EP0591932A1 - Chaise, notamment chaise de travail - Google Patents
Chaise, notamment chaise de travail Download PDFInfo
- Publication number
- EP0591932A1 EP0591932A1 EP93116099A EP93116099A EP0591932A1 EP 0591932 A1 EP0591932 A1 EP 0591932A1 EP 93116099 A EP93116099 A EP 93116099A EP 93116099 A EP93116099 A EP 93116099A EP 0591932 A1 EP0591932 A1 EP 0591932A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- support
- chair
- seat part
- back support
- 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
Images
Classifications
-
- 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
-
- 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
Definitions
- the invention relates to a chair, in particular an office or work chair, as specified in the preamble of claim 1.
- a chair is known from DE 40 41 157 A1.
- the backrest is always inclined backwards with a downward movement of the rear area of the seat support is coupled, in a chair of the type mentioned the entire seat part is raised when the backrest is tilted backwards.
- This has the advantage that the restoring force for returning the backrest into the upright position is applied directly by the weight of the person sitting on the seat part. It is therefore not necessary to use this restoring force through energy stores such as gas springs or the like. which must be adjusted to the weight of a user.
- a disadvantage of the known chair is that the lifting of the seat part when the backrest is tilted backwards is unusual and even uncomfortable for the user, in particular because it is associated with a shift in the seat pressure towards the front edge of the seat, to the extreme case that the contact of the feet with the floor is lost due to the upward movement of the front part of the seat.
- the invention has for its object to design a chair of the type mentioned with structurally simple means so that the desired upward movement of the seat part for generating the counterforce to the backward inclination of the backrest is such that it is ergonomically advantageous and is not perceived by the user as uncomfortable .
- the trajectory of the four-bar transmission guiding the seat part which can be influenced by the choice of the lengths and joint distances of the handlebars, is designed in accordance with the invention in such a way that there is a combined pivoting and translational movement of the seat part which corresponds to a pivoting about an imaginary axis which is in front of the front edge of the seat part and so that it runs in the area of the knee joint axis of a seated person. This ensures that the contact between feet and floor remains almost constant over the entire range of motion and the above-mentioned disadvantageous shifting of the seat pressure into the back of the knee does not take place.
- the chair shown has a base frame 6, to which a seat support 1 is preferably attached in a rotatable and height-adjustable manner.
- a seat support 1 On the seat support 1, the approximately horizontally extending arm of the backrest support 4 is mounted in a horizontal-axis swivel joint D, which carries the backrest 8 with its other, upward-pointing arm.
- a section of the back support 4 which is extended forwardly via the swivel joint D is articulated in a connecting joint C to the seat part 3, which carries a seat plate with cushion 7.
- the seat part 3 in the joint B is connected to a double joint lever 2 which is articulated in the joint A on the seat support 1.
- An arm 9 of the back support 4 projecting downward from the swivel joint D is supported against the seat support 1 by an energy accumulator 9.
- the section 10 of the back support 4 lying between the swivel joint D and the connecting joint C forms a rear linker, and the double articulated lever 2 forms a front link of a four-link mechanism leading the seat part 3 with the articulation points A, B, C and D.
- the link 10 is from the swivel joint D. from almost horizontally directed towards the front, while the front link 2 also runs forward from the seat support-side joint A and inclines upward at an acute angle.
- the seat support 3 and thus the seat plate 7 is moved upwards when the backrest 8 is tilted back into the dashed position, with a combined translational and rotary movement which corresponds to a pivoting about an imaginary horizontal pivot axis K, which at a distance in front of and slightly above the front edge of the seat plate 7, approximately where the knee joint axis of a person of normal size sitting on the seat plate 7 would be.
- the up and down movement of the seat plate 7 associated with the change in inclination of the backrest 8 thus leaves the position of the knees of the user, and thus the contact of the feet with the floor is essentially unaffected.
- the restoring moment counteracting the backward inclination of the backrest 8 is, as mentioned at the outset, applied by the weight of the person sitting on the seat plate 7.
- the energy accumulator 5 does not need to apply this restoring moment, but only serves to hold the chair in a defined position in the unoccupied state.
- conventional locking means acting on the energy accumulator or other parts of the synchronous mechanism can also be provided in order to also rigidly lock the chair in a desired position.
