EP0359717A1 - Chair with a seat and back providing synchronised variable reclining - Google Patents

Chair with a seat and back providing synchronised variable reclining Download PDF

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Publication number
EP0359717A1
EP0359717A1 EP89830376A EP89830376A EP0359717A1 EP 0359717 A1 EP0359717 A1 EP 0359717A1 EP 89830376 A EP89830376 A EP 89830376A EP 89830376 A EP89830376 A EP 89830376A EP 0359717 A1 EP0359717 A1 EP 0359717A1
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EP
European Patent Office
Prior art keywords
connector
support
seat
fixed body
backrest
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.)
Withdrawn
Application number
EP89830376A
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German (de)
French (fr)
Inventor
Sergio Moreschi
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.)
Cofemo SpA
Original Assignee
Cofemo SpA
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 Cofemo SpA filed Critical Cofemo SpA
Publication of EP0359717A1 publication Critical patent/EP0359717A1/en
Withdrawn legal-status Critical Current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
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
    • 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 invention relates to a chair with synchronized variable tilt seat and backrest.
  • a chair or armchair of the aforementioned type which comprises articulation means between the seat and back supports, particularly simple and efficient, these supports, although they are separated, being placed one in continuation to the other without a solution of continuity, this condition being preserved in any position of inclination of the seat and the backrest.
  • the invention relates to a chair or armchair with seat and backrest with variable inclination according to claim 1.
  • the chair or armchair according to the invention comprises a base - not shown - which carries a fixed device or upright (10) or preferably adjustable in height, a body (11) fixed to the top of the device or upright (10), a support (12) for the seat (13) and a support (14) for the backrest (15).
  • the seat support and also that of the backrest are both articulated to the fixed body (11 and connected together by a synchronization connector (16) also articulated to the above-mentioned fixed body.
  • the seat and back supports can thus define a support surface that is substantially free of continuity.
  • the support (12) of the seat is articulated, in its intermediate part, to the fixed body (11) by means of an elastic or oscillating element (17), while the rear part of the support (12) is fixed to a flange (18) pivoting or oscillating on the connector (16) by means of a pin (19).
  • the connector (16) is mounted by means of an oscillation pivot (20) on the fixed support (11) in a position moved forward relative to the pin (19) of the flange (18) which carries the support of the seat, and precisely in an intermediate position diaire between the pin (19) and the elastic or oscillating element (17) which supports the support (12) of the seat.
  • the support (14) of the backrest is mounted on the fixed body (11) by means of a pivot (21) placed in a position between the oscillation pivot (20) of the connector (16) and the pin (19) of the flange (18).
  • the support (14) of the backrest is provided with lateral pins (22) for its assembly to the connector (16) at some distance from the pivots (19, 20 and 21), these pins engaging a slot (23) cut in the connector (16).
  • the pivots (19, 20, 22) which articulate the connector synchronization (16) respectively to the support (12) of the seat, to the fixed body (11) and to the support (14) of the backrest are located at the vertices of a triangle, the pivot (20) being fixed, while the others two (19, 22) are mobile.
  • the pivot (21) for the articulation of the support (14) of the backrest to the fixed body (11) is placed inside the triangle (19, 20, 22), while the contrast gas spring (25) is connected in (24) to support the file outside this triangle.
  • each oscillation or rotation of the support (12) of the seat on its elastic or oscillating support element (17) is automatically transmitted to the support (14) of the backrest through the connector (16) for a correlative variation of the inclination of the two seat-backrest elements.
  • the same thing is obviously verified following a push applied to the backrest and angularly moving it around the pivot (21) of its support (14).
  • the displacements are synchronized and contrasted by the gas spring (25) and by the additional spring means - not shown - which tend to recover the initial position of the components after the action which has not caused the variation of the inclination is stopped.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

This is an office armchair or chair, of which the seat (13) and the back (15) are articulated independently by means of their supports (12, 14) on a body (11) fixed to a device (10) which can be adjusted in respect of height and are capable of interdependent and synchronised angular displacements by means of an articulation element (16) of their supports, the angular displacements being opposed by spring or resilient means (25) which permit correlated variations of the seat (13) and of the back (15) without interrupting the continuity between seat and back. <IMAGE>

Description

L'invention concerne une chaise avec siège et dossier à inclinaison variable synchronisée.The invention relates to a chair with synchronized variable tilt seat and backrest.

