EP0536537B1 - Vertical Venetian blind with one-organ actuation - Google Patents

Vertical Venetian blind with one-organ actuation Download PDF

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Publication number
EP0536537B1
EP0536537B1 EP92115144A EP92115144A EP0536537B1 EP 0536537 B1 EP0536537 B1 EP 0536537B1 EP 92115144 A EP92115144 A EP 92115144A EP 92115144 A EP92115144 A EP 92115144A EP 0536537 B1 EP0536537 B1 EP 0536537B1
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EP
European Patent Office
Prior art keywords
idling
gearing
rotation
disc
gear
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EP92115144A
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German (de)
French (fr)
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EP0536537A1 (en
Inventor
Siegfried Benthin
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Benthin Management GmbH
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Benthin Management GmbH
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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
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor

Definitions

  • the invention relates to a vertical blind of the type according to the preamble of claim 1.
  • Such a vertical blind is known from DE-OS 30 29 179, in which the lateral movement of the slats with their slat carriages in the mounting rail for closing and opening the blind and the pivoting or turning of the slats about their vertical central axis by only one drive element can be.
  • This consists of a ball chain, which is led out of the mounting rail with a loop and is coupled in the mounting rail in the slat carriage leading in the closing direction of the slats with an indexable insert.
  • the lamella of this lamella carriage is connected to all other lamellae by means of spacing means arranged between the lamellae, so that all lamellae can be pivoted simultaneously about the vertical axis for a turning process.
  • the same pull cord is thus a lateral displacement of the slats in the closing and opening directions and their Swiveling possible, but swiveling movements of the slats can only be carried out at the end of a sliding movement with the blind closed.
  • Grooved shafts for the swivel drive of the slats around their vertical axis and slip clutches between a gear wheel penetrated by the grooved shaft and a pinion on the swivel pin of the slat are known from DE-OS 23 40 870 and DE-AS 25 54 351. According to this, slip clutches are provided in each of the multi-plate carriages, so that as the number of the multi-plate carriages increases, more effort is required to operate the vertical blind by the pull cord.
  • the object of the invention is the design of a vertical blind with a reversible drive element in the direction that preferably a rotating, motor drive can be used and the turning of the slats around a swivel gear in all slat carriages through a shaft at one end of the Carrier rail concentrated gearbox takes place.
  • the invention solves this problem by training with features according to claim 1.
  • the special advantages also include the possibility of turning the slats in any position of the vertical blind by simply reversing the direction of rotation of the drive element.
  • the planetary gear reduces high drive speeds to speeds that can be used to operate the vertical blind. It enables accommodation with the counter idle gears and the rest Transmission members in a cross-sectional profile which is adapted to the cross-sectional profile of the mounting rail.
  • the axial movement of the switching segments takes place by means of a cam disc which interacts with the end plate at the output of the idle gear assigned to the pull cord drive and engages with its edge in a recess in the switching segments which in one axial end position the pull cord drive and in block the grooved shaft drive in the other axial end position.
  • means are provided which, when the drive is actuated, pivot the slats out of the closed curtain position into an initially partially open position (for example about 30 degrees) before the first slat carriage moves the second slat carriage through the beginning lateral movement of the slat carriage begins with the slats attached to it for closing or opening the vertical blind.
  • the drive In intermediate positions of the curtain or when the curtain is open, the drive is only effective at a pivot angle of less than 180 degrees on the grooved shaft of the pivot drive via the counting disc idle gear assigned to the pivoting movement of the slats.
  • the drawing shows an embodiment in which a rotatable drive member 1 is arranged coaxially to the central wheel 2 of a planetary gear with the planet gears 3, the teeth of which engage in the inner teeth of an outer ring 4.
  • a first counting disc gear 5 is assigned to the drive of the pull cord 6 for the lateral movement of the slats with their slat carriages in a mounting rail 31 via the bevel gear pair 7, 8, of which one bevel gear 7 is mounted coaxially to the central gear 2 of the planetary gear.
  • the planetary gear can be connected to a grooved shaft 11 which, in each lamella carriage, passes axially movably through a driving wheel of a swivel gear for turning the lamellae about its vertical axis.
  • This drive of the grooved shaft 11 is assigned a second idler gear 12, one end plate of which is connected to the housing and the other end plate of which is connected to an opening element 32 of a slip clutch 13, the driving and the driven elements of which are known in the art by a spring 14 in Friction are held together.
  • both idler gear 5 and 12 are designed with six revolutions for a swivel angle of the slats of 180 °.
  • the end disk of the counting disk idle gear 5 located on the torque input side is fixedly connected to an axial curve 15, which is effective against an axially displaceable but non-rotatably arranged disk 16, which engages in the axially movably guided switching segments 35 and 17.
  • the switching segment 17 is inserted by the spring 34 with the locking tooth 18 into a recess 19, several of which are arranged on the circumference of the bevel gear 7, and thereby blocks its rotational movement. Only after the counting disk idle gear 5 has expired does the disk 16, which is connected to the outer ring 4 in a rotationally fixed but axially displaceable manner, pulls the ratchet tooth 18 out of the recess 19 in order to release the bevel gear 7, as shown in FIG. 1.
  • a stop cam 33 on the disk-shaped or sleeve-shaped opening element 32 of the slip clutch 13 causes a return rotation before a lateral displacement movement of the slats is possible from the closed curtain position.
  • the gear 10 is blocked only when leaving the closed curtain position after a backward rotation. If the turn is limited by holding the counter disc 29 (then one revolution is already missing per side), the clutch 13 is held by the counter disc 29 in the position that the switching segment 36 pushes in the direction of rotation in front of the stop cams 33, so that no reverse rotation more can be done.
  • a slide 21 in the direction of the lateral travel movement of the slat carriage is below the counting disk idle gear 5 movably guided and loaded by two springs 22 with a throat contour against thickening 23 of a pull cord 6 designed as a ball chain.
  • Slider 21 laterally engages a lever 24 which is movably mounted about a perpendicular axis transverse to the slider movement and acts with its free end via wedge surfaces 25 on a further lever 26 which is guided approximately vertically movably perpendicular to the slider movement.
  • This lever 26 carries a locking lug 27 which engages in a recess 28 on the circumference of a counting disk 29 of the second counting disk idle gear associated with the spline shaft and is loaded in the direction of engagement by a spring 30 on the lever 26, so that a movement of the slide 21 in the direction the action of its spring 22 on the lever 24 causes an upward movement of the lever 26 against the action of the spring 30 to lift the ratchet tooth 27 out of the recess 28.
  • the mode of operation of the transmission is described as follows, starting from the drawing.
  • the drive member 1 rotates to the right, its rotational movement is transmitted via the outer ring 4 of the planetary gear 2, 3, 4 to the drive gear 10 of the spline shaft 11, since the bevel gear 7 is held by the ratchet tooth 18 of the switching segment 17 becomes.
  • the stop segments of the counting disc idle gears 5 and 12 block, so that the spring 14 is bent and the slip clutch 13 is opened.
  • the switching segment 36 opens the slip clutch 13, so that only the bevel gear 7 is rotated while the drive gear 10 is idling for the rotation of the disks.
  • the disk 16 is pushed back against the disk 38 into the starting position under the action of the spring 20, as a result of which the switching segment 17 is released and pushed by the spring 34 with the ratchet tooth 18 into the region of the recess 19 of the bevel gear 7 and blocked it.
  • the disk 38 is firmly connected to the outer ring 4 and serves only to support the spring 20.
  • the switching segment 36 is pivoted out of the area of the slip clutch 13 via the shift segment 35, as a result of which the bevel gear 7 is blocked again and the driving element of the slip clutch 13 is released is, so that the latter is closed again by the action of the spring 20. Since the last counting disc is firmly connected to the housing, the grooved shaft 11 can only make a total of six revolutions, even if a reverse rotation or a change in the direction of rotation has occurred on the drive element 1 beforehand.
  • the ratchet tooth 27 of the lever 26 engages in a recess 28 on the circumference of the counting disk 29 a, so that only four idle revolutions of the counting disk idle gear 12 are possible, through which only a pivot angle of less than 180 ° can be carried out.

