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EP0815779A2 - A movable backrest - Google Patents

A movable backrest Download PDF

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Publication number
EP0815779A2
EP0815779A2 EP97108086A EP97108086A EP0815779A2 EP 0815779 A2 EP0815779 A2 EP 0815779A2 EP 97108086 A EP97108086 A EP 97108086A EP 97108086 A EP97108086 A EP 97108086A EP 0815779 A2 EP0815779 A2 EP 0815779A2
Authority
EP
European Patent Office
Prior art keywords
backrest
bearing
parts
bar
shield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97108086A
Other languages
German (de)
French (fr)
Other versions
EP0815779B1 (en
EP0815779A3 (en
Inventor
Manfred Schlegel
Siegfried Donner
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.)
Sedus Stoll AG
Original Assignee
Sedus Stoll 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 Sedus Stoll AG filed Critical Sedus Stoll AG
Publication of EP0815779A2 publication Critical patent/EP0815779A2/en
Publication of EP0815779A3 publication Critical patent/EP0815779A3/en
Application granted granted Critical
Publication of EP0815779B1 publication Critical patent/EP0815779B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks

Definitions

  • the invention relates to a movable on a backrest bar suspended backrest, the backrest shield made of horizontal Sections exists.
  • Such backrests particularly in chairs for the office and Commercial area have the purpose of optimally adapting to the changing posture of the user.
  • the backrest is a further development according to EP-B 107627 which is divided into movable horizontal sections is.
  • EP-B 308538 there the backrest is suspended so that it versus longitudinal (sagittal), turning (torsion) and transverse (transversal) posture changes supporting the body yields.
  • DE 3025916 A1 shows a movable on a backrest bar suspended backrest, which consists of two horizontal Sections exist, the top section being the shape a "T”, and the bottom section has the shape of a "U”, and the "U” with its two legs the vertical part of the "T”.
  • the two sections are against each other pivoted on two sides of the backrest bar Bearings attached.
  • a spring band causes the two Sections are resiliently pivotable.
  • This known backrest only adjusts to sagittal movements of the User, and the assembly is relatively expensive.
  • backrests of the known type to improve in that it with modest effort and are therefore inexpensive to manufacture, and without further on conventional support structures for height-adjustable backrests of office chairs can be attached can.
  • the essence of the invention is that the storage of the both parts of the backrest shield is designed such that by simply exchanging a simple element, namely the bearing role, either just a sagittal, or but also additionally a tordale and transversal The backrest moves.
  • Fig. 1 shows the shield of a backrest, which consists of a upper part 1 and a lower part 2.
  • the parts 1,2 meet in the horizontal joint 3.
  • the backrest is suspended from the backrest bar 8, which is telescopic adjustable in height in the backrest shaft 15.
  • Backrest rod 8 and backrest shaft 15 have bores 19 Fixing the backrest height set in each case.
  • the parts 1.2 of the backrest shield are articulated over the Bearing parts 4.5 connected together.
  • a bearing rod 7 is stored, which is still suitable Openings of the bearing piece 9 is stored.
  • This stock 9 is attached to the backrest bar 8 and by means of a Bracket 13 secured.
  • the bracket 13 is pivotable in the Backrest bar 8 hooked in, and is on part 1 of Backrest plate by means of the screw-on bracket holder 14 attached.
  • the bearing piece 9 has on both sides of the backrest bar 8 Side panels 10 on. These side parts 10 have one hand Above stops, the upper part 1 of the backrest shield can concern. On the other hand, they have running down Cheeks on which the fixing block 16 is pivotally suspended is. This has a (not shown) nose, which in the holes 19 of the backrest bar 8 and the backrest shaft 15 can be locked. He also grips the backrest bar 8 and backrest shaft 15 and thus serves as a stop of the lower part 2 of the backrest shield.
  • FIG. 3 shows the view from FIG. 2, but with the left bearing open.
  • the bearing parts 4.5 consist of the Parts 1,2 connected bearing shells 11,12, and attachable Covering shells 17.18.
  • the inner bearing shells 11 are with connected to the upper part 1 of the backrest shield, the outer Bearing shells 12 are connected to the lower part 2.
  • the Bearing cups 11 are therefore the "upper bearing cup” Bearing shells 12 called “lower bearing shell”, accordingly the corresponding cover shells 17, 18. Are inside the bearing rollers 6.
  • the parts 1.2 of the backrest shield, the bearing parts 4.5, and the bearing piece 9 are preferably injection molded parts and are made of polypropylene or the stiffer polystyrene.
  • Bearing bar 7, backrest bar 8 and backrest shaft 15, and bracket 13 are made of metal.
  • the bearing rollers 6 can now also be made of polystyrene or some other rigid material. Then can the parts 1,2 of the backrest shield against each other around the bearings 4.5 swing, and the entire backrest shield around the im Bearing piece 9 bearing rod 7. The back follows only sagittal body movements.
  • the bearing rollers consist of an elastic one Material, especially rubber. Then the bearing rod 7 movable that the backrest also torsional or transverse movements can follow the user's back.
  • Fig. 1 the parts 1,2 of the backrest shield in reinforcing webs on, so that a Rib grid or a sandwich-like honeycomb structure arises.
  • Clips, bolts, noses and hooks provided that essentially the connection with the serve (not shown) back of the backrest.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs Characterized By Structure (AREA)
  • Massaging Devices (AREA)

