EP1254616A2 - Lumbar support - Google Patents

Lumbar support Download PDF

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Publication number
EP1254616A2
EP1254616A2 EP02009088A EP02009088A EP1254616A2 EP 1254616 A2 EP1254616 A2 EP 1254616A2 EP 02009088 A EP02009088 A EP 02009088A EP 02009088 A EP02009088 A EP 02009088A EP 1254616 A2 EP1254616 A2 EP 1254616A2
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EP
European Patent Office
Prior art keywords
membrane
cushion
backrest frame
backrest
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02009088A
Other languages
German (de)
French (fr)
Other versions
EP1254616A3 (en
EP1254616B1 (en
Inventor
Harry Fischer
Klaus-Peter Grasse
Manfred Schlegel
Mathias Seiler
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Sedus Stoll AG
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Sedus Stoll AG
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Publication date
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Publication of EP1254616A2 publication Critical patent/EP1254616A2/en
Publication of EP1254616A3 publication Critical patent/EP1254616A3/en
Application granted granted Critical
Publication of EP1254616B1 publication Critical patent/EP1254616B1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means

Definitions

  • the invention relates to the field of the furniture industry. It affects one Device for lumbar support for an office swivel chair, the Backrest consists of a membrane-covered backrest frame.
  • lordosis support such as lumbar pillows, which in the Backrests of office chairs are integrated to counteract.
  • a lordosis is the forward curvature of the spine (hollow cross).
  • the Device for lordosis support should the cavity as accurately as possible to complete.
  • Effective lumbar supports are known which are used on chairs with a additional backrest padding are attached (e.g. New York model Applicant).
  • lordosis support Office chairs with membrane-covered backrest are sometimes uncomfortable, too when they are soft or padded, as is the case with the model Aeron from Herman Miller is the case.
  • a lordosis pillow is used there, which is height adjustable in two guide slots in the backrest frame.
  • a foam-padded backrest allows between the upholstery plate and attach a plastic element to the foam, which is in height is individually slidable and the upholstery bulges forward at the point which supports the lordosis area of the respective user.
  • the upholstery itself ensures that the plastic element does not press. After all, it is Plastic element just as upholstered as the rest of the backrest.
  • the Upholstery largely equalizes the structure.
  • the invention tries to overcome these disadvantages of the known state of the art Avoid technology. It is based on the task of a device for Lumbar support for an office chair with a backrest made of to develop a membrane-covered backrest frame, whereby the lumbar support should be very easy to adjust in height, the user of the Do not press the chair and at the same time individually the lumbar area should support effectively.
  • this is for a device for lordosis support an office chair according to the preamble of claim 1 thereby achieved that the device is both height adjustable and horizontally stretchable is.
  • the lumbar cushion adjustment is independent of the membrane in the Backrest frame stored, but has sufficient elasticity, which leads to the pillow not pressing.
  • the elastic element is a rubber belt. This yields sufficiently under load and causes elongation of the Carrier elements, so that the device, in particular the cushion, after deflects behind. This means that there is no unduly high back pressure.
  • Fig. 1 shows a plan view of the one in the backrest frame (1) Office chairs with a membrane-covered backrest Device according to the invention in a first embodiment.
  • Fig. 2 shows the corresponding section along the line II-II.
  • the backrest of the chair consists of a backrest frame 1, which is covered with a membrane 2.
  • the membrane 2 is by means of membrane 3 in Backrest frame 1 attached.
  • the inventive device for Lumbar support is arranged behind the membrane 2 and independent of the membrane 2 stored in the backrest frame 1.
  • the middle section has two relatively rigid Carrier elements 4 made of plastic, which in the middle by an elastic Rubber belt 5 are interconnected.
  • the carrier elements 4 each have an elongated hole 12 on the sides facing the rubber belt 5.
  • To the other sides (outside), the carrier elements 4 have guide webs 6. over which they are guided in a guide slot 7 of the backrest frame 1 become. A simple height adjustment of the device can thus be implemented.
  • the Tension of the membrane 2 ensures that the guide webs 6 are not can snap out.
  • the cushion plate 9 with the cushion cushion 8 and the plastic plate 10 are connected to one another via two clip connections 11.
  • the clip connections 11 are each guided in the elongated holes 12 of the carrier elements 4, so that on this way all three main parts of the lumbar support are interconnected are.
  • the leadership of the clip connection 11 in the slots 12 allows that the cushion plate 9 with the cushion pad 8 and the plastic plate 10 on the Carrier elements 4 are horizontally displaceable.
  • This construction ensures that the lumbar cushion adjustment as well how the membrane 2 can deflect to the rear when the user is following leans back and exerts pressure on the membrane.
  • the rubber belt 5 gives way causes an elongation of the carrier element, which has the consequence that the Upholstery cushion 8 deflects backwards.
  • the advantage of the invention is, in particular, that the elasticity of the Rubber belt and the strength and density of the cushion structure the effectiveness - The pressure of the device can be precisely matched.
  • the cushion is easily exchangeable and through the use of different clamping materials an individual preload is realized.
  • FIG. 3 shows a further exemplary embodiment. It differs from the first embodiment only in that instead of Guide slot in the backrest frame 1, a guide web 13 on Backrest frame 1 is arranged. The guide webs 6 of the support elements 4 are guided on these guide webs 13. The tension of the membrane 2 ensures that the guide webs 6 can not snap out.