Abstract

The vertical Venetian blind comprising slats each suspended on a respective slat carriage so as to be pivotable about a vertical axis and having a driving element (1), reversible in the direction of movement, for a mechanism which can be connected by coupling elements to an endless pulling cord (6) for the sideways movement of the slat carriages, which are guided in a supporting rail (31), and to a slotted shaft (11) which passes through a pivot mechanism in the slat carriages for turning the slats, has a rotatable driving element (1) connected to an epicyclic mechanism, the driving element (1) being connected to the sun wheel (2), the outer rim (4) of which is connected by a first counting-disc idling mechanism (5), the idling motion of which is matched to a pivoting angle of 180 DEG C of the slats, to a driving wheel (7) for the pulling cord (6) and, via an intermediate gear (10) and a slipping clutch (13), to the slotted shaft (11), this slipping clutch (13) being assigned a second counting-disc driving mechanism (12) for a slat pivoting angle likewise corresponding to 180 DEG , which mechanism opens the slipping clutch (13) at the end of its idling motion and the first counting-disc idling mechanism (5) disengaging, at the end of its idling motion, counter to the action of a spring, a movably guided switching segment (17) which blocks the rotation of the driving wheel (7) for the pulling cord (6). <IMAGE>

Description

Die Erfindung betrifft eine Vertikaljalousie der Gattung nach dem Oberbegriff des Patentanspruches 1.The invention relates to a vertical blind of the type according to the preamble of claim 1.

Aus der DE-OS 30 29 179 ist eine solche Vertikaljalousie bekannt, bei der das seitliche Verfahren der Lamellen mit ihren Lamellenwagen in der Tragschiene zum Schließen und Öffnen der Jalousie und das Schwenken bzw. Wenden der Lamellen um ihre lotrechte Mittelachse durch lediglich ein Antriebsorgan bewirkt werden kann. Dieses besteht aus einer Kugelkette, welche mit einer Schlaufe aus der Tragschiene herausgeführt ist und in der Tragschiene in dem in Schließrichtung der Lamellen vorauseilenden Lamellenwagen mit einer Wendeplatte gekuppelt ist. Die Lamelle dieses Lamellenwagens ist durch zwischen den Lamellen angeordneten Abstandsmitteln mit allen anderen Lamellen verbunden, so daß alle Lamellen gleichzeitig für einen Wendevorgang um die lotrechte Achse schwenkbar sind. Über die gleiche Zugschnur ist somit eine seitliche Verschiebung der Lamellen in Schließrichtung und in Öffnungsrichtung sowie deren Schwenkung möglich, jedoch sind Schwenkbewegungen der Lamellen nur am Ende einer Verschiebebewegung bei geschlossener Jalousie durchführbar.Such a vertical blind is known from DE-OS 30 29 179, in which the lateral movement of the slats with their slat carriages in the mounting rail for closing and opening the blind and the pivoting or turning of the slats about their vertical central axis by only one drive element can be. This consists of a ball chain, which is led out of the mounting rail with a loop and is coupled in the mounting rail in the slat carriage leading in the closing direction of the slats with an indexable insert. The lamella of this lamella carriage is connected to all other lamellae by means of spacing means arranged between the lamellae, so that all lamellae can be pivoted simultaneously about the vertical axis for a turning process. The same pull cord is thus a lateral displacement of the slats in the closing and opening directions and their Swiveling possible, but swiveling movements of the slats can only be carried out at the end of a sliding movement with the blind closed.

