EP2040582B1 - Rückenlehne für den Sitz eines Stuhls oder Sessels und mit einer derartigen Rückenlehne ausgerüstetes Sitzmöbel - Google Patents

Rückenlehne für den Sitz eines Stuhls oder Sessels und mit einer derartigen Rückenlehne ausgerüstetes Sitzmöbel Download PDF

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Publication number
EP2040582B1
EP2040582B1 EP07722472A EP07722472A EP2040582B1 EP 2040582 B1 EP2040582 B1 EP 2040582B1 EP 07722472 A EP07722472 A EP 07722472A EP 07722472 A EP07722472 A EP 07722472A EP 2040582 B1 EP2040582 B1 EP 2040582B1
Authority
EP
European Patent Office
Prior art keywords
backrest according
seat
support
support members
springs
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.)
Not-in-force
Application number
EP07722472A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2040582A1 (de
Inventor
Martin Ballendat
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.)
Rohde and Grahl GmbH
Original Assignee
Rohde and Grahl GmbH
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 Rohde and Grahl GmbH filed Critical Rohde and Grahl GmbH
Publication of EP2040582A1 publication Critical patent/EP2040582A1/de
Application granted granted Critical
Publication of EP2040582B1 publication Critical patent/EP2040582B1/de
Not-in-force 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
    • 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
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
    • 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
    • A47C7/402—Support for the head or the back for the back adjustable in height
    • 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
    • A47C7/405—Support for the head or the back for the back with double backrests
    • 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
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • 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 backrest for the seat of a chair or armchair with two laterally juxtaposed, resiliently held backrests, each of which is attached to a separate, substantially vertically oriented first support member of a substantially L-shaped support, whose second support member in a can be mounted below the seat attachable seat base against spring force about a horizontal axis pivotally, each support member forms the first leg of a substantially L-shaped support, the second leg is pivotable in a mountable under the seat seat base against spring force about a horizontal axis.
  • One in the KR 2005 0023593 A described backrest may, depending on the movements or sitting positions of a seated person to a certain extent follow the back movements.
  • rotational movements of the upper body of a seated person occurs in the known backrest
  • the invention has for its object to design a backrest so that even with rotational movements of the body about a vertical axis inevitably a uniform stepless backrest is maintained.
  • a backrest according to the preamble of claim 1 is characterized by a pivotally mounted in or on the seat base, aligned in the rest position substantially perpendicular to the carriers guide rod, is articulated at the end in each case one of the two carriers, so that when moving the one back support forward or backward, the other back support is displaced in each case in the opposite direction.
  • the guide rod is preferably articulated with their ends to the second carrier parts of the carrier and mounted centrally between these Anleakticianen articulated to the seat or the seat base.
  • FIG. 7 shows an isometric view of an armchair, consisting of a equipped with casters foot 1.1, a supported by the base column column 1, a seat 100 and a backrest 3 with two laterally spaced back braces 3.1, which are attached to L-shaped straps 4
  • Each backrest 3.1 is attached to a support member 7 which is lockable along the associated first support member 4.1 in different height positions
  • Each support member 7 contains Rubber elements, such that the individual back support is movable relative to the first support part 4.1
  • the first support parts 4.1 are interconnected by an elastically deformable cross brace 9, the spring stiffness is designed so that the free mobility of the individual R back support is retained relative to the other back support to a limited extent.
  • the second support members 4.2 are pivotally mounted about a horizontal pivot axis 5 by means of a support unit 2.
  • the second carrier parts 4.2 of the carrier 4 are designed as two-armed lever, acting on the free lever ends 4.3 a substantially vertically aligned spring element 6, the force acting on the carrier force is variable.
  • this spring element 6 may be a tension spring, a pneumatic or hydraulic spring element or the like.
