EP0247311A2 - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- EP0247311A2 EP0247311A2 EP87104184A EP87104184A EP0247311A2 EP 0247311 A2 EP0247311 A2 EP 0247311A2 EP 87104184 A EP87104184 A EP 87104184A EP 87104184 A EP87104184 A EP 87104184A EP 0247311 A2 EP0247311 A2 EP 0247311A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- seat
- link
- seat support
- chair
- 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
Links
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000037396 body weight Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
- A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
Definitions
- the invention relates to a chair with a seat support on which a seat plate is supported by means of a rear handlebar, and also with a backrest support which is pivotably articulated on the seat support.
- Such chairs are known in various designs, including from DE-PS 28 22 574.
- the invention has for its object to provide a chair of the type mentioned in such a way that an adjustment of the adjusting force for the backrest is not necessary and thus the restoring force for the backrest increases with increasing user weight.
- the seat plate is connected to the seat support via a front link and the seat support is connected via a front and a rear parallelogram link to a fixed inclination support which is fixed to the lower part of the chair, the parallelogram link also being articulated by means of a parallel guide link are connected and a first energy store between the seat support and incline support and a second energy store between the backrest support and seat support are effective.
- both energy stores are preloaded to a greater or lesser extent depending on the user weight.
- the result of this is that the movement of the backrest runs more or less smoothly with the synchronized movement of the seat coupled therewith.
- the chair is shown in the extreme inclination positions of the backrest, specifically drawn in the front end position and dashed lines in the rear end position. Leaning against the backrest causes the seat 11 to move in synchronism with the backrest movement. The size of the restoring forces for this movement is automatically adjusted by the adjusting mechanism described in more detail below in accordance with the body weight of the user.
- parallelogram links 3 are articulated, the ends of which are connected via a parallel guide link 4.
- the parallelogram link 3 are also articulated on a seat support 7.
- the parallelogram link 3 and the parallel guide link 4 articulated together.
- a second energy accumulator 15 is also designed as a tension spring and is articulated on the one hand at the articulation point 3a and on the other hand at the articulation point 12a.
- the articulation point 12a is the articulation point of the rear link 12 on the seat 11.
- the rear link 12 is articulated on the seat support 7 with its other end.
- the seat 11 is also attached to the seat support 7 via the handlebar 10.
- the backrest support 14a the front, angled region 14 of which is connected to a link 13 is articulated on the seat support 7 so as to be pivotable about the articulation point 14b.
- the link 13 is in turn articulated approximately in the middle of the rear link 12.
- the embodiment according to FIGS. 6 and 7 differs from the embodiment according to FIGS. 2 to 5 only in the different design and arrangement of the energy accumulator 15 ⁇ .
- the energy accumulator 15 ⁇ is articulated on the one hand at the articulation point 14c and on the other hand at the articulation point 7a of the seat support 7.
- the mode of operation of the adjusting mechanism can be seen from a comparison of FIG. 2 with FIG. 3.
- the parallelogram links 3 move to the right against the force of the tension spring 5. This reduces the distance between the parallel guide link 4 and the inclination bracket 1 from the value A (FIG. 2) to the value C.
- the seat bracket 7 is also moved more or less far forward by the pivoting movement of the parallelogram link 3 according to the weight of the user (dimension D).
- the mechanism described so far is not only used for seat suspension depending on the weight of the user, but also to accomplish the weight-dependent adjustment and synchronous movement of the tilt mechanism:
- the energy accumulator 5 is preloaded to a greater or lesser extent in accordance with the user weight.
