EP0158268B1 - Device for blocking a roller shutter - Google Patents

Device for blocking a roller shutter Download PDF

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Publication number
EP0158268B1
EP0158268B1 EP85103985A EP85103985A EP0158268B1 EP 0158268 B1 EP0158268 B1 EP 0158268B1 EP 85103985 A EP85103985 A EP 85103985A EP 85103985 A EP85103985 A EP 85103985A EP 0158268 B1 EP0158268 B1 EP 0158268B1
Authority
EP
European Patent Office
Prior art keywords
roll shutter
roller shutter
wall
bar
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85103985A
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German (de)
French (fr)
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EP0158268A3 (en
EP0158268A2 (en
Inventor
Hans Groitl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolladen Braun KG
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Rolladen Braun KG
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Publication date
Application filed by Rolladen Braun KG filed Critical Rolladen Braun KG
Priority to AT85103985T priority Critical patent/ATE33286T1/en
Publication of EP0158268A2 publication Critical patent/EP0158268A2/en
Publication of EP0158268A3 publication Critical patent/EP0158268A3/en
Application granted granted Critical
Publication of EP0158268B1 publication Critical patent/EP0158268B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B2009/801—Locking arrangements
    • E06B2009/802—Locking arrangements located in or close to shutter box

Definitions

  • the invention relates to a locking device provided on a roller shutter of the type specified by claim 1.
  • a locking device of this type known from DE-U-6929903 for so-called mini-roller shutters
  • the free end of the bracket fields is riveted directly to the central hollow chamber of the uppermost roller shutter slat, so that its free end edge formed by a hook strip in the event of an unauthorized pushing up of the roller shutter can be pushed from the outside into a downwardly open holding mouth of an opening width of an L- or U-shaped profile bar which corresponds to the thickness of the top roller shutter bar, by means of which a sheet metal box covering the mini roller shutters is screwed to a window frame.
  • the fastening rivet for the free end of the bow spring forms the relevant pressure transmission element for its internal stress, under which the hook strip of the uppermost roller shutter bar is threaded into the holding mouth of this profile bar, which forms a stop, if the roller shutter should be pushed up from the outside without authorization. If, on the other hand, the roller shutter is pulled up in an authorized manner by a rotation of the winding roller effected by means of a belt pulley with a winding belt, then the internal stress of the bracket fields on their fastening rivet is translated for a deflection of the uppermost roller shutter rod against the winding roller.
  • the invention characterized by the claims solves the problem of designing a locking device of the specified type provided on a roller shutter in such a way that when used on roller shutters with a larger surface area and therefore a correspondingly greater weight, a greater security factor for an unauthorized pushing up of the roller shutter from the outside in cooperation the bow spring is obtained with the stop provided for the free end edge of the top roller shutter bar.
  • the advantages achieved by the invention are essentially that, by integrating the connecting rod, an effective pressure transmission member is obtained in the center of gravity of the top roller shutter rod, on which the internal stresses of all the bow springs provided for its suspension are concentrated when the roller shutter is lowered. Because the connecting rod simultaneously forms an abutment under this internal tension of all the bow springs with respect to the stop, on the other hand, the outer wall of the top roller shutter rod is pressed against the inside of the outer wall of the roller shutter box with this tension concentrated on the connecting rod, a part of this compressive force then also experiences a transfer to the free end edge of the uppermost roller shutter slat engaged with the stop. If, therefore, unauthorized attempts should be made to push up the lowered roller shutter from the outside, the abutment formed with the connecting rod proves to be so strong that the roller shutter cannot even be moved by a few centimeters.
  • the locking device according to the invention also provides an extremely simple and largely error-free installation option, regardless of how many bow springs are provided for a suspension of the roller shutters on the winding roller, which may be realized by means of additional belt straps, because the inner wall of the uppermost roller shutter rod for exposing the connecting rod at its central hollow chamber can be easily cut out and it is not difficult to attach the associated bow spring to the part length of the connecting rod inserted into the central hollow chamber which is exposed by the cutout.
  • the roller shutter box shown in Fig. 1 in its installation position under the supporting lintel of the wall opening of a window has a design according to DE-PS-3223880 and therefore consists of a U-shaped first box part 1 and an L-shaped second box part 2, the both consist of wood wool (wood shavings) bound with a mineral binder, especially cement.
  • the two box parts 1, 2 are glued to one another on the inner wall 3 of the roller shutter box forming a flange of the U-shaped box part 1 and on the short leg of the L-shaped box part 2 and with a curved heat-insulating lining 4 made of foam plastic, in particular foamed polyurethane, provided that is crescent-shaped so that the cavity of the roller shutter box has a curve that continues in a ceiling-side curve 5 of the U-shaped box part 1.
  • the longer leg of the L-shaped box part 2 forming the bottom of the roller shutter box has an arrangement above a window frame 6.
  • a profile strip 7 is fastened, which in cooperation with the outer wall 8 formed by the other flange of the U-shaped box part 1 constricts a passage slot 9, via which the upper ends of lateral guide rails 10 protrude into the cavity of the roller shutter box.
  • the roller shutter box has a winding roller 11 mounted in lateral bearings, to which the one end 12 of a bow spring 13 is fastened.
  • the bow spring 13 is provided together with other bow springs attached along the axis of the winding roller 11 at intervals of, for example, 50 cm and with a width of, for example, 2 cm made of spring steel for suspending a roller shutter 14, which is composed of interlocking hollow chamber profile bars is and is guided laterally by the guide rails 10.
  • the roller shutter 14 With a rotation of the winding roller 11 in a counterclockwise direction by means of a belt pulley attached to it (not shown) and a conventional roller shutter belt, the roller shutter 14 can thus be completely wound onto the winding roller 11 by means of the bow springs 13, as a result of which a winding diameter indicated by the circular line 15 for the roller shutter is obtained, with respect to which the ceiling-side curvature 5 of the roller shutter box also obtained with the inclusion of the lining 4 is essentially concentric.
  • the locking device comprises a rod 16 which is inserted into the central hollow chamber 17 of the top roller shutter rod 18 loosely or alternatively with its center of gravity, or alternatively also snugly.
  • the with the roller shutter bar 18 having a substantially identical length 16 is exposed on the bow spring 13 by a cutout 19 of the inner wall 20 of the shutter bar 18, so that at this point the free end 21 of the bow spring 13 on the bar 16, for example, with training a tab can be fastened, which is threaded over the cutout 19 for looping around the part length of the rod 16 exposed by it and for fastening its free end by spot welding 22.
  • the connecting rod 16 which is therefore provided jointly for all the bow springs, is made of metal, then alternatively a direct welding of the bow springs can also be provided with a suitable precaution against a risk of damage to the roller shutter bar, which, on the other hand, is less critical with this preferred spot welding of a tongue formation of the bow springs .
  • the locking device further comprises a stop, which is formed by a stop shoulder 23 provided on the inside of its outer wall 8 or provided in the transition to the round curvature 5 of the roller shutter box, or an alternatively attached stop bar at the same point.
  • a stop shoulder 23 when the roller shutter 14 is completely lowered, the free end edge of the uppermost roller shutter rod 18, which is formed by a hook strip 24, is held in engagement by the outer wall 26 provided with a sealing strip 25, with the connection rod 16 being mediated by the internal stress of the bow springs 13 against the inside the outer wall 8 of the roller shutter box is pressed.
  • the stop shoulder 23 can already be provided during the manufacture of the roller shutter box by appropriately designing a press mold used for the U-shaped box part 1. Alternatively, it is instead also possible to design this stop shoulder 23 with the lining 4, in addition to a stop bar in accordance with the information already given, which then only has to be continued accordingly.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

