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CH413263A - Seating furniture with an adjustable backrest that can be adapted to the shape of the body - Google Patents

Seating furniture with an adjustable backrest that can be adapted to the shape of the body

Info

Publication number
CH413263A
CH413263A CH540161A CH540161A CH413263A CH 413263 A CH413263 A CH 413263A CH 540161 A CH540161 A CH 540161A CH 540161 A CH540161 A CH 540161A CH 413263 A CH413263 A CH 413263A
Authority
CH
Switzerland
Prior art keywords
seating furniture
furniture according
backrest
partial
backrests
Prior art date
Application number
CH540161A
Other languages
German (de)
Inventor
Alfred Dr Becker Otto
Original Assignee
Alfred Dr Becker Otto
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
Priority to DEB57483A priority Critical patent/DE1221772B/en
Application filed by Alfred Dr Becker Otto filed Critical Alfred Dr Becker Otto
Priority to CH540161A priority patent/CH413263A/en
Priority to GB16822/61A priority patent/GB925337A/en
Priority to US111322A priority patent/US3059971A/en
Priority to FR863225A priority patent/FR1298392A/en
Publication of CH413263A publication Critical patent/CH413263A/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/022Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/023Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C3/00Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20Chairs or stools with vertically-adjustable seats
    • A47C3/24Chairs or stools with vertically-adjustable seats with vertical spindle
    • 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
    • A47C7/402Support for the head or the back for the back adjustable in height
    • 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
    • A47C7/405Support for the head or the back for the back with double backrests
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)

Description

       

      Sitzmöbel    mit     verstellbarer,    an     die    Körperform     anpassbarer    Rückenlehne    Die Erfindung betrifft ein Sitzmöbel mit verstell  barer, an die Körperform     anpassbarer    Rückenlehne.  



  Es sind bereits Sitzmöbel mit Rücklehnen be  kannt, die einer bestimmten Körpergestalt etwa ent  sprechen, wenn der Sitzende eine bestimmte Haltung  einnimmt. Es ist jedoch     erwünscht,    dass die Sitzmö  bel auch den Bewegungen des Sitzenden, z. B. an  einem Schreibtisch, Rechnung tragen. Diesem Erfor  dernis der Anpassung der Rückenlehnen an die ver  schiedenen Körperhaltungen, die sich aus der Bewe  gung des Oberkörpers beim sitzenden Arbeiten erge  ben, werden die bekannten Sitzmöbel nicht oder nur  unzureichend gerecht. Es genügt nicht, der Rücken  lehne wie bei bekannten Sitzmöbeln eine bestimmte  Hohlform oder Schrägneigung zu geben. Die bekann  ten, in der Höhe verstellbaren elastischen Kreuzstüt  zen, wie sie insbesondere für Maschinenschreiberin  nen bekannt sind, entsprechen diesen Anforderungen  ebenfalls nicht.  



  Ziel der Erfindung ist die     Schaffung    eines Sitz  möbels der eingangs genannten Gattung mit einer  Rückenlehne, die möglichst genau den individuellen  Unterschieden, die sich aus der Körpergrösse und der       Gestallt    des Rückens des Einzelnen ergeben,     anpass-          bar    ist und die den Bewegungen des Arbeitenden  folgt, wobei sie, ohne diesen zu stören, eine ständige,  auf eine möglichst grosse Rückenfläche wirkende,  weiche Abstützung bietet.  



  Hierzu sieht die Erfindung vor, dass die Rücken  lehne in wenigstens zwei Teillehnen     unterteilt    ist,  welche unabhängig voneinander in der Höhe verstell  bar sowie vor- bzw. zurückschiebbar sind.  



  Bei einer bevorzugten     Ausführungsform    der Er  findung ist vorgesehen, dass die Teillehnen der     Rük-          kenlehne    durch voneinander unabhängige Tragarme  in Führungen unterhalb der Sitzfläche vor- und zu-    rückschiebbar gelagert sind und dass die Teillehnen  an den     zugehörigen    Trägern höhenverstellbar     ange-          bracht    sind.  



  Ausserdem können die Teillehnen unabhängig  voneinander um eine horizontale und zur     Lehnenflä-          che    parallele Achse schwenkbar angeordnet     sein.     



  Bei einer weiteren Ausführungsform ist vorgese  hen, dass die Tragarme     für    die Teillehnen federnd  ausgebildet sind.  