- the energy accumulator 15 is also biased more or less strongly by the parallel displacement in accordance with the user weight, with the result that the movement of the backrest with the synchronized movement of the seat coupled therewith runs more or less smoothly.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Ein Stuhl mit einem Sitzträger (7) weist eine Sitzplatte (11) auf, welche mittels eines hinteren und eines vorderen Lenkers an dem Sitzträger (7) abgestützt ist. Ferner besitzt der Stuhl einen am Sitzträger (7) schwenkbar angelenkten Rückenlehnenträger (14a). Der Sitzträger (7) ist über einen vorderen und einen hinteren Parallelogrammlenker (3) mit einem ortsfesten Neigungsträger (1) verbunden, der am Stuhlunterteil (2) fest ist. Dabei sind die Parallelogrammlenker (3) zusätzlich mittels eines Parallelführungslenkers (4) gelenkig miteinander verbunden. Ein erster Kraftspeicher (5) ist zwischen Sitzträger (7) und Neigungsträger (1) wirksam, während ein zweiter Kraftspeicher (15) zwischen Rückenlehnenträger (14a) und Sitzträger (7) wirksam ist. Bei einem solchen Stuhl ist die für die Neigung der Rückenlehne erforderliche Kraft abhängig vom Gewicht des Benutzers. Ein Benutzer mit einem höheren Gewicht wicht muß eine höhere Kraft aufwenden für die Neigung der Rückenlehne nach hinten als ein Benutzer mit einem niedrigeren Gewicht. A chair with a seat support (7) has a seat plate (11) which is supported on the seat support (7) by means of a rear and a front link. The chair also has a backrest support (14a) which is pivotably articulated on the seat support (7). The seat support (7) is connected via a front and a rear parallelogram link (3) to a fixed inclination support (1) which is fixed to the lower part of the chair (2). The parallelogram links (3) are additionally articulated to one another by means of a parallel guide link (4). A first energy store (5) is effective between the seat support (7) and the inclination support (1), while a second energy store (15) is effective between the backrest support (14a) and the seat support (7). In such a chair, the force required to tilt the backrest depends on the weight of the user. A user with a higher weight must exert a higher force to tilt the backrest than a user with a lower weight.
Description
Die Erfindung betrifft einen Stuhl mit Sitzträger, an welchem eine Sitzplatte mittels eines hinteren Lenkers abgestützt ist, ferner mit einem Rückenlehnenträger, der am Sitzträger schwenkbar angelenkt ist.The invention relates to a chair with a seat support on which a seat plate is supported by means of a rear handlebar, and also with a backrest support which is pivotably articulated on the seat support.
Derartige Stühle sind in verschiedenen Ausführungen bekannt, unter anderem aus DE-PS 28 22 574.Such chairs are known in various designs, including from DE-PS 28 22 574.
Bei allen derartigen bekannten Stühlen muß die Verstellkraft für die Rückenlehnenneigung vom Benutzer eingestellt werden. Es handelt sich um einen zusätzlichen Verstellvorgang, neben anderen vom Benutzer ohnehin vorzunehmenden Verstellvorgängen, wie Höhenverstellung. In der Praxis führen die vielen Verstellmöglichkeiten dazu, daß sie häufig entweder nicht wahrgenommen werden oder daß sogar Fehleinstellungen vorgenommen werden.In all such known chairs, the adjustment force for the backrest inclination must be set by the user. It is an additional adjustment process, in addition to other adjustment processes to be carried out by the user anyway, such as height adjustment. In practice, the many adjustment options mean that they are often either not noticed or that incorrect settings are even made.
Ausgehend von dem bekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen Stuhl der eingangs erwähnten Art so auszubilden, daß eine Einstellung der Verstellkraft für die Rückenlehne nicht erforderlich ist und damit mit zunehmendem Benutzergewicht die Rückstellkraft für die Rückenlehne zunimmt.Based on the known prior art, the invention has for its object to provide a chair of the type mentioned in such a way that an adjustment of the adjusting force for the backrest is not necessary and thus the restoring force for the backrest increases with increasing user weight.