On connait déjà quelques réalisations de chaises ou fauteuils de bureau dont le siège et le dossier sont à inclinaison variable synchronisée, c'est à dire suceptibles de déplacements angulaires interdépendants autour des axes horizontales de ro­tation correspondantes. En pratique, le siège peut s'incliner graduellement sur et par rapport à un corps de support fixe soutenu par un base, et le dossier varie automatiquement son inclinaison sui­vant le déplacement du siège et vice versa. La syn­chronisation des déplacements est obtenue au moyen d'une articulation des supports du siège et du dos­sier et à l'aide d'éléments élastiques de contraste.We already know some realizations of office chairs or armchairs whose seat and back are of synchronized variable inclination, that is to say susceptible of interdependent angular displacements around the corresponding horizontal axes of rotation. In practice, the seat can gradually tilt over and in relation to a fixed support body supported by a base, and the backrest automatically varies its inclination according to the movement of the seat and vice versa. The synchronization of the movements is obtained by means of an articulation of the seat and back supports and using elastic contrast elements.

Ceci dit, c'est le but de la présente inven­tion de proposer une chaise ou un fauteuil du type susmentionné qui comprend des moyens d'articulation entre les supports du siège et du dossier particu­lièrement simples et efficients, ces supports, bien qu'ils soient séparés, étant placés l'un en conti­nuation à l'autre sans solution de continuité, cette condition se conservant en toute position d'incli­naison du siège et du dossier.That said, it is the object of the present invention to provide a chair or armchair of the aforementioned type which comprises articulation means between the seat and back supports, particularly simple and efficient, these supports, although they are separated, being placed one in continuation to the other without a solution of continuity, this condition being preserved in any position of inclination of the seat and the backrest.

Partant, l'invention concerne une chaise ou un fauteuil avec siège et dossier à inclinaison varia­ble conforme à la revendication 1.Therefore, the invention relates to a chair or armchair with seat and backrest with variable inclination according to claim 1.

Des autres détails de l'objet d'invention sont spécifiés dans la description suivante avec référen­ce au dessin indicatif et ne pas limitatif ci-joint, où:

  • la Fig. 1 montre une vue latérale schématique d'une chaise ou fauteuil selon l'invention avec siège et dossier dans une première posi­tion;
  • la Fig. 2 montre une vue similaire à celle en Fig. 1, mais avec siège et dossier dans une autre position; et
  • la Fig. 3 montre une vue d'en haut des supports du siège et du dossier.
Other details of the object of invention are specified in the following description with reference to the indicative drawing and not limiting attached, where:
  • Fig. 1 shows a schematic side view of a chair or armchair according to the invention with seat and back in a first position;
  • Fig. 2 shows a view similar to that in FIG. 1, but with seat and back in another position; and
  • Fig. 3 shows a top view of the seat and back supports.

La chaise ou le fauteuil conforme à l'inven­tion comprend une base - ne pas représentée - qui porte un dispositif ou montant (10) fixe ou préfé­rablement réglable en hauteur, un corps (11) fixé au sommet du dispositif ou montant (10), un support (12) pour le siège (13) et un support (14) pour le dossier (15). Le support du siège et aussi ce du dossier sont tous les deux articulés au corps fixe (11 et reliés entre eux par un connecteur de syn­chronisation (16) articulé lui aussi au corps fixe susmentionné.The chair or armchair according to the invention comprises a base - not shown - which carries a fixed device or upright (10) or preferably adjustable in height, a body (11) fixed to the top of the device or upright (10), a support (12) for the seat (13) and a support (14) for the backrest (15). The seat support and also that of the backrest are both articulated to the fixed body (11 and connected together by a synchronization connector (16) also articulated to the above-mentioned fixed body.

