EP3409144B1 - Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise - Google Patents

Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise Download PDF

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Publication number
EP3409144B1
EP3409144B1 EP18172103.6A EP18172103A EP3409144B1 EP 3409144 B1 EP3409144 B1 EP 3409144B1 EP 18172103 A EP18172103 A EP 18172103A EP 3409144 B1 EP3409144 B1 EP 3409144B1
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EP
European Patent Office
Prior art keywords
carrier
seat
chair
storage element
backrest
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Application number
EP18172103.6A
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German (de)
English (en)
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EP3409144A1 (fr
Inventor
Klaus Maier
Judith Daur
Carlo Shayeb
Falk Blümler
Philipp Müller
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
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Sedus Stoll AG
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Publication date
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Publication of EP3409144A1 publication Critical patent/EP3409144A1/fr
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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
    • A47C1/03277—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
    • A47C1/03255—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

Definitions

  • the present invention relates to a chair, in particular a conference or office chair, and a method for producing such a chair.
  • Office swivel chairs exist with various designs of a swivel or synchronous mechanism.
  • a synchronous mechanism specifies an exact movement sequence and has an integrated spring, which provides a preload for the movement sequence.
  • the present invention is based on the object of specifying an improved chair, in particular a conference or office chair.
  • the chair in question should be both of high quality and light and inexpensive to manufacture. Due to these properties, alternative uses, for example in the private sector, can also be developed.
  • this object is achieved by a chair with the features of claim 1 and / or by a method with the features of claim 11.
  • the idea on which the present invention is based is that of a flexible-elastic storage element arranged in the area of the translation, by means of which the chair in question can be pivoted synchronously or in a synchronous manner, as a force storage element for a predetermined movement sequence when pivoting the backrest support and the coupling coupled therewith via the translation Insert seat support.
  • the flexible-elastic storage element mentioned is coupled to the seat support and the backrest support.
  • the storage member When pivoting, the storage member is tensioned and in this way transmits a force which restores the backrest support and the seat support of the carrying device into the upright position.
  • the storage member is able to replace a biasing spring in the range of the translation.
  • the structure of the chair can thus advantageously be made significantly slimmer, which has an aesthetic effect and is therefore advantageous from a design point of view.
  • the flexible-elastic storage member forms a kinematic chain together with at least one first articulated pivot point of the translation, so that the storage member according to the invention is advantageously integrated into the transmission of movements and torques when the chair according to the invention is loaded and unloaded .
  • the storage element of the translation provided on the carrying device accordingly forms a flat gear.
  • an integration of an energy accumulator with a storage element allows a novel overall design of the chair.
  • other parts that are movable in the predetermined movement sequence can thus have a certain flexibility.
  • a new path is thus taken with regard to the predetermined sequence of movements when the chair is pivoted.
  • the seat support of the carrying device can be integrated as part of the storage element and replace articulated pivot points of the kinematic chain with the corresponding flexibility.
  • a flexible design of the parts advantageously allows a particularly slim design and the use of materials that can be easily formed.
  • the translation is provided in particular as a replacement for a conventional synchronous mechanism and preferably functions in a synchronous manner, so that when pivoting in a predetermined sequence of movements it is described as for a synchronous mechanism.
  • the backrest support and the seat support each pivot in a predetermined manner in absolute terms and relative to one another.
  • the seat support and the backrest support thus pivot differently.
  • the seat support is preferably raised slightly.
  • the translation in addition to the first articulated pivot point, the translation will also have a second articulated pivot point, which are part of the kinematic chain.
  • the backrest support can be designed to be pivotable relative to two different arms or legs of the storage element, one of these legs being able to form the seat support of the carrying device, for example.
  • the flexible-elastic storage element will represent at least two pivot points of the kinematic chain or the storage element will comprise at least two virtual pivot points.
  • the storage element is, for example, designed to be flexible in such a way that loads on the chair can be converted into elastic material deformations of the storage element by a person sitting down, which can be mechanically reinterpreted as rotations around only virtual pivot points.
