EP1087094B1 - Roller shutter for openings of buildings, said opening shapes differ from the rectangular shape - Google Patents

Abstract

The blind has a winding shaft (6) rotatably held by at least one support plate (8) parallel to an upper inclined edge of the window, onto which an inclined series of lamellae can be wound. The bearing plate angle can be adjusted by a hinge joint (52) at the upper end (54) of a guide rail (2). A support unit near the upper end of the guide rail supports the lamellae (22) at least along part of their path between leaving the lamella guide rail and being wound on the winding shaft against the weight of the lamella acting in the longitudinal lamella direction. The support unit forms a circular-arc shaped curve parallel to the bearing plate and has a rigid curved plate (66), which guides the lamellae from the guide rail to the winding shaft. The curved plate is formed as a standardised part with a maximum inclination angle, to mount the roller blind. The actual required inclination angle can be formed by removing an area of the curved plate of the correct size.

Description

State of the art

The invention relates to a roller shutter for deviating from the rectangular shape forms of building openings, in particular for trapezoidal building openings, according to the preamble of claims 1, and 5.

Such a roller shutter is from the DE 37 25 380 C2 known. The well-known shutters comprises a longer and a shorter guide rail, at the ends in each case an obliquely arranged winding shaft bearing bearing plate is arranged. The roller shutter is made of articulated interlocking metal and plastic profiles and has because of the diagonally arranged winding shaft in addition to extending over the entire width opening slats also short slats that do not extend over the entire opening width and end freely with its lower end at the bottom of the tank , In order to prevent the short lamellae from dislodging from the lamellar structure as a result of the component of gravity acting in the lamella longitudinal direction, they are held with their upper end in the longer guide rail. For this purpose, lamellae are provided, which engage behind a running slot in the longer guide rail. In order to continue to ensure after leaving the longer guide rail supporting the short slats, according to the known document as a stretched between the end portion of the guide rail and the winding shaft, together with the slats wound on the winding shaft belt formed support means is provided, wherein the support means with the bearing plate connected and running parallel to the bearing plate strip edge serves as a support edge for the lamellar lugs. The ends of the slats are therefore initially guided along the vertical guide rail and then aligned in a plane parallel to the oblique bearing plate to finally be wound flush with the winding shaft can.

So that as many inclination angles of upper edges of building openings can be detected by a single type of roller shutter, the bearing plates are connected to the associated guide rails in each case by means of a lockable joint. Then, the shutter can be used pre-assembled in the building opening with a preset preset angle of inclination of the winding shaft. In order to pivot the support means together with the bearing plate, a hinge joint is present at the transition between the slot of the longer guide rail and serving as a support edge, prestressed belt, wherein an articulated arm in the guide rail and the other articulated arm is attached to a pulley for the belt.

In order to get from the vertical slot of the guide rail to this oblique band, the lamellae must therefore rotate around the hinge joint, which forms part of its leading edge. Because of the relatively small diameter of such a hinge joint, the blade ends undergo an abrupt change of direction when aligned from the vertical in a plane parallel to the bearing plate. This can cause an uneven running of the shutter, which reduces the quality impression. In addition, there is a risk that due to the kink-like discontinuity in the leading edge of the lamellae with this disengage and tilt.

The present invention is therefore an object of the invention to provide a shutter of the type mentioned above, which is adjustable to any inclination angle of the upper inclined edge of the building opening and thereby particularly simple and inexpensive to produce. In addition, a smooth running of the shutter should be guaranteed.

According to the invention this object is achieved by the characterizing features of claim 1 and claim 5.

Advantages of the invention

The roller shutter according to the invention according to claim 1 and claim 5, in view of the smooth running of the shutter because of a gradual transition creating cam or lamella guide rail is an advantageous alternative to the hinge joint of the prior art, which must be circulated by the slats and because of its naturally limited diameter forms a kinky point of discontinuity in the raceway of the lamellae. In contrast, the arc lengths of the cam according to claim 1 and the lamella guide strip according to claim 5 large compared to the scope of known from the prior art articulation of the support means.

Due to the use of a standardized cam as a guideway portion according to claim 1, which is adaptable by separating a corresponding portion of any inclination angle, the stock is limited in the manufacture of the shutter on only a single type of cam. This results in low manufacturing and assembly costs for the shutters.

In addition, the flexible guide strip according to claim 5 adapts to the respective, depending on the slope of the building opening inclination angle of the bearing plate because of their fixed connection to the bearing plate. Since the upper end of the lamella guide rail is connected to the bearing plate, it is forcibly carried on adjustment of the bearing plate in the context of a change in inclination setting during the pre-assembly of the shutter, so that the adjustment of the support device to changed angles of inclination automatically, without the need for further assembly steps would be required. The production of such a flexible guide bar is also very simple and inexpensive.