  • latching openings 8 illustrate that the support members 7 are height-adjustable attached to the first support members 4.1.
  • the back supports 3.1 are connected approximately at their center by means of an elastically deformable cross bar 3.2, whose strength is designed so that the back supports 3.1 retain their function as individual supports, the free mobility of a back support relative to the other back support is retained to a limited extent.
  • the two back braces 3.1 also each alone resiliently attached to the first support parts 4.1 of the carrier 4.
  • the support members 7 are designed so that the upper ends of the first support members 4.1 project upwardly beyond the support members 7.
  • the free ends of the first support members 4.1 are interconnected by an elastically deformable cross member 9.
  • FIG. 6 which forms no part of the present invention is mounted in or on the support unit 2 provided with opposing threads horizontal axis 20 on which the first support members 4.2 of the carrier 4 are pivotally mounted.
  • Each second carrier parts 4.2 is designed as a two-armed lever, the free lever end 4.4 is bevelled upwards, on which a substantially horizontally oriented tension spring 22 engages.
  • the tension springs 22 are attached to change the force acting on the carrier force with their ends on a relative to the horizontal axis at different distances detectable adjusting member 23, for example, carries a nut 24, in which a rotatable by means of a knurled wheel 26 threaded pin 25 engages.
  • Each second support parts 4.2 carries in the region of its bearing on the horizontal axis 20 a threaded bushing 27, such that by rotating the horizontal axis 20 due to the counter-threaded off this horizontal axis, the two second support members 4.2 can be laterally adjusted relative to each other, whereby the distance between the back supports 3.1 in accordance with FIGS. 1 and 3 can be adjusted.
  • FIGS. 8 and 9 show a detail of a fixed at the upper end of the column stand 1 seat chassis 38 to which the two supports 4 are pivotally mounted in the region of the free ends of the second support member 4.2 about the pivot axis 39 shown schematically.
  • a substantially box-shaped seat base 40 is fixed for example by means of screws 41, which are guided in the seat frame 40 brought Langlöchen 42, such that the seat base 40 relative to the seat frame 38 is displaceable forward and backward.
  • a core idea of the teaching according to the invention consists essentially in coupling the two backrests 3.1 together so that when the seat is displaced on the chair (chair) a person displacing the one backrest, eg backwards, inevitably moves the other backrest Has. Due to the resilient suspension of the back supports on the straps 4, the two back braces 3.1 are able to assume such a position that a substantially uniform, continuous backrest is created when the user of the chair or armchair when leaning back more against the one in FIG. 10 Backrest 3.1 shown on the right is leaning against or pushing against it more strongly than against the other backrest 3.1.
  • This positive coupling of the two back supports 3.1 to oppositely directed movements is effected by means of a in the rest position substantially perpendicular to the carriers 4 oriented guide rod 43 which is mounted in such or in the seat base 40 and connected to the second support members 4.2, that at a backward movement of a back support 3.1, the other back support in the opposite direction, ie after the strigaben, is.
  • the deflection angle of the guide rod 43 is shown oversubscribed with respect to the central position for clarification of the principle; In reality, the deflection angle is only very small, so that when pivoting the ends of the guide rod 43 perform only very small movements, which are in the range of tenths of a millimeter and are thus absorbed by the tolerance of the construction.
  • the ends of the guide rod 43 are articulated to the respective second support parts 4.2, for example by means of ball joints 44 schematically illustrated in FIG. 8b, which are preferably mounted in elastically deformable sleeves 44.1.
  • the guide rod 43 is also centrally between its articulation points on the second support parts 4.2 also preferably by means of in FIG. 9a shown Kugslgelenks 45 in or on a longitudinal member 40.2 of the seat base 40 articulated.
  • the second support members 4.2 are supported by means mounted in the seat base 40 helical compression springs 46 such that the two back support 3.1 in the unloaded rest position the have the same distance from the seat base 40 and the guide rod 43 occupies a rest or middle position.
  • the second support members 4.2 are provided with upwardly directed lugs 47 on which the ends of the guide rod 43 are articulated.
