EP0377138B1 - Chaise - Google Patents

Chaise Download PDF

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Publication number
EP0377138B1
EP0377138B1 EP89122926A EP89122926A EP0377138B1 EP 0377138 B1 EP0377138 B1 EP 0377138B1 EP 89122926 A EP89122926 A EP 89122926A EP 89122926 A EP89122926 A EP 89122926A EP 0377138 B1 EP0377138 B1 EP 0377138B1
Authority
EP
European Patent Office
Prior art keywords
seat
chair
swivel joint
connecting element
pedestal
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.)
Expired - Lifetime
Application number
EP89122926A
Other languages
German (de)
English (en)
Other versions
EP0377138A1 (fr
Inventor
Klaus Franck
Werner Sauer
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.)
Wilkhahn Wilkening and Hahne GmbH and Co KG
Original Assignee
Wilkhahn Wilkening and Hahne GmbH and Co KG
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 Wilkhahn Wilkening and Hahne GmbH and Co KG filed Critical Wilkhahn Wilkening and Hahne GmbH and Co KG
Priority to AT89122926T priority Critical patent/ATE103478T1/de
Publication of EP0377138A1 publication Critical patent/EP0377138A1/fr
Application granted granted Critical
Publication of EP0377138B1 publication Critical patent/EP0377138B1/fr
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
    • 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
    • A47C1/03255—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
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf 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
    • A47C1/03288—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with resilient blocks

