DE102007044130A1 - Backrest, in particular, of an office chair - Google Patents

Backrest, in particular, of an office chair

Info

Publication number
DE102007044130A1
DE102007044130A1 DE200710044130 DE102007044130A DE102007044130A1 DE 102007044130 A1 DE102007044130 A1 DE 102007044130A1 DE 200710044130 DE200710044130 DE 200710044130 DE 102007044130 A DE102007044130 A DE 102007044130A DE 102007044130 A1 DE102007044130 A1 DE 102007044130A1
Authority
DE
Germany
Prior art keywords
backrest
support
characterized
according
joint
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Withdrawn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
DE200710044130
Other languages
German (de)
Inventor
Martin Potrykus
Armin Sander
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.)
Koenig and Neurath AG
Original Assignee
Koenig and Neurath AG
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 Koenig and Neurath AG filed Critical Koenig and Neurath AG
Priority to DE200710044130 priority Critical patent/DE102007044130A1/en
Publication of DE102007044130A1 publication Critical patent/DE102007044130A1/en
Application status is Withdrawn legal-status Critical

Links

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
    • 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
    • A47C7/38Support for the head or the back for the head
    • 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
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • 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
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Abstract

The invention relates to a backrest, in particular an office chair, with two backrest portions (3a, 3b), the formation of a hinge connection (8) in the manner of a four-bar linkage on a two-part backrest support (2) with a lower support arm (20) and with an upper backrest arm (21) are articulated such that between the backrest portions (3a, 3b) a flexible lumbar support (5) is formed.

