WO2011032689A1 - Mécanisme de bascule pour une chaise de bureau - Google Patents

Mécanisme de bascule pour une chaise de bureau Download PDF

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Publication number
WO2011032689A1
WO2011032689A1 PCT/EP2010/005652 EP2010005652W WO2011032689A1 WO 2011032689 A1 WO2011032689 A1 WO 2011032689A1 EP 2010005652 W EP2010005652 W EP 2010005652W WO 2011032689 A1 WO2011032689 A1 WO 2011032689A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
seat
seat support
link
base
Prior art date
Application number
PCT/EP2010/005652
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 EP10765368.5A priority Critical patent/EP2477523B1/fr
Publication of WO2011032689A1 publication Critical patent/WO2011032689A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs

Definitions

  • the invention relates to a Wippmechanik for an office chair with a placeable on a chair column base support, with a seat support and with a rigidly connected to the seat support backrest support.
  • So-called synchronous mechanisms are known from the prior art. These are assemblies in the seat base of an office chair that allow a correlated seat-backrest movement. Seat support and backrest support are coupled so articulated that a pivoting movement of the backrest to the rear, as can be caused for example by leaning of the chair user to the backrest, induces a lowering movement of the rear edge of the seat down. This brings a significant
  • An object of the present invention is to provide a mechanism for an office chair, which in a
  • a Wippmechanik for an office chair with a placeable on a chair column base support, with a seat support and with a rigidly connected to the seat support backrest support is provided, wherein the seat support at two spaced apart in the seat longitudinal direction
  • Fulcrums connected to the base support is such that a pivoting movement of the backrest support to the rear bottom pivotal movement of the seat support to the rear bottom induced, which is superimposed by a linear movement of the seat support in the seat longitudinal direction to the rear.
  • a pivot point is understood to be a constructive pivot point or a functional pivot point.
  • Words does not have the fulcrum in the form of a pure
  • the pivot point may instead be realized by a rotary / sliding joint.
  • a core idea of the invention is the otherwise at
  • Synchronous mechanism can be achieved.
  • the desired rotation-translation movement can be achieved in that the connection of seat support and base support is formed at two pivot points by first and second links, which are pivotally connected to seat support or base support.
  • the arrangement of the articulation points of the handlebars on the seat carrier and base support and the distance of the articulation points of the links with each other or the distance of the articulation points of the links to each other is preferably chosen such that a particularly comfortable and ergonomic movement of the seat back seat back carrier combination.
  • the distance between the articulation points of the links with each other and thus the "effective length" of the links is greater for the rear (second) links seen in the chair longitudinal direction than for the front (first) links
  • the front (first) arm is designed such that it abuts in the non-pivoted starting position of the base body of the base support. This will be an unintentional
  • the front pivot point is realized by a linear bearing.
  • the seen in the seat longitudinal direction front pivot point at which the seat support is pivotally connected to the base support realized by a rotary / sliding joint in which the Seat support to form a pivotal connection is directly and directly hinged to the base support, while - as in the embodiment described above - a number of the rotary / sliding joint in the seat longitudinal direction spaced handlebars are provided, the one hand articulated to form pivotal connections
  • Fig. 1 is a sectional view of a first
  • Fig. 3 is a sectional view of a second
  • Fig. 4 is a sectional view of the second embodiment of the mechanism in a pivot position.
  • the rocking mechanism 1 has a base support 2, which is set by means of a cone seat 3 on the upper end of a chair column (not shown).
  • the rocking mechanism 1 comprises a substantially frame-shaped
  • the seat support 4 is for receiving or mounting a preferably padded
  • Backrest support is attached to a backrest.
  • the entire rocking mechanism 1 is with respect to her
  • Fig. 1 the starting position is shown, in which the seat support 4 assumes a substantially horizontal position.
  • Fig. 2 shows the Wippmechanik 1 in a rearwardly pivoted position.
  • Konus explanation 3 provided for the upper end of the chair column.
  • Base support 2 are arranged and seat support 4 and
  • first and second links 11, 12 are spaced from each other in the seat longitudinal direction 13 and pivotally connected to the seat support 4 and on the other hand articulated to the base support 2 to form pivotal connections 14. They thus form two spaced apart in the seat longitudinal direction 13
  • Base 7 of the base support 2 prevents accidental pivoting of the seat support 4 forward.
  • the distance of the articulation points 17, 18 of the second link 12 to each other is greater than the distance of the articulation points 15, 16 of the first link 11 to each other.
  • the pivot points 17 of the second link 12 to the seat support 4 are in the seat longitudinal direction 13 always behind the
  • Pivoting position (Fig. 2) relative to the starting position (Fig. 1) only slightly raised, but shifted by a path 24 to the rear.
  • spring elements For biasing the backrest or for defining a desired pivoting resistance of the backrest a number of spring elements are provided, which may be, for example, tension or compression springs. In the here
  • a single central compression spring 25 is provided which with its one Spring end 26 is supported on a transverse axis 27, which the
  • the guide rod 28 forms at its transverse axis 27 opposite end of a spring plate 29, which serves as a stop for the other spring end 31.
  • the vertical position of the spring plate 29 is adjustable to change the bias of the compression spring 25.
  • the rounded outer side of the spring plate 29 is in a provided with a recess in the manner of a ball socket
  • Traversing element 32 a The position of the displacement element 32 is variable relative to the base support in the vertical direction 33.
  • adjusting mechanism for example, serves via a handwheel adjustable gear transmission (not
  • the compression spring 25 When pivoting the seat carrier backrest support combination, the compression spring 25 is compressed. In other words, the user must pivot the backrest against the spring force. By adjusting the Verfahrelements 32 upwards, the compression spring 25 is compressed and thereby increases the bias of the compression spring 25. The user must therefore spend more force to pivot the seat backrest carrier combination back down.
  • This embodiment substantially corresponds to the first embodiment, with the difference that instead of front first link for articulated connection of the
  • the seat support 4 is at its front end portion 23 with the base support 2 directly, d. H. without the use of a handlebar, connected via a number of rotary / sliding joints 34.
  • Each of these joints consists of one connected to the seat support 4 or as
  • sliding member 35 which rests in a sliding guide, which is formed by two spaced-apart sliding jaws 36, 37, which are fixedly connected to the base support 2.
  • Sliding jaws 36, 37 are parts of pick-up arms, which for this purpose from the front of the
  • Base carrier base body 7 out upward in the direction
  • Both sliding jaws 36, 37 have spherical guide surfaces, which allow the

