EP3120732A1 - Mecanisme de siege de bureau - Google Patents

Mecanisme de siege de bureau Download PDF

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Publication number
EP3120732A1
EP3120732A1 EP16001495.7A EP16001495A EP3120732A1 EP 3120732 A1 EP3120732 A1 EP 3120732A1 EP 16001495 A EP16001495 A EP 16001495A EP 3120732 A1 EP3120732 A1 EP 3120732A1
Authority
EP
European Patent Office
Prior art keywords
support
seat
backrest
seat support
base support
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.)
Granted
Application number
EP16001495.7A
Other languages
German (de)
English (en)
Other versions
EP3120732B1 (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
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 and Co KG filed Critical Bock 1 GmbH and Co KG
Publication of EP3120732A1 publication Critical patent/EP3120732A1/fr
Application granted granted Critical
Publication of EP3120732B1 publication Critical patent/EP3120732B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C1/03255—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
    • 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
    • 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
    • A47C7/002—Chair or stool bases
    • A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs

Definitions

  • the invention relates to a mechanism for an office chair with a base support placeable on a chair column, with a arranged on the base support, relative to the base support movable seat support and coupled to the seat support backrest, wherein pivoting the backrest movement of the seat support relative to the Causes base carrier.
  • a kinematics is provided which brings a certain relative movement of the seat and backrest to each other, so that there is a correlated seat-backrest movement.
  • This seat and backrest are pivoted together backwards down.
  • the seat in the loaded state should be able to assume a position deviating from the horizontal position, slightly inclined forward.
  • the inclination resistance of the seat support is indeed adjustable.
  • this is often solved structurally complicated. Additional components increase the production and assembly costs and require a corresponding space.
  • An object of the present invention is to provide an alternative solution for adjusting the inclination resistance of the seat support of an office chair. This object is achieved by a mechanism according to claim 1.
  • Advantageous embodiments of the invention are specified in the subclaims.
  • a basic idea of the invention is to provide a seat carrier which can be tilted forward out of the horizontal against the spring force of a spring arrangement acting on the seat carrier, wherein the same spring arrangement also acts on the backrest carrier.
  • the spring arrangement used for adjusting the pivoting resistance of the backrest support is used for adjusting the inclination resistance of the seat support.
  • the seat support is, preferably using a suitable movable coupling element between the base support and the seat support, lowered in a possession of the chair in its front region against the spring force of the spring assembly and accordingly when relieving the seat by means of the spring force off automatically to its original position or Erected.
  • a suitable movable coupling element between the base support and the seat support, lowered in a possession of the chair in its front region against the spring force of the spring assembly and accordingly when relieving the seat by means of the spring force off automatically to its original position or Erected.
  • a presetting of the spring force of the spring arrangement with respect to the weight of the user has a direct effect on the side-tilt functionality.
  • the spring action for the seat tilt also harder, so that automatically results in a stronger spring action for lowering into the seat tilt position.
  • the more the swinging resistance of the backrest is adjusted the stronger the inclination resistance of the seat will be.
  • the rocking or rocking of the seat in the seat tilt position for all user weights is equally enabled and felt by all users, regardless of their weight, equally if the mechanics, in particular the spring arrangement of the mechanism, is adjusted to the user suitable.
  • the basic idea of the invention is independent of the specific movement carried out by the seat support relative to the base support. In general, however, in the movement of the seat support is a movement in the seat longitudinal direction, which is superimposed by a tilting, pivoting and / or tilting movement of the seat support.
  • the mechanism 1 for an office chair comprises a means of in Fig. 1 indicated Konusfact 2 on the upper end of a chair column (not shown) placeable, preferably fixed base support. 3
  • On the seat support 4 is usually provided with a padded seat seat (not shown) of the office chair mounted.
  • the mechanism 1 further comprises an associated both with the base support 3, and with the seat support 4, relative to the base support 3 movable backrest support 5, the pivoting causes movement of the seat support 4 relative to the base support 3.
  • the cheeks 6 of the backrest support 5 forked in plan view are arranged on both sides of the base support 3.
  • the mechanism 1 is mirror-symmetrical in terms of the central longitudinal plane, as far as the actual kinematics is concerned. In that regard, in the following description is always on both sides pairwise existing construction elements of the mechanism 1 go out.
  • front or “front” means that a component in the seat longitudinal direction 7 is arranged at the front or refers to a component extending in the direction of the front seat edge 8 or pointing in this direction