       Eine    zusätzliche Ausführungsform kann so aus  gebildet sein, dass die Teillehnen der     Rückenlehne     aus miteinander     scharnierartig    und     beispielsweise     federnd verbundenen Elementen bestehen, deren  Lage zueinander durch eine Blattfeder mit regulier  barer Spannung verändert werden kann.  



  Weiterhin kann vorgesehen sein, dass das Sitzteil  gegenüber dem tragenden Gestell vor- und zurück  schiebbar angeordnet ist und dass die relativ zuein  ander gleitenden Teile mit einem     Ueberzug    versehen  sind, wobei der     überzug    aus Plastik bestehen kann.  



  Ausführungsbeispiele der     Erfindung    werden     im     folgenden anhand der Zeichnung beschrieben.  



       Fig.1    zeigt einen in der Höhe verstellbaren  Drehstuhl in Rückenansicht, bestehend aus dem tra  genden     Drehfussgestell    1 mit     Fussring    2, Sitzteil 3  und Rückenlehne 4a, 4b. Diese Rückenlehne ist  zweiteilig gegliedert, wobei der untere Teil 4a der  Kreuzstützung und der obere Teil 4b der Abstützung  der     Körperpartien    oberhalb des Kreuzes dient. Die  Teile 4a, 4b sind jedes für sich einzeln an elastischen       Stahlrundstäben    5a bzw.<I>5b</I> in der Höhe     verschieb-          lich    durch Feststellschrauben 6a bzw. 6b, die mit  Brückenteilen<I>7a</I> bzw.<I>7b</I> die Rundstäbe<I>5a</I> bzw. 5b  an die Glieder 4a, 4b pressen, befestigt.  



  Wie aus     Fig.    2 und in grösserem     Massstabe    aus           Fig.    3 ersichtlich ist, verlaufen diese die Rückenlehne  tragenden Rundstäbe 5a und<I>5b</I> unter dem Sitz 3 so  durch mit entsprechenden Löchern versehene Win  kelstücke 8a, 8b hindurch, dass sie einzeln vor oder  rückwärts verschoben werden können (s.     Fig.3).          Hierdurch    ist es möglich, die Abstützung der indivi  duellen     Körperform    des Sitzenden (z. B. Hohlkreuz)  genau anzupassen.  



  Die Tragarme können auch     mittels    Zug- oder       Druckfedern,    die durch Schrauben reguliert werden,  abgefedert werden.  



  Die Teile 4a, 4b können ausser durch die bereits       erwähnte        Höhenverstellung    auch durch Schwenken  um     eine    horizontale Achse 9a, 9b sich der individuel  len Körpergestaltung der einzelnen     Rückenpartien     gemeinsam mit der bereits vorgenannten waagerech  ten     Verschieblichkeit    der einzelnen Rückenlehnen  glieder genauestens anpassen.  



  Da eine feste, konkave     Formbildung    der einzel  nen Glieder je nach der individuellen Rückengestal  tung nicht den Erfordernissen entsprechen kann, ist  weiterhin vorgesehen, die gegliederte Rückenlehne in       scharnierartig    miteinander verbundene elastische  Elemente aufzuteilen.  



  Die     Fig.4-7    zeigen ein Teil einer Rückenlehne,  bei welchem 3 Elemente 11a, 11b, 11c miteinander       scharnierartig    durch eingelassene Federn 12 verbun  den sind. An der Rückseite des Teiles ist eine Blatt  feder 13 so befestigt, dass sie in ihrer Mitte durch  eine     Regulierschraube    14. mehr oder minder stark  durchgebogen werden kann. Wird die Schraube ange  zogen, so werden die Elemente 11b und 11c mehr  nach aussen geschwenkt. Es kann somit ganz nach  Belieben eine mehr oder minder offene oder ge  schlossene Hohlform zur Anpassung an die Wölbung  des Rückens gebildet werden.  



  Die     Fig.    1, 2, 3, 8, 9, 10 zeigen schematisch ein  Sitzteil 3, das nach vorn und zurück bei gleichblei  bender Stellung des tragenden Gestelles 1 geschoben  werden kann. Dazu ist an dem tragenden Gestell ein  Schieber 15 befestigt, der in seitlichen Führungen 16  und 17 mit Nuten gleitet.  



