EP1872689B1 - Chair with automatically adjustable lumbar support - Google Patents

Chair with automatically adjustable lumbar support Download PDF

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Publication number
EP1872689B1
EP1872689B1 EP06022177A EP06022177A EP1872689B1 EP 1872689 B1 EP1872689 B1 EP 1872689B1 EP 06022177 A EP06022177 A EP 06022177A EP 06022177 A EP06022177 A EP 06022177A EP 1872689 B1 EP1872689 B1 EP 1872689B1
Authority
EP
European Patent Office
Prior art keywords
backrest
lumbar support
support
chair
coupling element
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.)
Not-in-force
Application number
EP06022177A
Other languages
German (de)
French (fr)
Other versions
EP1872689A1 (en
Inventor
Elke Dauphin
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.)
Friedrich W Dauphin GmbH and Co
Dauphin Entwicklungs und Beteiligungs GmbH
Original Assignee
Friedrich W Dauphin GmbH and Co
Dauphin Entwicklungs und Beteiligungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Friedrich W Dauphin GmbH and Co, Dauphin Entwicklungs und Beteiligungs GmbH filed Critical Friedrich W Dauphin GmbH and Co
Priority to PL06022177T priority Critical patent/PL1872689T3/en
Priority to US12/308,829 priority patent/US20090184553A1/en
Priority to PCT/DE2007/075006 priority patent/WO2008019684A1/en
Publication of EP1872689A1 publication Critical patent/EP1872689A1/en
Application granted granted Critical
Publication of EP1872689B1 publication Critical patent/EP1872689B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462Support 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
    • A47C7/465Support 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 by pulling an elastic cable

