EP2050360B1 - Siège avec mécanisme d'amortissement - Google Patents

Siège avec mécanisme d'amortissement Download PDF

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Publication number
EP2050360B1
EP2050360B1 EP08166482A EP08166482A EP2050360B1 EP 2050360 B1 EP2050360 B1 EP 2050360B1 EP 08166482 A EP08166482 A EP 08166482A EP 08166482 A EP08166482 A EP 08166482A EP 2050360 B1 EP2050360 B1 EP 2050360B1
Authority
EP
European Patent Office
Prior art keywords
spring
arm
arms
lever
adjustment element
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.)
Not-in-force
Application number
EP08166482A
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German (de)
English (en)
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EP2050360A1 (fr
Inventor
Hans Zogg
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.)
Sitag AG
Original Assignee
Provenda Marketing AG
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Filing date
Publication date
Application filed by Provenda Marketing AG filed Critical Provenda Marketing AG
Publication of EP2050360A1 publication Critical patent/EP2050360A1/fr
Application granted granted Critical
Publication of EP2050360B1 publication Critical patent/EP2050360B1/fr
Not-in-force 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
    • A47C1/03255—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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to a passenger seat with a support, a seat part, a backrest and a suspension of the backrest.
  • a generic person seat at least one elongated spring element is present.
  • a lever is articulated about a pivot axis on the support and biased by the spring element.
  • the backrest is attached to the lever so that it is pivotable about the pivot axis and a pivoting movement takes place to the rear against the spring force of the spring element.
  • the seat part is arranged with a rear bearing on the lever or on the support. In the front bearing, the spring element and the seat part cooperate.
  • the spring element extends backwards from the front bearing.
  • a person's seat which has a seat part and a backrest, which person seat is equipped with a spring mechanism for a synchronous movement of the seat part and backrest.
  • the backrest is attached to a backrest support, which is pivotable about a back pivot axis backwards and forwards.
  • the backrest support is biased by a one-piece or multi-piece spring element, so that a pivoting movement about the back pivot axis to the rear and against the front takes place with a spring force of the spring element.
  • the seat part is articulated behind the rear pivot axis with a rear bearing on the backrest support and articulated in front of the back pivot axis with a front bearing only on the spring element auflastend.
  • the spring element is a bent spring bar.
  • the spring bar is bent in a W-shape with six 90 ° bending points. Webs between the four arms of the W form a front axle, to which a seat part is articulated. The free ends of the outer arms are fixed on a support non-pivoting and a middle bridge between the two central arms of the spring element cooperates with a spring taker of the backrest support.
  • a disadvantage of this person's seat is that the spring force acting on the back support, can not be manually adjusted to the body weight of the user.
  • FIG. 5 shows a seat in which the backrest is supported on the base frame by means of a leaf spring.
  • the leaf spring comprises at one end a rod of the base frame and at the other end a transverse strut of the backrest.
  • a rod is provided, which can be placed in different recesses formed on the base frame struts. Depending on in which pair of recesses the rod is inserted, the effect of the spring is stronger or weaker.
  • FIG. 6 shows a seat for motor vehicles. On the support element for the seat is attached via a hinge connection of the frame of the backrest. The support element is pivotable about an axis which is mounted in a box-shaped base frame. A leaf spring supports the backrest. This spring is fixed with its one end in the base frame. The other end encloses a cross strut in the frame of the backrest.
  • a passenger seat with an adjustable spring element is off WO / 0191613 known.
  • the spring mechanism can be used in passenger seats with a synchronous movement of the seat part and backrest, designed as a rocker person seats and Dactylo chairs, where the backrest is sprung independently of a seat suspension.
  • known passenger seat is therefore according to the invention a displaceable in the direction of extension of the spring element adjusting element available, with which the decisive for the spring action on the backrest length of the spring element is adjustable.
