EP1127522A2 - Bloc-ressort d'une chaise pour l'adaptation au poids - Google Patents

Bloc-ressort d'une chaise pour l'adaptation au poids Download PDF

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Publication number
EP1127522A2
EP1127522A2 EP01104641A EP01104641A EP1127522A2 EP 1127522 A2 EP1127522 A2 EP 1127522A2 EP 01104641 A EP01104641 A EP 01104641A EP 01104641 A EP01104641 A EP 01104641A EP 1127522 A2 EP1127522 A2 EP 1127522A2
Authority
EP
European Patent Office
Prior art keywords
spring
gas
spiral
spring unit
chair
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
EP01104641A
Other languages
German (de)
English (en)
Other versions
EP1127522A3 (fr
EP1127522B1 (fr
Inventor
Rolf Scholz
Frank Weisser
Armin Sander
Martin Potrykus
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.)
Koenig and Neurath AG
Original Assignee
Koenig and Neurath AG
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 Koenig and Neurath AG filed Critical Koenig and Neurath AG
Publication of EP1127522A2 publication Critical patent/EP1127522A2/fr
Publication of EP1127522A3 publication Critical patent/EP1127522A3/fr
Application granted granted Critical
Publication of EP1127522B1 publication Critical patent/EP1127522B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted frame
    • A47C7/446—Supports for the head or the back for the back with elastically-mounted frame with fluid springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons for 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted frame
    • A47C7/443—Supports for the head or the back for the back with elastically-mounted frame with coil springs

