EP1647210A1 - Height-adjustable lumbar support - Google Patents
Height-adjustable lumbar support Download PDFInfo
- Publication number
- EP1647210A1 EP1647210A1 EP05021558A EP05021558A EP1647210A1 EP 1647210 A1 EP1647210 A1 EP 1647210A1 EP 05021558 A EP05021558 A EP 05021558A EP 05021558 A EP05021558 A EP 05021558A EP 1647210 A1 EP1647210 A1 EP 1647210A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- lumbar support
- support according
- lordosenbrücke
- backrest
- 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
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Classifications
-
- 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 present invention relates to a lumbar support integrated in a backrest with a height-adjustable lordosis bridge, as used in particular in office chairs.
- the Lordosen Kunststoff here has the task to cause a forward, more or more agile pronounced curvature in the backrest.
- Such lumbar supports are already known in various versions. In the more elaborate, as they are mainly used in car seats for the application, the height adjustment via a gear or a cable or Drahtzugsystem. About this adjustment is also a fixation of the selected height.
- the advantage of these designs consists mainly in their operability in sitting from a user still easily accessible by hand. Their disadvantage, however, lies in the great technical effort with usually many items.
- the height adjustment is done by moving the lumbar bridge to mostly laterally arranged buttons, handles or levers.
- buttons, handles or levers have a relatively simple structure with few parts and are also easy to handle;
- the lordosis bridge is usually kept at their respective height only by surface friction. Under load these brackets tend to slip, so that the user must readjust the height of the lumbar bridge again and again.
- the height adjustment is made simply by high or Nederschieben the Lordosen Kunststoff on the sliding pin.
- the fixing element is pushed over the slotted guide and thereby elastically deformed at the height of the projections. At the level of the recesses, it can expand in contrast.
- the fixing element and with it the Lordosen Kunststoff at the height of the recesses each held frictionally, without the need for any further measures would be required. From the height positions corresponding to the recesses, the Lordosen Kunststoff can also immediately be moved again without the need for a locking or the like would have to be solved.
- the frictional fixation in the region of the recesses should be such that a smooth movement of the lumbar bridge is possible without it comes by the usual Ansitztik or by occurring in use displacement movements on the back pad to an unintentional adjustment of the Lordosen Kunststoff.
- the slotted guide is designed as a slot guide with lateral constrictions and extensions.
- the fixing element may be a ring element pushed over the displacement pin, preferably of an elastically deformable plastic.
- the slotted guide is formed in a guide flange which can be inserted into a support structure of the backrest and is thus characterized, for example, by as a molded part, regardless of the backrest in the rest produced.
- the guide flange is further preferably provided with a displacement guide for the lumbar bridge, in particular in the form of at least one guide rib.
- the Lordosenmaschine can advantageously have a dimensionally stable base plate on which the rear side of the sliding pin and the front side a buckle element are attached.
- the base plate is provided at the rear with a complementary configuration to the mentioned displacement guide, in particular with at least one guide groove.
- lordosis membrane and Lordosendämpfelement can be a soft and well yielding support form realize that keeps its shape under load apart from their curvature always and visually always and even with thin back padding offers an attractive appearance.
- the lumbar support supporting the lumbar membrane brings them back like a shock again and again in their original position.
- the lumbar support according to the invention can be covered on the front by a padding and e.g. be integrated into the backrest of an office chair.
- Fig. 1 denotes a back shell only partially shown the backrest, for example, an office chair.
- the back shell 1 On its front, i. Leaning side is the back shell 1 provided with a relatively thin padding 2 and on its back with a coating 3.
- the back shell forms part of the support structure of the backrest.
- the lumbar support initially comprises a guide flange 4, which is inserted into a corresponding recess in the back shell 1 and fixed therein, for example, by screwing.
- the guide flange 4 designed as a slot guide with lateral constrictions and extensions slotted guide 5 is present.
- the constrictions form projections and the extensions recesses of the slotted guide.
- a connected from the rear of the backrest connected sliding pin 6 passes through the slotted guide 5 and is slidable along the slotted guide.
- the front end of the shift pin 6 is connected to the already mentioned Lordosenmaschine 7.
- This is formed by a dimensionally stable base plate 8, a lumbar membrane 9 and a Lordosendämpfelement 10.