  • These virtual fulcrums are arranged along the structure of the storage element, their alignment with the real articulated pivots of the translation forms a polygon and is combined with the articulated pivots of the translation to form the kinematic chain.
  • the translation is coupled to a seat base.
  • the translation thus represents a deflection of force between the backrest support, seat support and seat base and for this purpose has a first and a second pivot point, at least of which the at least one articulated pivot point of the translation is coupled to the seat base and is arranged fixedly relative thereto.
  • the translation will have a first virtual and a second virtual pivot point, which are included in the storage element, in this case the at least one articulated pivot point with a second articulated pivot point arranged on the storage element via a first link and the two virtual pivot points with one another via a second Handlebar coupled, wherein the first link is fixed to the backrest support or integrally formed with the backrest support.
  • the translation does not require a sliding joint or a link guide and is therefore free of a link. In this way, the movement sequence of a synchronous mechanism is realized with a very slim design.
  • the backrest support can be rotatably mounted at the at least one articulated pivot point with respect to the seat base, and the storage element or the seat support connected to it can be articulated at one free end either with the second articulated one Be provided pivot point at which it is rotatably connected to the backrest support is, or be flexibly connected to the backrest support, in particular via a web.
  • the connection of the seat support to the storage element formed a third virtual pivot point and the translation then has only one "real" articulated pivot point, namely the at least one already mentioned above.
  • the flexible-elastic storage element can be connected to the seat support, molded onto it or provided in one piece with it.
  • the seat support of the chair can form part of the storage element and, due to its elastic design, form part of the energy storage device, which in turn builds up and provides the restoring force.
  • the storage member of the translation can be formed with an elastically deformable plastic material, in particular a fiber-reinforced plastic, which shows the flexibly elastic property on the storage member in a suitable manner.
  • the storage member with the seat support can have a curved shape which, when the chair is at rest, enclose an acute angle of between 1 ° and 40 °, preferably between 10 ° and 30 °, in particular 25 °
  • At least one armrest support can be arranged on the support device on at least one chair side, in particular one armrest support on each chair side, which can be connected to the seat support and / or the backrest support.
  • the armrest supports can also be connected to one another, for example, a common connection can be made underneath the seat support and additionally connected to it.
  • the respective armrest support can be provided for carrying an armrest body or just an armrest cushion. Alternatively, the armrest support can also directly form an armrest body.
  • the translation has a first stop, which limits a pivoting range of the seat support and backrest support in the upright position such that when the stop is reached, the backrest support and the seat support is in the upright position against the stop-holding bias of the storage member.
  • the backrest is upright in this position.
  • a preferred location for arranging the stop can be, for example, in the vicinity of the second articulated pivot point, so that the stop is close to the seat support. In this way, for example, a handlebar in contact with the stop would not be subjected to excessive moments.
  • the translation has a second stop, which limits the pivoting range of the seat support and backrest support in a maximum pivoted position and / or the translation can be provided with a locking element, which seat support and backrest support in a selectable pivoted position against at least one Determines the direction of movement.
  • the swiveling range to the rear exceeds a maximum swiveling angle, for example of the order of 20 °, and on the other hand, if desired, the dynamics of the chair can also be restricted for a selectable period of time. This restriction or the definition can also refer to both directions of movement.
  • the second articulated pivot point or a third virtual pivot point can be arranged in a rear region and the second virtual pivot point in a front region of the seat carrier, the second link having a greater length and / or a greater inclination than the first link .
  • the seat carrier is raised more than in the rear region, so that the seat carrier is pivoted slightly backwards.
  • the length and / or inclination of the first and second links are each provided such that a ratio of a pivoting angle of the backrest support to a pivoting angle of the seat support in the rearwardly pivoted position is 2 to 1 to 4 to 1, in particular 3 to 1 , is.
  • the backrest support can be pivoted backwards by 21 °, while the seat support can be pivoted backwards by 7 °.
  • An independent height positioning of the sitting position allows, for example, a further development in the chair according to the invention, in which a manipulable height adjustment device is connected to the storage member, which can be actuated via a handle which is arranged and can be gripped in the region of the seat support. It is able to manipulate a height adjustment device, for example in the form of a gas spring, as required, even when the chair is occupied.
