EP0196456B1 - Carriage for a slatted shutter - Google Patents

Carriage for a slatted shutter Download PDF

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Publication number
EP0196456B1
EP0196456B1 EP86102498A EP86102498A EP0196456B1 EP 0196456 B1 EP0196456 B1 EP 0196456B1 EP 86102498 A EP86102498 A EP 86102498A EP 86102498 A EP86102498 A EP 86102498A EP 0196456 B1 EP0196456 B1 EP 0196456B1
Authority
EP
European Patent Office
Prior art keywords
bearing pin
guide carriage
bearing sleeve
bearing
louvre
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
EP86102498A
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German (de)
French (fr)
Other versions
EP0196456A1 (en
Inventor
Pierre Walther
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.)
Syba Handels- und Vertriebs AG
Original Assignee
Syba Handels- und Vertriebs AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Syba Handels- und Vertriebs AG filed Critical Syba Handels- und Vertriebs AG
Priority to AT86102498T priority Critical patent/ATE46560T1/en
Publication of EP0196456A1 publication Critical patent/EP0196456A1/en
Application granted granted Critical
Publication of EP0196456B1 publication Critical patent/EP0196456B1/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
    • E06B9/24—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
    • E06B9/362—Travellers; Lamellae suspension stems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S160/00—Flexible or portable closure, partition, or panel
    • Y10S160/90—Vertical type venetian blind