1. An interlock means on a roll shutter (14) which is guided in lateral guide rails (10) and suspended on the winding drum (11) of a roll shutter case (1, 2), the roll shutter being composed of hollow profiled bars of which the free edge (24) of the uppermost roll shutter bar (18) may be pressed against a stop motion device (23) effective in the screening plane of the roll shutter (14) by means of at least one bowed spring (13) which is fixed on the winding drum (11) and connected to the central hollow chamber (17) of said bar for forming a burglarproof means for the roll shutter (14) in respect to an unauthorized pushing upwardly from outside, characterized in that the bowed spring (13) is fixed on a connecting rod (16) which is inserted into the central hollow chamber (17) of the uppermost roll shutter bar (18) either loosely or strongly fitted in common with its central axis and of substantially the same length and which is uncovered by an opening (19) of its inner wall (20), and that the stop motion device is formed by means of either a stopping shoulder (23) or a stopping ledge provided on the inner side of the outer wall (6) of the roll shutter case (1, 2) substantially in the transition to a rounding of its upper wall.

Description

Die Erfindung bezieht sich auf eine an einem Rolladen vorgesehene Sperreinrichtung der durch den Patentanspruch 1 angegebenen Gattung.The invention relates to a locking device provided on a roller shutter of the type specified by claim 1.