  • rear or “rear” means in that a component is arranged at the rear in the seat longitudinal direction 7 or refers to a component extending in the direction of the backrest or the backrest support 5 or the rear seat edge 9 or pointing in this direction.
  • the statements “above” and “below” refer to the intended use state of the office chair or office chair mechanism 1.
  • the backrest support 5 for forming a first connection of the seat support 4 with the base support 3 both at a rear end 11 of the seat support 4, namely with the free ends of his cheeks 6 in the vicinity of the cone seat 2 to form a transverse to the seat longitudinal direction 7 extending first seat support pivot axis 12, as well as to the base support 3, namely at one of the free ends spaced portion of his cheeks 6 to form a transverse to the seat longitudinal direction 7 extending first base support pivot axis 13, pivoted, wherein a pivoting of the backrest support 5 in the pivoting direction 14 backwards downwards, ie, causes a movement of the seat support 4 relative to the base support 3 from an upright starting position into a rear pivot position.
  • the manner of coupling the pivotable backrest support 5 to the seat support 4 plays only a minor role for the present invention. It can be, as in the present case, to act as a direct or even an indirect coupling.
  • the mechanism 1 also comprises on both sides of the base support 3, here in extension of the cheeks 6 of the backrest support 5, arranged coupling elements 15 which extend from the base support 3 in the direction of the front edge 8 of the seat support 4.
  • Each coupling element 15 is for forming a second connection of the seat support 4 with the base support 3 both at a front end 16 of the seat support 4, namely forming a transversely to the seat longitudinal direction 7 extending second seat support pivot axis 17, and to the base support 3, namely forming a transverse to the seat longitudinal direction 7 extending second base support pivot axis 18, pivoted.
  • the front ends of the coupling elements 15 terminate in two arms 19 ending on both sides of the seat support 4.
  • the coupling elements 15 are connected, for example, arranged in the interior of the seat support 4 construction elements, the mobility of the coupling elements 15 is ensured with respect to the seat support 4 in the seat longitudinal direction 7 through openings 21 in the manner of slots.
  • the backrest can perform a defined pivoting movement, 5 directly or indirectly cooperating spring elements must be provided with the backrest or the backrest support.
  • the pivoting resistance of the backrest is determined at a pivoting from a starting position into a pivoting position and the corresponding restoring force of the backrest.
  • the mechanism 1 comprises a force acting between the backrest support 5 and the seat support 4 spring assembly 22.
  • the type of spring assembly 22 and the type of possible adjustment of the spring assembly 22 are not decisive for the present invention. Therefore, the spring assembly 22 is indicated only symbolically in the figures, see Fig. 1 ,
  • the spring assembly 22 may be a number of coil springs.
  • it is one or more lentenzugfedern whose spring ends are attached to the seat carrier pivot axes 12, 17.
  • other spring elements or spring packs with a plurality of spring elements can also be used.
  • the points of application of the spring elements of the spring arrangement 22 are determined by their connections to the backrest support 5 or the seat support 4.
  • the spring elements are mounted with their ends in the seat support pivot axes 12, 17. All pivot axes 12, 13, 17, 18, but preferably at least the seat support pivot axes 12, 17 are formed as physical axes.
  • the seat support 4 is at a load of the seat support 4 by 'a user relative to the base support 3 against the spring force of the spring assembly 22 relative to the horizontal 23 tilted.
  • the seat carrier 4 engages at a first end 24 of the spring assembly 22 during tilting. By tilting so the spring assembly 22 is acted upon by the first end 24 of the spring assembly 22 is moved away from the opposite second end 25 of the spring assembly 22.
  • the backrest support 5 is pivotable relative to the base support 3 against the spring force of the spring assembly 22. Different When expressed, the backrest support 5 engages the second end 25 of the spring arrangement 22 during the pivoting of the backrest support 5.
  • the spring assembly 22, the spring force determines the pivoting resistance of the backrest support 5, determined together with the weight of the user, the strength of tilting the seat support 4.
  • Die Restoring force of the spring assembly 22 at the same time causes a partial or complete movement of the seat support 4 from the seat tilt position to its initial position when the user partially or completely relieves the seat support, so either moves on the seat or rises from the seat.
  • the weight of the user in the seat longitudinal direction is shifted forward. Due to the shift of weight, a simultaneous leaning against the backrest is excluded. If the user wants to lean against the backrest, he will first shift his weight in the seat longitudinal direction to the rear.
  • the seat support 4 then shifts back to its original position. In other words, the seat support 4 springs back to its original position before a pivoting of the backrest can take place. In other words, the seat support 4 is then in a substantially horizontal position, despite a user sitting on the chair.
  • the spring force of the spring assembly 22 is adjustable.
  • a manual presetting of the spring assembly 22 can take place.
