EP2216477B1 - Winding shaft connector of a roller shutter - Google Patents

Description

The invention relates to a building opening shading device according to the preamble of claim 1.

Such a building opening shading device, in particular a roller shutter, has a rotatably mounted winding shaft for mounting and discharging a curtain mounted on the winding shaft in front of the building opening, which represents the main function of the building opening shading device. Further, the building opening shading device comprises a power train for performing an auxiliary function of the building opening shading device, for example, in a roller shutter with displayable guide rails a drive train for exhibiting the pivoting portion of the guide rails or a building opening shading device with louvers slats a powertrain for up or Zujalousieren the lamellae.

A generic roller shutter with additional function is for example the DE 39 00 745 A1 refer to. There, a roller shutter is shown, which has ausstellbare guide rails. The guide rails are accommodated with their upper end in a helical guide of a cam, which can be coupled via a coupling with the drive of the winding shaft. In this case, on the one hand the roller shutter armor can be on the one hand on the drive of the winding shaft and lowered and on the other hand, the Ausstellmechanismus (additional function) can be actuated. The cam is connected via a gear to an inner shaft, which is connected via the coupling with the winding shaft. The clutch has a number between the inner shaft and the winding shaft surrounding the inner shaft sleeves which have on their front sides on the one hand driver projections and on the other hand recesses for the Mitnehmervorsprünge. The recesses are wider in the circumferential direction than the projections, so that the winding shaft can initially rotate freely without taking the drive shaft for the Ausstellermechanismus and only when the projections on the shoulders of the recesses attack the drive shaft of the exhibitor is actuated.

The number of coupling sleeves or the width of the recesses and projections in the circumferential direction must be matched exactly to the Behanglänge to allow complete draining of the curtain, without the Ausstellermechanismuss is set in motion. This means that each individual roller shutter must be configured individually depending on the building opening to be covered.

Furthermore, the German patent application DE 44 03 651 A1 to remove a roller shutter, in which as an additional function in addition to the winding and unwinding of the shutter a push-up protection is provided. If the last curtain lamella separates from the winding shaft when unwinding the curtain, the anti-lift protection is triggered and ensures that a pawl engages in a designated opening in the hanging rod. The push-up safety device has a drive train which hangs on a swivel arm connected to the winding shaft and pulls it outwards due to its own weight, as soon as the winding shaft and thus the swivel arm is no longer covered by the roller shutter curtain.

Here, the additional function is thus carried out solely by the weight of the drive train, which consists mainly of a rod. In many cases, this weight is not sufficient as drive energy for actuating the additional function.

The German patent DE 845 919 B Finally, discloses a roller shutter, in which an exhibitor is provided as an additional function, the drive train has a force acting on a pawl wire, which is attached to a rotatably received on the winding shaft ring. If the drive train is to be actuated, then a coupling pawl articulated on the winding shaft must be brought into a slot in this ring. The ring and the coupling pawl thus form a switchable coupling, which is only switchable when the curtain does not cover the winding shaft at the location of the coupling pawl.

To switch the clutch must be pulled either smoothly and uniformly on the tension belt to pull the curtain from its lowered position with not flipped shutters or, if the roller shutter is to be issued, be pulled with a push on the belt, so that the clutch pawl due its centrifugal force is moved outwards into the slot of the ring and then the roller shutter can be issued.

The shutter must therefore be controlled in a relatively complex manner, which meets with many users to little acceptance.

Proceeding from this, the object of the present invention is to design a generic building-opening shading device such that a connection of a drive train for an additional function of the building opening shading device in a structurally simple manner with high reliability and ease of use of the building opening shading device is possible.

This object is achieved with the features of claim 1.

According to the invention, the torque of the winding shaft is also used for driving the additional function, via a positive coupling of serving for carrying out the additional function of the drive train with the winding shaft.

For this purpose, the drive train serving to carry out the additional function has a drive coupling for torque-transmitting coupling to the winding shaft. The drive coupling has a coaxial with the winding shaft rotatably driven rotary drive element and a coupling element, via which the rotary drive element can be coupled to the winding shaft.

According to the invention, the drive train serving to carry out the additional function is actuated via the positive clutch only when the winding shaft is not covered by a position of the curtain at a predetermined point. Otherwise, the forced clutch is disconnected. That is, the drive train is actuated via the coupling element or released for actuation, or the coupling element actuates the drive train or releases it for actuation when the winding shaft is not covered at a predetermined location by a position of the blind. For this purpose, the coupling element is constructed so that the drive train of the additional function and the winding shaft of the building opening shading device are forcibly decoupled via the coupling element when the winding shaft is covered at the predetermined location of the position of the curtain, and otherwise forcibly coupled torque transmitting.

It is thus possible to actuate the main and auxiliary function of the building opening shading device by a single drive, namely the drive of the winding shaft. This results in a particularly simple construction of the building opening shading device, both in a hand-operated, but especially in a motor-driven winding shaft. Because the engine control has only one motor to control. For the operation of the building opening shading device, it is therefore sufficient, in principle, to give the motor control system an end position when the curtain is fully raised and an end position when the curtain is completely drained and additional function has been performed.

A separate motor drive for the drive train of the additional function, or an auxiliary function actuating device, which the motor drive in response to whether the winding shaft is covered at a predetermined peripheral portion or at a predetermined location of a position of the blind, or to the output of a detection device, which detects this is then no longer necessary.

