WO1992020894A1

WO1992020894A1 - Strip blind

Info

Publication number: WO1992020894A1
Application number: PCT/EP1992/001048
Authority: WO
Inventors: Marion Hofbauer; Hans Joachim Hofbauer; Harry E. CHODZIESEN
Original assignee: Harry E. Chodziesen Produktentwicklung Gmbh
Priority date: 1991-05-13
Filing date: 1992-05-12
Publication date: 1992-11-26
Also published as: CA2087186A1; EP0539556A1; AU1690692A

Abstract

Disclosed is a strip blind, the runners of which run in a track. In each of these runners is mounted a rotating shaft which can act on a cogged wheel and a strip hook; these are linked with each other via an arrangement for effecting translational and rotational adjustment of the hooks. The cogged wheel (68) is integral with the rotating shaft (64, 66, 68, 72); its teeth (71) engage the teeth (83) of toothed segments (82) which face each other, and each of which is situated at the extremity of a coupling element (77) with a coupling strip (78); the free end of the coupling element is shaped as a carrier (89, 90) for the neighbouring runner (29). The strip blind (1) can be operated by using a rod (99), chain, or the like (117). Lateral movement of the strips (2) is possible either in a completely or partially closed position.

Description

Slat curtain

The invention relates to a vertical blind with a rail in a Lauf¬ with Lä ^'ngsschlitz run run sliders, each of which is mounted shaft, a stationary with a gear and a laminated hooks in operative connection pan, and by means of an arrangement for translational and rotational adjustment of the Slat hooks are connected to one another, the end of the slat curtain being fixable at the end of the running rail and the beginning of the slat curtain being equipped with an adjustment drive.

In the case of known lamella curtains, relatively complex sliding slides, on which the slats hang, are moved in translation by chains or cords guided in the running rail, which are guided around a roller at one end of the running rail and as an operating end at the opposite end loop are led out of the running rail. | As shown, the individual sliders are provided with strip-shaped spacers or connecting cords stretched out as chains between the slats._ For pivoting the slats, worm drives can be provided in each slider, in such a way that a gearwheel is attached to the slat hook on a vertical swivel shaft stands in the drive connection, which sits on an axis aligned in the longitudinal direction of the running rail. These screws of all running sliders are aligned with each other and are all seated on a notch shaft which penetrates the running rail in the longitudinal direction and which drives all screws synchronously in the respectively selected direction of rotation upon rotation. The snails can slide in along the notched shaft

REPLACEMENT LEAF slide in both directions along the track. At one end of the notched shaft sits a drive wheel, over which a control cord shaped into a loop is guided (DE 3029 179 AI, DE 3303715 AI, DE 3825911 AI and DE 3907043 AI).

Such lamella curtains consist of many structurally extremely complex individual parts, especially since the worm gear drive in each runner also often includes a slip clutch. The assembly of such lamella curtains is always difficult if suitable standard rails are not to be used in conventional window openings, but if the delivered rail first has to be brought to a suitable installation dimension on site. Such assemblies can only be carried out satisfactorily by specialists.

Also known is a lamella curtain with running slides guided in a curtain rail with a drive element for splinting the running slides in the running rail, with rotatable pivot axes on the running slides carrying the slats, and with a worm drive on each running slider that can be rotated in connection with the actuation of the drive element , which meshes with a counter-element of the swivel axis, the drive element being formed by a cord which, in the form of a non-positive engagement with a belt pulley, stands on each runner and the belt pulley is coupled to a worm drive (DE 3822727 A1).

As a result, the slip clutches in each slide can be replaced by the releasable non-positive engagement of a cord in a pulley, which meshes with the swivel drive and, according to a preferred embodiment, is formed in one piece with the worm drive and coaxially with it. The cord first rotates the pulley and thus the worm axis, as a result of which the lamellae are pivoted about their vertical axes in synchronism with one another. In their two end positions, the swivel axes run against stops, so that no further rotation of the swivel axles and thus of the belt pulleys is possible. Now the pulleys

REPLACEMENT LEAF and thus also the running gliders are carried along by the running cord, so that they can collect as a lamella package on one side of the lamella curtain.

In this known lamella curtain, both the rotary drive of the slats and the translational drive of the running gliders is possible by only one drive element, namely the cord guided in the running rail, but this has to be a costly and complex construction of the running gliders. Each runner has a vertical swivel shaft mounted in it, to which a lamella is attached. Inside the runner housing, a gear sits on the swivel shaft, which meshes with a worm wheel on a worm shaft, which is mounted transversely to the swivel shaft in the runner housing. Outside the Laufgleit¬ housing sits on the worm wheel axis, a belt wheel that interacts with the cord. The cord itself is guided around deflection rollers at each end of the running rail, one of which can be driven by a crank.