Definitions

  • the invention relates to a spring unit for adjusting the weight of a chair, in particular an office chair, with a first spring element and with at least another spring element.
  • the setting is under Weight setting the counterforce to be applied by the spring unit to the weight of the understood the person using the chair.
  • the bias of the effective as a compression spring Coil spring manually by means of a coupled with a sleeve-like driver Rotary knob set is held in the prestressed state.
  • the coil spring serving as a compression spring often to an undesirably high degree and / or over an impermissibly long period Period is held in the prestressed state.
  • an undesirably high expenditure of force a large number of revolutions of the rotary knob for weight adjustment is required, so that when in the Usually poor posture due to the often poor accessibility the knob is very tedious.
  • the invention is therefore based on the object of a spring unit at the beginning Specify the type mentioned, avoiding the disadvantages mentioned particularly suitable weight or force setting of a chair over a force range as large as possible.
  • the spring unit is intended in particular for an easy to handle weight adjustment of a z. B. with a synchronous mechanism for the inclination adjustment of an office chair provided with a backrest-seat unit be suitable.
  • the spring unit are the first spring element, which is preferably a gas spring is, a number of further spring elements individually or in stages in combination switchable. This is depending on the set weight - and therefore dependent from the counterforce to be applied by the spring unit to the weight force effective for gas spring at least one of the other spring elements.
  • Both the gas spring and the connected spring elements are the first when loaded, d. H. if a pressure or weight force on the spring unit is exercised, effective. In other words: when the spring unit is not loaded in particular none of the connected spring elements are biased.
  • both the first spring element as well as the or each additional spring element a gas spring.
  • the gas springs are common on the one hand with their spring ends on the housing side held.
  • the piston-side spring ends are then expediently individual or can be brought into active engagement in combination with an adjustment link.
  • the Gas springs of the spring unit can be in a row as well as in a circle be arranged side by side.
  • the adjustment link can be a perforated slide or be designed as a perforated, rotatable disc. Both the pusher as well as the perforated disc can be provided with a locking mechanism his. The slide or the disc locks in different positions such that the inactivated gas springs with their piston ends slide through the holes aligned with them when on the spring unit a weight acts.
  • the or each additional spring element a spiral spring coaxially surrounding the gas spring. It is convenient a first spiral spring surrounding the gas spring and one surrounding it second coil spring is provided, between which a spacer sleeve is arranged can be.
  • the inner first coil spring is preferably weaker than the outer second coil spring.
  • the spring unit is particularly suitable for adjusting the weight of an office chair with a synchronous mechanism to adjust the inclination of the backrest or this in one unit with the seat.
  • the spring unit is expedient between a seat support connected to a rotating column and the seat arranged.
  • the spring unit can also be between the seat support and an at least approximately parallel to the seat or the seat surface Backrest links of the backrest can be arranged.
  • Fig. 1 shows a chair 1 with a so-called synchronous mechanism for tilt adjustment a backrest 2, which has a below a seat or a seat 3 at least approximately parallel to this backrest link 4 is connected to a bogie 5.
  • the backrest link 4 approximately in the area of the front edge of the seat 3 via a swivel 6 with a Seat support 7 articulated, which in turn with a rotating column 8 of the bogie 5 is firmly connected.
  • the bogie 5 has e.g. star-shaped Frame base 9 with rollers 10 attached at the end.
  • the spring unit 11 provided is on the housing side on the seat support 7 and on the piston side held on the backrest arm 4 rotatably or pivotally.
  • FIGS 2a to 2d show a preferred embodiment of the spring unit 11 in different weight or counterforce settings.
  • the spring unit 11 comprises a gas spring 12, with its housing-side holding or spring end 12a is attached to a holding element 13. Within a pressure housing 14 the gas spring 12 is in a manner not shown with the end a piston connected piston rod 15 axially movable. The gas spring 12 is guided with its piston-side spring end 12b into an adjusting link 16 and biased by this in the position shown.
  • Adjacent to this gas spring 12 are three further spring elements 17, 18, 19 in Form in turn each arranged a gas spring.
  • the other gas springs 17 to 19 are also at their housing-side spring ends 17a, 18a and 19a attached to the holding member 13.
  • the further spring elements 17 to 19 are also with their piston-side spring ends 17b, 18b and 19b to the adjusting link 16 guided.
  • the other spring elements 17 to 19 are not connected to the gas spring 12 by the fact that their piston rods 20, 21, 22 are passed through through holes or openings 23, 24 and 25 provided in the adjustment link 16.
  • the further spring elements 17 to 19 are therefore not preloaded.
  • the basic setting corresponds, for example, to a weight of 50 kg of a person occupying the chair 1, so that the counterforce F G of the spring unit 11 to be applied only by the gas spring 12 and counteracts the weight of the person in this example is 50 kN.
  • the further spring elements 17 can be used for weight adjustment or adjustment to 19 of the gas spring 12 can be switched on individually or in combination.
  • the pistons 20, 22 of the spring elements 17 and 19 are unblocked through the corresponding through openings 23 and 25 of the adjustment link passed through.
  • the spring elements 17 to 19 are connected to the gas spring 12 individually or in a corresponding combination. A continuous and thus inevitably time-consuming and complex weight adjustment is thus avoided in a simple manner.
  • FIGS. 3a to 3e show a further embodiment of the spring unit 11, again with a central gas spring 12 for the basic setting of the counterforce F G, and with two further spring elements. These are designed in the form of two spiral springs 27 and 28 coaxially surrounding the gas spring 12, the inner first spiral spring 27 being weaker than the outer second spiral spring 28. While the inner spiral spring 27 is guided by the pressure housing 14 of the gas spring 12, the outer one Spiral spring 28 guided by a positioning and spacing sleeve 29 provided between the two spiral springs 27 and 28. The sleeve 29 also serves as a spacer between the two coil springs 27 and 28.
  • the piston rod 15 is the gas spring 12 guided at the end to a cross arm 30, on its cross to the longitudinal axis of the spring 26 extending leg arms 30a and 30b each have a stamp arm 31a and 31b of an adjusting plunger 31 are arranged displaceably.
  • stamp arms 31a and 31b articulated lever arms 32a and 32b are at the end in a common this elongated hole 33 that provided in the cross arm 30 is.
  • the punch arms 31a and 31b take one with the outer coil spring 28 aligned operative position (Fig. 3a and 3b), one aligned with the inner coil spring Active position (Fig. 3c), one in alignment with both coil springs 27 and 28 Active position (Fig. 3d) or one laterally protruding with both spiral springs 27 and 28 Active position (Fig. 3e).