Nutwellen für den Schwenkantrieb der Lamellen um ihre lotrechte Achse und Rutschkupplungen zwischen einem von der Nutwelle durchsetzten Zahnrad und einem Ritzel auf dem Schwenkzapfen der Lamelle sind aus der DE-OS 23 40 870 und der DE-AS 25 54 351 bekannt. Hiernach sind Rutschkupplungen in jedem der Lamellenwagen vorgesehen, so daß bei steigender Zahl der Lamellenwagen ein steigender Kraftaufwand für die Bedienung der Vertikaljalousie durch die Zugschnur erforderlich ist.Grooved shafts for the swivel drive of the slats around their vertical axis and slip clutches between a gear wheel penetrated by the grooved shaft and a pinion on the swivel pin of the slat are known from DE-OS 23 40 870 and DE-AS 25 54 351. According to this, slip clutches are provided in each of the multi-plate carriages, so that as the number of the multi-plate carriages increases, more effort is required to operate the vertical blind by the pull cord.

Aufgabe der Erfindung ist die Gestaltung einer Vertikaljalousie mit einem in der Bewegungsrichtung umkehrbaren Antriebsorgan in der Weise, daß bevorzugt ein drehender, motorischer Antrieb zur Anwendung kommen kann und die Wendung der Lamellen um eine ein Schwenkgetriebe in allen Lamellenwagen durchsetzende Nutwelle durch ein an einem Ende der Tragschiene konzentriertes Getriebe erfolgt.The object of the invention is the design of a vertical blind with a reversible drive element in the direction that preferably a rotating, motor drive can be used and the turning of the slats around a swivel gear in all slat carriages through a shaft at one end of the Carrier rail concentrated gearbox takes place.

Die Erfindung löst diese Aufgabe durch eine Ausbildung mit Merkmalen nach dem Patentanspruch 1.The invention solves this problem by training with features according to claim 1.

Hervorstechend ist die Möglichkeit der kompakten Bauweise eines solchen Einorganantriebs für insbesondere motorische Antriebsmittel, die in der Drehrichtung umkehrbar sind. Zu den besonderen Vorteilen zählt aber auch die Möglichkeit der Lamellenwendung in jeder beliebigen Stellung der Vertikaljalousie durch einfache Drehrichtungsumkehr des Antriebsorgans. Das Planetengetriebe untersetzt hohe Antriebsdrehzahlen auf für die Bedienung der Vertikaljalousie brauchbare Drehzahlen. Es ermöglicht die Unterbringung zusammen mit den Zählscheiben-Leerlaufgetrieben und den übrigen Übertragungsgliedern in einem Querschnittsprofil, welches dem Querschnittsprofil der Tragschiene angepaßt ist.What stands out is the possibility of the compact design of such a single-organ drive for motor drive means in particular, which are reversible in the direction of rotation. The special advantages also include the possibility of turning the slats in any position of the vertical blind by simply reversing the direction of rotation of the drive element. The planetary gear reduces high drive speeds to speeds that can be used to operate the vertical blind. It enables accommodation with the counter idle gears and the rest Transmission members in a cross-sectional profile which is adapted to the cross-sectional profile of the mounting rail.

Zur Sicherung des gewünschten Ablaufes der Antriebsbewegungen erfolgt die axiale Bewegung der Schaltsegmente durch eine mit der Endscheibe am Ausgang des dem Zugschnurantrieb zugeordneten Leerlaufgetriebes zusammenwirkende Kurvenscheibe, die mit ihrem Rand in eine Ausnehmung der Schaltsegmente eingreift, welche in der einen axialen Endstellung den Zugschnurantrieb und in der anderen axialen Endstellung den Nutwellenantrieb blockieren.To ensure the desired sequence of drive movements, the axial movement of the switching segments takes place by means of a cam disc which interacts with the end plate at the output of the idle gear assigned to the pull cord drive and engages with its edge in a recess in the switching segments which in one axial end position the pull cord drive and in block the grooved shaft drive in the other axial end position.

Nach einem besonderen Gedanken zur Gestaltung der Erfindung sind Mittel vorgesehen, die bei einer Betätigung des Antriebes aus der geschlossenen Behanglage heraus die Lamellen in eine zunächst teilweise geöffnete Stellung verschwenken (zum Beispiel etwa 30 Grad), bevor der erste Lamellenwagen den zweiten Lamellenwagen durch die beginnende seitliche Fahrbewegung der Lamellenwagen mit den daran hängend angeordneten Lamellen zum Schließen oder Öffnen der Vertikaljalousie beginnt. In Zwischenstellungen des Behangs oder bei geöffnetem Behang ist der Antrieb über das der Schwenkbewegung der Lamellen zugeordneten Zählscheiben-Leerlaufgetriebe nur in einem Schwenkwinkel kleiner als 180 Grad auf die Nutwelle des Schwenkantriebes wirksam. Erst wenn die Lamellen zum Schließen der Jalousie ganz ausgebreitet sind, kann wieder eine Wendebewegung um 180 Grad Schwenkwinkel erfolgen, in der die Lamellen parallel zueinander ausgerichtet sind. Dies vermeidet Beschädigungen der Lamellen durch gewaltsames Gegeneinanderfahren von in einer Ebene ausgerichteten Lamellen.According to a particular idea for the design of the invention, means are provided which, when the drive is actuated, pivot the slats out of the closed curtain position into an initially partially open position (for example about 30 degrees) before the first slat carriage moves the second slat carriage through the beginning lateral movement of the slat carriage begins with the slats attached to it for closing or opening the vertical blind. In intermediate positions of the curtain or when the curtain is open, the drive is only effective at a pivot angle of less than 180 degrees on the grooved shaft of the pivot drive via the counting disc idle gear assigned to the pivoting movement of the slats. Only when the slats are completely spread out to close the blind can a turn movement of 180 degrees pivot angle again, in which the slats are aligned parallel to each other. This avoids damage to the slats due to the violent movement of slats aligned in one plane.