In another slatted curtain, and the translatory drive of the drive slider and the rotational drive of the blades is carried out in which, by only one ^• drive means are also running slide in a running rail angeord¬ net, each having a free-hanging plate to their vertical, via a respective gear wear pivot-limited pivot axis, the toothed wheels, each connected via a slip clutch to the pivot axes, meshing with a drive body which is displaceably guided in the curtain rail and has counter-toothing for displacing and pivoting the slats. The drive body consists of a flexible, non-stretchable drive belt, which is joined to form an endless train and is guided at both ends of the running rail via deflection rollers, in which the strand meshing with the gear wheels in the inner and the returning strand in the outer one of two on each side of the curtain level runs in the running rail along these running guides (DE 2729491 C2).

Although with this slat curtain the drive belt - without interposition

REPLACEMENT LEAF of a worm gear - meshes directly with the gears of the slide, a slip clutch between the gear and the swivel axis is also necessary. Added to this is the fact that deflection rollers must be provided at each end of the running rail, and that the drive belt and the guidance of the working run and the empty run in each case require a not simple cross section of the running rail.

In contrast, the object of the invention is to create a lamella curtain, the individual elements of which are simple in design, and which allow translatory drive of the sliding elements and a rotary drive of the lamellae by means of only one drive element, without the need for a second drive element is.

It has been found that this task can be solved in a lamella curtain of the type described at the outset simply by the gear being part of the pivot shaft and its teeth engaging the teeth of opposing tooth segments, each of which is located at the end of one sits with a coupling strip provided coupling element, the free end is designed as a driver for the adjacent sliding glider.

According to the invention, these coupling elements form two opposing coupling element chains in the closed state of the lamella curtain - chains, via the toothed segments of which the gears of all the running slides are in drive connection with one another. By means of this coupling, by means of the gear wheels rotatably mounted on vertical swivel shafts in the sliding elements, the movement of a coupling element chain in one direction brings about an equally long but opposite movement of the opposite coupling element chain. During these opposing movements, the gears of all the running sliders and thus the slats connected to them pivot synchronously by the same angle. The gearwheels and the toothed segments are dimensioned and coupled to one another in such a way that, in the case of lamellae which are exactly transverse to the running rail, the middle teeth of the seven teeth, for example, each Tooth segment engage in opposite tooth gaps of the gearwheel, and that when the coupling element chains move in the opposite direction into their end positions, all the lamellae by 90 ° in one closed position and when moving from the central position in the other direction by 90 ° in that reach another closed position. In these closed positions, narrow areas lie next to each other along the vertical longitudinal edges of the slats. In addition, there are resilient stops on the tooth segments at corresponding limit stops on the sliding shoes.

It is obvious that any angular position of the plates can be set by means of the coupling element chains.

Details of the invention can be found in the subclaims.

According to claims 23 to 27, the gear of the last lamella hook sits in the pivot hole of an end piece, the cross section of which corresponds to the cross section of a normal running glider, and that is connected to the end of the running rail. In contrast, the gear of the first slat hook sits in a pull slider, the cross section of which corresponds to the cross section of a sliding slider, the first slat hook being combined with an operating rod in a first embodiment. By pivoting the operating rod, the opposing coupling element chains are displaced within the running rail via the gearwheel of the pull slide, and thus the gearwheels in all running slides are pivoted in accordance with the rotational movement of the operating rod. This is possible due to the special construction of the sliding elements and the coupling elements, which are essentially characterized in claims 1, 2, 9, 10, 12, 13, 14, 23 and 24.

Using the operating rod, the pull glider and all running glides can be pushed together to form a package at the end of the running rail. By actuating the pull glider in the opposite direction, first the pull glider is removed from the package and then the following sliding slides are individually removed from the package, the drivers at the free end of the coupling strips coming into contact with the guide and stop angles according to claim 13.

REPLACEMENT LEAF The coupling elements thus perform a multiple function: as part of a chain of coupling elements, they form drive elements for the translational movement of the sliding elements and for the rotary movement of the slats, while at the same time they also take on the function of spacers between the individual sliding elements.

The construction. Of the coupling elements is very simple. Just as simple is the construction of the gearwheels or leg shafts within the sliding elements and the connecting elements between the lamella hooks and the swivel shafts, as essentially characterizing claims 2, 3 to 8, 15.

The cross section of the running rail can also be made very simple.

The features of the running slides characterized in claims 18 and 19 have the effect that the number of running slides required for a lamella curtain can be put together into a package before they are introduced into the running rail, as a result of which the assembly time is considerably shortened compared to the time which would have to be accepted if each running slide were to be inserted individually into the longitudinal slot of the running rail.

The simple construction of the individual parts of the slat curtain according to the invention not only lowers the purchase price, but it is also the prerequisite for the fact that the slat curtain does not have to be manufactured or manufactured by specialists. In addition, a lamella curtain can also be installed by laypersons using the do-it-your-self method, with the result that the lamella curtain according to the invention is particularly suitable for being offered in home improvement stores.

Instead of the operating rod, an arrangement according to can also be used as the only drive element for the translatory movement of the sliding elements and the rotary pivoting of the slats. Claims 29 and 30 are used in the pull glider, with all other structural elements of the La.mellen curtain being retained and the operation of the slat curtain being carried out by a chain.