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP01104641A 2000-02-23 2001-02-23 Bloc-ressort d'une chaise pour l'adaptation au poids Expired - Lifetime EP1127522B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10008453A DE10008453C2 (de) 2000-02-23 2000-02-23 Federeinheit zur Gewichtseinstellung eines Stuhls
DE20003313U DE20003313U1 (de) 2000-02-23 2000-02-23 Federeinheit zur Gewichtseinstellung eines Stuhls
DE10008453 2000-02-23

Publications (3)

Publication Number Publication Date
EP1127522A2 true EP1127522A2 (fr) 2001-08-29
EP1127522A3 EP1127522A3 (fr) 2002-02-06
EP1127522B1 EP1127522B1 (fr) 2004-12-22

Family

ID=44280722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104641A Expired - Lifetime EP1127522B1 (fr) 2000-02-23 2001-02-23 Bloc-ressort d'une chaise pour l'adaptation au poids

Country Status (4)

Country Link
US (1) US6659555B1 (fr)
EP (1) EP1127522B1 (fr)
AT (1) ATE285188T1 (fr)
DE (2) DE10008453C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1396213A1 (fr) * 2002-09-07 2004-03-10 Bock-1 GmbH & Co. Mécanisme synchronisé pour chaises de bureau

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4137536B2 (ja) * 2002-07-03 2008-08-20 コクヨ株式会社 椅子
DE10357165A1 (de) 2003-12-06 2005-06-30 Bock-1 Gmbh & Co. Synchronmechanik für Bürostühle
US20070090671A1 (en) * 2005-10-06 2007-04-26 Rbm A/S; Weight regulator for a chair
US9777111B2 (en) * 2005-10-20 2017-10-03 Grupo Petrotemex, S.A. De C.V. PET polymer with improved properties
DE202005017987U1 (de) * 2005-11-17 2006-01-12 Kintec-Solution Gmbh Sessel
ITMI20060808A1 (it) * 2006-04-21 2007-10-22 Donati Spa Dispositivo per regolare la forza elastica esercitata da una pluralita' di molle
GB0609315D0 (en) * 2006-05-11 2006-06-21 Technicon Internat Man Service Improved seat
CN106455821A (zh) 2014-04-17 2017-02-22 Hni技术公司 椅子和椅子控制组件、系统和方法
IT201700049605A1 (it) * 2017-05-08 2018-11-08 L I M A S N C Di Riccardo Ed Elisa Beccegato Meccanismo di controllo della forza di inclinazione di uno schienale di una sedia

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834614A1 (de) 1988-10-11 1990-04-12 Hartmut S Engel Funktionssitzmoebel
DE4237495A1 (de) 1992-11-06 1994-05-11 Stabilus Gmbh Blockierbare Gasfeder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2733322C3 (de) * 1977-07-23 1980-08-07 Protoned B.V., Amsterdam Arbeitsstuhl
DE3537203A1 (de) 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Arbeitsstuhl mit neigungsmechanik von sitzschale und rueckenlehne
DE3521488A1 (de) * 1985-06-14 1986-12-18 August Fröscher GmbH & Co KG, 7141 Steinheim Arbeitsstuhl
SE453253B (sv) * 1985-06-24 1988-01-25 Lars Ake Holstensson Beslag for serskilt kontorsstol
DE3700447A1 (de) * 1987-01-09 1988-07-21 Vogt Bueromoebel Sitzmoebel
AT386517B (de) * 1987-02-10 1988-09-12 Zuend & Co Ag K Stuhl, insbesondere arbeitsstuhl
DE3727784A1 (de) * 1987-08-20 1989-03-02 Kloeber Gmbh & Co Arbeitsstuhl mit verschwenkbarer sitzschale
US5026117A (en) * 1987-11-10 1991-06-25 Steelcase Inc. Controller for seating and the like
DE19849521A1 (de) 1998-10-21 2000-04-27 Drabert Gmbh Bürostuhl mit nachführbarer Rückenlehne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834614A1 (de) 1988-10-11 1990-04-12 Hartmut S Engel Funktionssitzmoebel
DE4237495A1 (de) 1992-11-06 1994-05-11 Stabilus Gmbh Blockierbare Gasfeder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1396213A1 (fr) * 2002-09-07 2004-03-10 Bock-1 GmbH & Co. Mécanisme synchronisé pour chaises de bureau
US6796611B2 (en) 2002-09-07 2004-09-28 Bock-1 Gmbh & Co. Synchronizing mechanism for office chairs

Also Published As

Publication number Publication date
DE10008453A1 (de) 2001-09-13
ATE285188T1 (de) 2005-01-15
US6659555B1 (en) 2003-12-09
DE10008453C2 (de) 2002-07-18
EP1127522A3 (fr) 2002-02-06
DE20003313U1 (de) 2001-07-05
EP1127522B1 (fr) 2004-12-22

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