Abstract

This novel backrest can be moved on its back rod (8). It has upper- (1) and lower- (2) sections, butting together in a horizontal joint (3). The parts pivot together on mountings on either side of the rod (8). One of these (4) is fastened to the upper section, the other (5) to the lower. Within the mountings, cylindrical bearing rollers (6) are fitted. A further mounting (9) fastens to the upper end of the back rod. It has an opening penetrated by the bearing rod (7). This is also carried in the bearing rollers, which comprise either a rigid or an elastic material. Preferably, the mountings are injection moulded polypropylene or polystyrene. Preferably the bearing rollers are rubber.

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine beweglich an einem Lehnenstab aufgehängte Rückenlehne, deren Lehnenschild aus horizontalen Abschnitten besteht.The invention relates to a movable on a backrest bar suspended backrest, the backrest shield made of horizontal Sections exists.

Derartige Lehnen, die insbesondere bei Stühlen für den Büro- und Gewerbebereich zur Anwendung kommen, haben den Zweck, sich möglichst optimal der sich verändernden Körperhaltung des Benutzers anzupassen.Such backrests, particularly in chairs for the office and Commercial area have the purpose of optimally adapting to the changing posture of the user.

STAND DER TECHNIKSTATE OF THE ART

Lehnen der genannten Art sind prinzipiell beschrieben in der Norm DIN 4551 für Bürostühle mit Lehnen-Pendelgelenk.Backrests of the type mentioned are described in principle in the Standard DIN 4551 for office chairs with backrest pendulum joint.

Eine Weiterentwicklung stellt die Lehne nach EP-B 107627 dar, die in bewegliche horizontale Abschnitte aufgeteilt ist.The backrest is a further development according to EP-B 107627 which is divided into movable horizontal sections is.

Eine besonders komfortable Lösung ist in EP-B 308538 beschrieben: dort ist die Lehne derart aufgehängt, daß sie gegenüber Längs-(Sagittal-), Dreh-(Torsions-) und Quer-(Transversal-)Haltungsveränderungen des Körpers stützend nachgibt.A particularly convenient solution is in EP-B 308538 described: there the backrest is suspended so that it versus longitudinal (sagittal), turning (torsion) and transverse (transversal) posture changes supporting the body yields.

Obwohl sich diese bekannte Lösung auf dem Markt und in der Praxis hervorragend bewährt hat, haftet ihr der Nachteil an, daß sie hinsichtlich ihrer konstruktiven Ausführung und damit auch in Bezug auf Herstellung und Montage noch relativ aufwendig ist. Sie ist auch nicht kompatibel mit den gängigen, auf dem Markt befindlichen höhenverstellbaren Träger-Konstruktionen für Lehnen von Bürostühlen.Although this known solution is on the market and in the Practice has proven to be excellent, it has the disadvantage that they are regarding their constructive execution and thus still relative in terms of manufacture and assembly is complex. It is also not compatible with the common height adjustable on the market Beam constructions for backrests of office chairs.

