EP3649893B1 - Réglage de la résistance au pivotement d'un composant d'un meuble - Google Patents

Réglage de la résistance au pivotement d'un composant d'un meuble Download PDF

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Publication number
EP3649893B1
EP3649893B1 EP19000496.0A EP19000496A EP3649893B1 EP 3649893 B1 EP3649893 B1 EP 3649893B1 EP 19000496 A EP19000496 A EP 19000496A EP 3649893 B1 EP3649893 B1 EP 3649893B1
Authority
EP
European Patent Office
Prior art keywords
support
backrest
spring
supporting
seat
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.)
Active
Application number
EP19000496.0A
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German (de)
English (en)
Other versions
EP3649893A1 (fr
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
Original Assignee
Bock 1 GmbH and Co KG
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Publication date
Application filed by Bock 1 GmbH and Co KG filed Critical Bock 1 GmbH and Co KG
Publication of EP3649893A1 publication Critical patent/EP3649893A1/fr
Application granted granted Critical
Publication of EP3649893B1 publication Critical patent/EP3649893B1/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
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs

Definitions

  • the seat support 4 is taken along by the backrest support 5 during a pivoting movement, as indicated by arrow 7.
  • the seat support 4 in the present case with its rear end 9, as seen in the longitudinal direction 8 of the chair, is connected to the backrest support 5 so as to be pivotable about a transverse axis 11.
  • the backrest support 5 is connected to the base support 3 so as to be pivotable about a further transverse axis 12 and the seat support 4 is connected to the base support 3, in the present case with its front end 13, as seen in the longitudinal direction 8 of the chair, using a suitable connection, e.g. B. by means of a rotary/sliding joint 14. Connections are suitable which allow the desired relative movement of the seat support 4 to the base support 3 towards the rear as seen in the longitudinal direction 8 of the chair.
  • the mechanism 1 comprises a spring mechanism 15 which has at least one spring element 16 which influences the swivel resistance of the backrest.
  • spring elements 16 two helical compression springs arranged parallel to one another and located between the seat support 4 and the base support 3 inside the mechanism 1 are provided as spring elements 16, as shown in Fig.5
  • the functionality is explained below using one of these spring elements 16 as an example.
  • the entire mechanism 1 is constructed mirror-symmetrically with respect to its central longitudinal plane, as far as the actual kinematics are concerned. In this respect, the following description always assumes that the structural elements of the actual swivel mechanism are present in pairs on both sides, unless expressly stated otherwise or shown in the figures.
  • the functional element 19 is clamped between the seat support 4 and the base support 3, and is therefore supported simultaneously on the seat support 4 and the base support 3.
  • both a first support element 21 (upper support element) assigned to the seat support 4 and a second support element 22 (lower support element) assigned to the base support 3 are provided, the together form the support device.
  • Each support element 21, 22 has a support surface 23, 24.
  • a functional element 19 is attached to this end 18 of the spring element 16, which can act on the spring end 18 in the longitudinal direction 28 of the spring via a suitable coupling element 27, such as an eyelet or a hook.
  • the coupling element 27, for example, strikes the end turns of the spring element 16 or is screwed into the spring element 16.
  • the spring mechanism 15 and the mechanical components 3, 4, 5 are coordinated in such a way that the rotation axis 36 of the upper support element 21 in the non-pivoted state, ie when the backrest is not pivoted, i.e. when the seat support 4 is still in its basic position, lies on the bearing axis 29 of the functional element 19.
  • this enables a "forceless adjustment", i.e. an adjustment of the upper support element 21 without changing the preload of the spring element 16.
  • a manually adjustable adjustment device 17 is provided for adjusting the at least one support element, here for pivoting the upper support element 21 about its axis of rotation 36.
  • the adjustment device 17 can also be designed to be driven by a motor.
  • All means for influencing the operation of the spring mechanism, in particular for adjusting the spring force, in particular the adjustable support element 21 and the adjustment device 17 are, as in the example here, preferably arranged exclusively in the seat support 4 or assigned to the seat support 4.
  • the base support 3, which only provides the second support surface can be designed to be lighter and structurally simpler than in conventional mechanisms in which the spring force adjustment takes place in the base support or by means of components attached to the base support.
  • the two bearings 31, 32 of the functional element 19 are clamped between the support surfaces 23, 24 of the upper and lower support elements 21, 22.
  • the support surface 23 of the upper support element 21 forms a first point of attack on the outer ring of the first bearing 31, while a second point of attack on the outer ring of the second bearing 32 is defined by its contact with the support surface 24 of the lower support element 22.
  • the trajectory formed by the support surfaces 23, 24, on which the functional element 19 moves during pivoting of the backrest can play a role.
  • the extent of the deflection or the spring stroke is influenced by the locking angle of the scissor arms, or more precisely by the angle of the support surfaces 23, 24 to one another. This can result in both a linear and a non-linear relationship between the swivel angle of the backrest support 5 on the one hand and the swivel force required for this swiveling on the other. This relationship is preferably linear, i.e. the force required by the user to swivel the backrest is always the same regardless of the swivel angle of the backrest.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)

