WO2006108536A1 - Dispositif permettant de regler l'inclinaison d'assise d'une chaise - Google Patents

Dispositif permettant de regler l'inclinaison d'assise d'une chaise Download PDF

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Publication number
WO2006108536A1
WO2006108536A1 PCT/EP2006/003068 EP2006003068W WO2006108536A1 WO 2006108536 A1 WO2006108536 A1 WO 2006108536A1 EP 2006003068 W EP2006003068 W EP 2006003068W WO 2006108536 A1 WO2006108536 A1 WO 2006108536A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
support
adjusting mechanism
adjustment
seat support
Prior art date
Application number
PCT/EP2006/003068
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 EP06724023.4A priority Critical patent/EP1868467B1/fr
Priority to JP2008505773A priority patent/JP2008535592A/ja
Publication of WO2006108536A1 publication Critical patent/WO2006108536A1/fr
Priority to US11/872,117 priority patent/US20080252125A1/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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism

Definitions

  • the invention relates to a device for seat tilt adjustment of a chair, in particular an office chair.
  • High-quality office chairs are often equipped with a so-called synchronous mechanism, with the help of which the seat and backrest of the chair pivot backwards when the user reclines in a correlated movement.
  • various adjustment options are known for improving the ergonomics of office chairs, such as the height adjustment of the seat, back and armrest, the adjustability of the armrest in the longitudinal and transverse position and the longitudinal adjustment of the seat.
  • An object of the invention is to provide a seat tilt adjustment that allows a particularly safe and reliable adjustment of the seat tilt. This object is achieved by a device according to claim 1.
  • the device comprises a base support, a seat carrier connected to the base support via a hinge, and an adjustment mechanism such that pivotal movement of the seat support forward beyond a substantially horizontal basic position is optionally possible.
  • a basic idea of the invention is to pivot the seat support even beyond its basic position for the adjustment of the seat inclination of the chair.
  • the seat tilt adjustment can be switched on or off according to the invention either. This allows a particularly flexible handling, depending on the application and user request.
  • the device according to the invention can optionally be installed in an otherwise conventional synchronous mechanism. Retrofitting is possible in other words optional.
  • FIG. 1 is a perspective view of a synchronous mechanism in a horizontal basic position
  • FIG. 2 is a side view of the synchronizing mechanism of FIG. 1,
  • FIG. 3 is a side view of the synchronous mechanism of Figure 1 in tilt position
  • 4 is an exploded view of the adjusting mechanism
  • FIG. 5 is a plan view of the adjusting mechanism, adjusted for the tilting position
  • FIG. 6 is a plan view of the adjusting mechanism, adjusted for the basic position
  • FIG. 7 is a sectional view along the line AA in Fig. 6th
  • a base support 2 is placed on a chair column (not shown) on which on the one hand a pivotable about a transverse axis, hingedly connected to the base support 2 seat support 3 and on the other hand also pivotable about a transverse axis, hingedly connected to the base support 2 backrest support 4th are stored.
  • the seat support 3 of the usually provided with a padded seat seat of the office chair is mounted (not shown here for reasons of clarity).
  • the cheeks 8, 9 of the backrest support 4 which is substantially fork-shaped in plan view, are arranged on both sides of the base support 2.
  • Seat support 3 and backrest support 4 are coupled so articulated that a pivoting movement of the backrest to the rear - as can be caused for example by leaning of the user to the backrest - induces a lowering movement of the rear edge of the seat down.
  • This correlated seat-back movement provides a significant comfort advantage and is desirable for orthopedic reasons.
  • operating lever 10, 11 are provided, which serve to trigger the H ⁇ henvergna the chair column or for actuating the pivot mechanism.
  • the seat support 3 is connected at its front end portion 12 with the base support 2 via two pivot-sliding joints 13, see FIG. 7, in which one of the rotary sliding joints 13 is shown in section ,
  • Each rotary sliding joint 13 consists on the one hand of a sliding member 14 connected to the seat support 3, which on the other hand rests in a sliding guide, which by two spaced apart sliding jaws 15, 16 is formed, which are firmly connected to the base support 2.
  • the upper sliding jaw 15 abuts the seat carrier 3 at a stop element 17 explained in more detail later. This avoids that the seat support 3 performs over the substantially horizontal basic position extending beyond pivotal movement forward.
  • Both sliding jaws 15, 16 have spherical guide surfaces, which allow the sliding element 14 and thus also the seat carrier 3 connected to the sliding element 14 to be able to follow the pivoting movement back downwards.
  • the trained in the manner of a rail sliding member 14 of the seat support 3 moves in other words with its top and its underside on the guide surfaces of the upper and lower sliding block 15, 16 along, wherein the sliding member 14 in any pivotal state between the upper and lower sliding block 15, 16 is particularly safe.
  • Other types of joints can also be used.
  • the seat support 3 is an inventive
  • Adjusting mechanism 18 assigned.
  • the adjusting mechanism 18 allows, as explained in more detail below, a safe and reliable seat tilt adjustment.
  • an actuating lever 19, which is like the other operating lever 10, 11 is arranged laterally on the synchronizing mechanism 1 and can be operated by pulling out or pushing in the direction of actuation 20.
  • an inclination of the seat support 3 forward by an angle ⁇ of about 3 degrees is possible with the seat tilt adjustment. Due to the seat / backrest correlation this corresponds to a pivoting of the Backrest at an angle ß of about 8 degrees, cf. Fig. 3.
  • These angles are merely exemplary and serve to illustrate the operation. They depend in particular on the length of the stop elements 17 in the adjusting mechanism 18 or the available travel path and on the specific design of the synchronizing mechanism 1.