Abstract

Lordosis-supporting device is arranged behind and independently of a membrane (2) covering a back rest frame (1) of an office chair. The device is height-adjustable and horizontally extendable. Preferred Features: The device comprises a middle part having two rigid support elements (4) joined together by a rubber strap (5) arranged in the middle and having on their outer sides a lateral guide bar (6) movably arranged in the back rest frame, a padded cushion fixed on a padding plate as a front part facing the membrane, and a plastic plate as a rear part. The padded cushion and the plastic plate are joined together by a clip connection (11) guided in slots (12) in the support element.

Description

Technisches GebietTechnical field

Die Erfindung bezieht sich auf das Gebiet der Möbelindustrie. Sie betrifft eine Vorrichtung zur Lordosenabstützung für einen Bürodrehstuhl, dessen Rückenlehne aus einem membranbespannten Rückenlehnenrahmen besteht.The invention relates to the field of the furniture industry. It affects one Device for lumbar support for an office swivel chair, the Backrest consists of a membrane-covered backrest frame.

Stand der TechnikState of the art

Heutzutage klagen immer mehr Menschen über Rückenschmerzen. Aufgrund zu geringer Bewegung und großer seelischer Belastungen, wie Dauerstress, erschlafft und verkümmert der Bewegungsapparat, die Muskulatur ermüdet und verkrampft, sowie Gewebe und Organe werden schlecht durchblutet. Oftmals muß die Wirbelsäule als sensibler und sehr beanspruchter Körperteil diese Rechnung mit Schmerzen und Problemen bezahlen.Nowadays, more and more people complain of back pain. Due to low movement and high mental stress, such as permanent stress, the musculoskeletal system slackens and atrophies, the muscles get tired and cramped, and tissues and organs are poorly supplied with blood. Often must the spine as a sensitive and very stressed body part this calculation pay with pain and problems.

Dem versucht man beispielsweise durch die Verwendung von speziellen Vorrichtungen zur Lordosenabstützung, wie Lordosenkissen, welche in die Rückenlehnen von Bürostühlen integriert sind, entgegenzuwirken. Als Lordose wird die Krümmung der Wirbelsäule nach vorn (Hohlkreuz) bezeichnet. Die Vorrichtung zur Lordosenabstützung soll dabei den Hohlraum möglichst genau ausfüllen. One tries this, for example, by using special ones Devices for lordosis support, such as lumbar pillows, which in the Backrests of office chairs are integrated to counteract. As a lordosis is the forward curvature of the spine (hollow cross). The Device for lordosis support should the cavity as accurately as possible to complete.

Bekannt sind wirkungsvolle Lordosenabstützungen, welche an Stühlen mit einer zusätzlichen Rückenlehnenpolsterung angebracht sind (z. B. Modell New York der Anmelderin).Effective lumbar supports are known which are used on chairs with a additional backrest padding are attached (e.g. New York model Applicant).

Die bisher bekannten Lösungen für Bürostühle mit membranbespannter Rückenlehne ohne Rückenlehnenpolsterung sind allerdings unbefriedigend.The previously known solutions for office chairs with membrane covering Backrests without backrest upholstery are unsatisfactory.