The measures listed in the dependent claims advantageous refinements and improvements of the claims 1 and 5 invention are possible.

drawings

Fig. 1

eine schematische Vorderansicht eines Rolladens für eine trapezförmige Fensteröffnung;

Fig.2

eine Seitenansicht einer mit einem Gleitschuh und einer Lamellennase versehenen Lamelle;

Fig.3

einen Querschnitt durch eine Lamelle entlang der Schnittlinie III - III von Fig.2;

Fig.4

einen Querschnitt durch eine Lamellennase entlang der Schnittlinie IV - IV von Fig.3;

Fig.5

einen Querschnitt durch die längere (linke) Führungsschiene entlang der Linie V - V von Fig.1;

Fig.6

einen vergrößerten Ausschnitt von Fig.1 betreffend den eine Kurvenscheibe aufweisenden Übergangsbereich zwischen Führungsschiene und Lagerplatte, wobei die Führungsschiene entlang der Linie VI - VI von Fig.5 aufgeschnitten ist;

Fig.7

eine vereinzelte Seitenansicht der Kurvenscheibe von Fig.6;

Fig.8

einen vergrößerten Ausschnitt von Fig.1 betreffend den eine flexible Führungsleiste aufweisenden Übergangsbereich zwischen Führungsschiene und Lagerplatte, wobei die Führungsschiene entlang der Linie VI -VI von Fig.5 aufgeschnitten ist;

Fig.9

eine Schnittdarstellung entlang der Linie IX - IX von Fig.8;

Fig.10

eine aufgebrochene Darstellung des linken unteren Eckbereichs des Rolladens von Fig.1;

Fig.11

eine Einzeldarstellung eines Zusatzgewichts in isometrischer Ansicht.

Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description. In the drawings show:

Fig. 1

a schematic front view of a shutter for a trapezoidal window opening;

Fig.2

a side view of a provided with a shoe and a lamella blade;

Figure 3

a cross section through a blade along the section line III - III of Fig.2 ;

Figure 4

a cross-section through a lamellar nose along the section line IV - IV of Figure 3 ;

Figure 5

a cross section through the longer (left) guide rail along the line V - V of Fig.1 ;

Figure 6

an enlarged section of Fig.1 concerning the cam plate having a transition region between the guide rail and bearing plate, wherein the guide rail along the line VI - VI of Figure 5 is cut open;

Figure 7

an isolated side view of the cam of Figure 6 ;

Figure 8

an enlarged section of Fig.1 concerning the flexible guide rail having transition region between the guide rail and the bearing plate, wherein the guide rail along the line VI -VI of Figure 5 is cut open;

Figure 9

a sectional view taken along the line IX - IX of Figure 8 ;

Figure 10

a broken view of the left lower corner of the shutter of Fig.1 ;

fig.11

a single representation of an additional weight in isometric view.

Description of the embodiments

At the in Fig.1 A total of 1 designated blinds is according to a preferred embodiment, a trapezoidal shutters for so-called studio windows with a horizontal lower edge of the window, two different long vertical window edges and at an angle α inclined, parallel to the roof slope extending upper window edge.

The shutter 1 according to Fig.1 Accordingly, a longer (left) guide rail 2 and a shorter (right) guide rail 4 and an obliquely arranged according to the roof inclination α and indicated by a dashed line winding shaft 6, between two hinged at the upper ends of the guide rails 2, 4 bearing plates 8, 10 is rotatably mounted and driven. According to Figure 9 the winding shaft 6 is preferably formed as a profile bar with polygonal cross-section. The two bearing plates 8, 10 together with the winding shaft 6 and side cladding sheets a roller shutter box 12th

On the winding shaft 6, the upper end of one of an arbitrary number of mutually interlocking, preferably designed as a hollow sections 14 slats 14 is attached, the slats 14 are arranged both in the open and closed blinds 1 parallel to the upper edge of the window and therefore also are inclined at an angle α to the horizontal. By rotating the winding shaft 6, e.g. by means of an electric drive, the roller shutter 16 is wound on the winding shaft 6 as a spiral-shaped armor winding 17.

As based on Fig.1 can be seen, the upper lamellae 18 extend over the entire width of the window and are guided with their ends in two guide rails 2, 4 while the lamellae are formed below the last, extending over the entire width of the window slat 20 as a short slats 22 and only with her left end in the longer (left) guide rail 2 are guided and with their beveled right ends forming the horizontal lower edge 24 of the roller shutter shell 16 free ends.

How out Fig.2 As can be seen, the right ends of the extending over the entire width of the window slats 18 are in a running slot of the shorter (Right) guide rail 4 guided sliding shoes 26, which are preferably formed as laterally inserted into the hollow sections plastic body. The sliding shoes 26 slide during the winding operation of the roller shutter 16 on the winding shaft 6 after exiting the slot of the shorter (right) guide rail 4 on this guide rail 4 associated right bearing plate 10 in a spiral path and consequently support the fins 18 on the right bearing plate 10th against the acting in the longitudinal direction of lamellae component of gravity. Alternatively, however, could also be provided with a co-rotating with the winding shaft 6, arranged parallel to the right bearing plate 10 disc on which the shoes 26 come to rest resting. The sliding blocks 26 are rounded frontally, so that the blades 18 can take any angle α to the horizontal within a large angular range, without the risk that they wear and promote friction on an edge.

The left ends of the short slats 22 are provided with at least one preferably perpendicular to the slat plane, a leading edge 28 of the longer (left) guide rail 2 embracing lamellar lug 30 through which the slats 22 are held positively on the longer (left) guide rail 2, as from Figure 3 and Figure 6 evident. The lamellar lugs 30 are formed plate-shaped plastic bodies 32 which are laterally inserted into the rectangular hollow profiles ( Fig.2 ), and preferably in the guide rail 2 nearest corner of a slat located in inclined mounting position 22 are arranged. The pin-shaped lamellar lugs 30 therefore form rotary poles, around which the lamellae 22 can be pivoted in the plane of the roller shutter shell 16. According to Figure 4 the cross-sectional profile of a lamellar lug 30 is approximately circular-segment-shaped, wherein the surface 34 facing the guide edge 28 of the guide rail 2 is arc-shaped, so that in this way also a large number of low-friction angular positions relative to the leading edge 28 is given. The extending over the entire width of the window, longer slats 18 have at their left end, although an inserted plastic body 32, but no lamellar lug 30, since they are already supported by their sliding shoes 26 in the shorter (right) guide rail 4.