- the drawing shows only the parts that are essential for the kinematics in the drawing plane. It goes without saying that the joints, links, etc. shown are designed or arranged twice so that the seat part and back support are adequately supported over the width of the chair.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4233628A DE4233628A1 (de) | 1992-10-06 | 1992-10-06 | Stuhl, insbesondere Büro- oder Arbeitsstuhl |
DE4233628 | 1992-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0591932A1 true EP0591932A1 (fr) | 1994-04-13 |
EP0591932B1 EP0591932B1 (fr) | 1995-12-20 |
Family
ID=6469786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93116099A Expired - Lifetime EP0591932B1 (fr) | 1992-10-06 | 1993-10-05 | Chaise, notamment chaise de travail |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0591932B1 (fr) |
AT (1) | ATE131701T1 (fr) |
DE (2) | DE4233628A1 (fr) |
ES (1) | ES2052470T3 (fr) |
GR (1) | GR940300043T1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6802566B2 (en) | 2000-09-28 | 2004-10-12 | Formway Furniture Limited | Arm assembly for a chair |
WO2009134451A1 (fr) * | 2008-05-02 | 2009-11-05 | Haworth, Inc. | Mécanisme de tension pour une chaise sensible au poids |
WO2015196850A1 (fr) * | 2014-06-26 | 2015-12-30 | 陈国巨 | Chaise avec coussin de siège se déplaçant vers l'avant et vers le bas simultanément pendant l'inclinaison vers l'arrière du dossier de chaise |
WO2017135831A1 (fr) * | 2016-02-05 | 2017-08-10 | Formway Furniture Limited | Chaise et éléments |
US10575648B2 (en) | 2015-04-13 | 2020-03-03 | Steelcase Inc. | Seating arrangement |
US11096497B2 (en) | 2015-04-13 | 2021-08-24 | Steelcase Inc. | Seating arrangement |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPR054400A0 (en) | 2000-09-29 | 2000-10-26 | Formway Furniture Limited | A castor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0247311A2 (fr) * | 1986-05-26 | 1987-12-02 | Drabert Söhne GmbH & Co. | Chaise |
US4834454A (en) * | 1987-05-15 | 1989-05-30 | Faultless-Doerner Manufacturing Inc. | Office chair with tiltable seat and back |
WO1992020262A1 (fr) * | 1991-05-24 | 1992-11-26 | Equus Marketing Ag | Siege de travail, notamment siege de bureau |
-
1992
- 1992-10-06 DE DE4233628A patent/DE4233628A1/de not_active Withdrawn
-
1993
- 1993-10-05 DE DE59301201T patent/DE59301201D1/de not_active Expired - Fee Related
- 1993-10-05 ES ES93116099T patent/ES2052470T3/es not_active Expired - Lifetime
- 1993-10-05 AT AT93116099T patent/ATE131701T1/de not_active IP Right Cessation
- 1993-10-05 EP EP93116099A patent/EP0591932B1/fr not_active Expired - Lifetime
-
1994
- 1994-07-29 GR GR940300043T patent/GR940300043T1/el unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0247311A2 (fr) * | 1986-05-26 | 1987-12-02 | Drabert Söhne GmbH & Co. | Chaise |
US4834454A (en) * | 1987-05-15 | 1989-05-30 | Faultless-Doerner Manufacturing Inc. | Office chair with tiltable seat and back |
WO1992020262A1 (fr) * | 1991-05-24 | 1992-11-26 | Equus Marketing Ag | Siege de travail, notamment siege de bureau |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6802566B2 (en) | 2000-09-28 | 2004-10-12 | Formway Furniture Limited | Arm assembly for a chair |
US6817667B2 (en) | 2000-09-28 | 2004-11-16 | Formway Furniture Limited | Reclinable chair |
US7798573B2 (en) | 2000-09-28 | 2010-09-21 | Formway Furniture Limited | Reclinable chair |
WO2009134451A1 (fr) * | 2008-05-02 | 2009-11-05 | Haworth, Inc. | Mécanisme de tension pour une chaise sensible au poids |
US8272693B2 (en) | 2008-05-02 | 2012-09-25 | Haworth, Inc. | Tension mechanism for a weight-responsive chair |
CN102098945B (zh) * | 2008-05-02 | 2013-11-06 | 霍沃思公司 | 用于重力响应式椅子的张力机构 |
WO2015196850A1 (fr) * | 2014-06-26 | 2015-12-30 | 陈国巨 | Chaise avec coussin de siège se déplaçant vers l'avant et vers le bas simultanément pendant l'inclinaison vers l'arrière du dossier de chaise |
US10575648B2 (en) | 2015-04-13 | 2020-03-03 | Steelcase Inc. | Seating arrangement |
US11096497B2 (en) | 2015-04-13 | 2021-08-24 | Steelcase Inc. | Seating arrangement |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US11324325B2 (en) | 2015-04-13 | 2022-05-10 | Steelcase Inc. | Seating arrangement |
WO2017135831A1 (fr) * | 2016-02-05 | 2017-08-10 | Formway Furniture Limited | Chaise et éléments |
US11122901B2 (en) | 2016-02-05 | 2021-09-21 | Formway Furniture Limited | Chair and components |
US11864658B2 (en) | 2016-02-05 | 2024-01-09 | Formway Furniture Limited | Chair and components |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11786039B2 (en) | 2019-12-13 | 2023-10-17 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11805913B2 (en) | 2019-12-13 | 2023-11-07 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
Also Published As
