DE29701261U1 - Vertical blinds - Google Patents

Description

&igr; The invention relates to a vertical blind with a fixed guide

^: :'!' rail with rotatable and movable slats which are connected to each other in the upper area facing the guide rail by two cords and can be moved by a rotatable and movable hand rod.

; In a vertical blind known from DE 32 15 943 A1, the slats are

connected by two cords and can be rotated and moved using a flat bracket in the guide rail. Using the hand rod, they can be moved in the guide rail to clear the window surface or to rotate them from a position parallel to the window pane to a position at right angles to it if they extend over the window area. The hand rod is pivotally connected to the outside of a bracket between two flanges. To move the slats, the hand rod is grasped and this bracket is moved. When the slats are pushed together, this bracket lies against the next bracket and this again against the next, so that the entire slat package is pushed forward. When pulling apart, the first bracket is pulled with the hand rod so that the others follow over the connection of the cords. In this design, the individual slats are freely movable.

LOESENBEGK &Agr; STRACKE -PATENT ATTORNEYS - BIELEFELD

24 January 1997

Friedrich Richter

Description Sheet 2

movably suspended. This can cause them to adjust themselves unintentionally, for example due to a draft. This is extremely disadvantageous, since it can happen, for example, that they move from a position parallel to the window pane to an angle, so that the privacy or sun protection is at least partially eliminated.

The invention is based on the task of creating a structurally simple solution while maintaining the simple and smooth suspension of the slats, but in which the slats always maintain their position in the closed and open positions, even when subject to external forces or other circumstances.

The task is solved by a fixing strip that extends essentially over the width of the vertical blind, which is mounted in the upper area at a small distance below the guide rail in relation to the height of the slats so that it can pivot freely about a horizontal axis in such a way that when the slats are in the closed position it touches them linearly or is at a small distance from them, and that when the slats are in the open position it rests on the upper edges.

The fixing strip hangs freely downwards when the slats are closed, whereby its own weight can press slightly against the slats so that they remain in the closed position, even when the longitudinal tension in the cords is no longer effective. Even if the fixing strip is mounted in such a way that it does not touch the slats when they are closed, the slats cannot automatically twist into a position that cancels the effect. When the slats are opened by turning the hand rod, the upper areas of the slats push the fixing strip upwards until it rests on their upper end edges and fixes the open position of the slats with its weight. In this position, the slats can even be at an angle to the window pane. The fixing strip also has a decorative effect, as the elements required to hang the slats are covered. In addition, light entering this area is completely avoided.

It is also advantageous that the commonly used curtain rails with one or more grooves or curtain rods or ropes designed as round rods can be used to hang the slats. This even makes it possible to replace existing curtains or drapes with the vertical blinds according to the invention without having to change the guide rails.

24 January 1997

Friedrich Richter Description Sheet 3

According to a preferred embodiment, the fixing strip is formed from a profile rail with a cross-section deviating from a flat cross-section, whereby the profile rail preferably has an angular cross-section. Due to the cross-section deviating from the flat shape, the fixing strip can be mounted in the ^simplest way so that in the closed position of the slats it presses with one edge lightly against the slats or is at the said small distance from them.

;■ ;! This is because the fixing bar is freely mounted, so that the center of gravity of the

;■■■. cross-section is perpendicular to the bearing. The angular cross-section

'■■. then offers the advantage that the outer edge in the connection area of the two

10 legs against the slats. The angle profile is conveniently a

;,',,,' unequal-leg profile, with the shorter leg being the slats and the guide

"; ' the profile rail is facing away from the closed position of the slats. The profile rail then adjusts itself in the closed position of the slats so that the longer

■.; . leg to the vertical a small acute angle!

: N5 , For easy suspension of each individual slat, it is provided that this is designed as a pocket at the ^! i ]| 'i; upper end area, into which a dimensionally stable slat carrier '"■!"■ is inserted. This slat carrier extends essentially over the entire

; ■ the entire width of each slat. It can be, for example, plate-shaped and made of a

^: _r plastic. This dimensionally stable slat carrier also ensures

i2o is sufficient for the desired pivoting movement to take place, as the slats no longer give way in the upper areas. In addition, the slats do not deform when the fixing strip rests on the upper face.