As seen from the cross-sectional view of Figure 5 shows, the longer (left) guide rail 2 and the shorter (right) guide rail 4 are formed as a hollow profile and each include one with respect to the width of the roller shutter 16 outer guide channel 36 and an inner, accessible from the roller shutter 16 through an opening 38 chamber 40th in that between the outer guide channel 36 and the inner chamber 40 there is a slot 42 extending in the longitudinal direction of the guide rail. In the outer guide channel 36 of the guide rail 2, an additional weight 44 is guided longitudinally displaceable in the inner chamber 40 mehrnutige, preferably made of PVC inserts 46 are fitted, which on the side surfaces in the longitudinal direction of the guide rail 2 extending, seen in the plane of the roller shutter 16 in a line arranged one behind the other guide grooves 49, the Nutenränder of the lamellae 30 embraced guide edges 50 represent the short lamellae 22, which can protrude through the opening 38 into the interior of the chamber 40, as well as from Figure 6 you can see. The lamellar lugs 30 protrude perpendicularly, for example, in an outer guide 48 of the preferably three guide grooves 49, which are symmetrically distributed to the two side surfaces of the chamber 40 to each other to use the guide rail 2 universally, for example, for a shutter, its longer Guide rail is arranged on the right side. In addition, the mehrnutigen PVC inserts 46 can be used as a receptacle for other insertion parts, eg for a Gleiteintage for guiding the slats-Gleitschuhe 26 in the shorter (right) guide rail.

According to Figure 6 the left bearing plate 8 by means of a hinge connection, preferably held by a hinge joint 52, at the upper end 54 of the longer (left) guide rail 2 adjustable in angle, the hinge axis of rotation 56 extends substantially horizontally and perpendicular to the winding shaft 6. A lower articulated arm 58 of the hinge joint 52 is fixed in the outer guide channel 36 of the longer (left) guide rail 2 and the upper articulated arm 60 on the left bearing plate 8. The end face 62 of the longer (left) guide rail 2 is beveled according to the inclination α of the winding shaft 6, preferably by an oblique saw cut. In contrast, the leading lamellae 30 ends mehrnutige PVC insert 46 at right angles to the guide rail longitudinal extension and at a distance from the inclined end face 62 of the guide rail 2. The lower link arm 58 of the hinge joint 52 is drawn into the guide channel 36 so deep that on the one hand, the axis of rotation 56 of the hinge joint 52nd is concealed and on the other hand, the left bearing plate 8 on the underside of the edges of the upwardly open, oblique face 62 of the longer (left) guide rail 2 can be supported. The shorter (right) guide rail 4 is also attached to the right bearing plate 10 by means of a hinge connection, so that the inclination of the entire roller shutter box 12 relative to the guide rails 2, 4 is adjustable according to the current roof pitch.

To support the short slats 22 at least along part of their path between leaving their assigned guide groove 48 in the longer (left) guide rail 2 and the recording on the winding shaft 6 against the acting in the longitudinal direction of lamella component of gravity is one in the region of the upper end 54th the longer (left) guide rail 2 arranged support means 64 is provided. As Figure 6 shows, the support means 64 comprises a preferably made of plastic, in a direction perpendicular to the axis of rotation 56 of the hinge joint 52 extending cam 66. At the lower end of the cam 66 is a pin 68 integrally formed, as seen from the slat outer guide groove 48 inserted into the next inner, middle guide groove 70 of the guide rail 2 in Führungsnutlängsrichtung and there, for example: is secured by a screw.

In the cam 66, a guide groove 72 is also formed, which at the start has a lamellenführenden the guide rail 48 of the guide rail 2 flush, straight and vertically extending portion 74 and the end has a substantially arcuate, a curve 76 forming portion. As in the case of the guide rail 2, the edge of the guide groove 72 forms a guide edge 78 for the lamellar lugs 30 of the short lamellae 22. The curve 76 of the guide groove 72 is preferably long, in order to ensure a smooth and smooth transition of the short lamellae 22 from the vertical guide rail 2 to the opposite to allow obliquely arranged winding shaft 6.

By way of illustration is in Figure 6 a short blade 22 is shown, which moves during a winding operation in the direction of the winding shaft 6 and the lamellar nose 30, the guide edge 78 in the view shown from behind engages. The cam 66 is completely received in the upper end 54 of the longer (left) guide rail 2, wherein its upper end 80 adjacent to a parallel to the winding shaft 6 separating plane 82 between the guide rails 2, 4 and the shutter box 12, on which the bearing plates 8, 10 stand up vertically. As a result, no parts protrude from the longer (left) guide rail 2, which could be damaged during assembly of the roller shutter box 12. The parting plane 82 is generated by the upper ends 54 of the guide rails 2, 4 are beveled according to the inclination α of the winding shaft 6. The roller shutter box 12 can then be placed on the correspondingly beveled upper end face 62 of the guide rail 2 by inserting the lower articulated arm 58 into the guide channel 36. An end portion 84 the curve 76 is perpendicular to the parting plane 82 that is coplanar with the oblique face 62 of the longer (left) guide rail 2, with a tangent to the end portion 84 of the cam 76 being substantially parallel to the bearing plate 8.