Les supports du siège et du dossier peuvent ainsi définir une surface d'appui substantiellement sans solution de continuité.The seat and back supports can thus define a support surface that is substantially free of continuity.

Plus précisément, le support (12) du siège est articulé, dans sa partie intermédiaire, au corps fixe (11) au moyen d'un élément élastique ou oscil­lant (17), tandis que la partie arrière du support (12) est fixée à une bride (18) pivotant ou oscil­lant sur le connecteur (16) au moyen d'une goupille (19). Le connecteur (16) est monté au moyen d'un pivot d'oscillation (20) sur le support fixe (11) dans une position déplacée en avant par rapport à la goupille (19) de la bride (18) qui porte le support du siège, et précisément dans une position intermé­ diaire entre la goupille (19) et l'élément élastique ou oscillant (17) qui soutient le support (12) du siège.More specifically, the support (12) of the seat is articulated, in its intermediate part, to the fixed body (11) by means of an elastic or oscillating element (17), while the rear part of the support (12) is fixed to a flange (18) pivoting or oscillating on the connector (16) by means of a pin (19). The connector (16) is mounted by means of an oscillation pivot (20) on the fixed support (11) in a position moved forward relative to the pin (19) of the flange (18) which carries the support of the seat, and precisely in an intermediate position diaire between the pin (19) and the elastic or oscillating element (17) which supports the support (12) of the seat.

D'autre part, le support (14) du dossier est monté sur le corps fixe (11) au moyen d'un pivot (21) placé dans une position comprise entre le pivot d'oscillation (20) du connecteur (16) et la goupille (19) de la bride (18). En outre, le support (14) du dossier est muni de tenons latéraux (22) pour son assemblage au connecteur (16) à quelque distance des pivots (19, 20 et 21), ces tenons engageant une fente (23) coupée dans le connecteur (16).On the other hand, the support (14) of the backrest is mounted on the fixed body (11) by means of a pivot (21) placed in a position between the oscillation pivot (20) of the connector (16) and the pin (19) of the flange (18). In addition, the support (14) of the backrest is provided with lateral pins (22) for its assembly to the connector (16) at some distance from the pivots (19, 20 and 21), these pins engaging a slot (23) cut in the connector (16).

Enfin, au support (14) du dossier est pivoté en (24), c'est à dire en position excentrique par rapport au pivot (21) du support lui même, l'extré­mité d'un ressort à gaz (25) dont l'extrémité oppo­sée est reliée, en (26), à la partie avant du sup­port fixe (11), tandis que sur le pivot (21), par exemple, du support (14) du dossier on pourra monter un ressort à torsion ou autre moyen élastique - ne pas représenté - pour contribuer à reporter à la position initiale toutes les composantes après leur déplacement.Finally, at the support (14) of the backrest is pivoted at (24), that is to say in an eccentric position relative to the pivot (21) of the support itself, the end of a gas spring (25) whose l opposite end is connected, at (26), to the front part of the fixed support (11), while on the pivot (21), for example, of the support (14) of the backrest, it is possible to mount a torsion spring or the like elastic means - not shown - to help bring all the components back to the initial position after their displacement.

Comme il résulte des Figures 1 et 2 du dessin, les pivots (19, 20, 22) qui articulent le connecteur de synchronisation (16) respectivement au support (12) du siège, au corps fixe (11) et au support (14) du dossier, sont situés aux sommets d'un triangle, le pivot (20) étant fixe, tandis que les autres deux (19, 22) sont mobiles. Le pivot (21) pour l'articu­lation du support (14) du dossier au corps fixe (11) est placé au dedans du triangle (19, 20, 22), tandis que le ressort à gaz de contraste (25) est relié en (24) au support du dossier au dehors de ce triangle.As results from Figures 1 and 2 of the drawing, the pivots (19, 20, 22) which articulate the connector synchronization (16) respectively to the support (12) of the seat, to the fixed body (11) and to the support (14) of the backrest, are located at the vertices of a triangle, the pivot (20) being fixed, while the others two (19, 22) are mobile. The pivot (21) for the articulation of the support (14) of the backrest to the fixed body (11) is placed inside the triangle (19, 20, 22), while the contrast gas spring (25) is connected in (24) to support the file outside this triangle.