Bei einer aus dem DE-U-6929903 für sog. Mini-Rolläden bekannten Sperreinrichtung dieser Art ist das freie Ende der Bügelfelder direkt mit der mittigen Hohlkammer des obersten Rolladenstabes vernietet, so dass dessen durch eine Hakenleiste gebildete freie Endkante bei einem unbefugten Hochschieben des Rolladens von aussen in ein nach unten offenes Haltemaul einer mit der Dicke des obersten Rolladenstabes übereinstimmenden Öffnungsweite eines L- oder U-förmigen Profilstabes vorgeschoben werden kann, mittels welchem ein den Mini-Rolladen abdeckender Blechkasten an einem Fensterrahmen verschraubt wird. Bei dieser bekannten Sperreinrichtung bildet somit der Befestigungsniet für das freie Ende der Bügelfeder das massgebliche Druckübertragungsglied für deren Eigenspannung, unter welcher die Hakenleiste des obersten Rolladenstabes ein Einfädeln in das Haltemaul dieses einen Anschlag bildenden Profilstabes erfährt, wenn der Rolladen von aussen unbefugt hochgeschoben werden sollte. Wenn der Rolladen andererseits in befugter Weise durch eine über eine Gurtscheibe mit Aufziehgurt bewirkte Drehung der Wickelwalze hoch gezogen wird, dann wird dabei die Eigenspannung der Bügelfelder an ihrem Befestigungsniet für eine Auslenkung des obersten Rolladenstabes gegen die Wickelwalze übersetzt.In a locking device of this type known from DE-U-6929903 for so-called mini-roller shutters, the free end of the bracket fields is riveted directly to the central hollow chamber of the uppermost roller shutter slat, so that its free end edge formed by a hook strip in the event of an unauthorized pushing up of the roller shutter can be pushed from the outside into a downwardly open holding mouth of an opening width of an L- or U-shaped profile bar which corresponds to the thickness of the top roller shutter bar, by means of which a sheet metal box covering the mini roller shutters is screwed to a window frame. In this known locking device, the fastening rivet for the free end of the bow spring forms the relevant pressure transmission element for its internal stress, under which the hook strip of the uppermost roller shutter bar is threaded into the holding mouth of this profile bar, which forms a stop, if the roller shutter should be pushed up from the outside without authorization. If, on the other hand, the roller shutter is pulled up in an authorized manner by a rotation of the winding roller effected by means of a belt pulley with a winding belt, then the internal stress of the bracket fields on their fastening rivet is translated for a deflection of the uppermost roller shutter rod against the winding roller.

Wenn dieses Prinzip einer der Einbruchsicherung dienenden Sperreinrichtung auf grösserflächige und daher ein entsprechend grösseres Eigengewicht aufweisende Rolläden übertragen wird, dann besteht dabei die Gefahr eines Ausbrechens des für die Bügelfeder vorgesehenen Befestigungsnietes. Diese Gefahr tritt insbesondere dann entsprechend verstärkt auf, wenn unter Berücksichtigung des vielfachen Herablassens und Hochziehens des Rolladens die einzelnen, meistens nur lose miteinander verhakten Rolladenstäbe in den seitlichen Führungsschienen verklemmen sollten. Bei einer dabei gleichzeitig mit mehreren Bügelfedern verwirklichten ausschliesslichen Aufhängung des Rolladens an der Wickelwalze ergibt deren Befestigungsprinzip andererseits den Nachteil, dass ungleich grosse Spannlängen der Bügelfedern zwischen ihrer Befestigung an der Wickelwalze und der Befestigung an dem obersten Rolladenstab als Folge von axialen Fluchtungsfehlern bei der Montage das Einfädeln der Hakenleiste in das Haltemaul ihres als Anschlag vorgesehenen Profilstabes erschweren können. Hierbei ist auch zu berücksichtigen, dass das Vernieten der Bügelfedern mit der mittigen Hohlkammer des obersten Rolladenstabes eine Anlage des gekrümmten Endabschnittes der Bügelfedern an dessen Innenwand erfordert, so dass damit bei einem unbefugten Hochschieben des Rolladens von aussen anfänglich eine entsprechend gekrümmte Führungsbahn für die Hakenleiste des obersten Rolladenstabes erhalten wird, die diesen Einfädelungsvorgang bei einer als weiterer Unsicherheitsfaktor noch hinzu kommenden ungenauen Befestigung des Profilstabes an dem Fensterrahmen mit einem praktizierten Spiel von einigen Zentimetern ablaufen lässt. Diese wenigen Zentimeter können aber in der Übertragung auf den bei herabgelassenem Rolladen untersten Rolladenstab bereits für eine Einbruchmöglichkeit ausreichen, weil dann ein Einbruchwerkzeug unter den untersten Rolladenstab vorgeschoben werden kann.If this principle of a burglar-proof locking device is transferred to roller shutters with a larger surface and therefore having a correspondingly greater weight, there is a risk of the fastening rivet provided for the bow spring breaking away. This danger arises in a correspondingly greater manner if, taking into account the multiple lowering and pulling up of the roller shutter, the individual roller shutter rods, which are mostly only loosely hooked together, should jam in the side guide rails. In the case of an exclusive suspension of the roller shutter on the winding roller, which is realized simultaneously with several bow springs, their fastening principle on the other hand has the disadvantage that unequal clamping lengths of the strap springs between their attachment to the winding roller and the attachment to the top roller shutter rod as a result of axial misalignment during assembly Threading the hook bar into the holding mouth of their profile bar provided as a stop can complicate. It should also be taken into account here that the riveting of the bow springs with the central hollow chamber of the uppermost roller shutter bar requires the curved end section of the bow springs to bear against its inner wall, so that when the roller shutter is pushed up from the outside without authorization, a correspondingly curved guideway for the hook strip of the The top roller shutter rod is obtained, which allows this threading process to take place with a practiced play of a few centimeters with an inaccurate fastening of the profile rod to the window frame, which is added as a further uncertainty factor. However, these few centimeters can already be sufficient for a break-in possibility in the transmission to the lowest roller shutter rod when the roller shutter is lowered, because then an intrusion tool can be pushed under the lowest roller shutter rod.