Rather, the coupling element in the positive coupling according to the invention embodies the detection device, which detects whether the winding shaft is covered at a predetermined peripheral portion or at a predetermined location of the position of the blind, and the additional function actuator which in response to the output of the detection means the Actuated drive train or releases for actuation, if it is detected that the winding shaft is not covered at a predetermined point or at the predetermined peripheral portion of the position of the curtain. The coupling element is thus provided instead of such a detection device and instead of such an additional function actuating device.

Unlike a switchable clutch, so a clutch in which in response to the output of the detection device, the coupling element is engaged and disengaged by the additional function actuator, advantageously no such detection device and additional function actuator is necessary due to the forced coupling.

The statement that the drive train of the additional function and the winding shaft "are forcibly decoupled when the winding shaft is covered at the predetermined location by the position of the curtain, and otherwise forcibly torque-coupled coupled" includes in the context of the invention, of course, always in reality for switching from the decoupled to the coupled state necessary switching time between the two states.

The fact that used as a trigger for the additional function, the concern of the curtain on the winding shaft or a position of the curtain at a certain point is, regardless of the Behanglänge and thus without the shading device must be individually configured for each building opening, the desired additional function can be easily triggered, performed or released.

This is particularly advantageous if the position of the curtain, is detected by the, whether it covers the winding shaft at the predetermined location in the wound state rests directly on the winding shaft, so it is, for example, the top shutter roller bar of a roller shutter, with the curtain is attached to the winding shaft. This is because the fact that the drive train is only actuated or released for actuation when it is detected that the winding shaft is not covered by the position of the curtain at a predetermined point or at the predetermined peripheral portion, it is ensured that the additional function can be performed only if the curtain is completely wound up. A risk of failure due to an ensuing simultaneously with a Behangaufziehen or let off operation of the additional function can thus be effectively and easily avoided.

This can be important, for example, in a curtain with on and zujalousierbaren single slats, in which the additional function, the blinds of the individual slats of the blind, should be performed only in fully extended condition of the blind. Another example of a building opening shading device, the additional function should be performed only when fully extended drapery, would be a building opening shading device with extendable guide rails (additional function), in which the expansible pivot portion comprises only a lower leg of the guide rail and the curtain is not mounted or may be drained when the pivot portion is issued because a blocking is to be feared at the occurring on the pivot axis kink in the guide groove of the guide rail.

Advantageously, the coupling element one at the predetermined location between an adjacent and a protruding positions movably received on the winding shaft movement portion which is biased against the position of the curtain, so that the moving portion is held in the adjacent position when the position of the curtain covered the predetermined position of the winding shaft, and the protruding Occupies position when the predetermined position of the winding shaft is not covered by the position of the curtain.

The movement portion may in turn have a driver and the rotary drive element at the radial height of the located in the protruding position driver a stop for the driver, so that the driver can engage in the protruding position on the stop of the rotary drive element and not in the adjacent position.

The movement section can be designed as an axially parallel to the winding shaft circumference articulated and biased away from the winding shaft circumference away folding wing. The coupling element may further comprise a wing attachment portion, on which the movement portion is movably received, with which the coupling element is thus secured to the winding shaft. The wing attachment section can in turn comprise a collar placed around the winding shaft or a support ring completely surrounding the winding shaft and a joint support placed on the collar, on which the folding wing or the movement section is articulated with the driver.

It would also be conceivable to have a coupling in which the movement section is fastened to the rotary drive element instead of to the winding shaft. In this case, the movement section could have a radially biased inwardly driver, which extends in the axial direction to the winding shaft and grinds at unwound hang on the outer layer of the curtain. At the given, to be scanned peripheral portion of the winding shaft, the winding shaft then have a stop for the driver, which is covered by not fully unwound Behang of the curtain. If the last position of the curtain is handled at the predetermined peripheral portion, the driver engages the stop, for example in a trough on the winding shaft circumference.

However, the movement section could also be attached neither to the rotary drive element nor to the winding shaft, but e.g. at a koxial between the rotary drive element and the winding shaft taken disc, which may have, for example, a folding wing, on the one hand locked to the winding shaft as soon as the last position of the curtain is unwound from a corresponding latching portion at the predetermined location of the winding shaft, on the other hand with the rotary drive element.

The rotary drive element may comprise a torque-transmitting coupled to the winding shaft, rotatably mounted coaxially to a rotational axis of the winding shaft on a side part of a roller shutter box disc. The driver on the moving portion of the winding shaft can then engage in engagement with the disk, e.g. at a driving cam projecting inwardly from an inner periphery of the disc.

If the rotary drive element comprises a pressure chain guided at least in an arc section coaxially to a rotational axis of the winding shaft and the pressure chain is connected to a disk, the driver can engage the disk or directly on the pressure chain. For direct attack on the pressure chain, the guide facing the driver of the pressure chain in the peripheral region in which the driver migrates in the radial direction may be open, and at the end of the print chain a correspondingly shaped stop for the driver may be provided.

Advantageously, the curtain is attached to the winding shaft, that after complete draining of the curtain further rotation of the winding shaft in Ablassrichtung by a necessary for engaging and operating the drive train of the additional function angle is possible.