Vorteilhafte Ausbildungen zur Erreichung dieses Zieles sind in den Unteransprüchen 3 bis 7 enthalten.Advantageous training to achieve this goal is contained in subclaims 3 to 7.

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

Figur 1
einen horizontalen Schnitt durch einen Jalousieantrieb mit einem Antriebsorgan,
Figur 2
einen gegenüber Figur 1 um annähernd 90° versetzten Schnitt in einer gegenüber der Vertikalen geneigten Ebene nach Linie II - II der Figur 6,
Figur 3
eine Draufsicht auf Teile des Antriebes unterhalb der Zählscheiben-Leerlaufgetriebe in der Figur 1,
Figur 4
einen Schnitt nach der Linie IV - IV der Figur 1,
Figur 5
einen Schnitt nach der Linie V - V der Figur 3 und
Figur 6
einen in der Schnittebene versetzten Teilschnitt nach der Linie VI - VI der Figur 2.
In the drawing, an embodiment of the invention is shown. Show it:
Figure 1
a horizontal section through a blind drive with a drive element,
Figure 2
6 a section offset by approximately 90 ° in relation to FIG. 1 in a plane inclined with respect to the vertical according to line II-II of FIG. 6,
Figure 3
2 shows a plan view of parts of the drive below the counting disk idle gear in FIG. 1,
Figure 4
2 shows a section along the line IV-IV of FIG. 1,
Figure 5
a section along the line V - V of Figure 3 and
Figure 6
a partial section offset in the sectional plane along the line VI - VI of Figure 2.

Die Zeichnung zeigt ein Ausführungsbeispiel, bei dem ein drehbares Antriebsorgan 1 koaxial zu dem Zentralrad 2 eines Planetengetriebes mit den Umlaufrädern 3 angeordnet ist, deren Verzahnung in die Innenverzahnung eines Außenkranzes 4 eingreifen. Ein erstes Zählscheibengetriebe 5 ist dem Antrieb der Zugschnur 6 für das seitliche Verfahren der Lamellen mit ihren Lamellenwagen in einer Tragschiene 31 über das Kegelradpaar 7,8 zugeordnet, von denen das eine Kegelrad 7 koaxial zu dem Zentralrad 2 des Planetengetriebes gelagert ist. Über eine Außenverzahnung 9 am Außenkranz 4 und ein in diese eingreifendes Zahnrad 10 ist das Planetengetriebe mit einer Nutwelle 11 verbindbar, die in jedem Lamellenwagen ein Treibrad eines Schwenkgetriebes für die Wendung der Lamellen um ihre lotrechte Achse axial beweglich durchsetzt. Diesem Antrieb der Nutwelle 11 ist ein zweites Zählscheiben-Leerlaufgetriebe 12 zugeordnet, dessen eine Endscheibe mit dem Gehäuse und dessen andere Endscheibe mit einem Öffnungselement 32 einer Rutschkupplung 13 verbunden ist, deren treibendes und deren getriebenes Element in an sich bekannter Weise durch eine Feder 14 im Reibschluß zusammengehalten werden. Im Falle des Beispieles sind beide Zählscheiben-Leerlaufgetriebe 5 und 12 mit sechs Umdrehungen für einen Schwenkwinkel der Lamellen von 180° ausgelegt. Die an der Drehmoment-Eingangsseite liegende Endscheibe des Zählscheiben-Leerlaufgetriebes 5 ist mit einer Axialkurve 15 fest verbunden, die gegen eine axial verschiebbar, jedoch drehfest angeordnete Scheibe 16 wirksam ist, die in die axial beweglich geführten Schaltsegmente 35 und 17 eingreift. Das Schaltsegment 17 wird durch die Feder 34 mit dem Sperrzahn 18 in eine Ausnehmung 19, von denen mehrere am Umfang des Kegelrades 7 angeordnet sind, eingeschoben und blockiert dadurch dessen Drehbewegung. Erst nach Ablauf des Zählscheiben-Leerlaufgetriebes 5 zieht die mit dem Außenring 4 drehfest verbundene aber axial verschiebbare Scheibe 16 den Sperrzahn 18 aus der Ausnehmung 19, um das Kegelrad 7, wie in Figur 1 dargestellt, freizugeben. Durch die axiale Verschiebung der Scheibe 16 legen sich Anschläge an der Scheibe 16 gegen Anschläge 37 im Antriebsorgan 1, wodurch der Außenring 4 drehfest mit dem Antriebsorgan 1 verbunden wird. Da das Schaltsegment 17 sich nur einseitig gegen die Scheibe 16 abstützt, wird die Scheibe 16 bei Drehrichtungswechsel durch die Feder 20 zurückgeschoben, auch wenn der Sperrzahn 18 des Schaltsegmentes 17 noch nicht die Ausnehmung 19 des Kegelrades 7 gefunden hat. Durch die axiale Bewegung der Scheibe 16 in Richtung des Antriebsorgans 1 wird gleichzeitig das Schaltsegment 35 in gleicher Richtung verschoben, wodurch ein Schaltsegment 36 in den Drehbereich des Öffnungselementes 32 der Rutschkupplung 13 geschwenkt wird.The drawing shows an embodiment in which a rotatable drive member 1 is arranged coaxially to the central wheel 2 of a planetary gear with the planet gears 3, the teeth of which engage in the inner teeth of an outer ring 4. A first counting disc gear 5 is assigned to the drive of the pull cord 6 for the lateral movement of the slats with their slat carriages in a mounting rail 31 via the bevel gear pair 7, 8, of which one bevel gear 7 is mounted coaxially to the central gear 2 of the planetary gear. Via an external toothing 9 on the outer ring 4 and into this engaging gear 10, the planetary gear can be connected to a grooved shaft 11 which, in each lamella carriage, passes axially movably through a driving wheel of a swivel gear for turning the lamellae about its vertical axis. This drive of the grooved shaft 11 is assigned a second idler gear 12, one end plate of which is connected to the housing and the other end plate of which is connected to an opening element 32 of a slip clutch 13, the driving and the driven elements of which are known in the art by a spring 14 in Friction are held together. In the case of the example, both idler gear 5 and 12 are designed with six revolutions for a swivel angle of the slats of 180 °. The end disk of the counting disk idle gear 5 located on the torque input side is fixedly connected to an axial curve 15, which is effective against an axially displaceable but non-rotatably arranged disk 16, which engages in the axially movably guided switching segments 35 and 17. The switching segment 17 is inserted by the spring 34 with the locking tooth 18 into a recess 19, several of which are arranged on the circumference of the bevel gear 7, and thereby blocks its rotational movement. Only after the counting disk idle gear 5 has expired does the disk 16, which is connected to the outer ring 4 in a rotationally fixed but axially displaceable manner, pulls the ratchet tooth 18 out of the recess 19 in order to release the bevel gear 7, as shown in FIG. 1. Due to the axial displacement of the disk 16, stops on the disk 16 lie against stops 37 in the drive member 1, whereby the outer ring 4 is connected to the drive member 1 in a rotationally fixed manner. Since the switching segment 17 is supported only on one side against the disk 16, the disk 16 is pushed back by the spring 20 when the direction of rotation changes, even if the ratchet tooth 18 of the switching segment 17 has not yet found the recess 19 of the bevel gear 7. Due to the axial movement of the disc 16 in the direction of the drive member 1, the switching segment 35 is simultaneously shifted in the same direction, thereby a Switching segment 36 is pivoted into the range of rotation of the opening element 32 of the slip clutch 13.