Einerseits drücken diese bekannten Vorrichtungen zur Lordosenabstützung bei Bürostühlen mit membranbespannter Rückenlehne partiell unangenehm, auch dann, wenn sie weich oder umpolstert sind, wie dies beispielweise beim Modell Aeron der Fa. Herman Miller der Fall ist. Dort wird ein Lordosenkissen verwendet, welches in zwei Führungsschlitzen im Rückenlehnenrahmen höhenverstellbar ist.On the one hand, these known devices support lordosis support Office chairs with membrane-covered backrest are sometimes uncomfortable, too when they are soft or padded, as is the case with the model Aeron from Herman Miller is the case. A lordosis pillow is used there, which is height adjustable in two guide slots in the backrest frame.

Andererseits sind bei Stühlen mit membranbespannter Rückenlehne auch Modelle mit Stützvorrichtungen bekannt, welche nur zu einer kaum wahrnehmbaren Lordosenunterstützung führen, z. B. Wilkhahn Modus, Vitra Meda Chair 2.On the other hand, there are also models for chairs with a membrane-covered backrest known with support devices, which only to a barely perceptible Lead lordosis support, e.g. B. Wilkhahn Modus, Vitra Meda Chair 2.

Dieser unbefriedigende Stand der Technik resultiert aus folgender Problematik: Eine schaumstoffgepolsterte Rückenlehne erlaubt es, zwischen der Polsterplatte und dem Schaumstoff ein Kunststoffelement anzubringen, welches in der Höhe individuell verschiebbar ist und das Polster an der Stelle nach vorn verwölbt, an der es den Lordosenbereich des jeweiligen Benutzers abstützt. Das Polster selbst sorgt dafür, dass das Kunststoffelement nicht drückt. Schliesslich ist das Kunststoffelement ebenso überpolstert wie der Rest der Rückenlehne. Das Polster egalisiert den Aufbau weitgehend.This unsatisfactory state of the art results from the following problems: A foam-padded backrest allows between the upholstery plate and attach a plastic element to the foam, which is in height is individually slidable and the upholstery bulges forward at the point which supports the lordosis area of the respective user. The upholstery itself ensures that the plastic element does not press. After all, it is Plastic element just as upholstered as the rest of the backrest. The Upholstery largely equalizes the structure.

Eine membranbespannte Rückenlehne ohne Polsteraufbau stellt dagegen keine Überpolsterung des Kunststoffelementes dar. Daher drückt eine hinter oder vor der Membran angeordnete und unabhängig von der Membran im Rückenlehnenrahmen fest eingelagerte Vorrichtung zur Lordosenabstützung unangenehm im Rücken, auch dann, wenn sie weich oder umpolstert ist.On the other hand, a membrane-covered backrest without upholstery is not an option Upholstery of the plastic element. Therefore, pushes behind or forwards the membrane arranged and independent of the membrane in Fixed backrest frame for lordosis support uncomfortable in the back, even if it is soft or padded.

Ist die Lordosenabstützung dagegen nicht im Rückenlehnenrahmen eingelagert, sondern direkt in die Membran eingelagert, so wird sie sich nach hinten mit der Membran bewegen und ist daher in der Regel bezüglich einer Wirbelsäulenentlastung nahezu wirkungslos.If the lumbar support is not stored in the backrest frame, but stored directly in the membrane, so it will move backwards with the Membrane move and is therefore usually related to one Spinal relief almost ineffective.

Darstellung der ErfindungPresentation of the invention

Die Erfindung versucht, diese genannten Nachteile des bekannten Standes der Technik zu vermeiden. Ihr liegt die Aufgabe zugrunde, eine Vorrichtung zur Lordosenabstützung für einen Bürostuhl mit einer Rückenlehne, welche aus einem membranbespannten Rückenlehnenrahmen besteht, zu entwickeln, wobei die Lordosenabstützung sehr einfach höhenverstellbar sein soll, den Benutzer des Stuhles nicht drücken und gleichzeitig den Lordosenbereich individuell wirkungsvoll abstützen soll.The invention tries to overcome these disadvantages of the known state of the art Avoid technology. It is based on the task of a device for Lumbar support for an office chair with a backrest made of to develop a membrane-covered backrest frame, whereby the lumbar support should be very easy to adjust in height, the user of the Do not press the chair and at the same time individually the lumbar area should support effectively.