To provide, for example, in a roller shutter with an existing hanging from each other roller shutter slats the necessary for engaging and operating the drive train of the additional function "freewheel" of the winding shaft, so to allow further rotation in Behangablassrichtung when the shuttering armor is completely drained and seated with its end bar down , the roller shutter could be attached to the winding shaft, for example, about after pulling up zugens expectant tension cables. However, this is too shaky in many cases. The curtain could also be attached via a winding shaft side hinged Behangabschwenkflügel on the winding shaft, which pivots when the curtain rests at its lower end, so that the winding shaft can rotate in the fully drained drape further in unwinding. With these measures, however, the winding shaft can only continue to rotate by a relatively small angle segment after the curtain is seated, so that the additional function must be triggered and carried out within a very small winding shaft rotation angle.

Therefore, a curtain fastening device is particularly advantageously provided, which has a stop section fixedly mounted on the circumference of the winding shaft and behangseitig associated with the curtain Behangaufnahmeabschnitt. Here, the Behangaufnahmeabschnitt is rotatably received on the winding shaft, the stopper portion has a projecting in the radial direction of the winding shaft stop and the Behangaufnahmeabschnitt on the axial height of the stopper a driver. Stop and dog are designed so that the driver can stop the stop when rotating in the lift direction of the blind winding shaft and can release the stop in the direction of discharge of the blind rotating winding shaft.

When draining the curtain this reaches a fully extended position in which the curtain rests with its end bar, for example, on a window sill and thus further rotation of the winding shaft in a conventional at the Winding shaft attached roller shutter would prevent. However, if the curtain is connected to the winding shaft via the proposed hanging fastening device, the winding shaft-side stopper is released from the other side carrier if the winding shaft is still actuated in the hanging direction so that further rotation of the winding shaft and thus engagement of the drive train with the additional function are possible is.

For the further rotation, an angle segment of almost 360 ° is available. If more is needed, then the hanging fastening device can also be constructed in several stages. Thus, the stop for the driver on a rotatably received on the winding shaft ring member may be formed, which in turn has another driver for another, fixedly mounted on the circumference of the winding shaft, projecting in the radial direction of the winding shaft stop, wherein the further driver relative to the other stop is provided on the side lying in the lift direction of the blind side of the winding shaft, so that then almost 720 ° rotation angle would be available.

The stopper portion may comprise two sleeves or rings spaced around the winding shaft in the axial direction of the winding shaft, and the hanging receiving portion may comprise a curtain receiving carriage rotatably disposed between the sleeves. The Behangaufnahmitten can be advantageously taken with runners sections in guides in the sleeves movable, which extend in winding shaft circumferential direction.

Figur 1:

Eine perspektivische Gesamtansicht eines Rollladens mit ausstellbaren Führungsschienen;

Figur 2:

Einzelheit II in Figur 1;

Figur 3:

eine Ansicht eines Antriebsstrangs für die Ausstellerfunktion des in Figur 1 dargestellten Rollladens;

Figur 4:

eine Ansicht eines Antriebsstrangs gemäß einer alternativen Ausführungsform für den in Figur 1 dargestellten Rollladen;

Figur 5:

eine Detailansicht der Einzelheit V in Figur 4;

Figur 6:

eine der Figur 5 entsprechende Ansicht bei nicht ausgestellter, verriegelter Stellung der Ausstelleranordnung;

Figur 7:

eine Detailansicht des in Figur 3 dargestellten Antriebsstrangs bei verriegelter, nicht ausgestellter Stellung der Ausstelleranordnung;

Figur 8:

eine der Figur 7 entsprechende Detailansicht bei entriegelter, aber noch nicht ausgestellter Stellung der Antriebsanordnung;

Figur 9:

eine Detailansicht der Antriebskupplung des in Figur 3 dargestellten Antriebsstrangs in ausgekuppeltem Zustand (die in Fig. 3 mit IX bezeichnete Einzelheit);

Figur 10:

eine der Figur 9 entsprechende Ansicht der Antriebskupplung während des Schaltvorgangs der Kupplung;

Figur 11:

eine den Figuren 9 und 10 entsprechende Ansicht bei eingekuppelter Antriebskupplung;

Figur 12:

eine schematische Seitenansicht auf ein auf der Wickelwelle aufgenommenes Kupplungselement der Antriebskupplung in von einer Behanglage bedeckten Stellung;

Figur 13:

eine der Figur 12 entsprechende Ansicht, wobei sich das Kupplungselement jedoch in einer nicht mehr von einer Behanglage bedeckten Stellung befindet;

Figur 14:

eine perspektivische Ansicht der in den Figuren 9 bis 13 dargestellten Wickelwelle mit einer Behangbefestigungsvorrichtung, welche sich in einer Stellung befindet, in der der Behang bei einer Drehbewegung der Wickelwelle mitgenommen wird; und

Figur 15:

eine der Figur 14 entsprechende Ansicht, wobei sich die Behangbefestigungsvorrichtung in einer Stellung befindet, in der die Wickelwelle frei drehen kann, ohne den Behang mitzunehmen.