Definitions

  • the invention relates to a carriage for a slatted blind, with a housing with end walls transverse to the direction of travel, with laterally arranged on the housing sliding or running elements for moving the carriage in a mounting rail, with a bearing sleeve rotatably mounted in a housing-fixed bushing with a pinion section, with a frictionally supported in the bearing sleeve bearing pin, at the lower end of which a plate holder is arranged, which holds a vertical plate, with a rotatably mounted in openings in the end walls, which meshes with the pinion section of the bearing sleeve and an internal profile for receiving a correspondingly profiled turning shaft, with detent springs the bearing sleeve or the bearing pin, which protrude with its engaging ends into a circumferential groove of the bearing pin or the bearing sleeve, the bearing pin being firmly connected to the disk holder.
  • Such guide carriages are known from US-A-4,350,197 in which the bearing journals are non-releasably locked in the bearing sleeve.
  • a groove is formed at the lower end of the journal, and the lamella holder has a corresponding bead for releasable connection to the journal.
  • the disadvantage here is the relatively large overall length of the groove / bead connection, which leads to undesired incidence of light even when the blind is closed.
  • the lamellae When they are removed, the lamellae must be released together with their lamella holder from the grooves of the bearing journals; the slats cannot be detached from the guide carriage by tensile forces, which increases the risk of accidents if the slats get caught.
  • the object of the invention is to further develop a guide carriage of the type mentioned at the outset in such a way that the slats can be coupled and removed in a simple manner by axial tensile and compressive forces.
  • the advantages of the invention lie in particular in the simple handling of the slatted blinds equipped with the guide carriages according to the invention.
  • the possibility of removing the lamellae from the guide carriage is realized in a particularly simple and advantageous manner in that the bearing journal engages in a latching connection in the bearing sleeve, which can be released by axial tensile forces and can be locked again by axial compressive forces.
  • the fact that the slats can be released from the guide carriage by tensile forces with an axial component significantly reduces the risk of accidents because objects or people can no longer accidentally get caught on the slats and fall. Characterized in that no horizontal support edge, but only slanted outwardly sliding surfaces are present between the locking springs and the circumferential groove of the bearing pin, a predetermined axial pull on the bearing pin is sufficient to release the locking connection.
  • the detent springs are preferably arranged at the upper end of the bearing sleeve above the pinion section.
  • the bearing pin which is formed vertically on the horizontal plate holder, projects through the bearing sleeve and has the corresponding chamfered circumferential groove at the point corresponding to the detent springs.
  • the detent springs can be attached to any position on the bearing sleeve.
  • the free ends of the detent springs and the circumferential groove of the bearing pin have an adapted shape and are dimensioned such that they bear against one another with a predetermined radial pressure. In this way, the bearing journal and bearing sleeves form a slip clutch with a predetermined frictional torque, which prevents the disks from rotating without resistance in the rotary bearing formed from the bearing sleeve and bearing journal.
  • the detent springs can also be attached at any other point on the bearing sleeve.
  • Figures 1 and 2 show cross sections through a first and second embodiment of the carriage.
  • the guide carriage consists of an essentially rectangular housing 4, which has stub axles 5 directed outwards on two opposite sides, on which rollers 6 are mounted, which run on running surfaces 3 of a mounting rail 2 and enable the guide carriage 1 to be moved along the mounting rail 2 with little friction.
  • the housing 4 of the guide carriage 1 has a vertically aligned housing bushing 8 centrally between the rollers 6, which is directed perpendicular to the roller axis and - in the exemplary embodiment shown - a locking recess mung 9 contains.
  • a bearing sleeve 10 is rotatably mounted in the housing bushing 8 and has at its lower end locking lugs 12 which protrude into the locking recess 9 of the housing bushing 8 and lock the bearing bushing 10 in the housing bushing 8 in a non-releasable manner.
  • a bearing section for rotatable mounting in the housing bushing 8 adjoins the locking lugs 12.
  • the bearing section is followed by a pinion section 14, on which the bearing sleeve 10 carries on its outer circumference a pinion with obliquely upward toothings.
  • the pinion section 14 merges into detent springs 16 which have radial thickenings 16a.
  • a bearing pin 18 is rotatably mounted, which is fixedly connected at its lower end to a horizontal plate holder 24 and z. B. can be integrally formed with this.
  • the bearing pin 18 has at the height of the detent springs 16 a circumferential groove 20 which has inclined chamfers or side walls, in which the thickened portions 16a of the detent springs preferably engage in a form-fitting manner.
  • the detent springs 16 and the circumferential groove 20 are dimensioned such that, when the detent connection has been made, a predetermined radial pressure acts, which generates a desired friction between the bearing sleeve and the bearing journal, so that the bearing journal 18 is carried along by the bearing sleeve 10 until one on a lower annular bead 18b of the Bearing pin 18 molded stop 17 starts against a counter-stop 8a fixed to the housing. If the rotational movement of the pinion and the bearing sleeve 10 is then continued, the bearing sleeve overcomes the static frictional moment of the latching connection 16, 20 and then continues to rotate freely on the bearing journal 18 which is at the stop.
  • the latching springs 16 of the bearing sleeve 10 and the circumferential groove 20 of the bearing journal 18 are formed
  • the latching connection thus acts like a friction clutch, which freewheels when a predetermined freewheeling torque is exceeded.
  • the formation of the friction clutch integral with the latching connection is a particularly advantageous feature of the invention.
  • the housing walls supporting the stub axles 5 are connected to one another by two end walls 7a, 7b which are spaced apart from one another. Between the end walls 7a, 7b, a worm 26 is rotatably mounted, which has a worm thread 28 which meshes with the pinion section 14 of the bearing sleeve 10.
  • the worm 26 has an inner profile 30, which corresponds to the profile of a turning shaft (not shown), which runs through all guide carriages and rotates the worms 26 when they rotate, which, via their worm thread, the pinion section 14 and the latching connection 16, 20 the position of change vertical slats as required.
  • the housing bushing 8 is integrally formed on the housing 4 in a central and vertical orientation and has a latching recess 9 and an inner diameter which widens slightly conically downwards.
  • the bearing sleeve 10 is engaged, z. B. an approach of the bearing sleeve 10 engages under the locking recess 9 and the pinion section 14 engages over the housing bushing 8 at its upper end.
  • the bearing bush 10 has at its lower end detent springs 16 with inward thickenings 16a which engage in a corresponding circumferential groove 20 of a bearing pin 18 which is integrally formed on the horizontal plate holder 24.
  • the circumferential groove 20 of the bearing pin 18 has oblique side surfaces 21 which widen the circumferential groove 20 with increasing distance from the pin axis 18a. Therefore, if a sufficient axial force acts down on the bearing pin 18, the detent springs 16 are pressed outwards by the side surfaces 21, as a result of which the bearing pin 18 is released from the detent connection and can be pulled axially out of the bearing sleeve 10.
  • the bearing pin 18 is inserted into the bearing sleeve 10 from below until the rounded tip 23 of the bearing pin runs against the detent springs 16 and presses them outward.
  • the catch springs 16 then fall into the circumferential groove 20 of the bearing pin 18, as a result of which the catch connection is established.
  • an interlocking knurling 40, 42 is provided between the bearing pin 18 and the bearing sleeve 10 in order to allow the rotation of the bearing pin 18 to start only from a predetermined minimum torque. In this way, undesired, accidental twisting of the vertical slats in the carriage can be prevented.
  • knurling 40 with axial elevations and depressions is attached to the circumference of the journal 18.
  • resilient tabs, for. B. on the locking lugs 12 provided, which carry radially inwardly directed, engaging in the knurling 40 knurled cams 42.
  • FIG. 3 shows a representation corresponding to FIG. 1, in which the knurling 40 is attached to the upward-facing surface of an annular bead 18b which is formed on the bearing journal 18 at a predetermined distance above the lamella holder 24 and also carries the stop 17.
  • corresponding knurled cams 42 are formed on the lower end face of the bearing sleeve 10, which cooperate with the knurling 40 of the bearing pin 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Air-Flow Control Members (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Sliding-Contact Bearings (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Blinds (AREA)

Abstract

A guide carriage for a louvre blind has a bearing sleeve which is provided in a bushing forming part of a housing and in which a bearing pin is frictionally engaged, the bearing pin being provided at its lower end with a louvre holder for a vertical louvre. To provide a short distance between the louvre holder and the guide carriage, and simultaneously to provide simple removability of the louvre, the bearing pin is fixedly connected to the louvre holder, located in the bearing sleeve and may be removed from the sleeve simply by applying oppositely directed forces to the housing and the bearing pin along the axis of the pin.