  • the spring element has at least two arms, one of which extends from a bearing block to the front and one opposite to this. These can both be resilient. But it can also be formed resilient only one of them. By virtue of the fact that the two arms are connected at their front, second ends to transmit forces, the spring effects of the two arms act together. In this sense, both arms or all following arms are called arms part of the spring element. They are not necessarily all springy, but only beneficial.
  • At least one bearing block and at least one first spring arm of the spring element are present.
  • This first spring arm is anchored with a first end in the bearing block.
  • the first spring arm extends forwards from the bearing block in the x-direction (or deviates from the x-direction by up to 45 degrees in the y-direction) from the backrest.
  • at least one spring driver is present on the backrest support, which spring driver cooperates with the second spring arm.
  • the backrest support is biased by a spring tension of the spring element thus described. But it can also be present a second spring element, which applies this bias. Then the spring element essential for the invention is biased in the unloaded basic position of the passenger seatweight.
  • This spring driver can be adjustable in the x-direction in its position on the backrest support, so that it forms an adjusting element. Is the spring driver as Adjusting element formed, it is advantageous if the or part of the bias voltage is applied by the mentioned second spring element.
  • a sliding region is formed between the second ends of the spring arms and the spring driver, and the adjusting element is displaceable along the sliding region in the x direction and connects the spring arms to one another at its respective sliding position. Forces acting on a second spring arm from the spring driver are therefore transmitted from the spring arm to the other spring arm at the sliding position of the adjusting element.
  • the decisive for the suspension of the lever length of the spring element by a displacement of the adjusting element can be shortened and extended. If both spring arms are resilient, then a shift has twice as much effect as if only one of the arms is resilient.
  • the spring element therefore requires at least two spring arms, of which only one must be resilient, the other, however, is necessary for the shortening and the extension of the effective spring portion with the adjustment.
  • the spring element preferably has two outer spring arms and at least one middle spring arm.
  • the adjusting element extends in this embodiment e.g. transverse to the spring arms and thus connects the two outer spring arms with the at least one central spring arm.
  • the backrest support interacts with the at least one middle spring arm. If the at least one central spring arm is anchored in the bearing block, the backrest support interacts with the two outer spring arms.
  • the spring element may have at least one upper spring arm and at least one lower spring arm.
  • the adjusting fixed at its sliding the distance between the two spring arms at least with respect to the loading direction of the spring arm by the spring driver.
  • the spring element may have at least one region which extends in the y-direction, and the front articulation axis for articulating the seat part to the Forming spring element.
  • the spring element may also have at least one region which extends in the y-direction and forms the pivot axis of the backrest support.
  • the adjusting element extends mainly in the y direction.
  • the one or more spring arms extend in the x direction and intersect the adjusting element on one side.
  • the one or more spring arms cross the adjustment on the opposite side.
  • the adjustment transmits in the z direction acting pressure and / or tensile forces from a spring arm to the other spring arm.
  • the adjusting element extends in the z-direction and engages around the two spring arms located one above the other in the z-direction. It then transmits compressive and / or tensile forces acting in the z-direction from one spring arm to the other spring arm.
  • Mandatory is the seat part in the front or rear storage slidably mounted in the x direction. This mobility can be achieved by scenes or by levers. Depending on the orientation of the lever or the backdrop, the displaceable bearing can be designed to be displaceable simultaneously in the z-direction.
  • the result is a seat formed as a rocker, in which the seat part and the backrest are cushioned together by the spring element.
  • the lever is a backrest support to which the backrest is attached independently of the seat portion.