  In den     Fig.    11, 12, 13 wird eine etwas andere  Ausführung des Schiebers und seiner Führung ge  zeigt. Der Schieber 18 besitzt U-förmige Seitenteile  19, an denen plastische Gleiter 20 angeordnet sind,  die sich in     U-förmigen    seitlichen Führungsschienen  21 bei dem Vor- und Zurückschieben des Sitzes be  wegen.



      Seating furniture with an adjustable backrest that can be adapted to the body shape The invention relates to seating furniture with an adjustable backrest that can be adapted to the body shape.



  Seating furniture with backrests are already known that correspond to a certain body shape, for example, when the person sitting assumes a certain posture. However, it is desirable that the Sitzmö bel also the movements of the sitter, for. B. at a desk. This requirement of adapting the backrests to the various postures that result from the movement of the upper body when working while sitting, the known seating furniture does not do justice to, or only insufficiently. It is not enough to give the backrest a certain hollow shape or inclination, as is the case with known seating furniture. The well-known, height-adjustable elastic Kreuzstüt zen, as they are particularly known for typists, do not meet these requirements either.



  The aim of the invention is to create a piece of seating furniture of the type mentioned at the outset with a backrest which can be adapted as precisely as possible to the individual differences resulting from the body size and the shape of the back of the individual and which follows the movements of the worker, without disturbing it, it offers constant, soft support that acts on the largest possible back surface.



  For this purpose, the invention provides that the backrest is subdivided into at least two partial backrests, which can be adjusted in height and pushed forwards or backwards independently of one another.



  In a preferred embodiment of the invention it is provided that the partial backrests of the backrest are supported so that they can be pushed forwards and backward by independent support arms in guides below the seat surface and that the partial backrests are attached to the associated supports so that they can be adjusted in height.



  In addition, the partial backrests can be arranged to be pivotable about a horizontal axis parallel to the backrest surface, independently of one another.



  In a further embodiment it is provided that the support arms for the partial backrests are designed to be resilient.



       An additional embodiment can be formed in such a way that the partial backrests of the backrest consist of hinge-like and, for example, resiliently connected elements, the position of which can be changed by a leaf spring with adjustable tension ble.



  Furthermore, it can be provided that the seat part is arranged so that it can be pushed back and forth with respect to the supporting frame and that the parts sliding relative to one another are provided with a cover, the cover being made of plastic.



  Embodiments of the invention are described below with reference to the drawing.



       Fig.1 shows a height-adjustable swivel chair in a rear view, consisting of the tra lowing swivel base frame 1 with foot ring 2, seat part 3 and backrest 4a, 4b. This backrest is divided into two parts, the lower part 4a serving to support the cross and the upper part 4b to support the parts of the body above the cross. The parts 4a, 4b are each individually adjustable in height on elastic steel rods 5a or <I> 5b </I> by means of locking screws 6a or 6b, which are connected to bridge parts <I> 7a </I> or <I> 7b </I> press the round bars <I> 5a </I> or 5b onto the links 4a, 4b.



  As can be seen from Fig. 2 and on a larger scale from Fig. 3, these round bars 5a and <I> 5b </I> carrying the backrest extend under the seat 3 through angular pieces 8a, 8b provided with corresponding holes that they can be moved individually forwards or backwards (see Fig. 3). This makes it possible to precisely adapt the support to the individual body shape of the person sitting (e.g. hollow back).



  The support arms can also be cushioned by means of tension or compression springs, which are regulated by screws.



  The parts 4a, 4b can except by the already mentioned height adjustment by pivoting about a horizontal axis 9a, 9b of the individuel len body design of the individual back parts together with the aforementioned horizontal th displaceability of the individual backrests members precisely adjust.



  Since a solid, concave shape of the individual limbs can not meet the requirements depending on the individual back design, it is also provided to divide the articulated backrest into hinge-like interconnected elastic elements.



  4-7 show a part of a backrest in which 3 elements 11a, 11b, 11c are connected to one another in a hinge-like manner by means of embedded springs 12. On the back of the part a leaf spring 13 is attached so that it can be bent more or less strongly in its center by a regulating screw 14. If the screw is tightened, the elements 11b and 11c are pivoted more outward. A more or less open or closed hollow shape to adapt to the curvature of the back can thus be formed as desired.