The connection with the two cords is made in the simplest way if each If ¹ ■''; slat support is connected to the cords on the front side via hook-eye connections. The cords can then be hooked in or out as required.

&igr;« ■■'. The ends of the slat supports are expediently designed as hooks, I ^: > so that the cords must be fitted with eyelets which are arranged at distances from one another which result from the width of the slats.

j:!; ,; : In the version in which the guide rail is designed as a profile rail with one or more guide grooves, the fixing strip can be mounted in a particularly simple way by inserting two hooks or eyes into the guide rail at least in the end areas, which are guided through holes in the fixing strip. In such a version, it is advantageous if the slats are suspended by means of a rotating hook, which is however provided with a sliding head.

- PATENT ATTORNEYS - BELEFELD, 24 January 1997

Friedrich Richter Description Sheet 4

which engage in the guide grooves. The curtain gliders are positioned centrally between the two long edges of each slat,

:; In a design where the guide rail is designed as a rod or rope

is, the slats are conveniently suspended using rotating hooks, which are inserted into curtain rings that can be moved along the rod or the rope.

and have a head. Curtain rings are also used to support the fixing strip, which hold at least the two end areas of the fixing strip. In order for the slats to be under tension, whereby the respective position ■, ■ is additionally fixed, each slat is provided with a pocket in the lower area into which a load element is inserted. In order for the

To ensure the swivel movement of the slats, the front end areas of the load elements are connected to the continuous cords, corresponding to the arrangement in the upper area. The pockets in the upper and lower areas are formed in the simplest way by folding the end areas of the slats. The free end is then connected to the assigned area of the slat. This

can be done by sewing, stapling or gluing, for example.

The invention is explained in more detail with reference to the accompanying drawings.
Show it:

Figure 1 A vertical blind according to the invention in which the slats are

the open position, in a front view, highly schematic,

Figure 2 . a plan view corresponding to Fig. 1,

Figure 3 the suspension of the slats when using a profile rail,

, as well as the storage of the fixing bar in the closed position of the slats showing,

Figure 4 is a view corresponding to Fig. 3, but in the opening

position of the slats,

Figure 5 is a plan view corresponding to Figure 4 and

Figure 6 shows the suspension of the slats and the bearing of the fixing bar.

■' ' sufficient, when using a rod or a rope and a second cross-sectional shape of the fixing bar.

LOESENBEp,^& STRAcke,-PATENTANWÄLTE-BIELEFELD 24 January 1997

Friedrich poet

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The vertical blind 10 shown in Figs. 1 and 2 consists of six slats 11 which, as shown in Figs. 3 to 5, are suspended in a manner explained in more detail on a guide rail 12 which is designed as a profile rail and has a guide groove 13. The guide rail 12 is fixed in place and is attached to the ceiling of a building in a manner not explained in more detail. The number of slats depends on the width of the window area to be covered and is usually greater than the number shown.

Fig. 1 shows the open position of the slats 11 in which a fixing strip 14 is supported on the upper front edges of the slats 11, which is freely rotatably mounted on the guide rail 12 in a manner explained in more detail below.

Fig. 2 shows that the slats 11 are suspended in the middle. A hand rod 15 is arranged on an outer slat 11 for turning and moving along the guide rail 12. The slats 11 are connected to one another at the two upper outer corners by cords 16, 17. In order to hold them in the extended position on the side opposite the hand rod 15, a locking device 18 (not explained in more detail) is inserted into the guide rail 12.

Fig. 3 and 4 show the suspension of the slats 11 and the bearing of the fixing strip 14. Rotatable hooks 19 are inserted into the guide groove 13 of the guide rail 12 in accordance with the number of slats 11, said hooks having a sliding head that engages in the guide groove 13. The slats 11 are suspended from the hook-shaped lower area. For this purpose, they are provided with pockets 20, which are formed by folding over the end area. Plate-shaped slat supports 21 are inserted into the pockets 20, which extend essentially over the width of each slat 11 and are provided with a hole. A hand rod 15 made of a square tube is attached to one of the outer slats 11 in order to pivot the slats from the closed position to the open position and vice versa. The fixing strip 14 is supported by two hooks 22 assigned to the end areas of the fixing strip j 4, which in the illustrated embodiment are screwed into the guide rail 12. The fixing strip 14 is then provided with holes in the correct position.