  • the seat part is directly attached to the support. It can be stored swivel, or even fixed.
  • the pivotal mounting has the advantage that with the spring element a seat suspension can be achieved.
  • the seat part in a front bearing only alslastet on the spring element. As a result, a sprung rocking movement of the seat part and a depth suspension is achieved.
  • FIG. 1 or 2 has a support 13, on the support 13 a bearing block 15 and a lever 17 which is hinged to the bearing block 15 about a back pivot axis 16.
  • a backrest 18 is fixed in this passenger seat with synchronized suspension of seat part and backrest (only partially shown).
  • the cutting plane in the Figures 1 and 2 shown sections lies in an xz-plane of a three-dimensional coordinate system.
  • the vertical to the representation plane is a y-axis of the personal seat.
  • the seat therefore extends substantially in the x and y directions.
  • the backrest surface extends substantially in the z and y directions.
  • a spring element 19 is anchored in the bearing block 15.
  • the spring element 19 has a first spring arm 21 which is anchored with its first end 23 in the bearing block 15.
  • a seat part 27 is mounted on the spring element 19 at a location remote from the bearing block 15.
  • This second spring arm 31 extends from the second end 25 of the first spring arm 21 in the direction of the bearing block 15 back and there has its first end 33.
  • At its bearing block near first end 33 of the second spring arm 31 cooperates with the designed as a backrest support lever 17.
  • the seat part 27 is articulated about a front axis 29 to the spring element 19. Behind the back pivot axis 16, the seat part 27 is hinged to the lever 17 about a rear axis 39.
  • the back pivot axis 16, the front axle 29 and the rear axle 39 all extend in the y-direction.
  • the seat part 27 is slidably mounted in the x direction. This is in FIG. 2 at the front axle 29 a slot gate 37 in a journal bearing 49 and in FIG. 1 at the rear axle a slot gate 37 shown as a bearing in the lever 17.
  • the axle bearing 49 is formed on the seat member 27.
  • Axes 29 and 39 and bearings of these axles can also be formed on the respective other parts.
  • a first basic type (T1) is in FIG. 1 shown.
  • the first basic type is on the lever 17 a Spring follower 41 formed in front of the back pivot axis 16 and the first end 33 of the second spring arm 31 is pressed in the backward pivoting of the backrest support 17 by the spring driver 41 upwards.
  • a second basic type (T2) is in FIG. 2 shown.
  • the second basic type is formed on the lever 17 of the spring driver 41 behind the rear pivot axis 16. The first end 33 of the second spring arm 31 is therefore pressed downwardly when the backrest support 17 is pivoted backwards.
  • a first adjusting element 45 is present, which transfers forces between the rear first and the front second ends of the spring arms 21,31 from one to the other spring arm.
  • the adjusting element 45 is designed to be displaceable in the x-direction, so that the length of the sections of the two spring arms 21, 31 that are relevant for the suspension of the lever 17 can be adjusted with it.
  • a second adjustment member 47 which is arranged parallel to the second spring arm 31 slidably mounted on the lever 17 and the spring driver 41 comprises. By moving this second adjusting element 47, the lever arm of the lever 17 is changed, which cooperates with the spring element 19. At the same time, the effective length of the second spring arm 31 is changed.
  • the effective spring length becomes longer as the lever arm of the spring driver becomes larger. In this case, the changes partially cancel, so that larger adjustment paths are required.
  • the degree of mutual cancellation depends on the distance between a fixation point of the spring arm (e.g., at the second end 35 of the second spring arm 31 or on the bearing block 15) and the back pivot axis 16.
  • the first adjusting element 45 and the second adjusting element 47 can both be present at the same time on a passenger seat. But it can also be present only one or the other adjustment.
  • a spring bias on the lever 17 is present.
  • This spring bias is conveniently given by a bias of the spring element 19 ( Fig. 1 ). But it can also be given by a second spring element 59 ( Fig. 2 ). If the first spring element 19 is prestressed, larger forces are required for adjusting the second adjusting element 47.
  • the arms 21,31 of the spring element 19 are formed in an unloaded basic position of the chair, regardless of whether they have a bias or not, so that the adjusting element 45 can be adjusted practically without effort.
