EP0707128A1 - Roller blind with brake coupling - Google Patents

Roller blind with brake coupling Download PDF

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Publication number
EP0707128A1
EP0707128A1 EP95113071A EP95113071A EP0707128A1 EP 0707128 A1 EP0707128 A1 EP 0707128A1 EP 95113071 A EP95113071 A EP 95113071A EP 95113071 A EP95113071 A EP 95113071A EP 0707128 A1 EP0707128 A1 EP 0707128A1
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EP
European Patent Office
Prior art keywords
winding shaft
coupling elements
curtain
roller blind
winding
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.)
Granted
Application number
EP95113071A
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German (de)
French (fr)
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EP0707128B1 (en
Inventor
Siegfried Benthin
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Benthin AG
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Benthin AG
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Publication date
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Publication of EP0707128A1 publication Critical patent/EP0707128A1/en
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    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • 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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive

Definitions

  • the invention relates to a cassette roller blind according to the preamble of claim 1.
  • Such a cassette roller blind is known from DE 42 39 507-A1.
  • This document describes alternately with a toothing in axial grooves on the outer circumference of a fixedly anchored pin and in axial grooves on the inner circumference of a tubular, with the drive member can be coupled in the direction of rotation attached friction disks that can be pressed against each other by axial forces with axial displacement.
  • one of two end disks axially displaceable on the journal is loaded in the direction of rotation within a predetermined angle of rotation by a torque spring and the other end disk is only axially displaceable, but coupled non-rotatably to the drive member.
  • the invention solves this problem by training features according to the characterizing part of patent claim 1.
  • This configuration ensures that at the end of the winding movement of the curtain, when the weighting profile has already come into contact with the cassette profile, the drive member can still be rotated by the predetermined angle against the spring action.
  • the weighting profile is held against the cassette profile by the spring force, so that the elements of the now effective brake clutch are movable within the pretensioned angle of rotation for mutual engagement.
  • the spring counteracts the curtain weight and can be made relatively weak, so that the curtain weight pulls the coupling elements attached to the winding shaft into the one stop position.
  • the spring is effective so that it pulls the coupling elements into the other stop position of the predetermined angle of rotation, so that the coupling elements can still be rotated relative to each other within the predetermined angle when the weighting profile is already applied to the cassette profile.
  • the exemplary embodiment shows a cassette roller blind, in which a curtain 1, on the lower edge of which a weighting profile 2 is fastened, within a cassette profile 3 to a winding shaft 4 mounted therein can be wound up.
  • drive links are usually arranged on one side at one end within the winding shaft 4 and are actuated by a drive chain 5 or motor drive means which is led out of the cassette profile 3 to the side next to the curtain 1.
  • Cassette roller blinds according to the invention differ from spring roller blinds in that the curtain 1 is wound onto the winding shaft 4 by driving forces and not by a torsion spring tensioned when the curtain is pulled down.
  • coupling members are provided between the drive member 6, which can be rotated by the drive chain 5, and the winding shaft 4, which enable a rotationally fixed connection between the drive member 6 and the winding shaft 4 for pulling up the curtain 1.
  • brake members are provided between the winding shaft 4 and a fixedly anchored pin 7, by means of which the winding shaft 4 is fixed as soon as no driving forces in the winding direction are effective on the drive member 6.
  • the drive member 6 is mounted concentrically within a tubular housing 8 by stops limited in rotation. The angle of rotation is limited by stops 9 on the inner casing of the tubular winding shaft 4 and by stops 10 on the outer casing of the housing 8.
  • Brake disks 11 and 12 are axially displaceably arranged on the journal 7, which are alternately connected non-rotatably to the journal 7 and rotatably connected to the tubular housing 8 are.
  • the package of brake disks 11 and 12 is supported at one end against a fixed abutment 13 on pin 7.
  • the end plate 14 at the opposite end has an axial curve which interacts with an axial curve on an intermediate member 15 such that the package of the brake disks 11 and 12 is released when the drive member 6 rotates in the winding direction of the curtain 1 and at the start of a rotational movement in the opposite direction is pressed together by the axial curves.
  • a coupling element 16 which is connected to the housing 8 in a rotationally fixed manner, is movably connected at an angle of rotation against a torsion spring 17 to a sleeve 18 which is axially displaceably but non-rotatably connected to the winding shaft 4. Pin-like radial projections of the sleeve 18 engage in profile grooves of the stops 9 on the inner circumference of the tubular winding shaft 4.
  • One end of the torsion spring 17 is fixed to the coupling element 15 and the other end of the torsion spring 17 to the sleeve 18. The torsion spring 17 is tensioned when the drive member 6 rotates in the winding direction of the curtain 1.
  • the curtain weight overcomes the maximum spring tension, so that the tubular housing 8 and the tubular winding shaft 4 reach a stop position defined by the stops 9 and 10.
  • the torsion spring 17 is effective in such a way that it rotates the winding shaft 4 prematurely, so that the drive member 6 can be rotated further when the weighting bar has already assumed the position shown in FIG. 2 and against it Cassette profile 3 is applied, whereby the further rotation of the winding shaft 4 is blocked.
  • the possibility of further rotation is limited by the stops 9 and 10 between the winding shaft 4 and the housing 8.
  • the coupling element 16 which is connected in a rotationally fixed manner to the tubular housing 8, is designed as a sleeve, on which the sleeve 18 is arranged concentrically.
  • the application of the features of the invention is not limited to cassette roller blinds, but can always take place in roller blinds with an actuatable drive member when the rest position of the curtain is to be reached at a precisely predetermined point after a blind actuation, for example in order to avoid or to achieve slot overlaps, or in order to to enable special image designs with the roller blind.