In order to keep production costs limited for the production of cams 66 for different angles of inclination α, production is limited to the production of a single standard cam 86, at the upper end 80 of which a curve 76 is formed which corresponds to a maximum possible inclination α of the lamellae 14 corresponding arc angle - eg 45 degrees according to Figure 7 - having. Thereafter, the unnecessary curve of the curve 76 is separated by sawing the upper end 80 of the cam according to a selected inclination α, for example. The end portion 84 of the cam 76 opens preferably perpendicular to the upper end 80 of the cam 66 and in the parting plane 82, so that the left lamella ends of the short lamellae 22 are already aligned when leaving the cam 66 in a plane parallel to the bearing plate 8. In Figure 7 For example, dashed lines 88 are shown for angles of inclination α in the range of 5 degrees to 45 degrees, which extend radially from a center 90 of the arcuate curve 76 and along which the upper end 80 of the standard cam 86 is separated.

The cam 76 of the cam 66 is continued by an adjoining in the parting plane 82 with a blunt abutting slat guide channel 92, which is fixed to an associated with the left bearing plate 8 bearing block 94.

Instead of a rigid cam 66 can according to Figure 8 the support means 64 include a flexurally elastic guide bar 96. A lower end of the guide rail 96 is fixed in the longer (left) guide rail 2, characterized in that a molded pin 98 in which of the lamellenführenden Guide groove 48 seen from next inside, middle guide groove 70 of the guide rail 2 is inserted in Führungsnutlängsrichtung and secured there, for example by means of a screw. The upper end 100 of the guide bar 96 is connected by means of the bearing plate 8 fixed to the bearing block 94 with this in communication and is located substantially in the inclined plane of separation 82 between the guide rail 2 and the roller shutter box 12. This measure has the consequence that the flexible guide bar 96 between its two ends 98, 100 depending on the respective inclination α of the winding shaft 6 is bent substantially circular arc. The curved guide strip 96 is preferably as long as possible to allow a continuous and kinkless transition of the slats 14 of the guide rail 2 on the winding shaft 6, and is invisible housed in the upwardly open end 54 of the guide rail 2 from the outside. The radially outer surface 102 of the curved guide rail 96 then forms a leading edge 104 for the lamellar lobes 30 as an aligned extension of the leading edge 50 of the lamella guiding guide 48 of the longer (left) guide rail 2. Illustrated in FIG Figure 6 shown with X, X 'and X "lamella positions of a short blade 22, which moves during a winding operation in the direction of the winding shaft 6 and the lamellar nose 30, the guide edges 50, 104 in the view shown engages from behind.

The bearing block 94 carrying the upper end 100 of the guide strip 96 is fixed relative to the bearing plate 8 on a preferably linear guide 106 which, for example, includes a threaded rod 108 which projects preferably perpendicularly from the bearing plate 8 and into a through bore provided in the bearing block 94 with an internal thread is screwed. By rotating the threaded rod 108, the position of the bearing block 94 in a direction perpendicular to the bearing plate 8 is then adjustable. As the upper end 100 of the guide bar 96 is preferably tangential in the bearing block 94 opens, the straight end surfaces of the short slats 22 are aligned when leaving the guide rail 2 in a plane parallel to the bearing plate 8, as the slat position X "in Figure 6 shows. With the bearing block 94, inter alia, the winding position of the short blades 22 is adjustable relative to the winding shaft 6 and the bearing plate 8 to influence the winding behavior.

The support means 64 also includes in the winding direction of the cam plate 66 and the slat guide rail 96 subsequent, elastic slat guide channel 92 which is radially spaced from the winding shaft 6 and in the in Figure 9 extending undeformed initial state shown by solid lines extends substantially tangentially to the circumferential direction. The slat guide channel 92 is formed between two mutually parallel, with their guide rail side ends 109 in the bearing block 94 firmly clamped and projecting perpendicularly out of him guide channel strips 110, which lie in undeformed initial state in planes that are parallel to the winding shaft.

In conjunction with the rigid cam 66 of Figure 6 and Figure 7 The adjustable bearing block 94 also serves to bring an initial section 112 of the lamella guide channel 92 held by it in alignment with the end section 84 of the cam 76 of the standard cam plate 86, the upper end 80 of which has been obliquely separated according to the respective lamellae slope α. For if the blade inclination α and thus at the same time the inclination of the bearing plate 8 is varied, then moves the initial portion 112 of the slat guide channel 92 along a first circular path about the axis of rotation 56 of the hinge connection 52 between the bearing plate 8 and guide rail 2 during the end portion 84 of the curve 76 at the corresponding sawn end 80 of the cam 66 is located on an imaginary second circular path around the center 90, wherein the two circular paths in the separation plane 82 must be tangent to connect there to each other. This connection is then by a corresponding position adjustment of the bearing block 94 can be produced. In addition, with the help of the adjustable bearing block 94 manufacturing tolerances between the guide rail 2 and the mounted on it on them roller shutter box 12 can be compensated to ensure a continuous transition between the guide groove 72 of the cam 66 and the slat guide channel 92.