Description

  • The The invention relates to a backrest, in particular an office chair, with two backrests and a lumbar support.
  • Especially Chairs are often used in the office area high seating comfort used. These enable this in the home or rest position due to the practically vertical Position of the backrest reliable support the back of a user person. The shape of the leaning front Outside contour of the backrest can here more or less adapted to the typical S-shape of a spine be. Also, alternatively or additionally, in the lumbar region of the user's back a lumbar support be provided.
  • From the DE 20 004 948 A1 is a backrest with an adjustable lumbar support known to set a manually operable mechanism is provided. In particular, in conjunction with a so-called synchronous mechanism for synchronously adjustable inclination of the backrest and seat, the mechanical complexity is not negligible.
  • Of the The invention is therefore based on the object, a backrest, preferably for a chair, in particular for an office chair, indicate that at the same time high Comfort and low cost has a particularly effective lumbar support.
  • These The object is achieved by the features of claim 1. Advantageous embodiments and developments are the subject of the dependent claims.
  • So The backrest is initially made of two superimposed arranged backrest portions formed on a backrest support are held. The two backrest areas are in the lumbar area the back of a user person articulated connected with each other. The two backrest areas are expediently each by rigid, substantially deformation resistant backrest cushion educated. Here are suitably the two backrest areas to form an S-shaped support or Outer contour lean forward and gap back arranged spaced apart. The lean or upholstery back Release or gap contour allows in easier and visually virtually invisible way the desired Deformability between the two backrest areas at the same time Deformation stiffness of the two backrest areas.
  • These Backrest areas are under training on the backrest support a four-link chain held articulated. The pivot points or axes are suitably positioned in such a way that two in the backrest longitudinal direction preferably against each other vertically offset joints in the lower, seat-facing area of the backrest front are provided while the other two, also vertically offset in Lehnenlängsrichtung one above the other positioned joints lean back on the backrest support are realized.
  • Concrete this is expediently a first joint the effective in the manner of a four-link chain joint between the upper backrest area and the lower backrest area and there again formed in the area of the lumbar support. A second Joint is conveniently between the lower Backrest area and the (lower) support arm of the backrest support educated. About this joint are those in the lordosis area mutually connected backrest areas or backrest cushions lean underneath held on the backrest support.
  • One third joint of this four-joint chain or joint is between the (lower) support arm and one at this articulated (upper) backrest of the backrest carrier educated. The fourth joint of the four-bar chain is then expediently between the upper backrest area and the (upper) backrest link formed by the backrest wearer. About this top Joint are the two backrest areas and backrest cushions on the upper side articulated on the backrest support, in particular on the backrest support quasi hung up.
  • The Functional principle of the four-bar chain is thus realized by between the articulated backrest support on the one hand and the flexible connection between the two backrest areas on the other hand the the four joints connecting members themselves each are rigid. The thus formed between the two backrest areas flexible area is at the height of about the lordosis the operator and forms there the flexible lumbar support.
  • As a result of an action on the backrest in the transition region between the two backrest areas by the operator takes the degree of curvature of the flexible lumbar support, which is the back of the operator directed bulge in upright seating position maximum, depending on the pressure exerted on the backrest pressure (contact force) continuously, so that the lumbar support is increasingly flattening. Due to the four-bar linkage here, the buckling decrease takes place practically independent of where the force or pressure is applied along the backrest. Reason is that yourself at such a pressure or force on the backrest along the two backrest portions of the upper backrest of the backrest support quasi stretches and thus the upper, relatively long backrest area is pulled vertically upwards at the upper back end. In other words: As a result of a force applied to the backrest pivoted - forced on the four-bar linkage - the comparatively short upper backrest of the backrest support to the third joint of the four-bar linkage with the result that the lumbar support - and thus the first joint located there - also after moved towards the back of the backrest. To this end, the lower, comparatively short backrest area pivots forwards about the (lower) second joint via the four-bar chain.
  • In advantageous embodiment is the manner of a four-bar chain effective articulation at a suitable location spring assisted. A spring element suitable for this purpose can be attached to the joints of the articulated connection or also in the area of the lumbar support of the two-piece Leaning be provided. The spring force of the spring element acts in the direction of the lordosis of the operator, with an inclination the backrest overcome this spring force and thus the backrest automatically becomes an increasing Counterforce against the back of the operator exercises. In contrast, when the operator is sitting vertically, no or little pressure on the backrest, especially in the lordosis area, exercised.
  • One corresponding spring element can in the form of a leg spring, in particular on the third joint, be provided. Alternatively, a tension spring lean back between the two backrest areas or Lehnenpolstern be provided. However, it is particularly advantageous a leaf spring in the area of the lumbar support on the Back of the operator facing side (back of the backrest) the backrest cushion, since at this point in a particularly simple manner and way the spring element or the leaf spring completely and thus invisibly padded.
  • In a further advantageous embodiment is at the (lower) Support arm of the backrest support a headrest appropriate. This includes a support or support frame, in particular with two support legs, which expediently enclose an obtuse angle with each other. At the top) Freeing of the support frame is then a headrest main, in particular a headrest cushion, attached.