REPLACEMENT LEAF A peculiarity of the exemplary embodiments described so far is that a secure pivoting of all the slats of the slat curtain is only guaranteed if the slat curtain is pulled out completely and its pulling glider is engaged at the beginning of the running rail. As a result, the tension is generated in the clutch element chains that is required for the lamella curtain to work properly.

With the measures of claims 32 to 37, it is possible to ensure pivoting of the slats even when the / slat curtain is only partially closed or opened.

Exemplary embodiments of the invention are explained below with reference to the drawing:

It shows:

a perspective overview drawing, a cross section through the running rail with a front view of a running glider, a schematic plan view of the running rail without an upper wall, an exploded view of a running glider with coupling elements a running glider in perspective view, a longitudinal section through the running glider according to FIG. 5, a coupling element in Top view, a side view of a part of the coupling element according to FIG. 7

10 shows a perspective view of a pull glider, FIG. 10 shows a perspective view of an end piece, FIG. 11 shows a construction detail, FIG. 12 shows a construction detail, FIG. 13 shows a gearwheel, FIG. 14 shows a side view, partly in section, of a pull glider for the second exemplary embodiment , FIG. 15 shows a plan view of FIG. 14, FIG. 16 shows a section through FIG. 15, FIG. 17 shows a pair of coupling elements which enables the slats to pivot when the slat curtain is not closed and 18 shows a basic illustration of the sliding elements for a slat curtain with the possibility of pivoting the slats in the non-closed state of the slat curtain.

The slat curtain 1 shown schematically from above in FIG. 3 has individual slats 2 in the usual way. Only four lamellae are shown in FIG. 3. According to the invention, slat curtains 1 with any number of slats can be used.

The lamella curtain 1 runs in a later, explained manner within a running rail 6, which is shown in cross section in FIG. 2. 3, the upper wall 12 of the running rail 6 has been removed. The running rail 6 has a beginning 7 and an end 8. The end 3 of the slat curtain 1 is connected to the end 8 of the running rail in a manner explained later. The beginning 4 of the running rail is formed by a pull glider 101, which is explained in detail with reference to FIG. 9. The end 3 of the Lame lenvorhanges 1 is formed by an end piece 101, which is identical to the pull glider 101 ^■ in the illustrated embodiment. The end piece 101 is connected to the end 8 of the running rail, screwed in preferred embodiments.

The running rail 6 shown in section in FIG. 2 has side walls 10 which have upper regions 11 which are bent upwards and which are connected to one another by the upper wall 12. The bent-in upper regions 11 result in overhanging edges 13 on both sides of the upper wall 12, which are used for fastening the running rail 6 to the ceiling. A longitudinal slot 15, which is delimited by slot walls 16, is arranged in the bottom of the running rail 6. The slotted walls 16 end upwards through slideways 17 with inner edges. 18. The running rail 6 is closed at both ends by an end cap 20, which is only shown sketchily in FIG. 3 and is explained in more detail in connection with FIG. 1. Each end cap 20 has side walls 21, intermediate walls 22 with a screw hole 23. The end caps 20 are closed by an end wall 24 with projecting edges 25, by means of which a proper lateral closure of the running rail 6 is formed. Within the running rail 6, the end caps 20 end through inner walls 26 with recessed areas 27, the meaning of which is explained in more detail in connection with FIG. 1. Rail for stabilizing the seat of the end caps 20 innerha ^'Lauf¬ the side bars 28 are provided.

Between the pull glider 101 and the end piece 101, the lamellae, not shown in FIG. 1, are fastened to sliding glides 29, which are explained below in connection with FIGS. 1, 2, 5 and 6. Each runner 29 consists of an upper part 30 with an upper surface 31 and a lower part 32 with a lower surface 33. The runner 29 is penetrated by a pivot hole 34, which is arranged vertically when inserted in the running rail 6. Fig. 6 shows that the pivot hole 34 has an upper diameter 35 and a lower diameter 36. The upper part 30 and the lower part 32 are connected to one another by a front connecting web 37 and a rear connecting web 38, between which the pivot hole 34 is arranged. Lateral slide channels 39 for the inside edges 18 of the slideways 17 are provided in the slide 29 on the side of the longitudinal slot 15 of the slide rail. 2 shows the interaction of these slide channels 39 with the inner edges 18 of the slide surfaces 17.

Above the slide channels 39, lateral slide projections 57 are provided on both sides of the slide which slide on the slide tracks 17 of the slide 6.

Each runner 29 has plump! to the lateral sliding lugs 57

TT Guide grooves 14 for toothed segments 82 on coupling elements 77, which will be explained later. The guide grooves 40 have side walls 41 and floor surfaces 42. Longitudinal slots 43 are provided in these. 1, 4 and 5 show that the guide grooves 40 are each delimited by a stop 45, the meaning of which will be explained later.

An upper guide groove 46 and a lower guide groove 47 are provided above and below the guide groove 40, the meaning of which will also be explained later.