  • FIGS. 3 to 21 show a number of possibilities.
  • the many possibilities of forming the spring element 19 can be divided into two groups. In a first group (G1), the two spring arms 21, 31 lie next to one another and the forces transmitted by a spring arm on the other arm must be transported in the y direction. In a second group (G2), the two spring arms 21,31 are superimposed and the transmitted forces are transported substantially only in the z-direction. This second group can again be subdivided into two subgroups, namely a first (G2.1) in which the forces are transmitted by pressure and a second (G2.2) in which the forces are transmitted by train.
  • G2.1 first
  • G2.2 second
  • the spring element 19 may be a bent spring bar (o) with, for example, a round cross section. But it can also consist of flat spring elements (-).
  • a bent spring bar may form axles (X), such as the back pivot axis 16 (X16) or preferred. the front axle 29 (X29).
  • the spring element 19 can also be anchored at both ends in a block, regardless of the shape of its cross section. Necessary axes can then be stored in this block or formed on this block.
  • a further differentiation possibility of the various embodiments is given in the feature of the number (A) of parts of the spring element 19, whether the spring element is integrally formed (1), two-piece (2) or three-piece (3).
  • the orientation (D) of the spring arms is a distinguishing feature.
  • ) or obliquely to (/) be aligned.
  • Yet another distinction can be made on the basis of the number of bending points (B) of the spring bar or the spring bars of a spring element 19.
  • FIGS. 3 to 21 Some shown schematically. Not considered are which spring arms are resilient and whether a spring arm is stiff. Not taken into account is further, whether the spring element is used in a synchronous mechanism or not.
  • the specific features of these 19 embodiments are summarized in a table below:
  • FIG. 1 In the table, the figures (Fig.) are the abovementioned abbreviations T1 (first basic type), T2 (second basic type); G1 (first group), G2.1 (second group, first subgroup), G2.2 (second group, second subgroup); M1 (first spring arm in the middle), M2 (second spring arm in the middle); o (spring rod) and - (flat spring) assigned.
  • X16 is formed for axle 16 by spring element and X29 axis 29 formed by the spring element 19.
  • A stands for number of parts of the spring element 19.
  • D stands for the alignment to the y-axis and P for the parallelism.
  • B indicates the bending points and the numbers listed in the column indicate the number of bending points.
  • FIG. 1 first basic type
  • T2 second basic type
  • G1 first group
  • G2.1 second group, first subgroup
  • G2.2 second group, second subgroup
  • M1 first spring arm in the middle
  • M2 second spring arm in the middle
  • o spring rod
  • adjusting elements 45 are shown, which can be rolled or pushed with conical parts on non-parallel spring arms and thereby both change the effective length of the spring arm and change the bias of the two spring arms against each other.
  • the chair shown is a Dactylo-stool. His backrest 18 is attached to a lever 17 which is mounted around the back pivot axis 16 on the block 15 of the support 13.
  • the seat part 27 is mounted with a rear bearing 39 on the support 13, or on the block 15.
  • the front bearing 29 of the seat part 27 is supported here on the spring element 19.
  • the spring element 19 comprises a first resilient spring arm 21 and a second resilient spring arm 31.
  • the adjusting element 45 is mounted displaceably on the first spring arm 21 and supports the second spring arm 31 depending on the sliding position further forward or further back against the first spring arm.
  • the first spring arm 21 is anchored at its first end in the block 15.
  • the second end of the first spring arm 31 forms the front bearing 29 of the seat member 27.
  • the first spring arm 21 is there via at least two bending points in the second spring arm 31, which cooperates with the spring driver 41 of the lever 17.
  • rocking chair backrest 18 and seat part 27 are a single piece.
  • This chair shell is hinged with a rear bearing 39 on the lever 17 and articulated with a front bearing 29 at the second end of the first arm 21.
  • the first arm is not resilient in this embodiment.
  • a resilient second arm 31 is mounted, which cooperates with the spring driver 41 of the lever 17.
  • the adjusting element is displaceably mounted on the first arm and therefore defines with its sliding position the effective length of the resilient spring arm 31st
  • the second arm 31 is resilient, but preferably both.