En vertu de l'arrangement ci-dessus chaque oscillation ou rotation du support (12) du siège sur son élément de support élastique ou oscillant (17) se transmet automatiquement au support (14) du dos­sier à travers le conneucteur (16) pour une varia­tion corrélative de l'inclinaison des deux éléments siège-dossier. La même chose se vérifie évidemment à la suite d'une poussée appliquée au dossier et le déplaçant angulairement autour du pivot (21) de son support (14). En tout cas, les déplacements sont synchronisés et contrastés par le ressort à gaz (25) et par les moyens à ressorts supplémentaires - ne pas représentés - qui tendent à récupérer la posi­tion initiale des composantes après que l'action qui n'a provoqué la variation de l'inclinaison est ces­sée.By virtue of the above arrangement, each oscillation or rotation of the support (12) of the seat on its elastic or oscillating support element (17) is automatically transmitted to the support (14) of the backrest through the connector (16) for a correlative variation of the inclination of the two seat-backrest elements. The same thing is obviously verified following a push applied to the backrest and angularly moving it around the pivot (21) of its support (14). In any case, the displacements are synchronized and contrasted by the gas spring (25) and by the additional spring means - not shown - which tend to recover the initial position of the components after the action which has not caused the variation of the inclination is stopped.

Claims (4)