  1, 2, 3, 8, 9, 10 show schematically a seat part 3 which can be pushed forwards and backwards with the supporting frame 1 in the same position. For this purpose, a slide 15 is attached to the supporting frame, which slides in lateral guides 16 and 17 with grooves.



  11, 12, 13 shows a slightly different embodiment of the slide and its guide ge. The slide 18 has U-shaped side parts 19 on which plastic sliders 20 are arranged, which be in U-shaped lateral guide rails 21 when sliding the seat back and forth.


    

Claims (1)

PATENTANSPRUCH Sitzmöbel mit verstellbarer, an die Körperform anpassbarer Rückenlehne, dadurch gekennzeichnet, dass die Rückenlehne in wenigstens zwei Teillehnen <I>(4a, 4b)</I> unterteilt ist, welche unabhängig voneinander in der Höhe verstellbar sowie vor- bzw. zurück schiebbar sind. UNTERANSPRÜCHE 1. Sitzmöbel nach Patentanspruch, dadurch ge kennzeichnet, dass die Teillehnen<I>(4a, 4b)</I> der Rük- kenlehne durch voneinander unabhängige Tragarme <I>(5a, 5b)</I> in Führungen (8a, 8b) unterhalb der Sitzflä che vor- und zurückschiebbar gelagert sind. 2. PATENT CLAIM Seating furniture with an adjustable backrest that can be adapted to the body shape, characterized in that the backrest is divided into at least two partial backrests <I> (4a, 4b) </I>, which are independently adjustable in height and can be pushed forwards or backwards are. SUBClaims 1. Seating furniture according to claim, characterized in that the partial backrests <I> (4a, 4b) </I> of the backrest are supported by independent support arms <I> (5a, 5b) </I> in guides (8a , 8b) are mounted to slide back and forth below the Sitzflä surface. 2. Sitzmöbel nach Unteranspruch 1, dadurch ge kennzeichnet, dass die Teillehnen <I>(4a, 4b)</I> an dem zugehörigen Tragarm (5a bzw. 5b) höhenverstellbar angebracht sind. 3. Sitzmöbel nach Patentanspruch, dadurch ge kennzeichnet, dass die Teillehnen<I>(4a, 4b)</I> unabhän gig voneinander um eine horizontale und zur Leh- nenfläche parallele Achse (9q, <I>9b)</I> schwenkbar sind. 4. Sitzmöbel nach Unteranspruch 1 oder 2, da durch gekennzeichnet, dass die Tragarme<I>(5a,</I> 5b) für die Teillehnen federnd ausgebildet sind. 5. Seating furniture according to dependent claim 1, characterized in that the partial backrests <I> (4a, 4b) </I> are attached in a height-adjustable manner to the associated support arm (5a or 5b). 3. Seating furniture according to claim, characterized in that the partial backrests <I> (4a, 4b) </I> independently of one another about a horizontal axis (9q, <I> 9b) </I> parallel to the backrest surface are pivotable. 4. Seating furniture according to dependent claim 1 or 2, characterized in that the support arms <I> (5a, </I> 5b) are designed to be resilient for the partial backrests. 5. Sitzmöbel nach Unteranspruch 4, dadurch ge kennzeichnet, dass die Tragarme<I>(5a, 5b)</I> aus Rund material bestehen, deren die jeweilige Teillehne tra gende Schenkel in Form eines kopfstehenden U aus gebildet sind. 6. Sitzmöbel nach Unteranspruch 5, dadurch ge kennzeichnet, dass die Tragarme unter Verwendung von mittels Schrauben regulierbarer Zug- oder Druckfedern am Gestell befestigt sind. 7. Sitzmöbel nach Patentanspruch, dadurch ge kennzeichnet, dass die Teillehnen<I>(4a, 4b)</I> der Rük- kenlehne aus miteinander scharnierartig und z. B. federnd verbundenen Elementen (11a, 11b, 11c) be stehen, deren Lage zueinander durch eine Blattfeder mit regulierbarer Spannung verändert werden kann. B. Seating furniture according to dependent claim 4, characterized in that the support arms <I> (5a, 5b) </I> consist of round material, the legs of which support the respective partial backrest are formed in the form of an upside-down U. 6. Seating furniture according to dependent claim 5, characterized in that the support arms are attached to the frame using adjustable tension or compression springs by means of screws. 7. Seating furniture according to claim, characterized in that the partial backrests <I> (4a, 4b) </I> of the backrest hinge-like and z. B. resiliently connected elements (11a, 11b, 11c) be available whose position to each other can be changed by a leaf spring with adjustable tension. B. Sitzmöbel nach Patentanspruch und Unteran spruch 1, dadurch gekennzeichnet, dass das Sitzteil (3) gegenüber dem tragenden Gestell vor- und zu rückschiebbar ist. 9. Sitzmöbel nach Unteranspruch 8, dadurch ge kennzeichnet, dass die relativ zueinander gleitenden Teile mit einem Überzug (20) versehen sind. 10. Sitzmöbel nach Unteranspruch 9, dadurch gekennzeichnet, dass der Überzug aus Plastik besteht. Seating furniture according to patent claim and sub-claim 1, characterized in that the seat part (3) can be pushed forwards and backwards with respect to the supporting frame. 9. Seating furniture according to dependent claim 8, characterized in that the parts sliding relative to one another are provided with a cover (20). 10. Seating furniture according to dependent claim 9, characterized in that the cover consists of plastic.
CH540161A 1960-04-13 1961-05-08 Seating furniture with an adjustable backrest that can be adapted to the shape of the body CH413263A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEB57483A DE1221772B (en) 1960-04-13 1960-04-13 Seating
CH540161A CH413263A (en) 1960-04-13 1961-05-08 Seating furniture with an adjustable backrest that can be adapted to the shape of the body
GB16822/61A GB925337A (en) 1960-04-13 1961-05-09 Improvements in or relating to seats each having an adjustable back
US111322A US3059971A (en) 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members
FR863225A FR1298392A (en) 1960-04-13 1961-05-29 Chair or similar piece of furniture comprising a subdivided, elastic and movable backrest as well as a sliding seat