Definitions

  • the invention relates to a chair, in particular an office chair, with a hinged to a support via a backrest support backrest with an adjustable lumbar support and a seat, which is attached to the carrier.
  • a chair is out for example US 2002/0130541 A1 known.
  • the invention has for its object to provide a chair that offers a particularly comfortable automatic adjustment.
  • the chair provides a coupling of the inclination position of the backrest and the adjustment of the lumbar support via a coupling element such that a backward tilting movement of the backrest causes a change in the adjustment of the lumbar support, in particular a relaxation of the lumbar support and a forward tilting movement of the backrest also a Change in the adjustment of the lumbar support, in particular causes a tension of the lumbar support.
  • the backrest support backrest also has an integrated adjusting element for adjusting the height of the backrest relative to the backrest support.
  • a lumbar support is present, which tensions or relaxes depending on the inclination position of the backrest and thus enables an optimized shaping of the backrest.
  • the lumbar support integrated in the backrest is automatically adjusted so that, in particular when the user leans back, the lumbar support is relaxed and thus an ergonomically advantageous support in the user's lumbar region.
  • the lumbar support When leaning forward of the user, the lumbar support is tense, so that automatically takes place for this case, an ergonomically desired adjustment of the lumbar support.
  • the coupling element is designed as a cable (Bowden cable).
  • the coupling element In a change in the inclination position of the backrest relative to the seat, the coupling element is tense or relaxed.
  • the cable which is attached with its one end to the lumbar support, and with its other end to or in the area of the seat of the chair, relaxed at a tilt of the back to the rear, so that by easing the tension on the cable, the lumbar support of the strained (ie more or less curved) position in a relaxed (ie slightly curved or completely flat) position is transferred.
  • the coupling element is integrated in the backrest support of the backrest, so that a transmitted from the region of the seat surface actuation of the coupling element is transferred by the running in the backrest support member of the backrest Lumbar support integrated in the backrest.
  • Fig. 1 shows the chair structure of a chair 1 (without per se known additional parts such as armrests, pivot column, pedestal, etc.) with a support 33 and a hinged to a backrest 2 backrest 3 with a built-in backrest 3 lumbar support 4 and one in the area 5 on the support 33 attachable seat 12 (see. Fig. 5 ).
  • the lumbar support 4 consists of individual support areas 6, 7, 8 and 9, which are actuated by a coupling element 10, in particular a cable 11, to the effect that when tensioning the lumbar support 4, the individual support areas 6, 7, 8 and 9 arched to each other and at Relaxation, the individual support areas are arranged substantially flat and relaxed to each other.
  • the lumbar support 4 is attached to the backrest 3 at a lower edge region, for example at the support region 9, wherein the uppermost support region 6 is applied by the voltage applied by the coupling element 10 with respect to the lower support regions 7, 8 and 9, so that the distances 14 between the support areas 6, 7, 8 and 9 are reduced in tension of the lumbar support 4.
  • the cable 11 is integrated into the backrest support 2 and held in a recess 15. Through the recess 15 (see. Fig. 5 ), the cable 11 is guided in the area below the seat 12, which in Fig. 5 schematically indicated by a line.
  • the cable 11 has a first (not visible) end portion which is connected to the support portion 6 and a further end portion 13 which is indirectly or directly connected to the seat surface 12.
  • the chair according to Fig. 1 alternatively or additionally, a lateral adjustment element 20, which is designed to be self-locking, and wherein a separate (external) adjustment of the lumbar support 4 can be made by a separate cable pull 21.
  • the adjusting element 21 has a lever 22 which is displaceable in the direction 23 and depending on the setting position the cable 21 is operated such that the lumbar support 4 is more or less tense (curved or not curved) is formed.
  • the chair 1 has an adjusting element 24 integrated in the backrest support 2, which allows a height adjustment of the backrest 3 relative to the backrest support 2.
  • the adjusting element 24 has in particular a horizontal bar 25, which enables locking of the height position of the backrest 3 on the backrest support 2 by latching.
  • lever 26 and / or 27 can be done by moving the lever 26 and 27 in the direction 28, a displacement of the horizontal bar 25 by displacement of the recess 29 in the direction 30 for the respective user (left or right-handed), whereby the spring 31 is tensioned ,
  • the chair 1 of the invention thus has a backrest support 2, in which in a particular embodiment, both an integrated recess 15 for receiving a coupling element 10, in particular a cable 11, is provided and also an integrated recording of an adjustment 24 for height adjustment of the backrest 3 relative to the backrest support 2 is enabled.
  • the cable 11 is initially parallel to the longitudinal extent of the backrest support 2 (see. Fig. 1 ) led upwards and then guided in an arc 32 back down to the support areas 9 - 6 with for different height settings of the backrest 3 on the backrest support 2 sufficient length.
  • a coupling element 10 (in particular cable 11) connected to the seat surface 12 is thus offered, which is realized simultaneously with a height adjustment of the backrest 3 integrated in the backrest 13 (by the adjusting element 24).
  • a coupling element 10 (in particular cable 11) connected to the seat surface 12 is thus offered, which is realized simultaneously with a height adjustment of the backrest 3 integrated in the backrest 13 (by the adjusting element 24).
  • the lumbar support 4 is realized with a height adjustment of the backrest 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The chair (1) has a backrest (4) connected to a support (2) over a back rest support, where the backrest has an adjustable lumbar support as well as a seat surface (5), which is attached at the support. An inclination position of the backrest and an adjusting position of the lumbar support are coupled with one another over a coupling unit e.g. bowden cable, in such that a downwardly directed tilting movement of the backrest causes a change of the adjusting position of the lumbar support, in particular relaxation of the lumbar support.

Description

Die Erfindung betrifft einen Stuhl, insbesondere einen Bürostuhl, mit einer an einem Träger über einen Lehnenträger angelenkten Rücklehne mit einer verstellbaren Lumbalstütze sowie einer Sitzfläche, die am Träger angebracht ist. Ein solcher Stuhl ist z.B. aus US 2002/0130541 A1 bekannt.The invention relates to a chair, in particular an office chair, with a hinged to a support via a backrest support backrest with an adjustable lumbar support and a seat, which is attached to the carrier. Such a chair is out for example US 2002/0130541 A1 known.

Der Erfindung liegt die Aufgabe zugrunde, einen Stuhl anzubieten, der eine besonders komfortable automatische Verstellmöglichkeit bietet.The invention has for its object to provide a chair that offers a particularly comfortable automatic adjustment.