As based on Figure 6 It can be seen, the bearing block 94 is set in a direction transverse to the end portion 84 of the cam 76 and parallel to the parting plane 82 such that the end portion 84 of the cam 76 is aligned with a leading edge forming a longitudinal edge 114 of the winding shaft 6 nearest guide channel strip 116. In the case of the slat guide rail 96 of Figure 9 As a result, the lamellar lobes 30 of the short lamellae 22 are guided on the longitudinal edge 114 of the guide channel strip 116 by a gripping action, as is evident from the lamella position X "in FIG Figure 8 and Figure 9 is shown clearly, while the short blades 22 are aligned even in a plane parallel to the winding shaft 6 and extending through the slat guide channel 92 therethrough.

When aligning the blade ends in the plane parallel to the bearing plate 8 find sliding along the joints between the slats 14 in the longitudinal direction of the slat, whereby the alignment movement counteracting friction forces arise. As a result, especially over the entire width of the window extending, longer fins 18 tend to continue to run in the vertical direction upwards, instead of aligning parallel to the bearing plate 8. In order to support the alignment movement of the lamellae 18, a baffle plate 118 fixed to the bearing block 94 and arranged transversely to the longitudinal extent of the lamellar guide channel 92 is provided, on which the plastic bodies 32 projecting from the left ends of the lamellae 18 are deflected. The baffle 118 is disposed at a distance from the longitudinal sides of the guide channel strips 110, which is slightly larger than the diameter of the lamellar lugs 30 of the short lamellae 22, whereby they can be forcibly guided in the gap 120 formed thereby, as seen from Figure 8 clearly shows.

Since the lamellar guide channel 92 is radially spaced from the winding shaft 6 and the roller shutter 16 is pulled to the winding shaft 6 after winding on the winding shaft 6 after exiting the slat guide channel 92, the short slat 22 supporting, the winding shaft 6 nearest guide channel bar 116th as indicated by dashed lines in FIG Fig. 9 deformed manner deformed, ie the free end 122 of this elastic guide channel strip 116 is - analogous to a wall firmly clamped and loaded by lateral forces beams bent according to the respective diameter of the armor winding to this preferably circular arc, in a preferred manner so far, to the upper End of this guide channel strip 116 reaches almost to the periphery of the armored winding. Because the free ends 122 of the two guide channel strips 110 are connected to each other by a bracket 124, the more distant from the winding shaft 6 guide channel strip 126 is taken and held equidistant to this, so the lamella guide channel 92 in a plane parallel to the bearing plate 8 as a whole arcuately deformed ,

Responsible for the deformation of the slat guide channel 92 is on the one hand acting transversely to him component of the rotation of the winding shaft 6 resulting tensile forces in the roller shutter 16 and the other acting in the same direction component of the weight of the located below the slat guide channel 92 Slats 14, which results in a total positive control of the elastic slat guide channel 92 by the movement of the roller shutter 16.

As a result of the elastic deformation, return forces, which hold the roller shutter armature 16 under tension, result in the guide channel strips 110, as a result of which the lamellar lugs 30 of the lamella guide channel 92 continuous short blades 22 against the leading edge 114 of the winding shaft nearest guide rail 116 are pressed. Due to the higher contact pressure, a leaking of the lamellae 30 is avoided by the leading edge 114 and thus increases the smoothness and safety of the roller shutter 1. Since the slat guide channel 92 is held on the adjustable bearing block 94, its distance from the bearing plate 8 is variable.

In order to maintain the bias even when fully wound roller shutter 16 when the weight of the fins 14 is not working yet, and to support the drainage movement of the roller shutter 16 in this state, the lower end of the roller shutter 16 with the in Fig.10 and Fig.11 shown additional weight 44 can be brought into connection, which is held longitudinally displaceable within the outer guide channel 36 of the longer (left) guide rail 2. The additional weight 44 is formed according to the cross section of the outer guide channel 36 of the guide rail 2 rectangular and long because of its narrowness and the relatively high, required for generating sufficient Panzervorspannung relatively low weight. The elongated additional weight 44 has a from its bottom 128 to its upper end 130 extending in the running direction of the roller shutter 16 running slot 132 which is bounded at the top by a trained as a cross-beam stop 134. In the running slot 132 engages a fixed to a bottom plate 136 of the roller shutter 16 driver 138 and can in it, starting from a lowermost position in which the bottom plate 136 rests on the lower edge of the window, up to an uppermost stop position in which the driver 138th just strikes the stop 134, run along. After installation of the driver 138 on the stop 134, the additional weight 44 is taken from the roller shutter 16, which can then be almost completely retracted into the roller shutter box 12, because the below the bottom plate 136 entrained additional weight 44 outside of the roller shutter box 12, namely in the upper end 54 of the outer guide channel 36 of the guide rail 2 remains. In addition, it is achieved by the illustrated Mitnehmer-Laufschlitzanordnung that the additional weight 44 compensates the loss of effective weight only when it is necessary, that is, when the roller shutter 16 is partially or completely wound on the winding shaft 6. In contrast, the driver 138 with closed or almost closed shutter 1 when the effective weight of the depending slats 14 is sufficient, with the additional weight 44 disengaged. By the distance Y of the stopper 134 from the lower edge of the window or from the bottom 128 of the additional weight 44 is thus determined from which closing or opening degree of the shutter 1, the additional weight 44 is effective, the distance Y can be easily adapted to the respective requirements ,

Furthermore, the roller shutter 16 can be completely unwound for closing the window opening, since after reaching the stop position, the elongated additional weight 44 is seated on the bottom 140 of the guide channel 36 and the driver 138 can run beyond this stop position in the slot 132 so far down to the bottom plate 136 has reached the bottom of the window.