Description

Die Erfindung betrifft einen Führungswagen für eine Lamellenjalousie, mit einem Gehäuse mit Stirnwänden quer zur Laufrichtung, mit seitlich am gehäuse angeordneten Gleit- oder Laufelementen zum Verschieben des Wagens in einer Tragschiene, mit einer in einer gehäusefesten Buchse drehbar gelagerten Lagerhülse mit einem Ritzelabschnitt, mit einem reibschlüssig in der Lagerhülse gelagerten Lagerzapfen, an dessen unterem Ende ein Lamellenhalter angeordnet ist, der eine Vertikallamelle hält, mit einer in Öffnungen der Stirnwände drehbar gelagerten, mit dem Ritzelabschnitt der Lagerhülse kämmenden Schnecke und einer Innenprofilierung zur Aufnahme einer entsprechend profilierten Wendewelle, mit Rastfedern an der Lagerhülse bzw. dem Lagerzapfen, die mit ihren Eingriffsenden in eine Umfangsnut des Lagerzapfens bzw. der Lagerhülse hineinragen, wobei der Lagerzapfen fest mit dem Lamellenhalter verbunden ist.The invention relates to a carriage for a slatted blind, with a housing with end walls transverse to the direction of travel, with laterally arranged on the housing sliding or running elements for moving the carriage in a mounting rail, with a bearing sleeve rotatably mounted in a housing-fixed bushing with a pinion section, with a frictionally supported in the bearing sleeve bearing pin, at the lower end of which a plate holder is arranged, which holds a vertical plate, with a rotatably mounted in openings in the end walls, which meshes with the pinion section of the bearing sleeve and an internal profile for receiving a correspondingly profiled turning shaft, with detent springs the bearing sleeve or the bearing pin, which protrude with its engaging ends into a circumferential groove of the bearing pin or the bearing sleeve, the bearing pin being firmly connected to the disk holder.

Aus der US-A-4 350 197 sind derartige Führungswagen bekannt, bei denen die Lagerzapfen unlösbar in der Lagerhülse verrastet sind. Um - z. B. für Reinigungszwecke - die Lamellen gleichwohl abnehmen zu können, ist am unteren Ende des Lagerzapfens eine Nut angeformt, und der Lamellenhalter besitzt einen entsprechenden Wulst zum lösbaren Verbinden mit dem Lagerzapfen. Nachteilig ist dabei die relativ große Baulänge der Nut/Wulst-Verbindung, die zu unerwünschtem Lichteinfall auch bei geschlossener Jalousie führt. Die Lamellen müssen bei ihrer Abnahme zusammen mit ihrem Lamellenhalter seitwärts aus den Nuten der Lagerzapfen herausgelöst werden ; die Lamellen lassen sich durch Zugkräfte nicht vom Führungswagen lösen, wodurch die Unfallgefahr beim Hängenbleiben an den Lamellen erhöht ist.Such guide carriages are known from US-A-4,350,197 in which the bearing journals are non-releasably locked in the bearing sleeve. To - e.g. B. for cleaning purposes - to be able to remove the lamellae, a groove is formed at the lower end of the journal, and the lamella holder has a corresponding bead for releasable connection to the journal. The disadvantage here is the relatively large overall length of the groove / bead connection, which leads to undesired incidence of light even when the blind is closed. When they are removed, the lamellae must be released together with their lamella holder from the grooves of the bearing journals; the slats cannot be detached from the guide carriage by tensile forces, which increases the risk of accidents if the slats get caught.

Aufgabe der Erfindung ist es demgegenüber, einen Führungswagen der eingangs genannten Art derart weiterzubilden, daß die Lamellen in einfacher Weise durch axiale Zug- und Druckkräfte ankoppelbar und abnehmbar sind.In contrast, the object of the invention is to further develop a guide carriage of the type mentioned at the outset in such a way that the slats can be coupled and removed in a simple manner by axial tensile and compressive forces.

Diese Aufgabe wird bei den Führungswagen der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß sich die Umfangsnut mittels schrager Seitenwände nach außen hin aufweitet, und daß die Eingriffsenden der Rastfedern gegen die schrägen Seitenwände anliegen und bei auf den Lamellenhalter wirkenden Zugkräften von den schrägen Seitenwänden radial aus der Umfangsnut herauslaufen und den Lagerzapfen axial freigeben.This object is achieved according to the invention in the guide carriages of the type mentioned at the outset in that the circumferential groove widens outwards by means of oblique side walls, and in that the engaging ends of the detent springs bear against the oblique side walls and radially from the oblique side walls when the tensile forces acting on the slat holder are present run out of the circumferential groove and axially release the bearing journal.