Definitions

  • the invention relates to a chair, in particular an office swivel chair, according to the preamble of patent claim 1.
  • a chair according to the preamble of claim 1 is described in the unpublished older German patent application P 37 37 491.5.
  • a front lever is connected to the base frame and the seat via two swivel joints, while a rear lever is also connected to the base frame and the seat via two further pivot joints, this rear lever having an extension projecting upwards beyond the fourth swivel joint, that carries the backrest.
  • Relative positions of the connection plane between the first and second swivel joints with respect to the vertical on the one hand and the connection plane between the third and fourth swivel joints with respect to the vertical on the other hand should ensure favorable seating positions and displacements.
  • EP-A-250 207 also discloses a chair version in which at least one rear lever is connected to the base frame on the one hand via a first swivel joint and on the other hand to the rear end of the seat via a second swivel joint, while at least one front lever is connected via a third swivel is in turn connected to the base and a fourth swivel to the front end of the seat.
  • a spring system is located between the central pillar of the base and the fourth swivel at the front end of the seat.
  • the invention has for its object to improve a chair of the type required in the preamble of claim 1 in such a way that it is particularly easy and well adapted to the natural movement of a person at a work table, especially by a relatively simple construction distinguished.
  • a user can first of all make a very natural and informal change of posture between the individual positions in an extremely advantageous manner.
  • the neutral position ie in the middle position of the backrest and seat, between the upper body and thigh as well as the upper and lower leg and also the lower leg to the floor, each angle of approximately 90 °.
  • the angle between the upper body and thigh opens, the pelvis sinks, the angle between the thigh and lower leg remains approximately 90 °, and a slightly obtuse angle is created between the lower leg and the foot or floor.
  • the pelvis is raised in the prone position of the user, thereby avoiding an uncomfortable constriction between the trunk and thigh; In contrast, there is a slightly acute angle between the lower leg and foot.
  • this chair according to the invention also enables a change of posture that is largely adapted to the natural movement of the human body.
  • the seat of the chair moves around a virtual pivot point that lies far below the resulting mechanical pivot points or axes of rotation.
  • this ideal kinematics of the chair can be achieved with extremely simple constructive means, ie for this it may already be sufficient to pull the or each back lever carrying the backrest through its lower end via only one swivel joint to the base frame connect, and the or each front connecting element between about the front seat half and the base frame can be formed by a relatively simple, limited bending elastic element, which is extremely effective in the very simple design and arrangement of the seat with a deflection movement of the backrest in the direction of its middle Prestressed neutral.
  • the good kinematics of this chair is still due to the training and arrangement the rear lever supports.
  • the first embodiment of the chair which is designed in particular as an office swivel chair, will first be explained with reference to the illustration in FIG.
  • the chair is shown in three different sitting positions, namely the representation in solid lines shows the neutral position A corresponding to the middle position, which - in the drawing - to the left inclined, dashed representation the maximum reclined position A 'and - in the drawing -
  • the right-angled, dashed representation shows the maximum forward-inclined position A ⁇ .
  • the office swivel chair shown contains a base frame 1, which may have a central column (rotating column) and, if appropriate, support or castors, and also one Seat 2 and a backrest 3.
  • the chair also has at least one rear lever 4 provided between the base frame 1 and the backrest 3.
  • This rear lever 4 is connected to the seat 2 via a swivel joint 5, which is located at the rear end of the seat 2 is located and forms a swivel connection between seat 2 and backrest 3.
  • the lower end of this rear lever 4 is connected via a swivel joint 6 to the base frame 1, in the present case preferably with an upper end 1a which is bent forward approximately at an angle.
  • the rear lever 4 is here - starting from the lower first swivel 6 - extended beyond the second swivel 5 (at the rear end of the seat 2) straight back / up, this extension 4a of the rear lever 4 carrying the backrest 3 and thus firmly connected is.