Hereinafter, preferred embodiments of the invention will be explained in more detail with reference to schematic drawings. Show it:

FIG. 1:

An overall perspective view of a roller shutter with ausstellbaren guide rails;

FIG. 2:

Detail II in FIG. 1 ;

FIG. 3:

a view of a powertrain for the exhibitor function of the in FIG. 1 shown shutter;

FIG. 4:

a view of a drive train according to an alternative embodiment of the in FIG. 1 Shutters shown;

FIG. 5:

a detailed view of the detail V in FIG. 4 ;

FIG. 6:

one of the FIG. 5 corresponding view at not issued, locked position of the exhibitor arrangement;

FIG. 7:

a detailed view of the in FIG. 3 shown drive train with locked, not issued position of the exhibitor arrangement;

FIG. 8:

one of the FIG. 7 corresponding detail view with unlocked, but not yet issued position of the drive assembly;

FIG. 9:

a detailed view of the drive coupling of in FIG. 3 shown drive train in disengaged state (the in Fig. 3 with IX designated detail);

FIG. 10:

one of the FIG. 9 appropriate view of the drive clutch during the switching operation of the clutch;

FIG. 11:

a the FIGS. 9 and 10 corresponding view with coupled drive coupling;

FIG. 12:

a schematic side view of a recorded on the winding shaft coupling element of the drive clutch in a Behanglage covered position;

FIG. 13:

one of the FIG. 12 corresponding view, but with the coupling element is in a no longer covered by a Behanglage position;

FIG. 14:

a perspective view of the in the FIGS. 9 to 13 the winding shaft shown with a curtain mounting device, which is in a position in which the curtain is entrained in a rotational movement of the winding shaft; and

FIG. 15:

one of the FIG. 14 corresponding view, the hang-fastening device is in a position in which the winding shaft can rotate freely without taking the curtain.

First, reference is made to the FIG. 1 , It shows a roller shutter designated as a whole with 1, which has a winding shaft 2 received in a shutter box 7 with side parts 8 (FIG. FIG. 3 ), on which a roller shutter 3 ( Fig. 14 ) is recorded on and unwound. To guide the roller shutter shell 3, the roller shutter 1 side guide rails 4a, 4b, which have two connected via a lower cross member to a pivot portion 4, swing-leg. The guide rails are connected at their non-swinging legs in each case with one of the shutter box 7 to the lower edge of the swinging leg of the respective guide rail 4a, 4b extending frame member 11, for example, put together. In the context of the invention, the non-swinging legs of the guide rails could also be formed integrally with the frame member. The swinging guide legs are hinged to the stationary, upper sections of the guide rails 4a, 4b each via an insertable into the profiles of the guide rail halves pivot joint. Such an exhibitor joint is the subject of its own utility model DE 20 2008 013 422 , which should be included here.

In the non-pivoted-down state of the pivoting section, there is thus a smooth outer surface of the guide rails, because also the exhibitor arm or the exhibitor arm arrangement arranged there for exhibiting the pivoting section behind the deflectable guide legs of the guide rails 4a, 4b is located in an outlet opening or arm receptacle facing the pivoting section Frame member is received, so that the swing-leg of the guide rails 4a, 4b, in the uninhibited state congruent to the two frame members or frame profiles 11 come to rest.

How the particular FIG. 2 it can be seen, the exhibitor arm denoted by 12 is received at its upper end in the frame member 11 and engages with its lower end to the swing-leg of the respective guide rail 4a, 4b, so a total of the pivot portion 4 of the exhibitor roller shutter 1. In a central region of the exhibitor arm 12, a scissor arm 13 is articulated with its upper end on a joint 13a, which protrudes with its lower end as well as the issuing arm 12 with its upper end through the opening 11a designated in the frame member 11 and received there is. The scissors arm 13 is articulated at its recorded in the frame member 11 mounting portion 16, which is slidably received in the frame member 11, in particular in conjunction with the Figures 2 . 7, and 8 can be seen. By contrast, the issuer arm 12 is connected to a fastening section 14, which is likewise located in the frame component 11 (see FIG. FIG. 3 ), which is fixed in the frame member characterized in that above the serving as a mounting portion support 14 for a joint 14 a of the 12 exhibitor arm 12 a stop in the frame member 11 is provided against the exhibitor arm - mounting portion 14 - during pivoting of the pivoting section. 4 is pressed over the scissor arm 13, as will be explained below.

The frame member 11 thus has behind the passage opening 11a for the arm 12 and the scissor arm 13 preferably designed as a sliding guide receptacle for the mounting portions 14, 16. This receptacle is connected to the roller shutter box via a passage opening extending up to the upper end side of the frame component, or can be connected by means of which pressure or traction means to be described below can be passed, via which a force necessary for issuing the exhibitor arm can be transmitted.

The above-described, consisting of the frame member 11 and the non-swiveling portion of the guide rail 4a and 4b profile unit can be made for the subject of a separate application, with the other features mentioned above, in particular the recorded in the guide rail profile swivel joint and the thus hinged to the frame member guide rail unit pivot leg of the guide rail, as well as extending from the upper end of the frame member to the receiving opening for the issuer arm assembly passageway for the tension or pressure means, as well as the design of the receiving opening as sliding can be involved.

Like from the Figures 2 . 7 and 8 It is apparent in the receiving guide in the profile member 11 below the mounting portion 16 of the scissor arm 13, via which it is slidably displaceable in the Gleitführungsaufnahme, a locking block 18 and a locking unit 18 or a bolt stopper portion 18 which carries a designated 19 latch hooks, with which the pivot portion 4 can be locked in the voltage applied to the frame member 11 state. For this purpose, the pivot portion 4 at a corresponding to the latch hook portion 19 of the swing-leg of the guide rails 4a, 4b each have an undercut latch receiving opening, which the latch hook 19 in the locked, lower position ( FIG. 7 ) engages behind.

