WO2006114239A1 - Mecanisme synchrone - Google Patents

Mecanisme synchrone Download PDF

Info

Publication number
WO2006114239A1
WO2006114239A1 PCT/EP2006/003655 EP2006003655W WO2006114239A1 WO 2006114239 A1 WO2006114239 A1 WO 2006114239A1 EP 2006003655 W EP2006003655 W EP 2006003655W WO 2006114239 A1 WO2006114239 A1 WO 2006114239A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
backrest
seat
seat support
movement
Prior art date
Application number
PCT/EP2006/003655
Other languages
German (de)
English (en)
Inventor
Hermann Bock
Original Assignee
Bock 1 Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bock 1 Gmbh & Co. Kg filed Critical Bock 1 Gmbh & Co. Kg
Priority to EP06742628A priority Critical patent/EP1874162A1/fr
Priority to JP2008508122A priority patent/JP2008538945A/ja
Publication of WO2006114239A1 publication Critical patent/WO2006114239A1/fr
Priority to US11/926,618 priority patent/US20080272638A1/en

Links

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
    • A47C1/03272—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 invention relates to a synchronous mechanism for a correlated seat-backrest movement of an office chair, with a placeable on a chair column base support, a seat support and a backrest support.
  • synchronous mechanism is understood to mean assemblies in the seat substructure of an office chair which provide kinematics which are coupled to one another and provide a specific relative movement of the seat and backrest
  • the backrest support which extends in a conventional manner from the actual synchronizing mechanism to the rear, carries on an upwardly extending arm, the backrest of the office chair.Seat carrier and backrest support are usually coupled so articulated that a pivoting movement of the backrest to the rear - like can be caused for example by a leaning of the chair user to the backrest - induced a lowering movement of the rear edge of the seat down.
  • An object of the present invention is to provide a synchronous mechanism in which a setting of a spring force for changing the "pivoting resistance" of the backrest is not required.
  • a synchronous mechanism according to claim 1.
  • the pivotable about a transverse axis backrest support on the one hand with the base support and on the other hand with the rear end portion of the seat support is pivotally connected such that a pivoting movement of the back to the rear induces a lifting movement of the rear portion of the seat support.
  • the seat support is connected to the base support such that a lifting movement of the front portion of the seat support takes place.
  • a basic idea of the invention is that the user of the office chair "raises" himself by stressing the backrest upwards
  • Adjustment mechanisms (worm gears, gears, threaded rods, etc.) are not required. This considerably reduces the manufacturing costs of the synchronous mechanism. At the same time, the reliability increases.
  • the seat support is not only raised in its rear region, but at the same time also takes place a lifting of the front portion of the seat support, takes place synchronously carrying the seat in a defined relationship to the back to the rear top.
  • the opening angle of the backrest can be compared to in the prior art be very large known solutions. Thus, extreme supine positions are possible.
  • the office chair has a seat which is configured in such a way that, when the backrest is pivoted into a rear position, a user makes a movement that tracks the movement of the backrest, the so-called "shirt pull-out effect" can also be prevented in a particularly effective manner.
  • the lever geometry required for the "self-adjusting" mechanism of the present invention is preferably achieved in that the pivot axis of the connection of the backrest support is arranged with the base support in the chair longitudinal direction behind the hinge axis of the connection of the backrest support to the seat support.
  • a device for changing the working area can be provided.
  • the seat support spring element which is connected on the one hand with the seat support and on the other hand with a transverse bearing axis, which is connected to the base support.
  • the bearing axis is eccentric, so that by a rotation of the bearing axis by the user, a displacement of the axial center and thus a change in the spring suspension, so that preferably at least two spring force ranges ("hard” / "soft”) can be adjusted.
  • FIG. 1 is a perspective view of the synchronous mechanism obliquely from behind
  • FIG. 2 is a side view of the synchronous mechanism in section
  • Fig. 3 is a perspective view of the synchronous mechanism from the top rear
  • Fig. 4 is a plan view of the synchronous mechanism in
  • the synchronous mechanism has a base support 1, which by means of a cone seat 2 on the upper end of a
  • the synchronous mechanism comprises a substantially frame-shaped seat support 3 (see Fig. 3) and a fork-shaped in plan view backrest support 4, the cheeks 5, 6 are arranged on both sides of the base support 1 , In all figures, the basic position is shown, in which the backrest support 4 assumes a substantially vertical position.
  • On the seat support 3 is one with a padded
  • the seat 7 mounted.
  • the assembly is done using not shown fasteners in the usual way.
  • the seat 7 is fixedly mounted on the seat support 3, so that a movement of the seat support 3 at the same time has a corresponding movement of the seat 7 result.
  • a backrest On the backrest support 4, a backrest, not shown, is attached, which is height adjustable in modern office chairs.
  • the backrest can also be integrally connected to the backrest support 4.
  • the backrest support 4 is mounted on a pivot bearing 8 on the base support 1 such that the backrest support 4 is articulated via the pivot bearing 8 directly to the base support 1. This allows the
  • Backrest support 4 are pivoted to the backrest about the pivot axis 9 extending through the pivot bearing 8 in the pivoting direction S, cf. Fig. 2.
  • the pivot bearing 8 is formed in front of the front end 10 of the cheek 5, 6.
  • the backrest support 4 is connected to the front end 10 of the cheek 5, 6 via a joint 11 with the seat support 3 at its rear end region 12.
  • a pivoting about the hinge axis 13 of the joint 11 takes place.
  • the pivot axis 9 of the connection of the backrest support 4 with the base support 1 is seen in the chair longitudinal direction 14 behind the hinge axis 13 of the connection of the backrest support 4 with the seat support 3.
  • the hinge axis 13 of the connection of the backrest support 4 with the seat support 3 is above the position of the pivot axis 9 of the connection of the backrest support 4 to the base support 1.
  • the base support 1 comprises two in the direction
  • the upholstery 20 of the seat see in particular Fig. 2, consists of molded foam. It is in two different, arranged in the seat longitudinal direction 14 in a row
  • the front seating area 21, which makes up about 30% to 40% of the total length of the upholstery 20 is provided with a "normal" upholstery thickness, while the rear seating area (between 70% and 60%).
  • the cushion thickness of the rear seating area 22 is increased by at least 20 mm from the pad thickness of the front seating area 21.
  • the Art and manner of transition from the front seat 21 to the rear seat 22 is preferably very soft and flowing and executed without edges. Particularly good results were achieved with a transition region in the form of an elongated lying S.
  • the transition from the front seat 21 to the rear seat 22 is positioned so that the user essentially loads the front seat 21 in a normal ("average") sitting posture
  • the foam is preferably free in the direction of the rear seat surface end 23 in order to be able to expand to the rear.
  • an open design of the upholstery 20, without rearward limiting elements, is preferred.
  • padding is understood to mean any elastic configuration of the seat, whichever
  • molded foams are basically any other elastic materials used, such as spring packs or combinations of materials, such as foam in conjunction with silicone pads. Also, for example, the use of two-zone foam is possible.
  • the hardness of the "swivel resistance" of the backrest can be changed in the embodiment shown in two stages from “hard” to “soft.”
  • a substantially horizontally seated in the seat support 3 tension spring 24 is provided with its front end 25 at the eccentric Bearing axle 19 and with its rear end 26 is connected to the seat support 3.
  • a laterally arranged actuating element 27 see Fig. 4
  • the bearing axle 19 can be rotated about its axis from a first position to a second position 4, the rotation of the bearing shaft 19 thus also shifts the position of the front fixing of the tension spring 24.
  • the pretensioning of the tension spring 24 changes accordingly. Accordingly, the position of the bearing axis 19 is more or less hard
  • the number of tension springs 24 is not limited to one, depending on the version ngsform further, parallel tension springs 24 can be used.
  • Backrest inclination provided an unspecified explained mechanism that can be operated by means of an operating lever 28.