The cross section of a sliding glider is designated 49 (FIG. 2). The front 58 of each slide 29 closes with a fork-shaped clamping piece 50, which has two fork arms 51 with side walls 52. Above the fork-shaped clamping piece 50, a fitting piece 53 is provided, which fits into a recess 60 on the rear side 59 of the preceding slide. The fork-shaped clamping piece 50 and the fitting pieces 53 of the sliding elements are suitable for assembling the sliding elements 29 belonging to a lamella curtain 1 before they are assembled into a package. In order to facilitate this plugging together, the fork arms 51 taper forward. In the assembled state of the sliding elements 29, the fitting pieces 53 on the front sides 58 of the sliding elements 29 engage in the recesses 60 on the rear sides 59 of the sliding elements. As a result, assembly time is saved when inserting the slide 29 into the longitudinal slot 15 of the slide 6.

Each runner 29 receives in its pivot hole 34 a pivot shaft, which is composed of a gear 68 and a lamella hook 62. The gear 68 is shown in more detail in FIG. 13. It consists of a ring gear 69 with a diameter 70 and teeth 71. In the assembled state above the ring gear 69, a swivel ring 72 is provided. The gear wheel is penetrated by an inner wall 74 through a vertically running plug hole 73 in the assembled state, in which slots 75 with notches 76 are provided. A plug pin 66 can be inserted into the plug hole 73 from below, in the assembled state. On the pin

REPLACEMENT LEAF 66, a clip hook 63 is provided below for a slat. A swivel ring 64 with a diameter 65 is arranged above the clip hook 63. The pin 66 closes at the top with resilient locking lugs

67 from. In connection with Fig. 4 it is understandable that the gear 68 can be inserted from above into the pivot hole 34 of the slide, until the lower surface of the ring gear 69 stands on the transition from the large upper diameter 35 to the smaller lower diameter 36. This prevents the gear from slipping through the pivot hole 34 during operation. Then from below the pin 66 of the slat hook

62 inserted into the plug hole 73 until the resilient locking lugs 67 engage behind the catches 76 at the end of the slots 75 in the plug hole 73 of the gear wheel 68. This creates a secure connection between the gear 68 and the lamella hook 62 and defines the pivot axis for the lamellae 2.

In the inserted state, teeth 71 of the ring gear 69 of the gear wheel protrude

68 through the longitudinal slots 43 in the bottom surfaces 42 of the mutually opposite guide grooves 40 in each slide 29.

The individual sliding elements 29 are connected to one another by coupling elements 77. These coupling elements 77 consist of a coupling strip 78 with opposing sliding edges 79 which can be chamfered at least on one side. One end of the coupling strip has a base 80 with side walls 81, from which teeth 83 of a tooth segment protrude. In the illustrated embodiment, seven teeth are provided per tooth segment. The teeth 83 of the toothed segments 82 are dimensioned such that they can easily mesh with the teeth 71 of the ring gear 69 of the gear wheels 68. Fig. 2 shows that in the end region of the base 80 for the toothed segments 82 a resilient stop 84 is provided, which interacts with the stop 45 at the end of the guide groove 40 in the sliding member 29 in order to limit the movement of the coupling elements 77 relative to the sliding members ensure when the pivoting movement of the slats 2 has ended. Above and below a toothed segment 82, reinforced sliding edges 85 are provided on the coupling element 77, which slide in the slide channels 46 and 47 (FIG. 2) in the sliding element.

REPLACEMENT LEAF The dimensioning is such that the teeth 83 of the tooth segments 82 mesh with the teeth 71 and the ring gear 69 of the gear wheels 68.

On the back of the toothed segments 82 there are guide and stop angles 86 with guide grooves 87, in which the sliding edges 79 of the coupling strips 78 of the coupling elements 77 slide in the assembled state. The guide and stop brackets 86 are designed such that the driver 89 strikes the free end of the coupling strip 78, which makes it possible, by actuating the pull slider, to individually pull the individual sliders out of the slid-together slider package at the end of the running rail.

The coupling strips 78 of the coupling elements are each provided with a longitudinal slot 68, by means of which it is possible, according to FIG. 11, to clip the coupling strips 78 into the upper and lower guide grooves 46, 47 of a sliding block 29. Lugs 90 are also arranged on the driver 89 according to FIG. 7. In a modification, for example, to the driver 89 according to FIG. 4, a driver 89 according to FIG. 7 has a slot 91. According to FIG. 4, the sliding edges 79 of the coupling strip 78 can also ^'chamfers 92 have auf¬ which facilitate clipping-in of the coupling elements 77 in the drive slider.

9 shows a guide plate holder 93 with a clip hook 94 for the first slat 2 of the learning oil curtain 1. The clip hook 94 has an eyelet into which an operating rod can be hung. A swivel ring 95, a swivel ring 96 and a gearwheel 97 are provided above the clip hook, to which a swivel axis stub 98 is connected. In a preferred embodiment, this combination shown in FIG. 9 consists of one piece. It is used in the train conductor 101, which is shown in FIGS. 1 and 9. The operating rod 99 has a hook 100 for the eyelet on the clip hook 94. The pull slider 101 has the same cross section 109 as a running slider 29, the cross section 49 of which is shown in FIG. 2. The pull slider 101 also has guide grooves 40 on both sides for the segments 82 of the coupling elements 77.