  • a seat element can be arranged on the seat support, which is provided fixable or fixed or is slidably provided along the seat support by a guide means .
  • a guide means can be formed, for example, a link or similar guide rail arranged on the seat support (2).
  • FIG. 1 to 3 show a chair designated as a whole by 1, which is designed, for example, as an office swivel chair with a base 35 with rollers 26.
  • a chair 1 can be seen on which a support device 4 of the chair 1 is arranged on a seat base 9.
  • the support device 4 of the chair is provided with a seat support 2 and a backrest support 3 and with a translation 5 coupling the seat support 2 with the backrest support 3.
  • the translation 5 allows the backrest support 3 and the seat support 2 to be pivoted between an upright and a pivoted-back position with a predetermined sequence of movements.
  • a flexible-elastic storage element 8 is provided and set up on the transmission 5, which provides a force which restores the upright position when the carrying device 4 is acted upon, and the flexible-elastic storage member 8 also forms a joint with at least one first articulated pivot point 10 of the transmission 5 kinematic chain 15.
  • the kinematic chain 15 mentioned is the feature of the system formed by the transmission 5, which represents a transmission and is responsible for the transmission of movements and torques. This is best based on the Fig. 3 understandable who the chair of Fig. 1 shows both with its first articulated pivot point 10 and its second articulated pivot point 11, as well as the further virtual pivot points 12, 13 that are present in the structure of the storage element 8 and by which rotational movements the flexible-elastic storage element 8 performs due to its shape in the Interaction with its material properties is able.
  • the translation 5 has a first virtual and a second virtual Pivot point 12, 13, which are encompassed by the storage element 8, and the first articulated pivot point 10 is coupled to the second articulation pivot point 11 arranged on the storage element 8 via a first link 16, indicated by the dashed-line connection of the two articulated pivot points 10, 11 in the Fig. 1 and 3rd .
  • the two virtual pivot points 12, 13 are also coupled to one another, specifically via a second link 16, only illustrated in FIG Fig. 3 by dashed lines.
  • the dashed-line connection of the second articulated pivot point 11 to the one of the virtual pivot points 12 is only intended to make their coupling to the kinematic chain 15 clear.
  • the mentioned first link 16 is firmly connected to the backrest support 3, in the Fig. 1 and 3rd it is even integrally formed with the backrest support 3.
  • a chair 1 according to the invention in which compared to the representations of the Fig. 1 and 3rd the second articulated pivot point 11 is replaced by a third virtual pivot point 14 at approximately the same location on the storage element 8 or seat support 2, which, like the other virtual pivot points 12, 13, is integrated into the structure of the storage element 8, so that the kinematic Chain 15 remains intact.
  • the ability to be represented in virtual pivot points 12, 13, 14 of the storage element 8 of the translation 5 on the chair 1 of the Fig. 2 is, as before with the Fig. 1 and 3rd the formation of the storage member 8 in an elastic deformable material, here a fiber-reinforced plastic material. This can be formed by a polyamide, for example.
  • a partially constructed chair 1 according to the invention, the seat base 9 of which supports the carrying device 4 of the chair 1 against the stand 35, which is designed as a swivel foot, with rollers 26 and which is coupled to a height-adjustable compression spring section for this purpose.
  • the chair 1 is partially constructed in the Fig. 4 in such respects, as initially only the storage element 8, which provides the transmission 5, is shown on the carrying device 4 and is permanently connected to the seat base 9.
  • the storage element 8 has a kind of curved frame 18, the frame sections 18a-18d of which surround a recess 19.
  • the two frame sections 18b, 18c assigned to the chair sides each form a curved frame side with an upper and a lower leg 20, 21, of which the lower leg 21 will form the second link 16 of the kinematic chain 15 to be assembled on the chair.
  • the storage member 8, which has a curved shape in the above-mentioned projection encloses an acute angle of the order of 25 ° in the rest position of the chair 1 with the two legs 20, 21.