Die Vorteile der Erfindung liegen insbesondere in der einfachen Handhabbarkeit der mit den erfindungsgemäßen Führungswagen ausgestatteten Lamellenjalousien. Die Möglichkeit, die Lamellen von dem Führungswagen abzunehmen, ist besonders einfach und vorteilhaft dadurch verwirklicht, daß der Lagerzapfen in der Lagerhülse eine Rastverbindung eingeht, die durch axiale Zugkräfte lösbar ist und durch axiale Druckkräfte wieder verrastet werden kann. Dadurch, daß sich die Lamellen durch Zugkräfte mit axialer Komponente aus dem Führungswagen lösen lassen, wird die Unfallgefahr wesentlich verringert, weil Gegenstände oder Personen nicht mehr unbeabsichtigterweise an den Lamellen hängen bleiben können und stürzen. Dadurch, daß zwischen Rastfedern und Umfangsnut des Lagerzapfens keine horizontale Stützkante, sondern lediglich schräg nach außen verlaufende Gleitflächen vorhanden sind, reicht ein vorgegebener axialer Zug am Lagerzapfen aus, um die Rastverbindung zu lösen.The advantages of the invention lie in particular in the simple handling of the slatted blinds equipped with the guide carriages according to the invention. The possibility of removing the lamellae from the guide carriage is realized in a particularly simple and advantageous manner in that the bearing journal engages in a latching connection in the bearing sleeve, which can be released by axial tensile forces and can be locked again by axial compressive forces. The fact that the slats can be released from the guide carriage by tensile forces with an axial component significantly reduces the risk of accidents because objects or people can no longer accidentally get caught on the slats and fall. Characterized in that no horizontal support edge, but only slanted outwardly sliding surfaces are present between the locking springs and the circumferential groove of the bearing pin, a predetermined axial pull on the bearing pin is sufficient to release the locking connection.

Bevorzugt sind die Rastfedern am oberen Ende der Lagerhülse über dem Ritzelabschnitt angeordnet. Der Lagerzapfen, welcher am horizontalen Lamellenhalter vertikal angeformt ist, ragt durch die Lagerhülse hindurch und besitzt an der den Rastfedern entsprechenden Stelle die entsprechende angefaste Umfangsnut. Alternativ lassen sich die Rastfedern jedoch an jeder beliebigen Stelle der Lagerhülse anbringen. Die freien Enden der Rastfedern und die Umfangsnut des Lagerzapfens besitzen eine einander angepaßte Form und sind so bemessen, daß sie mit vorgegebenem Radialdruck gegeneinander anliegen. Lagerzapfen und Lagerhülsen bilden auf diese Weise eine Rutschkupplung mit vorgegebenem Reibungsmoment, welches verhindert, daß sich die Lamellen ohne Widerstand in dem aus Lagerhülse und Lagerzapfen gebildeten Drehlager drehen können.The detent springs are preferably arranged at the upper end of the bearing sleeve above the pinion section. The bearing pin, which is formed vertically on the horizontal plate holder, projects through the bearing sleeve and has the corresponding chamfered circumferential groove at the point corresponding to the detent springs. Alternatively, the detent springs can be attached to any position on the bearing sleeve. The free ends of the detent springs and the circumferential groove of the bearing pin have an adapted shape and are dimensioned such that they bear against one another with a predetermined radial pressure. In this way, the bearing journal and bearing sleeves form a slip clutch with a predetermined frictional torque, which prevents the disks from rotating without resistance in the rotary bearing formed from the bearing sleeve and bearing journal.

Alternativ lassen sich die Rastfedern auch an jeder anderen Stelle der Lagerhülse anbringen.Alternatively, the detent springs can also be attached at any other point on the bearing sleeve.

Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale der Unteransprüche gekennzeichnet.Advantageous developments of the invention are characterized by the features of the subclaims.

Im folgenden werden drei Ausführungsformen der Erfindung anhand der Zeichnungen näher erläutert. Es zeigen :

  • Fig. 1 einen Querschnitt durch einen Führungswagen einer ersten Ausführungsform der Erfindung ;
  • Fig. 2 einen Querschnitt durch eine zweite Ausführungsform des Führungswagens ; und
  • Fig. 3 eine der Fig. 1 entsprechende abgewandelte Ausführungsform des Führungswagens.
In the following three embodiments of the invention are explained in more detail with reference to the drawings. Show it :
  • 1 shows a cross section through a guide carriage of a first embodiment of the invention.
  • 2 shows a cross section through a second embodiment of the guide carriage. and
  • 3 shows a modified embodiment of the guide carriage corresponding to FIG. 1.