Diese Aufgabe wird durch einen Stuhl mit den Merkmalen des Patentanspruchs 1 gelöst, Vorteilhafte Ausführungsformen des Stuhls sind in den Unteransprüchen beschrieben.This object is achieved by a chair having the features of claim 1. Advantageous embodiments of the chair are described in the subclaims.

Der Stuhl sieht eine Kopplung der Neigungsposition der Rückenlehne und der Verstellposition der Lumbalstütze über ein Kopplungselement derart vor, daß eine nach hinten gerichtet Kippbewegung der Rückenlehne eine Veränderung der Verstellposition der Lumbalstütze, insbesondere eine Entspannung der Lumbalstütze veranlaßt und eine nach vorne gerichtete Kippbewegung der Rückenlehne ebenfalls eine Veränderung der Verstellposition der Lumbalstütze, insbesondere eine Spannung der Lumbalstütze veranlaßt.The chair provides a coupling of the inclination position of the backrest and the adjustment of the lumbar support via a coupling element such that a backward tilting movement of the backrest causes a change in the adjustment of the lumbar support, in particular a relaxation of the lumbar support and a forward tilting movement of the backrest also a Change in the adjustment of the lumbar support, in particular causes a tension of the lumbar support.

Erfindungsgemäß besitzt der Lehnenträger der Rückenlehne auch ein integriertes Verstellelement zur Höhenverstellung der Rückenlehne gegenüber dem Lehnenträger.According to the invention, the backrest support backrest also has an integrated adjusting element for adjusting the height of the backrest relative to the backrest support.

Somit ist eine Lumbalstütze vorhanden, die sich abhängig von der Neigungsposition der Rückenlehne anspannt bzw. entspannt und so eine optimierte Ausformung der Rückenlehne ermöglicht.Thus, a lumbar support is present, which tensions or relaxes depending on the inclination position of the backrest and thus enables an optimized shaping of the backrest.

Abhängig von der durch den Benutzer des Stuhls herbeigeführten Neigung der Rückenlehne wird die in die Rückenlehne integrierte Lumbalstütze automatisch verstellt, so daß insbesondere beim Zurücklehnen des Benutzers eine Entspannung der Lumbalstütze und damit eine ergonomisch vorteilhafte Abstützung im Lumbalbereich des Benutzers erfolgt.Depending on the inclination of the backrest brought about by the user of the chair, the lumbar support integrated in the backrest is automatically adjusted so that, in particular when the user leans back, the lumbar support is relaxed and thus an ergonomically advantageous support in the user's lumbar region.

Beim nach vorne lehnen des Benutzers wird die Lumbalstütze angespannt, so daß auch für diesen Fall eine ergonomisch gewünschte Einstellung der Lumbalstütze automatisch erfolgt.When leaning forward of the user, the lumbar support is tense, so that automatically takes place for this case, an ergonomically desired adjustment of the lumbar support.

Somit wird automatisch nach Wahl der Neigungsposition der Rückenlehne durch den Benutzer eine ergonomisch gewünschte und gesundheitlich vorteilhafte Einstellung der Lumbalstütze selbsttätig ohne Zutun des Benutzers erreicht.Thus, automatically after selection of the inclination position of the backrest by the user, an ergonomically desired and health advantageous adjustment of the lumbar support automatically achieved without user intervention.

Gemäß einer vorteilhaften Ausführungsform der Erfindung ist das Kopplungselement als Seilzug (Bowdenzug) ausgebildet.According to an advantageous embodiment of the invention, the coupling element is designed as a cable (Bowden cable).