Die durch die Patentansprüche gekennzeichnete Erfindung löst die Aufgabe, eine an einem Rollladen vorgesehene Sperreinrichtung der angegebenen Gattung derart auszubilden, dass in der Anwendung auf grösserflächige und daher auch ein entsprechend grösseres Eigengewicht aufweisende Rolläden ein grösserer Sicherheitsfaktor für ein unbefugtes Hochschieben des Rolladens von aussen in Zusammenwirken der Bügelfeder mit dem für die freie Endkante des obersten Rolladenstabes vorgesehenen Anschlag erhalten wird.The invention characterized by the claims solves the problem of designing a locking device of the specified type provided on a roller shutter in such a way that when used on roller shutters with a larger surface area and therefore a correspondingly greater weight, a greater security factor for an unauthorized pushing up of the roller shutter from the outside in cooperation the bow spring is obtained with the stop provided for the free end edge of the top roller shutter bar.

Die durch die Erfindung erreichten Vorteile liegen im wesentlichen darin, dass durch die Integrierung des Verbindungsstabes ein in der Schwerachse des obersten Rolladenstabes wirksames Druckübertragungsglied erhalten wird, auf welches bei herabgelassenem Rolladen die Eigenspannungen aller für seine Aufhängung vorgesehener Bügelfedern konzentriert sind. Weil der Verbindungsstab dabei gleichzeitig in bezug auf den Anschlag ein unter dieser Eigenspannung aller Bügelfedern stehendes Widerlager bildet, wird damit andererseits die Aussenwand des obersten Rolladenstabes mit dieser auf den Verbindungsstab konzentrierten Spannung gegen die Innenseite der Aussenwand des Rolladenkastens angedrückt, wobei ein Teil dieser Druckkraft dann auch eine Übertragung auf die mit dem Anschlag in Eingriff befindliche freie Endkante des obersten Rolladenstabes erfährt. Wenn daher unbefugt versucht werden sollte, den herabgelassenen Rollladen von aussen hochzuschieben, dann erweist sich das mit dem Verbindungsstab gebildete Widerlager derart stark, dass der Rolladen nicht einmal um wenige Zentimeter bewegt werden kann.The advantages achieved by the invention are essentially that, by integrating the connecting rod, an effective pressure transmission member is obtained in the center of gravity of the top roller shutter rod, on which the internal stresses of all the bow springs provided for its suspension are concentrated when the roller shutter is lowered. Because the connecting rod simultaneously forms an abutment under this internal tension of all the bow springs with respect to the stop, on the other hand, the outer wall of the top roller shutter rod is pressed against the inside of the outer wall of the roller shutter box with this tension concentrated on the connecting rod, a part of this compressive force then also experiences a transfer to the free end edge of the uppermost roller shutter slat engaged with the stop. If, therefore, unauthorized attempts should be made to push up the lowered roller shutter from the outside, the abutment formed with the connecting rod proves to be so strong that the roller shutter cannot even be moved by a few centimeters.

Die erfindungsgemässe Sperreinrichtung ergibt ausserdem unabhängig davon eine äusserst einfache und weitgehend fehlerfreie Montagemöglichkeit, wie viele Bügelfedern für eine ggf. mittels zusätzlicher Gurtbänder verwirklichte Aufhängung der Rolladen an der Wickelwalze vorgesehen werden, weil die Innenwand des obersten Rolladenstabes für eine Freilegung des Verbindungsstabes an dessen mittiger Hohlkammer leicht ausgeschnitten werden kann und es keine Schwierigkeiten bereitet, dann an der durch den Ausschnitt freigelegten Teillänge des in die mittige Hohlkammer eingesteckten Verbindungsstabes die zugeordnete Bügelfeder zu befestigen.The locking device according to the invention also provides an extremely simple and largely error-free installation option, regardless of how many bow springs are provided for a suspension of the roller shutters on the winding roller, which may be realized by means of additional belt straps, because the inner wall of the uppermost roller shutter rod for exposing the connecting rod at its central hollow chamber can be easily cut out and it is not difficult to attach the associated bow spring to the part length of the connecting rod inserted into the central hollow chamber which is exposed by the cutout.

