DK145830B - ROLLER JEALOUSY - Google Patents

Description

(19) DENMARK (w ^)

| p (12) PUBLICATION O ') 1 ^ 5830 B

DIRECTORATE OF THE PATENT 06 BRAND

(21) Application No 3000/75 (51) lnt.0.3 E 06 B 9/06 (22) Filing date 2 Jul. 1975 E 05 D 15/26 (24) Race day 2 Jul. 1975 (41) Aim. available Jan. 4 1976 (44) Submitted 1 Mar 4 1983 (86) International Application No. - (86) International Filing Day (85) Continuation Day - (62) Master Application No. -

(30) Priority 3- Jul. 1974, 9097/74, CH Apr 16 1975, 4833/75 * OH

(71) Applicant GRIESSER AG, CH-8355 Aadorf, CH.

(72) Inventor Paul Prel, CH.

(74) International Patent Bureau.

(54) Roller blind.

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a roller blind for windows or similar building openings, which is journalled in vertical side notes and consists of rods which form an armor and are pivotally connected to each other, and wherein the rods passed over an upper switching device are routed approx. 180 ° and behind the switching device can be moved downwards and, by zigzag folding, is stacked into a bar package which is supported below and which is formed of horizontally adjacent rods.

PO

Also from the specification of US Patent No. 474,259 there is known a roller blind of the aforementioned kind in which the rods at the ends are rotatably connected to each other by means of slats. On the inside of the window ^ the side notes are led upwards through a curved portion extending into a

Q

2 145830 roller blinds, which in each of its side walls have a pivotally mounted, narrow guide roller, which serves as support for the rod ends. The blinds, which have an operating member below, are moved upwards by the guide rollers, whereby the rods which, after a 180 ° reversal, move freely downwards from the guide rollers, must be folded into a vertical stack upon impact against the box bottom. The rods, which abut only at their ends against the guide rollers, - already at relatively small window widths - have a tendency to hang, which prevents impeccable folding. With a strong upward thrust of the shutter, the rods can be easily lifted from the rollers and pushed against the Upper and Rear box wall respectively, which also impedes impeccable folding. In addition, there are no means to ensure that the rods really fold in zigzag form, ie. alternating to one side and the other. In addition, the rods moving downward from the bypass rollers will automatically form a stack at the rear of the bypass location, which - despite the use of relatively narrow rods - assumes a correspondingly deep jalousie box. In addition, narrow rods - already at relatively small window heights - form an undesirably high stack at open jalousy, which leads to a correspondingly high jalousie box. The placement of such a blinds box directly on the window frame is unlikely to be addressed by the usual constructions today.

The object of the present invention is to create a foldable roller blind, which can be folded securely by means of a simple operating mechanism and thereby fit into a narrow fall niche - such as, for example, is sufficient for the placement of folding gates and respective doors - whereby the jalousie construction requires less space than the construction of the aforementioned US Patent No. 474,259 which requires a relatively large recording box.

To achieve this, the roller blind according to the invention is peculiar in that the side notes at the masonry sides extend into the fall niche formed between the window sill and the window plane, wherein the switching device, which is designed as a continuous shaft, is arranged so that the switching device has the respective upshaft at least two spaced apart sections across the blind width, which are designed as a flat support for the steerable rods and in collaboration with the shaft shaft via over approx. 180 ° extending rod guide means serves as a rod-forced support which prevents radial lifting of the rods and that the rods which move downwards from the shaft of the pull-up shaft by a pair of zigzag folding - e.g. are caused by side notes leading the rods at the ends, and / or by means of articulated joints which can be broken alternately 180 ° or prevented from being broken beyond 180 ° - can be stacked into one immediately below the pull-up shaft, vertical, by the lateral support arrangement supports a stack of superposed, horizontal rods and pole pairs respectively, which stack terminates the fall niche below.

An advantageous embodiment of the roller blind according to the invention is characterized in that the actuating shaft, which is connected to pivot propellants and serves as support and carrier for the rods, includes means such as rod guide notes and / or an outer guide plate which prevents lifting of the rods. , which passes through the shaft. This design ensures an impeccable guide of the rods at the drive shaft overturn site until they are stacked.

