EP1637694B1 - Winding drum - Google Patents

Winding drum Download PDF

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Publication number
EP1637694B1
EP1637694B1 EP20050004527 EP05004527A EP1637694B1 EP 1637694 B1 EP1637694 B1 EP 1637694B1 EP 20050004527 EP20050004527 EP 20050004527 EP 05004527 A EP05004527 A EP 05004527A EP 1637694 B1 EP1637694 B1 EP 1637694B1
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EP
European Patent Office
Prior art keywords
winding drum
flattened
region
drum
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.)
Expired - Fee Related
Application number
EP20050004527
Other languages
German (de)
French (fr)
Other versions
EP1637694A2 (en
EP1637694A3 (en
Inventor
Richard Frank
Jochen Hachtel
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.)
MHZ Hachtel GmbH and Co KG
Original Assignee
MHZ Hachtel GmbH and Co KG
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Publication date
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Publication of EP1637694A2 publication Critical patent/EP1637694A2/en
Publication of EP1637694A3 publication Critical patent/EP1637694A3/en
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Publication of EP1637694B1 publication Critical patent/EP1637694B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32Operating, guiding, or securing devices therefor
    • E06B9/322Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47HFURNISHINGS FOR WINDOWS OR DOORS
    • A47H11/00Curtain cord appurtenances
    • A47H11/06Cord pulleys
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32Operating, guiding, or securing devices therefor
    • E06B9/322Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3225Arrangements to aid the winding of cords rollers

Definitions

  • the invention relates to a winding drum of a winding arrangement, which can be arranged on or on a shaft of the winding arrangement, wherein the winding drum has a lateral surface.
  • the disclosed winding arrangement has a hexagonal bar on which a cord which is connected to the lowermost panel is wound up.
  • the hexagonal bar has six flattened areas extending over the entire hexagonal bar.
  • Object of the present invention is to develop a winding drum, so that a uniform, controlled winding and unwinding of a string or the like on the winding drum is made possible.
  • a winding drum of the aforementioned type wherein at least one flattened area is formed on the lateral surface, which extends at least partially in the axial direction along the drum, wherein the drum has a feed region which extends approximately over the entire circumference of the drum , for a string or the like, and the at least one flattened area ends in front of the feed area.
  • a winding drum usually has a round cross-section. Now, if at least one area is flattened, the cross-section in a section is no longer completely round. On this side is the diameter reduced the winding drum. This has the effect that a cord to be wound onto the winding drum can be displaced particularly well in the axial direction along the winding drum.
  • winding drum according to the invention is suitable for use in blinds, blinds, Roman blinds, pleated curtains, etc.
  • the drum has a feeding area for a string or the like, and the at least one flattened area ends before the feeding area.
  • This measure facilitates the transport of the wound string or the like away from the feed area.
  • an outer cross-section reduction takes place in a section of the winding drum.
  • a similar effect is achieved as in a frustoconical winding drum, in which the axial line transport on the lateral surface is facilitated solely by the conicity of the winding drum.
  • the drum runs around its entire circumference, so that the line can not jam in a gap between a bearing part and the drum and thereby generate increased friction.
  • the drum In the feed area, the drum must be round so that the flattened areas result in a jump in diameter.
  • the windings can reach the area of reduced outer diameter in a particularly simple manner if a flowing transition, in particular a bevel, is provided between the feed area and the flattened area.
  • the transition from the feed region to the flattened region can be designed in a stepped manner. This reliably prevents a winding from unintentionally moving back into the feed area.
  • the flattened portion is formed as a plane which is inclined to the axis of the winding drum, one end of the plane is wider than the other end of the plane in a cylindrical winding drum in the basic form. It is particularly preferred if the flattened area narrows towards the feed area. This means that the plane extends away from the feed area in the direction of the axis of the drum. Even with a drum having a cylindrical basic shape, a continuous reduction in diameter can be produced in this way, which facilitates the axial transport of the string.
  • a plane as a flattened area attached to her opposite ends is different widths can also be provided in the basic shape conical winding drums. By different deep recesses in the drum at the ends of the plane, the slope of the plane can be adjusted.
  • a plurality of flattened regions may be provided, wherein in each case preferably two flattened regions are opposite each other.
  • flattened regions can be provided on the jacket of the drum on two opposite longitudinal sides.
  • Such a design of the drum is particularly advantageous if it is produced as a plastic injection molded part.
  • the flattened areas can then run the dividing line of the injection mold. At this parting line often arise burrs that could hinder the string in their axial displacement. By providing the flattened areas, however, the occurrence of such burrs is harmless.
  • the winding drum substantially cylindrical or frusto-conical. If the plane is inclined, a cylindrical basic shape may be sufficient. In a frusto-conical basic shape, the plane can also be arranged obliquely to the axis of the frusto-conical shape and thus lie approximately parallel to a tangent or tangential plane of the drum surface.
  • Fig. 1a is a perspective view of an embodiment of a winding drum 10 is shown.
  • This drum 10 is designed round, wherein it tapers conically from the end 12 to the end 11.
  • On its longitudinal sides, it has flattened areas 14 which, however, do not extend over the entire length of the drum 10, but end before the actual line feed area 16.
  • the flattened region 14 smoothly passes through a bevel 15 back into the conical surface of the drum 10, which is especially in Fig. 1b is clarified, showing the drum 10 in longitudinal section through the flattened regions 14 and 14 '.
  • the regions 14 and 14 'with the transition regions 15 and 15' are arranged exactly opposite each other. In their area, the dividing line of an injection mold for producing the drum 10 can run.
  • a cover or a housing may be provided for the winding drum 10. To a single-layer winding To ensure a cover, which is spaced about cord thickness of the lateral surface of the feed region 16, in the supply region 16, that is only over a part of the length of the drum 10 may be sufficient.
  • Fig. 2a is a first side view of a generally cylindrical winding drum 20 is shown.
  • a flattened area 21 can be seen, which widens from its left end 22 to its right end 23. This means that the flattened region 21 extends obliquely to the axis of the winding drum 20. The further one moves away from the feed region 24, the wider becomes the flattened region 21.
  • Fig. 2b can be seen in the rotated by 90 ° side view that the flattened portion 21 extends obliquely to the axis 25 of the drum 20.
  • the transition region is formed as a slope 26.
  • FIG. 3 is a sectional view through the winding drum 20 of Fig. 2a shown.
  • the lateral surface 27 of a cylindrical basic shape can be seen.
  • the flattened portions 21 ', 21 " are the flattened portions 21 ".