  • the adjusting mechanism 18 consists essentially of a base plate 21, on which the actual elements of the mechanism are mounted, and a cover plate 22. In the assembled state, the base plate 21 of the adjusting mechanism 18 is covered with the cover plate 22, which with screws 23 on the base plate 21 is attached.
  • the adjusting mechanism 18 comprises two prism-shaped stop elements 17, 17 ', which are in guide channels 24 of the adjusting mechanism 18 eino, which extend in the longitudinal direction 6.
  • double-T-shaped buffer elements 25 are used, which consist of a softer plastic material, such as rubber.
  • the front sides 26 of the stop elements 17 are completely covered by the buffer elements 25.
  • the stop elements 17 have on their backs 27 beveled engagement surfaces 28 which point toward each other and in the direction of the center of the adjustment mechanism 18.
  • two angled wedge elements 29, 30 with wedge surfaces 31 attached at their outer, mutually repellent ends abut the abutment surfaces 28 of the abutment elements 17.
  • the wedge elements 29, 30 are in turn substantially in the perpendicular to the longitudinal direction 6 extending transverse direction 32 extending guide channels 33 of the adjusting mechanism 18 and are connected to each other via a coupling mechanism 34 described in more detail below.
  • One of the wedge elements 29 has a recess 35 provided with oblique side walls, which serves as a receptacle for the one end 42 of a substantially L-shaped steel spring 36.
  • the bent end 42 of the steel spring 36 is inserted into an opening of the wedge member 29 and is rotatably fixed there.
  • the steel spring 36 is connected to the actuating lever 19.
  • the actuating lever 19 is made in two parts and consists essentially of a slightly S-shaped curved actuating arm 37, at the end of an operating knob 38 is mounted and fixed to the actuating arm 37 with screws 23 actuating slide 39, in which the other end 40 of the steel spring 36 attached is.
  • the actuating slide as well as the wedge element 29 a Opening 41, in which the bent other end 40 of the steel spring 36 is inserted.
  • the steel spring 36 is located in a fork-shaped guide member 43 on the actuating slide 39, which also serves as anti-rotation.
  • the actuating slide 39 is guided in a transverse guide 58 in the base plate 21 of the adjusting mechanism 18.
  • the actuating slide 39 has a central opening 44, in which a snap element 45 is arranged.
  • the snap element 45 serves to detect the seat tilt adjustment in the horizontal basic position or in the tilting position and is designed such that it cooperates with two correspondingly provided latching recesses 46, 47 latching, which are arranged in the base plate 21 of the adjusting mechanism 18, cf. Fig. 4.
  • the latched snap element 45 can be solved by its simple actuation of the actuator 19 from its latching.
  • This wedge element 29 which has a wedge surface 31 at its end facing the abutment element 17, serves as the driving wedge of a wedge gear and displaces the abutment element 17, which now assumes the function of a driven component, perpendicular to
  • the stop element 17 is displaced by the wedge element 29 arranged perpendicular thereto in its guide channel 24.
  • the wedge angle is preferably 45 degrees.
  • By moving the stop element 17 is still Available travel of the seat support 3 shortened by an amount corresponding to the width 48 of the outer ends of the wedge elements 29, 30.
  • the corresponding position of the adjusting mechanism 18 is shown in Fig. 6.
  • the stop element 17 is already in contact with the upper sliding jaw 15 of the rotary sliding joint 13 when it reaches the horizontal basic position. Another method beyond this basic position and thus a lowering of the seat support 3 is then no longer possible.
  • the seat support 3 is in its horizontal basic position, as shown in Fig. 2.
  • the adjusting mechanism 18 For a particularly reliable function of the adjusting mechanism 18, it is provided to use two stop elements 17, 17 ', so that a stop on the corresponding sliding jaws 15 takes place in both rotary-slide joints 13 of the seat support 3.
  • the wedge element 17 acted upon directly by the steel spring 36 is coupled to a second wedge element 30, which acts on the opposite stop element 17 'in the same way.
  • a movement of the opposite wedge member 30 against the original operating direction 20 is required.
  • a deflection of the movement takes place with the aid of a rotatably mounted on the base plate 21 of the adjusting mechanism 18 guide member 49, which serves as a kind of bridge.
  • the guide member 49 has for this purpose in the middle a bearing opening 61 for receiving a mounted on the base plate 21 of the adjusting mechanism 18 pivot 62.
  • the two wedge elements 29, 30 have at their wedge surfaces 31 opposite ends perpendicular to the direction of actuation 20 extending pin 50, the protrude into slots 51 of the guide element 49 and thus enable a mechanical coupling.
  • the coupling of the two wedge elements 29, 30 by means of an indirect lever mechanism takes place.
  • these have on their underside a spring 52, which rests in a corresponding groove 53 in the base plate 21 of the adjusting mechanism 18, cf.
  • stop elements 17, 17 ' are in the "extended" position corresponding to a horizontal basic position of the seat carrier 3, then the rear sides 27 of the stop elements 17, 17' abut against the front sides 54 of the wedge elements 29, 30, cf.
  • the seat support 3 is loaded, for example, by the fact that a user sits on the chair and the seat loaded in the direction of the front seat end 12 without supporting itself on the backrest, act on the stop elements 17, 17 'forces in the longitudinal direction 6, the jamming of the wedge elements 29, 30 between the backs 27 of the stop elements 17, 17 'on the one hand and the opposite flanks 55 of the guide channel 33.
  • the steel spring 36 thus moves into its starting position shown in FIG brought back so is the attached to the actuating slide 39 L-leg 56 of the steel spring 36 already in the in Fig. 5 position, while the other L-leg 57 remains with its leg end 42 still in the position shown in Fig. 6 position.
  • the two L-legs 56, 57 include an obtuse angle between them in this situation.
  • the steel spring 36 is biased.