According to the invention, the shaft shaft can have at least sectional sections at a cross-sectional length with a generally corresponding edge height, whereby the surfaces of the cross-sections during the lifting and lowering of the shutter serve as forced support for the rods passing through the overthrow site.

Another advantageous embodiment of the roller blind according to the invention is characterized in that each rod has end pins running in the region of the override in a lateral guide groove, which leads thereafter to the lower drop niche opening, and that there is a pull-up shaft at the override location. are associated with pivot propellants and at least sectionally have triangular cross sections with a bar length substantially corresponding to the bar height, and which, for the purpose of lifting and lowering the jealousy, serve as forced support for the bars at the override location.

A further advantageous embodiment of the roller blind: according to the invention is characterized in that each rod of the roller has end pins which are arranged alternately laterally arranged one another on the rods and in the region of the shaft shaft. are guided in separate, uniformly extending guide notes, which subsequently run apart at a distance which is substantially equal to the rod height, the radially inner guide groove being led back under the shaft axis, after which both notes are guided parallel to one another 4 145830 horizontal stack support which is located in the region of the lower fall niche opening.

The invention will be explained in more detail below with reference to the drawing, in which fig. 1 shows a vertical section of a first embodiment of the roller blind according to the invention, with the lift, stacked in a fall niche, fig. 2 and 3 are analogous to that of FIG. 1 of the roller blind, respectively, during the submergence of the armor and by fully submerged armor,

FIG. 4 shows a vertical section of another embodiment of the roller blind according to the invention, with raised armor; FIG. 5 is a vertical sectional view of a variant of the embodiment shown in FIG. 4, with submerged armor; FIG. 6 is a vertical sectional view of a variant of FIG. 1; FIG. 7, 8 and 9 are larger-scale sections through an armor, illustrating various rod shapes; 10-13 vertical cross-section of a rearrange portion of a folding roller blind with square head roller and forced carrier in four different rolling positions; 14 and 15 show another embodiment of the foldable roller blind in positions corresponding to the positions of FIG. 10 and 12, FIG. 16 and 17 are a front view and a side view of an embodiment of a hook connection between the roller blind rods; 18 and 19 are a variant of the embodiment shown in FIG. 16 and 17, FIG. 20 shows on a larger scale a variant of the embodiment of FIG. 10; FIG. 21 and 22 are a side view and section along line 13-13 of FIG. 21, of guiding elements at the override location; and FIG. 23 is a cross-sectional view of a drive device with end stops of a foldable roller blind according to the invention.

In FIG. 1-3 represent a window sill with a fall niche 2, while 31 represents a window and 4 'a roller blind. The roller blind's armor is formed by hollow rods 5 'which at their longitudinal edges are pivotally connected to each other in such a way that they can be moved partly from each other to form a clearing slot 6', and light-resistant to each other and partly folded on each other by folding around their longitudinal edges. Such a rod connection is e.g. shown in FIG. 7. The rotatable rod joint is here formed by chains extending through the rods of interconnected, bent chain links 7'a, 7'b.

For guiding the shutter of the shutter to the lowered position of the armor, laterally located guide grooves 8 'are provided, while on each other bar 5', end pins 9'a, 9'b which engage the grooves 8 'are located and which are essentially the half rod height. As shown in the drawing, these pins 9'a, 9'b are arranged alternately disposed with respect to the median plane of the armor, the pins 9'a being outside and the pins 9'b within this central plane. To the upper end of the groove 8 ', where the armor bars 5' are released, two adjacent grooves 10'a, 10'b of the pins 9'a, 9'b join, their distance corresponding to the offset distance between the pins 9'a, 9'b. The two notes 10'a, 10'b lead along an arc of approx. 180 ° about the axis of an upper take-up shaft 11 'having a square cross-section of at least two spaced-apart sections across the blind. The arc of the radially outer groove 10fa follows approximately a circumscribed circle with respect to the square cross-section of the shaft, while the arch of the radially inner groove 10'b approximately follows the inscribed circle. Approximately at axis height with shaft 11 ', the two notes 10'a, 10'b begin to run apart at a mutual distance approximately equal to the rod height. The grooves 10'a, 10'b extending parallel to each other at such a distance end in height with the lower drop niche opening. The shaft shaft 11 'is connected to a shaft 12' for driving the shaft via a drive device not shown.