Die DE 3025916 A1 zeigt eine beweglich an einem Lehnenstab aufgehängte Rückenlehne, welche aus zwei horizontalen Abschnitten besteht, wobei der obere Abschnitt die Form eines "T", und der untere Abschnitt die Form eines "U" hat, und das "U" mit seinen beiden Schenkeln den senkrechten Teil des "T" umgreift. Die beiden Abschnitte sind gegeneinander schwenkbar an zwei beidseits des Lehnenstabes angeordneten Lagern befestigt. Ein Federband bewirkt, daß die beiden Abschnitte federnd gegeneinander schwenkbar sind.DE 3025916 A1 shows a movable on a backrest bar suspended backrest, which consists of two horizontal Sections exist, the top section being the shape a "T", and the bottom section has the shape of a "U", and the "U" with its two legs the vertical part of the "T". The two sections are against each other pivoted on two sides of the backrest bar Bearings attached. A spring band causes the two Sections are resiliently pivotable.

Diese bekannt Lehne paßt sich nur sagittalen Bewegungen des Benutzers an, und die Montage ist relativ aufwendig.This known backrest only adjusts to sagittal movements of the User, and the assembly is relatively expensive.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Es ist die Aufgabe der Erfindung, Lehnen der bekannten Art dahingehend zu verbessern, daß sie mit bescheidenem Aufwand und damit kostengünstig herstellbar sind, und ohnen weiteres an konventionellen Trägerkonstruktionen für höhenverstellbare Lehnen von Bürostühlen angebracht werden können.It is the object of the invention, backrests of the known type to improve in that it with modest effort and are therefore inexpensive to manufacture, and without further on conventional support structures for height-adjustable backrests of office chairs can be attached can.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 und der Unteransprüche gelöst.This object is achieved by the features of claim 1 and of the subclaims solved.

Der Kern der Erfindung besteht darin, daß die Lagerung der beiden Teile des Lehnenschildes derart konzipiert ist, daß durch den simplen Austausch eines einfachen Elementes, nämlich der Lagerrolle, entweder nur eine sagittale , oder aber auch zusätzlich noch eine tordale und transversale Beweglichkeit der Lehne entsteht. The essence of the invention is that the storage of the both parts of the backrest shield is designed such that by simply exchanging a simple element, namely the bearing role, either just a sagittal, or but also additionally a tordale and transversal The backrest moves.

KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS

Nachstehend wird die Erfindung anhand eines in Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigt:

Fig.1
eine perspektivische Gesamtansicht einer Rückenlehne nach der Erfindung von hinten,
Fig.2
eine vergrößerte Ansicht eines Teiles der in Fig 1 dargestellten Rückenlehne, und
Fig.3
eine Ansicht wie in Fig.2, jedoch mit geöffnetem Lager für den Lagerstab.
The invention is explained in more detail below on the basis of an exemplary embodiment shown in the drawings. It shows:
Fig. 1
an overall perspective view of a backrest according to the invention from behind,
Fig. 2
an enlarged view of part of the backrest shown in Fig. 1, and
Fig. 3
a view as in Figure 2, but with the bearing for the bearing rod open.

WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS OF CARRYING OUT THE INVENTION

Fig. 1 zeigt den Schild einer Rückenlehne, der aus einem oberen Teil 1 und einem unteren Teil 2 besteht. Die Teile 1,2 stoßen in der horizontal verlaufenden Fuge 3 aneinander.Fig. 1 shows the shield of a backrest, which consists of a upper part 1 and a lower part 2. The parts 1,2 meet in the horizontal joint 3.

Die Lehne ist aufgehängt am Lehnenstab 8, der teleskopartig höhenverstellbar im Lehnenschaft 15 gehaltert ist.The backrest is suspended from the backrest bar 8, which is telescopic adjustable in height in the backrest shaft 15.

Lehnenstab 8 und Lehnenschaft 15 weisen Bohrungen 19 zur Fixierung der jeweils eingestellten Lehnenhöhe auf.Backrest rod 8 and backrest shaft 15 have bores 19 Fixing the backrest height set in each case.

Die Teile 1,2 des Lehnenschildes sind gelenkig über die Lagerteile 4,5 miteinander verbunden. In den Lagerteilen 4,5 ist ein Lagerstab 7 gelagert, der weiterhin in geeigneten Öffnungen des Lagerstücks 9 gelagert ist. Dieses Lagerstück 9 ist auf den Lehnenstab 8 aufgesteckt und mittels eines Bügels 13 gesichert. Der Bügel 13 ist schwenkbar in den Lehnenstab 8 eingehängt, und wird am Teil 1 des Lehnenschildes mittels des aufschraubbaren Bügelhalters 14 befestigt.The parts 1.2 of the backrest shield are articulated over the Bearing parts 4.5 connected together. In the bearing parts 4.5 a bearing rod 7 is stored, which is still suitable Openings of the bearing piece 9 is stored. This stock 9 is attached to the backrest bar 8 and by means of a Bracket 13 secured. The bracket 13 is pivotable in the Backrest bar 8 hooked in, and is on part 1 of Backrest plate by means of the screw-on bracket holder 14 attached.