Abstract

L'invention concerne un mécanisme synchrone permettant un mouvement coordonné de l'assise et du dossier d'une chaise de bureau, lequel mécanisme présente un support de base pouvant être placé sur une colonne, un support d'assise et un support de dossier. L'objectif de cette invention est de fournir un mécanisme synchrone avec lequel un réglage d'une force de ressort n'est pas nécessaire pour modifier la 'résistance au pivotement' du dossier. A cet effet, le support de dossier (4), pouvant pivoter autour d'un axe transversal (9), est directement relié, de manière articulée, d'un côté au support de base (1) et, de l'autre, à la zone d'extrémité arrière du support d'assise (3), de sorte qu'un mouvement de pivotement (S) du dossier vers l'arrière induit un mouvement d'élévation (H1) de la zone arrière du support de siège (3). Parallèlement, le support de siège (3) est relié au support de base (1), de façon à permettre un mouvement d'élévation (H2) de la zone avant du support de siège (3). Un principe de base de l'invention est que l'utilisateur de cette chaise de bureau 's'élève' lui-même vers le haut en appliquant une charge sur le dossier.
PCT/EP2006/003655 2005-04-28 2006-04-21 Mecanisme synchrone WO2006114239A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06742628A EP1874162A1 (fr) 2005-04-28 2006-04-21 Mecanisme synchrone
JP2008508122A JP2008538945A (ja) 2005-04-28 2006-04-21 シンクロ機構
US11/926,618 US20080272638A1 (en) 2005-04-28 2007-10-29 Synchronization Mechanism

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005020237.3 2005-04-28
DE102005020237A DE102005020237B3 (de) 2005-04-28 2005-04-28 Synchronmechanik
DE202005006960U DE202005006960U1 (de) 2005-04-28 2005-04-28 Synchronmechanik