The explained roller blind 4 'works as follows. FIG.

3 shows the roller blind with fully submerged armor. Since the lower rod 5 'or the usually present end rail has a support at the bottom, the complete submersion of the armor, thanks to it in e.g. FIG. 7 shows that the rods 5 ', during closing of the clearing slot 6', form a practically light-tight armor. The top three rods then, respectively, abut a side face of the square section 11 '"of the shaft 11 and in this position are secured by the end pins 9'a, 9'b of the third or last rod 5', the former of which is inserted in the groove. 10'a and the latter in the note 10'b.

6 145830

If the shaft 11 'is rotated clockwise by means of the crank 12' to lift the armor, the square section of the shaft 11 'causes the inclusion of the rods 5' on these. Thanks to said rod connections, this first results in the opening of the slot. 6 'between the armor rods 5' inserted in the groove 8 'and then a lifting of this armor part. The rods 5' thus extend continuously into the square section of the shaft 11 'as the pins 9'a, 9 * b move, thanks to their setting. in the accompanying notes 10'a, 10'b. The rods 5 'which extend from the shaft 11' into the niche 2 'are, by means of the end pins 9'a, 9'b, found only on each other rod, thus passed in the groove sections extending parallel to each other downwards, that as shown in FIG. 2, a breakdown of the armor occurs after every other rod.

At the lower end of the niche 2 ', the first two neighboring rods 5' lie side by side, while the next two rods fold back 180 ° on the first two rods, which by fully raised armor leads to two standing next to each other bar stacks 5'a, 5'b, fig. 1, which closes the niche 2 'below. The relatively narrow niche 2 'is thereby optimally filled. When the shutter is to be lowered, the take-up shaft 11 'is rotated counterclockwise, thereby forcibly leaving the rods left behind on the square sections and thus the entire armor, so that the armor is lowered. Between the rods 5 'which continue to depart from the shaft 11' in the groove 5 'carried in the groove 8', the luminous gap 6 ', again mentioned, opens again, which naturally remains open when the turning of the shaft 11' is stopped as soon as the lower rod 5 '( or end rail) has reached its lower end position. Thus, the aperture slot 6 'may, if desired, remain open or closed.

In the embodiment shown in FIG. 4, which is similar to that of FIG. 1, there is in place of the drive shaft a non-driven guide roller 21 'which is cylindrical in section or over its full length. As a substitute for the side faces of the square sections which in the first embodiment act as a forced guide and carry, here belong to the arcuate shape of the guide portion 21 'leading portion of the grooves 10'a, 10'b or the radial inner rod support 21' a corresponding arcuate guide plate 22 '. The submersion of the hood from the one shown in FIG. 4, where the rods 5 'form two adjacent stacks 5'a, 5'b of the niche 2 ", are here done by hand pull in the end rail of the armor. The armor is raised analogously by upward thrust, the guide plate 22r ensuring that the rods 5 ', of which again only every other is forcibly inserted in the grooves 10'a, 10'b by the end pins 9'a, 9'b, slide over the guide roller 21' without being lifted off.

FIG. 5 shows a variant of the embodiment of FIG. 4. As a pulling means for lifting and lowering the armor in the roller blind, which is identical to that of FIG. 4, there is here an endless chain 23 '(or V-belt or cable) which can be driven by means of a crank 12' via a sprocket seated on the roller 21 'and which is passed over an upper and lower guide wheel 24' a, 24'b.

The lower rod 5 "(or the associated end rail) is connected to the chain 23 'by means of a carrier 25'. Pivoting of the roll-up roller 21 'in a clockwise direction causes a lifting of the armor, and in a counterclockwise direction a lowering of the armor.