  • The Angled form of the support frame is preferably such chosen that the headrest or the Kopfstützenhaupt in a backrest position with a maximum arched Lumbar support in vertical direction with the upper backrest area Aligns and in a Lehne leaning position the upper backrest area leaning forward leaning.
  • by virtue of the rigid connection of this support frame with the (lower) support arm The backrest also stays with the backrest tilted or the two backrest areas, the relative position of the headrest or the headrest padding opposite the (lower) Stabilizer always the same. In contrast, be moved the upper, on the lower backrest handlebar articulated support arm towards the support frame with the headrest too. In the starting position in upright seating position thus forms the Backrest contour including the headrest the S-shape of the spine an operator.
  • at an inclination of the back of the operator to the rear Thus, the head is always supported in one position, in which a view forward is still possible. Consequently remains the position of the headrest and the corresponding Support frame relative to the lower support arm of the backrest carrier always same while pressing the back areas or the backrest cushion in the direction of the backrest support when tilting the backrest, the distance of the upper backrest area to the headrest becomes increasingly larger with the result that the shoulder area of the operator in the Comparison to the head tends to lean backwards.
  • There the two under training of the flexible lumbar support interconnected backrest areas or cushion advantageously deformation-resistant and thus rigid, move under load or force the backrest, in particular even with a tilt of the backrest in an alternative Embodiment with a synchronous mechanism between the Backrest and the seat of a chair, though the two backrest areas relative to each other, but stay for yourself undeformed. This rigid design of the two backrest areas guaranteed also the reliable functional principle of the four-link chain, at the four individual articulated links To ensure this functional principle are rigid. This embodiment thus causes that when leaning back an operator against the backrest and also in their additional inclination in the embodiment with a synchronous mechanism spanned by the four-bar chain Surface with increasing contact pressure against the backrest area gets smaller and smaller.
  • The advantages achieved by the invention are in particular that due to a flexible, articulated design of the intermediate region between two superimposed back regions of a backrest and the out staltung the attachment or suspension of these backrest areas on a two-part, articulated backrest support in a particularly simple and reliable manner in an upright seating position sufficient support in the lumbar region of an operator is guaranteed. At the same time, this backrest construction provides a decreasing lumbar support in the operation of a four-bar chain with increasing inclination to a reclined seating position of the operator. This effectiveness and this operating principle corresponds to the natural behavior and comfort desire of an operator, while in the upright seating position desires support from the backrest in the lumbar region, such support in a reclined sitting position - in extreme cases in a lying position - but not required or wishes. This comfort behavior or comfort desire is due to the fact that in the upright sitting position, a vertical load on the spine, while such a burden decreases with increasing inclination of the spine in the horizontal position. So it is more comfortable with increasing inclination in the horizontal position, although the support in the lumbar region decreases accordingly.
  • this Comfort desire is in a simple way the inventive Backrest fair by the flexible lumbar support in the upright seating position sufficient support ensured in the lumbar region of an operator, with increasing inclination in a reclined sitting position but automatically a decreasing lumbar support offers.
  • About that In addition, the concatenation of the hinged together provides Elements of the backrest, namely the two backrest areas and the two handlebars of the backrest support against a simple flexible trained Lordosenstützbereich the Advantage that, regardless of where on the Backrest applied a corresponding pressure is going to join the elements of the four-link chain together always move the connected backrest parts to the same position.
  • following Be embodiments of the invention with reference to a Drawing explained in more detail. Show:
  • 1 schematically in a side view the backrest-seat area of a chair with a flexible lumbar support having backrest with graphically highlighted four-bar chain in the starting position,
  • 2 in a representation according to 1 the backrest in a force- or pressurized position with a flattened lumbar support,
  • 3 the backrest according to 1 with headrest,
  • 4 the backrest according to 3 in a position of the backrest according to 2 .
  • 5 the design of the backrest according to 3 in conjunction with a synchronous mechanism between the seat and the backrest in starting position, and
  • 6 the embodiment according to 5 with synchronously inclined backrest and seat.
  • each other corresponding parts are in all figures with the same reference numerals Mistake.
  • The chair designed as an office chair 1 according to the 1 to 6 includes one with a in the 5 and 6 indicated stand connected backrest support 2 on which a two-part backrest 3 with an upper backrest area 3a and a lower backrest area 3b is held in an articulated manner. The backrest carrier 2 includes a lower support arm 20 and an articulated upper backrest handlebar 21 , The opposite the comparatively long, in the z-direction approximately vertically extending L-leg 20a Angled, in the z-direction horizontally extending comparatively short L-leg 20b carries a seat 4 ,
  • The upper backrest area 3a hereinafter referred to as backrest cushion backrest 3 is with the comparatively short lower backrest area 3b with the formation of a lumbar support 5 connected such that upon application of a contact force F in the direction of 2 Arrow oriented in the x-direction bulge 6 the lumbar support of the in 1 shown maximum degree of curvature in the in 2 Flattening degree is flattened.
