EP1566120A1 - Dossier, notamment pour chaise de bureau - Google Patents

Dossier, notamment pour chaise de bureau Download PDF

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Publication number
EP1566120A1
EP1566120A1 EP05003608A EP05003608A EP1566120A1 EP 1566120 A1 EP1566120 A1 EP 1566120A1 EP 05003608 A EP05003608 A EP 05003608A EP 05003608 A EP05003608 A EP 05003608A EP 1566120 A1 EP1566120 A1 EP 1566120A1
Authority
EP
European Patent Office
Prior art keywords
backrest
support
seat
chair
adjusting 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.)
Withdrawn
Application number
EP05003608A
Other languages
German (de)
English (en)
Inventor
Armin Sander
Christopher Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1566120A1 publication Critical patent/EP1566120A1/fr
Withdrawn legal-status Critical Current

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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
    • A47C7/465—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 by pulling an elastic cable

Definitions

  • the invention relates to a backrest with a lumbar support extending parallel to each other arranged support ribs and with a via a Actuator operable actuator for adjusting the lordosis curvature.
  • she further refers to a chair, in particular an office chair, with a Such backrest and a synchronous movable seat.
  • the lumbar support with a number of Support ribs has.
  • the lumbar support is by means of spring elements in one Hinged back frame and in terms of their lordosis curvature adjustable by means of an actuator. To do this, actuate the actuator Control elements on the backrest cushion facing away from the back Backrest in the manner of a bowstring on the lumbar support. By Actuating the actuator, the adjusting elements are tensioned in such a way that the Lumbar curvature increases as a result of a decrease in length of the control elements.
  • the invention is based on the object, a backrest with a particularly indicate appropriate lumbar support. Furthermore, a chair with a Such backrest and particularly suitable synchronous mechanism be specified.
  • the stated object is achieved according to the invention by the features of claim 1.
  • the support ribs in the Starting position bending elastic pre-arched.
  • the actuator is so on the one pad side of the backrest facing curvature side of the Lumbar support led that at a tensile load of the actuating element the Lordosis curvature decreases.
  • the actuator is thus the backrest in the lumbar region starting from the maximum possible lordosis curvature in the initial position increasingly straightened.
  • the support ribs are in one piece Part of an about at least the essential part of Backrest extending backrest shell. These are in the lordosis area forming the support ribs a number of horizontal longitudinal slots brought in.
  • the back shell is expediently made of a Plastic material, as a result of their weakening in the lumbar region by the longitudinal slots with the back shell in one piece, but bending elastic Support ribs are formed.
  • the unprotected edge area of the backrest or the back shell forms lateral Lordosenr selected, which also transverse to itself in Vertical height extending backrest height elastic and in the Starting position are also bulging toward the upholstered side of the backrest.
  • the leadership of the control element can in the middle region of the lumbar support respectively.
  • the leadership of the actuating elements takes place the or each lateral Lordosenrand over expediently to the Back shell integrally formed guide elements.
  • a preferred bilateral Guiding two control elements in the transverse direction to the support ribs and thus in Lehnenlteilsraum is when using a single actuator in shape an operable by means of a rotary worm gear with driven coil guided on the actuator facing Lordosenrand Actuator led directly to the actuator.
  • the opposite Lumbar support led actuator is then over in the lower part of the Backrest provided deflecting guided to the actuator.
  • the or each preferably executed in the form of a pull cable actuator is on the actuator facing away from the top of the lumbar support to the Backrest, conveniently attached to the back shell.
  • the tension element is on the backrest integrally formed.
  • the articulated connection of the backrest to the seat takes place preferably via a film hinge.
  • the tension element causes a backward inclination of the backrest Pull the backrest underside of the backrest against the one with the backrest synchronously moved backwards and downwards.
  • a relative movement between the Backrest or, where appropriate, the backrest shell relative to this supporting backrest support is the backrest or the Back shell on the upper surface facing away from the seat back on a Pendulum and / or swivel joint connected to the backrest carrier.
  • the advantages achieved by the invention are in particular that on the one hand by the provision of an initial state on the upholstery side and thus bulge elastic in the upholstery of the backrest Lordosen al and on the other hand by the leadership of the control elements again on the upholstered side of the backrest along the Lordosenkrümmung the control elements by the backrest cushion already completely covered are.