TZBLATT The construction is the same as that which was discussed in connection with the running slider 29. Only longitudinal slots 102 are provided in the bottom surfaces of the guide grooves 40, which are longer than the longitudinal slots 43 of the guide grooves 40.

In the exemplary embodiment shown, pull glider and end piece 101 are identical. Therefore, both parts have screw holes 103. A pivot hole 34 as described in connection with the running slider 29 is provided in the pull slider / end piece 101. This pivot hole 34 has no meaning in the pull glider. On the other hand, in the end piece 101, as can be seen on the right-hand side of FIG. 1, in this pivot hole 34, which is also discussed in connection with the description of the sliding block, there is a pivot shaft for the last lamella 2 of the lamella consisting of the gearwheel and the lamella hook ¬ len curtain 1 embedded.

Both pull glider 101 and end piece 101, however, have a second hole which is designed as an elongated hole 106. This elongated hole 106 belongs to a vertical receptacle 104, which is shown in FIG. 12. This receptacle 104 serves to receive the single-storey clip hook 94 with eyelet explained in connection with FIG. 9. Due to the one-piece design, the gearwheel and lamella hook cannot be put together as described. In order not to make the end piece 101 too large, a receptacle 104 is therefore provided, into which the one-piece clip hook 94 with eyelet can be inserted from behind through an insertion slot 105. As the lower part of FIG. 12 shows, the insertion slot 105 is so narrow that the swivel ring 96 of the clip hook 94 with eyelet only fits under pressure. In the introduced state, the gear 97 lies in the receptacle 107 for the gear, the swivel ring 96 in the receptacle 108 for the swivel ring.

The description of the end piece 101, which is shown in FIG. 10, is superfluous since it is identical to the described slide glider 101. A screw 110 with a washer 101 shown in FIG. 10 is provided for fastening the end piece in the end 8 of the running rail 6.

REPLACEMENT LEAF functionality

After the length of the running rail 6 and thus the number of necessary running sliders 29 have been determined, the running slider train is assembled, for example, in such a way that the toothed segments 82 of the coupling elements 77 are first inserted into the guide grooves 40 of the running slides 29 and aligned so that the gear 68 can be inserted into the pivot hole 34 of the slide 29 from above. Here, opposing teeth 71 of the ring gear 69 must engage in the middle tooth gap between the teeth 83 of the tooth segments 82.

Then the plug pin 66 is clipped into the plug hole 73 of the gear 68 from below, so that the coupling between the gear 68 and the toothed segments 82 is established and the desired pivoting of the gearwheels 68 by moving the mutually opposite coupling elements 77 in opposite directions is ensured.

The coupling strips 78 of the coupling elements 77 are then clipped into the guide grooves 87 behind the guide and stop angles 86 of the coupling elements on the running slider 29 preceding in the sliding chain, using the elasticity made possible by the longitudinal slots 88.

Longitudinal slots for the teeth of the gear wheels 68 and 97 connected to these parts are provided in the guide grooves of the tension slider / end piece 101. Toothed segments 82 with teeth 83, resilient stops 84, reinforced sliding edges 85 and guide and stop angles 86 are inserted in the pull slide 101 but without a subsequent coupling element 77. Via their guide stop angles 86, these tooth segments transmit the pivoting of the gear 97 to the first coupling elements 77 in each case of the two coupling elements - chains. As explained in connection with FIG. 12, the clip hook 94 with eyelet for the first lamella has been inserted into the pull glider 101.

The toothed segments 82 of the last clutch elements 77 in the clutch element chain work together with the gear 68 of the last plate of the multi-plate curtain 1, like the toothed segments 82 of the other clutch elements 77 with the teeth of the toothed wheels 68 of the sliding elements 29.

In the assembled state, all the slides 29 of the lamella curtain 1 can be pushed together to form a package at the end 8 of the slide rail 6, in which the pull slide 101 is pushed towards the end 8 of the slide rail by means of the operating rod 99. The pulling glider 101 abuts the following sliding glider 29 and this then the sliding glider that follows, until the package formation of the sliding glides 29 has ended. The coupling elements 77 also slide together, the configuration of coupling strips 78, base 80 and toothed segment 82 shown in FIG. 8 making it easier to push them together. In the case of a relatively small number of running slides, the coupling elements 77 pushed together have only a small throat on the side, so that a rail cross section according to FIG. 2 will suffice. However, if numerous sliders of a lamella curtain are necessary, a running rail 6 with a larger cross section, e.g. as shown in Fig. 1 preferred.