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEB57483A DE1221772B (en) 1960-04-13 1960-04-13 Seating
CH540161A CH413263A (en) 1960-04-13 1961-05-08 Seating furniture with an adjustable backrest that can be adapted to the shape of the body
GB16822/61A GB925337A (en) 1960-04-13 1961-05-09 Improvements in or relating to seats each having an adjustable back
US111322A US3059971A (en) 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members
FR863225A FR1298392A (en) 1960-04-13 1961-05-29 Chair or similar piece of furniture comprising a subdivided, elastic and movable backrest as well as a sliding seat

Publications (1)

Publication Number Publication Date
CH413263A true CH413263A (en) 1966-05-15

Family

ID=45953337

Family Applications (1)

Application Number Title Priority Date Filing Date
CH540161A CH413263A (en) 1960-04-13 1961-05-08 Seating furniture with an adjustable backrest that can be adapted to the shape of the body

Country Status (5)

Country Link
US (1) US3059971A (en)
CH (1) CH413263A (en)
DE (1) DE1221772B (en)
FR (1) FR1298392A (en)
GB (1) GB925337A (en)

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US4744603A (en) * 1986-04-10 1988-05-17 Steelcase Inc. Chair shell with selective back stiffening
US5385388A (en) * 1991-11-12 1995-01-31 Steelcase Inc. Split back chair

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IT1219524B (en) * 1988-04-12 1990-05-18 Giordano Pasutto ADJUSTABLE LUMBAR CUSHION FOR SEATS, ARMCHAIRS COORDINATED FOR WRITING AND SIMILAR, FOR PREVENTIVE AND ADJUVANT ACTION IN THE CURATIVE OF ARTHROSIS, HERNIAS DISCALS, SCOLIOSIS OF THE VERTEBRAL COLUMN
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US6146317A (en) * 1996-03-28 2000-11-14 Prusick; Vincent R. Exercising device
US5730688A (en) * 1996-03-28 1998-03-24 Prusick; Vincent R. Portable abdominal-lumbar exercise device
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AU2001288130A1 (en) * 2000-09-19 2002-04-02 Han-Keel Yoo Chair for correcting an improper alignment of spinal vertebrae and method for correcting an improper alignment of spinal vertebrae by means of the chair
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Also Published As

Publication number Publication date
FR1298392A (en) 1962-07-13
DE1221772B (en) 1966-07-28
US3059971A (en) 1962-10-23
GB925337A (en) 1963-05-08

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