  • the chair 1 is also provided with a seat support 2, so that the seat support 2 and the backrest support 3 are coupled via the transmission 5 of the storage element 8.
  • the backrest support 3 is rotatably mounted at the at least one articulated pivot point 10 with respect to the seat base 9 and that the storage element 8 or the seat support 2 connected to it is provided with the second articulated pivot point 11 in an end region of its upper leg 20 is on which this is rotatably connected to the backrest support 3.
  • the storage element 8 is formed in one piece with the backrest support 3, the first link 16 is at least in this sense designed as part of the backrest support 3.
  • the upper leg 20 of the storage member 8 is with its free end, the web 22 and the Handlebar 16 forms, by applying the pretension to the articulated pivot point 10 located in the area of the seat base 9.
  • the backrest support 3 is essentially formed by a backrest frame 30, which in turn encircles a recess 31 and can, for example, carry upholstery (not shown) or else a textile braid.
  • the flexible-elastic storage element 8 is connected to the seat support 2, which in turn is connected to one in the Fig. 7
  • Seat cushion 32 shown can be equipped as a seat element. The sliding guidance of the seat element is not shown here.
  • the translation 5 of the storage member 8 determines the sequence of movements of the carrying device with the seat support 2 and the backrest support 3 when pivoting from the upright position into a rearwardly pivoted position, as is common in the Fig. 7 are shown, the latter position being shown in dashed lines.
  • the storage member 8 is obviously designed and arranged in such a way that it enables the movement sequence of the seat support 2 and the backrest support 3 which is predetermined by the translation 5.
  • the storage member 8 provides the restoring force in the upright position, namely over the entire movement sequence, moreover this force is also present in the upright position due to the coupling under pretension.
  • Both handlebars 16 and 17 are inclined forward both in the upright position and in the pivoted-back position, so that a weight force of a person sitting on the chair 1 brings about a restoring moment and the storage element 8 designed as a force storage element therefore only has to work against the backrest force .
  • the position pivoted backwards is achieved in that a person sitting on the chair 1 leans back and thus applies a backrest force to the backrest support 3, which overcomes a spring force of the storage element 8.
  • the seat surface formed by the seat support 2 provided with a seat cushion 32 is somewhat raised overall and additionally also pivoted, but to a significantly lesser extent compared to the backrest support 3.
  • the memory element 8 is, as is also best in the Fig. 7 recognizes, in its tensioned state, loaded both on pressure and on bending and thus elastically compressed and bent.
  • the position of the support device 4 pivoted backwards is achieved by a person sitting on the chair 1 leaning backwards and thus applying a backrest force to the backrest support 3, which overcomes a spring force of the storage element 8.
  • second stop restricting the pivoting range of the seat support 2 and backrest support 3 in the pivoted position are in the area of the first or, if present, second articulated pivot point 10, 11 in the form of stop wedges provided, which are supported in the upright position and in the pivoted position at suitable points.
  • the stops are arranged and designed such that, when the first stop is reached, there is still a pretension of the storage element 8 holding the backrest support 3 and the seat support 2 in the upright position. In this way, a defined position of the translation 5, the seat support 2 and the backrest support 3 is ensured, for example, even in the upright position.