- the latter consists e.g. made of a soft, elastically deformable foam material.
- the lumbar membrane 9 is approximately rectangular and is held in the base plate 8 in each case along its two longitudinal edges so that it has a curvature over the Lordosendämpfelement 10. However, in that the lumbar membrane support is at least along one of its longitudinal edges executed with play, lumbar membrane 9 can flatten under the effect of a Ansitztiks. The elastically compressed Lordosendämpfelement 10 bulges the lumbar membrane 9 after elimination of Ansitztikes again.
- the guide flange 4 On its front side, the guide flange 4 is provided with guide ribs 11 which cooperate with corresponding guide grooves 12 in the base plate 8 of the lumbar bridge and guide the lumbar bridge during its displacement.
- a height fixation of the Lordosenmaschine 7 in a variety of positions along its defined by the slide or slot guide 5 displacement results from an elastically deformable fixing 13 in the form of a pushed over the sliding pin 6 and arranged in the slot guide ring element.
- this ring element When moving this ring element is elastically deformed at the height of the projections or constrictions. At the level of the recesses or extensions, it can expand in contrast. By this characteristic becomes the ring element and held with her the Lordosen Kunststoff at the height of the recesses each frictionally.
- Fig. 1 With 14 in Fig. 1 is still a cap referred to, which is fixed by means of fastening screws 15.
Abstract
Description
Die vorliegende Erfindung betrifft eine in einer Rückenlehne integrierte Lordosenstütze mit höhenverstellbarer Lordosenbrücke, wie sie insbesondere bei Bürostühlen eingesetzt wird. Der Lordosenbrücke kommt hierbei die Aufgabe zu, eine nach vorn gerichtete, mehr oder wendiger ausgeprägte Wölbung in der Rückenlehne zu verursachen.The present invention relates to a lumbar support integrated in a backrest with a height-adjustable lordosis bridge, as used in particular in office chairs. The Lordosenbrücke here has the task to cause a forward, more or more agile pronounced curvature in the backrest.
Derartige Lordosenstützen sind in verschiedenen Ausführungen bereits bekannt. Bei den aufwendiger ausgebildeten, wie sie vor allem in Autositzen zur Anwendung kommen, erfolgt die Höhenverstellung über ein Getriebe oder ein Seil- bzw. Drahtzugsystem. Über diese Verstellung erfolgt auch eine Fixierung der gewählten Höhe. Der Vorteil dieser Ausführungen besteht vor allem in ihrer Bedienbarkeit im Sitzen von einer durch den Nutzer mit der Hand noch gut erreichbaren Stelle aus. Ihr Nachteil liegt dagegen in dem grossen technischen Aufwand mit meist vielen Einzelteilen.Such lumbar supports are already known in various versions. In the more elaborate, as they are mainly used in car seats for the application, the height adjustment via a gear or a cable or Drahtzugsystem. About this adjustment is also a fixation of the selected height. The advantage of these designs consists mainly in their operability in sitting from a user still easily accessible by hand. Their disadvantage, however, lies in the great technical effort with usually many items.
Bei einfacher ausgebildeten Ausführungsformen erfolgt die Höhenverstellung durch Verschieben der Lordosenbrücke an meist seitlich angeordneten Knöpfen, Griffen oder Hebeln. Diese Ausbildungen haben zwar einen relativ einfachen Aufbau mit wenig Teilen und sind auch einfach handhabbar; die Lordosenbrücke wird bei ihnen jedoch meist nur durch eine Flächenreibung auf der jeweils eingestellten Höhe gehalten. Unter Belastung neigen diese Halterungen zum Verrutschen, so dass der Nutzer die Lordosenbrücke in ihrer Höhe immer wieder nachjustieren muss.In simpler embodiments, the height adjustment is done by moving the lumbar bridge to mostly laterally arranged buttons, handles or levers. Although these designs have a relatively simple structure with few parts and are also easy to handle; However, the lordosis bridge is usually kept at their respective height only by surface friction. Under load these brackets tend to slip, so that the user must readjust the height of the lumbar bridge again and again.