Die Figuren 1 und 2 zeigen Querschnitte durch eine erste und zweite Ausführungsform des Führungswagens. Der Führungswagen besteht aus einem im wesentlichen rechteckförmigen Gehäuse 4, welches an zwei gegenüberliegenden Seiten auswärts gerichtete Stummelachsen 5 besitzt, an denen Laufrollen 6 gelagert sind, die auf Laufflächen 3 einer Tragschiene 2 laufen und eine reibungsarme Verschiebung des Führungswagens 1 längs der Tragschiene 2 ermöglichen.Figures 1 and 2 show cross sections through a first and second embodiment of the carriage. The guide carriage consists of an essentially rectangular housing 4, which has stub axles 5 directed outwards on two opposite sides, on which rollers 6 are mounted, which run on running surfaces 3 of a mounting rail 2 and enable the guide carriage 1 to be moved along the mounting rail 2 with little friction.

Das Gehäuse 4 des Führungswagens 1 besitzt zentral zwischen den Laufrollen 6 eine vertikal ausgerichtete Gehäusebuchse 8 die senkrecht zur Laufrollenachse gerichtet ist und - im dargestellten Ausführungsbeispiel - eine Rastausnehmung 9 enthält. In der Gehäusebuchse 8 ist eine Lagerhülse 10 drehbar gelagert, die an ihrem unteren Ende Rastansätze 12 besitzt, welche in die Rastausnehmung 9 der Gehäusebuchse 8 hineinragen und die Lagerbuchse 10 in der Gehäusebuchse 8 unlösbar verrasten. An die Rastansätze 12 schließt sich ein Lagerabschnitt zur drehbaren Lagerung in der Gehäusebuchse 8 an. An den Lagerabschnitt schliesst sich ein Ritzelabschnitt 14 an, an dem die Lagerhülse 10 an ihrem Aussenumfang ein Ritzel mit schräg aufwärts verlaufenden Zahnungen trägt. Der Ritzelabschnitt 14 geht über in Rastfedern 16, die radiale Verdickungen 16a aufweisen.The housing 4 of the guide carriage 1 has a vertically aligned housing bushing 8 centrally between the rollers 6, which is directed perpendicular to the roller axis and - in the exemplary embodiment shown - a locking recess mung 9 contains. A bearing sleeve 10 is rotatably mounted in the housing bushing 8 and has at its lower end locking lugs 12 which protrude into the locking recess 9 of the housing bushing 8 and lock the bearing bushing 10 in the housing bushing 8 in a non-releasable manner. A bearing section for rotatable mounting in the housing bushing 8 adjoins the locking lugs 12. The bearing section is followed by a pinion section 14, on which the bearing sleeve 10 carries on its outer circumference a pinion with obliquely upward toothings. The pinion section 14 merges into detent springs 16 which have radial thickenings 16a.

In der Lagerhülse ist ein Lagerzapfen 18 drehbar gelagert, der an seinem unteren Ende fest mit einem horizontalen Lamellenhalter 24 verbunden ist und z. B. einstückig mit diesem ausgebildet sein kann. Der Lagerzapfen 18 besitzt in Höhe der Rastfedern 16 eine Umfangsnut 20, welche schräge Fasen oder Seitenwände besitzt, in welche die Verdickungen 16a der Rastfedern bevorzugt formschlüssig eingreifen. Die Rastfedern 16 und die Umfangsnut 20 sind so bemessen, dass bei hergestellter Rastverbindung ein vorgegebener Radialdruck wirkt, der eine gewünschte Reibung zwischen Lagerhülse und Lagerzapfen erzeugt, so dass der Lagerzapfen 18 von der Lagerhülse 10 mitgenommen wird, bis ein an einem unteren Ringwulst 18b des Lagerzapfens 18 angeformter Anschlag 17 gegen einen gehäusefesten Gegenanschlag 8a anläuft. Wird anschliessend die Drehbewegung des Ritzels und der Lagerhülse 10 fortgesetzt, so überwindet die Lagerhülse das Haftreibungsmoment der Rastverbindung 16, 20 und dreht dann frei weiter auf dem am Anschlag stehenden Lagerzapfen 18. Die aus Rastfedern 16 der Lagerhülse 10 und Umfangsnut 20 des Lagerzapfens 18 gebildete Rastverbindung wirkt somit wie eine Friktions-Kupplung, die bei Überschreiten eines vorgegebenen Freilauf-Drehmomentes freiläuft. Die Bildung der Friktions-Kupplung integral mit der Rastverbindung stellt ein besonders vorteilhaftes Merkmal der Erfindung dar.In the bearing sleeve, a bearing pin 18 is rotatably mounted, which is fixedly connected at its lower end to a horizontal plate holder 24 and z. B. can be integrally formed with this. The bearing pin 18 has at the height of the detent springs 16 a circumferential groove 20 which has inclined chamfers or side walls, in which the thickened portions 16a of the detent springs preferably engage in a form-fitting manner. The detent springs 16 and the circumferential groove 20 are dimensioned such that, when the detent connection has been made, a predetermined radial pressure acts, which generates a desired friction between the bearing sleeve and the bearing journal, so that the bearing journal 18 is carried along by the bearing sleeve 10 until one on a lower annular bead 18b of the Bearing pin 18 molded stop 17 starts against a counter-stop 8a fixed to the housing. If the rotational movement of the pinion and the bearing sleeve 10 is then continued, the bearing sleeve overcomes the static frictional moment of the latching connection 16, 20 and then continues to rotate freely on the bearing journal 18 which is at the stop. The latching springs 16 of the bearing sleeve 10 and the circumferential groove 20 of the bearing journal 18 are formed The latching connection thus acts like a friction clutch, which freewheels when a predetermined freewheeling torque is exceeded. The formation of the friction clutch integral with the latching connection is a particularly advantageous feature of the invention.