Bei einer Veränderung der Neigungsposition der Rückenlehne gegenüber der Sitzfläche wird das Kopplungselement angespannt oder entspannt. Bei Verwendung eines Seilzugs wird der Seilzug, der mit seinem einen Ende an der Lumbalstütze, und mit seinem anderen Ende an oder im Bereich der Sitzfläche des Stuhls angebracht ist, bei einem Neigen der Rückenlehne nach hinten entspannt, so daß durch Nachlassen der Spannung auf dem Seilzug die Lumbalstütze von der gespannten (also mehr oder weniger gewölbten) Position in eine entspannte (d.h. gering gewölbte oder vollständig ebene) Position überführt wird.In a change in the inclination position of the backrest relative to the seat, the coupling element is tense or relaxed. When using a cable, the cable, which is attached with its one end to the lumbar support, and with its other end to or in the area of the seat of the chair, relaxed at a tilt of the back to the rear, so that by easing the tension on the cable, the lumbar support of the strained (ie more or less curved) position in a relaxed (ie slightly curved or completely flat) position is transferred.

Nach einer weiteren vorteilhaften Ausführungsform ist das Kopplungselement in den Lehnenträger der Rückenlehnen integriert, so daß eine vom Bereich der Sitzfläche übertragene Betätigung des Kopplungselements durch das im Lehnenträger der Rückenlehne verlaufende Kopplungselement in die in der Rückenlehne integrierte Lumbalstütze überführt wird.According to a further advantageous embodiment, the coupling element is integrated in the backrest support of the backrest, so that a transmitted from the region of the seat surface actuation of the coupling element is transferred by the running in the backrest support member of the backrest Lumbar support integrated in the backrest.

Weitere Einzelheiten der Erfindung gehen aus den Ausführungsbeispielen in den Zeichnungsfiguren hervor. Es zeigen:

Fig. 1
eine Rückenansicht des Stuhlaufbaus,
Fig. 2
eine Seitenansicht B des Stuhlaufbaus von Fig. 1,
Fig. 3
eine Ansicht C von oben von Fig. 1,
Fig.4
eine Vorderansicht des Stuhlaufbaus von Fig. 1 sowie
Fig. 5
ein Schnitt A-A von Fig. 4.
Further details of the invention will become apparent from the embodiments in the drawing figures. Show it:
Fig. 1
a back view of the chair structure,
Fig. 2
a side view B of the chair structure of Fig. 1 .
Fig. 3
a view C from the top of Fig. 1 .
Figure 4
a front view of the chair construction of Fig. 1 such as
Fig. 5
a section AA of Fig. 4 ,

Fig. 1 zeigt den Stuhlaufbau eines Stuhls 1 (ohne an sich bekannte Zusatzteile wie Armlehnen, Drehsäule, Fußgestell etc.) mit einem Träger 33 und einer an einem Lehnenträger 2 angelenkten Rückenlehne 3 mit einer in die Rückenlehne 3 integrierten Lumbalstütze 4 sowie einer im Bereich 5 am Träger 33 anbringbaren Sitzfläche 12 (vgl. Fig. 5). Fig. 1 shows the chair structure of a chair 1 (without per se known additional parts such as armrests, pivot column, pedestal, etc.) with a support 33 and a hinged to a backrest 2 backrest 3 with a built-in backrest 3 lumbar support 4 and one in the area 5 on the support 33 attachable seat 12 (see. Fig. 5 ).

Generell bezeichnen identische Bezugszeichen in den einzelnen Zeichnungsfiguren auch identisch bezeichnete und erläuterte Bauteile.In general, identical reference numerals in the individual drawing figures also denote identically designated and explained components.

Die Lumbalstütze 4 besteht aus einzelnen Stützbereichen 6, 7, 8 und 9, die durch ein Kopplungselement 10, insbesondere einen Seilzug 11, dahingehend betätigbar sind, daß bei Spannung der Lumbalstütze 4 die einzelnen Stützbereiche 6, 7, 8 und 9 gewölbt zueinander und bei Entspannung die einzelnen Stützbereiche im wesentlichen eben und entspannt zueinander angeordnet sind.The lumbar support 4 consists of individual support areas 6, 7, 8 and 9, which are actuated by a coupling element 10, in particular a cable 11, to the effect that when tensioning the lumbar support 4, the individual support areas 6, 7, 8 and 9 arched to each other and at Relaxation, the individual support areas are arranged substantially flat and relaxed to each other.