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Description

Die Erfindung betrifft eine Wickeltrommel einer Aufwickelanordnung, die auf oder an einer Welle der Aufwickelanordnung anordenbar ist, wobei die Wickeltrommel eine Mantelfläche aufweist.The invention relates to a winding drum of a winding arrangement, which can be arranged on or on a shaft of the winding arrangement, wherein the winding drum has a lateral surface.

Um Behänge kontrolliert abzulassen und wieder nach oben zu ziehen, sind Aufwickelanordnungen bekannt, an denen eine Schnur befestigt ist, die mit ihrem anderen Ende am unteren Ende des Behangs befestigt ist. Beim Auf-und Abwickeln der Schnur ist darauf zu achten, dass die Schnur sich gleichmäßig aufwickelt, ohne Schlaufen zu bilden. Insbesondere sind an einem Behang in der Regel zwei oder mehr Schnüre angeordnet, sodass auch mehrere Aufwickelanordnungen vorgesehen sind. Die Aufwickelanordnungen sollen die Schnüre gleichmäßig auf- und abwickeln, sodass es zu keiner Schräglage des Behangs kommt. Die Aufwickelanordnungen umfassen in der Regel eine Wickeltrommel, die zylindrisch oder kegelstumpfförmig ausgebildet ist.To drape hangings in a controlled manner and pull back up, Aufwickelanordnungen are known to which a cord is attached, which is attached at its other end to the lower end of the curtain. When winding and unwinding the line, make sure that the line winds evenly without forming loops. In particular, two or more cords are usually arranged on a curtain, so that several Aufwickelanordnungen are provided. The Aufwickelanordnungen should evenly unwind and unwind the strings, so there is no tilt of the curtain. The take-up assemblies typically include a winding drum that is cylindrical or frusto-conical in shape.