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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)
  • Blinds (AREA)

Abstract

The roller blind has a wt. strip at the lower end of the blind sheet and a drive. Coupling components with a winding shaft located in a cassette, complementary coupling components with a drive component and complementary coupling components are arranged on a statically fixable pin. The coupling components of the drive component and of the winding shaft, with a rotary movement of the drive component in the winding up direction of the blind sheet, come into counterpoised engagement with engagement and coupling components of the winding shaft and of the pin. On the winding shaft are provided coupling components comprising two concentrically interengaged casings (16, 18) rotatively movable against one another and loaded by a torsion spring (17) against the rotary direction of the drive component (6) when the blind sheet is wound up.

Description

Die Erfindung bezieht sich auf ein Kassettenrollo nach dem Oberbegriff des Patentanspruches 1.The invention relates to a cassette roller blind according to the preamble of claim 1.

Ein solches Kassettenrollo ist aus DE 42 39 507 -A1-bekannt. Diese Druckschrift beschreibt abwechselnd mit einer Verzahnung in Axialnuten am Außenumfang eines ortsfest verankerten Zapfens und in Axialnuten am Innenumfang eines rohrförmigen, mit dem Antriebsglied in Drehrichtung kuppelbaren Gehäuses befestigte Reibscheiben, die durch Axialkräfte unter axialer Verschiebung gegeneinander preßbar sind. Dazu ist eine von zwei auf dem Zapfen axial verschiebbaren Endscheiben in Drehrichtung innerhalb eines vorbestimmten Drehwinkels durch eine Drehmomentfeder belastet und die andere Endscheibe lediglich axial verschiebbar, aber drehfest mit dem Antriebsglied gekuppelt. Durch die relativ schwache Drehmomentfeder werden relativ große Kuplungs- bzw. Bremskräfte initiiert, so daß ein solcher Antrieb besonders leichtgängig und vor allem für große Behanggewichte geeignet ist. Bei solchen und vergleichbaren Kassettenrollos stellt sich das Problem, daß das am unteren Rand des Behanges angeordnete Beschwerungsprofil beim Hochziehen des Behanges zwar gegen das Kassettenprofil der die Wickelwelle und das darauf aufgewickelte Rollo aufnehmenden Kassette gezogen werden kann, aber nach dem Loslassen der Antriebskräfte ein kurzes Stück zurückfällt, so daß ein schmaler Streifen des Behanges zwischen dem Beschwerungsprofil und dem Kassettenprofil erneut sichtbar wird. Dies ist häufig unerwünscht, weil es das Aussehen des hochgezogenen Kassettenrollos beeinträchtigt.Such a cassette roller blind is known from DE 42 39 507-A1. This document describes alternately with a toothing in axial grooves on the outer circumference of a fixedly anchored pin and in axial grooves on the inner circumference of a tubular, with the drive member can be coupled in the direction of rotation attached friction disks that can be pressed against each other by axial forces with axial displacement. For this purpose, one of two end disks axially displaceable on the journal is loaded in the direction of rotation within a predetermined angle of rotation by a torque spring and the other end disk is only axially displaceable, but coupled non-rotatably to the drive member. Due to the relatively weak torque spring, relatively large coupling or Braking forces initiated, so that such a drive is particularly smooth and especially suitable for large curtain weights. With such and comparable cassette roller blinds, the problem arises that the weighting profile arranged at the lower edge of the curtain can be pulled against the cassette profile of the cassette that accommodates the winding shaft and the roller blind wound thereon when the curtain is pulled up, but a short distance after releasing the driving forces falls back, so that a narrow strip of curtain between the weighting profile and the cassette profile is visible again. This is often undesirable because it affects the appearance of the raised roller blind.

Es ist daher Aufgabe der Erfindung, die Antriebsmittel des Rollos derart zu gestalten, daß das Beschwerungsprofil nach dem Hochziehen des Rollos nicht mehr zurücksackt.It is therefore an object of the invention to design the drive means of the roller blind in such a way that the weighting profile no longer sags after the roller blind is pulled up.

Die Erfindung löst diese Aufgabe durch Ausbildungsmerkmale nach dem Kennzeichen des Patentanspruches 1.The invention solves this problem by training features according to the characterizing part of patent claim 1.

Durch diese Ausbildung wird erreicht, daß das Antriebsglied am Ende der Aufwickelbewegung des Behanges, wenn das Beschwerungsprofil bereits gegen das Kassettenprofil zur Anlage gekommen ist, noch um den vorgegebenen Winkel gegen die Federwirkung weitergedreht werden kann. Beim Loslassen der manuell oder motorisch ausgeübten Antriebskraft wird das Beschwerungsprofil durch die Federkraft gegen das Kassettenprofil gehalten, so daß die Elemente der nunmehr wirksamen Bremskupplung innerhalb des vorgespannten Drehwinkels zum gegenseitigen Eingriff beweglich sind. Die Feder wirkt dem Behanggewicht entgegen und kann relativ schwach ausgebildet sein, so daß das Behanggewicht die an der Wickelwelle befestigten Kupplungselemente in die eine Anschlaglage zieht. Erst gegen Ende der Aufwickelbewegung des Behanges wird die Feder wirksam, so daß sie die Kupplungselemente in die andere Anschlaglage des vorgegebenen Drehwinkels zieht, so daß die Kupplungselemente noch innerhalb des vorgegebenen Winkels relativ zueinander verdrehbar sind, wenn das Beschwerungsprofil bereits am Kassettenprofil anliegt.This configuration ensures that at the end of the winding movement of the curtain, when the weighting profile has already come into contact with the cassette profile, the drive member can still be rotated by the predetermined angle against the spring action. When the manual or motorized drive force is released, the weighting profile is held against the cassette profile by the spring force, so that the elements of the now effective brake clutch are movable within the pretensioned angle of rotation for mutual engagement. The spring counteracts the curtain weight and can be made relatively weak, so that the curtain weight pulls the coupling elements attached to the winding shaft into the one stop position. Only towards the end of the winding movement the curtain, the spring is effective so that it pulls the coupling elements into the other stop position of the predetermined angle of rotation, so that the coupling elements can still be rotated relative to each other within the predetermined angle when the weighting profile is already applied to the cassette profile.