Bei allen bekannten Lösungen wird eine Ansitzdämpfung nur über die meist nur sehr Nachgiebigkeit des für die Lordosenbrücke verwendeten Materials sowie über relativ dicke Polster vor der Lordosenbrücke realisiert. Wenn aus Design- oder Platzgründen z.B. ein dünnes Rückenpolster gefordert wird, drücken die Lordosenbrücken häufig unangenehm in den Rücken.In all known solutions, a Ansitzdämpfung is realized only on the mostly very compliancy of the material used for the Lordosenbrücke and relatively thick padding before Lordosenbrücke. If, for design or space reasons, e.g. a thin back pad is required, the Lordosenbrücken often uncomfortable in the back.
Aufgabe der Erfindung ist es, eine in einer Rückenlehne integrierte Lordosenstütze mit höhenverstellbarer Lordosenbrücke anzugeben, bei welcher
- die Höhenverstellung einfach ausführbar ist,
- eine einmal eingestellte Höhe ausreichend sicher gehalten wird, ohne dass hierzu eine zusätzliche Fixierung z.B. durch Festschrauben oder Betätigen eines besonderen Fixierungselements nötig ist, die zum Verstellen ja auch wieder gelöst werden müsste,
- eine Ansitzdämpfung einfach realisierbar ist, und
- der Herstellungs- und Montageaufwand durch möglichst wenige und einfache Teile und dadurch auch die Herstellungskosten möglichst klein sind.
- the height adjustment is easy to carry out,
- Once set a height is kept sufficiently secure, without the need for additional fixation, for example, by screwing or pressing a special fixing element is needed, which would indeed be solved for adjusting so again,
- An Ansitzdämpfung is easy to implement, and
- the manufacturing and assembly costs by as few and simple parts and thereby also the production costs are as small as possible.
Diese Aufgabe wir erfindungsgemäss gelöst durch die in den Patentansprüchen angegeben Merkmale. Der Kern der Erfindung besteht demnach darin, dass ein von der Rückseite der Rückenlehne her zugänglicher und mit der Lordosenbrücke verbundener Verschiebestift eine mit Vor- und Rücksprüngen versehene Kulissenführung in der Rückenlehne durchgreift und entlang dieser Kulissenführung mittels eines durch die Vorsprünge elastisch deformierten Fixierelements auf Höhe der Rücksprünge kraftschlüssig fixierbar ist.This object we achieved according to the invention by the features indicated in the claims. The According to the essence of the invention consists in that a more accessible from the back of the backrest ago and connected to the lumbar bridge displacement pin engages with a back and forth slotted link guide in the backrest and along this link guide means of a resiliently deformed by the projections fixing at the level of Recesses can be fixed non-positively.
Die Höhenverstellung wird einfach durch Hoch- oder Nlederschieben der Lordosenbrücke am Verschiebestift getätigt. Beim Verschiebevorgang wird das Fixierelement über die Kulissenführung geschoben und dabei auf Höhe der Vorsprünge jeweils elastisch deformiert. Auf Höhe der Rücksprünge kann es demgegenüber expandieren. Durch diese Charakteristik wird das Fixierelement und mit ihr die Lordosenbrücke auf Höhe der Rücksprünge jeweils kraftschlüssig gehalten, ohne dass hierzu irgendwelche weiteren Massnahmen erforderlich wären. Aus den den Rücksprüngen entsprechenden Höhenpositionen kann die Lordosenbrücke auch sofort wieder verschoben werden, ohne das hierzu erst eine Arretierung oder dergleichen gelöst werden müsste.The height adjustment is made simply by high or Nederschieben the Lordosenbrücke on the sliding pin. During the sliding operation, the fixing element is pushed over the slotted guide and thereby elastically deformed at the height of the projections. At the level of the recesses, it can expand in contrast. By this characteristic, the fixing element and with it the Lordosenbrücke at the height of the recesses each held frictionally, without the need for any further measures would be required. From the height positions corresponding to the recesses, the Lordosenbrücke can also immediately be moved again without the need for a locking or the like would have to be solved.
Die kraftschlüssige Fixierung im Bereich der Rücksprünge sollte so bemessen sein, dass ein leichtgängiges Verschieben der Lordosenbrücke möglich ist, ohne dass es durch den üblichen Ansitzdruck oder durch im Gebrauch auftretende Verschiebebewegungen am Rückenpolster zu einem unbeabsichtigten Verstellen der Lordosenbrücke kommt.The frictional fixation in the region of the recesses should be such that a smooth movement of the lumbar bridge is possible without it comes by the usual Ansitzdruck or by occurring in use displacement movements on the back pad to an unintentional adjustment of the Lordosenbrücke.