  • At least one front connecting element 7 connects the underside of the seat 2 to the underframe 1 (preferably with the foremost end 1a 'of the upper, angled end 1a from the underframe 1. While the rear lever 4 is a rigid connecting element, this is Front connecting element 7 is formed by a limited flexurally elastic element which biases the seat 2 in the direction of its central neutral position A when deflected in one direction or the other (essentially in the horizontal direction), as shown in FIG. 1 by the three different positions A, A 'and A ⁇ illustrated and indicated by a double arrow 7a.
  • the flexible front connecting element 7 can generally be rigidly clamped at one end and connected at its other end via a swivel joint be.
  • An arrangement of this flexible front connecting element 7 is very particularly advantageous and therefore preferred in such a way that its lower end 7b is rigidly clamped on the base frame 1 or on its bent front end 1a and at its upper end 7c with the seat 2 via a swivel joint 10 connected is.
  • This connecting swivel joint 10 is generally located in the front half, particularly preferably in the front third of the seat 2. The design and arrangement of this front connecting element 7 enables and thus controls a limited relative movement between the seat 2 and the base frame 1.
  • the limitedly elastic front connecting element 7 can be designed in various ways in any suitable manner.
  • this front connecting element 7 is formed by a helical tension spring.
  • this front connecting element 7 ' can be designed in the form of a buffer element made of rubber or rubber-like plastic.
  • Fig. 4 also shows a design according to which the front connecting element is designed in the form of an upright leaf spring element 7 ⁇ .
  • the first swivel joint 6 connects the lower end of the rear lever 4 to the upper end of the actual, vertically extending central column of the underframe 1, while the second pivot 5 of the rear lever 4 is articulated at the rear end 2b of the seat 2.
  • the upper end of the front connecting element 7 is approximately - as already mentioned - with the front third of the seat 2 in connection, i. H. the connecting swivel joint 10 is offset somewhat to the rear relative to the front end 2a of the seat.
  • the distance between the second swivel joint 5 and the upper end 7c of the front connecting element 7, which is connected to the seat 2 - via the swivel joint 10 - is approximately 1.5 to 2.5 times, preferably approximately twice the distance between the first pivot joint 6 and the lower end 7b of the front connecting element 7.
  • the maximum deflection of the backrest 3 from the neutral position A to the rear (item A ') is approximately 20 ° and from the neutral position to the front (item A ⁇ ) is approximately 10 °.
  • the rear lever 4 is preferably designed as part of the backrest 3; the front connecting element 7, however, can - as explained above with reference to FIGS. 2-4 - be designed as a single, preferably exchangeable, flexible element.
  • the seat 2 and the backrest 3 - as mentioned - assume the middle position shown in solid lines. If the user now leans back in the chair, the backrest 3 swings backwards about the lower first swivel joint 6, for example into the maximum rear position A '.
  • the seat 2 simultaneously performs an approximate horizontal movement and a greater lowering movement in the rear seat part than in the front seat part - in each case relative to the base frame - which is due to the combined handlebar-spring system formed by the rear lever 4 and the front connecting element 7 is effected and controlled.
  • the distance of the front seat end 2a from the floor increases only slightly.
  • the angle between the user's upper body and thigh opens during this return movement, and at the same time the pelvis lowers.
  • the angle between the thigh and lower leg remains about 90 °, while a slightly obtuse angle is created between the lower leg and foot.
  • the backrest 3 straightens up and the seat 2 moves forward, ie. H. with the horizontal movement of the seat 2 approaching, the rear seat part performs a stronger lifting movement than the front seat part (again relative to the base frame 1).
  • the user's pelvis is raised, which prevents an uncomfortable narrowing between the trunk and thigh.
  • a slightly acute angle is created between the lower leg and foot.
  • the lower end of the rear lever 4 articulated on the first swivel joint 6 is connected to a suitable spring system 9, which is indicated in this FIG. 1 as a helical spring.
  • the lower end of the rear lever 4 has an approximately lever-like projection 4b projecting downward beyond the first swivel joint 6, to which one end of the spring system 9 is connected, while the other end of a likewise projecting downward projection 1b of the forward bent upper end 1a is supported by the base frame 1.
  • this spring system 9 can be designed in any suitable and known manner, for example as a compression spring system, as spring bars, as leg springs, leaf springs, torsion springs or also as gas springs.
  • this spring system is intended to generate restoring forces which exert a counter pressure on seat 2 and backrest 3 when a deflection of the seat and backrest is brought about by a corresponding posture of the user.