Vorteilhafte Ausbildungsmerkmale zur weiteren Ausgestaltung der Erfindung enthalten die Ansprüche 2 bis 5.Advantageous training features for further developing the invention contain claims 2 to 5.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

Figur 1
eine perspektivische Darstellung eines Kassettenrollos,
Figur 2
einen Querschnitt durch das Kassettenprofil des hochgezogenen Behanges,
Figur 3
einen Querschnitt entsprechend Figur 2 einer Ausbildung nach dem Stande der Technik,
Figur 4
einen Längsschnitt durch das antriebsseitige Ende der Wickelwelle in einer Achsebene,
Figur 5
einen Querschnitt nach der Linie A - A in Figur 4 und
Figur 6
einen Querschnitt nach der Linie Y - Y in Figur 4.
In the drawing, an embodiment of the invention is shown. Show it:
Figure 1
a perspective view of a cassette roller blind,
Figure 2
a cross section through the cassette profile of the raised curtain,
Figure 3
3 shows a cross section corresponding to FIG. 2 of a design according to the prior art,
Figure 4
a longitudinal section through the drive end of the winding shaft in an axial plane,
Figure 5
a cross section along the line A - A in Figure 4 and
Figure 6
a cross section along the line Y - Y in Figure 4.

Das Ausführungsbeispiel zeigt ein Kassettenrollo, bei dem ein Behang 1, an dessen unterer Kante ein Beschwerungsprofil 2 befestigt ist, innerhalb eines Kassettenprofiles 3 auf eine darin gelagerte Wickelwelle 4 aufwickelbar ist. Dazu dienen meistens einseitig an einem Ende innerhalb der Wickelwelle 4 angeordnete Antriebsglieder, die durch eine seitlich neben dem Behang 1 aus dem Kassettenprofil 3 herausgeführte Antriebskette 5 oder auch motorische Antriebsmittel betätigt werden. Kassettenrollos nach der Erfindung unterscheiden sich von Springrollos dadurch, daß das Aufwickeln des Behanges 1 auf die Wickelwelle 4 durch Antriebskräfte erfolgt und nicht durch eine beim Herunterziehen des Behanges gespannte Torsionsfeder. Zwischen dem durch die Antriebskette 5 drehbaren Antriebsglied 6 und der Wickelwelle 4 sind einerseits Kupplungsglieder vorgesehen, die zum Hochziehen des Behanges 1 eine drehfeste Verbindung zwischen dem Antriebsglied 6 und der Wickelwelle 4 ermöglichen. Andererseits sind zwischen der Wickelwelle 4 und einem ortsfest verankerten Zapfen 7 Bremsglieder vorgesehen, durch die die Wickelwelle 4 festgesetzt wird, sobald keine Antriebskräfte in Aufwickelrichtung auf das Antriebsglied 6 wirksam sind. Bei dem Ausführungsbeispiel ist das Antriebsglied 6 konzentrisch innerhalb eines rohrförmigen Gehäuses 8 durch Anschläge drehwinkelbegrenzt beweglich gelagert. Die Drehwinkelbegrenzung erfolgt durch Anschläge 9 am Innenmantel der rohrförmigen Wickelwelle 4 und durch Anschläge 10 am Außenmantel des Gehäuses 8. Auf dem Zapfen 7 sind Bremsscheiben 11 und 12 axial verschieblich angeordnet, die abwechselnd drehfest mit dem Zapfen 7 und drehfest mit dem rohrförmigen Gehäuse 8 verbunden sind. Das Paket aus den Bremsscheiben 11 und 12 stützt sich an einem Ende gegen ein fest auf dem Zapfen 7 angeordnetes Widerlager 13 ab. Die Endscheibe 14 am gegenüberliegenden Ende weist eine Axialkurve auf, die mit einer Axialkurve an einem Zwischenglied 15 derart zusammenwirkt, daß das Paket aus den Bremsscheiben 11 und 12 bei einer Drehbewegung des Antriebsgliedes 