Aus der US 5,907,227 ist eine Aufwickelanordnung einer elektrisch betriebenen Jalousie bekannt. Die Jalousie weist einen mit einer Batterie verbundenen Motor auf, durch den die Aufwickelanordnung und schließlich die Blenden der Jalousie bewegt werden können. Die offenbarte Aufwickelanordnung weist hierzu eine Sechskantstange auf, auf die eine Schnur, die mit der untersten Blende verbunden ist, aufgewickelt wird. Die Sechskantstange weist dabei sechs, über die gesamte Sechskantstange verlaufende, abgeflachte Bereiche auf.From the US 5,907,227 is a winding arrangement of an electrically operated blind known. The blind has a motor connected to a battery, through which the winding arrangement and finally the blinds of the blind can be moved. For this purpose, the disclosed winding arrangement has a hexagonal bar on which a cord which is connected to the lowermost panel is wound up. The hexagonal bar has six flattened areas extending over the entire hexagonal bar.

Aufgabe der vorliegenden Erfindung ist es, eine Wickeltrommel weiterzubilden, sodass ein gleichmäßiges, kontrolliertes Auf- und Abwickeln einer Schnur oder dergleichen auf der Wickeltrommel ermöglicht wird.Object of the present invention is to develop a winding drum, so that a uniform, controlled winding and unwinding of a string or the like on the winding drum is made possible.

Gelöst wird diese Aufgabe durch eine Wickeltrommel der eingangs genannten Art, wobei an der Mantelfläche wenigstens ein abgeflachter Bereich ausgebildet ist, der sich zumindest abschnittsweise in axialer Richtung entlang der Trommel erstreckt, wobei die Trommel einen Zuführbereich, der über den gesamten Umfang der Trommel rund verläuft, für eine Schnur oder dergleichen aufweist und der wenigstens eine abgeflachte Bereich vor dem Zuführbereich endet. Eine Wickeltrommel weist in der Regel einen runden Querschnitt auf. Wenn nun zumindest ein Bereich abgeflacht ist, ist der Querschnitt in einem Abschnitt nicht mehr vollständig rund. An dieser Seite ist der Durchmesser der Wickeltrommel reduziert. Dies bewirkt, dass eine auf die Wickeltrommel aufzuwickelnde Schnur besonders gut in axialer Richtung entlang der Wickeltrommel verschoben werden kann. Dadurch können bereits vorhandene Wicklungen durch neu hinzukommende Wicklungen verdrängt werden, ohne dass sich mehrere Wicklungen auf der Wickeltrommel übereinander legen und ohne dass übermäßige Reibung entsteht. Durch diese Maßnahme wird ein gleichmäßiges Auf- und Abwickeln sichergestellt. Die erfindungsgemäße Wickeltrommel ist für die Verwendung bei Rollos, Jalousien, Raffrollos, Plissee-Vorhängen etc. geeignet.This object is achieved by a winding drum of the aforementioned type, wherein at least one flattened area is formed on the lateral surface, which extends at least partially in the axial direction along the drum, wherein the drum has a feed region which extends approximately over the entire circumference of the drum , for a string or the like, and the at least one flattened area ends in front of the feed area. A winding drum usually has a round cross-section. Now, if at least one area is flattened, the cross-section in a section is no longer completely round. On this side is the diameter reduced the winding drum. This has the effect that a cord to be wound onto the winding drum can be displaced particularly well in the axial direction along the winding drum. As a result, already existing windings can be displaced by newly added windings without several windings overlapping one another on the winding drum and without excessive friction occurring. This measure ensures uniform winding and unwinding. The winding drum according to the invention is suitable for use in blinds, blinds, Roman blinds, pleated curtains, etc.