  • the pad side remote from the back of the backrest is free of actuators or actuators, so that the back of the back not through additional viewing covers must be covered.
  • connection of the lower back end via a hinged trained Gebelement has the advantage that the backrest during the Synchronous movement in addition to moving around the fulcrum between Seat and backrest support at the same time around the connection point between the Rest and the upper end of the backrest commutes. This results in a combined movement relative to the seat or the seat of a rotation around resembles an assumed point, which is ergonomically better than the fulcrum between seat and backrest support.
  • the backrest 1 shown in Figures 1 and 2 has a horizontally and parallel to each other arranged supporting ribs 2 lordosis formed or lumbar support 3.
  • the lumbar support 3 is between a Lehnenoberseite 4 and a backrest base 5 in the middle to lower Area of the backrest 1 and thus in the chest and near the bottom Spine region of a user person provided.
  • an actuator. 6 attached, which is operable with a knob 7.
  • the pull rope 9 is over a number of Guiding elements 10, 11 out.
  • the guide elements 10, 11 are on the hereinafter referred to as curvature or front side 12, one in the Figures 2a and 2b shown in dashed backrest pad 13 facing upholsteryed side firmly connected to the backrest 1.
  • the guide elements 11 serve also for deflecting the tension cable 9 in the area of Backrest base 5.
  • the guide elements 10 are - based on Figure 1 - on the left backrest or Lordosenrand 14 and on the right back or lumbar edge 15 in Lehnenlteilscardi 16 arranged above or below each other.
  • Edge regions are the support ribs 2 on the respective lordosis or Backrest edge 14, 15 connected together.
  • the traction cable 9 is guided on the upholstery or front side 12 of the backrest 1.
  • the pull rope 9 increasing tensile load.
  • the control element 9 increasing shortened.
  • the Lordosenkrümmung 18 of the illustrated in Figure 2a Starting position up to the shown in Figure 2b comparatively low from bulging end position, in which the backrest 1 at least approximately straightened.
  • the or each pull rope 9 is in the area of the Lordosenoberseite 19 fixed with its local rope end 9a on the backrest 1.
  • the coil 20 is with a toothed or worm wheel 21 firmly connected that in a worm 22nd intervenes.
  • the knob 7 is positively and non-positively placed.
  • the by the worm wheel 21 and the worm 22 formed worm gear is fixed by means of a cover 24 on the backrest 1.
  • the lumbar support 3 is integrated in the backrest 1 in one piece.
  • the backrest 1 with integrated lumbar support 3 is thus particularly simple z. B. by injection molding, can be produced.
  • 15 of the Lordosen serum 3 are on the back shell 26 and the guide elements 10,11 integrally formed.
  • a Tension element 30 On the opposite backrest base 5 is on the back shell 26 a Tension element 30 preferably formed via a hinge or hinge 31.
  • the Joint 31 is expediently designed as a film hinge.
  • this tension element 30 is the backrest 1 and the back shell 26 with whose backrest base 5 with the rear seat end 32 of a seat 33 of the firmly connected to the figures 4a and 4b chair.
  • the backrest support 27 goes to the pendulum / swivel joint 28 remote from the lower carrier end or support leg 34 in a backrest arm 35 via or is with this for example, integrally connected.
  • the backrest handle 35, the one extension of the backrest support 27 is connected to a seat support 36 which in turn connected to a stand only partially shown 37.
  • a second Swivel joint 39 is between the backrest handle 35 and the seat 33rd intended.
  • a provided in the front region of the seat 33 seat link Fig. 40 illustrates a rotational and sliding movable connection between the seat support 36 and the seat 33 ago.
  • the backrest 1 oscillates during the synchronous movement in addition to the movement around the fulcrum 39 between the seat 33 and the backrest support 27 at the same time around the connection point in the form of the joint 28 between the backrest 1 and the upper end of the Recliner 27.
  • the resulting combined movement is similar to one Rotation about an assumed point 29 relative to the seat 33.
  • This Virtual pivot point 29 is ergonomically advantageous higher than the pivot point 39 between the seat 33 and the backrest support 27th
  • the adjusting element 9 of the lumbar support 3 in Shape of the exemplified pull ropes and their leadership provided guide elements 10,11 in the final assembled state completely from the backrest cushion 13 are covered. Additional cover elements, in particular on the front side 12 facing away from the back 41 of Backrest 1 are therefore not required because there no adjusting elements of Lumbar support 3 are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP05003608A 2004-02-21 2005-02-19 Dossier, notamment pour chaise de bureau Withdrawn EP1566120A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004002777 2004-02-21
DE202004002777U 2004-02-21