As indicated by the arrow in Figure 10 indicated, the driver 138 is articulated eccentrically on the bottom plate 136, wherein its longer part 142 to the additional weight 44 has. Since the roller shutter 16 is inserted during assembly from above into the longer (left) guide rail 2, the driver 138 can then rotate in an approximately vertical position when it abuts against the stop 134 of the additional weight 44 from above. After passing the stopper 134, the greater weight of the longer part 142 ensures that the catch 138 pivots counterclockwise and folds into a horizontal operative position, in which he then by an in Figure 10 schematically indicated, attached to the bottom plate 136 stop 144 is held.

As based on Figure 5 . Figure 6 and Figure 8 can be seen, in the longer (left) guide rail 2, preferably three cross-sectional equal, equidistantly arranged successively guide grooves 49 are formed. Because with increasing inclination of the fins 14 the risk that their upper ends laterally protrude from the chamber 40 of the longer (left) guide rail 2 and thus create gaps in the roller shutter 16, it is provided that at larger angles of inclination α the fins 14 in one be seen from the roller shutter armor 16 out further out guide groove. The ends of the fins 14 then need not be cut off obliquely, but can be produced by inexpensive 90-degree cuts.

In the example of Figure 8 the lamellar lugs 30 are guided in the outer guide groove 48 seen from the roller shutter 16 from. Since the leading edge 104 of the lamellae guide bar 96 points outward, its pin 98 is inserted from the lamella guiding guide 48 into the next inner one, in the present case inserted into the middle guide groove 70. The inner guide groove 146 can then be provided only for holding the pin 98 and the outer guide groove 48 only for guiding the short slats 22, whereas the middle guide groove 70 can serve either for slat guide or as a pin holder. The distance between the guide grooves 49 from each other is chosen such that their leading edges 50 are always aligned with the leading edge 104 of the blade guide rail 96, regardless of their insertion position. In principle, it is also a Umsteckcken the cam 66 of Figure 6 from the middle guide groove 70 into the inner guide groove 146 possible when the cam 66 is formed narrower than shown in the example.

• Die Stützeinrichtung 64 beinhaltet eine biegeelastische, vorzugsweise aus Kunststoff bestehende Lamellen-Führungsleiste 96, von welcher ein Ende 98 im Bereich des oberen Endes 54 der Lamellen-Führungsschiene 2 befestigt ist und das andere Ende 100 mit der Lagerplatte 8 in Verbindung steht, wobei die Lamellen-Führungsleiste 96 zwischen ihren beiden Enden 98, 100 abhängig von der jeweiligen Neigung α der Wickelwelle 6 derart biegbar ist, daß ein allmählicher, vorzugsweise kreisbogenförmiger Übergang von der Führungsschiene 2 in eine Ebene parallel zur Lagerplatte 8 geschaffen wird.
• Die Lamellen-Führungsleiste 2 ist in einer zur Schwenkachse 56 der Gelenkverbindung 52 senkrechten Ebene gebogen, wobei ihre radial äußere Fläche 10 eine Führungskante 104 für die Lamellen 22 bildet.
• Die Lamellen 22 sind vorzugsweise an ihrer der Führungsschiene 2 am nächsten gelegenen Ecke mit einer lotrecht zur Lamellenebene verlaufenden, die Führungskante 104 der Lamellen-Führungsleiste 96 umgreifenden Lamellennase 30 versehen, durch welche die Lamellen 22 an der Lamellen-Führungsleiste 96 formschlüssig gehalten sind.
• Die Stützeinrichtung 64 umfaßt im weiteren einen Lagerbock 94, an welchem das andere Ende 100 der biegeelastischen Lamellen-Führungsleiste 96 parallel zur Lagerplatte 8 befestigt ist und welcher entlang einer an der Lagerplatte 8 befestigten, vorzugsweise linearen Führung 106 festlegbar geführt ist.
• Die Stützeinrichtung 64 umfasst außerdem einen sich in Wickelrichtung an die Lamellen-Führungsleiste 96 anschließenden, biegeelastischen Lamellen-Führungskanal 92, welcher von der Wickelwelle 6 radial beabstandet ist und aufgrund des Gewichts und der Bewegung des Rolladenpanzers 16 in einer parallel zur Lagerplatte 8 gelegenen Ebene in Richtung auf die Wickelwelle 6 zu derart biegbar ist, daß die aufgrund seiner elastischen Verformung bedingten Rückstellkräfte den Rollladenpanzer 16 unter Spannung halten.
• Der Lamellen-Führungskanal 92 ist zwischen zwei parallel zueinander verlaufenden, in den Lagerbock 94 fest eingespannten Führungsleisten 110 gebildet, deren freie Enden 122 durch einen Bügel 124 miteinander verbunden sind und wobei eine Längskante 114 einer der Führungsleisten 116 die Führungskante für die Lamellennasen 30 bildet.