Die Trommel weist einen Zuführbereich für eine Schnur oder dergleichen auf und der wenigstens eine abgeflachte Bereich endet vor dem Zuführbereich. Diese Maßnahme erleichtert den Transport der aufzuwickelnden Schnur oder dergleichen weg vom Zuführbereich. Insbesondere erfolgt eine Außenquerschnittsverringerung in einem Abschnitt der Wickeltrommel. Dadurch wird eine ähnliche Wirkung erzielt wie bei einer kegelstumpfförmigen Wickeltrommel, bei der der axiale Schnurtransport auf der Mantelfläche ausschließlich durch die Konizität der Wickeltrommel erleichtert wird. Im Bereich der Schnurzuführung verläuft die Trommel über ihren gesamten Umfang rund, damit sich die Schnur nicht in einem Spalt zwischen einem Lagerteil und der Trommel verklemmen und dadurch eine erhöhte Reibung erzeugen kann. Im Zuführbereich muss die Trommel rund sein, sodass durch die abgeflachten Bereiche quasi ein Durchmessersprung erzielt wird.The drum has a feeding area for a string or the like, and the at least one flattened area ends before the feeding area. This measure facilitates the transport of the wound string or the like away from the feed area. In particular, an outer cross-section reduction takes place in a section of the winding drum. As a result, a similar effect is achieved as in a frustoconical winding drum, in which the axial line transport on the lateral surface is facilitated solely by the conicity of the winding drum. In the area of the line feed, the drum runs around its entire circumference, so that the line can not jam in a gap between a bearing part and the drum and thereby generate increased friction. In the feed area, the drum must be round so that the flattened areas result in a jump in diameter.

Die Wicklungen können auf besonders einfache Art und Weise auf den Bereich mit verringertem Außendurchmesser gelangen, wenn zwischen dem Zuführbereich und dem abgeflachten Bereich ein fließender Übergang, insbesondere eine Schräge, vorgesehen ist.The windings can reach the area of reduced outer diameter in a particularly simple manner if a flowing transition, in particular a bevel, is provided between the feed area and the flattened area.

Bei einer alternativen Ausführungsform kann der Übergang vom Zuführbereich zum abgeflachten Bereich stufenförmig ausgestaltet sein. Dadurch wird es sicher vermieden, dass sich eine Wicklung unbeabsichtigt wieder in den Zuführbereich bewegt.In an alternative embodiment, the transition from the feed region to the flattened region can be designed in a stepped manner. This reliably prevents a winding from unintentionally moving back into the feed area.

Wenn der abgeflachte Bereich als Ebene ausgebildet ist, die schräg zur Achse der Wickeltrommel ausgelegt ist, ist bei einer in der Grundform zylindrischen Wickeltrommel ein Ende der Ebene breiter als das andere Ende der Ebene. Besonders bevorzugt ist es, wenn der abgeflachte Bereich sich zum Zuführbereich hin verschmälert. Dies bedeutet, dass sich die Ebene vom Zuführbereich weg in Richtung zur Achse der Trommel erstreckt. Auch bei einer Trommel mit einer zylindrischen Grundform kann auf diese Weise eine kontinuierliche Durchmesserverringerung erzeugt werden, die den axialen Schnurtransport erleichtert. Eine Ebene als abgeflachter Bereich, die an ihren gegenüberliegenden Enden unterschiedlich breit ist, kann auch bei in der Grundform kegelförmigen Wickeltrommeln vorgesehen sein. Durch unterschiedlich tiefe Ausnehmungen in der Trommel an den Enden der Ebene kann die Steigung der Ebene eingestellt werden.If the flattened portion is formed as a plane which is inclined to the axis of the winding drum, one end of the plane is wider than the other end of the plane in a cylindrical winding drum in the basic form. It is particularly preferred if the flattened area narrows towards the feed area. This means that the plane extends away from the feed area in the direction of the axis of the drum. Even with a drum having a cylindrical basic shape, a continuous reduction in diameter can be produced in this way, which facilitates the axial transport of the string. A plane as a flattened area attached to her opposite ends is different widths can also be provided in the basic shape conical winding drums. By different deep recesses in the drum at the ends of the plane, the slope of the plane can be adjusted.

Bei einer bevorzugten Ausgestaltung der Erfindung können mehrere abgeflachte Bereiche vorgesehen sein, wobei sich vorzugsweise jeweils zwei abgeflachte Bereiche gegenüberliegen. Insbesondere können am Mantel der Trommel an zwei sich gegenüberliegenden Längsseiten abgeflachte Bereiche vorgesehen sein. Eine solche Ausgestaltung der Trommel ist insbesondere dann vorteilhaft, wenn diese als Kunststoffspritzgießteil hergestellt wird. In den abgeflachten Bereichen kann dann die Trennlinie der Spritzgießform verlaufen. An dieser Trennlinie entstehen häufig Grate, die die Schnur in ihrer axialen Verschiebung behindern könnten. Durch Vorsehen der abgeflachten Bereiche ist das Entstehen solcher Grate jedoch unschädlich.In a preferred embodiment of the invention, a plurality of flattened regions may be provided, wherein in each case preferably two flattened regions are opposite each other. In particular, flattened regions can be provided on the jacket of the drum on two opposite longitudinal sides. Such a design of the drum is particularly advantageous if it is produced as a plastic injection molded part. In the flattened areas can then run the dividing line of the injection mold. At this parting line often arise burrs that could hinder the string in their axial displacement. By providing the flattened areas, however, the occurrence of such burrs is harmless.