  • This flexible connection between the comparatively long, upper backrest area 3a and the comparatively short, lower backrest area 3b is produced in the embodiment by a recessed back recess or recess 7 within the otherwise dimensionally stable or deformation-resistant - and thus rigid - backrest cushion 3 , Essential here is that both the upper backrest area 3a as well as the lower backrest area 3b correspondingly rigid or rigid, while the intermediate area in which the lumbar support 5 is flexible and in particular articulated. This flexibility or deformability in turn is such that in this area of the lumbar support 5 between the otherwise rigid upper backrest area and the likewise rigid lower backrest area 3b almost a (first) joint 8a one in the manner of a Vierge link chain effective articulation 8th is formed.
  • Like the first joint 8a there is also a second joint 8b on the back of the backrest and there in the (-) x-direction and in the z-direction below the first joint 8a , The other two joints 8c and 8d the four-jointed chain 8th are lean back on both sides of the upper backrest handlebar 21 , Specifically, this is the articulated connection between the support arm 20 and the backrest handlebar 21 forming third joint 8c in the z-direction above the first joint 8a and in (-) x-direction to the second joint 8b added.
  • The fourth joint 8d forms a hinged connection between the upper backrest handlebars 21 of the back support 20 and the top of the upper backrest area 3a , This fourth joint 8d is in the z-direction above the third joint 8c and in the z direction between the second joint 8b and the third joint 8c positioned. The formation of the four-jointed chain 8th associated rigid chain links are through the virtual connecting lines between the four joints 8a to 8d illustrated. The realization of these rigid joints is through the rigid handlebars 20 . 21 of the back support 20 on the one hand and through the rigid backrest areas 3a and 3b guaranteed on the other hand.
  • As from the representations of 1 and 2 can be seen causes a force exerted by the back of an operator pressing force F in the direction of arrow ((-) x-direction) pivoting of the upper backrest handlebar 21 around the third joint 8c with the result that the upper backrest area 3a is pulled in a z-direction vertically upwards. At the same time there is a pivoting of the lower backrest area 3b around the second joint 8b turn in (-) x-direction with the result that the first joint 8a also in (-) x direction on the in the representations according to the 1 to 4 fixed lower support arm 20 too moved. As a result, the degree of bulging of the bulge increases 6 the lumbar support 5 from the maximum bulge 6 according to 1 in the minimum bulge 6 according to 2 from. Here is the by the four-jointed chain 8th spanned surface increasingly smaller, as by comparing the representations of 1 and 2 is apparent.
  • The for a reversible change in the bulge 6 the lumbar support 5 required restoring force is generated by a spring element, which in principle at different locations or positions of the four-bar chain 8th can be arranged. So shows 3 alternative positions and embodiments of the spring element in the form of a leaf spring 9 , a tension spring 10 and / or a thigh spring 11 , When using the leaf spring 9 this is expediently in the area of the lumbar support 5 and there in the area of the first joint 8a the four-jointed chain 8th intended. A thigh spring 11 is suitably used in the region of the third joint 8c , Additionally or alternatively, when using the tension spring 10 this lean back between the two backrest areas 3a and 3b in the recess running transversely to the xz plane 7 provided and there on the one hand with the upper backrest area 3a and on the other hand with the lower backrest area 3b connected.
  • The otherwise with the embodiments according to the 1 and 2 same embodiment according to the 3 and 4 also has a headrest 12 on. This consists essentially of a turn approximately L-shaped angled support or support frame 13 and a pillow-like headrest, for example 14 , The headrest 12 is above the headrest head 14 opposite L-leg 13a of the supporting frame 13 at the lower support arm 20 of the back support 2 held. The one between this L-thigh 13a and the headrest head 14 wearing L-thighs 13b of the supporting frame 13 Ingested, in particular obtuse angle is dimensioned such that the actual headrest, ie the headrest main 14 in a backrest position with maximum arched lumbar support 5 in vertical or z-direction with the upper backrest area 3a Aligns like this 3 is apparent. In contrast, dominates the headrest head 14 in the in 4 Lehnenneigeposition shown the upper backrest area 3a in X direction.
  • The 5 and 6 show an embodiment of the functioning of the four-bar chain 8th realized backrest of the chair 1 with a synchronous mechanism 15 between the two backrest areas 3a . 3b and the seat 4 , The synchronous mechanism 15 essentially comprises two seat arms 16 . 17 , on the only schematically indicated seat support 18 are articulated. This is the front seat handlebar 16 over joints 16a and 16b with the seat 4 on the one hand or with the seat carrier 18 on the other hand articulated. Analog is the rear seat handlebar 17 over joints 17a and 17b with the seat 4 on the one hand or the seat carrier 19 on the other hand articulated.
  • As in 6 illustrates, causes the synchronous mechanism 15 a synchronous inclination movement of both the backrest and the seat 4 back and down. The relationships relative to the backrest itself with respect to the relative movement between the two backrest areas 3a and 3b as well as the two-part backrest carrier 2 corresponds to the movement behavior of the back Reject according to the 1 to 4 with a continuous decrease in the degree of curvature of the bulge 6 the lumbar support 5 with increasing contact pressure F or pressurization with the difference that at the same time also the backrest support 2 tilts backwards and downwards.
  • 1
    Office / chair
    2
    backrest support
    3
    Back / back pad
    3a
    upper backrest area
    3b
    lower backrest area
    4
    seat
    5
    lumbar support
    6
    bulge
    7
    Recess / -nehmung
    8th
    Four-bar chain / articulation
    8a
    first joint
    8b
    second joint
    8c
    third joint
    8d
    fourth joint
    9
    leaf spring
    10
    mainspring
    11
    Leg spring
    12
    headrest
    13
    Support / support stand
    13a, b
    L-leg
    14
    Headrests main / -polster
    15
    synchronous mechanism
    16
    seat link
    16a, b
    Joint / link
    17
    seat link
    17a, b
    Joint / link
    18
    seat support
    20
    support links
    20a, b
    L-leg
    21
    backrest link
    F
    contact force
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - DE 20004948 A1 [0003]