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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 (12)

  1. Chaise (1), en particulier chaise de conférence ou de bureau,
    comportant une base d'assise (9), un dispositif porteur (4) de la chaise (1) étant agencé à celle-ci, dans laquelle :
    - le dispositif porteur (4) comporte au moins un support de siège (2) et au moins un support de dossier (3),
    - le dispositif porteur (4) est doté d'une transmission (5) couplant le support de siège (2) au support de dossier, laquelle permet un pivotement du support de dossier (3) et du support de siège (2) entre une position relevée et une position inclinée vers l'arrière avec une séquence de mouvement prédéterminée,
    - un élément accumulateur flexible et élastique (8) est prévu et disposé sur la transmission (5), lequel fournit une force de rappel vers la position relevée lorsque le dispositif porteur (4) est sollicité,
    l'élément de mémoire flexible et élastique (8) forme une chaîne cinématique (15) en commun avec au moins un premier point de pivot articulé (10) de la transmission, dans laquelle l'au moins un premier point de pivot articulé (10) de la transmission (5) est couplé à la base d'assise (9) et est agencé de manière immobile par rapport à celle-ci et dans laquelle la transmission (5) comporte un premier et un deuxième point de pivot virtuel (12, 13), lesquels sont constitués de l'élément accumulateur (8), dans laquelle l'au moins un point de pivot articulé (10) est couplé avec un deuxième point de pivot articulé (11) agencé sur l'élément accumulateur (8) par le biais d'une première bielle (16) et les deux points de pivot virtuels (12, 13) sont couplés l'un à l'autre par le biais d'une deuxième bielle (17), dans laquelle la première bielle (16) est solidarisée au support de dossier (3) ou est réalisée comme intégrée au support de dossier (3).
  2. Chaise selon la revendication 1,
    dans laquelle le support de dossier (3) est disposé sur l'au moins un point de pivot articulé (10) en rotation par rapport à la base d'assise (9) et l'élément accumulateur (8) ou le support de siège (2) raccordé à celui-ci est, à une extrémité libre, ou bien prévu avec le deuxième point de pivot articulé (11), sur laquelle celui-ci est raccordé en rotation au support de dossier (3), ou bien raccordé de manière flexible au support de dossier (3), en particulier par le biais d'une traverse (17).
  3. Chaise selon la revendication 1 ou 2,
    dans laquelle l'élément accumulateur (8) flexible et élastique est prévu comme raccordé au support de siège (2), formé sur celui-ci ou réalisé d'une pièce avec celui-ci.
  4. Chaise selon l'une des revendications précédentes,
    dans laquelle l'élément accumulateur (8) de la transmission est réalisé avec un matériau plastique élastiquement déformable, en particulier un plastique renforcé de fibres.
  5. Chaise selon l'une des revendications précédentes,
    dans laquelle l'élément accumulateur (8) possède une forme courbée, laquelle forme dans la position de repos de la chaise (1) un angle aigu valant approximativement entre 1° et 40°, de préférence entre 10° et 30°, en particulier 25°.
  6. Chaise selon l'une des revendications précédentes,
    dans laquelle un support d'accoudoir (18) est agencé sur au moins un côté de chaise sur le dispositif porteur (4), un support d'accoudoir (18) étant en particulier respectivement agencé sur chaque côté de chaise, les supports d'accoudoir étant raccordés au support de siège (2) et/ou au support de dossier (3).
  7. Chaise selon l'une des revendications précédentes,
    dans laquelle la transmission (5) comporte une première butée, laquelle limite un intervalle de pivotement du support de siège (2) et du support de dossier (3) dans la position relevée de telle sorte que lorsque la butée est atteinte, une précontrainte de l'élément accumulateur (8) appuie sur le support de dossier (3) et le support de siège (2) pour les maintenir dans la position relevée sur la butée.
  8. Chaise selon l'une des revendications précédentes,
    dans laquelle la transmission (5) comporte une deuxième butée, laquelle délimite l'intervalle de pivotement du support de siège (2) et du support de dossier (3) dans une position pivotée au maximum et/ou est prévue avec un élément de verrouillage (21), lequel immobilise le support de siège (2) et le support de dossier (3) dans une position pivotée sélectionnable contre au moins une direction de mouvement.
  9. Chaise selon l'une des revendications précédentes,
    dans laquelle la longueur et/ou l'inclinaison de la première et deuxième bielle (16, 17) sont respectivement prévues de telle sorte qu'un rapport d'un angle de pivotement du support de dossier (3) à un angle de pivotement du support de siège (2) dans la position inclinée vers l'arrière vaut de 2 pour 1 à 4 pour 1, en particulier 3 pour 1.
