slats are 3 of the lower curtain B always closed. Once she's off the stack They are lifted off by a carrier tape from the bearing lamella to the inner turning band of the lower one Kept hanging and turned around.

Legend

A

upper curtain

B

lower curtain

1

curtain

3

slats

5

Verfahrbänder

7

Elevator shaft

9

Turning tapes inside

10

Turning tapes outside

11

End rail

13

turning vane

15

support slat

17

carrier tapes

19

window opening

21

joint

23

feather

25

first arm

27

second arm

29

Weight

31

lower point of articulation

Claims (8)

Method for independently setting the angles of inclination of the slats (3) of at least two curtain parts (A, B) forming a curtain, comprising an elevator shaft (7) and conveyor belts (5) and turning belts (9, 10) attached thereto, characterized in that the adjustment the inclination of the slats (3) of the lower curtain (B) by one of the slats (3,3 ', 11) of the lower curtain (B) is controlled. A method according to claim 1, characterized in that the end rail (11) acting bottom slat of the lower curtain (B) controls the inclination of the remaining slats (3) of the lower curtain (B). A method according to claim 2, characterized in that the end rail (11) of the lower curtain (B) is pivotally connected to the overlying blade (3 ') and / or the turning belts (10) of the lower curtain (B). A method according to claim 3, characterized in that the slats (3,3 ') of the lower curtain (B) via the articulated connection (21) pulled down and pivoted. Slat blind with a plurality of mutually connected by turning tapes, the curtain forming lamellae and designed as a bottom rail end rail, with Verfahrbändern which penetrate the blades (3) in the turning axis and with the end rail (15), further comprising an elevator shaft (7 ) with Wendemitteln, to which the turning tapes (9) are fastened, characterized in that the curtain (1) in an upper curtain (A) and a lower curtain (B) is divided, the upper curtain (A) and the lower Curtain (B) on the window opening facing side ("in") by turning tapes (9) are connected and that on the outside facing side ("out"), the slats (3) of the upper curtain (A) and the lower curtain ( B) have independent turning tapes (10a and 10b). Slat blind according to claim 5, characterized in that the end rail (11) at the lower end of the lower curtain (B) on the outside hinged to the lowermost blade (3 ') and is connected to the lower end of the Verfahrbänder (5). Slat blind according to claim 6, characterized in that the articulated connection between the end rail (11) and the bottom slat (3 ') by a hinge (21). Slat blind according to one of Claims 5 to 7, characterized in that the uppermost slat of the lower curtain (B) which acts as the spiral slat (13) and the lowermost slat of the upper curtain (A) which acts as the carrier slat (15) are pivoted through the center the lamellae (3) of the lower curtain (B) allowing carrier bands (17) are hinged together.

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