Die Lösung dieser Aufgabe erfolgt dadurch, daß die Sitzplatte über einen vorderen Lenker mit dem Sitzträger verbunden ist und der Sitzträger über einen vorderen und einen hinteren Parallelogrammlenker mit einem ortsfesten Neigungsträger verbunden ist, der am Stuhlunterteil fest ist, wobei die Parallelogrammlenker zusätzlich mittels eines Parallelführungslenkers gelenkig verbunden sind und ein erster Kraftspeicher zwischen Sitzträger und Neigungsträger sowie ein zweiter Kraftspeicher zwischen Rückenlehnenträger und Sitzträger wirksam sind.This object is achieved in that the seat plate is connected to the seat support via a front link and the seat support is connected via a front and a rear parallelogram link to a fixed inclination support which is fixed to the lower part of the chair, the parallelogram link also being articulated by means of a parallel guide link are connected and a first energy store between the seat support and incline support and a second energy store between the backrest support and seat support are effective.
Bei einem derartigen Stuhl werden beide Kraftspeicher entsprechend dem Benutzergewicht mehr oder weniger stark vorgespannt. Dies hat zur Folge, daß die Bewegung der Rückenlehne mit der damit gekoppelten Synchronbewegung des Sitzes mehr oder weniger leicht gängig abläuft.In such a chair, both energy stores are preloaded to a greater or lesser extent depending on the user weight. The result of this is that the movement of the backrest runs more or less smoothly with the synchronized movement of the seat coupled therewith.
Bevorzugte Ausführungsformen der Erfindung sind in den Unteransprüchen beschrieben.Preferred embodiments of the invention are described in the subclaims.
Nachstehend werden bevorzugte Ausführungsformen der Erfindung anhnad der Zeichnung im einzelnen erläutert. Es zeigen:
- Figur 1 - eine schematische Seitenansicht eines Stuhls,
- Figur 2 - eine schematische Seitenansicht des Sitzbereichs in einer ersten Position ohne Belastung durch einen Benutzer,
- Figur 3 - eine nur einen Teilbereich von
Figur 2 dar stellende Seitenansicht bei Belastung durch einen Benutzer, - Figur 4 - eine Seitenansicht des Stuhls bei nach vorne verschwenkter Rückenlehne,
- Figur 5 - die Seitenansicht gemäß
Figur 4 bei nach hinten verschwenkter Rückenlehne, - Figur 6 - eine zu
Figur 5 analoge Seitenansicht einer zweiten Ausführungsform, - Figur 7 - eine Ansicht von unten auf die Darstellung gemäß
Figur 6.
- Figure 1 - a schematic side view of a chair,
- FIG. 2 shows a schematic side view of the seating area in a first position without stress from a user,
- Figure 3 - is only a portion of Figure 2 side view when loaded by a user,
- FIG. 4 - a side view of the chair with the backrest pivoted forward,
- FIG. 5 - the side view according to FIG. 4 with the backrest pivoted backwards,
- FIG. 6 shows a side view of a second embodiment analogous to FIG. 5,
- Figure 7 - a bottom view of the illustration of Figure 6.