Durch einen Anschlagnocken 33 am scheibenförmig oder hülsenförmig ausgebildeten Öffnungselement 32 der Rutschkupplung 13 wird eine Rückdrehung erreicht, bevor aus der geschlossenen Behanglage heraus eine seitliche Verschiebebewegung der Lamellen möglich ist. Bei einer starren Verbindung des Antriebsorgans 1 mit dem Kegelrad 7 am Ende der sechs Leerlaufumdrehungen des Zählscheiben-Leerlaufgetriebes 5 erfolgt eine Drehrichtungsumkehr, so daß das Öffnungselement 32 nahezu 360 Grad entsprechend einer Umdrehung des Zählscheiben-Leerlaufgetriebes 12 in Gegenrichtung rückdrehend frei beweglich ist, bevor der Anschlagnocken 33 durch das in seine Bewegungsbahn geschobene Schaltsegment 36 blockiert und dadurch die Kupplung 13 über die Feder 14 geöffnet wird, so daß das Zahnrad 10 leer mitläuft, ohne daß eine Schwenkbewegung der Lamelle erfolgt. Das Zahnrad 10 wird nur beim Verlassen der geschlossenen Behanglage nach einer Rückdrehung blockiert. Wenn die Wendung durch Festhalten der Zählscheibe 29 begrenzt ist (dann fehlt bereits eine Umdrehung pro Seite), wird die Kupplung 13 durch die Zählscheibe 29 in der Stellung gehalten, daß das Schaltsegment 36 sich in Drehrichtung vor die Anschlagnocken 33 schiebt, so daß keine Rückdrehung mehr erfolgen kann.A stop cam 33 on the disk-shaped or sleeve-shaped opening element 32 of the slip clutch 13 causes a return rotation before a lateral displacement movement of the slats is possible from the closed curtain position. With a rigid connection of the drive member 1 to the bevel gear 7 at the end of the six idling revolutions of the counter idler gear 5, the direction of rotation is reversed, so that the opening element 32 is almost 360 degrees corresponding to one revolution of the counter idler gear 12 in the opposite direction, free to move backwards before the Stop cam 33 blocked by the shift segment 36 pushed into its path of movement and thereby the clutch 13 is opened via the spring 14, so that the gear 10 runs along empty, without a pivoting movement of the lamella. The gear 10 is blocked only when leaving the closed curtain position after a backward rotation. If the turn is limited by holding the counter disc 29 (then one revolution is already missing per side), the clutch 13 is held by the counter disc 29 in the position that the switching segment 36 pushes in the direction of rotation in front of the stop cams 33, so that no reverse rotation more can be done.