Das Lagerstück 9 weist beidseits des Lehnenstabes 8 Seitenteile 10 auf. Diese Seitenteile 10 haben einerseits oben Anschläge, die am oberen Teil 1 des Lehnenschildes anliegen können. Andererseits haben sie nach unten laufende Wangen, an denen schwenkbar der Fixierblock 16 aufgehängt ist. Dieser weist eine (nicht gezeichnete) Nase auf, die in die Bohrungen 19 des Lehnenstabes 8 und des Lehnenschaftes 15 eingerastet werden kann. Außerdem umgreift er Lehnenstab 8 und Lehnenschaft 15 und dient somit als Anschlag des unteren Teiles 2 des Lehnenschildes.The bearing piece 9 has on both sides of the backrest bar 8 Side panels 10 on. These side parts 10 have one hand Above stops, the upper part 1 of the backrest shield can concern. On the other hand, they have running down Cheeks on which the fixing block 16 is pivotally suspended is. This has a (not shown) nose, which in the holes 19 of the backrest bar 8 and the backrest shaft 15 can be locked. He also grips the backrest bar 8 and backrest shaft 15 and thus serves as a stop of the lower part 2 of the backrest shield.

In Figur 2 ist der zentrale Teil der mit Bezug auf Fig.1 beschriebenen Rückenlehne in vergrößerter Darstellung gezeigt. Alle Lagerteile 4,5 sind geschlossen.In Figure 2, the central part is that with reference to Figure 1 described backrest in an enlarged view shown. All bearing parts 4,5 are closed.

In Fig. 3 ist wiederum die Ansicht aus Fig. 2 dargestellt, jedoch mit geöffnetem linkem Lager.3 shows the view from FIG. 2, but with the left bearing open.

Wie ersichtlich, bestehen die Lagerteile 4,5 aus mit den Teilen 1,2 verbundenen Lagerschalen 11,12, und aufsetzbaren Abdeckschalen 17,18. Die inneren Lagerschalen 11 sind mit dem oberen Teil 1 des Lehnenschildes verbunden, die äußeren Lagerschalen 12 sind mit dem unteren Teil 2 verbunden. Die Lagerschalen 11 werden daher "obere Lagerschale" die Lagerschalen 12 "untere Lagerschale" genannt, entsprechend die korrespondierenden Abdeckschalen 17,18. Innen befinden sich die Lagerrollen 6.As can be seen, the bearing parts 4.5 consist of the Parts 1,2 connected bearing shells 11,12, and attachable Covering shells 17.18. The inner bearing shells 11 are with connected to the upper part 1 of the backrest shield, the outer Bearing shells 12 are connected to the lower part 2. The Bearing cups 11 are therefore the "upper bearing cup" Bearing shells 12 called "lower bearing shell", accordingly the corresponding cover shells 17, 18. Are inside the bearing rollers 6.

Die Teile 1,2 des Lehnenschildes, die Lagerteile 4,5, und das Lagerstück 9 sind vorzugsweise Spritzgußteile und bestehen aus Polypropylen oder dem steiferen Polystyrol.The parts 1.2 of the backrest shield, the bearing parts 4.5, and the bearing piece 9 are preferably injection molded parts and are made of polypropylene or the stiffer polystyrene.

Lagerstab 7, Lehnenstab 8 und Lehnenschaft 15, sowie Bügel 13 bestehen aus Metall.Bearing bar 7, backrest bar 8 and backrest shaft 15, and bracket 13 are made of metal.

Die Lagerrollen 6 können nun entweder auch aus Polystyrol oder einem anderen starren Material bestehen. Dann können die Teile 1,2 des Lehnenschildes gegeneinander um die Lager 4,5 schwingen, und der gesamte Lehnenschild um den im Lagerstück 9 gelagerten Lagerstab 7. Die Lehne folgt also nur sagittalen Körperbewegungen.The bearing rollers 6 can now also be made of polystyrene or some other rigid material. Then can the parts 1,2 of the backrest shield against each other around the bearings 4.5 swing, and the entire backrest shield around the im Bearing piece 9 bearing rod 7. The back follows only sagittal body movements.