Die Lumbalstütze 4 ist dabei an einem unteren Randbereich, z.B. am Stützbereich 9, an der Rückenlehne 3 angebracht, wobei durch Spannungsbeaufschlagung durch das Kopplungselement 10 der oberste Stützbereich 6 gegenüber den unteren Stützbereichen 7, 8 und 9 herangezogen wird, so daß die Abstände 14 zwischen den Stützbereichen 6, 7, 8 und 9 bei Spannung der Lumbalstütze 4 verringert werden.The lumbar support 4 is attached to the backrest 3 at a lower edge region, for example at the support region 9, wherein the uppermost support region 6 is applied by the voltage applied by the coupling element 10 with respect to the lower support regions 7, 8 and 9, so that the distances 14 between the support areas 6, 7, 8 and 9 are reduced in tension of the lumbar support 4.

Der Seilzug 11 ist dabei in den Lehnenträger 2 integriert und in einer Ausnehmung 15 gehalten. Durch die Ausnehmung 15 (vgl. Fig. 5) wird der Seilzug 11 in den Bereich unterhalb der Sitzfläche 12 geführt, die in Fig. 5 schematisch durch eine Linie angedeutet ist.The cable 11 is integrated into the backrest support 2 and held in a recess 15. Through the recess 15 (see. Fig. 5 ), the cable 11 is guided in the area below the seat 12, which in Fig. 5 schematically indicated by a line.

Bei Neigung der Rückenlehne 3 wird die Winkelposition der Rückenlehne 3 gegenüber der Sitzfläche 12 verändert.When tilting the backrest 3, the angular position of the backrest 3 relative to the seat surface 12 is changed.

Der Seilzug 11 besitzt dabei einen ersten (nicht sichtbaren) Endbereich, der mit dem Stützbereich 6 verbunden ist und einen weiteren Endbereich 13, der mittelbar oder direkt mit der Sitzfläche 12 verbunden ist.The cable 11 has a first (not visible) end portion which is connected to the support portion 6 and a further end portion 13 which is indirectly or directly connected to the seat surface 12.

In der Ausführungsform gemäß Fig. 5 ist der weitere Endbereich 13 an einer Halterung 14 der Sitzfläche 12 angelenkt.In the embodiment according to Fig. 5 the further end portion 13 is hinged to a holder 14 of the seat 12.

Bei Veränderung der Neigungsposition der Rückenlehne 3 in Richtung 16 nach vorne durch Verschwenkung gegenüber der Sitzfläche 12 wird die Mantelung 17 des Seilzugs 11 vom Arretierungselement 18 beabstandet, der Abstand 19 wächst. Damit wird der Seilzug 11 gespannt und wird auch die Lumbalstütze 4 gespannt und die Abstände 14 zwischen den Stützbereichen 6, 7, 8 und 9 verringern sich.When changing the inclination position of the backrest 3 in the direction 16 forward by pivoting relative to the seat surface 12, the jacket 17 of the cable 11 is spaced from the locking element 18, the distance 19 grows. Thus, the cable 11 is stretched and also the lumbar support 4 is stretched and the distances 14 between the support areas 6, 7, 8 and 9 decrease.

Wenn die Rückenlehne 3 wieder nach hinten entgegen Richtung 16 geneigt wird, bewegt sich die Mantelung 17 wieder auf das Arretierungselement 18 zu, der Abstand 19 verringert sich und die Lumbalstütze 4 wird entspannt, die Abstände 14 zwischen den Stützbereichen 6, 7, 8 und 9 vergrößern sichWhen the backrest 3 is tilted back against the direction 16, the jacket 17 moves back to the locking member 18, the distance 19 decreases and the lumbar support 4 is relaxed, the distances 14 between the support portions 6, 7, 8 and 9 enlarge

Nach einer weiteren Ausführungsform besitzt der Stuhl gemäß Fig. 1 alternativ oder ergänzend ein seitliches Verstellelement 20, welches selbsthemmend ausgebildet ist und wobei durch einen separaten Seilzug 21 eine eigene (ergänzende) Verstellung der Lumbalstütze 4 vorgenommen werden kann.According to another embodiment, the chair according to Fig. 1 alternatively or additionally, a lateral adjustment element 20, which is designed to be self-locking, and wherein a separate (external) adjustment of the lumbar support 4 can be made by a separate cable pull 21.