Abstract

L'invention concerne un dispositif permettant de régler l'inclinaison d'assise d'une chaise, en particulier d'une chaise de bureau. L'objectif de cette invention est de fournir un dispositif de réglage d'inclinaison d'assise permettant de régler l'inclinaison d'assise de manière particulièrement sûre et fiable. A cet effet, un dispositif selon l'invention comprend un support de base (2), un support d'assise (3), relié au support de base (2) par une articulation (13), ainsi qu'un mécanisme de réglage (18), de sorte qu'un mouvement de pivotement facultatif du support d'assise (3) vers l'avant au-delà d'une position normale sensiblement horizontale est possible.
PCT/EP2006/003068 2005-04-13 2006-04-05 Dispositif permettant de regler l'inclinaison d'assise d'une chaise WO2006108536A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06724023.4A EP1868467B1 (fr) 2005-04-13 2006-04-05 Dispositif permettant de regler l'inclinaison d'assise d'une chaise
JP2008505773A JP2008535592A (ja) 2005-04-13 2006-04-05 椅子の座部傾斜調整のための装置
US11/872,117 US20080252125A1 (en) 2005-04-13 2007-10-15 Device for Seat Tilt Adjustment of a Chair

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005017143A DE102005017143B4 (de) 2005-04-13 2005-04-13 Vorrichtung zur Sitzneigeverstellung eines Stuhles
DE102005017143.5 2005-04-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/872,117 Continuation US20080252125A1 (en) 2005-04-13 2007-10-15 Device for Seat Tilt Adjustment of a Chair