The bolt stopper portion 18 is also formed as a slidably received in the Gleitführungsaufnahme in the frame member 11 block which has a stop edge 21 on the upper side, with which it runs against a lower-side stop edge of the slidably designed scissor arm mounting portion 16, if on the traction cable 10 formed as traction means is pulled in the locked position of the latch hook 19 and the latch portion 18 is thereby raised to the unlocked position ( FIG. 8 ). Upon further train on the pull cable 10 of the Riegelanschlagsabsachnitt 18 presses with its stop 21 against the lower-side stop of the scissor arm mounting portion 16 and raises this by.

A drive train, with the exhibitor arm 12 is issued against the pivot section 4, is a total of FIG. 3 can be seen, wherein the locking unit 18 and the locking of the pivoting portion are provided on the frame members 11 only as an optional development. Conversely, however, could also represent the lock itself, the additional function which is performed on the drive train when the deployment mechanism is operated by other drive means.

Of the FIG. 3 it can be seen that the pull cable 10 is guided over a guide roller 20 on the bolt stop portion 18 and is connected at its end on Befestigunsabschnitt 16 of the scissors arm 13. However, the traction cable could also be connected directly to the bolt stop section, in which case no deflection roller would be necessary. Would pulled on the attached to the bolt stop portion pull rope, this would run after overcoming the necessary for unlocking path against the scissor arm attachment portion and push it as well as in the illustrated embodiment of the invention upwards, wherein bolt stop portion and scissor-arm attachment portion in the Sliding guide recording in the frame member are guided.

The existing from the scissor arm 13 and the articulated thereto 12 exhibitor arm based on the exhibitor arm mounting portion 14 on the upper side against a corresponding stop in the frame member 11 from which is not explicitly shown in the figures. A train on the traction cable 10 thus leads after the start of the bolt stopper portion 18 against the scissor arm mounting portion 16 to spreading the scissors formed from the scissor arm 13 and the arm 12, the exhibitor arm 12 formed on its rotatably received as a rubber roller 15 engaging portion on the underside engages the pivot legs of the guide rails 4a, 4b and thus on the pivot portion 4 of the shutter 1.

The traction cable 10 is at its other end on a circumference of a designated 5, on the side part 8 ( FIG. 1 ) of the roller shutter box 7 rotatably mounted sheave and can be wound up and unwound via a rotation of the sheave. As a drive for the pulley 5 while the designated winding shaft 2 of the shutter 1 is provided. The pulley 5 is formed as penetrated by the winding shaft 2 hollow disc and thus forms a coaxial with the winding shaft 2 arranged rotary drive element and is connected via a coupling element 9 (Fig. FIGS. 9-11 ) torque transmitting with the winding shaft 2 detachable and decoupled from this.

The coupling element 9 is thereby, as will be explained in detail later, from a decoupled position in which it is located when the winding shaft 2 is covered at a predetermined location 25 or at a predefined peripheral portion of a layer 30 of the curtain 3 moved in a coupling position when the layer 30 of the curtain 3, the predetermined point 25 of the winding shaft 2 is no longer covered ( Fig. 12, 13 ). About the coupling element 9 is thus finally detected whether the winding shaft 2 is covered at the predetermined location 25 of a layer 30 of the blind 3 and the Additional function of the shutter (here the Ausstellermechanismus) operated in response to whether it is detected that the winding shaft is covered at the predetermined location of the position of the curtain or not. The coupling element 9 thus forms a detection device and an additional function actuating device for actuating the drive train of the additional function, wherein the drive train according to the in FIG. 3 shown embodiment of the coupling element 9 via the pulley 5 and the cable 10 to the bolt stopper portion 18 and from there via the scissor-arm attachment portion 16 and the scissor arm 13 and the exhibitor arm-mounting portion 14 to the issuer 12 leads.

An alternative embodiment of the drive train of the additional function of the shutter, here the pivoting of the exhibitor arm 12 (and the optional lock) is the FIG. 4 refer to. In this case, instead of a traction means, a pressure (and tension) transmitting push rod 110 is provided, which is fastened with its lower end to the movably received in the Gleitführungsaufnahme in the corresponding frame member mounting portion 114 to which the arm 12 is articulated via an articulation joint 114a. The push rod 110 is connected at its upper end with a pressure chain 105, which is guided via inlet guides 117 c in the interior of the roller shutter box 7, which instead of the side parts 8 side parts 108, which next Umlenkführungsrippen 117 b, where the print chain on a rotatable on the Side part 108 received disc 105a is deflected, a circular arc concentrically around the disc 105 a circumferential guide rib 117 a has. Between the circular arc-shaped guide rib 117a and the chain plate 105a is just as much space that the print chain 105a fits into it. A pressure chain according to the invention is a chain which can transmit a compressive force. The print chain 105 is attached in a manner not shown on the sprocket 105a. Also not shown is on the inner circumference of the support of the print chain 105 projecting driving cam on the disc 105a.