Zur Begrenzung der Wendebewegung der Lamellen in Zwischenstellungen auf einen Schwenkwinkel kleiner als 180 Grad, wodurch eine Beschädigung oder Stauung der Lamellen durch gegenseitige Berührung bei der seitlichen Fahrbewegung vermieden wird, ist unterhalb des Zählscheiben-Leerlaufgetriebes 5 ein Schieber 21 in Richtung der seitlichen Fahrbewegung der Lamellenwagen beweglich geführt und durch zwei Federn 22 mit einer Kehlkontur gegen Verdickungen 23 einer als Kugelkette ausgebildeten Zugschnur 6 belastet. In diesen Schieber 21 greift seitlich ein Hebel 24 ein, der um eine zur Schieberbewegung querverlaufende, lotrechte Achse beweglich gelagert ist und mit seinem freien Ende über Keilflächen 25 auf einen weiteren Hebel 26 einwirkt, der senkrecht zur Schieberbewegung etwa vertikal beweglich geführt ist. Dieser Hebel 26 trägt eine Sperrnase 27, die in eine Ausnehmung 28 am Umfang einer Zählscheibe 29 des zweiten, der Nutwelle zugeordneten Zählscheiben-Leerlaufgetriebes eingreift und in Eingriffsrichtung durch eine Feder 30 am Hebel 26 belastet wird, so daß eine Bewegung des Schiebers 21 in Richtung der Wirkung seiner Feder 22 über den Hebel 24 eine Aufwärtsbewegung des Hebels 26 gegen die Wirkung der Feder 30 bewirkt, um den Sperrzahn 27 aus der Ausnehmung 28 herauszuheben. Zur Erreichung dieser Bewegung sind auf der Zugschnur 6 diejenigen Verdickungen 23, die bei geschlossenem Behang im Bereich des Schiebers 21 liegen würden, entfernt, so daß der Schieber 21 bei geschlossenem Behang infolge der Wirkung seiner Feder 22 eine lineare Bewegung in Richtung gegen die Zugschnur ausführt und dadurch über die Hebel 24 und 26 den Sperrzahn 27 in der Zählscheibe 29 außer Eingriff bringt, so daß dieses Zählscheibengetriebe nunmehr sechs Leerlaufumdrehungen ausführen kann. Dadurch wird erreicht, daß der volle Schwenkwinkel von 180 Grad, gleich sechs Leerlaufumdrehungen der beiden Zählscheiben-Leerlaufgetriebe 5 und 12, nur bei geschlossener Jalousie möglich ist und das Zählscheiben-Leerlaufgetriebe 12 in allen Zwischenstellungen lediglich vier Leerlaufumdrehungen ausführen kann, die einem Öffnungswinkel von weniger als 180° entsprechen.In order to limit the turning movement of the slats in intermediate positions to a swivel angle of less than 180 degrees, which prevents damage or jamming of the slats by mutual contact during the lateral travel movement, a slide 21 in the direction of the lateral travel movement of the slat carriage is below the counting disk idle gear 5 movably guided and loaded by two springs 22 with a throat contour against thickening 23 of a pull cord 6 designed as a ball chain. In these Slider 21 laterally engages a lever 24 which is movably mounted about a perpendicular axis transverse to the slider movement and acts with its free end via wedge surfaces 25 on a further lever 26 which is guided approximately vertically movably perpendicular to the slider movement. This lever 26 carries a locking lug 27 which engages in a recess 28 on the circumference of a counting disk 29 of the second counting disk idle gear associated with the spline shaft and is loaded in the direction of engagement by a spring 30 on the lever 26, so that a movement of the slide 21 in the direction the action of its spring 22 on the lever 24 causes an upward movement of the lever 26 against the action of the spring 30 to lift the ratchet tooth 27 out of the recess 28. To achieve this movement, those thickenings 23 which would lie in the area of the slider 21 when the curtain is closed are removed on the pull cord 6, so that the slider 21 executes a linear movement towards the pull cord when the curtain is closed due to the action of its spring 22 and thereby disengages the locking tooth 27 in the counting disk 29 via the levers 24 and 26, so that this counting disk transmission can now carry out six idling revolutions. This ensures that the full swivel angle of 180 degrees, equal to six idle revolutions of the two counting disc idling gears 5 and 12, is only possible with the blind closed and the counting disc idling gear 12 can only carry out four idling revolutions in all intermediate positions, which have an opening angle of less correspond to 180 °.