Ein Ausführungsbeispiel der erfindungsgemässen Sperreinrichtung ist in der Zeichnung schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt:

  • Fig. 1 einen Querschnitt eines über einem Fensterstock eingebauten Rolladenkastens mit der für den Rolladen vorgesehenen Sperreinrichtung;
  • Fig. 2 eine Draufsicht auf eine Teillänge des obersten Rolladenstabes, und
  • Fig. 3 eine Seitenansicht der in Fig. 2 gezeigten Einzelheit.
An embodiment of the locking device according to the invention is shown schematically in the drawing and is described in more detail below. It shows:
  • Fig. 1 shows a cross section of a fen sterstock built-in roller shutter box with the locking device provided for the roller shutter;
  • Fig. 2 is a plan view of a partial length of the top roller shutter bar, and
  • Fig. 3 is a side view of the detail shown in Fig. 2.

Der in Fig. 1 in seiner Einbaulage unter dem tragenden Sturz der Maueröffnung eines Fensters dargestellte Rolladenkasten weist eine Ausbildung gemäss der DE-PS-3223880 auf und besteht daher aus einem U-förmigen ersten Kastenteil 1 und einem L-förmigen zweiten Kastenteil 2, die beide aus mit mineralischem Bindemittel, insbesondere Zement, gebundener Holzwolle (Holzspäne) bestehen. Die beiden Kastenteile 1, 2 sind an dem eine Innenwand 3 des Rolladenkastens bildenden einen Flansch des U-förmigen Kastenteils 1 und an dem kurzen Schenkel des L-förmigen Kastenteils 2 miteinander verklebt und mit einer gekrümmten wärmedämmenden Auskleidung 4 aus Schaumkunststoff, insbesondere geschäumtem Polyurethan, versehen, die sichelförmig so ausgeführt ist, dass der Hohlraum des Rolladenkastens eine Rundung aufweist, die sich in einer deckenseitigen Rundung 5 des U-förmigen Kastenteils 1 fortsetzt. Der den Boden des Rolladenkastens bildende längere Schenkel des L-förmigen Kastenteils 2 weist eine Anordnung oberhalb eines Fensterstockes 6 auf. An dem Fensterstock 6 ist eine Profilleiste 7 befestigt, die im Zusammenwirken mit der durch den anderen Flansch des U-förmigen Kastenteils 1 gebildeten Aussenwand 8 einen Durchtrittsschlitz 9 einengt, über welchen die oberen Enden von seitlichen Führungsschienen 10 in den Hohlraum des Rolladenkastens vorstehen.The roller shutter box shown in Fig. 1 in its installation position under the supporting lintel of the wall opening of a window has a design according to DE-PS-3223880 and therefore consists of a U-shaped first box part 1 and an L-shaped second box part 2, the both consist of wood wool (wood shavings) bound with a mineral binder, especially cement. The two box parts 1, 2 are glued to one another on the inner wall 3 of the roller shutter box forming a flange of the U-shaped box part 1 and on the short leg of the L-shaped box part 2 and with a curved heat-insulating lining 4 made of foam plastic, in particular foamed polyurethane, provided that is crescent-shaped so that the cavity of the roller shutter box has a curve that continues in a ceiling-side curve 5 of the U-shaped box part 1. The longer leg of the L-shaped box part 2 forming the bottom of the roller shutter box has an arrangement above a window frame 6. On the window frame 6, a profile strip 7 is fastened, which in cooperation with the outer wall 8 formed by the other flange of the U-shaped box part 1 constricts a passage slot 9, via which the upper ends of lateral guide rails 10 protrude into the cavity of the roller shutter box.