Claims (14)

  1. Backrest with two backrest areas ( 3a . 3b ), which form a joint connection ( 8th ) in the manner of a four-bar chain on a two-part backrest support ( 2 ) with a lower support arm ( 20 ) and with an upper backrest handlebar ( 21 ) are articulated such that between the backrest areas ( 3a . 3b ) a flexible lumbar support ( 5 ) is formed.
  2. Backrest according to claim 1, characterized in that a (first) joint ( 8a ) of the articulated connection ( 8th ), in particular leaning forwardly, between the upper backrest region ( 3a ) and the lower backrest area ( 3b ) is formed.
  3. Backrest according to claim 1 or 2, characterized in that a (second) joint ( 8b ) of the articulated connection ( 8th ), in particular leaning forwardly, between the lower back region ( 3b ) and the support arm ( 20 ) of the backrest carrier ( 2 ) is formed.
  4. Backrest according to one of claims 1 to 3, characterized in that a (third) joint ( 8c ) of the articulated connection ( 8th ), in particular lean back, between the support arm ( 20 ) and the backrest handlebar ( 21 ) of the backrest carrier ( 2 ) is formed.
  5. Backrest according to one of claims 1 to 4, characterized in that a (fourth) joint ( 8d ) of the articulated connection ( 8th ), in particular leaning back, between the upper backrest area ( 3a ) and the backrest handlebar ( 21 ) of the backrest carrier ( 2 ) is formed.
  6. Backrest according to one of claims 1 to 5, characterized in that the two backrest areas ( 3a . 3b ) are formed by at least approximately deformation resistant backrest cushion.
  7. Backrest according to one of claims 1 to 6, characterized in that the two backrest areas ( 3a . 3b ) to form an S-shaped support contour farthest on the front and on the back of the lehenrückseitig spaced from each other on the backrest support ( 2 ) are held articulated.
  8. Backrest according to one of claims 1 to 7, characterized in that the support arm ( 20 ) of the backrest carrier ( 2 ) is approximately L-shaped, wherein one of its L-legs ( 20a ) with the backrest support ( 21 ), wherein the other L-leg ( 20b ) for fastening a seat ( 4 ), and wherein in the region between the L-legs ( 20a . 20b ) one of the joints ( 8b ) of the articulated connection ( 8th ) is provided.
  9. Backrest according to one of claims 1 to 8, characterized by a spring element ( 9 . 10 . 11 ) for generating a directed in the direction of the lordosis of an operator restoring force (F).
  10. Backrest according to claim 9, characterized in that the spring element, in particular a leaf spring ( 9 ) or leg spring ( 11 ), in the area of one of the joints ( 8a to 8d ) of the articulated connection ( 8th ), in particular in the region of the first or third joint ( 8a respectively. 8b ), is provided.
  11. Backrest according to one of claims 1 to 10, characterized by a headrest ( 12 ) with a on the support arm ( 20 ) of the backrest carrier ( 2 ) supported support frame ( 13 ).
  12. Backrest according to claim 11, characterized in that the support frame ( 13 ) is angled such that the headrest ( 12 . 14 ) in a backrest position with maximum arched lumbar support ( 5 ) in the vertical direction (z) with the upper backrest region (z) 3a ) is aligned and in a Lehne leaning position the upper backrest area ( 3a ) lean forward on the front.
  13. Chair ( 1 ), in particular office chair, with a backrest ( 2 . 3 ) according to one of claims 1 to 12 and with a seat surface ( 4 ), wherein the degree of curvature of the bulge directed towards the back of a person ( 6 ) the lumbar support ( 5 ) in the upright sitting position of a person is maximum and depending on the person on the backrest ( 3 ) applied contact force (F) decreases.
  14. Chair ( 1 ) according to claim 13, with a synchronous mechanism ( 15 ) for the synchronous tilting movement of the backrest ( 2 . 3 ) and the seat ( 4 ) due to a pivoting of the backrest ( 2 . 3 ) from a vertical starting position into an inclined position, whereby with increasing inclination movement of the backrest ( 2 . 3 ) as a result of the pressure applied by a person (F), the degree of curvature of the bulge ( 6 ) the lumbar support ( 5 ) decreases.
DE200710044130 2007-09-15 2007-09-15 Backrest, in particular, of an office chair Withdrawn DE102007044130A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200710044130 DE102007044130A1 (en) 2007-09-15 2007-09-15 Backrest, in particular, of an office chair

