EP1127522B1 - Federeinheit zur Gewichtseinstellung eines Stuhls - Google Patents
Federeinheit zur Gewichtseinstellung eines Stuhls Download PDFInfo
- Publication number
- EP1127522B1 EP1127522B1 EP01104641A EP01104641A EP1127522B1 EP 1127522 B1 EP1127522 B1 EP 1127522B1 EP 01104641 A EP01104641 A EP 01104641A EP 01104641 A EP01104641 A EP 01104641A EP 1127522 B1 EP1127522 B1 EP 1127522B1
- 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.)
- Expired - Lifetime
Links
Images
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—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
- A47C7/446—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base 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—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 spring unit for adjusting the weight of a chair, in particular an office chair, with a first spring element and with a number of other spring elements.
- 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 biased 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 biased state.
- an undesirably high expenditure of force a large number of rotations 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 outset 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 every other 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 hole 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.
- each additional spring element a spiral spring coaxially surrounding the gas spring. It is convenient a first spiral spring surrounding the gas spring and a surrounding spring 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 advantages achieved by the invention are in particular that the use of a spring unit with expediently a gas spring as the first Spring element for basic weight adjustment and with a number of additional spring elements, which can be switched on individually or in combination, one gradual adjustment of the counterforce of the spring unit and thus a gradual Weight adjustment of a chair in a particularly simple way is possible.
- 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 to 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. stellate 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.
- 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 spiral springs 27 and 28.
- the piston rod 15 is the gas spring 12 guided at the end to a cross arm 30, on its transverse 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 stamp 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 aligned 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)
Description
- Fig. 1
- in einer Seitenansicht einen Bürostuhl mit einer erfindungsgemäßen Federeinheit zur Gewichtseinstellung als Teil einer Synchronmechanik eines Bürostuhls,
- Fig. 2a-d
- eine erste Variante der Federeinheit mit einer ersten Gasfeder, der eine zweite, eine dritte bzw. eine vierte Gasfeder zugeschaltet ist, und
- Fig. 3a-e
- eine zweite Ausführungsform der Federeinheit mit einer zentralen Gasfeder und zwei diese koaxial umgebenden Spiralfedern, von denen die außenliegende, die innenliegende, beide bzw. keine Spiralfeder zugeschaltet ist.
- 1
- Stuhl
- 2
- Rückenlehne
- 3
- Sitz/-fläche
- 4
- Lehnenlenker
- 5
- Drehgestell
- 6
- Drehgelenk
- 7
- Sitzträger
- 8
- Drehsäule
- 9
- Gestellfuß
- 10
- Rolle
- 11
- Federeinheit
- 12
- Gasfeder
- 13
- Halteelement
- 14
- Druckgehäuse
- 15
- Kolbenstange
- 16
- Verstellkulisse
- 17-19
- Federelement/Gasfeder
- 20-22
- Kolbenstange
- 23-25
- Durchgangsöffnung
- 26
- Federlängsachse
- 27,28
- Federelement/Spiralfeder
- 29
- Positionier-/Distanzhülse
- 30
- Kreuzarm
- 30a,b
- Schenkelarm
- 31
- Verstellstempel
- 31a,b
- Stempelarm
- 32a,b
- Hebelarm
- 33
- Langloch
Claims (10)
- Federeinheit zur Gewichtseinstellung eines Stuhls (1), insbesondere eines Bürostuhls, mit einem ersten Federelement (12) und mit einer Anzahl von weiteren Federelementen (17,18,19;27,28),
gekennzeichnet durch eine Verstellkulisse (16) oder einen Verstellstempel (31)