  • Changing the spring force presetting of the spring assembly 22 is important in view of a subsequent tilting of the seat support 4.
  • the preset not only the swinging resistance of the seatback support 5 but also the seat pitching resistance to a particular user, more specifically its weight, can be adjusted.
  • the device for changing the bias voltage is preferably an adjustment device with a web element, as described in the patent application DE 10 2014 104 870.9 is described.
  • the spring assembly 22 acts between the seat support pivot axes 12, 17.
  • the position of the second seat support pivot axis 17, and thus the position of the articulation point of the coupling element 15 to the seat support 4, in the seat longitudinal direction 7 changeable, namely at a tilt of the seat support 4 and / or upon pivoting of the backrest support 5 in the pivoting direction 14th
  • the mechanism 1 is designed such that a loading of the seat support 4 by a sitting down a user, with a simultaneous pivoting of the coupling element 15, namely a lowering of the front, movable arm 19 of the coupling element 15, a lowering of the front edge 8 and the front part 16 of the seat support 4 has the result, as well as a displacement of the articulation point 17 of the coupling element 15 on the seat support 4 in the seat longitudinal direction 7 to the front, see Fig. 2 ,
  • the pivoting resistance of the backrest support 5 and the resulting seat inclination resistance results from the distance L (0) of the points of application of the spring arrangement 22, in this case the seat support pivot axes 12, 17, in the unloaded state.
  • the spring elements of the spring arrangement 22 are acted upon in a tilting of the seat support 4 and thus a movement of the seat support 4 relative to the base support 3.
  • the tension spring is curious; excited.
  • the seat support 4 In this first movement there is no movement of the seat support 4 in the seat longitudinal direction 7.
  • the seat support 4 only tilts. From a starting position, in which the seat support 4, more precisely its top 26 and thus the seat mounted thereon (not shown), in the horizontal 23, the seat support 4 by an inclination angle 27, for example, 5 ° relative to the horizontal 23 after inclined forward. If the seat support 4 is in such an inclined position, then the front edge 8 of the seat support 4 is lower than the rear edge 9 of the seat support 4, see Fig. 2 ,
  • the seat support 4 Before pivoting the backrest support 5, the seat support 4 is in its non-inclined starting position, in which it is retrieved by the spring assembly 22 when the user stands up or bends backwards for leaning against the backrest.
  • the mechanism 1 is designed such that a loading of the backrest support 5 by a leaning of the user to the backrest, with a simultaneous pivoting of the backrest support 5, a lowering of the rear edge 9 and the rear part 11 of the seat support 4th entails, as well as a displacement of the articulation point 17 of the coupling element 15 on the seat support 15 in the seat longitudinal direction 7 to the front, see Fig. 3 , The pivot point 17 of the coupling element 15 on the seat support 4 is further moved in the seat longitudinal direction 7 forward than in the seat tilt position.
  • the seat support 4 at the same time performs a movement in the seat longitudinal direction 7 to the rear.
  • the seat support 4 is moved backwards down, more specifically pulled by the backrest support 5.
  • the seat support 4 is pivoted so that the seat support 4, more precisely its top 26 and thus the seat mounted thereon (not shown), is inclined backwards and relative to the horizontal 23 has an inclination angle 28 of for example 5 °.
  • the rear edge 9 of the seat support 4 is therefore lower than the front edge 8 of the seat support 4th
  • the spring elements of the spring assembly 22 are acted upon pivoting of the backrest support 5 and thus a movement of the seat support 4 relative to the base support 3 again.
  • the distance L (2) of the points 12, 17 of the spring assembly 22 increases with respect to the distance L (0) the unschwenkten position of the backrest support 5 and is also greater than the distance L (1) of the points 12, 17 in the seat tilt position.
  • the covered spring travel .DELTA.L L (2) - L (0) is dependent on the tilt angle of the backrest.
  • the two base support pivot axes 13, 18 extend coaxially.
  • the articulation point 13 of the backrest support 5 on the base support 3 corresponds to the articulation point 18 of the coupling element 15 on the base support 3, see Fig. 1 to 3 ,
  • the two base support pivot axes 13, 18 are spaced apart in the seat longitudinal direction 7.
  • the articulation point 13 of the backrest support 5 is offset from the base support 3 in the seat longitudinal direction 7 to the articulation point 18 of the coupling element 15 on the base support 3.
  • the pivot axes 13, 18 are spaced apart.
  • center distance 29 can be by the appropriate choice of the axial distance 29, the ratio of the pivoting resistances, namely the pivotal resistance of the backrest support 5 and the seat inclination resistance of the seat support 4, change. In other words, by a more or less large axial distance 29, a matching of the proportionality of the pivoting resistances to a concrete mechanical design is possible. Thus, the mechanism 1 can be easily preset for certain audiences.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
EP16001495.7A 2015-07-22 2016-07-05 Mecanisme de siege de bureau Active EP3120732B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015111946.3A DE102015111946A1 (de) 2015-07-22 2015-07-22 Mechanik für einen Bürostuhl