Abstract

L'invention concerne un mécanisme de bascule (1) pour une chaise de bureau comprenant un support de base (2) pouvant être placé sur une colonne de chaise, un support de siège (4) et un support de dossier relié au support de siège (4). Pour fournir un mécanisme pour une chaise de bureau qui offre un avantage en termes de confort pour une complexité de conception comparativement minime, avantage qui est comparable à celui d'un mécanisme synchrone, il est proposé de relier le support de siège (4) au support de base (2) en deux points de rotation (16, 18) espacés l'un de l'autre dans la direction longitudinale du siège (13) de telle manière qu'un mouvement de pivotement du support de dossier vers l'arrière induise un mouvement de rotation (21) du support de siège (4) vers l'arrière auquel est superposé un mouvement de translation (22) du support de siège (4) dans la direction longitudinale de siège (13) vers l'arrière.
PCT/EP2010/005652 2009-09-15 2010-09-15 Mécanisme de bascule pour une chaise de bureau WO2011032689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10765368.5A EP2477523B1 (fr) 2009-09-15 2010-09-15 Mécanisme de bascule pour une chaise de bureau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009041296 2009-09-15
DE102009041296.4 2009-09-15

Publications (1)

Publication Number Publication Date
WO2011032689A1 true WO2011032689A1 (fr) 2011-03-24

Family

ID=43244859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/005652 WO2011032689A1 (fr) 2009-09-15 2010-09-15 Mécanisme de bascule pour une chaise de bureau

Country Status (3)

Country Link
EP (1) EP2477523B1 (fr)
DE (1) DE102010045456A1 (fr)
WO (1) WO2011032689A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat
US11350750B2 (en) 2018-04-17 2022-06-07 L&P Property Management Company Tilt mechanism for a chair and chair

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1045316A (fr) * 1951-11-20 1953-11-25 Suspension pour sièges
DE3743013A1 (de) * 1987-12-18 1989-06-29 Froescher August Gmbh Co Kg Sitz-rueckenlehnen-einheit fuer arbeitsstuhl
JPH0613595U (ja) * 1992-03-27 1994-02-22 株式会社コーソー パチンコ店等店用の自動復帰椅子
JP2001327353A (ja) * 2000-05-22 2001-11-27 Takano Co Ltd 椅子のロッキング装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1045316A (fr) * 1951-11-20 1953-11-25 Suspension pour sièges
DE3743013A1 (de) * 1987-12-18 1989-06-29 Froescher August Gmbh Co Kg Sitz-rueckenlehnen-einheit fuer arbeitsstuhl
JPH0613595U (ja) * 1992-03-27 1994-02-22 株式会社コーソー パチンコ店等店用の自動復帰椅子
JP2001327353A (ja) * 2000-05-22 2001-11-27 Takano Co Ltd 椅子のロッキング装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat
US11350750B2 (en) 2018-04-17 2022-06-07 L&P Property Management Company Tilt mechanism for a chair and chair

Also Published As

Publication number Publication date
EP2477523A1 (fr) 2012-07-25
EP2477523B1 (fr) 2013-06-05
DE102010045456A1 (de) 2011-03-24

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