If the disk 105a is actuated in the printing direction of the print chain 105, a pressure force is transmitted to the push rod 110 and from there to the mounting portion 114 via the pressure chain 105. On the underside of the scissor mechanism 13 formed by the exhibitor arm 12 and the joint 13a articulated thereto via the joint 13a, the scissor arm 13 is articulated on its scissor arm attachment section 116, which are except for one for actuating the lock, essentially supports a small path ( FIG. 5, FIG. 6 ), so that the Ausstellermechanismus spreads and the pivoting portion 4 is pivoted away from the frame member.

The details of the locking unit 118, 119a, 119, 120 used here are the FIGS. 5 and 6 refer to.

FIG. 5 shows an unlocked position of the locking unit 118, 119a, 119, 120 swung exhibitor, as they also FIG. 4 can be seen. FIG. 6 On the other hand, it shows a locked position of the locking mechanism when the pivoting section or exhibitor is seated. The locking unit 118, 119a, 119, 120 in this case has a locking block 118, in which the locking hook 119 is pivotally received via a hinge 120. On the side opposite the latch hook 119 side of the joint 120 is thereby a Kipphebelabschnitt 119a of the latch hook 119. Will, as in FIG. 4 shown, exerted by the push rod 110, a pressure on the scissor mechanism 12, 13, this pressure is transmitted via the scissor arm 13 on the scissor arm attachment portion 116, on which the scissor arm 13 is articulated via a hinge 116 a. The scissor arm mounting portion 116 is slidably guided in the locking block 118 and the bolt stop portion 118 and then presses on the Kipphebelabschnitt 119 a of the latch hook 119. The latch stop portion 118 is supported on the underside of a corresponding stop in the frame member, so that when pressure is applied via the Push rod 110 while first necessary for unlocking the latch hook 119 path from the mounting portion 116 of the scissor arm 113th is set back, but this abuts a stop 121 on the latch portion 118 after a short time and is held there above the pressure exerted by the push rod 110, which is countered by the stop of the frame member on which the latch stop portion 118 is seated.

In the FIGS. 9-13 is the drive coupling 5, 9 of in Fig. 3 illustrated drive train with traction cable explained in more detail.

It is a positive clutch, which is constructed so that the drive train of the additional function, ie the drive train of Ausstellermechanismus and the optional locking and the winding shaft 2 of the shutter 1 via the designated coupling element 9 are forcibly decoupled when the winding shaft 2 at a predetermined location is not covered by a last armor bar 30 of a roller shutter 3 (ie, a position of the curtain) and is forcibly engaged when the last armor bar 30 lifts from the winding shaft 2. By thus detecting that the last lamella 30 lifts off from the winding shaft 2, it is actually detected that the curtain 3 is completely unwound from the winding shaft 2, ie that an additional function of the roller shutter can be performed, which would lead to complications if they would be performed as long as the unwinding or winding of the curtain 3 is still in progress. At the in FIG. 1 This would be the case in overall view of the roller shutter 1, since the curtain on the pivot joints of the pivoting section 4 would have to follow a bend in the guide groove of the guide rails 4a, 4b, if it were in operation during pivoting out of the exhibitor 4.

In the present embodiment, the coupling element 9 has a generally designated 22 Abklappflügel, which is attached via a hinge 27 to a joint carrier 28, which in turn is pushed onto a laid over the winding shaft 2 sleeve 29 and thus the coupling element 9 stationary on the winding shaft 2 determines. The cuff 29 is a complete ring formed and covered by a wing attachment portion 23. The Abklappflügel 9 in this case has a contact extension 25, which is at the point, is detected by whether it is covered by the layer 30 of the blind 3, on the winding shaft 2 when the last blade 30 against the contact extension 25 and thus against the winding shaft 2 presses. If the last lamella, or the last roller shutter armor 30 is unwound from the winding shaft 2 ( FIG. 13 ), so the contact extension 25 is splayed out by a torsion spring, not shown in the joint 27 together with the entire folding wing 22 to the outside of the winding shaft 2. In this case, on the folding wing 22 a projecting in the axial direction of the winding shaft 2 driving pin 26 is attached, which, as FIG. 9 shows, in co-rotating with the winding shaft 2 position of the folding wing 22 on an inner path with the winding shaft 2 and rotated in folded-down position of the folding blade 22 of the folding blade 22 on an outer track with the winding shaft 2, as the FIGS. 10 and 11 can be seen.

The driving pin 36 extends in the axial direction of the winding shaft into a region below an inner peripheral shoulder on a cylindrical portion 24a of the sheave 5, wherein on the inner circumference of the cylindrical portion 24a an inwardly projecting driving cam 24 is provided.

If the curtain 3 is thus in a state not completely unwound from the winding shaft or if the last roller shutter bar 30 does not press against the contact extension 25 of the folding leaf 22, the driving pin 26 is located on the in FIG. 9 illustrated inner orbit. As soon as the folding wing 22 folds down, because the last shutter bar 30 is unwound from the winding shaft 2, the driving pin 26 comes to the outer orbit ( Fig. 10 ) and abuts against the drive cam 24 ( Fig. 11 ) and takes in a further movement of the winding shaft 2 in Wickelwellenablassrichtung the pulley 5, whereby the cable 10 is wound onto the pulley 5 and the in FIG. 3 exhibited exhibitor mechanism is set in motion.