Die die Stummelachsen 5 tragenden Gehäusewände sind durch zwei in geringem Abstand voneinander verlaufende Stirnwände 7a, 7b miteinander verbunden. Zwischen den Stirnwänden 7a, 7b ist eine Schnecke 26 drehbar gelagert, die ein Schneckengewinde 28 aufweist, welches mit dem Ritzelabschnitt 14 der Lagerhülse 10 kämmt. Die Schnecke 26 besitzt eine Innenprofilierung 30, die dem Profil einer Wendewelle (nicht dargestellt) entspricht, welche durch alle Führungswagen hindurch verläuft und bei ihrer Drehung die Schnecken 26 verdreht, welche über ihr Schneckengewinde den Ritzelabschnitt 14 und die Rastverbindung 16, 20 die Stellung der vertikalen Lamellen in gewünschter Weise verändern. In Fig. 2 ist das Gehäuse 4 des Laufwagens innerhalb der Tragschiene 2 dargestellt, wobei die seitlichen Gleit- oder Rollenelemente 6 und die Schnecke 26 der Übersichtlichkeit halber weggelassen sind. Die Gehäusebuchse 8 ist zentral und vertikal ausgerichtet an das Gehäuse 4 angeformt und besitzt eine Rastausnehmung 9 und einen nach unten sich leicht konisch ausweitenden Innendurchmesser. In die Gehäusebuchse 8 ist die Lagerhülse 10 eingerastet, wobei z. B. ein Ansatz der Lagerhülse 10 die Rastausnehmung 9 untergreift und der Ritzelabschnitt 14 die Gehäusebuchse 8 an ihrem oberen Ende übergreift. Die Lagerbuchse 10 besitzt an ihrem unteren Ende Rastfedern 16 mit einwärts gerichteten Verdickungen 16a, die in eine entsprechende Umfangsnut 20 eines Lagerzapfens 18 eingreifen, der einstückig an den horizontalen Lamellenhalter 24 angeformt ist.The housing walls supporting the stub axles 5 are connected to one another by two end walls 7a, 7b which are spaced apart from one another. Between the end walls 7a, 7b, a worm 26 is rotatably mounted, which has a worm thread 28 which meshes with the pinion section 14 of the bearing sleeve 10. The worm 26 has an inner profile 30, which corresponds to the profile of a turning shaft (not shown), which runs through all guide carriages and rotates the worms 26 when they rotate, which, via their worm thread, the pinion section 14 and the latching connection 16, 20 the position of change vertical slats as required. 2 shows the housing 4 of the carriage within the mounting rail 2, the side sliding or roller elements 6 and the screw 26 being omitted for the sake of clarity. The housing bushing 8 is integrally formed on the housing 4 in a central and vertical orientation and has a latching recess 9 and an inner diameter which widens slightly conically downwards. In the housing bushing 8, the bearing sleeve 10 is engaged, z. B. an approach of the bearing sleeve 10 engages under the locking recess 9 and the pinion section 14 engages over the housing bushing 8 at its upper end. The bearing bush 10 has at its lower end detent springs 16 with inward thickenings 16a which engage in a corresponding circumferential groove 20 of a bearing pin 18 which is integrally formed on the horizontal plate holder 24.

Die Umfangsnut 20 des Lagerzapfens 18 besitzt schräg verlaufende Seitenflächen 21, welche die Umfangsnut 20 mit wachsendem Abstand von der Zapfenachse 18a verbreitern. Wirkt daher auf den Lagerzapfen 18 eine ausreichende axiale Kraft nach unten, so werden die Rastfedern 16 von den Seitenflächen 21 nach aussen gedrückt, wodurch der Lagerzapfen 18 aus der Rastverbindung gelöst wird und axial aus der Lagerhülse 10 herausgezogen werden kann.The circumferential groove 20 of the bearing pin 18 has oblique side surfaces 21 which widen the circumferential groove 20 with increasing distance from the pin axis 18a. Therefore, if a sufficient axial force acts down on the bearing pin 18, the detent springs 16 are pressed outwards by the side surfaces 21, as a result of which the bearing pin 18 is released from the detent connection and can be pulled axially out of the bearing sleeve 10.