Es ist denkbar, die Wickeltrommel im Wesentlichen zylindrisch oder kegelstumpfförmig auszubilden. Wenn die Ebene geneigt ist, kann eine zylindrische Grundform ausreichend sein. Bei einer kegelstumpfförmigen Grundform kann die Ebene ebenfalls schräg zur Achse der kegelstumpfförmigen Form angeordnet sein und damit in etwa parallel zu einer Tangente bzw. Tangentialebene der Trommeloberfläche liegen.It is conceivable to form the winding drum substantially cylindrical or frusto-conical. If the plane is inclined, a cylindrical basic shape may be sufficient. In a frusto-conical basic shape, the plane can also be arranged obliquely to the axis of the frusto-conical shape and thus lie approximately parallel to a tangent or tangential plane of the drum surface.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels der Erfindung, anhand der Figuren der Zeichnung, die erfindungswesentliche Einzelheiten zeigen, und aus den Ansprüchen. Die einzelnen Merkmale können je einzeln für sich oder zu mehreren in beliebiger Kombination bei einer Variante der Erfindung verwirklicht sein.Further features and advantages of the invention will become apparent from the following description of an embodiment of the invention, with reference to the figures of the drawing, the invention essential details show, and from the claims. The individual features can be realized individually for themselves or for several in any combination in a variant of the invention.

Ein Ausführungsbeispiel ist in der schematischen Zeichnung dargestellt und wird in der nachfolgenden Beschreibung erläutert.An embodiment is shown in the schematic drawing and will be explained in the following description.

Es zeigt:

Fig. 1a
eine perspektivische Ansicht einer Ausführungsform einer Trommel;
Fig. 1b
einen Längsschnitt durch die Trommel aus Fig. 1a entlang der Linie A-A;
Fig. 2a
eine erste Seitenansicht einer Wickeltrommel;
Fig. 2b
eine Seitenansicht bei um 90° gedrehter Wickeltrommel;
Fig. 3
eine Schnittdarstellung gemäß III-III der Fig. 2a; und
Fig. 4
eine Schnittdarstellung gemäß IV-IV der Fig. 2a.
It shows:
Fig. 1a
a perspective view of an embodiment of a drum;
Fig. 1b
a longitudinal section through the drum Fig. 1a along the line AA;
Fig. 2a
a first side view of a winding drum;
Fig. 2b
a side view at 90 ° rotated winding drum;
Fig. 3
a sectional view according to III-III of Fig. 2a ; and
Fig. 4
a sectional view according to IV-IV of Fig. 2a ,