Oder die Lagerrollen bestehen aus einem elastischen Material, insbesondere Gummi. Dann wird der Lagerstab 7 so beweglich, daß die Lehne auch Torsions- oder Transversal-Bewegungen des Rückens des Benutzers folgen kann.Or the bearing rollers consist of an elastic one Material, especially rubber. Then the bearing rod 7 movable that the backrest also torsional or transverse movements can follow the user's back.

Es entsteht also in sehr einfacher Weise eine voll dynamische dorsokinetische Rückenlehne.So a full is created in a very simple manner dynamic dorsokinetic backrest.

Durch die beschriebene kosntruktive Konzeption kann die Montage in sehr vorteilhafter Weise wie folgt ausgeführt werden:Through the described constructive conception the Assembly carried out in a very advantageous manner as follows will:

Es wird zuerst der Lagerstab 7 in die dafür vorgesehenen Öffnungen des Lagerstücks 9 und in die Lagerrollen 6 eingeführt. Sodann werden die Lagerrollen 6 in die Lagerschalen 11,12 eingelegt, und die Lager mit den Abdeckschalen 17,18 verschlossen. Die äußeren Öffnungen der Lagerteile 4,5 sind kleiner als der Durchmesser der Lagerrollen 6, sodaß diese in den Lagerteilen 4,5 auch gegen seitliches Verschieben gesichert sind.It is first the bearing rod 7 in the intended Openings of the bearing piece 9 and into the bearing rollers 6 introduced. Then the bearing rollers 6 in the Bearing cups 11, 12 inserted, and the bearings with the Covering shells 17, 18 closed. The outer openings of the Bearing parts 4.5 are smaller than the diameter of the Bearing rollers 6, so that they also counter in the bearing parts 4.5 lateral displacement are secured.

Sodann wird der Lehnenstab 8 in die dafür vorgesehene Tasche des Lagerstückes 9 eingesteckt, und die Verbindung mittels Einschwenken des Bügels 13 in den Bügelhalter 14 gesichert.Then the backrest bar 8 is in the pocket provided for it the bearing piece 9 inserted, and the connection by means of Swinging the bracket 13 into the bracket holder 14 secured.

Wie aus den Zeichnungen, insbesondere Fig. 1, auch ersichtlich ist, weisen die Teile 1,2 des Lehnenschildes in üblicher Weise verstärkende Stege auf, sodaß ein Rippenraster bzw. eine sandwichartige Wabenstruktur entsteht. Ferner sind Clipse, Bolzen, Nasen und Haken vorgesehen, die im wesentlichen der Verbindung mit dem (nicht gezeichneten) Rückteil der Lehne dienen. As from the drawings, in particular Fig. 1, too can be seen, the parts 1,2 of the backrest shield in reinforcing webs on, so that a Rib grid or a sandwich-like honeycomb structure arises. There are also clips, bolts, noses and hooks provided that essentially the connection with the serve (not shown) back of the backrest.

BezeichnungslisteLabel list

11
Lehnenschild, oberer TeilBackrest shield, upper part
22nd
Lehnenschild, unterer TeilBackrest shield, lower part
33rd
FugeGap
44th
oberes Lagerteilupper bearing part
55
unteres Lagerteillower bearing part
66
LagerrolleStorage role
77
LagerstabBearing rod
88th
LehnenstabBackrest bar
99
LagerstückStock
1010th
Seitenteil des LagerstücksSide part of the bearing piece
1111
obere Lagerschaleupper bearing shell
1212th
untere Lagerschalelower bearing shell
1313
Bügelhanger
1414
BügelhalterBracket holder
1515
LehnenschaftMortgage
1616
FixierblockFixing block
1717th
obere Abdeckschaleupper cover
1818th
untere Abdeckschalelower cover
1919th
Bohrungen zur HöhenverstellungHoles for height adjustment

Claims (8)