Das Verstellelement 21 besitzt einen Hebel 22, der in Richtung 23 verschiebbar ist und je nach Stellposition den Seilzug 21 derart betätigt, daß die Lumbalstütze 4 mehr oder weniger angespannt (gewölbt oder nicht gewölbt) ausgebildet ist.The adjusting element 21 has a lever 22 which is displaceable in the direction 23 and depending on the setting position the cable 21 is operated such that the lumbar support 4 is more or less tense (curved or not curved) is formed.

Gemäß einer weiteren vorteilhaften Ausführungsform besitzt der Stuhl 1 ein in den Lehnenträger 2 integriertes Verstellelement 24, welches eine Höhenverstellung der Rückenlehne 3 gegenüber dem Lehnenträger 2 ermöglicht.According to a further advantageous embodiment, the chair 1 has an adjusting element 24 integrated in the backrest support 2, which allows a height adjustment of the backrest 3 relative to the backrest support 2.

Das Verstellelement 24 besitzt dabei insbesondere eine Horizontalleiste 25, welche durch Verrastung eine Arretierung der Höhenposition der Rückenlehne 3 am Lehnenträger 2 ermöglicht.The adjusting element 24 has in particular a horizontal bar 25, which enables locking of the height position of the backrest 3 on the backrest support 2 by latching.

Durch die Hebel 26 und/oder 27 kann für den jeweiligen Benutzer (Links- oder Rechtshänder) durch Betätigung der Hebel 26 und 27 in Richtung 28 eine Verschiebung der Horizontalleiste 25 durch Verschiebung der Ausnehmung 29 in Richtung 30 erfolgen, wodurch die Feder 31 gespannt wird.By the lever 26 and / or 27 can be done by moving the lever 26 and 27 in the direction 28, a displacement of the horizontal bar 25 by displacement of the recess 29 in the direction 30 for the respective user (left or right-handed), whereby the spring 31 is tensioned ,

Wenn die Hebel 26 und/oder 27 nicht mehr betätigt werden, wirkt die Federkraft der Feder 31 und die Horizontalleiste 25 wird entgegen Richtung 30 zurückbewegt, so daß wieder eine Arretierung der Rückenlehne 3 am Lehnenträger 2 in der neuen Höhenposition ermöglicht wird.When the levers 26 and / or 27 are no longer actuated, the spring force of the spring 31 and the horizontal bar 25 is moved back counter to the direction 30, so that again a lock of the Backrest 3 on the backrest support 2 in the new height position is made possible.

Der erfindungsgemäße Stuhl 1 besitzt somit einen Lehnenträger 2, bei dem in einer besonderen Ausführung sowohl eine integrierte Ausnehmung 15 zur Aufnahme eines Kopplungselements 10, insbesondere eines Seilzugs 11, vorgesehen ist und ferner eine integrierte Aufnahme eines Verstellelements 24 zur Höhenverstellung der Rückenlehne 3 gegenüber dem Lehnenträger 2 ermöglicht wird.The chair 1 of the invention thus has a backrest support 2, in which in a particular embodiment, both an integrated recess 15 for receiving a coupling element 10, in particular a cable 11, is provided and also an integrated recording of an adjustment 24 for height adjustment of the backrest 3 relative to the backrest support 2 is enabled.

Dabei ist insbesondere der Seilzug 11 zunächst parallel zur Längserstreckung des Lehnenträgers 2 (vgl. Fig. 1) nach oben geführt und dann in einem Bogen 32 wieder nach unten zu den Stützbereichen 9 - 6 mit für unterschiedliche Höheneinstellungen der Rückenlehne 3 am Lehnenträger 2 ausreichender Länge geführt.In particular, the cable 11 is initially parallel to the longitudinal extent of the backrest support 2 (see. Fig. 1 ) led upwards and then guided in an arc 32 back down to the support areas 9 - 6 with for different height settings of the backrest 3 on the backrest support 2 sufficient length.