Claims (15)

  1. Siège pour personne (11) avec un support (13) et une partie siège (27) dessus, qui s'étend principalement dans un sens x et un sens y et un dossier (18) placé derrière la partie siège (27) qui s'étend principalement dans un sens y et un sens z, siège pour personne pour lequel
    - un levier (17) est articulé sur le support (13) autour d'un axe de pivotement (16) qui s'étend dans un sens y et coopère avec un élément ressort (19) qui est étendu en longueur dans le sens x,
    - le dossier (18) est fixé directement ou indirectement au levier (17) si bien qu'il est pivotant autour de l'axe de pivotement (16) et qu'un mouvement de pivotement se fait autour de l'axe de pivotement (16) vers l'arrière à l'encontre de la force de ressort de l'élément ressort (19),
    - il existe au moins un élément de réglage (45, 47) qui coopère avec l'élément ressort (19) qui peut se déplacer dans le sens x si bien que la longueur de l'élément ressort (19) qui est déterminante pour l'effet de ressort sur le levier (17) et le dossier (18) est réglable avec l'élément de réglage (45, 47), lequel siège pour personne
    est caractérisé par les caractéristiques suivantes:
    - il existe au moins un bloc de palier (15) sur le support (13) ;
    - le moyen à ressort (19) possède au moins deux bras étirés en longueur (21, 31)
    - dont au moins l'un est configuré élastique,
    - au moins un premier bras étiré en longueur (21) est ancré dans le bloc de palier (15) et s'étend en s'éloignant du bloc de palier (15) vers un logement antérieur (29) de la partie siège (27),
    - au moins un second bras étiré en longueur (31) est relié à sa seconde extrémité à la seconde extrémité (25) du premier bras (21) en transmettant des forces et s'étend du logement antérieur (29) en direction du bloc de palier (15) et
    - il existe au moins un entraîneur à ressort (41) sur le levier (17), lequel entraîneur à ressort (41) coopère avec le second bras (31).
  2. Siège pour personne selon la revendication 1, caractérisé en ce qu'une zone coulissante est configurée entre les deux extrémités (25, 35) des bras (21, 31) d'une part et l'entraîneur à ressort (41) et le bloc de palier (15) d'autre part et que l'élément de réglage (45) est déplaçable le long de la zone coulissante en direction d'une extension en longueur des bras (21, 31) et relie les bras (21, 31) l'un à l'autre à l'endroit de glissement respectif de l'élément de réglage (45) en transmettant des forces.
  3. Siège pour personne selon la revendication 2, caractérisé en ce qu'un second élément de réglage est éventuellement réalisé par un entraîneur à ressort (41) sur le levier (17), entraîneur à ressort qui est variable en position par rapport à l'axe de pivotement (16).
  4. Siège pour personne selon la revendication 3, caractérisé en ce
    - que l'élément à ressort qui existe au moins (19) possède deux bras extérieurs (21 ; 31) et au moins un bras central (31 ; 21) parmi lesquels soit les bras extérieurs, soit le bras central, soit tous les bras sont configurés élastiques et
    - que le premier élément de réglage éventuel (45) s'étend transversalement par rapport aux bras et relie ainsi les deux bras extérieurs au bras central qui existe au moins (21).
  5. Siège pour personne selon la revendication 4, caractérisé en ce que l'élément de réglage (45) est configuré élastique.
  6. Siège pour personne selon la revendication 4 ou 5, caractérisé en ce
    - que les deux bras extérieurs (21) sont ancrés dans le bloc de palier (15)
    - et que le levier (17) coopère avec le bras central qui existe au moins (31).
  7. Siège pour personne selon la revendication 4 ou 5, caractérisé en ce
    - que le bras central qui existe au moins (21) est ancré dans le bloc de palier (15)
    - et que le support de dossier (17) coopère avec les deux bras extérieurs (31).
  8. Siège pour personne selon l'une des revendications 1 à 4,
    caractérisé en ce
    - que l'élément à ressort (19) possède au moins un bras supérieur (21 ; 31) et au moins un bras inférieur (31 ; 21) et
    - que l'élément de réglage (45) fixe à son point de coulissement l'écart entre les deux bras (21, 31) au moins pour ce qui est d'un sens de charge.
  9. Siège selon l'une des revendications 1 à 8, caractérisé en ce que l'élément à ressort (29) présente au moins une zone qui s'étend dans le sens y et qui forme l'un des axes d'articulation antérieurs (29) pour articuler la partie siège (27) sur l'élément à ressort (19).
  10. Siège pour personne selon l'une des revendications 1 à 9, caractérisé en ce que l'élément de réglage (45) s'étend dans le sens y, que le ou les premiers bras (21) croisent l'élément de réglage (45) sur l'un des côtés et le ou les seconds bras (31) croisent l'élément de réglage (45) sur le côté opposé et que l'élément de réglage (45) transmet des forces de pression et/ou de traction dans le sens z d'un bras (31 ; 21) à l'autre bras (21 ; 31).
  11. Siège pour personne selon l'une des revendications 1 à 10 et la revendication 8, caractérisé en ce que l'élément de réglage (45) s'étend dans le sens z et enveloppe les deux bras (21 ; 31) situés l'un au-dessus de l'autre dans le sens z et que l'élément de réglage (45) transmet des forces de pression et/ou de traction dans le sens z d'un bras (31 ; 21) à l'autre bras (21 ; 31).
  12. Siège pour personne selon l'une des revendications précédentes, caractérisé en ce que la partie siège (27) est positionnée mobile dans le sens x dans un logement antérieur (29) ou un logement postérieur (39).
  13. Siège pour personne selon l'une des revendications précédentes, caractérisé en ce que la partie siège (27) et le dossier (18) sont fixés ensemble sur le levier (17).
  14. Siège pour personne selon l'une des revendications 1 à 12, caractérisé en ce que le levier (17) est un support de dossier sur lequel le dossier (18) est fixé indépendamment de la partie siège (27).
  15. Siège pour personne selon la revendication 13, caractérisé en ce que la partie siège (27) est articulée dans son palier postérieur (29) sur le levier (17).
EP08166482A 2007-10-16 2008-10-13 Siège avec mécanisme d'amortissement Not-in-force EP2050360B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01610/07A CH700921B1 (de) 2007-10-16 2007-10-16 Personensitz mit einem Federelement.