In the example shown, the fixing strip 14 consists of an angle profile with unequal legs, with the shorter leg facing away from the profile rail 12 and the slats 11. The hooks 22 are positioned so that the bearing points for the fixing strip 14 are offset laterally from the suspension points of the slats 11

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&Mgr;&eacgr;- PATENT ATTORNEY^ - pjELEFELD

24 January 1997

Friedrich Richter ,*,.., .* Description. Sheet 6

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In addition, the bearing points are aligned with the guide rail 12.

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f if',■'" is at a very small distance from it, so that the closed position of the slats is secured. In this position, the fixing bar 14 assumes a position such that the center of gravity in the vertical projection lies below the bearing points of the fixing bars 14.

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Fig. 4 also shows that the slat supports 21 are slotted in the two end regions to give them a hook shape so that eyelets 23 can be hooked into them. The eyelets 23 are attached to the cords 16, 17 at intervals.

From Fig. 3 and 4 it can be seen that when the slats are rotated by an angle of approx. 9p, prad, in order to move them from the closed position to the open position, the fixing bar is also pivoted by a corresponding angle, namely anti-clockwise as shown in both illustrations. When the slats are in the open position, it rests on the upper end faces. The slats are also secured in the open position by their own weight.

In contrast to the described embodiment , in the embodiment 12ö ¹ I according to Fig. 6 the guide rail 12 is formed by a curtain rod with a circular cross -section or by a rope. Curtain rings 24 placed on the rod 12 are then used to suspend the slats 11. The rotating hooks 19 are in turn inserted into these curtain rings. Two further rings are placed on the rod 12 between the two outer curtains 24 in order to support the fixing strip 14 by means of hooks 22. The arrangement of the fixing strip 14 in relation to the arms 11 or to the rotating hooks 19 corresponds to the embodiment already described.

In Fig. 6, the closed position of the slats 11 is again shown. When rotated, the fixing strip 14 is pivoted in accordance with the design already described.

From Fig. 1 it can also be seen that the slats 11 are also provided with pockets at the lower ends _, which are formed by folding over and securing the end regions, and plate-shaped loading elements 25 are inserted into the pockets. As a result, the slats 11 are subjected to a tensile stress dependent thereon.

, _|;iii ^ _ 24 January 1997

Friedrich Richter

Description^ Sheet

The lateral front ends of the slats are also connected to one another in the lower area by cords 2ß. In the illustrated embodiment, the cords 2f> are fixed to the loading elements 25 in accordance with the upper area. This can again be done by a hook-eye connection.

Fig. 6 also shows that the fixing strip (14) does not have to be angular, but can also be curved or circular, for example in the lower area.

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LOESE^B^^T^A^^ PATENT ATTORNEY^ _: BIELEFELD

24 January 1997

Claims (1)