In addition, the roller shutter according to the invention has the following features:

• The support means 64 includes a flexurally elastic, preferably made of plastic slat guide rail 96, of which one end 98 is fixed in the region of the upper end 54 of the slat guide rail 2 and the other end 100 is in communication with the bearing plate 8, wherein the slats Guide rail 96 between its two ends 98, 100 depending on the respective inclination α of the winding shaft 6 is bendable such that a gradual, preferably circular arc-shaped transition of the guide rail 2 is provided in a plane parallel to the bearing plate 8.
• The lamella guide strip 2 is bent in a plane perpendicular to the pivot axis 56 of the hinge connection 52, wherein its radially outer surface 10 forms a leading edge 104 for the lamellae 22.
• The lamellae 22 are preferably provided on their guide rail 2 at the nearest corner with a perpendicular to the lamellar plane, the leading edge 104 of the lamellae guide rail 96 embracing lamellar lug 30 through which the lamellae 22 are held positively on the lamellae guide rail 96.
• The support means 64 further comprises a bearing block 94 to which the other end 100 of the flexible-elastic blade guide rail 96 is mounted parallel to the bearing plate 8 and which is guided along a fixed to the bearing plate 8, preferably linear guide 106 fixed.
• The support means 64 also includes a subsequent in the winding direction of the lamellae guide bar 96, bending elastic lamella guide channel 92 which is radially spaced from the winding shaft 6 and due to the weight and movement of the roller shutter 16 in a plane parallel to the bearing plate 8 level Direction of the winding shaft 6 is so bendable that due to its elastic deformation restoring forces hold the roller shutter 16 under tension.
• The lamellar guide channel 92 is formed between two mutually parallel, in the bearing block 94 firmly clamped guide rails 110 whose free ends 122 are connected by a bracket 124 and wherein a longitudinal edge 114 of the guide rails 116, the leading edge for the lamellae 30 forms.

The lamellar lugs 30 are depending on the inclination α of the winding shaft 6 either in one of several, in a roller shutter shell 16 containing level equidistantly arranged one behind the other, extending in the longitudinal direction of the slat guide rail 2 and the groove edge leading edge 50 forming guide grooves 48, 70, 146th in Führungsnutlängsrichtung feasible, in such a way that with increasing inclination angles α, the lamellar lugs 30 are guided in a further away from the roller shutter 16 from the guide groove 48.

A pin 98 formed at one end of the flexurally elastic lamella guide strip 96 can be inserted into a guide groove 70 closest to the lamella guiding guide 48 and the spacing of the guide grooves 48, 70, 146 from one another is so great that the guide edges 50 of the guide grooves 48, 70, 146 regardless of the insertion position of the pin 98 with the leading edge 104 of the blade guide rail 96 are aligned.

The lower end 136 of the roller shutter 16 communicates with an additional weight, which is preferably guided longitudinally displaceably in a guide channel 36 formed within the guide rail 2.

The support means 64 may moreover comprise a slat track provided with a gradual transition from the guide rail into a plane parallel to the bearing plate, preferably arcuate cam 76, with a first guideway section 66 carried by the guide rail 2 and a roller shutter in the winding direction 16 adjoining thereto, carried by the bearing plate 8 and at least end parallel to this second guide track portion 92, wherein the first guide track portion 66 relative to the guide rail 2 and / or the second guide portion 92 relative to the bearing plate 8 is adjustable so that an outlet 84 of the first Guideway section 76 is aligned with an inlet 112 of the second guide track section 92.

The outlet 84 of the first guide track section 66 adjoins an obliquely separating plane 82 between the guide rail 2 and the bearing plate 8 corresponding to the inclination α of the winding shaft 6 and the position of at least the inlet 112 of the second guide track section 92 is adjustable in a direction parallel to the separating plane 82.

The first guide track section includes a preferably consisting of plastic, in a direction perpendicular to the pivot axis 56 of the hinge connection 52 extending plane and recorded within the guide rail 2 cam 66, with the curve 76 perpendicular to a corresponding to the

Inclination α of the winding shaft 6 bevelled upper end 80 of the cam 76 opens.

The second guide track section comprises a lamellar guide channel 92 arranged parallel to the bearing plate 8 and preferably guided in a direction perpendicular to the bearing plate, the lamella guide channel 92 being formed between two guide rails 110 running parallel to one another and fixedly mounted in the bearing block 94. whose free ends 122 are connected to each other by a bracket 124.

1. a) Herstellen einer Standard-Kurvenscheibe 86, an deren oberem Ende 80 eine Kurve 76 ausgebildet ist, die einen einer maximal möglichen Neigung α der Lagerplatte 8 entsprechenden Bogenwinkel aufweist;
2. b) Abtrennen eines gemäß einer gewählten Neigung α der Lagerplatte 8 nicht-benötigten Bogens der Kurve 76 vom oberen Ende 80 der Standard-Kurvenscheibe 86.

The cam is produced by the following method:

1. a) producing a standard cam 86, at its upper end 80, a curve 76 is formed, which has a maximum possible inclination α of the bearing plate 8 corresponding arc angle;
2. b) separating a not required according to a selected inclination α of the bearing plate 8 arc of the curve 76 from the upper end 80 of the standard cam 86th

The sliding body 30 are depending on the inclination angle α of the winding shaft 6 either in one of several, in a roller shutter 16 containing plane preferably equidistantly arranged one behind the other, extending in the longitudinal direction of the slat guide rail 2 and the groove edge leading edge 50 forming guide grooves 48, 70, 146th feasible, in such a way that with increasing inclination angles α, the sliding bodies 30 are guided in a further outwardly from the roller shutter 16 from the guide groove 48.