Erfindungsgemäß wird dies bei einer Vorrichtung zur Lordosenabstützung für einen Bürostuhl gemäß dem Oberbegriff des Patentanspruches 1 dadurch erreicht, daß die Vorrichtung sowohl höhenverstellbar als auch horizontal dehnbar ist. Die Lordosenkissenverstellung ist unabhängig von der Membran im Rückenlehnerahmen eingelagert, verfügt aber über eine ausreichende Elastizität, welche dazu führt, daß das Kissen nicht drückt.According to the invention, this is for a device for lordosis support an office chair according to the preamble of claim 1 thereby achieved that the device is both height adjustable and horizontally stretchable is. The lumbar cushion adjustment is independent of the membrane in the Backrest frame stored, but has sufficient elasticity, which leads to the pillow not pressing.

Es ist vorteilhaft, wenn die Vorrichtung aus folgenden Teilen besteht:

  • a) einem Mittelteil mit zwei vergleichsweise starren Trägerelementen, die über ein in der Mitte angeordnetes elastisches Element miteinander verbunden sind und außen jeweils einen seitlichen Führungssteg aufweisen, wobei die Führungsstege im Rückenlehnenrahmen verschiebbar angeordnet sind,
  • b) einem auf einer Polsterplatte befestigten Polsterkissen als zur Membran hin angeordnetem Vorderteil sowie
  • c) einer Kunststoffplatte als Rückteil, wobei
  • d) das Polsterkissen und die Kunststoffplatte mittels einer Clipverbindung verbunden sind und die Clipverbindung in Langlöchern der Trägerelemente geführt ist.
    • It is advantageous if the device consists of the following parts:
  • a) a middle part with two comparatively rigid support elements which are connected to one another via an elastic element arranged in the middle and each have a lateral guide web on the outside, the guide webs being arranged displaceably in the backrest frame,
  • b) a cushion pad attached to a cushion plate as a front part arranged towards the membrane and
  • c) a plastic plate as the back, wherein
  • d) the cushion and the plastic plate are connected by means of a clip connection and the clip connection is guided in elongated holes in the carrier elements.

    • Weiterhin ist es zweckmäßig, wenn das elastische Element ein Gummigurt ist. Dieser gibt bei einer Belastung ausreichend nach und bewirkt eine Längung der Trägerelemente, so daß die Vorrichtung, insbesondere das Polsterkissen, nach hinten auslenkt. Somit entsteht kein ungebührend hoher Gegendruck.Furthermore, it is expedient if the elastic element is a rubber belt. This yields sufficiently under load and causes elongation of the Carrier elements, so that the device, in particular the cushion, after deflects behind. This means that there is no unduly high back pressure.

    Außerdem ist es vorteilhaft, wenn die Führungsstege der Trägerelemente jeweils in einem Führungsschlitz des Rückenlehnenrahmens oder aber an einem Führungssteg des Rückenlehnenrahmens gelagert sind. Auf diese Weise ist eine einfache Führung und Höhenverstellung der Vorrichtung zur Lordosenabstützung möglich. Es erfolgt eine exakte Nachführung des Kissens entsprechend der Membran.It is also advantageous if the guide webs of the carrier elements in each case in a guide slot in the backrest frame or on one Guide bar of the backrest frame are stored. That way is one easy guidance and height adjustment of the device for lordosis support possible. There is an exact tracking of the pillow according to the Membrane.

    Kurze Beschreibung der ZeichnungBrief description of the drawing

    In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung dargestellt.Two exemplary embodiments of the invention are shown in the drawing.

    Es zeigen:

    Fig. 1
    eine Draufsicht auf die im Rückenlehnenrahmen eines Stuhles mit membranbespannter Rückenlehne eingelagerte erfindungsgemäße Vorrichtung in einer ersten Ausführungsvariante;
    Fig. 2
    einen Schnitt durch die erfindungsgemäßen Vorrichtung entlang der Linie II-II in Fig. 1;
    Fig. 3
    einen Schnitt analog zu Fig. 2 bei einer zweiten Ausführungsvariante der Erfindung.
    Show it:
    Fig. 1
    a plan view of the device according to the invention embedded in the backrest frame of a chair with membrane-covered backrest in a first embodiment;
    Fig. 2
    a section through the device according to the invention along the line II-II in Fig. 1;
    Fig. 3
    a section analogous to FIG. 2 in a second embodiment of the invention.