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE200710044130 DE102007044130A1 (en) 2007-09-15 2007-09-15 Backrest, in particular, of an office chair
PCT/EP2008/006559 WO2009033535A1 (en) 2007-09-15 2008-08-08 Back rest, especially for an office chair
ES08801543T ES2375890T3 (en) 2007-09-15 2008-08-08 Support, in particular, of an office chair.
AT08801543T AT529020T (en) 2007-09-15 2008-08-08 Backrest, especially an office chair
EP08801543A EP2187782B1 (en) 2007-09-15 2008-08-08 Back rest, especially for an office chair

Publications (1)

Publication Number Publication Date
DE102007044130A1 true DE102007044130A1 (en) 2009-03-19

Family

ID=40202030

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200710044130 Withdrawn DE102007044130A1 (en) 2007-09-15 2007-09-15 Backrest, in particular, of an office chair

Country Status (5)

Country Link
EP (1) EP2187782B1 (en)
AT (1) AT529020T (en)
DE (1) DE102007044130A1 (en)
ES (1) ES2375890T3 (en)
WO (1) WO2009033535A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3556254A1 (en) * 2018-04-20 2019-10-23 Klöber GmbH Lumbar support for a seat, especially for office chairs

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
US9706845B2 (en) 2012-09-20 2017-07-18 Steelcase Inc. Chair assembly
GB2543565B (en) * 2015-10-23 2019-10-09 Ratstands Ltd Stackable chair
KR20180064752A (en) * 2016-12-06 2018-06-15 이상필 Chair for correcting turtle neck

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916897A1 (en) * 1979-04-07 1980-11-06 Otto Zapf Adjustable vehicle seat with reclining position - has hinged seat and back supports attached to plates sliding over base frame
GB2085719B (en) * 1980-08-20 1984-04-11 Antocks Lairn Ltd Adjustable chairs
DK0815778T3 (en) * 1996-06-28 1998-09-23 Steelcase Strafor Sa Improvements in systems for the differential bending of the backrest of office chairs
WO2000022959A1 (en) * 1998-10-20 2000-04-27 Protoned B.V. Chair mechanism
US7458637B2 (en) * 2004-06-10 2008-12-02 Steelcase Inc. Back construction with flexible lumbar
US7396079B2 (en) * 2005-03-08 2008-07-08 Steelcase Inc. Seating with shape-changing back support frame
DE202005019654U1 (en) * 2005-12-16 2007-04-26 König + Neurath AG Backrest and chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3556254A1 (en) * 2018-04-20 2019-10-23 Klöber GmbH Lumbar support for a seat, especially for office chairs

Also Published As

Publication number Publication date
EP2187782A1 (en) 2010-05-26
AT529020T (en) 2011-11-15
ES2375890T3 (en) 2012-03-07
WO2009033535A1 (en) 2009-03-19
EP2187782B1 (en) 2011-10-19

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