In the foregoing, there are disclosed roller blinds with relatively narrow rods (few cm) which can be placed in the form of said double stack in any normal window niche. However, versions with relatively high spells are also available. In this case, however, the usually narrow fall niches only allow folding of the armor into one wide stack corresponding to the bar height.

FIG. 6 shows such an embodiment. The similarly formed rods 35 'are here approximately twice as high as the rods in the aforementioned embodiments. Similarly, fewer rods are required to form an equally high end armor. Each rod 35 'here has end pins 39' which are adjacent to the grooves 8 'in a groove 40' which is passed around the upper bypass location and which extends to the lower niche opening. This groove 40 'includes the forcing of the rods and as a driving means at the relaying site a shaft 41' having triangular cross sections over its full length or at least sectionally. The lateral edge length of this cross-section corresponds approximately to the rod height, and the arcuate section leading to the groove 40 'approximately follows the inscribed circle for said triangular cross-section. By rotating the take-up shaft 41 'for lifting the armor (clockwise in Fig. 6), each of the running rods leans against a side face of the shaft 41' and is taken therefrom, while the rods 35 'exiting from the shaft 41' being their taping alternately folds to one and the other side of the niche 21, lying under their own weight in a corresponding folded stack 35'a.

8 145830

Thanks to the explained design method, with a spell of uncomplicated structure, it is possible to make full use of the space available in the niche for stacking the raised roller blind. The only condition is that the rod joint allows an unobstructed folding of the armor. In order to provide clearing slits, they are slidable relative to each other, e.g. is shown in FIG. 7 or at 45 'in FIG. 8, particularly suitable. In the FIG. 8, there are a e.g. the lid or transparent intermediate profile 47 'as connecting guide means allowing a two-sided folding. Elastic flexible intermediate profiles can also be used. As shown in FIG. 9, however, profiled rods 55 'can be used which are interconnected by means of edge rings 57'a, 57'b.

The FIG. 10-13, roller blind shown has an armor formed by hollow rods 1a, 1b, 1c, 1d of e.g. metal or plastic. The consecutive rods are connected to each other by means of hook connecting links 2a, 2b in such a way that they can move confined from and to each other, and as usual are guided in lateral guide notes 3. As shown in detail in FIG. 16 and 17 and schematically in FIG. 10-13, two connecting links 2b are followed after every two connecting links 2a. They differ at the possible angle of cracking at any time, where the joints 2a and 2b allow a 180 ° cracking or folding of the associated rods, the joints 2a allowing a cracking or folding to one side and the joints 2b a cracking or folding to the other side. An upper shaft 4 is arranged in the upper steer axis a for the armor, e.g. can be operated by a drive device, using a hand crank for the drive. On this shaft 4 there are arranged square sections 5 of irregular cross section, i.e. a cross section which is asymmetrical with respect to axis a. The arrangement is arranged so that the rods 1b which lie between two joints 2b, which can be broken 180 ° inwards, are intended to abut the smallest square side 5b, while the rods ld lying between two joints 2a which can be broken 180 ° outwards are intended to abut the largest square side 5d. Accordingly, the rods 1a will lie on one (5a) and the rods 1c on the other (5c) of the two remaining square sides. The rods 1a and 1c lying between two different links 2a, 2b have guide pins 6a, 6b on their end sides. The pins 6a on the rods 1a lie on the inside of the rod center plane, while the pins 6b on the rods 1c lie on the outside, i. that, relative to the rod center plane, they are disposed for pins 6a. In the region of the diverting portion, from the common vertical side guide groove 3 of pins 6a, 6b, two separate guide grooves 3a, 3b leading downward at a distance corresponding to the distance between pins 6a, 6b are joined by two adjacent standing stacks of horizontal bars 1a, 1b and 1c, 1d respectively. In order to obtain a safe inclusion of the rod armor over the override location, a fixed carrier 7 is provided on the end portion of the shaft 4. Each carrier arm is designed as a fork whose radially shorter fork 7a is intended to include the pins 6a and whose radially longer fork 7b set at an angle deviating from 180 ° from the fork 7a is intended to include the pins 6b.