Gemäss einer bevorzugten Ausführungsform der Erfindung ist die Kulissenführung als Schlitzführung mit seitlichen Verengungen und Erweiterungen ausgebildet.According to a preferred embodiment of the invention, the slotted guide is designed as a slot guide with lateral constrictions and extensions.
Das Fixierelement kann ein über den Verschiebestift geschobenes Ringelement, vorzugsweise aus einem elastisch deformierbaren Kunststoff sein.The fixing element may be a ring element pushed over the displacement pin, preferably of an elastically deformable plastic.
Mit Vorteil wird die Kulissenführung in einem in eine Stützkonstruktion der Rückenlehne einsetzbaren Führungsflansch ausgebildet und ist dadurch z.B. als Formspritzteil unabhängig von der Rückenlehne im übrigen herstellbar.Advantageously, the slotted guide is formed in a guide flange which can be inserted into a support structure of the backrest and is thus characterized, for example, by as a molded part, regardless of the backrest in the rest produced.
Der Führungsflansch ist weiter bevorzugt mit einer Verschiebeführung für die Lordosenbrücke, insbesondere in Form von mindestens einer Führungsrippe, versehen.The guide flange is further preferably provided with a displacement guide for the lumbar bridge, in particular in the form of at least one guide rib.
Die Lordosenbrücke kann mit Vorteil eine formstabile Grundplatte aufweisen, an welcher rückseitig der Verschiebestift und vorderseitig ein Wölbelement befestigt sind. Hierbei kann dann vorgesehen sein, dass die Grundplatte rückseitig mit einer zu der erwähnten Verschiebeführung komplementären Ausbildung, insbesondere mit mindestens einer Führungsnut, versehen ist.The Lordosenbrücke can advantageously have a dimensionally stable base plate on which the rear side of the sliding pin and the front side a buckle element are attached. In this case, it may then be provided that the base plate is provided at the rear with a complementary configuration to the mentioned displacement guide, in particular with at least one guide groove.
Gemäss einer weiteren bevorzugten Ausführungsform der Erfindung mit zusätzlicher Ansitzdämpfung zur Vermeidung eines unangenehmen Drückens im Rücken umfasst das erwähnte Wölbelement der Lordosenbrücke eine biegsame, durch randseitige Halterungen und ein Lordosendämpfelement in einer gewölbten Stellung gehaltene, unter Belastung durch Ansitzdruck sich abflachende Lordosenmembran.According to a further preferred embodiment of the invention with additional Ansitzdämpfung to avoid an unpleasant pressure in the back comprises the aforementioned arching the Lordosenbrücke a flexible, held by edge-side brackets and a Lordosendämpfelement in a curved position, under stress by Ansitzdruck flattening Lordosenmembran.
Durch die Kombination aus Lordosenmembran und Lordosendämpfelement lässt sich eine weiche und gut nachgiebige Stützform realisieren, welche ihre Form bei Belastung abgesehen von ihrer Wölbung stets behält und optisch stets sowie auch bei dünner Rückenpolsterung ein ansprechendes Erscheinungsbild bietet. Das die Lordosenmembran unterstützende Dämpfelement bringt diese wie ein Stossdämpfer immer wieder in ihre Ursprungslage zurück.The combination of lordosis membrane and Lordosendämpfelement can be a soft and well yielding support form realize that keeps its shape under load apart from their curvature always and visually always and even with thin back padding offers an attractive appearance. The lumbar support supporting the lumbar membrane brings them back like a shock again and again in their original position.
In an sich üblicher Weise kann die erfindungsgemässe Lordosenstütze vorderseitig von einer Polsterung überdeckt und z.B. in der Rückenlehne eine Bürostuhls integriert sein.In a conventional manner, the lumbar support according to the invention can be covered on the front by a padding and e.g. be integrated into the backrest of an office chair.
Die Erfindung soll nachfolgend anhand von Ausführungsbeispielen im Zusammenhang mit der Zeichnung näher erläutert werden. Es zeigen:
- Fig. 1
- eine erfindungsgemässe Lordosenbrücke in einem Vertikalschnitt entlang der Mittelachse einer Rückenlehne; und
- Fig. 2
- eine perspektivische Explosionsdarstellung dieser Lordosenbrücke.