In Figur 1 ist der Stuhl in den extremen Neigungspositionen der Rückenlehne dargestellt, und zwar durchgehend gezeichnet in der vorderen Endstellung und gestrichelt in der hinteren Endstellung. Durch das Anlehnen an die Rückenlehne wird bewirkt, daß sich der Sitz 11 synchron zur Rückenlehnenbewegung mitbewegt. Die Größe der Rückstellkräfte für diese Bewegung wird durch den nachstehend näher beschriebenen Einstellmechanismus entsprechend dem Körpergewicht des Benutzers automatisch eingestellt.In Figure 1, the chair is shown in the extreme inclination positions of the backrest, specifically drawn in the front end position and dashed lines in the rear end position. Leaning against the backrest causes the
An einem Neigungsträger 1, der mit dem Stuhlunterteil 2 verbunden ist, sind Parallelogrammlenker 3 angelenkt, deren Enden über einen Parallelführungslenker 4 verbunden sind. Die Parallelogrammlenker 3 sind außerdem an einem Sitzträger 7 angelenkt. Ein erster Kraftspeicher 5, der in allen Ausführungsbeispielen als Zugfeder ausgebildet ist, ist einerseits am Sitzträger 7 und andererseits am Anlenkpunkt 6 befestigt. Am Anlenkpunkt 6 laufen der Parallelogrammlenker 3 und der Parallelführungslenker 4 gelenkig zusammen.On an inclination bracket 1, which is connected to the
Ein zweiter Kraftspeicher 15 ist bei den Ausführungsformen gemäß Figuren 2 bis 5 ebenfalls als Zugfeder ausgebildet und einerseits am Gelenkpunkt 3a sowie andererseits am Gelenkpunkt 12a angelenkt. Der Gelenkpunkt 12a ist der Anlenkpunkt des hinteren Lenkers 12 am Sitz 11. Der hintere Lenker 12 ist mit seinem anderen Ende am Sitzträger 7 angelenkt.In the embodiments according to FIGS. 2 to 5, a
Der Sitz 11 ist ferner über den Lenker 10 am Sitzträger 7 befestigt.The
Weiterhin ist am Sitzträger 7 um den Gelenkpunkt 14b verschwenkbar der Rückenlehnenträger 14a angelenkt, dessen vorderer, abgewinkelter Bereich 14 mit einem Lenker 13 verbunden ist. Der Lenker 13 ist seinerseits etwa in der Mitte des hinteren Lenkers 12 angelenkt.Furthermore, the backrest support 14a, the front,
Die Ausführungsform gemäß Figuren 6 und 7 unterscheidet sich von der Ausführungsform gemäß Figuren 2 bis 5 lediglich durch die unterschiedliche Ausbildung und Anordnung des Kraftspeichers 15ʹ. Der Kraftspeicher 15ʹ ist bei der zweiten Ausführungsform einerseits am Gelenkpunkt 14c und andererseits am Gelenkpunkt 7a des Sitzträgers 7 angelenkt.The embodiment according to FIGS. 6 and 7 differs from the embodiment according to FIGS. 2 to 5 only in the different design and arrangement of the energy accumulator 15ʹ. In the second embodiment, the energy accumulator 15ʹ is articulated on the one hand at the
Aus einem Vergleich von Figur 2 mit Figur 3 ist die Wirkungsweise des Einstellmechanismus sichtbar. Bei Be lastung gemäß Pfeil B (vgl. Figur 3) wandern die Parallelogrammlenker 3 gegen die Kraft der Zugfeder 5 nach rechts. Hierdurch verringert sich der Abstand zwischen dem Parallelführungslenker 4 und dem Neigungsträger 1 vom Wert A (Figur 2) auf den Wert C. Auch wird der Sitzträger 7 durch die Schwenkbewegung der Parallelogrammlenker 3 entsprechend dem Gewicht des Benutzers mehr oder weniger weit nach vorn bewegt (Maß D).The mode of operation of the adjusting mechanism can be seen from a comparison of FIG. 2 with FIG. 3. At Be load according to arrow B (cf. FIG. 3), the parallelogram links 3 move to the right against the force of the
Der bisher beschriebene Mechanismus dient nicht nur zur Sitzfederung in Abhängigkeit von dem Gewicht des Benutzers sondern auch dazu, die gewichtsabhängige Einstellung und Synchronbewegung des Neigungsmechanismus zu bewerkstelligen:The mechanism described so far is not only used for seat suspension depending on the weight of the user, but also to accomplish the weight-dependent adjustment and synchronous movement of the tilt mechanism:
Wird der Stuhl benutzt, so wird der Kraftspeicher 5 entsprechend dem Benutzergewicht mehr oder weniger stark vorgespannt. Gleichzeitig wird der Kraftspeicher 15 durch die Parallelverschiebung entsprechend dem Benutzergewicht ebenfalls mehr oder weniger stark vorgespannt mit der Folge, daß die Bewegung der Rückenlehne mit der damit gekoppelten Synchronbewegung des Sitzes mehr oder weniger leicht gängig abläuft.If the chair is used, the
Der am Sitzträger 7 im Punkt 14b gelagerte Rückenlehnenträger 14a verschwenkt den Lenkhebel 13 über den Bereich 14. Der Lenker 13 verschwenkt über den Lenker 12 den Sitz 11 derart, daß in Verbindung mit dem vorderen Lenker 10 der Sitz aus der Normalstellung heraus hinten stärker als vorn abgesenkt wird und dabei der Rückenlehne folgend eine Bewegung nach hinten ausführt.The
Bei Entlastung des Stuhls werden die Ausgangspositionen wieder eingenommen. When the chair is relieved, the starting positions are taken up again.