6 in Aufwickelrichtung des Behanges 1 gelöst und am Beginn einer Drehbewegung in Gegenrichtung durch die Axialkurven zusammengepreßt wird. Ein mit dem Gehäuse 8 drehfest verbundenes Kupplungselement 16 ist in einem Drehwinkel gegen eine Torsionsfeder 17 beweglich mit einer Hülse 18 verbunden, die axialverschieblich aber drehfest mit der Wickelwelle 4 verbunden ist. Zapfenartige Radialvorsprünge der Hülse 18 greifen in Profilnuten der Anschläge 9 am Innenumfang der rohrförmigen Wickelwelle 4 ein. Das eine Ende der Torsionsfeder 17 ist an dem Kupplungselement 15 und das andere Ende der Torsionsfeder 17 an der Hülse 18 festgelegt. Die Torsionsfeder 17 wird bei einer Drehbewegung des Antriebsgliedes 6 in Aufwickelrichtung des Behanges 1 gespannt. Das Behanggewicht überwindet die maximale Federspannung, so daß das rohrförmige Gehäuse 8 und die rohrförmige Wickelwelle 4 in eine durch die Anschläge 9 und 10 definierte Anschlaglage gelangen. Am oberen Ende der Aufrollbewegung des Behanges 1 wird die Torsionsfeder 17 in der Weise wirksam, daß sie die Wickelwelle 4 voreilend verdreht, so daß das Antriebsglied 6 noch weitergedreht werden kann, wenn die Beschwerungsleiste bereits die in Figur 2 dargestellte Position eingenommen hat und gegen das Kassettenprofil 3 anliegt, wodurch die weitere Drehbewegung der Wickelwelle 4 blockiert wird. Zur Vermeidung einer Überdehnung der Torsionsfeder 17 wird die Möglichkeit der Weiterdrehung durch die Anschläge 9 und 10 zwischen der Wickelwelle 4 und dem Gehäuse 8 begrenzt. Damit nun die Bremswirkung des Paketes aus den Bremsscheiben 11 und 12 wirksam werden kann, ist eine geringfügige Rückdrehung des Antriebsgliedes 6 erforderlich. Diese erfolgt nunmehr innerhalb der Federspannung, so daß das Beschwerungsprofil 2 nicht in die in Figur 3 dargestellte, unerwünschte Lage absacken kann. Die Größe des durch die Anschläge 9 und 10 begrenzten Winkels sollte größer sein, als der für den Eingriff der Bremselemente erforderliche Drehwinkel, so daß das Beschwerungsprofil 2 in der in Figur 2 dargestellten Stellung mit geringer Federspannung gegen das Kassettenprofil 3 gehalten wird. Bei dem Ausführungsbeispiel ist auch das mit dem rohrförmigen Gehäuse 8 drehfest verbundene Kupplungselement 16 als Hülse ausgebildet, auf der die Hülse 18 konzentrisch angeordnet ist.The exemplary embodiment shows a cassette roller blind, in which a curtain 1, on the lower edge of which a weighting profile 2 is fastened, within a cassette profile 3 to a winding shaft 4 mounted therein can be wound up. For this purpose, drive links are usually arranged on one side at one end within the winding shaft 4 and are actuated by a drive chain 5 or motor drive means which is led out of the cassette profile 3 to the side next to the curtain 1. Cassette roller blinds according to the invention differ from spring roller blinds in that the curtain 1 is wound onto the winding shaft 4 by driving forces and not by a torsion spring tensioned when the curtain is pulled down. On the one hand, coupling members are provided between the drive member 6, which can be rotated by the drive chain 5, and the winding shaft 4, which enable a rotationally fixed connection between the drive member 6 and the winding shaft 4 for pulling up the curtain 1. On the other