Claims (10)

1. A roller shutter (1) for shapes of wall openings deviating from the rectangular, in particular for trapezoidal wall openings, having a barrel (6) which is arranged in parallel to an oblique upper edge of the wall opening and onto which a roller shutter curtain (16) is windable consisting of slats (14) arranged in series in an oblique position and which is rotatably supported on at least one support bracket (8), which is held by means of a pivoting connection (52) at the top end (54) of the longer slat guide rail (2) adjustable in the inclination angle with respect to the latter about an essentially horizontal pivoting axis (56) arranged vertical to the barrel (6), and having a supporting means (64) provided in the area of the top end (54) of the slat guide rail (2) for supporting at least some of the slats (22) for at least a portion of their travel between leaving the slat guide rail (2) and being received on the barrel (6) against a component of the gravitational force of these slats (22) exerted in the longitudinal direction of the slats, characterized in that the supporting means (64) has a slat guide way provided with a curve (76), preferably in a circular arc, creating a smooth transition from the slat guide rail (2) to a plane essentially parallel to the support bracket (8), with a rigidly formed cam disc (66) for feeding the slats (18, 22) exiting from the guide rail (2) to the barrel (6), wherein, for mounting the roller shutter (1), the cam disc (6) is formed as a standardized part adjusted to the maximum inclination angle, from which the portion not needed for the current inclination angle (α) can be cut off and discarded.
2. The roller shutter according to claim 1, characterized in that the slat guide way has a first guide way section formed by the rigid cam disc (66) and carried by the slat guide rail (2), and a second guide way section (92) contiguous to the former in the winding direction of the roller shutter curtain (16), carried by the support bracket (8) and extending in parallel to the latter at least over an end portion, wherein the cam disc (66) is adjustable relative to the guide rail (2) and/or the second guide way section (92) is adjustable relative to the support bracket (8) in such a way that an exit (84) from the cam disc (66) is in alignment with an entry (112) to the second guide way section (92), wherein the second guide way section has a resiliently formed guide channel (92) held in a support block (94) adjustable along the barrel (6), wherein its adjustability ensures aligned adjustment of the guide channel (92) with respect to the exit (84) from the cam disc (66).
3. The roller shutter according to claim 2, characterized in that the support block (94) is adjustable via a threaded rod (108) extending parallel to the barrel (6).
4. The roller shutter according to any one of claims 1 to 3, characterized in that a baffle plate (118) is provided adjacent to the guide channel (92), which supports flush alignment of the ends of the slats (18, 22) in a plane vertical to the barrel (6) during the winding and unwinding process.
5. A roller shutter (1) for shapes of wall openings deviating from the rectangular, in particular for trapezoidal wall openings, having a barrel (6) which is arranged in parallel to an oblique upper edge of the wall opening and onto which a roller shutter curtain (16) is windable consisting of slats (14) arranged in series in an oblique position and which is rotatably supported on at least one support bracket (8), which is held by means of a pivoting connection (52) at the top end (54) of the longer slat guide rail (2) adjustable in the inclination angle with respect to the latter about an essentially horizontal pivoting axis (56) arranged vertical to the barrel (6), and having a supporting means (64) provided in the area of the top end (54) of the slat guide rail (2) for supporting at least some of the slats (22) for at least a portion of their travel between leaving the slat guide rail (2) and being received on the barrel (6) against a component of the gravitational force of these slats (22) exerted in the longitudinal direction of the slats, characterized in that the supporting means (64) has a resilient slat guide channel (96), preferably of plastic material, having an end (98) attached in the area of the top end (54) of the slat guide rail (2) and another end (100) connected to the support bracket (8), wherein the slat guide channel (96) is bendable between its two ends (98, 100) as a function of each inclination (α) of the barrel (6) in such a way that a gradual, preferably circular arcuate transition is created from the slat guide rail (2) to a plane parallel to the support bracket (8).
6. The roller shutter according to claim 5, characterized in that the slat guide channel (96) is curved in a plane vertical to the pivot axis (56), wherein the radially outer surface (102) of the slat guide channel (96) forms a guide edge (104) for slat studs (30), extending vertical to the slat plane, of the slats (22).
7. The roller shutter according to claim 6, characterized in that the support means (64) further comprises a support block (94), on which the other end (100) of the resilient slat guide channel (96) is attached parallel to the support bracket (8) and which is adjustable via a threaded rod (108) extending parallel to the barrel (6) and attached on the support bracket (8).
8. The roller shutter according to claim 7, characterized in that the support means (64) also comprises a resilient slat guide channel (92) carried by the support block (94) and further extending from the slat guide channel (96) in the winding direction, and radially spaced from the barrel (6) and bendable in a plane parallel to the support bracket (8) in a direction toward the barrel (6) due to the weight and the movement of the roller shutter curtain (16) in such a way that the restoring forces resulting from its resilient deformation keep the roller shutter curtain (16) under tension.
9. The roller shutter according to claim 8, characterized in that the sliding studs (30) are guidable in the guide groove longitudinal direction, depending on the inclination (α) of the barrel (6), optionally in one of a plurality of guide grooves (48, 70, 146) equidistantly arranged one behind the other in a plane with the roller shutter curtain (16), extending in the longitudinal direction of the slat guide rail (2) and forming guide edges (50) at the groove edge, in such a way that, as the inclination angle (α) is increased, the slat studs (30) are guided in a guiding groove (48) situated further to the outside as seen from the roller shutter curtain (16).
10. The roller shutter according to claim 9, characterized in that a plug (98) formed on one end of the resilient slat guide channel (96) is insertable into the next guide groove (70) arranged toward the inside with respect to the slat-guiding guide groove (48), and in that the spacing of the guide grooves (48, 70, 146) with respect to each other is dimensioned such that the guide edges (50) of the guide grooves (48, 70, 146) are in alignment with the guide edge (104) of the slat guide channel (96) irrespective of the insertion position of the plug (98).

Images