In Fig. 1a ist in perspektivischer Ansicht eine Ausgestaltung einer Wickeltrommel 10 dargestellt. Diese Trommel 10 ist rund ausgestaltet, wobei sie sich vom Ende 12 zum Ende 11 hin konisch verjüngt. An ihren Längsseiten weist sie abgeflachte Bereiche 14 auf, die sich jedoch nicht über die gesamte Länge der Trommel 10 erstrecken, sondern vor dem eigentlichen Schnurzuführbereich 16 enden. Hier geht der abgeflachte Bereich 14 sanft durch eine Schräge 15 wieder in die konische Mantelfläche der Trommel 10 über, was insbesondere auch in Fig. 1b verdeutlicht ist, die die Trommel 10 im Längsschnitt durch die abgeflachten Bereiche 14 und 14' zeigt. Die Bereiche 14 und 14' mit den Übergangsbereichen 15 und 15' sind genau gegenüberliegend angeordnet. In ihrem Bereich kann die Trennlinie einer Spritzgießform zur Herstellung der Trommel 10 verlaufen. An solchen Trennlinien entstehen in der Regel Grate auf der Oberfläche der Trommel 10, die durch die abgeflachten Bereiche 14 und 14' jedoch unschädlich für die Bewegung der Schnur in axialer Richtung sind, da in diesen abgeflachten Bereichen 14 und 14' die Schnur die Trommel nicht berührt oder zumindest nicht unter Druck berührt. Für die Wickeltrommel 10 kann eine Abdeckung oder ein Gehäuse vorgesehen sein. Um ein einlagiges Aufwickeln sicherzustellen, kann eine Abdeckung, die etwa um Schnurdicke von der Mantelfläche des Zuführbereichs 16 beabstandet ist, im Zuführbereich 16, d. h. nur über einen Teil der Länge der Trommel 10 ausreichend sein.In Fig. 1a is a perspective view of an embodiment of a winding drum 10 is shown. This drum 10 is designed round, wherein it tapers conically from the end 12 to the end 11. On its longitudinal sides, it has flattened areas 14 which, however, do not extend over the entire length of the drum 10, but end before the actual line feed area 16. Here, the flattened region 14 smoothly passes through a bevel 15 back into the conical surface of the drum 10, which is especially in Fig. 1b is clarified, showing the drum 10 in longitudinal section through the flattened regions 14 and 14 '. The regions 14 and 14 'with the transition regions 15 and 15' are arranged exactly opposite each other. In their area, the dividing line of an injection mold for producing the drum 10 can run. At such parting lines are usually burrs on the surface of the drum 10, but by the flattened portions 14 and 14 'are harmless to the movement of the cord in the axial direction, since in these flattened areas 14 and 14', the cord does not drum touched or at least not touched under pressure. For the winding drum 10, a cover or a housing may be provided. To a single-layer winding To ensure a cover, which is spaced about cord thickness of the lateral surface of the feed region 16, in the supply region 16, that is only over a part of the length of the drum 10 may be sufficient.

In der Fig. 2a ist eine erste Seitenansicht einer in der Grundform zylindrischen Wickeltrommel 20 gezeigt. In der Draufsicht ist ein abgeflachter Bereich 21 zu sehen, der sich von seinem linken Ende 22 zu seinem rechten Ende 23 aufweitet. Dies bedeutet, dass der abgeflachte Bereich 21 schräg zur Achse der Wickeltrommel 20 verläuft. Je weiter man sich also vom Zuführbereich 24 entfernt, desto breiter wird der abgeflachte Bereich 21.In the Fig. 2a is a first side view of a generally cylindrical winding drum 20 is shown. In the plan view, a flattened area 21 can be seen, which widens from its left end 22 to its right end 23. This means that the flattened region 21 extends obliquely to the axis of the winding drum 20. The further one moves away from the feed region 24, the wider becomes the flattened region 21.

In der Fig. 2b ist in der um 90° gedrehten Seitenansicht zu erkennen, dass der abgeflachte Bereich 21 schräg zur Achse 25 der Trommel 20 verläuft. Der Übergangsbereich ist als Schräge 26 ausgebildet.In the Fig. 2b can be seen in the rotated by 90 ° side view that the flattened portion 21 extends obliquely to the axis 25 of the drum 20. The transition region is formed as a slope 26.

In der Fig. 3 ist eine Schnittdarstellung durch die Wickeltrommel 20 der Fig. 2a gezeigt. Zum einen ist die Mantelfläche 27 einer zylindrischen Grundform zu sehen. An zwei sich gegenüberliegenden Stellen befinden sich die abgeflachten Bereiche 21', 21".In the Fig. 3 is a sectional view through the winding drum 20 of Fig. 2a shown. On the one hand, the lateral surface 27 of a cylindrical basic shape can be seen. At two opposite points are the flattened portions 21 ', 21 ".

In der Fig. 4 ist wiederum die zylindrische Grundform zu sehen. Allerdings sind die abgeflachten Bereiche 21"' und 21"" größer, da der abgeflachte Bereich 21 an dieser Stelle breiter ist.In the Fig. 4 again the cylindrical basic shape can be seen. However, the flattened portions 21 "'and 21""are larger because the flattened portion 21 is wider at this point.