hand, brake members are provided between the winding shaft 4 and a fixedly anchored pin 7, by means of which the winding shaft 4 is fixed as soon as no driving forces in the winding direction are effective on the drive member 6. In the embodiment, the drive member 6 is mounted concentrically within a tubular housing 8 by stops limited in rotation. The angle of rotation is limited by stops 9 on the inner casing of the tubular winding shaft 4 and by stops 10 on the outer casing of the housing 8. Brake disks 11 and 12 are axially displaceably arranged on the journal 7, which are alternately connected non-rotatably to the journal 7 and rotatably connected to the tubular housing 8 are. The package of brake disks 11 and 12 is supported at one end against a fixed abutment 13 on pin 7. The end plate 14 at the opposite end has an axial curve which interacts with an axial curve on an intermediate member 15 such that the package of the brake disks 11 and 12 is released when the drive member 6 rotates in the winding direction of the curtain 1 and at the start of a rotational movement in the opposite direction is pressed together by the axial curves. A coupling element 16, which is connected to the housing 8 in a rotationally fixed manner, is movably connected at an angle of rotation against a torsion spring 17 to a sleeve 18 which is axially displaceably but non-rotatably connected to the winding shaft 4. Pin-like radial projections of the sleeve 18 engage in profile grooves of the stops 9 on the inner circumference of the tubular winding shaft 4. One end of the torsion spring 17 is fixed to the coupling element 15 and the other end of the torsion spring 17 to the sleeve 18. The torsion spring 17 is tensioned when the drive member 6 rotates in the winding direction of the curtain 1. The curtain weight overcomes the maximum spring tension, so that the tubular housing 8 and the tubular winding shaft 4 reach a stop position defined by the stops 9 and 10. At the upper end of the rolling movement of the curtain 1, the torsion spring 17 is effective in such a way that it rotates the winding shaft 4 prematurely, so that the drive member 6 can be rotated further when the weighting bar has already assumed the position shown in FIG. 2 and against it Cassette profile 3 is applied, whereby the further rotation of the winding shaft 4 is blocked. To avoid overextension of the torsion spring 17, the possibility of further rotation is limited by the stops 9 and 10 between the winding shaft 4 and the housing 8. So that the braking effect of the package from the brake disks 11 and 12 can take effect, a slight backward rotation of the drive member 6 is required. This now takes place within the spring tension, so that the weighting profile 2 cannot sag into the undesired position shown in FIG. The size of the angle delimited by the stops 9 and 10 should be greater than the angle of rotation required for the engagement of the braking elements, so that the weighting profile 2 is shown in FIG Position is held against the cassette profile 3 with low spring tension. In the exemplary embodiment, the coupling element 16, which is connected in a rotationally fixed manner to the tubular housing 8, is designed as a sleeve, on which the sleeve 18 is arranged concentrically.