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/926,618 Continuation US20080272638A1 (en) 2005-04-28 2007-10-29 Synchronization Mechanism

Publications (1)

Publication Number Publication Date
WO2006114239A1 true WO2006114239A1 (fr) 2006-11-02

Family

ID=42224184

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/003655 WO2006114239A1 (fr) 2005-04-28 2006-04-21 Mecanisme synchrone

Country Status (6)

Country Link
US (1) US20080272638A1 (fr)
EP (1) EP1874162A1 (fr)
JP (1) JP2008538945A (fr)
CN (1) CN101166444A (fr)
DE (2) DE102005020237B3 (fr)
WO (1) WO2006114239A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8272693B2 (en) 2008-05-02 2012-09-25 Haworth, Inc. Tension mechanism for a weight-responsive chair
DE202016103309U1 (de) 2016-06-22 2016-07-08 Hong Kong Tiansheng International Group Limited Einstellbare Drehstuhlgrundbasis mit einem Schwingbereich nach vorne und hinten

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20070398A1 (it) * 2007-06-06 2008-12-07 Malenotti S R L "sedia con schienale oscillante"
DE202008011703U1 (de) 2008-02-22 2009-07-02 Bock 1 Gmbh & Co. Kg Mechanik für einen Bürostuhl
KR20110022040A (ko) * 2008-06-05 2011-03-04 가부시기가이샤 우찌다요우고우 기울임 가능한 등받이를 갖는 의자
DE102010046994B4 (de) * 2010-09-30 2023-01-12 Bock 1 Gmbh & Co. Kg Synchronmechanik
DE102011010099A1 (de) * 2011-02-01 2012-08-02 Bock 1 Gmbh & Co. Kg Synchronmechanik
DE102013102007B4 (de) * 2013-02-28 2023-05-04 Bock 1 Gmbh & Co. Kg Mechanik für einen Bürostuhl
CA2842019A1 (fr) * 2014-02-04 2015-08-04 Teknion Limited Fauteuil incline auto ajustable dote d'un mecanisme cantilever
EP3270733B1 (fr) * 2015-03-14 2019-05-08 Herman Miller, Inc. Ensemble mécanique destiné à une chaise et chaise munie dudit ensemble mécanique
CN106419239B (zh) * 2016-08-27 2023-12-26 永艺家具股份有限公司 座背联动椅阻尼机构的调节结构
DE102019113582B4 (de) * 2019-05-21 2022-06-15 Bock 1 Gmbh & Co. Kg Synchronmechanik
US11690455B2 (en) * 2020-09-18 2023-07-04 Dinkar Chellaram Synchronous-tilt reclining chair

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DE8534420U1 (de) * 1985-12-06 1986-02-06 Pfalzberger, Heinrich, Basel Verstellbares Sitzmöbel
US5251958A (en) * 1989-12-29 1993-10-12 Wilkhahn Wilkening & Hahne Gmbh & Co. Synchronous adjusting device for office chairs or the like
DE19810768A1 (de) * 1998-03-06 1999-09-09 Drabert Gmbh Bürostuhl mit Synchronmechanik
WO2000074531A2 (fr) * 1999-06-04 2000-12-14 Soft/View Computer Products Corp. Siege ergonomique

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IL55298A (en) * 1978-08-07 1981-07-31 Samson Ilan Chari convertible into sitting or reclining position
DE3424756A1 (de) * 1983-08-12 1985-02-28 Konrad 8501 Burgthann Neumüller Sitztraeger fuer stuehle, insbesondere arbeitsdrehstuehle
DE3521488A1 (de) * 1985-06-14 1986-12-18 August Fröscher GmbH & Co KG, 7141 Steinheim Arbeitsstuhl
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8534420U1 (de) * 1985-12-06 1986-02-06 Pfalzberger, Heinrich, Basel Verstellbares Sitzmöbel
US5251958A (en) * 1989-12-29 1993-10-12 Wilkhahn Wilkening & Hahne Gmbh & Co. Synchronous adjusting device for office chairs or the like
DE19810768A1 (de) * 1998-03-06 1999-09-09 Drabert Gmbh Bürostuhl mit Synchronmechanik
WO2000074531A2 (fr) * 1999-06-04 2000-12-14 Soft/View Computer Products Corp. Siege ergonomique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8272693B2 (en) 2008-05-02 2012-09-25 Haworth, Inc. Tension mechanism for a weight-responsive chair
DE202016103309U1 (de) 2016-06-22 2016-07-08 Hong Kong Tiansheng International Group Limited Einstellbare Drehstuhlgrundbasis mit einem Schwingbereich nach vorne und hinten

Also Published As

Publication number Publication date
EP1874162A1 (fr) 2008-01-09
US20080272638A1 (en) 2008-11-06
DE102005020237B3 (de) 2006-08-17
DE202005006960U1 (de) 2006-08-31
JP2008538945A (ja) 2008-11-13
CN101166444A (zh) 2008-04-23

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