4Wi ',,'■hi 6, !:,i it! i„,l:is;if: :!«!:!'■ &igr; itlSi &ngr; ¹ !; ni „ ¹ I y,: !,,I c, " ¹ Vf ¹ J;! ¹ " „i„,:j,; ,,U. LlI J-: H,f... ;i. ,Li'" ¹ ,!',{ ¹ J": &Lgr;: ¹ "Il ,'ir' Protection claims Vertical blind with slats suspended so as to be rotatable and displaceable along a stationary guide rail, which are connected to one another in the upper area facing the guide rail by two cords and can be moved by a rotatable and displaceable hand rod, characterized by a fixing bar (14) which extends essentially over the width of the vertical blind (10) and which is mounted in the upper area at a small distance below the guide rail (12) in relation to the height of a slat (11) so as to be freely pivotable about a horizontal axis, so that in the closed position of the slats (11) it touches them linearly or is at a small distance from them, and that in the open position of the slats (11) it rests on the upper edges of the slats (11). Vertical blind according to claim 1, characterized in that the fixing strip (14) is formed from a profile rail with a cross-section deviating from a flat cross-section, preferably an angular cross-section. Vertical blind according to claim 2, characterized in that the angle profile is an unequal-sided profile, the shorter leg facing away from the slats (11) and the guide rail (12), based on the closed position of the slats. Hifgf^STRAckE- PATENT ATTORNEYS - BIELEFELD 24 January 1997 Friedrich Richter Sheet · &igr; · 4. Vertical blind according to claim 2, characterized in that the fi- i ^! xierjeiste (14) on the slats (11) and the guide rail (12) '■'"^: ;! facing side is curved or circular. 5. Vertical blind according to claim 1, characterized in that each slat ( ¹¹ ) is designed at the upper end region as a pocket (20) into which a dimensionally stable slat carrier is inserted. 6. Vertical blind according to claim 5, characterized in that each slat support (21) is connected at the end to the cords (16, 17) via hook-eye connections. to 7. Vertical blind according to claim 6, characterized in that the eyelets &iacgr; (23) on the cords (16, 17) are arranged at intervals, and that the i :' j/ Front end regions of the slat supports (21) are designed as hooks. 8. Vertical blind according to claim 1, in which the guide rail is designed as a profile rail with one or more guide grooves, thereby ii5 ^: indicates that for the storage of the fixing strip (14) at least in the end I, two hooks (22) or eyelets are provided which are inserted through holes the fixing bar (14). L'i'i;'.■■■■'■,:■'/„'■■■'■■.' .. &igr; ^: ■ 9. Vertical blind according to claim 8, characterized in that the '■;"■: '■; blades (11) by means of a rotatable ham- 1;20 kens (19) are suspended. ■ !;!>,!; 10. Vertical blind according to claim 1, wherein the guide rail is designed as a rod or rope, characterized in that the suspension of the T. i':;r Lanne!|en (11) by means of a rotatable holder having a sliding head (19a) :|;.; _&ngr; kens (19) is carried out, which in the curtains movable on the rod or the rope ^I! 2S ^! nenringen (24) are inserted. ' 11. Vertical blind according to claim 10, characterized in that the ■f.! ,&Igr;;|; Fixing rod (14) at least in the two end areas by means of curtain rings j rl·.' ¹ : :&ggr;!'' . ! ,!'&iacgr;'&idiagr;·: li , &igr;'■■'·' , j!';; j· ., is mounted on a pole or rope. :|:i; ! 12. Vertical blind according to one or more of the preceding claims 1 lälr" to 11 , characterized in that the slats (11) at the lower ¹ :;;;{:!;, end regions have pockets into which loading elements (25) are inserted 24 January 1997 :1. ¹ W ¹ H ¹ T ¹ ,&iacgr;^!&igr;!&idiagr;&Pgr;'1&iacgr;&idiagr;'' ,!&igr;; ti ..;i , J ; Is'if! !st &ngr;',&igr;',; :■■ _&Mgr; !&Idigr;; H ! ¹ HH- Frederic Richter Sheet whose front ends are connected with continuous cords (26). , i, &igr; , &ngr; in'tiiM ¹ . «" ■!!,I ¹ , ;> fir.il 'Jin 1'V(JM ,„,-til iv ,i,ä„ ■!■IM' ¹ ,: j,i &igr;, &pgr;,,, :i; , |,ij. , ■>|i::::it;: ₍ . _f ,L ,"ftiriif'»;':;)!!" ;.1{ ^; !&idiagr;:!&idiagr;1' ■■ flr.i ¹ ! ¹ .!.ii ¹ .'"-',i Hi ¹ Ir-41. ,,■&iacgr;&idiagr;',,,&igr;&iacgr;&Igr;,,,&iacgr;&iacgr;!:! ¹ · ¹ !;!..:· LOESENBECK^STRAcke - PATENT ATTORNEYS - BIELEFELD ■ &igr; ¹ „&Pgr;"· ■,·.:» lsi 24 January 1997