Publications (1)

Publication Number Publication Date
WO2006108536A1 true WO2006108536A1 (fr) 2006-10-19

Family

ID=36570639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/003068 WO2006108536A1 (fr) 2005-04-13 2006-04-05 Dispositif permettant de regler l'inclinaison d'assise d'une chaise

Country Status (6)

Country Link
US (1) US20080252125A1 (fr)
EP (1) EP1868467B1 (fr)
JP (1) JP2008535592A (fr)
CN (1) CN101160076A (fr)
DE (1) DE102005017143B4 (fr)
WO (1) WO2006108536A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022856A1 (fr) * 2009-08-26 2011-03-03 Vitra Patente Ag Mécanisme pour une chaise

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201014953D0 (en) * 2010-09-08 2010-10-20 Birkbeck Hilary R Slide chair action
CN103479112A (zh) * 2013-09-24 2014-01-01 浙江永艺家具股份有限公司 一种转椅底盘
JP6307042B2 (ja) * 2015-05-11 2018-04-04 コクヨ株式会社 椅子
JP6287948B2 (ja) * 2015-05-11 2018-03-07 コクヨ株式会社 椅子
JP6358166B2 (ja) * 2015-05-11 2018-07-18 コクヨ株式会社 椅子
CN209018141U (zh) * 2018-05-11 2019-06-25 杭州中泰实业集团有限公司 一种改变扭簧角度的螺旋调节转椅托盘
PL3701839T3 (pl) * 2019-02-27 2023-03-13 L&P Property Management Company Mechanizm sterowania krzesłem

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653806A (en) * 1984-01-14 1987-03-31 Mauser-Waldeck Ag Pivotally and slidably connected cantilevered swivel seat
EP0568233A1 (fr) * 1992-04-20 1993-11-03 Steelcase Inc. Dispositif de réglage actionné par câble
DE19607136A1 (de) * 1995-02-28 1996-08-29 Eckhard Hansen Stuhl
US5871258A (en) * 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
EP0956793A2 (fr) * 1998-04-27 1999-11-17 Donati S.p.A. Support basculant pour chaise
DE10125994A1 (de) * 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhles

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US4429917A (en) * 1981-04-29 1984-02-07 Hauserman Inc. Int. Furniture & Textile Division Chair
JPS59207112A (ja) * 1983-05-10 1984-11-24 メ−コ−工業株式会社 椅子
DE3930983C2 (de) * 1989-09-16 1993-09-30 Rolf Voelkle Sitzmöbel mit neigungsverstellbarer Sitzfläche
DE69414878T2 (de) * 1993-11-01 1999-06-24 Labofa As Bürostuhl mit synchroner verstellung von sitz und rückenlehne
JPH09322837A (ja) * 1996-06-06 1997-12-16 Takano Co Ltd 椅子の座板スライド装置
GB9802447D0 (en) * 1998-02-04 1998-04-01 Unit Press Limited Mechanism for chair
AUPR869101A0 (en) * 2001-11-06 2001-11-29 Frisina, Matthew Stephen Aquatic seat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653806A (en) * 1984-01-14 1987-03-31 Mauser-Waldeck Ag Pivotally and slidably connected cantilevered swivel seat
EP0568233A1 (fr) * 1992-04-20 1993-11-03 Steelcase Inc. Dispositif de réglage actionné par câble
DE19607136A1 (de) * 1995-02-28 1996-08-29 Eckhard Hansen Stuhl
US5871258A (en) * 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
EP0956793A2 (fr) * 1998-04-27 1999-11-17 Donati S.p.A. Support basculant pour chaise
DE10125994A1 (de) * 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022856A1 (fr) * 2009-08-26 2011-03-03 Vitra Patente Ag Mécanisme pour une chaise
US8899680B2 (en) 2009-08-26 2014-12-02 Vitra Patente Ag Mechanism for a chair

Also Published As

Publication number Publication date
DE102005017143B4 (de) 2007-06-21
DE102005017143A1 (de) 2006-10-19
JP2008535592A (ja) 2008-09-04
EP1868467B1 (fr) 2014-12-17
EP1868467A1 (fr) 2007-12-26
CN101160076A (zh) 2008-04-09
US20080252125A1 (en) 2008-10-16

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