    Es sind nur die für das Verständnis der Erfindung wesentlichen Elemente gezeigt. Gleiche Elemente sind in den verschiedenen Figuren mit jeweils gleichen Bezugszeichen versehen.Only the elements essential for understanding the invention are shown. The same elements are the same in the different figures Provide reference numerals.

    Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

    Nachfolgend wird die Erfindung anhand von zwei Ausführungsbeispielen und der Figuren 1 bis 3 näher erläutert.The invention is described below using two exemplary embodiments and Figures 1 to 3 explained in more detail.

    Fig. 1 zeigt in einer Draufsicht auf die im Rückenlehnenrahmen (1) eines Bürostuhles mit membranbespannter Rückenlehne eingelagerte erfindungsgemäße Vorrichtung in einer ersten Ausführungsvariante. Fig. 2 zeigt den dazugehörenden Schnitt entlang der Linie II-II.Fig. 1 shows a plan view of the one in the backrest frame (1) Office chairs with a membrane-covered backrest Device according to the invention in a first embodiment. Fig. 2 shows the corresponding section along the line II-II.

    Die Rückenlehne des Stuhles besteht aus einem Rückenlehnenrahmen 1, welcher mit einer Membran 2 bespannt ist. Die Membran 2 ist mittels Membrankeder 3 im Rückenlehnerahmen 1 befestigt. Die erfindungsgemäße Vorrichtung zur Lordosenabstützung ist hinter der Membran 2 angeordnet und unabhängig von der Membran 2 im Rückenlehnenrahmen 1 gelagert.The backrest of the chair consists of a backrest frame 1, which is covered with a membrane 2. The membrane 2 is by means of membrane 3 in Backrest frame 1 attached. The inventive device for Lumbar support is arranged behind the membrane 2 and independent of the membrane 2 stored in the backrest frame 1.

    Sie besteht im wesentlichen aus drei Teilen, und zwar aus einem vorderseitig, d. h. zur Membran 2 hin angeordneten Vorderteil, welches von einem auf einer Polsterplatte 9 befestigtem Polsterkissen 8 gebildet wird, und aus einem aus einer Kunststoffplatte 10 bestehenden Rückteil sowie aus einem dazwischen angeordneten Mittelteil. Das Mittelteil verfügt über zwei relativ starre Trägerelemente 4 aus Kunststoff, die in der Mitte durch einen elastischen Gummigurt 5 miteinander verbunden sind. Die Trägerelemente 4 weisen jeweils an den dem Gummigurt 5 zugewandten Seiten ein Langloch 12 auf. An den ändern Seiten (außen) verfügen die Trägerelemente 4 über Führungsstege 6., über die sie in einem Führungsschlitz 7 des Rückenlehnenrahmens 1 geführt werden. Somit ist eine einfache Höhenverstellung der Vorrichtung realisierbar. Die Spannung der Membran 2 sorgt dafür daß die Führungsstege 6 nicht ausschnappen können.It consists essentially of three parts, namely one on the front, i. H. to the membrane 2 arranged front part, which from one to one Upholstery pad 9 is formed cushion pad 8, and from one of a Plastic plate 10 existing back and one in between arranged middle part. The middle section has two relatively rigid Carrier elements 4 made of plastic, which in the middle by an elastic Rubber belt 5 are interconnected. The carrier elements 4 each have an elongated hole 12 on the sides facing the rubber belt 5. To the other sides (outside), the carrier elements 4 have guide webs 6. over which they are guided in a guide slot 7 of the backrest frame 1 become. A simple height adjustment of the device can thus be implemented. The Tension of the membrane 2 ensures that the guide webs 6 are not can snap out.