It will be understood that this coercive carrier 7 is probably advantageous but also be omitted.

FIG. Figure 10 shows the roller blind's armor in its upper position, releasing the window opening, and the body of the armor not being folded behind the bypass location to two adjacent stacks (not shown in Figures 10 and 13 of the main patent).

When turning the shaft 4 in a counterclockwise direction, the blind is lowered. As shown in FIG. 11 engages the carrier fork 7a during the first quarter turn over the pin 6a on the rod 1a extending on the square surface 5a, while the fork 7b releases the pin 6b on the rod 1c exiting the square surface 5c. It will be seen that the carrier 7 is in continuous engagement with at least one pin 6a or 6b (see also the additional quarter turn of the shaft 4 shown in Figs. 12 and 4), so that not only a secure inclusion of the armor is achieved by means of of the square section 5, but also ensures the correct position of the individual rods on the square faces of these. When lifting the hood, ie. rotating the take-up shaft 4 in a clockwise direction, the rods according to the figure order 4, 3, 3, 1 are moved in the reverse direction over the guide point.

As shown in FIG. 14 and 15, the square sections 5 can also be replaced by cylinder sections 15. The pins 6a, 6b in the grooves 3a and 3b on the rods are guided by the carrier 7 forcibly over the oversteer location, with at least one pin engaging the associated carrier fork. Incidentally, this roller blind is identical to that of FIG. 10-13. In this connection, it should be noted that here, where there is a lack of flat support surfaces for the rods, an unwanted placement or avoidance of the rods is prevented upwards by the roof-shaped outer flange 3c of the lateral guide note 3.

FIG. 16 and 17 show, on a larger scale, an embodiment of the rod joint in the embodiment shown in FIG. 10-15 showed roller blindness. Each two interconnected connectors 20, 21 of the hollow rods 1a-d form the joints 2a, 2b between the rods. The members forming the joints 2a have one relative to the rod location in the armor of FIG. 10, an inwardly directed cracking site and the members 20, 21 forming the joints 2b have an outwardly cracked site. The members 20 form in the interior of the hollow rods an elongated loop in which the other members 21 are suspended in such a way as to allow a limited movement of these members and thus the rod's rod in the direction towards or away from each other. This not only allows you to get clearing and air slots in the closed jalousie armor, as well as being assured of an impeccable run of the rods over the override location.

FIG. 18 and 19 show a simpler joint connection between the rods. While the freely spreading end portions of the means 21 are clamped in the rear transverse rib of the hollow rods in the embodiment shown in FIG. 16 and 17, each rod in the embodiment of FIG. 18 and 19, an additional center rib is attacked by a hinge joint 30. In each of these hinge joints 30, an elongated chain link 31 is engaged in the region of the rear transverse rib of the hollow rod 11, which in turn is This way, not only creates the necessary stave displacement, but also ensures that the armor can be broken or folded impeccably.

In the examples described, it is assumed that a drive for the roller blind is used e.g. manually operated drive device driving the shaft 4. However, there is also the possibility that a direct lifting and lowering of the armor can be made by pushing it upwards or pulling it downwards. However, since the rods at the oversteer point, especially by the upward thrust of the armor, seek to dodge upwards, ie. that instead of turning with the square sections, they seek to lift up from them, the shaft of the axle of the embodiment shown in FIG. 20 shown as a spring roll. Here, square sections 5 are attached to a cylinder 44a, which is connected by means of a spring 44b 145830 11 to a pivotally mounted shaft 44c in such a way that rotation of the cylinder 44a in a counterclockwise direction (lowering of the armor) tightens the spring 44b, while lifting the armor (turning the cylinder 44a in a clockwise direction) takes place, thus releasing the spring 44b. Moreover, the guides 3, 3a, 3b correspond to the square sections 5 and the carrier 7 to the corresponding elements in the example of FIG. 10-13. Here, too, every other rod 41 is provided with an inner or outer tab 6a, 6b for cooperation with the guide notes 3a, 3b and the carrier forks 7a, 7b. The rods 41 shown in this variant are designed as hollow rods with through-cut, back-cut edge slots 41a. In these edge slots, similarly profiled end portions of elastically flexible intermediate joints 42 are inserted, thereby forming a flexural joint between the rods. An internal extension of the leading edge slot 41a of each rod has such depth that, by a more or less deep penetration of the intermediate joint, the rods 41 are allowed to move confined to and from each other. Thereby, it is possible to impeccably run the rods over the override site and a cracking or folding of the armor to the desired stacks. The connecting joints 42 may have slots to enable the formation of air openings at closed armor.