- Fig. 1
- an inventive Lordosenbrücke in a vertical section along the central axis of a backrest; and
- Fig. 2
- an exploded perspective view of this Lordosenbrücke.
In Fig. 1 bezeichnet 1 eine nur teilweise dargestellte Rückenschale der Rückenlehne beispielsweise eines Bürostuhls. Auf ihrer Vorder- d.h. Anlehnseite ist die Rückenschale 1 mit einer verhältnismässig dünnen Polsterung 2 versehen und auf ihrer Rückseite mit einem Überzug 3. Die Rückenschale bildet einen Teil der Stützkonstruktion der Rückenlehne.In Fig. 1, 1 denotes a back shell only partially shown the backrest, for example, an office chair. On its front, i. Leaning side is the
In eine Öffnung der Rückenschale 1 eingesetzt ist eine Lordosenstütze nach der Erfindung mit höhenverstellbarer Lordosenbrücke. Die Lordosenstütze umfasst zunächst einen Führungsflansch 4, der in eine entsprechende Ausnehmung in der Rückenschale 1 eingesetzt und darin z.B. durch Anschrauben befestigt ist.Inserted into an opening of the
In dem Führungsflansch 4 ist eine als Schlitzführung mit seitlichen Verengungen und Erweiterungen ausgebildete Kulissenführung 5 vorhanden. Die Verengungen bilden Vorsprünge und die Erweiterungen Rücksprünge der Kulissenführung.In the guide flange 4 designed as a slot guide with lateral constrictions and extensions slotted
Ein von der Rückseite der Rückenlehne her zugänglicher verbundener Verschiebestift 6 durchgreift die Kulissenführung 5 und ist entlang der Kulissenführung verschiebbar.A connected from the rear of the backrest connected sliding
Das vordere Ende des Verschiebestiftes 6 ist mit der bereits erwähnten Lordosenbrücke 7 verbunden. Diese wird gebildet durch eine formstabile Grundplatte 8, eine Lordosenmembrane 9 und ein Lordosendämpfelement 10. Letzeres besteht z.B. aus einem weichen, elastisch deformierbaren Schaummaterial.The front end of the
Die Lordosenmembran 9 ist etwa rechteckig und wird in der Grundplatte 8 jeweils entlang ihrer beiden Längskanten so gehalten, dass sie über dem Lordosendämpfelement 10 eine Wölbung aufweist. lndem die Halterung der Lordosenmembran zumindest entlang einer ihrer Längskanten jedoch mit Spiel ausgeführt ist, kann sich Lordosenmembran 9 unter der Wirkung eines Ansitzdrucks abflachen. Das dabei elastisch komprimierte Lordosendämpfelement 10 wölbt die Lordosenmembran 9 nach Wegfall des Ansitzdruckes wieder auf.The
Auf seiner Vorderseite ist der Führungsflansch 4 mit Führungsrippen 11 versehen, welche mit entsprechenden Führungsnuten 12 in der Grundplatte 8 der Lordosenbrücke zusammenwirken und die Lordosenbrücke bei ihrer Verschiebung führen.On its front side, the guide flange 4 is provided with
Eine Höhenfixierung der Lordosenbrücke 7 in einer Vielzahl von Positionen entlang ihres durch die Kulissen- bzw. Schlitzführung 5 definierten Verschiebeweges ergibt sich durch ein elastisch deformierbares Fixierelement 13 in Form eines ein über den Verschiebestift 6 geschobenen und in der Schlitzführung angeordneten Ringelements.A height fixation of the
Beim Verschieben wird dieses Ringelement auf Höhe der Vorsprünge bzw. Verengungen jeweils elastisch deformiert. Auf Höhe der Rücksprünge bzw. Erweiterungen kann es demgegenüber expandieren. Durch diese Charakteristik wird das Ringelement und mit ihr die Lordosenbrücke auf Höhe der Rücksprünge jeweils kraftschlüssig gehalten.When moving this ring element is elastically deformed at the height of the projections or constrictions. At the level of the recesses or extensions, it can expand in contrast. By this characteristic becomes the ring element and held with her the Lordosenbrücke at the height of the recesses each frictionally.