Die Anwendung der Erfindungsmerkmale ist nicht auf Kassettenrollos beschränkt, sondern kann bei Rollos mit einem betätigbaren Antriebsglied immer dann erfolgen, wenn die Ruhelage des Behanges nach einer Rollobetätigung an einer genau vorbestimmten Stelle erreicht werden soll, beispielsweise um Schlitzüberdeckungen zu vermeiden oder zu erreichen, beziehungsweise um besondere Bildgestaltungen mit dem Rollo zu ermöglichen.The application of the features of the invention is not limited to cassette roller blinds, but can always take place in roller blinds with an actuatable drive member when the rest position of the curtain is to be reached at a precisely predetermined point after a blind actuation, for example in order to avoid or to achieve slot overlaps, or in order to to enable special image designs with the roller blind.

BEZUGSZEICHENLISTE:REFERENCE SIGN LIST:

11
BehangCurtain
22nd
BeschwerungsprofilWeighting profile
33rd
KassettenprofilCassette profile
44th
WickelwelleWinding shaft
55
AntriebsketteDrive chain
66
AntriebsgliedDrive link
77
ZapfenCones
88th
Gehäusecasing
99
Anschlagattack
1010th
Anschlagattack
1111
BremsscheibeBrake disc
1212th
BremsscheibeBrake disc
1313
EndscheibeEnd plate
1414
EndscheibeEnd plate
1515
ZwischengliedPontic
1616
KupplungselementCoupling element
1717th
TorsionsfederTorsion spring
1818th
HülseSleeve

Claims (6)

Kassettenrollo mit einem Beschwerungsprofil am unteren Ende eines Behanges und einem Rolloantrieb, bei dem Kupplungselemente mit einer in dem Kassettenprofil gelagerten Wickelwelle, komplementäre Kupplungselemente mit einem Antriebsglied und komplementäre Kupplungselemente an einem ortsfest befestigbaren Zapfen angeordnet sind, wobei Kupplungselemente des Antriebsgliedes und der Wickelwelle bei einer Drehbewegung des Antriebsgliedes in Aufwickelrichtung des Behanges in gegenseitigen Eingriff und Kupplungselemente der Wickelwelle und des Zapfens in Gegenrichtung in gegenseitigen Eingriff gelangen, dadurch gekennzeichnet, daß die Kupplungselemente an der Wickelwelle gegen Federwirkung in Aufwickelrichtung des Behanges in einem vorgegebenen Winkel drehbeweglich angeordnet sind.Cassette roller blind with a weighting profile at the lower end of a curtain and a roller blind drive, in which coupling elements with a winding shaft mounted in the cassette profile, complementary coupling elements with a drive element and complementary coupling elements are arranged on a fixedly attachable pin, coupling elements of the drive element and the winding shaft during a rotary movement of the drive member in the winding direction of the curtain in mutual engagement and coupling elements of the winding shaft and the pin in the opposite direction come into mutual engagement, characterized in that the coupling elements on the winding shaft against spring action in the winding direction of the curtain are rotatably arranged at a predetermined angle. Kassettenrollo nach Anspruch 1, dadurch gekennzeichnet, daß der Winkel der Verdrehung der Wickelwelle gegenüber den ihr zugeordneten Kupplungselementen größer ist als der für den Eingriff der zwischen der Wickelwelle und dem Zapfen wirksamen Kupplungselemente erforderliche Schaltwinkel.Cassette roller blind according to claim 1, characterized in that the angle of rotation of the winding shaft relative to the coupling elements assigned to it is greater than the switching angle required for the engagement of the coupling elements effective between the winding shaft and the pin. Kassettenrollo nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß an der Wickelwelle (4) Kupplungselemente aus zwei konzentrisch ineinander und gegeneinander drehbeweglich gelagerten, durch eine Torsionsfeder (17) entgegen der Drehrichtung des Antriebsgliedes (6) beim Aufwickeln des Behanges (1) belasteten Hülsen (16,18) vorgesehen sind.Cassette roller blind according to claims 1 and 2, characterized in that on the winding shaft (4) coupling elements made of two concentrically mounted one inside the other and against each other rotatably loaded by a torsion spring (17) against the direction of rotation of the drive member (6) when winding the curtain (1) Sleeves (16, 18) are provided. Kassettenrollo nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die äußere Hülse (18) drehfest mit der Wickelwelle (4) und die innere Hülse (16) zwischen Anschlägen drehbeweglich mit dem Antriebsglied (6) verbunden ist.Cassette roller blind according to claims 1 to 3, characterized in that the outer sleeve (18) is rotatably connected to the winding shaft (4) and the inner sleeve (16) is rotatably connected to the drive member (6) between stops. Kassettenrollo nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die zwischen dem Zapfen (7) und der Wickelwelle (4) wirksamen Kupplungselemente aus abwechselnd drehfest mit dem Zapfen (7) und der Wickelwelle (4) verbundenen und axial wirksame Keilflächen gegeneinander preßbaren Bremsscheiben (11,12) bestehen.Cassette roller blind according to claims 1 to 4, characterized in that the coupling elements which act between the pin (7) and the winding shaft (4) consist of brake disks which can be pressed against one another and are axially effective and can be pressed against the pin (7) and the winding shaft (4) and are axially active (11,12) exist. Rollo mit einem betätigbaren Antriebsglied und einer Bremskupplung, bei dem ein Beschwerungsprofil am unteren Ende eines Behanges und Kupplungselemente mit einer Wickelwelle, komplementäre Kupplungselemente mit dem Antriebsglied und komplementäre Kupplungselemente an einem ortsfest befestigbaren Zapfen angeordnet sind und wobei Kupplungseelemente des Antriebsgliedes und der Wickelwelle bei einer Drehbewegung des Antriebsgliedes in Aufwickelrichtung des Behanges in gegenseitigen Eingriff und Kupplungselemente der Wickelwelle und des Zapfens in bei einer Drehbewegung in Gegenrichtung in gegenseitigen Eingriff gelangen, dadurch gekennzeichnet, daß die Kupplungselemente an der Wickelwelle gegen Federwirkung in Aufwickelrichtung des Behanges in einem vorgegebenen Winkel drehbeweglich angeordnet sind.Roller blind with an actuatable drive element and a brake clutch, in which a weighting profile is arranged at the lower end of a curtain and coupling elements with a winding shaft, complementary coupling elements with the drive element and complementary coupling elements on a fixedly attachable pin, and wherein coupling elements of the drive element and the winding shaft during a rotary movement of the drive member in Winding direction of the curtain in mutual engagement and coupling elements of the winding shaft and of the pin come into mutual engagement during a rotational movement in the opposite direction, characterized in that the coupling elements on the winding shaft are arranged so as to be rotatable against spring action in the winding direction of the curtain at a predetermined angle.
EP95113071A 1994-10-13 1995-08-19 Roller blind with brake coupling Expired - Lifetime EP0707128B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436504A DE4436504C1 (en) 1994-10-13 1994-10-13 Roller blind with brake coupling
DE4436504 1994-10-13