As will be seen from the foregoing, in addition to the bearing shaft bearing shaft, different guide notes are required, which match exactly to each other and to the shaft shaft. Pig.

21 and 22 show here a particularly suitable solution. On both sides of the blind there is a one-piece structural member 50, on which is provided notes 3a, 3b and bearing 54 for the shaft shaft from the side note 3. Behind the switching point, the two notes 3a, 3b open freely downwards. The lower end of these notes serving as a stack support forms a rib on a U-shaped bracket 55, the two branches of which are slightly resilient and have inwardly projecting tongues 56 in the region of their end edge. Outside of each of the two grooves 3a, 3b, a pair of projections 57a, 57b are arranged on the rear wall of portion 50. During assembly, the bracket branches are pushed upwardly over these protuberance pairs until the tongues 56 engage lockingly in one or the other pair of protuberances. Since the height of the fall niche is limited and must be fully utilized for stacking the rod armor, the bracket 55, with its base, mounted with jealousy, shot up to a location immediately below the grooves 3a, 3b, whereby

Claims (10)

The tongues 56 engage the upper pair of projections 57a. The arrangement is arranged so that at the raised armor its lower rod is still in the side note 3, and the stacking chamber formed over the bracket floor is just sufficient for receiving the rods which are behind the override point. However, in order to be able to place the entire armor in this stacking chamber (i.e. when the armor is fully retracted at the rear), the bracket 55 can be lowered slightly, whereby its tongues 56 engage the lower pair of projections 57b. The bonnet thus disposed in the enlarged stack shaft allows for the jealousy to be carried with the shaft shaft and the lateral structural members 50 as a compact unit and mounted in the niche. FIG. 23 shows a pivot drive 60 associated with a drive 61 for driving the jaw shaft 4. Between the drive and the pivot there is a square rod 62 with axially displaceable impact nut 63. The nut 63 engages an external thread in an internal six by means of an external thread. edge bushing 64, in which adjustable stops 65 are provided. When turning the rod 62 by means of the crank, the rotating nut 63 shifts according to the rotation direction to one or the other of the two stops 65, thus limiting the possible speed of the crank. or the shaft 4. 1. Rolling shutters for windows or similar building openings, which are journalled in vertical side notes and consist of rods which form an armor and are pivotally connected to each other, and the rods which are passed over an upper switching device are diverted approx. 180 ° and behind the switching device can be moved downwards and, by zigzag folding, is stacked to a lower package supported by horizontal rods, characterized in that the side notes (8 ', 3) at the masonry sides extend into the the drop niche (2 ') formed between the window seam (11) and the window plane (31), and wherein the switching device, which is designed as a continuous shaft shaft (11', 21 ', 4, 44c), is arranged that the shutter device and the shaft shaft respectively has at least two spaced-apart sections spaced apart from the shutter width, designed as a flat support for the steerable rods (5 ', 45', 55 ', 1a, 1b, 1c, 1d, 41) and in collaboration with the shaft axis via over approx. 180 ° extending rod guide means (10'a, __j 13 145830 10b and 3a, 3b and / or 22 'and 22 ", respectively) serve as a forced support that prevents radial lifting of the rods and that the rods behind the shaft shaft moves downwardly from it, by a pair of zigzag folds - which are effected, for example, by means of side notes (10'a, 10'b and 3a, 3b, respectively) leading the rods at the ends, and / or by means of joint connections ( 7'a, 7'b and 2a, 2b, respectively, which can be alternately broken down 180 ° during downward travel and prevented from being broken beyond 180 ° - can be stacked into a vertical, vertically supported side support arrangement stacked on the side of the pull-up shaft. , horizontal