    Die Polsterplatte 9 mit dem Polsterkissen 8 und die Kunststoffplatte 10 sind miteinander über zwei Clipverbindungen 11 verbunden. Die Clipverbindungen 11 sind jeweils in den Langlöchern 12 der Trägerelemente 4 geführt, so daß auf diese Weise alle drei Hauptteile der Lordosenabstützung miteinander verbunden sind. Die Führung der Clipverbindung 11 in den Langlöchern 12 ermöglich es, daß die Polsterplatte 9 mit dem Polsterkissen 8 und die Kunststoffplatte 10 auf den Trägerelementen 4 horizontal verschiebbar sind.The cushion plate 9 with the cushion cushion 8 and the plastic plate 10 are connected to one another via two clip connections 11. The clip connections 11 are each guided in the elongated holes 12 of the carrier elements 4, so that on this way all three main parts of the lumbar support are interconnected are. The leadership of the clip connection 11 in the slots 12 allows that the cushion plate 9 with the cushion pad 8 and the plastic plate 10 on the Carrier elements 4 are horizontally displaceable.

    Diese Konstruktion gewährleistet es, daß die Lordosenkissenverstellung ebenso wie die Membran 2 nach hinten auslenken kann, wenn sich der Benutzer nach hinten lehnt und Druck auf die Membran ausübt. Der Gummigurt 5 gibt nach und bewirkt damit eine Längung der Trägerelement, was zur Folge hat, daß das Polsterkissen 8 nach hinten auslenkt.This construction ensures that the lumbar cushion adjustment as well how the membrane 2 can deflect to the rear when the user is following leans back and exerts pressure on the membrane. The rubber belt 5 gives way causes an elongation of the carrier element, which has the consequence that the Upholstery cushion 8 deflects backwards.

    Der Vorteil der Erfindung besteht insbesondere darin, daß über die Elastizität des Gummigurtes und die Stärke und Dichte des Polsteraufbaus die Wirkungsstärke - der Druck- der Vorrichtung exakt abgestimmt werden kann. Das Polsterkissen ist leicht auswechselbar und durch den Einsatz unterschiedlichen Spannmaterials wird eine individuelle Vorspannung realisiert. The advantage of the invention is, in particular, that the elasticity of the Rubber belt and the strength and density of the cushion structure the effectiveness - The pressure of the device can be precisely matched. The cushion is easily exchangeable and through the use of different clamping materials an individual preload is realized.

    In Fig. 3 ist ein weiteres Ausführungsbeispiel dargestellt. Es unterscheidet sich vom ersten Ausführungsbeispiel lediglich dadurch, daß anstelle des Führungsschlitzes im Rückenlehnenrahmen 1 ein Führungssteg 13 am Rückenlehnenrahmen 1 angeordnet ist. Die Führungsstege 6 der Trägerelemente 4 werden an diesen Führungsstegen 13 geführt. Die Spannung der Membran 2 sorgt dafür, daß die Führungsstege 6 nicht ausschnappen können.3 shows a further exemplary embodiment. It differs from the first embodiment only in that instead of Guide slot in the backrest frame 1, a guide web 13 on Backrest frame 1 is arranged. The guide webs 6 of the support elements 4 are guided on these guide webs 13. The tension of the membrane 2 ensures that the guide webs 6 can not snap out.

    Selbstverständlich ist die Erfindung nicht auf das beschriebene Ausführungsbeispiel beschränkt. Of course, the invention is not limited to that described Embodiment limited.

    BezugszeichenlisteLIST OF REFERENCE NUMBERS

    11
    RückenlehnenrahmenBackrest frame
    22
    Membranmembrane
    33
    MembrankederMembrankeder
    44
    Trägerelementsupport element
    55
    Elastisches Element, z. B. GummigurtElastic element, e.g. B. rubber belt
    66
    Führungssteg von Pos. 4Guide bar from item 4
    77
    Führungsschlitz in Pos. 1Guide slot in item 1
    88th
    Polsterkissenpillow
    99
    Polsterplattepad plate
    1010
    KunststoffplattePlastic plate
    1111
    Clipverbindungclip connection
    1212
    LanglochLong hole
    1313
    Führungssteg von Pos. 1Guide bar from item 1

    Claims (5)