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EP0707128A1 true EP0707128A1 (en) 1996-04-17
EP0707128B1 EP0707128B1 (en) 2000-11-08

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EP95113071A Expired - Lifetime EP0707128B1 (en) 1994-10-13 1995-08-19 Roller blind with brake coupling

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EP (1) EP0707128B1 (en)
CA (1) CA2158702A1 (en)
DE (1) DE4436504C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0101070D0 (en) * 2001-01-16 2001-02-28 Reddiplex Group Plc Display stands
DE102005008486B4 (en) * 2005-02-24 2011-08-18 Perfecta Nova Rolladen und Sonnenschutz GmbH, 86707 Insect screen
IT1394369B1 (en) * 2009-05-26 2012-06-15 Medal Srl ROLLING SHUTTER FOR DOORS AND WINDOWS EQUIPPED WITH BRAKING DEVICE
US10407982B2 (en) * 2014-06-24 2019-09-10 Lutron Technology Company Llc Retention systems for window treatment installations

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239507A1 (en) 1992-11-25 1994-05-26 Benthin Management Gmbh Roller blind drive

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239507A1 (en) 1992-11-25 1994-05-26 Benthin Management Gmbh Roller blind drive

Also Published As

Publication number Publication date
CA2158702A1 (en) 1996-04-14
EP0707128B1 (en) 2000-11-08
DE4436504C1 (en) 1995-11-02

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