  • Fig. 5 is a slightly modified embodiment of the office swivel chair compared to the previously described embodiment is illustrated, the differences in particular in the arrangement of the seat, rear levers and backrest can be seen, while the execution options of the other parts can be retained essentially unchanged, so that in this embodiment variant according to FIG. 5 the same reference numerals are used as in FIG. 1 for parts of approximately the same design, as a result of which a renewed description of these parts is largely unnecessary.
  • the seat 2 is also connected to the upper end 1a of the base frame 1 by the underside of its front third via at least one limited flexible front connecting element 7 (design and arrangement similar to that described with reference to FIGS. 1-4).
  • the side frame parts of the backrest 13 can be arranged in an approximately straight extension of the rear levers 14, ie in this case the extensions 14a of the two rear levers 14 projecting rearward / upward, which extend essentially straight beyond the second pivot joint 15, can be directly, at least in the side view pass into the backrest 13.
  • connection plane 8 between the rotary joints 15 and 6 is again considered, then in this case the connection plane 8 is in the neutral position A with respect to the vertical V by an angle ⁇ 'between approximately 15 ° and 40 °, preferably tilted backward by approximately 25 °, d. H. that is, the connecting plane 8 between the swivel joints 15 and 6 of the two rear levers 14 is steeper than in the case of FIG. 1.
  • the distance between the second swivel joint 15 and the connecting swivel joint 10 at the upper end of the connecting element 7 is approximately 1.2- up to 1.8 times, preferably about 1.4 times, the distance between the first pivot 6 and the lower end 7b of this front connecting element 7.
  • a similar spring system 9 can also be clamped between the lower end of at least one rear lever 14 and the base frame 1, as described in FIG. 1, in the example of FIG. 5.
  • the seat 2 and backrest 13 again assume approximately the A position. If the user leans back in the chair, the backrest 13 and the first swivel 6 swivel backwards, at most up to about position A '.
  • the seat 2 here simultaneously performs an approximately horizontal movement to the rear and in its rear part 2b a stronger lowering movement (compared to the lifting movement in the front seat part) relative to the base frame 1, which in turn is formed by the handlebar formed by the pair of levers 14 and the flexible front connecting element 7 Spring system is effected and controlled.
  • the distance of the front edge 2a of the seat 2 from the floor also increases only very slightly in this case.
  • the angle between the upper body and thigh opens during the return movement, whereby the user's pelvis is lowered at the same time.
  • the angle between the thigh and lower leg remains about 90 °, and a slightly obtuse angle is created between the lower leg and foot.
  • FIG. 6 finally shows a further embodiment variant of the office swivel chair, in particular a simplified embodiment variant of the exemplary embodiment last described with reference to FIG. 5, so that in FIG. 6 the same reference numerals as in FIGS. 5 and 1 are used for parts of approximately the same design can be and these parts usually do not need to be described again in detail.
  • the two rear levers 14, which are elongated rearward / upward, are in turn held in pairs and approximately parallel to each other on both sides of seat 2 and backrest 23 in a manner similar to that of the upper sections of the lever extensions 14a as in the previous example (FIG. 5).
  • the seat 2 is integrally connected to one another via its rear end 2b and the backrest 23 via its lower end 23a by means of a flexurally elastic connecting part 20 which is curved towards the rear (outside).
  • the backrest 23 is rigidly connected to the upper lever extensions 14a and - via the arched connecting part 20 - is connected to the rear end 2b of the seat 2 in a spring-movable manner.
  • the seat 2 in this embodiment variant only needs to be supported directly on the base frame 1 or its forwardly bent upper end 1 a via the flexible front connecting element 7, ie the seat 2 or its front half (better its front third) only has a direct support connection to the flexible front connecting element 7 Base 1 or 1a.
  • the flexible front connecting elements 7 can be provided next to one another in a suitable design and arrangement.
  • the pair of rear levers 14 are in this case only connected to the lower lever ends via the first, lower joint 6 to the upper end of the underframe 1 (similar to the previous examples), while the second joint provided in the previous embodiments (between these rear levers 14 and the seat 2) can be omitted.
  • the seat and the backrest are thus mounted on the base frame via at least one flexible front connecting element and at least one lever via at least one swivel joint in such a way that when the backrest is pivoted forwards or backwards, the seat is at the same time an approximately horizontal movement and thereby the rear part performs a stronger lifting or lowering movement than the front seat part.