Mit 14 ist in Fig. 1 noch eine Abdeckkappe bezeichnet, die mittels Befestigungsschrauben 15 fixiert ist.With 14 in Fig. 1 is still a cap referred to, which is fixed by means of fastening screws 15.
- 11
- Rückenschaleback shell
- 22
- Polsterungupholstery
- 33
- Überzugcoating
- 44
- Führungsflansch 4Guide flange 4
- 55
- Kulissenführunglink guide
- 66
- Verschiebestiftshifter pin
- 77
- LordosenbrückeLordosenbrücke
- 88th
- Grundplattebaseplate
- 99
- LordosenmembraneLordosenmembrane
- 1010
- LordosendämpfelementLordosendämpfelement
- 1111
- Führungsrippenguide ribs
- 1212
- Führungsnutenguide
- 1313
- Fixierelementfixing
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004050848A DE102004050848B4 (en) | 2004-10-18 | 2004-10-18 | Height-adjustable lumbar support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1647210A1 true EP1647210A1 (en) | 2006-04-19 |
| EP1647210B1 EP1647210B1 (en) | 2008-12-24 |
Family
ID=35718929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05021558A Not-in-force EP1647210B1 (en) | 2004-10-18 | 2005-10-01 | Backrest with height-adjustable lumbar support |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1647210B1 (en) |
| AT (1) | ATE418281T1 (en) |
| DE (2) | DE102004050848B4 (en) |
| ES (1) | ES2320462T3 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975632A (en) | 1998-09-02 | 1999-11-02 | Ginat; Jonathan | Chair having a backrest with an adjustable contour |
| US6260921B1 (en) | 1998-06-05 | 2001-07-17 | Teknion Furniture Systems, Inc. | Lumbar support adjustment mechanism |
| DE10014164A1 (en) * | 2000-03-23 | 2001-10-04 | Haworth Bueroeinrichtung Gmbh | Chair with lumbar support; has height-adjustable padded back rest with lordotic part that can be moved in guide slots in padding support and operated by handle accessible from rear of back rest |
| US6419318B1 (en) * | 2000-04-11 | 2002-07-16 | United Chair Company, Inc. | Chair having an adjustable lumbar mechanism |
| US20040136624A1 (en) * | 2002-10-15 | 2004-07-15 | Bock 1 Gmbh & Co. | Linear sliding guide, in particular for inter-adjustable components of office chairs |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2451745A1 (en) * | 1974-10-31 | 1976-05-06 | Floetotto | Chair with seat and integral body adaptable backrest - has vertically displaceable resilient pressure member inside base area of backrest |
-
2004
- 2004-10-18 DE DE102004050848A patent/DE102004050848B4/en not_active Expired - Fee Related
-
2005
- 2005-10-01 EP EP05021558A patent/EP1647210B1/en not_active Not-in-force
- 2005-10-01 DE DE502005006315T patent/DE502005006315D1/en not_active Expired - Fee Related
- 2005-10-01 AT AT05021558T patent/ATE418281T1/en not_active IP Right Cessation
- 2005-10-01 ES ES05021558T patent/ES2320462T3/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260921B1 (en) | 1998-06-05 | 2001-07-17 | Teknion Furniture Systems, Inc. | Lumbar support adjustment mechanism |
| US5975632A (en) | 1998-09-02 | 1999-11-02 | Ginat; Jonathan | Chair having a backrest with an adjustable contour |
| DE10014164A1 (en) * | 2000-03-23 | 2001-10-04 | Haworth Bueroeinrichtung Gmbh | Chair with lumbar support; has height-adjustable padded back rest with lordotic part that can be moved in guide slots in padding support and operated by handle accessible from rear of back rest |
| US6419318B1 (en) * | 2000-04-11 | 2002-07-16 | United Chair Company, Inc. | Chair having an adjustable lumbar mechanism |
| US20040136624A1 (en) * | 2002-10-15 | 2004-07-15 | Bock 1 Gmbh & Co. | Linear sliding guide, in particular for inter-adjustable components of office chairs |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE418281T1 (en) | 2009-01-15 |
| DE502005006315D1 (en) | 2009-02-05 |
| DE102004050848B4 (en) | 2006-11-16 |
| DE102004050848A1 (en) | 2006-04-20 |
| ES2320462T3 (en) | 2009-05-22 |
| EP1647210B1 (en) | 2008-12-24 |
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