  10. Chaise selon l'une des revendications précédentes,
    dans laquelle un dispositif de réglage de hauteur (27) manipulable est prévu et arrangé, lequel est actionnable par le biais d'une manette agencée et pouvant être saisie dans la zone du support de siège (2) ; et/ou
    dans laquelle un élément d'assise est agencé au support de siège (2), lequel est prévu comme fixe ou comme pouvant être fixé ou comme pouvant coulisser le long du support de siège (2) par le biais d'un moyen de guidage.
  11. Procédé de fabrication d'une chaise (1), en particulier d'une chaise selon l'une des revendications précédentes, avec les étapes :
    préparation d'un dispositif porteur (4) comportant un support de siège (2), un support de dossier (3) et une transmission (5) couplant le support de siège (2) au support de dossier (3), laquelle permet un pivotement du support de dossier (3) et du support de siège (2) entre une position relevée et une position inclinée vers l'arrière avec une séquence de mouvement prédéterminée ;
    couplage d'un élément accumulateur (8) prévu et disposé sur la transmission (5) au dispositif porteur (4) de telle sorte que la séquence de mouvement prédéterminée est rendue possible et une force de rappel vers la position relevée est fournie par l'élément accumulateur (8),
    dans lequel une chaîne cinématique (14) est formée par l'élément accumulateur flexible et élastique (8) avec au moins un premier point de pivot articulé (10) de la transmission, dans lequel l'au moins un premier point de pivot articulé (10) de la transmission (5) est couplé à la base d'assise (9) et est agencé de manière immobile par rapport à celle-ci et dans lequel la transmission (5) comporte un premier et un deuxième point de pivot virtuel (12, 13), lesquels sont constitués de l'élément accumulateur (8), dans lequel l'au moins un point de pivot articulé (10) est couplé avec un deuxième point de pivot articulé (11) agencé sur l'élément accumulateur (8) par le biais d'une première bielle (16) et les deux points de pivot virtuels (12, 13) sont couplés l'un à l'autre par le biais d'une deuxième bielle (17), dans lequel la première bielle (16) est solidarisée au support de dossier (3) ou est réalisée comme intégrée au support de dossier (3).
  12. Procédé selon la revendication 11,
    dans lequel l'élément accumulateur (8) présente, au moins dans une projection plane, une forme courbée avec deux pattes (20, 21), lesquelles sont raccordées au support de dossier (3) respectivement à un point de pivot articulé (10, 11) .
EP18172103.6A 2017-05-30 2018-05-14 Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise Active EP3409144B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017209041.3A DE102017209041A1 (de) 2017-05-30 2017-05-30 Stuhl, insbesondere Konferenz- oder Bürostuhl sowie Verfahren zur Herstellung eines Stuhls

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Publication Number Publication Date
EP3409144A1 EP3409144A1 (fr) 2018-12-05
EP3409144B1 true EP3409144B1 (fr) 2020-07-08

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DE (1) DE102017209041A1 (fr)

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EP3622860A1 (fr) * 2018-09-17 2020-03-18 Sedus Stoll AG Chaise pivotante, en particulier chaise de conférence ou de bureau
EP3927215A4 (fr) 2019-02-21 2023-03-15 Steelcase Inc. Ensemble support corporel et procédés d'utilisation et d'assemblage de cet ensemble
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
IT202000002332A1 (it) 2020-02-06 2021-08-06 Donati Spa Meccanismo di oscillazione per una sedia o una poltroncina
DE102020103317B4 (de) 2020-02-10 2024-05-16 Angela Eberhardt Dreidimensional beweglicher Dreh- oder Bürostuhl
WO2021178206A1 (fr) 2020-03-02 2021-09-10 Steelcase Inc. Ensemble de support de corps et ses procédés d'utilisation et d'assemblage
DE102020110707A1 (de) * 2020-04-20 2021-10-21 Bock 1 Gmbh & Co. Kg Sitzmöbel
US11812870B2 (en) 2021-02-10 2023-11-14 Steelcase Inc. Body support structure
DE102021126162A1 (de) 2021-10-08 2023-04-13 Bock 1 Gmbh & Co. Kg Mechanik für ein Sitzmöbel, insbesondere für einen Bürostuhl

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