    Vorrichtung zur Lordosenabstützung für einen Bürostuhl mit einer Rückenlehne, welche aus einem mit einer Membran (2) bespannten Rückenlehnenrahmen (1) besteht, wobei die Vorrichtung hinter der Membran (2) angeordnet und unabhängig von der Membran (2) im Rückenlehnenrahmen (1) gelagert ist, dadurch gekennzeichnet, daß die Vorrichtung sowohl höhenverstellbar als auch horizontal dehnbar ist.Device for lumbar support for an office chair with a backrest, which consists of a backrest frame (1) covered with a membrane (2), the device being arranged behind the membrane (2) and stored independently of the membrane (2) in the backrest frame (1) is characterized in that the device is both adjustable in height and horizontally stretchable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie aus folgenden Teilen besteht: a) einem Mittelteil mit zwei starren Trägerelementen (4), die über ein in der Mitte angeordnetes elastisches Element (5) miteinander verbunden sind und aussen jeweils einen seitlichen Führungssteg (6) aufweisen, wobei die Führungsstege (6) im Rückenlehnenrahmen (1) verschiebbar angeordnet sind, b) einem auf einer Polsterplatte (9) befestigten Polsterkissen (8) als zur Membran (2) hin angeordnetem Vorderteil sowie c) einer Kunststoffplatte (10) als Rückteil, wobei d) das Polsterkissen (8) und die Kunststoffplatte (10) mittels einer Clipverbindung (11) verbunden sind und die Clipverbindung (11) in Langlöchern (12) der Trägerelemente (4) geführt ist. Device according to claim 1, characterized in that it consists of the following parts: a) a central part with two rigid support elements (4) which are connected to one another via an elastic element (5) arranged in the middle and each have a lateral guide web (6) on the outside, the guide webs (6) being displaceable in the backrest frame (1) are arranged b) a cushion cushion (8) attached to a cushion plate (9) as a front part arranged towards the membrane (2) and c) a plastic plate (10) as a rear part, wherein d) the cushion cushion (8) and the plastic plate (10) are connected by means of a clip connection (11) and the clip connection (11) is guided in elongated holes (12) of the carrier elements (4). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das elastische Element (5) ein Gummigurt ist.Device according to claim 2, characterized in that the elastic element (5) is a rubber belt. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Führungsstege (6) der Trägerelemente (4) jeweils in einem Führungsschlitz (7) des Rückenlehnenrahmens (1) verschiebbar angeordnet sind.Apparatus according to claim 2, characterized in that the guide webs (6) of the carrier elements (4) are each slidably arranged in a guide slot (7) of the backrest frame (1). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Führungsstege (6) der Trägerelemente (4) jeweils an einem Führungssteg (13) des Rückenlehnenrahmens (1) verschiebbar angeordnet sind.Apparatus according to claim 2, characterized in that the guide webs (6) of the carrier elements (4) are each slidably arranged on a guide web (13) of the backrest frame (1).
    EP02009088A 2001-05-01 2002-04-24 Lumbar support Expired - Lifetime EP1254616B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE10121207 2001-05-01
    DE10121207A DE10121207A1 (en) 2001-05-01 2001-05-01 Device for lordosis support
    US10/137,335 US6575530B1 (en) 2001-05-01 2002-05-03 Device for lumbar support

    Publications (3)

    Publication Number Publication Date
    EP1254616A2 true EP1254616A2 (en) 2002-11-06
    EP1254616A3 EP1254616A3 (en) 2004-01-14
    EP1254616B1 EP1254616B1 (en) 2005-06-08

    Family

    ID=27758382

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02009088A Expired - Lifetime EP1254616B1 (en) 2001-05-01 2002-04-24 Lumbar support

    Country Status (7)

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    US (1) US6575530B1 (en)
    EP (1) EP1254616B1 (en)
    AT (1) ATE297149T1 (en)
    CA (1) CA2383488C (en)
    DE (2) DE10121207A1 (en)
    ES (1) ES2243617T3 (en)
    MX (1) MXPA02004338A (en)

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    Also Published As

    Publication number Publication date
    EP1254616A3 (en) 2004-01-14
    ES2243617T3 (en) 2005-12-01
    US6575530B1 (en) 2003-06-10
    DE50203312D1 (en) 2005-07-14
    ATE297149T1 (en) 2005-06-15
    CA2383488A1 (en) 2002-11-01
    CA2383488C (en) 2009-02-03
    MXPA02004338A (en) 2002-11-14
    DE10121207A1 (en) 2002-11-07
    EP1254616B1 (en) 2005-06-08

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