Der Rolladenkasten weist eine in seitlichen Lagern gelagerte Wickelwalze 11 auf, an welcher das eine Ende 12 einer Bügelfeder 13 befestigt ist. Die Bügelfeder 13 ist gemeinsam mit weiteren, längs der Achse der Wickelwalze 11 in Abständen von beispielsweise 50 cm befestigten und dabei mit einer Breite von beispielsweise 2 cm aus Federstahl gleich ausgebildeten Bügelfedern zur Aufhängung eines Rolladens 14 vorgesehen, der aus miteinander verhakten Hohlkammer-Profilstäben zusammengesetzt ist und durch die Führungsschienen 10 seitlich geführt wird. Bei einer Drehung der Wickelwalze 11 im Uhrzeigergegensinn unter Vermittlung einer an ihr befestigten Gurtscheibe (nicht dargestellt) und eines üblichen Rollladengurtes kann somit der Rolladen 14 unter Vermittlung der Bügelfedern 13 vollständig auf die Wickelwalze 11 aufgewickelt werden, wodurch ein mit der Kreislinie 15 verdeutlichter Wickeldurchmesser für den Rolladen erhalten wird, bezüglich welchem die auch unter Einbeziehung der Auskleidung 4 erhaltene deckenseitige Rundung 5 des Rolladenkastens im wesentlichen konzentrisch ausgebildet ist.The roller shutter box has a winding roller 11 mounted in lateral bearings, to which the one end 12 of a bow spring 13 is fastened. The bow spring 13 is provided together with other bow springs attached along the axis of the winding roller 11 at intervals of, for example, 50 cm and with a width of, for example, 2 cm made of spring steel for suspending a roller shutter 14, which is composed of interlocking hollow chamber profile bars is and is guided laterally by the guide rails 10. With a rotation of the winding roller 11 in a counterclockwise direction by means of a belt pulley attached to it (not shown) and a conventional roller shutter belt, the roller shutter 14 can thus be completely wound onto the winding roller 11 by means of the bow springs 13, as a result of which a winding diameter indicated by the circular line 15 for the roller shutter is obtained, with respect to which the ceiling-side curvature 5 of the roller shutter box also obtained with the inclusion of the lining 4 is essentially concentric.

Mit der Bügelfeder 13 wird gleichzeitig eine Sperreinrichtung gebildet, die zur Einbruchsicherung ein unbefugtes Hochschieben des Rolladens 14 von aussen verhindert. Die Sperreinrichtung umfasst dafür einen Stab 16, der in die mittige Hohlkammer 17 des obersten Rolladenstabes 18 mithin achsgleich mit dessen Schwerachse lose oder alternativ auch satt eingesteckt ist. Der mit dem Rolladenstab 18 eine im wesentlichen übereinstimmende Länge aufweisende Stab 16 ist an der Bügelfeder 13 durch einen Ausschnitt 19 der Innenwand 20 des Rolladenstabes 18 freigelegt, so dass an dieser Stelle das freie Ende 21 der Bügelfeder 13 an dem Stab 16 beispielsweise mit der Ausbildung einer Lasche befestigt werden kann, die über den Ausschnitt 19 für eine Umschlingung der durch ihn freigelegten Teillänge des Stabes 16 und eine Befestigung ihres freien Endes durch eine Punktverschweissung 22 eingefädelt wird. Wenn der mithin für alle Bügelfedern gemeinsam vorgesehene Verbindungsstab 16 aus Metall besteht, dann kann dafür alternativ auch eine direkte Anschweissung der Bügelfedern bei einer entsprechenden Vorkehrung gegen eine Beschädigungsgefahr des Rolladenstabes vorgesehen werden, die andererseits mit dieser daher bevorzugten Punktverschweissung einer Laschenausbildung der Bügelfedern weniger kritisch ist.With the bow spring 13, a locking device is formed at the same time, which prevents unauthorized pushing up of the roller shutter 14 from the outside to prevent break-ins. For this purpose, the locking device comprises a rod 16 which is inserted into the central hollow chamber 17 of the top roller shutter rod 18 loosely or alternatively with its center of gravity, or alternatively also snugly. The with the roller shutter bar 18 having a substantially identical length 16 is exposed on the bow spring 13 by a cutout 19 of the inner wall 20 of the shutter bar 18, so that at this point the free end 21 of the bow spring 13 on the bar 16, for example, with training a tab can be fastened, which is threaded over the cutout 19 for looping around the part length of the rod 16 exposed by it and for fastening its free end by spot welding 22. If the connecting rod 16, which is therefore provided jointly for all the bow springs, is made of metal, then alternatively a direct welding of the bow springs can also be provided with a suitable precaution against a risk of damage to the roller shutter bar, which, on the other hand, is less critical with this preferred spot welding of a tongue formation of the bow springs .