Claims (5)

  1. Mécanisme (1) pour un meuble d'assise, en particulier mécanisme synchrone pour un mouvement corrélé de l'assise et du dossier d'un meuble d'assise, en particulier d'une chaise de bureau, avec un support de base (3) apte à être placé sur une colonne de chaise (2), avec un support d'assise (4) et avec un support de dossier (5), le support de dossier (5) étant relié au support d'assise (4) de telle manière, qu'un mouvement de pivotement du support de dossier (5) d'une position de base dans une position pivotée vers l'arrière induit un mouvement du support de siège (4) par rapport au support de base (3), un mécanisme à ressort (15) étant prévu, lequel mécanisme à ressort (15) présente au moins un élément à ressort (16) influençant la résistance au pivotement du dossier, dont une extrémité (18) est en liaison active avec au moins un élément fonctionnel (19), ledit au moins un élément fonctionnel (19) s'appuyant sur un dispositif d'appui, qui présente à la fois un premier élément d'appui (21) disposé sur le support de siège (4) et un deuxième élément d'appui (22) disposé sur le support de base (3), au moins un de ces éléments d'appui (21) étant conçu de façon à être réglable, en particulier de manière modifiable en emplacement et/ou position, et ledit au moins un élément fonctionnel (19) s'appuyant simultanément sur les deux éléments d'appui (21, 22), le réglage dudit au moins un élément d'appui réglable (21) permettant de modifier un angle formé par des surfaces d'appui (23, 24) des deux éléments d'appui (21, 22), cette modification de l'angle modifiant, lors d'un pivotement du support de dossier (5), le mouvement de l'élément fonctionnel (19) et donc le mode d'action de l'élément élastique (16) en fonction de cet angle.
  2. Mécanisme selon la revendication 1, dans lequel l'élément fonctionnel (19) comprend deux paliers (31, 32) mobiles indépendamment l'un de l'autre, de préférence montés sur un axe de palier commun (29).
  3. Mécanisme selon la revendication 2, dans lequel l'un des paliers (31) prend appui sur l'un des éléments d'appui (21) et l'autre palier (32) sur l'autre élément d'appui (22).
  4. Mécanisme selon la revendication 3, dans lequel le premier élément d'appui (21) est apte à tourner autour d'un axe de rotation (36) de préférence transversal à la direction longitudinale (8) de la chaise, la position de l'axe de rotation (36) coïncidant avec la position de l'axe de palier (29) pendant le réglage de l'élément d'appui (21) dans la position de base du support de dossier (5).
  5. Meuble d'assise, notamment chaise de bureau, comprenant un mécanisme (1) selon l'une des revendications 1 à 4.
EP19000496.0A 2018-11-06 2019-11-04 Réglage de la résistance au pivotement d'un composant d'un meuble Active EP3649893B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018127685.0A DE102018127685A1 (de) 2018-11-06 2018-11-06 Einstellen des Schwenkwiderstandes einer verschwenkbaren Komponente eines Sitzmöbels

Publications (2)

Publication Number Publication Date
EP3649893A1 EP3649893A1 (fr) 2020-05-13
EP3649893B1 true EP3649893B1 (fr) 2024-07-03

Family

ID=68468527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19000496.0A Active EP3649893B1 (fr) 2018-11-06 2019-11-04 Réglage de la résistance au pivotement d'un composant d'un meuble

Country Status (2)

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EP (1) EP3649893B1 (fr)
DE (1) DE102018127685A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11690455B2 (en) * 2020-09-18 2023-07-04 Dinkar Chellaram Synchronous-tilt reclining chair
NO348787B1 (en) * 2023-09-13 2025-06-02 Flokk Sp Z O O Tension adjustment system for chair mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1358821B1 (fr) * 2002-04-30 2006-04-05 Klöber Gmbh & Co. Chaise avec un accumulateur d'energie dépendant du poids d'utilisateur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015100511U1 (de) * 2015-02-03 2016-05-04 Bock 1 Gmbh & Co. Kg Synchronmechanik

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1358821B1 (fr) * 2002-04-30 2006-04-05 Klöber Gmbh & Co. Chaise avec un accumulateur d'energie dépendant du poids d'utilisateur

Also Published As

Publication number Publication date
EP3649893A1 (fr) 2020-05-13
DE102018127685A1 (de) 2020-05-07

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