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  • 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)

Claims (13)

  1. Chaise, en particulier chaise tournante de bureau, comprenant :
    a) un pied (1),
    b) un siège (2) et un dossier (3, 13, 23) qui sont mobiles de manière limitée l'un par rapport à l'autre et par rapport au pied,
    c) au moins un élément antérieur de liaison (7) prévu entre le pied (1) et le siège (2),
    d) au moins un levier arrière (4, 14) prévu entre le pied (1) et le dossier (3, 13, 23) et relié par une articulation pivotante (6) au pied,
    e) un mouvement de basculement du dossier (3, 13, 23) vers l'avant ou vers l'arrière ayant pour conséquence un mouvement à peu près horizontal du siège (2) et de plus, la partie arrière du siège exécutant un mouvement ascendant ou un mouvement descendant plus fort que sa partie antérieure,
       caractérisée par les particularités suivantes :
    f) l'élément antérieur de liaison (7, 7', 7'') est formé par un élément capable de fléchir élastiquement, dont une extrémité (7b) est encastrée rigidement et dont l'autre extrémité (7c) est reliée par une articulation pivotante (10).
  2. Chaise selon la revendication 1, caractérisée en ce que l'élément antérieur de liaison (7, 7', 7'') est encastré rigidement dans le pied (1) et est relié au siège (2) par une articulation pivotante (10).
  3. Chaise selon la revendication 1, caractérisée en ce que l'élément antérieur de liaison est réalisé sous la forme d'un ressort hélicoïdal de traction (7).
  4. Chaise selon la revendication 1, caractérisée en ce que l'élément antérieur de liaison est réalisé sous la forme d'un élément d'amortissement (7') en caoutchouc ou en matière synthétique élastomère.
  5. Chaise selon la revendication 1, caractérisé en ce que l'élément antérieur de liaison est réalisé sous la forme d'un élément vertical de lame de ressort (7'').
  6. Chaise selon la revendication 1, dont le levier arrière (4) est relié par la première articulation (6) au pied (1) et par une seconde articulation (5) à l'extrémité arrière du siège (2), un prolongement rectiligne 4a vers l'arrière et vers le haut de ce levier, qui va au-delà de cette seconde articulation, supportant le dossier (3), caractérisée en ce que la distance entre la seconde articulation (5) et l'extrémité supérieure (7c, 10) de l'élément antérieur de liaison (7) qui est reliée au siège (2) correspond à 1,5 à 2,5 fois, de préférence à environ 2 fois la distance comprise entre la première articulation (6) et l'extrémité inférieure (7b) de l'élément antérieur de liaison.
  7. Chaise selon la revendication 6, caractérisée en que le plan (8) de liaison entre les première et seconde articulations (6, 5) est incliné vers l'arrière lorsqu'il est en position médiane correspondant à la position neutre (A) de manière à inscrire un angle (α) compris entre 40° et 70°, de préférence d'environ 60° avec la verticale (V).
  8. Chaise selon la revendication 6, caractérisée en ce que la seconde articulation (5) se trouve à l'extrémité arrière (2b) du siège (2).
  9. Chaise selon la revendication 1, dans laquelle le levier arrière (14) est relié par la première articulation (6) au pied (1) et par une seconde articulation (15) à la moitié arrière du siège (2), le prolongement rectiligne ( 14a) vers l'arrière et vers le haut de ce levier, qui va au-delà de cette seconde articulation, supportant le dossier (13, 23) et étant solidarisé avec ce dernier, caractérisée en ce que la distance comprise entre la seconde articulation (15) et l'extrémité supérieure (7c, 10) de l'élément antérieur de liaison (7) qui est reliée au siège (2) correspond à 1,2 à 1,8 fois, de préférence à environ 1,4 fois la distance comprise entre la première articulation (6) et l'extrémité inférieure (7b) de l'élément antérieur de liaison (7).
  10. Chaise selon la revendication 9, caractérisée en ce que deux leviers arrière (14) disposés en une paire et sensiblement parallèles l'un à l'autre sont placés des deux côtés du siège (2) et du dossier (3) et en ce que le siège (2) dépasse la seconde articulation (15) vers l'arrière et la partie inférieure (13a) du dossier (13) incurvé vers l'arrière et occupant une position médiane correspondant à la position neutre (A) se trouve à distance (a) du siège (2), tandis que lorsque le dossier est en position arrière (A'), elle se trouve immédiatement au-dessus du siège (2).
  11. Chaise selon la revendication 10, caractérisée en ce que le plan (8) de liaison entre les première et seconde articulations (6, 15) occupant la position neutre (A) est incliné vers l'arrière et inscrit avec la verticale (V) un angle (α') d'environ 15° à 40°, de préférence de l'ordre d'environ 25°.
  12. Chaise selon la revendication 1, caractérisée en ce que :
    a) deux leviers arrière prolongés sensiblement vers l'arrière (14) et vers le haut forment une paire et sont disposés à peu près parallèlement l'un à l'autre des deux côtés du siège (2) et du dossier (23),
    b) l'extrémité arrière (2b) du siège (2) et l'extrémité inférieure (23a) du dossier (23) sont reliées en une pièce, mais de manière flexible élastiquement par un élément de liaison (20) incurvé vers l'arrière et
    c) la moitié antérieure du siège (2) ne comporte une liaison directe d'appui sur le pied (1) que par l'élément antérieur de liaison (7) capable de fléchir élastiquement.
  13. Chaise selon la revendication 1, dans laquelle un système à ressort (19) exerce une force agissant sur le siège (2) et sur le dossier (3, 13, 23) et s' opposant à un basculement vers l'arrière, une contrepression d'équilibrage étant ainsi obtenue selon l'attitude du corps, caractérisée en ce que le système à ressort (19) est fixé entre le pied (1) et l'extrémité inférieure (4b) du levier arrière (4, 14) qui est reliée à la première articulation (6).
EP89122926A 1989-01-05 1989-12-12 Chaise Expired - Lifetime EP0377138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89122926T ATE103478T1 (de) 1989-01-05 1989-12-12 Stuhl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3900220 1989-01-05
DE3900220A DE3900220A1 (de) 1989-01-05 1989-01-05 Stuhl