Die Wirkungsweise des Getriebes wird, ausgehend von der zeichnerischen Darstellung, wie folgt beschrieben. Bei Rechtsdrehung des Antriebsorgans 1 wird dessen Drehbewegung über den Außenkranz 4 des Planetengetriebes 2,3,4 auf das Antriebszahnrad 10 der Nutwelle 11 übertragen, da das Kegelrad 7 durch den Sperrzahn 18 des Schaltsegments 17 festgehalten wird. Nach sechs Umdrehungen blockieren die Anschlagsegmente der Zählscheiben-Leerlaufgetriebe 5 und 12, so daß die Feder 14 aufgebogen und somit die Rutschkupplung 13 geöffnet wird. Gleichzeitig blockieren die Anschlagelemente des Zählscheiben-Leerlaufgetriebes 5, so daß durch die Axialkurve 15 die Scheibe 16 in axialer Richtung gegen die Wirkung der Feder 20 verschoben wird und diese Scheibe die Schaltsegmente 17 und 35 ebenfalls axial verstellt, so daß der Sperrzahn 18 das Kegelrad 7 freigibt und der Schalthebel 36 in eine Haltestellung für das Öffnungselement 32 der Rutschkupplung 13 gelangt. Da das Antriebsorgan 1 nunmehr über die Scheibe 16 drehfest mit dem Außenkranz 4 verbunden ist, werden die Planetenräder (Umlaufräder) 3 außen und innen in gleicher Drehrichtung beaufschlagt. Es ändert sich somit die Drehrichtung des Planetengetriebes und somit die Drehrichtung des Zahnrades 10 für den Antrieb der Nutwelle. Nach einer Umdrehung öffnet das Schaltsegment 36 die Rutschkupplung 13, so daß nur noch das Kegelrad 7 gedreht wird, während das Antriebszahnrad 10 für die Wendung der Lamellen leer mitläuft. Bei einer Drehrichtungsumkehr des Antriebsorgans 1 wird die Scheibe 16 unter der Wirkung der Feder 20 gegen eine Scheibe 38 in die Ausgangsstellung zurückgeschoben, wodurch das Schaltsegment 17 freigegeben und durch die Feder 34 mit dem Sperrzahn 18 in den Bereich der Ausnehmung 19 des Kegelrades 7 geschoben wird und dieses blockiert. Die Scheibe 38 ist fest mit dem Außenkranz 4 verbunden und dient nur zur Abstützung der Feder 20. Gleichzeitig wird über das Schaltsegment 35 das Schaltsegment 36 aus dem Bereich der Rutschkupplung 13 geschwenkt, wodurch das Kegelrad 7 erneut blockiert und das treibende Element der Rutschkupplung 13 freigegeben wird, so daß letztere durch die Wirkung der Feder 20 wieder geschlossen wird. Da die letzte Zählscheibe fest mit dem Gehäuse verbunden ist, kann die Nutwelle 11 nur insgesamt sechs Umdrehungen ausführen, selbst wenn vorher eine Rückwärtsdrehung bzw. eine Drehrichtungsänderung am Antriebsorgan 1 erfolgt ist. Befindet sich das Kegelrad 8 nicht in der Endstellung, sondern in einer Zwischenstellung, in der Verdickungen 23 auf der Zugschnur 6 den Schieber 21 gegen die Wirkung seiner Feder 22 nach hinten drücken, rastet der Sperrzahn 27 des Hebels 26 in eine Ausnehmung 28 am Umfang der Zählscheibe 29 ein, so daß nur vier Leerlaufumdrehungen des Zählscheiben-Leerlaufgetriebes 12 möglich sind, durch die lediglich ein Schwenkwinkel von weniger als 180° ausgeführt werden kann. Erst wenn der Schieber 21 in der geschlossenen Stellung der Jalousie eine Linearbewegung unter der Wirkung seiner Feder 22 ausführen konnte, weil sich keine Verdickungen 23 an seine Kehlkontur anlegten, erfolgt über die Hebel 24 und 26 eine Freigabe der Zählscheibe 29 des Zählscheiben-Leerlaufgetriebes 12, so daß dieses sechs volle Leerumdrehungen ausführen kann, die eine Schwenkung der Lamellen um 180° erlauben, so daß die Lamellen in einer Ebene ausgerichtet sind.The mode of operation of the transmission is described as follows, starting from the drawing. When the drive member 1 rotates to the right, its rotational movement is transmitted via the outer ring 4 of the planetary gear 2, 3, 4 to the drive gear 10 of the spline shaft 11, since the bevel gear 7 is held by the ratchet tooth 18 of the switching segment 17 becomes. After six rotations, the stop segments of the counting disc idle gears 5 and 12 block, so that the spring 14 is bent and the slip clutch 13 is opened. At the same time block the stop elements of the counter idle gear 5, so that the disc 16 is displaced in the axial direction against the action of the spring 20 by the axial curve 15 and this disc also adjusts the switching segments 17 and 35 axially, so that the ratchet 18 the bevel gear 7th releases and the shift lever 36 comes into a stop position for the opening element 32 of the slip clutch 13. Since the drive member 1 is now connected in a rotationally fixed manner to the outer ring 4 via the disk 16, the planet gears (planetary gears) 3 are acted upon on the outside and inside in the same direction of rotation. It changes the direction of rotation of the planetary gear and thus the direction of rotation of the gear 10 for driving the spline. After one revolution, the switching segment 36 opens the slip clutch 13, so that only the bevel gear 7 is rotated while the drive gear 10 is idling for the rotation of the disks. When the direction of rotation of the drive member 1 is reversed, the disk 16 is pushed back against the disk 38 into the starting position under the action of the spring 20, as a result of which the switching segment 17 is released and pushed by the spring 34 with the ratchet tooth 18 into the region of the recess 19 of the bevel gear 7 and blocked it. The disk 38 is firmly connected to the outer ring 4 and serves only to support the spring 20. At the same time, the switching segment 36 is pivoted out of the area of the slip clutch 13 via the shift segment 35, as a result of which the bevel gear 7 is blocked again and the driving element of the slip clutch 13 is released is, so that the latter is closed again by the action of the spring 20. Since the last counting disc is firmly connected to the housing, the grooved shaft 11 can only make a total of six revolutions, even if a reverse rotation or a change in the direction of rotation has occurred on the drive element 1 beforehand. Located the bevel gear 8 not in the end position, but in an intermediate position, in the thickenings 23 on the pull cord 6 push the slider 21 back against the action of its spring 22, the ratchet tooth 27 of the lever 26 engages in a recess 28 on the circumference of the counting disk 29 a, so that only four idle revolutions of the counting disk idle gear 12 are possible, through which only a pivot angle of less than 180 ° can be carried out. Only when the slide 21 in the closed position of the blind was able to carry out a linear movement under the action of its spring 22 because no thickenings 23 lay against its throat contour, are the counters 29 of the counter idler gear 12 released via the levers 24 and 26, so that it can perform six full idle rotations, which allow the slats to pivot through 180 °, so that the slats are aligned in one plane.

BEZUGSZEICHENLISTE:REFERENCE SIGN LIST:

Figure imgb0001
Figure imgb0001

Claims (7)