1. Beweglich an einem Lehnenstab (8) aufgehängte Rückenlehne, welche aus horizontalen Abschnitten besteht,
dadurch gekennzeichnet, daß der Lehnenschild aus einem oberen Teil (1) und einem unteren Teil (2) besteht, welche in einer horizontal verlaufenden Fuge (3) aneinanderstoßen, die beiden Teile (1,2) gegeneinander schwenkbar an zwei beidseits des Lehnenstabes (8) angeordneten Lagern befestigt sind, wobei ein Lager aus einem ersten, am oberen Lehnenteil (1) befestigten Lagerteil (4), und einem zweiten, am unteren Lehnenteil (2) befestigten Lagerteil (5), sowie einer in das Innere der beiden Lagerteile (4,5) eingepaßten kreiszylindrischen Lagerrolle (6) besteht, ein Lagerstück (9) vorgesehen ist, das einerseits am oberen Ende des Lehnenstabes (8) befestigt ist, und andererseits Öffnungen aufweist, welche von einem Lagerstab (7) durchtreten werden, der auch in den Lagerrollen (6) der Lagerteile (4,5) gelagert ist, und die Lagerrollen (6) entweder aus einem starren oder einem elastischen Material bestehen. 1. movably suspended on a backrest bar (8), which consists of horizontal sections,
characterized in that the backrest shield consists of an upper part (1) and a lower part (2) which abut each other in a horizontally extending joint (3), the two parts (1, 2) are pivotally attached to one another on two bearings arranged on both sides of the backrest bar (8), a bearing comprising a first bearing part (4) fastened to the upper backrest part (1) and a second one to the lower backrest part ( 2) fixed bearing part (5) and a circular cylindrical bearing roller (6) fitted into the interior of the two bearing parts (4, 5), A bearing piece (9) is provided, which is fastened on the one hand to the upper end of the backrest bar (8) and, on the other hand, has openings through which a bearing bar (7) passes, which is also in the bearing rollers (6) of the bearing parts (4, 5 ) is stored, and the bearing rollers (6) consist of either a rigid or an elastic material. 2. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerteile (4,5) jeweils aus einer am Lehnenschild befestigten Lagerschale (11,12), und damit korrespondierenden, aufsetzbaren Abdeckschalen (17,18) bestehen. 2. Backrest according to claim 1, characterized in that the bearing parts (4, 5) each consist of a bearing shell (11, 12) attached to the backrest shield, and thus corresponding, attachable cover shells (17, 18). 3. Rückenlehne nach Anspruch 2, dadurch gekennzeichnet, daß die Außenöffnungen der Lagerschalen (11,12) und der Abdeckschalen (17,18) einen kleineren Durchmesser haben als die Lagerrollen (6). 3. Backrest according to claim 2, characterized in that the outer openings of the bearing shells (11, 12) and the cover shells (17, 18) have a smaller diameter than the bearing rollers (6). 4. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß das Lagerstück (9) eine nach unten geöffnete Tasche aufweist, in welche das obere Ende des Lehnenstabes (8) eingeführt ist, sowie zwei Seitenteile (10), in denen einerseits die Öffnungen zur Lagerung des Lagerstabes (7) vorgesehen sind, und die andererseits obere Anschläge aufweisen, die am oberen Teil (1) des Lehnenschildes anlegbar sind. 4. Backrest according to claim 1, characterized in that the bearing piece (9) has a downwardly open pocket into which the upper end of the backrest bar (8) is inserted, and two side parts (10), in which on the one hand the openings for storage of the bearing rod (7) are provided, and on the other hand have upper stops which can be placed on the upper part (1) of the backrest shield. 5. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindung des Lehnenstabes (8) mit dem Lagerstück (9) mittels eines Bügels (13) gesichert ist, der einerseits im Lehnenstab (8) eingehakt ist, und andererseits mittels eines öffenbaren Bügelhalters (14) am oberen Teil (1) des Lehnenschildes befestigt ist. 5. Backrest according to claim 1, characterized in that the connection of the backrest bar (8) to the bearing piece (9) is secured by means of a bracket (13) which is hooked on the one hand in the backrest bar (8), and on the other hand by means of an openable bracket holder ( 14) is attached to the upper part (1) of the backrest shield. 6. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß das Lagerstück (9) beidseits des Lehnenstabes (8) nach unten verlaufende Wangen aufweist, an welchen schwenkbar ein Fixierblock (16) aufgehängt ist, der den Lehnenstab (8) umgreift, und einerseits eine Nase zum Eingreifen in die Bohrungen (19) der Höhenverstellung aufweist, und andererseits als Anschlag am unteren Teil (2) des Lehnenschildes dient. 6. Backrest according to claim 1, characterized in that the bearing piece (9) on both sides of the backrest bar (8) has downwardly extending cheeks on which a fixing block (16) is pivotally suspended, which engages around the backrest bar (8), and on the one hand Has nose for engaging in the holes (19) of the height adjustment, and on the other hand serves as a stop on the lower part (2) of the backrest shield. 7. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß die Teile (1,2) des Lehnenschildes, die Lagerteile (4,5) und das Lagerstück (9) Spritzgußteile sind, und aus Polypropylen oder aus Polystyrol bestehen, und die Lagerschalen (11,12) einstückig an die zugehörigen Teile (1,2) des Lehnenschildes angeformt sind. 7. Backrest according to claim 1, characterized in that the parts (1,2) of the backrest shield, the bearing parts (4,5) and the bearing piece (9) are injection molded parts, and consist of polypropylene or polystyrene, and the bearing shells (11 , 12) are integrally formed on the associated parts (1, 2) of the backrest shield. 7. Rückenlehne nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerrollen (6) aus Gummi bestehen. 7. Backrest according to claim 1, characterized in that the bearing rollers (6) consist of rubber.
EP97108086A 1996-07-01 1997-05-17 A movable backrest Expired - Lifetime EP0815779B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19626394A DE19626394A1 (en) 1996-07-01 1996-07-01 Movable backrest
DE19626394 1996-07-01