Publication number | Publication date |
---|---|
DE4233628A1 (de) | 1994-04-07 |
DE59301201D1 (de) | 1996-02-01 |
ATE131701T1 (de) | 1996-01-15 |
ES2052470T3 (es) | 1996-04-16 |
ES2052470T1 (es) | 1994-07-16 |
EP0591932B1 (fr) | 1995-12-20 |
GR940300043T1 (en) | 1994-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1256293B1 (fr) | Chaise, notamment chaise de bureau | |
DE2931072C2 (de) | Beschlag für einen verstellbaren Sessel | |
DE3428960C2 (fr) | ||
EP0343450B1 (fr) | Chaise, notamment chaise de travail ou de bureau | |
EP1301106A1 (fr) | Chaise | |
EP1256292A1 (fr) | Une chaise de bureau ajustable | |
DE102006047889A1 (de) | Sitzmöbel, insbesondere Bürostuhl | |
DE202007018357U1 (de) | Stuhl | |
WO2007038879A1 (fr) | Siege | |
DE3632131A1 (de) | Funktions-sitzmoebel | |
DE102015101546B4 (de) | Synchronmechanik | |
EP2051606A2 (fr) | Fauteuil | |
DE202006005645U1 (de) | Stuhl, insbesondere Bürostuhl | |
EP0591932B1 (fr) | Chaise, notamment chaise de travail | |
EP1652505B1 (fr) | Fauteuil de traitement, en particulier fauteuil de traitement dentaire | |
DE3002032A1 (de) | Verstellbarer lehnstuhl mit wandausweichender wirkung | |
EP2888975B1 (fr) | Siège de travail à mécanisme synchrone et ressort spiral | |
EP2070446B1 (fr) | Siège de bureau doté d'un dossier inclinable et de moyens destinés à limiter l'inclinaison du dossier | |
WO1980001534A1 (fr) | Chaise | |
DE4216159A1 (de) | Arbeitsstuhl mit Rückenlehne und Rücken-Becken Synchronmechanik | |
EP1989961B1 (fr) | Mécanisme de synchronisation pour chaises de bureau | |
DE4306546A1 (fr) | ||
DE4219599C2 (de) | Synchronverstelleinrichtung für Bürostühle oder dergleichen | |
DE19921153A1 (de) | Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhles | |
EP1909615A1 (fr) | Siege, notamment siege de bureau |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
GBC | Gb: translation of claims filed (gb section 78(7)/1977) | ||
EL | Fr: translation of claims filed | ||
IECL | Ie: translation for ep claims filed | ||
ITCL | It: translation for ep claims filed |
Representative=s name: UFFICIO TECNICO ING. A. MANNUCCI |
|
17P | Request for examination filed |
Effective date: 19940608 |
|
TCNL | Nl: translation of patent claims filed | ||
17Q | First examination report despatched |
Effective date: 19950524 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19951220 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19951220 Ref country code: DK Effective date: 19951220 |
|
REF | Corresponds to: |
Ref document number: 131701 Country of ref document: AT Date of ref document: 19960115 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: 66621 |
|
REF | Corresponds to: |
Ref document number: 59301201 Country of ref document: DE Date of ref document: 19960201 |
|
ITF | It: translation for a ep patent filed |
Owner name: UFFICIO TECNICO ING. A. MANNUCCI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19960320 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2052470 Country of ref document: ES Kind code of ref document: T3 |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19960327 |
|
SC4A | Pt: translation is available |
Free format text: 960221 AVAILABILITY OF NATIONAL TRANSLATION |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19961031 |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20030911 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PT Payment date: 20030924 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20031020 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20031021 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20031024 Year of fee payment: 11 Ref country code: AT Payment date: 20031024 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20031027 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IE Payment date: 20031029 Year of fee payment: 11 Ref country code: ES Payment date: 20031029 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20031219 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041005 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041005 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041006 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050405 |
|
BERE | Be: lapsed |
Owner name: *COMFORTO G.M.B.H. Effective date: 20041031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050503 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20041005 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050630 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20050405 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20050501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051005 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20041006 |
|
BERE | Be: lapsed |
Owner name: *COMFORTO G.M.B.H. Effective date: 20041031 |