Die Sperreinrichtung umfasst weiterhin einen Anschlag, der durch eine im wesentlichen im Übergang zu der deckenseitigen Rundung 5 des Rolladenkastens vorgesehene, an der Innenseite seiner Aussenwand 8 verlaufende Anschlagschulter 23 oder eine alternativ an der gleichen Stelle befestigte Anschlagleiste gebildet wird. Mit dieser Anschlagschulter 23 ist bei vollständig herabgelassenem Rolladen 14 die durch eine Hakenleiste 24 gebildete freie Endkante des obersten Rollladenstabes 18 in Eingriff gehalten, indem dafür dessen mit einer Dichtungsleiste 25 versehene Aussenwand 26 unter Vermittlung des Verbindungsstabes 16 durch die Eigenspannung der Bügelfedern 13 gegen die Innenseite der Aussenwand 8 des Rolladenkastens angedrückt wird. Die auf den Verbindungsstab 16 konzentrierte Eigenspannung aller Bügelfedern 13 erfährt mithin in der Schwerachse des obersten Rolladenstabes 18 über die an der Dichtungsleiste 25 zur Übertragung kommende Druckkraft eine Verteilung an die in der Abschirmebene des Rolladens 14 mit der Anschlagschulter 23 in Eingriff gehaltene Hakenleiste 24, so dass es in der Ableitbarkeit auch aus der zeichnerischen Darstellung gemäss Fig. 1 bei vollständig herabgelassenem Rolladen 14 nicht möglich ist, den Rolladen von aussen auch nur um wenige Zentimeter unbefugt hochzuschieben. Gleichzeitig mit dieser somit äusserst grossen Einbruchsicherung des Rolladens 14 wird ausserdem an der Dichtungsleiste 25 eine zusätzliche Abdichtung für den Durchtrittsschlitz 9 erhalten. Wenn andererseits die Wickelwalze 11 für ein befugtes Hochziehen des Rolladens 14 im Uhrzeigergegensinn gedreht wird, dann wird dabei die Eingriffstellung der Hakenleiste 24 mit der Anschlagschulter 23 durch das über den Verbindungsstab 16 entgegen der Eigenspannung der Bügelfedern 18 vermittelte Anziehen des obersten Rolladenstabes 18 gegen die Wickelwalze 11 aufgehoben, so dass dann die Sperreinrichtung nicht mehr wirksam ist.The locking device further comprises a stop, which is formed by a stop shoulder 23 provided on the inside of its outer wall 8 or provided in the transition to the round curvature 5 of the roller shutter box, or an alternatively attached stop bar at the same point. With this stop shoulder 23, when the roller shutter 14 is completely lowered, the free end edge of the uppermost roller shutter rod 18, which is formed by a hook strip 24, is held in engagement by the outer wall 26 provided with a sealing strip 25, with the connection rod 16 being mediated by the internal stress of the bow springs 13 against the inside the outer wall 8 of the roller shutter box is pressed. The internal stress of all the bow springs 13 concentrated on the connecting rod 16 is thus distributed in the center of gravity of the top roller shutter rod 18 via the compressive force transmitted to the sealing strip 25 to the hook strip 24 held in engagement with the stop shoulder 23 in the shielding plane of the roller shutter 14, so that it is not possible to derive it from the drawing shown in FIG. 1 with the roller shutter 14 fully lowered, without even being able to push the roller shutter up by a few centimeters from the outside without authorization. Simultaneously with this extremely large burglary protection of the roller shutter 14, an additional seal for the passage slot 9 is also obtained on the sealing strip 25. If, on the other hand, the winding roller 11 is rotated counterclockwise for an authorized pulling up of the roller shutter 14, the engagement position of the hook strip 24 with the stop shoulder 23 is thereby brought about by the connection rod 16 counteracting the internal tension of the bow springs 18 and tightening the uppermost roller shutter rod 18 against the winding roller 11 canceled so that the locking device is then no longer effective.

Die Anschlagschulter 23 kann bereits bei der Fertigung des Rolladenkastens bereit gestellt werden, indem dafür eine für den U-förmigen Kastenteil 1 verwendete Pressform entsprechend ausgebildet wird. Alternativ ist es stattdessen auch möglich, diese Anschlagschulter 23 ausser mit einer Anschlagleiste entsprechend dem bereits erfolgten Hinweis auch mit der Auskleidung 4 auszubilden, die dafür dann nur entsprechend weitergeführt werden muss.The stop shoulder 23 can already be provided during the manufacture of the roller shutter box by appropriately designing a press mold used for the U-shaped box part 1. Alternatively, it is instead also possible to design this stop shoulder 23 with the lining 4, in addition to a stop bar in accordance with the information already given, which then only has to be continued accordingly.