In particular with a roller shutter armor consisting of tanks such as the roller shutter curtain 3 must be attached to the winding shaft 2, that after complete draining of the curtain further rotation of the winding shaft in Ablassrichtung is possible and that at least by such an angle that it Engage and operate the drive train of the additional function is sufficient.

In this regard is on the FIGS. 14 and 15 referenced, in which a Behangbefestigungsvorrichtung 6 is shown, with which the curtain 30 is fixed to the winding shaft 2. In this case, the hanging-fastening device 6 has winding-shaft-side two sleeves 36 which are spaced apart from one another and pushed onto the winding shaft, on each of which a stop projection 34 protrudes in the radial direction of the winding shaft 2. Between the two sleeves 35 and the stops 34 while a Behangaufnahmschlitten 31 is rotatably received, which is rotatably received with runner sections in circumferential grooves of the sleeves 34 relative to the winding shaft 2. On the Behangaufnahmitten 31 2 projecting driver or counter-attacks 35 are formed in the axial direction of the winding shaft, which, as in FIG. 14 shown in the wound on the winding shaft 2 Behang 3 or not yet completely unwound curtain 3 are in abutment with the projections 34 and, if the curtain 3 is completely unwound, out of engagement with the protruding stops 34, which in a further rotational movement of Winding shaft in Behangablassrichtung be turned away from the attacks. The curtain 3 is received with its last slat 30 in a hanging attachment eye 37, which is connected via a Behangabschwenkflügel 32, 33, 37 pivotally connected to the rotatably received Behangaufnahmigungs 31.

Of course, deviations from the variant shown are possible without departing from the spirit of the invention.

LIST OF REFERENCE NUMBERS

9, 5, 10, 14, 13, 16, 18, 19, 20; 9, 105,

110, 114, 13, 116, 118, 119a, 119, 120

powertrain

9, 5; 9, 105

drive coupling

5; 105

Rotary drive member

10; 110

Push or pull means

14, 13, 16; 114, 13, 116

Ausschwenkanordnung

31, 32, 33, 37

Behangaufnahmeabschnitt

1

shutters

2

winding shaft

3

curtain

4

pivot portion

4a, 4b

guide rails

5

sheave

6

Behangbefestigungsvorrichtung

7

A roller shutter case

8th

side panel

9

coupling member

10

cable

11

frame component

11 a

Ausstellerarmaufnahme

12

Ausstellerarm

13

Scherenarm

13a

scissor joint

14

Ausstellerarm mounting portion

14a

attachment link

15

engaging portion

16

Scissor arm attachment portion

17

Infeed idler

18

Latch stop section

19

bars

20

Transom deflection roller

21

latch stop

22

folding wings

23

Wing attachment section

24

driver cams

25

Plant extension

26

Carrier pin

27

wing joint

28

joint carrier

29

fixing cuff

30

last lamella

31

swiveling hanging sled

32

inner push-up protection

33

outer push-up protection

34

Stop (projection)

35

Carrier / counterstop

36

cuff

37

Behangbefestigungsöse

105

push chain

105a

gipsy

108

side panel

110

pushrod

114

attachment section

114a

attachment link

116

Scissor arm attachment portion

116a

Scissor arm attachment joint

117a

Drive coupling thrust chain guide

117b, 117c

Enema rigid chain guides

118

Latch stop section

119

bars

119a

Riegelkipphebel

120

bolt joint

121

latch stop

Claims (15)