Claims (9)

  1. Winding drum (10, 20) for a take up winding arrangement which can be arranged on or at a shaft of the take up winding arrangement, having an outer surface (27), in which on the outer surface (27) there is formed at least one flattened region (14, 14', 21, 21', 21", 21"', 21"") which extends, at least in some sections, in the axial direction, along the drum (10, 20), characterised in that the drum (10, 20) has an infeed region (16, 24) for a cord or the like which extends around the entire circumference of the drum (10, 20), and the at least one flattened region (14, 14', 21, 21', 21", 21"', 21"") ends before the infeed region (16, 24).
  2. Winding drum according to claim 1, characterised in that between the infeed region (16, 24) and the flattened region (14, 14', 21, 21', 21", 21"', 21"") there is provided a smooth transition, especially an incline (26).
  3. Winding drum according to claim 1, characterised in that the transition from the infeed region (16, 24) to the flattened region (14, 14', 21, 21', 21", 21"', 21"") is formed in the shape of a step.
  4. Winding drum according to claim 1, characterised in that the flattened region (14, 14', 21, 21', 21", 21"', 21"") is formed as a planar surface which is oriented at an inclination to the axis (25) of the winding drum (10, 20).
  5. Winding drum according to claim 4, characterised in that the flattened region (21, 21', 21", 21"', 21"") diminishes towards the infeed region (24).
  6. Winding drum according to one of the preceding claims, characterised in that a plurality of flattened regions (14, 14', 21, 21', 21", 21"', 21"") are provided, preferably two respective flattened regions (14, 14', 21, 21', 21", 21"', 21"") being disposed opposite one another.
  7. Winding drum according to one of the preceding claims, characterised in that the winding drum (10, 20) is formed essentially cylindrically.
  8. Winding drum according to one of the preceding claims 1 to 6, characterised in that the winding drum (10, 20) is formed essentially in the shape of a truncated cone.
  9. Winding drum according to one of the preceding claims, characterised in that a parting line of an injection mould for producing the winding drum (10, 20), extends in the region of the flattened region (14, 14', 21, 21', 21", 21"', 21"").
EP20050004527 2004-09-18 2005-03-02 Winding drum Expired - Fee Related EP1637694B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004045370 2004-09-18
DE102005000963A DE102005000963B4 (en) 2004-09-18 2005-01-07 reeling

Publications (3)

Publication Number Publication Date
EP1637694A2 EP1637694A2 (en) 2006-03-22
EP1637694A3 EP1637694A3 (en) 2010-03-24
EP1637694B1 true EP1637694B1 (en) 2011-03-30

Family

ID=35457741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050004527 Expired - Fee Related EP1637694B1 (en) 2004-09-18 2005-03-02 Winding drum

Country Status (2)

Country Link
EP (1) EP1637694B1 (en)
DE (2) DE102005000963B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004719B4 (en) 2007-01-31 2018-04-05 Mhz Hachtel Gmbh & Co. Kg Method for mounting a winding arrangement of a blind
DE102011050666B4 (en) 2011-05-27 2014-06-12 Achim Lienert rewinder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT45074B (en) 1909-09-10 1910-11-25 Samuel Jacob Herzstark Switching device for the ruler (counter) of Thomas calculating machines.
ATE45074T1 (en) * 1983-12-27 1989-08-15 Gen Clutch Corp SUSPENSION RAIL FOR WINDOW CURTAINS.
DE9304886U1 (en) * 1993-03-31 1993-06-09 Prosch, Dieter, 2000 Hamburg Roman blind with a winding shaft for the ends of pull cords
US5698958A (en) * 1993-06-11 1997-12-16 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
IT246534Y1 (en) * 1999-02-19 2002-04-09 Beta System S A S Di Bortoloso CURTAIN TIE LINKING DEVICE
DE20102734U1 (en) * 2001-02-16 2001-09-06 Bernhard Böckner GmbH & Co.KG, Herstellungs- und Vertriebsgesellschaft, 35463 Fernwald Device for driving adjustable blinds
ATE422598T1 (en) * 2002-12-19 2009-02-15 Hunter Douglas Ind Bv RAISE AND LOWERING MECHANISM FOR BLINDS

Also Published As

Publication number Publication date
DE502005011184D1 (en) 2011-05-12
DE102005000963B4 (en) 2008-07-03
DE102005000963A1 (en) 2006-04-06
EP1637694A2 (en) 2006-03-22
EP1637694A3 (en) 2010-03-24

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