When the lamella curtain 1 is closed, the pull slide 101 is pulled by means of the operating rod 99 to the beginning 7 of the running rail 6, the guide and stop angles 86 attached to the toothed segments 82 in the pull slide 101, the drivers 89 of the first. Take coupling elements 77 to which the toothed segments 82 and the gear 68 of the first sliding member 29 are connected. In this way, all the running sliders 29 are gradually withdrawn from the package until the pulling slider 101 is in its position at the beginning 7 of the running rail 6 and may be held there by the clamping device (not shown). Then the drivers 89 of all coupling elements 77 lie on the guide stop

REPLACEMENT LEAF check 86. Then a pivoting movement of the control rod 99 is transmitted to all of the slat hooks 62 of the sliding block train.

In the exemplary embodiment described above, the pulling slider 101 is combined with an operating rod 99, by means of which the translatory drive is transmitted to the sliding slides 29 as well as the rotary drive to the slats 2 via the chains from the coupling elements 77 in the manner described.

14 to 16, a further pulling glider 112 is shown, via the elements of which the translatory and rotary actuators can be transmitted via a chain 17 to the opposing chains of the coupling elements 77. FIG. 14 shows a cross section through the running rail 6 and the pull slide 112, through which the chains from the coupling elements 77 can be moved via a chain 117. In the pivot hole 34, the gear 68 with the swivel ring 72 and the pin 66 of the first La ellenhakens 62, 63 are housed. The cross section 113 of the pull glider 112 corresponds to the cross section 49 of a normal running glider 29. In the pull glider 112, a threaded piece 123 is accommodated in the longitudinal direction, which in the exemplary embodiment shown is designed as a screw 123 with a head 124. An internal thread roller 115 sits on the threaded piece or the screw 123, around the circumference 116 of which the endless chain 117 is wound. 15 shows that this endless chain 117 consists of a hanging operating loop 118, a closing strand 119 and an opening strand 120. The chain runs, as can also be seen in FIG. 16, in the interior of the running rail 6, at the end of which it is guided around a deflection roller 121. The chain can also be guided through a corresponding deflection channel (not shown) in the end cap 20. By pulling on the closing strand 119, the pull glider 112 is pulled to the left in FIG. earth. The prerequisite for this left-hand movement of the pull slider 112 and the running slider 29 is the frictional force between the chain 117, the internal thread roller 115 and the screw 123. When the pull slider 112 engages at the beginning of the running rail 6, a further pull on the closing run 119 overcomes the previously described one Friction force, and the internal thread roll 115 is pivoted. Because the threaded piece or the screw 123 cooperates with an anti-rotation device 114 within the pull slide 112, the screw or the threaded piece 123 can move in the longitudinal direction within the pull slide 112. Depending on the design of the pull slide 112, the left end of the threaded piece can pass through an opening 126 in the front face of the pull slide 112. An axial displacement of the internal thread roll 115 is prevented by a stop 127. The first coupling element 77 of the one coupling element chain is firmly connected to the anti-rotation device 114 or the threaded piece 123, so that the axial movement of the threaded piece 123 is transmitted to the coupling element chain. As described in connection with the first exemplary embodiment, the movement of the one clutch element chain is transferred to a movement of the second clutch element chain in the opposite direction via the gears 68 in the sliding sliders 29, all the slats 2 of the slat curtain 1 being pivoted synchronously . By pulling on the opening strand 120 of the endless chain 117, the pull slider 112 is pulled to the right in FIG. 15, as a result of which — as in the first exemplary embodiment — all the sliders 29 are pushed together to form a slider packet at the end of the running rail 6. All slats 2 should be pivoted in one direction transversely to the running rail 6.

17 shows that on the coupling strips 78 of the coupling elements 77, just before the lugs 90 of the drivers 89, there are 89 brake knobs 54. The distance between a nose 90 and the edge of the brake knobs 54 facing this corresponds to the width of a guide stop angle 86 which fits into this gap. Between the brake nubs 54 according to FIG. 17 there is a longitudinal slot 55 in the coupling strip 78, which can also be designed as a slot 91 and which is open and expanded towards the rear. The dimensioning of these slots 55 and 91 specifies the braking force which builds up between a guide stop angle 86 and the brake knob 54 when the guide stop angle 86 slides past the brake knob 54.

Fig. 18 leaves a cam 48 on the tip of each fork arm 51 and one Recognize depression 44 in the lower surface 33 of a slide glider 29 and the pull glider and a run-up curve 56 which is provided between the rear side 59 of a slide glider 29 and the depression 44. When the sliding elements 29 and the sliding element 101 are pushed together to form a package at the end 8 of the sliding rail 6, all the cams 48 are engaged in the depressions 44 in the sliding element 29 lying in front of them, which thereby result between the successive sliding elements 29, the end piece 101 and the sliding element existing braking forces are greater than the braking forces between the brake knobs 54 and the guide and stop angles 86.

When pulling the slide glider 101, 212 and the individual slide sliders 29 from the slide slider package, the respective connection between the slide slider 29 and the slide slider 29 behind it in the package is held until the guide stop bracket 86 has overcome the brake knobs 54 and on the lugs 90 of the driver 89 and the train continues. Due to the fact that the guide stop angles 86 each come between the lugs 90 of the drivers 89 and the brake knobs 54, stable connecting element chains are formed which allow all the slats 2 of the partially drawn slat curtain 1 to be pivoted and which also when the slides are pushed together Stay glides 29 to the package remain.