Publications (2)

Publication Number Publication Date
EP3120732A1 true EP3120732A1 (fr) 2017-01-25
EP3120732B1 EP3120732B1 (fr) 2020-12-30

Family

ID=56360149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16001495.7A Active EP3120732B1 (fr) 2015-07-22 2016-07-05 Mecanisme de siege de bureau

Country Status (3)

Country Link
US (1) US10143306B2 (fr)
EP (1) EP3120732B1 (fr)
DE (1) DE102015111946A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180289159A1 (en) * 2017-04-10 2018-10-11 Bock 1 Gmbh & Co. Kg Synchronized mechanism for an office chair
US20180332967A1 (en) * 2016-09-01 2018-11-22 Ue Furniture Co., Ltd Seat structure and chair
US11350750B2 (en) 2018-04-17 2022-06-07 L&P Property Management Company Tilt mechanism for a chair and chair

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10098890B2 (en) * 2016-10-29 2018-10-16 Cipla Limited Stable carfilzomib formulations
EP4185147A4 (fr) 2020-07-22 2024-07-24 Formway Furniture Ltd Chaise

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0231530U (fr) * 1988-08-22 1990-02-28
US6234573B1 (en) * 1998-05-27 2001-05-22 Peter Röder Chair, in particular office chair
CH702970A2 (de) * 2010-04-07 2011-10-14 Sitag Ag Stuhl mit Sitzplatte und Rückenlehne.
DE102014104870A1 (de) 2014-04-04 2015-10-08 Bock 1 Gmbh & Co. Kg Mechanik für einen Bürostuhl

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
DE3781282T2 (de) * 1987-10-24 1992-12-17 Kokuyo Kk Liegesessel.
DE3930983C2 (de) * 1989-09-16 1993-09-30 Rolf Voelkle Sitzmöbel mit neigungsverstellbarer Sitzfläche
EP0485868A1 (fr) * 1990-11-14 1992-05-20 Giroflex-Entwicklungs AG Chaise, en particulier chaise d'office
IL103477A0 (en) * 1992-10-20 1993-03-15 Paltechnica Nitzanim Office and like chairs
GB9802447D0 (en) * 1998-02-04 1998-04-01 Unit Press Limited Mechanism for chair
DE10122948C1 (de) * 2001-05-11 2003-03-13 Armin Sander Stuhl, insbesondere Bürostuhl
DE10122945A1 (de) * 2001-05-11 2002-12-12 Armin Sander Stuhl, insbesondere Bürostuhl
DE102006056928B3 (de) * 2006-12-04 2008-06-05 Sato Office Gmbh Sitz mit einer Sitzplatte und einer Rückenlehne
DE102008011309B3 (de) * 2008-02-27 2009-06-04 Thonet Gmbh Bürostuhl
US7922247B2 (en) * 2008-04-18 2011-04-12 Spark Innovations, Inc. Hydraulic adjustable seat
WO2009153811A1 (fr) * 2008-06-17 2009-12-23 Co.Fe.Mo. S.P.A. Dispositif de réglage pour chaises
US9060612B2 (en) * 2011-05-17 2015-06-23 Rebecca M. Lee Balance chair
EP2896325B1 (fr) * 2014-01-20 2018-02-28 L&P Property Management Company Mécanisme d'inclinaison pour meuble pour s'asseoir et meuble de type siège comprenant celui-ci

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0231530U (fr) * 1988-08-22 1990-02-28
US6234573B1 (en) * 1998-05-27 2001-05-22 Peter Röder Chair, in particular office chair
CH702970A2 (de) * 2010-04-07 2011-10-14 Sitag Ag Stuhl mit Sitzplatte und Rückenlehne.
DE102014104870A1 (de) 2014-04-04 2015-10-08 Bock 1 Gmbh & Co. Kg Mechanik für einen Bürostuhl

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180332967A1 (en) * 2016-09-01 2018-11-22 Ue Furniture Co., Ltd Seat structure and chair
US10595636B2 (en) * 2016-09-01 2020-03-24 Ue Furniture Co., Ltd Seat structure and chair
US20180289159A1 (en) * 2017-04-10 2018-10-11 Bock 1 Gmbh & Co. Kg Synchronized mechanism for an office chair
US10610019B2 (en) * 2017-04-10 2020-04-07 Bock 1 Gmbh & Co. Kg Synchronized mechanism for an office chair
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
US10143306B2 (en) 2018-12-04
US20170020290A1 (en) 2017-01-26
EP3120732B1 (fr) 2020-12-30
DE102015111946A1 (de) 2017-01-26

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