Publications (3)

Publication Number Publication Date
EP0815779A2 true EP0815779A2 (en) 1998-01-07
EP0815779A3 EP0815779A3 (en) 2000-01-19
EP0815779B1 EP0815779B1 (en) 2002-12-04

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ID=7798581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108086A Expired - Lifetime EP0815779B1 (en) 1996-07-01 1997-05-17 A movable backrest

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EP (1) EP0815779B1 (en)
AT (1) ATE228793T1 (en)
DE (3) DE29622882U1 (en)
ES (1) ES2187696T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397755A (en) * 2002-12-23 2004-08-04 Ri Shun Liao Height and horizontal position adjustment mechanism for chair backrest
US7416251B2 (en) 2005-06-10 2008-08-26 Global Total Office Chair
EP2130455A1 (en) * 2008-06-06 2009-12-09 Pro-Cord S.P.A. Chair with tiltable backrest

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443226A1 (en) * 1978-12-04 1980-07-04 Center Design Res & Dev CHAIR
DE3025916A1 (en) * 1980-07-09 1982-01-28 Röder GmbH Sitzmöbelwerke, 6000 Frankfurt Seat backrest esp. for swivel office chairs - comprises two adjustable parts for better adaption to user's back
EP0107627A1 (en) * 1982-10-22 1984-05-02 Castelli S.P.A. Chair having a back comprising a plurality of articulated segments
EP0308538A1 (en) * 1987-09-25 1989-03-29 Christof Stoll GmbH & Co KG Back support for a chair
EP0556578A1 (en) * 1992-01-21 1993-08-25 Bio-Support Industries, Ltd. Demountable Backrest

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443226A1 (en) * 1978-12-04 1980-07-04 Center Design Res & Dev CHAIR
DE3025916A1 (en) * 1980-07-09 1982-01-28 Röder GmbH Sitzmöbelwerke, 6000 Frankfurt Seat backrest esp. for swivel office chairs - comprises two adjustable parts for better adaption to user's back
EP0107627A1 (en) * 1982-10-22 1984-05-02 Castelli S.P.A. Chair having a back comprising a plurality of articulated segments
EP0308538A1 (en) * 1987-09-25 1989-03-29 Christof Stoll GmbH & Co KG Back support for a chair
EP0556578A1 (en) * 1992-01-21 1993-08-25 Bio-Support Industries, Ltd. Demountable Backrest

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397755A (en) * 2002-12-23 2004-08-04 Ri Shun Liao Height and horizontal position adjustment mechanism for chair backrest
US7416251B2 (en) 2005-06-10 2008-08-26 Global Total Office Chair
EP2130455A1 (en) * 2008-06-06 2009-12-09 Pro-Cord S.P.A. Chair with tiltable backrest
US7681952B2 (en) 2008-06-06 2010-03-23 Pro-Cord S.P.A. Chair with tiltable backrest

Also Published As

Publication number Publication date
DE29622882U1 (en) 1997-07-10
ES2187696T3 (en) 2003-06-16
DE59708864D1 (en) 2003-01-16
EP0815779B1 (en) 2002-12-04
EP0815779A3 (en) 2000-01-19
ATE228793T1 (en) 2002-12-15
DE19626394A1 (en) 1998-01-08

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