Erfindungsgemäß wird so ein mit der Sitzfläche 12 verbundenes Kopplungselement 10 (insbesondere Seilzug 11) angeboten, das gleichzeitig mit einer in die Rückenlehne 13 integrierten Höhenverstellung der Rückenlehne 3 (durch das Verstellelement 24) realisiert wird. Damit wird eine automatische Verstellung der Lumbalstütze 4 mit einer Höhenverstellbarkeit der Rückenlehne 3 realisiert.According to the invention, a coupling element 10 (in particular cable 11) connected to the seat surface 12 is thus offered, which is realized simultaneously with a height adjustment of the backrest 3 integrated in the backrest 13 (by the adjusting element 24). For an automatic adjustment of the lumbar support 4 is realized with a height adjustment of the backrest 3.

BEZUGSZEICHENREFERENCE NUMBERS

11
Stuhlchair
22
Lehnenträgerbackrest support
33
Rückenlehnebackrest
44
Lumbalstützelumbar support
55
BereichArea
66
Stützbereichsupport area
77
Stützbereichsupport area
88th
Stützbereichsupport area
99
Stützbereichsupport area
1010
Kopplungselementcoupling element
1111
Seilzugcable
1212
Sitzflächeseat
1313
Endbereichend
1414
Abstanddistance
1515
Ausnehmungrecess
1616
Richtungdirection
1717
MantelungMantle
1818
Arretierungselementlocking
1919
Abstanddistance
2020
Verstellelementadjustment
2121
Seilzugcable
2222
Hebellever
2323
Richtungdirection
2424
Verstellelementadjustment
2525
HorizontalleisteHorizontal bar
2626
Hebellever
2727
Hebellever
2828
Richtungdirection
2929
Ausnehmungrecess
3030
Richtungdirection
3131
Federfeather
3232
Bogenbow
3333
Trägercarrier

Claims (9)

  1. Chair (1), in particular office chair, with a backrest (3) which is articulated on a carrier (33) via a backrest carrier (2) and has an adjustable lumbar support (4), and with a seat surface (12) which is attached to the carrier (33) such that the inclination position of the backrest (3) and the adjustment position of the lumbar support (4) are coupled to each other via a coupling element (10) in such a manner that a rearwardly directed tilting movement of the backrest (3) causes a change in the adjustment position of the lumbar support (4), in particular relaxation of the lumbar support (4), and a forwardly directed tilting movement of the backrest (3) likewise causes a change in the adjustment position of the lumbar support (4), in particular tensioning of the lumbar support (4), characterized in that the backrest carrier (2) of the backrest (3) has an integrated adjustment element (24) for adjusting the height of the backrest (3) in relation to the backrest carrier (2).
  2. Chair according to Claim 1, characterized in that the coupling element (10) is attached by a first end region to the lumbar support (4) and by a further end region to the seat surface (12) of the chair.
  3. Chair according to either of Claims 1 and 2, characterized in that that end region (13) of the coupling element (10) which is attached to the seat surface (12) is attached to a fastening element (14) of the seat surface.
  4. Chair according to one of the preceding claims, characterized in that the coupling element (10) is a cable pull (11).
  5. Chair according to Claim 4, characterized in that the cable pull (11) has at least one locking element for setting the lumbar support (4) in the relaxed position.
  6. Chair according to one of the preceding claims, characterized in that the lumbar support (4) comprises supporting regions (6-9).
  7. Chair according to one of the preceding claims, characterized in that the lumbar support (4) can be transferred by actuation of the coupling element (10) from a substantially curved, tensioned position into a substantially rectilinear, relaxed position.
  8. Chair according to one of the preceding claims, characterized in that the coupling element (10) is integrated in the backrest carrier (2) of the backrest.
  9. Chair according to Claim 8, characterized in that the backrest carrier (2) of the backrest has a recess (15) for receiving the coupling element (10).
EP06022177A 2006-06-26 2006-10-23 Chair with automatically adjustable lumbar support Not-in-force EP1872689B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL06022177T PL1872689T3 (en) 2006-06-26 2006-10-23 Chair with automatically adjustable lumbar support
US12/308,829 US20090184553A1 (en) 2006-06-26 2007-06-25 Chair with an Automatically Adjustable Lumbar Support
PCT/DE2007/075006 WO2008019684A1 (en) 2006-06-26 2007-06-25 Chair with an automatically adjustable lumbar support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006029537A DE102006029537A1 (en) 2006-06-26 2006-06-26 Chair e.g. office chair, has backrest connected to support over back rest support, where inclination position of backrest and adjusting position of lumbar support are coupled with one another over coupling unit e.g. bowden cable