Claims

1. Slat curtain with running slides guided in a running rail with a longitudinal slot, in each of which a pivot shaft which is operatively connected to a gearwheel and a slat hook is mounted and which are connected to one another by means of an arrangement for translatory and rotary adjustment of the slat hooks, the end the lamella curtain can be fixed at the end of the running rail and the beginning of the lamella curtain is equipped with an adjustment drive, characterized in that the gear (68) is part of the pivot shaft (64, 66, 68, 72} and its teeth (71) with the Teeth (83) are located opposite one another of the toothed segments (82), each of which sits at the end of a coupling element (77) provided with a coupling strip (78), the free end of which acts as a carrier (89, 90) for the adjacent one Running glider (29) is formed.

2. Slat curtain according to claim 1, characterized in that the gear (68) within a pivot hole (34) in the Lauf¬ slider (29) is arranged and that its teeth (71) through longitudinal slots (43) in mutually opposite floor surfaces ( 42) of guide grooves (40) protrude through the slide (29).

3. lamella curtain according to claims 1 and 2, characterized in that the gear (68) has a sprocket (69) pointing in the assembled state to the lamella hook (62) and an overlying pivot ring (72).

4. slat curtain according to claims 1 to. ^* 3, characterized in that the gear wheel (68) and the lamella hook (62) are connected to one another by means of a releasable connection (67, 76).

5. A slat curtain according to claim 4, characterized in that the releasable connection is a clip-connecting link (67, 76).

6. slat curtain according to claims 4 and 5, dadurbh characterized in that the gear (68) has a plug hole (73) for a plug pin (66) on the slat hook (62).

7. slat curtain according to claims 4 to 6, characterized in that in the inner wall f74) of the plug hole (73) in the gear (68) Schlit¬ ze (75) with notches (76) for locking lugs (67) on the pin (66) of the slat hook (62) are arranged.

8. slat curtain according to claim 8, characterized in that the latching lugs on the pin (66) of the iamellenhakens (62) spring detents (67) sidd.

9. slat curtain according to claim 2, characterized in that the guide grooves (40) with the longitudinal slots (43) in the bottom surfaces (42) are dimensioned such that the teeth (83) of the toothed segments (82) on the coupling strips (78) of the coupling elements (77) with the teeth ( 71) of the gear (68) are engaged.

10. lamella curtain according to claim 9, characterized in that each toothed segment (82) sits on a base (80) at the end of the coupling strip (78) of the coupling element (77).

11. lamella curtain according to claim 10, characterized in that the side walls (81) of the base (80) for the toothed segments (82) in the assembled state bear against the side walls (41) of their guide grooves (40) in the sliding element (29).

12. lamella curtain according to claim 9 - 11, characterized in that the end of the coupling strip (78) of the coupling element (77) in the region of the toothed segments (82) has reinforced sliding edges (85) which in the assembled state in the upper and lower guide ring ¬ NEN (46, 47) in the slide (29).

13. Louver curtain according to claim 12, characterized in that on the reinforced sliding edges (85) on the side facing away from the toothed segment (82) guide / stop angle (86) for ^" the clutch strip (78) arranged on the coupling element (77) are.

14. lamella curtain according to claims 9 - 13, characterized in that in each guide groove (40) in the sliding element (29) for a tooth segment (82) has a stop (45) for a resilient stop (84) on the base (80) is provided for the toothed segment (82).

ATZBLATT

15, lamella curtain according to claims 1-14, characterized in that in the coupling strip (78) of the coupling element (77) has a longitudinal slot (88) to facilitate insertion into the upper and lower guide trough (46, 47) in the sliding glider (29) and / or are provided behind the guide and stop angles (86) on the adjacent coupling element 77).

16. Slat curtain according to claims 1-15, characterized in that between the pin (66) and the slat clip hook (63) a swivel ring (64) is provided, the diameter (65) is smaller than the diameter (70) of the Sprocket (69) and that the pivot hole (34) in the slide (29) has different diameters (35, 36).

A lamellar curtain according to claims 1-16, characterized in that lateral sliding projections (57) for sliding on corresponding sliding tracks (17) are provided on both sides of the longitudinal slot (15) in the bottom (14) of the running rail (6) on the running slider (29).

18. Slat curtain according to claims 1-17, characterized in that on the front side (58) of the sliding member (29) in the region of the longitudinal slot (15) in the bottom (14) of the running rail (6) has a fork-shaped clamping piece (50) is arranged, which in the pushed-together state of the lau slider (29) cooperates with the preceding sliding glider (29).

19. Slat curtain according to claim 18, characterized in that above the fork-shaped clamping piece (50) a fitting (53) is provided for a corresponding recess (60) on the rear (59) of the preceding slide (29).

20. Slat curtain according to claims 9, 6 and 16, characterized in that the swivel ring (72) on the gear (68), the ring gear (69) and the swivel ring (64) between the pin (66) and the La ellen holder ? (62, 63) have an overall height which corresponds to the height of the sliding element (29).