Claims (8)
dadurch gekennzeichnet,
daß die Sitzplatte (11) zusätzlich über einen vorderen Lenker (10) mit dem Sitzträger (7) verbunden ist und der Sitzträger (7) über einen vorderen und einen hinteren Parallelogrammlenker (3) mit einem ortsfesten Neigungsträger (1) verbunden ist, der am Stuhlunterteil (2) fest ist, wobei die Parallelogrammlenker (3) zusätzlich mittels eines Parallelführungslenkers (4) gelenkig miteinander verbunden sind und ein erster Kraftspeicher (5) zwischen Sitzträger (7) und Neigungsträger (1) sowie ein zweiter Kraftspeicher (15) zwischen Rückenlehnenträger (14a) und Sitzträger (7) wirksam sind.1. chair with seat support, on which a seat plate is supported by means of a rear link, furthermore with a backrest support, which is pivotably articulated on the seat support,
characterized,
that the seat plate (11) is additionally connected via a front link (10) to the seat support (7) and the seat support (7) via a front and a rear parallelogram link (3) is connected to a fixed inclination support (1) which on Lower part of the chair (2) is fixed, the parallelogram link (3) being additionally articulated by means of a parallel guide link (4) and a first energy store (5) between the seat support (7) and the incline support (1) and a second energy store (15) between the backrest support (14a) and seat support (7) are effective.
dadurch gekennzeichnet,
daß der erste Kraftspeicher (5) einerseits am Sitzträger (7) und andererseits an einem Gelenkpunkt (6) von Parallelführungslenker und Parallelogrammlenker (3) angelenkt ist.2. Chair according to claim 1,
characterized,
that the first energy accumulator (5) is articulated on the one hand on the seat support (7) and on the other hand at an articulation point (6) of the parallel guide link and parallelogram link (3).
dadurch gekennzeichnet,
daß der zweite Kraftspeicher (15) einerseits am Anlenkpunkt (12a) des Lenkers (12) am Sitz (11), andererseits an einem Gelenkpunkt (3a) von Parallelführungslenker (4) und Parallelogrammlenker (3) angelenkt ist.3. Chair according to claim 1 or 2,
characterized,
that the second energy accumulator (15) is articulated on the one hand at the articulation point (12a) of the link (12) on the seat (11), and on the other hand at an articulation point (3a) of the parallel guide link (4) and parallelogram link (3).
dadurch gekennzeichnet,
daß der zweite Kraftspeicher (15ʹ) einerseits am Sitzträger (7) und andererseits am Rückenlehnenträger (14a) angelenkt ist.4. Chair according to one or more of claims 1 to 3,
characterized,
that the second energy accumulator (15ʹ) is articulated on the one hand on the seat support (7) and on the other hand on the backrest support (14a).