  1. A vertical blind comprising vanes suspended from a vane carriage in each case so as to pivot about a vertical axis and with a drive element reversible in the direction of movement for driving gearing, which is connectable via coupling members to a continuous pull cord for laterally displacing the vane carriage guided in a support rail and to a slotted shaft, which penetrates swivel gearing in the vane carriage for rotating the vanes, characterised in that a rotatably displaceable drive element (1) is connected to the central gear (2) of planetary gearing, whose outer gear rim (4) is connected by first counter disc idling gearing (5), whose idling is adjusted to an angle of rotation of the vanes through 180°, to a drive gear (7) for the pull cord (6) and via a back gear (10) and a slip clutch (13) to the slotted shaft (11), second counter disc idling gearing (12) for an angle of rotation of the vanes also corresponding to 180° being associated with the slip clutch (13) and opening the slip clutch (13) at the end of the gearing idling path and the first counter disc idling gearing (5) at the end of its idling path disengages, against spring action, a displaceably guided switching segment (17) blocking the rotation of the drive gear (7) for the pull cord (6).
  2. A vertical blind according to claim 1, characterised in that the planetary gearing (2, 3, 4) and the counter disc idling gearing (5, 12) are arranged together with the transmission elements in a housing adapted to the cross sectional profile of the support rail (31).
  3. A vertical blind according to claim 2, characterised in that a slip clutch (13) comprising two elements coupled by a spring (14) in the direction of closure is provided between the slotted shaft (11) and the counter disc idling gearing associated therewith, and an opening element (32) of the slip clutch comprises apertures for the engagement of a switching segment (36), which is arranged to be displaceable between end positions, in one of the end positions of the switching segment (36).
  4. A vertical blind according to claim 3, characterised in that the displaceably arranged switching segment (36) is mounted so as to pivot about an axis in order to disengage the coupling function and can be actuated by the axial displacement of a switching segment (35), which cooperates with an axial cam (15) on an end disc of the counter disc idling gearing (5) associated with the pull cord drive and cooperates with an axially displaceable disc.
  5. A vertical blind according to claims 2 to 4, characterised in that means are provided which block the rotation of the slotted shaft (11) for a rotational movement of the vanes through an angle (approximately 30 degrees) either side of the extended certain plane outside the closed certain position or allow for a return rotation into this region during a departure from the closed certain position.
  6. A vertical blind according to claim 5, characterised in that the means for limiting the angle of rotation comprise a notch blocking the counter disc (29), a locking tooth (27) or the like.
  7. A vertical blind according to claim 6, characterised in that a pull cord (6) acts with enlarged sections (23) attached to the pull cord at intervals against a spring-loaded pushrod (21) acting via the transmission elements on the notch, locking tooth (27) or the like, and in a region which acts upon the pushrod when the blind is closed comprises no enlarged sections (23), so that in the closed position of the blind the pushrod (21) releases the locking tooth (27) and the latter releases the counter disc (29) of the counter disc idling gearing (12) associated with the slotted shaft in order to allow for a 180°-rotation of the vanes in this position.
EP92115144A 1991-09-21 1992-09-04 Vertical Venetian blind with one-organ actuation Expired - Lifetime EP0536537B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131478A DE4131478A1 (en) 1991-09-21 1991-09-21 VERTICAL BLINDS WITH ONE-ORGAN DRIVE
DE4131478 1992-09-21

Publications (2)

Publication Number Publication Date
EP0536537A1 EP0536537A1 (en) 1993-04-14
EP0536537B1 true EP0536537B1 (en) 1994-06-01

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Application Number Title Priority Date Filing Date
EP92115144A Expired - Lifetime EP0536537B1 (en) 1991-09-21 1992-09-04 Vertical Venetian blind with one-organ actuation

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US (1) US5266068A (en)
EP (1) EP0536537B1 (en)
AT (1) ATE106498T1 (en)
CA (1) CA2078398C (en)
DE (2) DE4131478A1 (en)
DK (1) DK0536537T3 (en)
ES (1) ES2054517T3 (en)

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US5495153A (en) * 1993-06-11 1996-02-27 Harmonic Design, Inc. Head rail-mounted mini-blind actuator for vertical blinds and pleated shades
US5698958A (en) * 1993-06-11 1997-12-16 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
US6060852A (en) * 1993-06-11 2000-05-09 Harmonic Design, Inc. Head rail-mounted actuator for window covering
US5517094A (en) * 1993-07-20 1996-05-14 Harmonic Design, Inc. Head rail-mounted mini-blind actuator
US5718652A (en) * 1994-10-12 1998-02-17 Coronel; Paul Kay Coronel effect positively infinitely variable rotary motion transmission
JPH09221971A (en) * 1996-02-19 1997-08-26 Makita Corp Driving device of vertical blind
US5793174A (en) * 1996-09-06 1998-08-11 Hunter Douglas Inc. Electrically powered window covering assembly
IL124778A0 (en) * 1997-06-24 1999-01-26 Holis Metal Ind Ltd Tilting mechanism for a venetian blind
ES2265870T3 (en) * 1999-07-14 2007-03-01 Hunter Douglas Industries B.V. DRIVING MECHANISM AND HEADER RAIL FOR PERSIANA.
US7128126B2 (en) * 2003-03-04 2006-10-31 Hunter Douglas Inc. Control system for architectural coverings with reversible drive and single operating element
DE202007000605U1 (en) * 2006-05-16 2007-07-12 Vkr Holding A/S Drive unit for vertical louvre shutter has a common drive for both tilt and sliding adjustment and with an additional differential for the first drive unit
DE102009049160B4 (en) * 2009-10-12 2016-06-16 Beilharz Gmbh & Co. Kg Device for securing a traffic safety device in the form of a baton body or the like on a base plate with the aid of an adapter
US11459822B2 (en) * 2019-02-12 2022-10-04 Hunter Douglas Inc. Tilt-control assembly for use with an operating mechanism in an architectural-structure covering

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IT967195B (en) * 1972-09-06 1974-02-28 Regolux S R L CONTROL DEVICE FOR VENICE OR CURTAINS IN GENERAL
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US4914360A (en) * 1989-03-10 1990-04-03 Hsieh Chi Sheng Venetian blind controller

Also Published As

Publication number Publication date
ATE106498T1 (en) 1994-06-15
ES2054517T3 (en) 1994-08-01
DE59200203D1 (en) 1994-07-07
DE4131478A1 (en) 1993-03-25
EP0536537A1 (en) 1993-04-14
US5266068A (en) 1993-11-30
DK0536537T3 (en) 1994-10-10
CA2078398A1 (en) 1993-03-22
CA2078398C (en) 1997-01-07

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