  • To the lugs 47 include pressure plates 48 which are supported by means of the frame 40.1 of the box-shaped seat base 40 guided plunger 49 on the helical compression springs 46 which are aligned perpendicular to the pivot axis 39 housed in the seat base 40.
  • the helical compression springs 46 are supported on longitudinally displaceable blocks 50, which in turn are supported on cams 52 of a rotatable by means of the handle 53 camshaft 51 to change the biasing force of the spring 46 by turning the cam 52 can.
  • the guide rod 43 is guided in the frame 40.1 of the seat base 40 in arcuate guide grooves 54 whose ideal axes are parallel to the pivot axis 39 of the carrier 4 and are curved relative to the front of the chair from top to back and down.
  • the Fünrungsnuten 54 allow the tilting or pivoting movement of the guide rod 43 in the region of the ball joint 45, such that upon pivoting of the second support member 4.2 to the rear of this support member is also pivoted down at the same time opposite movements of the opposite second support member 4.2.
  • FIG. 8 shows the two carriers 4 in a central, substantially parallel position when the two back braces 3.1 are either unloaded or evenly loaded.
  • the guide rod 43 diester backward movement which due to the articulated support of the guide rod 43 in or on the side member 40.2 of the entire seat frame 40 pulled back on the one hand and on the other hand at the same time is pivoted downwards or lowered in its rear region, in accordance with one in the DE 299 08 599 U1 described seat storage with synchronous mechanism, which, as is known, is not the subject of the present invention.
  • a synchronous mechanism is used when pivoting the backrest to or to pivot back and the seat according to a predetermined angular ratio.
  • the rearward movement of the seat base 40 is against the force of compression springs 60 which are supported between a support plate 61 forming part of the seat chassis 38 and thus stationary, and a support surface 62 forming part of the movable seat base 40.
  • FIGS. 4 and 5 show how the support member 7 is attached to a back support to allow pivotal movements of this back support 3.1 relative to the support member 7 both about a vertical axis and about a horizontal axis:
  • a box-shaped body 10 which is open at the top and at the bottom is provided at its end facing the support member 7 with two preferably triangular wall sections 10.1, which have opposing bearing openings 10.11.
  • a horizontally oriented bushing 11 is fixed, so that after passing through an axle pin 12 by the brought with the bearing bush 11 in the alignment position bearing openings 10.11, the body 10 is pivotally attached to the support member 7.
  • a rubber buffer 14 which is provided with a corresponding shape of the bearing bush 11 recess 14.1.
  • the spring stiffness of the rubber buffer 14 is designed so that a controlled pivotal movement of the body 10 about the axle pin 12 is possible.
  • the body 10 is provided on its side facing away from the support member 7 side with a top and bottom bounded by wall sections 10.2 opening.
  • the wall sections 10.2 are provided with bearing openings 10.21.
  • a fixable at the back of each back support 3.1 fastener 13 has a vertically oriented bearing bush 13.1, which carries a radially outwardly projecting partition 13.2. When the bearing bush 13.1 is brought into alignment with the bearing openings 10.21, an axle pin 14.2 can be inserted through these bearing openings 10.21 and the bearing bush 13.1, whereby the body 10 is pivotally mounted about a vertical axis on the fastening element 13.
  • the partition 13.2 bounded within the nozzle-shaped body 10 has two receiving spaces for spring elements 15, preferably zylinderische rubber buffer whose Dimensions and spring stiffness are theniegt so that a limited relative movement between the fastener 13 and the body 10 about the vertical axis defined by the axle pin 14.2 is possible.
EP07722472A 2006-06-29 2007-05-26 Rückenlehne für den Sitz eines Stuhls oder Sessels und mit einer derartigen Rückenlehne ausgerüstetes Sitzmöbel Not-in-force EP2040582B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006030018A DE102006030018A1 (de) 2006-06-29 2006-06-29 Rückenlehne für einen Stuhl oder Sessel und mit einer derartigen Rückenlehne ausgerüsteter Stuhl oder Sessel
DE202007007524U DE202007007524U1 (de) 2006-06-29 2007-05-26 Rückenlehne für einen Stuhl oder Sessel und mit einer derartigen Rückenlehne ausgerüsteter Stuhl oder Sessel
PCT/DE2007/000954 WO2008000207A1 (de) 2006-06-29 2007-05-26 Rückenlehne für einen stuhl oder sessel und mit einer derartigen rückenlehne ausgerüsteter stuhl oder sessel