dadurch gekennzeichnet,
daß der Rückenlehnenträger (14a) einen über seinen Anlenkpunkt (14b) am Sitzträger (7) fortgesetzten Bereich (14) aufweist, dessen freies Ende mit einem Lenker (13) verbunden ist, der seinerseits an dem hinteren, den Sitzträger (7) mit dem Sitz (11) verbindenen Lenker (12) angelenkt ist.5. Chair according to one or more of claims 1 to 4,
characterized,
that the backrest support (14a) has a via its articulation point (14b) on the seat support (7) continued area (14), the free end of which is connected to a handlebar (13), which in turn on the rear, the seat support (7) with the Seat (11) connecting link (12) is articulated.
dadurch gekennzeichnet,
daß die Parallelogrammlenker (3) dreiecksförmig ausgebildet sind und jeweils ein Gelenkpunkt in einer Ecke angeordnet ist.6. Chair according to one or more of claims 1 to 5,
characterized,
that the parallelogram links (3) are triangular and one articulation point is arranged in a corner.
dadurch gekennzeichnet,
daß die Kraftspeicher (5; 15) Federn sind.7. Chair according to one or more of claims 1 to 6,
characterized,
that the energy accumulator (5; 15) are springs.
dadurch gekennzeichnet,
daß zumindest ein Kraftspeicher (15ʹ) eine Gasfeder ist.8. Chair according to one or more of claims 1 to 6,
characterized,
that at least one energy accumulator (15ʹ) is a gas spring.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8614185U DE8614185U1 (en) | 1986-05-26 | 1986-05-26 | chair |
DE19863617624 DE3617624A1 (en) | 1986-05-26 | 1986-05-26 | CHAIR |
DE3617624 | 1986-05-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0247311A2 true EP0247311A2 (en) | 1987-12-02 |
EP0247311A3 EP0247311A3 (en) | 1988-04-06 |
EP0247311B1 EP0247311B1 (en) | 1991-03-13 |
Family
ID=42108201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87104184A Expired - Lifetime EP0247311B1 (en) | 1986-05-26 | 1987-03-21 | Chair |
Country Status (8)
Country | Link |
---|---|
US (1) | US4761033A (en) |
EP (1) | EP0247311B1 (en) |
JP (1) | JPS6365817A (en) |
AU (1) | AU581367B2 (en) |
CA (1) | CA1278992C (en) |
DE (3) | DE3617624A1 (en) |
DK (1) | DK166401B1 (en) |
NO (1) | NO166518C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0434897A1 (en) * | 1989-11-30 | 1991-07-03 | Itoki Crebio Corporation | Tilting control assembly for chair |
EP0435297A1 (en) * | 1989-12-27 | 1991-07-03 | Itoki Crebio Corporation | Tilting control assembly for chair |
EP0591932A1 (en) * | 1992-10-06 | 1994-04-13 | COMFORTO GmbH | Chair, in particular an office chair |
US6139103A (en) * | 1997-03-12 | 2000-10-31 | Leggett & Platt, Inc. | Synchronized chair seat and backrest tilt control mechanism |
NL1018178C2 (en) * | 2001-05-30 | 2002-12-03 | Gio Holding B V | Seating furniture. |
US6709057B2 (en) | 2001-05-11 | 2004-03-23 | Armin Sander | Chair, in particular office chair |
WO2008067947A1 (en) * | 2006-12-04 | 2008-06-12 | Sato Office Gmbh | Seat having a seat panel and a backrest |
US8931841B2 (en) | 2011-08-25 | 2015-01-13 | Johannes Uhlenbrock | Synchronous mechanism for a chair |
Families Citing this family (81)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH672237A5 (en) * | 1986-10-14 | 1989-11-15 | Giroflex Entwicklungs Ag | Relaxing chair |