Publications (2)

Publication Number Publication Date
EP1872689A1 EP1872689A1 (en) 2008-01-02
EP1872689B1 true EP1872689B1 (en) 2009-12-30

Family

ID=38523472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06022177A Not-in-force EP1872689B1 (en) 2006-06-26 2006-10-23 Chair with automatically adjustable lumbar support

Country Status (8)

Country Link
US (1) US20090184553A1 (en)
EP (1) EP1872689B1 (en)
CN (1) CN101478896A (en)
AT (1) ATE453344T1 (en)
DE (2) DE102006029537A1 (en)
DK (1) DK1872689T3 (en)
PL (1) PL1872689T3 (en)
WO (1) WO2008019684A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE533354C2 (en) * 2009-01-29 2010-08-31 Officeline Ab Office chair
SE536454C2 (en) * 2012-02-06 2013-11-12 Lt Office Line Ab Office chair with an adjustable lumbar support
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
US9282825B1 (en) 2015-01-07 2016-03-15 Exemplis Llc Lumbar support adjustment mechanisms
US9629469B1 (en) 2016-05-12 2017-04-25 Mary Watkins Lumbar support system
CN206822374U (en) * 2017-01-19 2018-01-02 欧亚平 A kind of backrest can be close to the chair of human waist and back movement
CN110063617B (en) * 2019-04-11 2021-07-09 云南农业大学 Seat auxiliary device based on ergonomics and control system and control method thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251107A (en) * 1978-03-20 1981-02-17 Sugatsune Industrial Co., Ltd. Collapsible reclining chair
BE897046A (en) * 1983-06-14 1983-10-03 Mevergnies Marcel Neve De ARMCHAIR FOR VEHICLE, PARTICULARLY AUTOMOTIVE
NO176384C (en) * 1990-10-12 1995-03-29 Ekornes Fabrikker As J E Device by a chair, especially a chair with adjustable back and headrest
US6189972B1 (en) * 1998-06-05 2001-02-20 Teknion Furniture Systems Inc. Lumbar support adjustment mechanism
WO2002024125A1 (en) * 2000-09-19 2002-03-28 Yoo Han Keel Chair for correcting an improper alignment of spinal vertebrae and method for correcting an improper alignment of spinal vertebrae by means of the chair
US6805405B2 (en) * 2001-03-19 2004-10-19 Sung Yong Co., Ltd. Chair equipped with lumbar support unit
US6652029B2 (en) * 2001-12-20 2003-11-25 L & P Property Management Company Unitized back plate and lumbar support
DE10200895B4 (en) * 2002-01-11 2017-06-01 himolla Polstermöbel GmbH Seating / reclining furniture
DE10351157B3 (en) * 2003-11-03 2005-06-09 Faurecia Autositze Gmbh & Co. Kg Automotive seat
US7540464B2 (en) * 2005-08-26 2009-06-02 Badiollah R. Samari Book holder
US7226127B1 (en) * 2005-12-21 2007-06-05 Tk Canada Limited Ergonomic chair backrest

Also Published As

Publication number Publication date
CN101478896A (en) 2009-07-08
DE502006005787D1 (en) 2010-02-11
WO2008019684A1 (en) 2008-02-21
DE102006029537A1 (en) 2007-12-27
DK1872689T3 (en) 2010-05-03
ATE453344T1 (en) 2010-01-15
PL1872689T3 (en) 2010-06-30
EP1872689A1 (en) 2008-01-02
US20090184553A1 (en) 2009-07-23

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