Claims (4)

1. An interlock means on a roll shutter (14) which is guided in lateral guide rails (10) and suspended on the winding drum (11) of a roll shutter case (1, 2), the roll shutter being composed of hollow profiled bars of which the free edge (24) of the uppermost roll shutter bar (18) may be pressed against a stop motion device (23) effective in the screening plane of the roll shutter (14) by means of at least one bowed spring (13) which is fixed on the winding drum (11) and connected to the central hollow chamber (17) of said bar for forming a burglarproof means for the roll shutter (14) in respect to an unauthorized pushing upwardly from outside, characterized in that the bowed spring (13) is fixed on a connecting rod (16) which is inserted into the central hollow chamber (17) of the uppermost roll shutter bar (18) either loosely or strongly fitted in common with its central axis and of substantially the same length and which is uncovered by an opening (19) of its inner wall (20), and that the stop motion device is formed by means of either a stopping shoulder (23) or a stopping ledge provided on the inner side of the outer wall (6) of the roll shutter case (1, 2) substantially in the transition to.a rounding of its upper wall.
2. An interlock means according to claim 1, characterized in that the bowed spring (13) is fixed on the connecting rod (16) by means of a shackle which may be passed through said opening (19).
3. An interlock means according to claim 1 or 2, characterized in that the stopping shoulder (23) is formed on a heat insulating lining (4) of foamed polyurethane or the like.
4. An interlock means according to any of the claims 1 to 3, characterized in that a sealing ledge (25) is fixed on the outer wall (26) of the uppermost roll shutter bar (18) cooperating in the vicinity of the stopping shoulder (23) with the inner side of the outer wall (8) of the roll shutter case (1, 2).
EP85103985A 1984-04-10 1985-04-02 Device for blocking a roller shutter Expired EP0158268B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103985T ATE33286T1 (en) 1984-04-10 1985-04-02 LOCKING DEVICE ON A ROLLER SHUTTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413503 1984-04-10
DE19843413503 DE3413503A1 (en) 1984-04-10 1984-04-10 LOCKING DEVICE FOR A SHUTTER

Publications (3)

Publication Number Publication Date
EP0158268A2 EP0158268A2 (en) 1985-10-16
EP0158268A3 EP0158268A3 (en) 1986-06-25
EP0158268B1 true EP0158268B1 (en) 1988-03-30

Family

ID=6233189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103985A Expired EP0158268B1 (en) 1984-04-10 1985-04-02 Device for blocking a roller shutter

Country Status (3)

Country Link
EP (1) EP0158268B1 (en)
AT (1) ATE33286T1 (en)
DE (2) DE3413503A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9303720U1 (en) * 1993-03-13 1993-05-13 Streif Ag, 5540 Weinsheim, De
FR2704272B1 (en) * 1993-04-22 1995-06-16 Peyrichou Fermetures Henri Automatic locking device for the top of the roller shutter deck.
GB0216064D0 (en) * 2002-07-11 2002-08-21 Security Window Shutters Ltd Improvements in and relating to roller shutter curtains
FR2873400B1 (en) 2004-07-22 2006-11-10 Jouvence Sarl ASSEMBLY OF ARTICULATED BLADES, APRON OF SHUTTER ROLLING AND SHUTTER SO FORMED
GB2446594A (en) * 2007-02-19 2008-08-20 Sws Roller shutter with abutment
DE102008020298A1 (en) * 2008-04-22 2009-10-29 Kunststoffwerk Katzbach Gmbh & Co. Kg Shutter box

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930178U (en) * 1965-09-04 1965-12-30 Dyna Plastik Werk G M B H DEVICE FOR FASTENING BOX-SHAPED ROLLER SHUTTER PROFILE BARS ON WINDING ROLLERS.
DE6929903U (en) * 1969-07-28 1969-11-20 Heinrich Hoerner SHUTTERS
DE1960899A1 (en) * 1969-12-04 1971-06-09 Heinz Schloemer Automatic roller shutter security
DE2753735A1 (en) * 1977-12-02 1979-06-07 Winfried Zieger Roller shutter window lintel case bottom sealing bars - have protruding anchor stems locking ribs and spring claws engaging groove
DE3000850A1 (en) * 1980-01-11 1981-07-30 Weru Gmbh & Co Kg, 7062 Rudersberg Roller shutter case assembly - has air filled cavities in two cast pieces encircling most of rolled blind
DE3118742A1 (en) * 1981-05-12 1982-12-02 ADT-Götze GmbH, 4000 Düsseldorf Safety locking mechanism for roller blinds
DE3223880C1 (en) * 1982-06-25 1984-01-26 Georg 8491 Chammünster Braun Roller blind housing
DE8320469U1 (en) * 1983-07-15 1983-12-01 KLEINESTRA Kunststoffwerk GmbH & Co KG, 5411 Hillscheid LOCKING DEVICE FOR A SHUTTER

Also Published As

Publication number Publication date
DE3413503C2 (en) 1988-02-11
EP0158268A3 (en) 1986-06-25
EP0158268A2 (en) 1985-10-16
DE3562031D1 (en) 1988-05-05
ATE33286T1 (en) 1988-04-15
DE3413503A1 (en) 1985-10-31

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