DE3700447A1 (en) * | 1987-01-09 | 1988-07-21 | Vogt Bueromoebel | SEAT FURNITURE |
EP0281845A1 (en) * | 1987-02-25 | 1988-09-14 | Köhl Gmbh | Swivel chair or seat with synchronized inclination of backrest and seat |
DE3781282T2 (en) * | 1987-10-24 | 1992-12-17 | Kokuyo Kk | LOUNGE CHAIR. |
DE3900220A1 (en) * | 1989-01-05 | 1990-07-12 | Wilkhahn Wilkening & Hahne | CHAIR |
US4943114A (en) * | 1989-02-06 | 1990-07-24 | Giancarlo Piretti | Chair backrest linkage mechanism |
DE4019876A1 (en) * | 1990-06-22 | 1992-01-02 | Simon Desanta | CHAIR, ESPECIALLY OFFICE CHAIR |
US5318345A (en) * | 1991-06-07 | 1994-06-07 | Hon Industries, Inc. | Tilt back chair and control |
WO1993003653A1 (en) * | 1991-08-22 | 1993-03-04 | Peter James Riddle | Weight compensating chair backrest |
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- 1987-03-21 EP EP87104184A patent/EP0247311B1/en not_active Expired - Lifetime
- 1987-03-21 DE DE8787104184T patent/DE3768556D1/en not_active Expired - Fee Related
- 1987-04-23 NO NO871685A patent/NO166518C/en unknown
- 1987-05-20 US US07/052,436 patent/US4761033A/en not_active Expired - Fee Related
- 1987-05-21 JP JP62122704A patent/JPS6365817A/en active Pending
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0434897A1 (en) * | 1989-11-30 | 1991-07-03 | Itoki Crebio Corporation | Tilting control assembly for chair |
US5080318A (en) * | 1989-11-30 | 1992-01-14 | Itoki Kosakusho Co., Ltd. | Tilting control assembly for chair |
EP0435297A1 (en) * | 1989-12-27 | 1991-07-03 | Itoki Crebio Corporation | Tilting control assembly for chair |
EP0591932A1 (en) * | 1992-10-06 | 1994-04-13 | COMFORTO GmbH | Chair, in particular an office chair |
US6139103A (en) * | 1997-03-12 | 2000-10-31 | Leggett & Platt, Inc. | Synchronized chair seat and backrest tilt control mechanism |
US6709057B2 (en) | 2001-05-11 | 2004-03-23 | Armin Sander | Chair, in particular office chair |
NL1018178C2 (en) * | 2001-05-30 | 2002-12-03 | Gio Holding B V | Seating furniture. |
WO2002096240A1 (en) * | 2001-05-30 | 2002-12-05 | Gio Holding B.V. | Seating unit for supporting a body or part of a body |
WO2008067947A1 (en) * | 2006-12-04 | 2008-06-12 | Sato Office Gmbh | Seat having a seat panel and a backrest |
CN101573060B (en) * | 2006-12-04 | 2011-09-28 | Sato办公用品有限公司 | Seat having a seat panel and a backrest |
US8215710B2 (en) | 2006-12-04 | 2012-07-10 | Sato Office Gmbh | Seat having a seat panel and a backrest |
US8931841B2 (en) | 2011-08-25 | 2015-01-13 | Johannes Uhlenbrock | Synchronous mechanism for a chair |
Also Published As
Publication number | Publication date |
---|---|
NO166518C (en) | 1991-08-07 |
AU581367B2 (en) | 1989-02-16 |
EP0247311B1 (en) | 1991-03-13 |
DE3768556D1 (en) | 1991-04-18 |
EP0247311A3 (en) | 1988-04-06 |
JPS6365817A (en) | 1988-03-24 |
DE3617624A1 (en) | 1987-12-03 |
DE8614185U1 (en) | 1986-07-17 |
NO871685L (en) | 1987-11-27 |
NO871685D0 (en) | 1987-04-23 |
NO166518B (en) | 1991-04-29 |
AU7335587A (en) | 1987-12-03 |
DK265487D0 (en) | 1987-05-25 |
DK265487A (en) | 1987-11-27 |
US4761033A (en) | 1988-08-02 |
CA1278992C (en) | 1991-01-15 |
DK166401B1 (en) | 1993-05-17 |
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