stakes and stave pairs (5'a, 5'b), respectively, which stack terminates the fall niche (2 ') below. Roll roller blind according to claim 1, characterized in that the actuating shaft associated with pivot propellants (12 ', 60. and serving as support and carrier for the rods) includes means such as rod guide notes (10'a, 10'b , 3a, 3b) and / or an outer guide plate (22 ', 22 ") which prevents lifting of the rods passing the shaft shaft. Roller blind according to claim 2, characterized in that the pull-up shaft (11 ', 4) has at least sectional cross-sections with an edge length substantially corresponding to the rod height, so that the surfaces of the cross-sections during the lifting and lowering of the blind (4') serve as a forced bottom. the rods, which pass through the control point. Roll roller blind according to claim 1, characterized in that each rod (35 ') has end pins (39 *) which run in the region of the override point in a lateral guide groove (40') which subsequently leads to the lower drop niche opening, and that at the override location there is a pull-up shaft (41 ') which is connected with pivot propellants (12') and has at least sectional triangular cross-sections with a head length mainly corresponding to the rod height, and which for the purpose of lifting and lowering the jealousy serves as a forced support. for the rods (35 ') at the bypass location. Roll roller blind according to one of claims 1-3, characterized in that each other rod (5 'and 1a, 1c, respectively) of the roller has end pins (9'a, 9'b and 6a, 6b, respectively) which with respect to a vertical middle plane through the submerged jalousy is arranged alternately laterally perpendicular to each other on the rods and in the region of the shaft shaft (11 ', 4) is guided in separate, uniformly extending guide nos (10'a, 10'b, 3a, 3b ), which subsequently run apart at a distance which corresponds mainly to the height of the rod, as it. radially inner guide groove (10'b, 3a) is retracted below the take-up shaft (11 ', 4), after which both grooves are parallel to one another until a horizontal stack support (55) is located in the region of the lower drop niche opening. Roll roller blind according to claim 5, characterized in that the shaft shaft (11 ') has at least two square sections spaced axially apart and that the guide grooves (10'a, 10'b) of the end pins of the rods (51) (9'a, 9'b) at the override location follows a circumscribed and inscribed circle, respectively, for the square cross section of the shaft shaft (11 '). Roll roller blind according to one of claims 1-5, characterized in that the shaft shaft (21 ', 4) which serves as support for the rods is at least sectionally circular cylindrical and that in order to prevent lifting of the rods from on the shaft shaft is an outer rod guide plate (22 ', 22 ") which extends over a steer angle of about 180 °. Roll roller blind according to claim 7, characterized in that the pull-up shaft (21 ', 4) is connected partly to a pivot drive means (12') and partly via an endless pulling means (23 ') with the lower rod (51) and the blind (41) respectively. end rail. Roll roller blind according to one of claims 1-8, characterized in that a carrier (7) which supports the rods during a part of their transport around the oversteer location and moves together with the rods and which is fixedly fixed to the shaft shaft (4, 44c) ), have radially unequal long forks (7a, 7b) set at a deviating angle of 180 ° from each other, and each intended for coercive cooperation with one and the other guide pins (6a, 6b), respectively. Roll roller blind according to one of claims 1-9, characterized in that the square shaft (4, 44c) has fixed square sections of irregular cross-section and different edge length and that every other rod (1a, 1c) has a guide pin (6a, 6b) in such a way that the guide pin (6b) of the rods (1c) to be passed along a radially outer guide groove (3b) around the bypass location is disposed outside the rod center plane, while the guide pin (6a) of the rods (1a) which is to be passed along a radially inner guide groove (3a) located within the rod center plane.