Publications (2)

Publication Number Publication Date
EP2040582A1 EP2040582A1 (de) 2009-04-01
EP2040582B1 true EP2040582B1 (de) 2011-07-20

Family

ID=41078738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722472A Not-in-force EP2040582B1 (de) 2006-06-29 2007-05-26 Rückenlehne für den Sitz eines Stuhls oder Sessels und mit einer derartigen Rückenlehne ausgerüstetes Sitzmöbel

Country Status (12)

Country Link
US (1) US20100301652A1 (ja)
EP (1) EP2040582B1 (ja)
JP (1) JP2009540970A (ja)
KR (1) KR20090034352A (ja)
CN (1) CN101478895B (ja)
AT (1) ATE516726T1 (ja)
AU (1) AU2007264236A1 (ja)
CA (2) CA2724761A1 (ja)
DE (2) DE102006030018A1 (ja)
ES (1) ES2367869T3 (ja)
RU (1) RU2009102813A (ja)
WO (1) WO2008000207A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104032U1 (de) 2012-10-19 2014-01-20 Rohde & Grahl Gmbh Rückenlehne für einen Stuhl und mit einer Rückenlehne ausgerüsteter Stuhl

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DE102009058461C5 (de) * 2009-12-16 2015-07-09 Egon Märtens Rückenlehne für einen Stuhl, Sessel oder dgl.
DE102010047285A1 (de) 2010-09-23 2012-03-29 Viasit Bürositzmöbel Gmbh Stuhl, insbesondere Arbeitsstuhl
DE102011051966B8 (de) * 2011-07-20 2013-06-13 Interstuhl Büromöbel GmbH & Co. KG Stuhl
US9060610B2 (en) * 2011-11-11 2015-06-23 Flexsteel Industries, Inc. Spring back hinge with or without spring lock mechanism
JP2013123453A (ja) * 2011-12-13 2013-06-24 Takano Co Ltd 椅子の身体支持構造物の曲率変更機構
DE102012107778B4 (de) 2012-08-23 2018-08-16 Haworth Gmbh Stuhl, insbesondere Bürostuhl
DE102012219206B4 (de) * 2012-10-22 2017-10-26 Sedus Stoll Ag Dorsokinetische Rückenlehne eines Sitzmöbels, Sitzmöbel
ITMI20122236A1 (it) * 2012-12-27 2014-06-28 Amedeo Maffei Sistema vibrante e metodo per la stimolazione corporea a risonanza propriocettiva
US9173492B1 (en) * 2014-06-06 2015-11-03 Jacques Fortin Self-reclining chair
DE102014220695A1 (de) * 2014-10-13 2016-04-28 Haworth Gmbh Stuhl, insbesondere Bürostuhl
CN104605654B (zh) * 2015-02-13 2017-06-13 杭州护童科技有限公司 可调座深座椅的靠背结构
CN104840031A (zh) * 2015-05-07 2015-08-19 袁静 一种办公椅
CH711692A2 (de) * 2015-10-28 2017-04-28 Iii Solutions Gmbh Phoronomische Rückenlehne für einen Stuhl oder Sitz.
US10945529B2 (en) * 2017-02-03 2021-03-16 Zhejiang Sunon Furniture Manufacture Co., Ltd. Chair
KR102098904B1 (ko) * 2017-10-31 2020-04-09 최우진 자세 교정용 의자
KR102098953B1 (ko) * 2019-02-21 2020-04-09 주식회사 다원체어스 트위스트 가능한 등받이를 구비한 의자
KR20200116251A (ko) 2019-04-01 2020-10-12 (주) 파트라 틸팅형 등받이를 구비한 의자
DE102020124975A1 (de) * 2020-09-24 2022-03-24 Bock 1 Gmbh & Co. Kg Mechanik für einen Stuhl
CN112622964A (zh) * 2020-12-30 2021-04-09 江苏理工学院 一种实用舒适型地铁连排座椅

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104032U1 (de) 2012-10-19 2014-01-20 Rohde & Grahl Gmbh Rückenlehne für einen Stuhl und mit einer Rückenlehne ausgerüsteter Stuhl
DE102012109997A1 (de) 2012-10-19 2014-04-24 Rohde & Grahl Gmbh Rückenlehne für einen Stuhl und mit einer Rückenlehne ausgerüsteter Stuhl

Also Published As

Publication number Publication date
ATE516726T1 (de) 2011-08-15
ES2367869T3 (es) 2011-11-10
RU2009102813A (ru) 2010-08-10
JP2009540970A (ja) 2009-11-26
US20100301652A1 (en) 2010-12-02
CA2653912A1 (en) 2008-01-03
EP2040582A1 (de) 2009-04-01
CN101478895A (zh) 2009-07-08
DE202007007524U1 (de) 2008-10-09
DE102006030018A1 (de) 2008-01-03
KR20090034352A (ko) 2009-04-07
CA2724761A1 (en) 2008-01-03
AU2007264236A1 (en) 2008-01-03
CN101478895B (zh) 2012-04-04
WO2008000207A1 (de) 2008-01-03

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