Publications (2)

Publication Number Publication Date
EP0377138A1 EP0377138A1 (fr) 1990-07-11
EP0377138B1 true EP0377138B1 (fr) 1994-03-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122926A Expired - Lifetime EP0377138B1 (fr) 1989-01-05 1989-12-12 Chaise

Country Status (11)

Country Link
US (1) US5195801A (fr)
EP (1) EP0377138B1 (fr)
JP (1) JPH0315411A (fr)
AR (1) AR244967A1 (fr)
AT (1) ATE103478T1 (fr)
AU (1) AU623958B2 (fr)
BR (1) BR7000006U (fr)
CA (1) CA2005776C (fr)
DE (2) DE3900220A1 (fr)
ES (1) ES2018450A6 (fr)
ZA (1) ZA899544B (fr)

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DE4209066C1 (fr) * 1992-03-20 1993-04-08 Simon 4807 Borgholzhausen De Desanta
CH685277A5 (de) * 1992-10-08 1995-05-31 Syntech Sa Stuhlmechanik.
GB2275867A (en) * 1993-01-27 1994-09-14 Production Tools Seat recliner mechanism
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DE4409098A1 (de) * 1994-03-17 1995-09-21 Froescher Gmbh & Co Kg Stuhl mit Neigungsmechanik
DE29612594U1 (de) * 1996-07-20 1996-09-19 Franck, Klaus-Reiner, 30449 Hannover Vorrichtung zur Synchronanpassung von Sitz- und Rückenlehne eines Stuhles an die Körperhaltung eines Benutzers
ITTO980034A1 (it) * 1998-01-16 1999-07-16 Miotto Int Comp Dispositivo meccanico per il controllo della movimentazione sincrona d i sedile e schienale di una seduta.
DE19803496C2 (de) * 1998-01-30 2001-09-06 Haworth Bueroeinrichtung Gmbh Stuhl
ITVI980182A1 (it) 1998-09-25 2000-03-25 Enrico Cioncada Sedia ad assetto variabile.
DE19849521A1 (de) * 1998-10-21 2000-04-27 Drabert Gmbh Bürostuhl mit nachführbarer Rückenlehne
NZ504871A (en) * 2000-05-22 2002-04-26 Miller Herman Inc A chair with a preload mechanism to assist in the manufacture of reclining chairs so that the spring mechanism may be easily inserted
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DE58907350D1 (de) 1994-05-05
ES2018450A6 (es) 1991-04-01
BR7000006U (pt) 1991-07-30
CA2005776A1 (fr) 1990-07-05
AU623958B2 (en) 1992-05-28
ATE103478T1 (de) 1994-04-15
US5195801A (en) 1993-03-23
CA2005776C (fr) 2000-02-01
ZA899544B (en) 1990-09-26
AU4677089A (en) 1990-07-12
AR244967A1 (es) 1993-12-30
DE3900220A1 (de) 1990-07-12
EP0377138A1 (fr) 1990-07-11
JPH0547202B2 (fr) 1993-07-16
JPH0315411A (ja) 1991-01-23

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