21. A slat curtain according to claims 1-20, characterized in that at the end of the running rail (6) identical end caps (20) are provided which are equipped with reinforcing partitions (22) without the inclusion of functional parts.

22. Slat curtain according to claim 21, characterized in that the end caps (20) with a press fit at the beginning _. (7) or end (8) of the running rail (6) and / or are screwed to the running rail (6).

23. Slat curtain according to claims 1-22, characterized in that the gear (68) with swivel ring (72) and the pin (66) with swivel ring (64) of the last slat hook (63) in the swivel hole (34) of an end piece (101) sit, the cross-section (109) of which corresponds to the cross-section (49) of the slide (29) and which is screwed to the end (8) of the slide (6).

24. Slat curtain according to claims 1-23, characterized in that the gear (68) with swivel ring (72) and the pin (66) of the first slat hook (62, 63) in the swivel hole (34) of a Zug¬ slider (101) sit, the cross-section (109) of which corresponds to the cross-section (49) of a sliding glider (29), the clip hook with the eyelet (94) of the first lamella hook (62) being designed to connect a control rod (99J).

REPLACEMENT LEAF

25. Slat curtain according to claims 1-23, characterized in that as a gear (97) with a swivel ring (95) and the clip hook with eyelet (94) of the guide slat hook (93) for connecting a control rod (99) formed in one piece and with a swivel ring (96) is equipped, the outer diameter of which is larger than the diameter of the gearwheel (.97) and which, in the assembled state, is seated in a corresponding swivel mount (104) in the pull slide (101).

26. Slat curtain according to claims 23 and 25, characterized in that for fixing the one-piece gear (97), swivel ring (95), clip hook with eyelet (94) of the guide slat hook (93) with an insertion slot (105) provided receptacle (104 ) at the end of opposite longitudinal slots (102) for the teeth of the gear (97) is provided, in their receptacle (107) for the gear (97) and the receptacle (108) for the swivel ring (96) the corresponding parts of the one-piece guide plate hook (93) can be inserted and clipped on.

27. Slat curtain according to claims 23 - 26, characterized in that the end piece (101) and the pull slide (101) are of identical design and have a pivot hole (34) for receiving the gear wheel (68) with a swivel ring (72) of the last slat hook ( 62) as well as a receptacle (104) provided with a lateral insertion slot (105) for the one-piece guide plate hook (93).

28. Slat curtain according to claims 18 and 29, characterized in that the fork arms (51) of the fork-shaped clamping piece (50) are tapered towards the front.

29. A slat curtain according to claims 1-24, characterized in that the 7 gear (68) with swivel ring (72) and the plug pin (66) of the first slat hook (62, 63) sit in the swivel hole (34) of a tension slide (112), whose cross-section (113) corresponds to the cross-section (49) of a sliding element (29), and that a threaded piece (123) is fastened in the longitudinal direction in the sliding element (112), on which an internally threaded roller (115) is rotatably seated, around its circumference ( 116) an endless chain (117) or the like. Is looped, which consists of a hanging operating loop (118) and a closing strand (119) and an opening strand (120), which run inside the rail (6) and around a U-guide roller (121) or a deflection channel are guided at the end of the rail (6) or in the end cap (20), with an anti-rotation device connected to the threaded piece (123) within the pull slide (112) (114) is provided with which the first coupling element (77) of the a coupling element chain firmly connected the opposite rack (82) is flexible.

30. Slat curtain according to claim 29, characterized in that the threaded piece is a screw (123), the head (124) of which is part of the anti-rotation device (114).

31. Slat curtain according to claims 1 to 30, characterized in that in front of the lugs (90) of the driver (89) on the coupling strips (78), brake knobs (54) are arranged, and that at the tip of each fork arm (51) A cam (48) is provided, which in the pushed-together state of the sliding elements (29) engages in a corresponding recess (44) in the lower surface (33) of the preceding sliding element (29).

32. slat curtain according to claim 31, characterized in that the distance between the nose (90) on the driver (89) and the brake knob (54) on the width of the guide stop angle (86)

REPLACEMENT LEAF corresponds to the back of the toothed segment (82) on the subsequent coupling strip (78).

33. slat curtain according to claims 31 and 32, characterized in that a longitudinal slot (55, 91) is provided between the brake knobs (54) in each coupling strip (78).

34. slat curtain according to claim 33, characterized in that the longitudinal slot (91) through the driver (89) with the lugs (90) protrudes and is extended towards its front end and is open.

35. slat curtain according to claims 31 to 34, characterized in that the area of the lower surface (33) of each slide (29) between its rear (59) and the depressions (44) as Auflaufkur¬ curves (56) for the Cam (48) is formed on the fork arms (51) of the following sliding glider (29).

36. slat curtain according to claims 31 to 35, characterized in that the braking force between the cams (48) at the tips of the fork arms (51) and the run-up curve (56) or the latching (44) on the lower surface ( 33) of the preceding runner (29) is greater than: the braking force between the brake knobs (54) and the guide stop angles (86).