1.) Chaise ou fauteuil avec un siège et un dossier articulés, au moyen de leurs supports oscil­lants (12,14), à un corps (11) fixé au sommet d'un dispositif ou montant (10) fixe ou d'hauteur régla­ble, caractérisé en ce qu'au corps fixe (11) susdit un connecteur de synchronisation (16) oscillant dans un plan vertical est pivoté en (20), au-dessous du siège, en ce que le support (12) du siège est arti­culé, dans sa partie intermédiaire, au corps fixe (11) susdit au moyen d'un élément élastique ou oscillant (17) et, dans sa partie arrière, au con­necteur (16) susdit par le moyen d'une bride (18) pivotée (19) au connecteur (16) à distance du pivot (20) le fixant au corps fixe (11), en ce que le sup­port (14) du dossier est articulé (21) au corps fixe (11) dans une position intermédiaire comprise entre la bride (18) et le pivot (20) du connecteur et la­téralement relié au connecteur (16) au moyen de te­nons (22) engageant des fentes (23) coupées dans le connecteur (16), ces tenons (22) étant situés à di­stance du pivot (20) du connecteur (16) et de l'ar­ticulation (19) du support (12) du siège sur le con­necteur (16), et en ce qu'au support (14) du dossier est relié un moyen à ressorts, par exemple un res­ sort à gaz (25), pour contraster les oscillations des éléments articulés au connecteur susmentionné.1.) Chair or armchair with an articulated seat and back, by means of their oscillating supports (12,14), to a body (11) fixed to the top of a device or upright (10) fixed or of adjustable height , characterized in that at the above-mentioned fixed body (11) a synchronizing connector (16) oscillating in a vertical plane is pivoted at (20), below the seat, in that the support (12) of the seat is articulated , in its intermediate part, to the above-mentioned fixed body (11) by means of an elastic or oscillating element (17) and, in its rear part, to the above-mentioned connector (16) by means of a pivoted flange (18) ( 19) to the connector (16) remote from the pivot (20) fixing it to the fixed body (11), in that the support (14) of the backrest is articulated (21) to the fixed body (11) in an intermediate position between the flange (18) and the pivot (20) of the connector and laterally connected to the connector (16) by means of pins (22) engaging slots (23) cut in the connector (16), these pins (22) being located at a distance from the pivot (20) of the connector (16) and the articulation (19) of the support (12) of the seat on the connector (16), and in that at the support (14) of the backrest is connected to a spring means, for example a res gas outlet (25), to contrast the oscillations of the elements articulated to the aforementioned connector. 2.) Chaise ou fauteuil selon la revendication 1), où le pivotement (20) du connecteur (16) au corps fixe (11) est placé en position intermédiaire entre les articulations (17,19) du support (12) du siège au corps fixe (11) et au connecteur (16) re­spectivement, le pivotement (21 du support (14) du dossier au corps fixe (11) étant situé dans une po­sition intermédiaire entre le pivot (20) reliant le connecteur (16) au corps fixe (11) et l'articulation (19) du support (12) du siège au corps fixe (11).2.) Chair or armchair according to claim 1), in which the pivoting (20) of the connector (16) to the fixed body (11) is placed in an intermediate position between the articulations (17,19) of the support (12) of the seat at fixed body (11) and to the connector (16) respectively, the pivot (21 of the support (14) of the backrest to the fixed body (11) being located in an intermediate position between the pivot (20) connecting the connector (16) to the body fixed (11) and the articulation (19) of the support (12) of the seat to the fixed body (11). 3.) Chaise ou fauteuil selon les revendica­tions 1 et 2), où le pivotement (20) du connecteur (16) au corps fixe (11), l'articulation (19) du sup­port (12) du siège au connecteur (16), et les tenons (22) pour la jonction du support (14) au connecteur (16) sont situés aux sommets d'un triangle et où le pivotement (21) du support (14) du dossier au corps fixe (11) est situé au dedans de ce triangle.3.) Chair or armchair according to claims 1 and 2), where the pivoting (20) of the connector (16) to the fixed body (11), the articulation (19) of the support (12) of the seat to the connector (16) , and the pins (22) for joining the support (14) to the connector (16) are located at the vertices of a triangle and where the pivot (21) of the support (14) of the backrest to the fixed body (11) is located inside this triangle. 4.) Chaise ou fauteuil selon les revendica­tions précédentes, où en correspondance à l'axe (21) d'oscillation du support (14) du dossier il y a des moyens à ressort ou élastiques qui contrastent les oscillations des éléments articulés.4.) Chair or armchair according to the preceding claims, where in correspondence with the axis (21) of oscillation of the support (14) of the backrest there are spring or elastic means which contrast the oscillations of the articulated elements.
EP89830376A 1988-09-09 1989-09-05 Chair with a seat and back providing synchronised variable reclining Withdrawn EP0359717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT521088 1988-09-09
IT8805210A IT1225145B (en) 1988-09-09 1988-09-09 CHAIR WITH SEAT AND BACK WITH SYNCHRONIZED VARIABLE INCLINATION

Publications (1)

Publication Number Publication Date
EP0359717A1 true EP0359717A1 (en) 1990-03-21

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ID=11119398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830376A Withdrawn EP0359717A1 (en) 1988-09-09 1989-09-05 Chair with a seat and back providing synchronised variable reclining

Country Status (3)

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EP (1) EP0359717A1 (en)
CA (1) CA1306412C (en)
IT (1) IT1225145B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2060507A2 (en) * 1991-06-25 1994-11-16 Normalien Srl Chairs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3537203A1 (en) * 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Work chair with inclination mechanism for seat and back
WO1986002536A1 (en) * 1984-10-25 1986-05-09 Neumueller Konrad Seat support for chairs, especially for rotating work-chairs
DE3635243A1 (en) * 1986-10-16 1988-04-28 Dauphin F W Buerositzmoebel Chair, in particular office chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3537203A1 (en) * 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Work chair with inclination mechanism for seat and back
WO1986002536A1 (en) * 1984-10-25 1986-05-09 Neumueller Konrad Seat support for chairs, especially for rotating work-chairs
DE3635243A1 (en) * 1986-10-16 1988-04-28 Dauphin F W Buerositzmoebel Chair, in particular office chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2060507A2 (en) * 1991-06-25 1994-11-16 Normalien Srl Chairs

Also Published As

Publication number Publication date
CA1306412C (en) 1992-08-18
IT1225145B (en) 1990-11-02
IT8805210A0 (en) 1988-09-09

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