zum selektiven Zuschalten einer Anzahl der weiteren Federelemente (17,18,19;27,28) einzeln oder in Kombination zum ersten Federelement (12). - Federeinheit nach Anspruch 1,
dadurch gekennzeichnet, dass das erste Federelement (12) eine Gasfeder ist. - Federeinheit nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass jedes weitere Federelement (17,18,19) eine Gasfeder ist. - Federeinheit nach Anspruch 3,
dadurch gekennzeichnet, dass die Gasfedern (17,18,19) mit deren gehäuseseitigen Federenden (17a,18a,19a) an einem gemeinsamen Halteelement (13) gehalten sind, und dass deren kolbenseitigen Federenden (17b,18b,19b) mit der Verstellkulisse (16) einzeln in Wirkeingriff bringbar sind. - Federeinheit nach Anspruch 2,
dadurch gekennzeichnet, dass jedes weitere Federelement (27,28) eine die Gasfeder (12) koaxial umgebende Spiralfeder ist. - Federeinheit nach Anspruch 5,
dadurch gekennzeichnet, dass eine die Gasfeder (12) umgebende erste Spiralfeder (27) und eine diese umgebende zweite Spiralfeder (28) vorgesehen sind, wobei die innenliegende erste Spiralfeder (27) schwächer ist als die außenliegende zweite Spiralfeder (28). - Federeinheit nach Anspruch 6,
dadurch gekennzeichnet, dass zwischen der innenliegenden ersten Spiralfeder (27) und der außenliegenden zweiten Spiralfeder (28) eine Hülse (29) vorgesehen ist. - Federeinheit nach einem der Ansprüche 5 bis 7,
dadurch gekennzeichnet, dass die Gasfeder (12) kolbenseitig an einen Kreuzarm (30) geführt ist, an dem zwei quer zur Federlängsachse (26) synchron verschiebbare und dabei in eine Wirkposition mit jeder Spiralfeder (27,28) bringbare Stempelarme (31a,31b) angeordnet sind. - Stuhl mit einer Federeinheit (11) nach einem der Ansprüche 1 bis 8.
- Stuhl nach Anspruch 9, bei dem die Federeinheit (11) zwischen einem mit einer Drehsäule (8) verbundenen Sitzträger (7) und dem Sitz (3) oder einem zumindest annähernd parallel zu diesem verlaufenden Lehnenlenker (4) einer Rückenlehne (2) angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20003313U DE20003313U1 (de) | 2000-02-23 | 2000-02-23 | Federeinheit zur Gewichtseinstellung eines Stuhls |
DE10008453A DE10008453C2 (de) | 2000-02-23 | 2000-02-23 | Federeinheit zur Gewichtseinstellung eines Stuhls |
DE10008453 | 2000-02-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1127522A2 EP1127522A2 (de) | 2001-08-29 |
EP1127522A3 EP1127522A3 (de) | 2002-02-06 |
EP1127522B1 true EP1127522B1 (de) | 2004-12-22 |
Family
ID=44280722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01104641A Expired - Lifetime EP1127522B1 (de) | 2000-02-23 | 2001-02-23 | Federeinheit zur Gewichtseinstellung eines Stuhls |
Country Status (4)
Country | Link |
---|---|
US (1) | US6659555B1 (de) |
EP (1) | EP1127522B1 (de) |
AT (1) | ATE285188T1 (de) |
DE (2) | DE10008453C2 (de) |
Families Citing this family (10)
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 |
DE10241562A1 (de) | 2002-09-07 | 2004-03-18 | Bock-1 Gmbh & Co. | Synchronmechanik für Bürostühle |
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 |
Family Cites Families (11)
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 |
DE3834614A1 (de) * | 1988-10-11 | 1990-04-12 | Hartmut S Engel | Funktionssitzmoebel |
DE4237495A1 (de) * | 1992-11-06 | 1994-05-11 | Stabilus Gmbh | Blockierbare Gasfeder |
DE29819143U1 (de) | 1998-10-21 | 1999-02-11 | Drabert GmbH, 32423 Minden | Bürostuhl mit einer nachführbaren Rückenlehne |
-
2000
- 2000-02-23 DE DE10008453A patent/DE10008453C2/de not_active Expired - Fee Related
- 2000-02-23 DE DE20003313U patent/DE20003313U1/de not_active Expired - Lifetime
- 2000-08-03 US US09/631,920 patent/US6659555B1/en not_active Expired - Fee Related
-
2001
- 2001-02-23 AT AT01104641T patent/ATE285188T1/de not_active IP Right Cessation
- 2001-02-23 EP EP01104641A patent/EP1127522B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6659555B1 (en) | 2003-12-09 |
DE10008453C2 (de) | 2002-07-18 |
DE10008453A1 (de) | 2001-09-13 |
EP1127522A2 (de) | 2001-08-29 |
EP1127522A3 (de) | 2002-02-06 |
DE20003313U1 (de) | 2001-07-05 |
ATE285188T1 (de) | 2005-01-15 |
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