Zum Einsetzen wird der Lagerzapfen 18 von unten in die Lagerhülse 10 eingeschoben, bis dann die abgerundete Spitze 23 des Lagerzapfens gegen die Rastfedern 16 anläuft und diese nach aussen drückt. Bei fortgesetzter Aufwärtsbewegung fallen dann die Rastfedern 16 in die Umfangsnut 20 des Lagerzapfens 18 ein, wodurch die Rastverbindung hergestellt ist.For insertion, the bearing pin 18 is inserted into the bearing sleeve 10 from below until the rounded tip 23 of the bearing pin runs against the detent springs 16 and presses them outward. When the upward movement continues, the catch springs 16 then fall into the circumferential groove 20 of the bearing pin 18, as a result of which the catch connection is established.

Gemäss den Fig. 1 und 3 ist zwischen dem Lagerzapfen 18 und der Lagerhülse 10 eine ineinandergreifende Rändelung 40, 42 vorgesehen, um die Rotation des Lagerzapfens 18 erst ab einem vorgegebenen Mindestdrehmoment einsetzen zu lassen. Auf diese Weise lässt sich unerwünschtes, zufälliges Verdrehen der Vertikallamellen in dem Laufwagen verhindern. Gemäss Fig. 1 ist am Umfang des Lagerzapfens 18 eine Rändelung 40 mit axialen Erhöhungen und Vertiefungen angebracht. In der Lagerhülse 10 sind federnde Laschen, z. B. an den Rastansätzen 12, vorgesehen, welche radial einwärts gerichtete, in die Rändelung 40 eingreifende Rändelnocken 42 tragen.1 and 3, an interlocking knurling 40, 42 is provided between the bearing pin 18 and the bearing sleeve 10 in order to allow the rotation of the bearing pin 18 to start only from a predetermined minimum torque. In this way, undesired, accidental twisting of the vertical slats in the carriage can be prevented. According to FIG. 1, knurling 40 with axial elevations and depressions is attached to the circumference of the journal 18. In the bearing sleeve 10 are resilient tabs, for. B. on the locking lugs 12 provided, which carry radially inwardly directed, engaging in the knurling 40 knurled cams 42.

Fig. 3 zeigt eine der Fig. 1 entsprechende Darstellung, bei welcher die Rändelung 40 auf der nach oben weisenden Oberfläche eines Ringwulstes 18b angebracht ist, der in vorgegebenem Abstand über dem Lamellenhalter 24 an dem Lagerzapfen 18 angeformt ist und auch den Anschlag 17 trägt. Bei dieser Ausführungsform sind an der unteren Stirnfläche der Lagerhülse 10 entsprechende Rändelnocken 42 angeformt, welche mit der Rändelung 40 des Lagerzapfens 18 zusammenwirken.FIG. 3 shows a representation corresponding to FIG. 1, in which the knurling 40 is attached to the upward-facing surface of an annular bead 18b which is formed on the bearing journal 18 at a predetermined distance above the lamella holder 24 and also carries the stop 17. In this embodiment, corresponding knurled cams 42 are formed on the lower end face of the bearing sleeve 10, which cooperate with the knurling 40 of the bearing pin 18.

Claims (12)

1. Guide carriage for a louvre blind, having a housing (1) with end walls (7) transversely of the direction of travel, with sliding or running elements (6) arranged laterally on the housing and for the displacement of the carriage in a support rail,
with a bearing sleeve (10) having a pinion section (14) and rotatably mounted in a bushing (8) fast with the housing, with a bearing pin (18) frictionally mounted in the bearing sleeve (10) and having arranged on its bottom end a louvre holder (24) which holds a vertical louvre,
with a worm (28) rotatably mounted in openings of the end walls and meshing with the pinion portion (14) of the bearing sleeve (10) and an internal profiling (30) for accommodating a correspondingly profiled turning shaft, with detent springs (16) on the bearing sleeve (10) or respectively the bearing pin (18), which springs project with their engagement ends (16a) into a peripheral groove (20) of the bearing pin (18) or the bearing sleeve (10), the bearing pin (18) being connected fast to the louvre holder (24), characterised in that the peripheral groove (20) is widened outwardly by means of oblique side walls (21) and that the engaging ends (16a) of the detent springs (16) bear against the inclined side walls (21) and, with tensile forces from the inclined side walls (21) and acting on the louvre holder (24), run out radially from the peripheral groove (20) and axially free the bearing pin (18).
2. Guide carriage according to claim 1, characterised in that the bearing pin (18) is formed in one piece on the louvre holder (24).
3. Guide carriage according to claim 1 or 2, characterised in that the detent springs (16) are arranged on the upper end of the bearing sleeve (10) above the pinion section (14).
4. Guide carriage according to claim 1 or 2, characterised in that the detent springs (16) are arranged on the lower end of the bearing sleeve (10).
5. Guide carriage according to one of the preceding claims, characterised in that the engaging ends (16a) of the detent springs (16) around the peripheral groove (20) of the bearing pin (18) have a shape adapted to one another and bear one against the other with prescribed pressure for forming a frictional clutch.
6. Guide carriage according to one of the preceding claims, characterised in that the bearing sleeve (10) is capable of being unreleasably latched in the housing bushing (8) by means of outwardly directed detent projections (12).
7. Guide carriage according to one of the preceding claims, characterised in that the bearing pin (18) has formed thereon, at a prescribed distance above the louvre holder (24), an annular bead (18b), which carries a stock (17), which runs against a coacting stop fast with the housing.
8. Guide carriage according to one of the preceding claims, characterised in that the end walls (7a, 7b) have oppositely directed entry chamfers or bevels (19) on their upper edge for the mounting of the worm gear (26).
9. Guide carriage according to one of the preceding claims, characterised in that interengaging millings (40, 42) are provided between the bearing pin (18) and the bearing sleeve (10).
10. Guide carriage according to claim 9, characterised in that the milling (40) is arranged on the periphery of the bearing pin (18), and that milling projections (42) engaging radially in the milling (40) are formed in the bearing sleeve (10).
11. Guide carriage according to claim 10, characterised in that the radial millings (42) are arranged on plates which are spring-linked in recesses (13) of the bearing sleeve (10).
12. Guide carriage according to claim 9, characterised in that the milling (40) is arranged on an upwardly directed surface of an annular bead (18b) formed on the bearing pin (18), and that the edge millings (42) are formed on the bottom end face of the bearing sleeve (10).
EP86102498A 1985-03-14 1986-02-26 Carriage for a slatted shutter Expired EP0196456B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102498T ATE46560T1 (en) 1985-03-14 1986-02-26 GUIDE CARRIAGE FOR A BLIND BLINDS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853509064 DE3509064A1 (en) 1985-03-14 1985-03-14 GUIDE CARRIAGE FOR A SLATER BLINDS
DE3509064 1985-03-14