Publications (2)

Publication Number Publication Date
EP2050360A1 EP2050360A1 (fr) 2009-04-22
EP2050360B1 true EP2050360B1 (fr) 2009-12-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08166482A Not-in-force EP2050360B1 (fr) 2007-10-16 2008-10-13 Siège avec mécanisme d'amortissement

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EP (1) EP2050360B1 (fr)
AT (1) ATE451037T1 (fr)
CH (1) CH700921B1 (fr)
DE (1) DE502008000244D1 (fr)

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DE102018219885A1 (de) * 2018-11-20 2020-05-20 Armin Sander Synchronmechanik für ein Sitzmöbel und Sitzmöbel

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CH708248A1 (de) * 2013-06-28 2014-12-31 Sitag Ag Sitzmöbel mit Biegefeder.
CN108323983A (zh) * 2018-04-13 2018-07-27 震旦（中国）有限公司 一种座椅骨架以及座椅

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US4854641A (en) * 1989-01-23 1989-08-08 Reineman Richard G Adjustable chair
EP0485868A1 (fr) * 1990-11-14 1992-05-20 Giroflex-Entwicklungs AG Chaise, en particulier chaise d'office
GB2271053A (en) * 1992-09-30 1994-04-06 Edward L Stulik Reclining chair
DE10026531C2 (de) 2000-05-27 2002-06-13 Roeder Peter Stuhl

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018219885A1 (de) * 2018-11-20 2020-05-20 Armin Sander Synchronmechanik für ein Sitzmöbel und Sitzmöbel
DE102018219885B4 (de) 2018-11-20 2022-02-03 Comfordy Co., Ltd. Synchronmechanik für ein Sitzmöbel und Sitzmöbel

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