Publications (1)

Publication Number Publication Date
EP1566120A1 true EP1566120A1 (fr) 2005-08-24

Family

ID=34706978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003608A Withdrawn EP1566120A1 (fr) 2004-02-21 2005-02-19 Dossier, notamment pour chaise de bureau

Country Status (2)

Country Link
US (1) US7216933B2 (fr)
EP (1) EP1566120A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104761U1 (de) 2012-10-11 2013-01-24 Josef Glöckl Rückenlehnenanordnung
EP2719304A1 (fr) 2012-10-11 2014-04-16 Glöckl, Josef Agencement de dossier

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101390691B (zh) * 2007-09-18 2010-08-11 卢顺接 椅子及椅子靠背
AU2009258164A1 (en) * 2008-05-26 2009-12-17 Steelcase Inc. Conforming back for a seating unit
US7841664B2 (en) * 2008-06-04 2010-11-30 Steelcase Inc. Chair with control system
EP2325040B1 (fr) * 2009-11-23 2018-01-03 Faurecia Automotive Seating, Inc. Coque de confort contrôlable pour siège de véhicule
CN103906655B (zh) * 2011-09-12 2018-05-15 佛吉亚汽车座椅有限责任公司 用于车辆座椅的可控舒适壳体
EP2760702B1 (fr) * 2011-09-26 2018-09-05 Faurecia Automotive Seating, LLC Dossier de siège de véhicule à commande de mouvement à raccord flexible
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
US8998339B2 (en) 2012-09-20 2015-04-07 Steelcase Inc. Chair assembly with upholstery covering
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
US11229294B2 (en) * 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
US9661930B2 (en) 2012-09-21 2017-05-30 Steelcase Inc. Chair construction
USD696545S1 (en) * 2013-07-30 2013-12-31 Steelcase, Inc. Rear surface of a chair back
WO2015064500A1 (fr) * 2013-10-29 2015-05-07 株式会社岡村製作所 Chaise
JP6192220B2 (ja) * 2013-10-29 2017-09-06 株式会社岡村製作所 椅子
JP6235303B2 (ja) * 2013-10-29 2017-11-22 株式会社岡村製作所 椅子
JP6440307B2 (ja) * 2015-01-05 2018-12-19 株式会社オカムラ 椅子
USD815868S1 (en) 2016-02-02 2018-04-24 Office Master Inc. Office chair
US9596941B1 (en) 2016-02-02 2017-03-21 Office Master Inc. Chair back with height and lumbar adjustment
US10299602B2 (en) * 2017-03-22 2019-05-28 Yao-Chuan Wu Chair
JP6465525B2 (ja) * 2017-10-26 2019-02-06 株式会社オカムラ 椅子
US10813463B2 (en) 2017-12-05 2020-10-27 Steelcase Inc. Compliant backrest
US11291305B2 (en) 2017-12-05 2022-04-05 Steelcase Inc. Compliant backrest
USD898496S1 (en) * 2018-06-11 2020-10-13 Exemplis Llc Chair
US11690457B2 (en) * 2020-02-04 2023-07-04 Hni Technologies Inc. Chair with flexible internal support
US11945351B2 (en) * 2021-05-19 2024-04-02 Adient Us Llc Seat adjustment device for a flexible seat frame and method of use
JP2023122112A (ja) * 2022-02-22 2023-09-01 株式会社タチエス 車両用シート

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Publication number Priority date Publication date Assignee Title
DE2947472C2 (fr) 1979-01-24 1988-06-30 Steyr-Daimler-Puch Ag, Wien, At
US6254186B1 (en) * 1996-09-05 2001-07-03 Henderson's Industries Pty Ltd Adjustable lumbar support

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AT358767B (de) * 1978-06-23 1980-09-25 Schuster Wilhelm Biegsame elastische stuetze
SE445168B (sv) * 1983-01-27 1986-06-09 Be Ge Stolindustri Ab Stolsrygg, spec till en fordonsstol
AT394829B (de) * 1989-08-04 1992-06-25 Schuster Wilhelm Rueckenlehne fuer einen fahrzeugsitz, mit einer verstellbaren lendenstuetze
AUPM314693A0 (en) * 1993-12-24 1994-01-27 Henderson's Industries Pty Ltd Adjustable lumbar support
US5651584A (en) * 1995-04-24 1997-07-29 L & P Property Management Company Lumbar support structure for automotive vehicle
US5975634A (en) * 1997-10-24 1999-11-02 Steelcase Development Inc. Chair including novel back construction
US6378942B1 (en) * 2000-06-20 2002-04-30 Global Total Office Backrest with adjustable lumbar support
US6805405B2 (en) * 2001-03-19 2004-10-19 Sung Yong Co., Ltd. Chair equipped with lumbar support unit
US6758522B2 (en) * 2001-03-29 2004-07-06 L&P Property Management Company Apparatus and method for varying coefficients of friction in a variable apex back support
US6616228B2 (en) * 2001-06-20 2003-09-09 Steelcase Development Corporation Compliant back for seating unit
DE10200355A1 (de) * 2002-01-08 2003-07-17 Dauphin Friedrich W Gmbh Stuhl
US6918634B2 (en) * 2003-07-22 2005-07-19 Henderson's Industries Pty Ltd Lumbar support

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947472C2 (fr) 1979-01-24 1988-06-30 Steyr-Daimler-Puch Ag, Wien, At
US6254186B1 (en) * 1996-09-05 2001-07-03 Henderson's Industries Pty Ltd Adjustable lumbar support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104761U1 (de) 2012-10-11 2013-01-24 Josef Glöckl Rückenlehnenanordnung
EP2719304A1 (fr) 2012-10-11 2014-04-16 Glöckl, Josef Agencement de dossier
WO2014056637A1 (fr) 2012-10-11 2014-04-17 Glöckl Josef Dispositif de dossier

Also Published As

Publication number Publication date
US7216933B2 (en) 2007-05-15
US20050184568A1 (en) 2005-08-25

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