Publications (2)

Publication Number Publication Date
EP0196456A1 EP0196456A1 (en) 1986-10-08
EP0196456B1 true EP0196456B1 (en) 1989-09-20

Family

ID=6265132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102498A Expired EP0196456B1 (en) 1985-03-14 1986-02-26 Carriage for a slatted shutter

Country Status (5)

Country Link
US (1) US4759397A (en)
EP (1) EP0196456B1 (en)
AT (1) ATE46560T1 (en)
CA (1) CA1261248A (en)
DE (2) DE3509064A1 (en)

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CA1288040C (en) * 1987-11-24 1991-08-27 J. Richard Evans Louver holder for vertical venetian blinds
US4964191A (en) * 1988-04-04 1990-10-23 Ambassador Industries Carrier and replaceable cartridge hanger assembly
US4967823A (en) * 1988-12-07 1990-11-06 Groupe Plastique Moderne Inc. Vertical blind chariot
US5289863A (en) * 1989-12-13 1994-03-01 Schon B.V. Apparatus for suspending lamellar sun-blinds or the like
DE9307436U1 (en) * 1993-05-17 1993-08-05 Syba Handels- und Vertriebsaktiengesellschaft, Vaduz Bearing pin for a guide carriage of a venetian blind
US5501261A (en) * 1994-10-17 1996-03-26 Peale; Robert G. Window treatment operating mechanism
DE19601897B4 (en) * 1996-01-19 2015-08-27 Mavig Gmbh Suspension device for a slat curtain
GB2322152B (en) * 1997-02-14 2000-09-20 Louver Lite Ltd Assembly for carrying a louvre in a vertical louvre blind
US6009821A (en) * 1998-07-15 2000-01-04 Saudi Arabian Oil Company Double bottom hull for tank ship
US6321821B1 (en) * 1999-12-30 2001-11-27 Benthin Aktiengesellschaft Traveler for a vertical blind
US20060237147A1 (en) * 2005-04-26 2006-10-26 Springs Window Fashions Lp Vertical shade
CN103306569A (en) * 2013-06-13 2013-09-18 西北工业大学 Automatic temperature sensing and adjusting window

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US2807322A (en) * 1954-02-08 1957-09-24 Andrew J Toti Vertical slat venetian blind suspension
US2809693A (en) * 1956-07-24 1957-10-15 William F Sharpe Vertical blind construction
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DE1659557C3 (en) * 1967-02-21 1979-10-04 Bautex, Adolf Stoever Kg, 2857 Langen Slat blind with vertically arranged, laterally displaceable and pivotable slats about their longitudinal axis
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DE8332883U1 (en) * 1983-11-15 1984-03-22 Berthold Haller GmbH, 7209 Aldingen SPROCKET FOR LAMELLENSTORE CARRIERS

Also Published As

Publication number Publication date
US4759397A (en) 1988-07-26
DE3665750D1 (en) 1989-10-26
DE3509064A1 (en) 1986-09-25
EP0196456A1 (en) 1986-10-08
ATE46560T1 (en) 1989-10-15
CA1261248A (en) 1989-09-26

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