1. A shading apparatus for an opening in a building, especially a roller shutter (1), comprising a rotatably mounted winding shaft (2) for winding up and lowering (main function) a hanging shutter (3) fixed to the winding shaft (2) in front of the opening in a building, and a drive train (9, 5, 10, 14, 13, 16, 18, 19, 20; 9, 105, 110, 114, 13, 116, 118, 119a, 199, 120) for performing an additional function of the shading apparatus for the opening in a building, which comprises a drive coupling (9, 5; 9, 105) with a rotary drive element (5; 105) that is rotationally drivable coaxially to the winding shaft (2) for coupling to the winding shaft (2) in a torque-transmitting manner, and comprising a coupling element (9), wherein the rotary drive element (5; 105) can be coupled with the winding shaft (2) via the coupling element (9), characterized in that the drive train (9, 5, 10, 14, 13, 16, 18, 19, 20; 9, 105, 110, 114, 13, 116, 118, 119a, 199, 120) is actuated via the coupling element (9) or is released for actuation when the winding shaft (2) is not covered by a layer (30) of the hanging shutter, wherein the coupling element (9) is configured in such a way that the drive train (9, 5, 10, 14, 13, 16, 18, 19, 20; 9, 105, 110, 114, 13, 116, 118, 119a, 199, 120) and the winding shaft (2) are forcibly decoupled via the coupling element (9) when the winding shaft (2) is covered at the predetermined location by the layer (30) of the hanging shutter (3) and are otherwise forcibly coupled in a torque-transmitting manner.
2. A shading apparatus for an opening in a building according to claim 1, characterized in that the coupling element (9) comprises a movement section (22) movably accommodated on the winding shaft (2) at the predetermined location between a close-fitting position and a protruding position, wherein the movement section (22) is pretensioned against the layer (30) of the hanging shutter (3), so that the movement section (22) is held in the close-fitting position when the layer (30) of the hanging shutter (3) covers the predetermined location of the winding shaft (2), and assumes the protruding position when the predetermined position of the winding shaft (2) is not covered by the layer (30) of the hanging shutter (3), and wherein the movement section (22) comprises a driver (26) and the rotary drive element (5; 105) comprises a stop (24) for the driver (26) at the radial height of the driver (26) situated in the protruding position, so that the driver (26) can act on the stop (24) of the rotary drive element (5; 105) in the protruding position and not in the close-fitting position.
3. A shading apparatus for an opening in a building according to claim 2, characterized in that the movement section (22) is a folding wing (22) which is spring-pretensioned away from the circumference of the winding shaft and is linked in an axially parallel manner to the circumference of the winding shaft.
4. A shading apparatus for an opening in a building according to claim 2 or 3, characterized in that the coupling element (9) comprises a wing fixing section (23), with which it is fixed to the winding shaft (2) and on which the movement section (22) is movably accommodated, especially that the folding wing (22) is linked thereto.
5. A shading apparatus for an opening in a building according to claim 4, characterized in that the wing fixing section (23) comprises a collar (29) which is placed around the winding shaft (2) and a hinged support (28) which is placed on the collar.
6. A shading apparatus for an opening in a building according to one of the claims 2 to 5, characterized in that the driver (26) is a driver pin (26) which extends axially parallel relative to the winding shaft (2) to the rotary drive element (5; 105).
7. A shading apparatus for an opening in a building according to one of the claims 1 to 6, characterized in that the rotary drive element (5) comprises a disc (5) which can be coupled in a torque-transmitting manner with the winding shaft (2) and which is rotatably mounted coaxially to a rotational axis of the winding shaft (2), especially on a side part (8) of a roller shutter box (7, 8).
8. A shading apparatus for an opening in a building according to claim 7, characterized in that the disc (5) comprises a disc-like section and a circumferential cylindrical section (24a) which protrudes from the disc-like section to the winding shaft (2), wherein the stop (26) for the driver (26) is a drive cam (24) protruding inwardly from an inner circumference of the cylindrical section (24a).
9. A shading apparatus for an opening in a building according to one of the claims 1 to 8, characterized in that the rotary drive element (105) comprises a pressure chain (105) which can be coupled in a torque-transmitting manner with the winding shaft (2) and which is guided at least in an arc section coaxially to a rotational axis of the winding shaft especially on a side part (108) of a roller shutter box (117a).
10. A shading apparatus for an opening in a building according to one of the preceding claims, characterized in that the hanging shutter which can be pulled up and dropped down in front of the opening in a building comprises a shutter section with individual shutter slats which can be louvered up and down, which is connected to the winding shaft via a fastening section which can be wound up on the winding shaft, wherein the additional function is the louvering of the individual shutter slats of the hanging shutter, and the drive train is provided for transmitting a torque from the winding shaft to the individual shutter slats.
11. A shading apparatus for an opening in a building according to one of the claims 1 to 9, characterized by a hinged guide rail arrangement for the hanging shutter (3) which can be louvered up and down in front of the opening in a building, and which can be pivoted away from the opening in a building at least with a bottom pivoting section (4) about an upper linkage axis, wherein the additional function is an actuation of the pivoting section (4) and the drive train (9, 5, 10, 14, 13, 16, 18, 19, 20; 9, 105, 110, 114, 13, 116, 118, 119a, 199, 120) is provided for transmitting a torque from the winding shaft (2) to the pivoting section (4).
12. A shading apparatus for an opening in a building according to claim 11, characterized in that the hanging shutter (3) is arranged as a roller shutter curtain (30) consisting of individual slats, wherein the uppermost slat (30) with which the shutter curtain is fixed to the winding shaft (2) is the layer (30) of the hanging shutter (3) from which it is determined whether it covers the winding shaft (2) at the predetermined location.
13. A shading apparatus for an opening in a building according to one of the preceding claims, characterized in that the hanging shutter (3) is connected to the winding shaft (2) via at least one hanging-shutter fastening apparatus (6), wherein the hanging-shutter fastening apparatus (6) is arranged in such a way that after dropping the hanging shutter (3) a further rotation of the winding shaft (2) in the dropping direction is possible about at least such an angle that the additional function can be performed.
14. A shading apparatus for an opening in a building according to claim 13, characterized in that the hanging-shutter fastening apparatus (6) comprises at least one stop section (34, 36) which is attached in a stationary manner to the circumference of the winding shaft and at least one hanging-shutter receiving section (31, 32, 33, 35, 37) which is connected to the hanging shutter on the hanging shutter side, which receiving section is rotatably accommodated on the winding shaft, wherein the stop section (34, 36) comprises at least one stop (34) protruding in the radial direction of the winding shaft, and the hanging-shutter receiving section (31, 32, 33, 35, 37) comprises at least one driver (35) at the axial height of the stop (34), which driver is provided opposite of the stop (34) on the side of the winding shaft situated in the drawing-up direction of the hanging shutter (3).
15. A shading apparatus for an opening in a building according to claim 13 or 14, characterized in that the hanging shutter (3) is arranged as a roller shutter curtain (30) consisting of individual slats, wherein the hanging-shutter fastening apparatus (6) comprises a hanging-shutter hinged wing (32, 33, 37) linked on the winding shaft side, to which the hanging shutter is fastened.

Images