EP0372232A1 - Chaise, notamment chaise de travail ou chaise de bureau - Google Patents

Chaise, notamment chaise de travail ou chaise de bureau Download PDF

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Publication number
EP0372232A1
EP0372232A1 EP89120480A EP89120480A EP0372232A1 EP 0372232 A1 EP0372232 A1 EP 0372232A1 EP 89120480 A EP89120480 A EP 89120480A EP 89120480 A EP89120480 A EP 89120480A EP 0372232 A1 EP0372232 A1 EP 0372232A1
Authority
EP
European Patent Office
Prior art keywords
seat
axis
support arms
rotation
levers
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
EP89120480A
Other languages
German (de)
English (en)
Other versions
EP0372232B1 (fr
Inventor
Heinrich Korn
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.)
Haworth Buroeinrichtungen GmbH
Original Assignee
Roeder 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 Roeder GmbH filed Critical Roeder GmbH
Priority to AT89120480T priority Critical patent/ATE83625T1/de
Publication of EP0372232A1 publication Critical patent/EP0372232A1/fr
Application granted granted Critical
Publication of EP0372232B1 publication Critical patent/EP0372232B1/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
    • 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
    • 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

Definitions

  • the invention relates to a chair, in particular a work or office chair, with a seat which can be pivoted in the front region about a horizontal pivot axis and whose inclination can be changed and, depending on the change in inclination of the seat, the inclination of the backrest which can be changed disproportionately, in the case of increasing inclination of the seat, the backrest executes an additional relative movement with respect to the facing end of the seat, in which pivot levers are articulated on both sides of the seat on support arms of the chair frame, the free ends of which are fixed and non-rotatably attached to and support the backrest, and in which the seat is rotatably connected to the pivot levers in its central region.
  • Such a chair is known from DE-GM 88 06 835.
  • the relative movements between the backrest and the seat required for the desired seating comfort are achieved by means of an adjusting device comprising swivel levers and driving levers which take over the coupling between the backrest, the seat and the chair frame.
  • an adjusting device comprising swivel levers and driving levers which take over the coupling between the backrest, the seat and the chair frame.
  • the seat in the region of its front edge with respect to the articulation axis of the swivel lever is mounted so that it can be rotated upward on extensions of the support arms so as to be adjustable or to a limited extent and that the axis of rotation between the swivel lever and the seat is adjustable or limited is inconceivable.
  • the end positions of the seat and the backrest coupled therewith are determined in such a way that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end section of the seat on the support arms, which are in the region the front ends of the elongated holes of the support arms facing the front, and that in the other end position the axis of rotation between the seat and the pivot levers is lowered below the axis of rotation of the end section of the seat on the support arms, which are then in the region of the lower ends facing the rear the elongated holes of the support arms.
  • the design is carried out so that the seat ends in an end section inclined towards the base surface, that the end section of the seat is rotatably supported on the support arms such that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that in the entire pivot range of the pivot lever, the axis of rotation between the seat and the pivot levers above the axis of rotation of the end portion of the seat the support arms remains and that when the seat is lowered, the axis of rotation between the seat and the pivot levers adjusts in elongated holes in the seat or the pivot lever limits from the front to the rear and defines the two end positions of the seat, or that the axis of rotation of the end section ites of the seat in horizontal elongated holes of the support arms is limited adjustable and when the seat is lowered, the two end positions of the same determine that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot
  • a kind of counter-movement between the seat and the backrest with simultaneous lowering of the front seat edge is achieved according to one embodiment in that the axis of rotation of the end portion of the seat in slot holes of the support arms is limited adjustable and when lowering the seat, the two end positions of the same defines that the axis of rotation between the seat and the pivot levers above the connecting line between the pivot axis of the pivot levers on the support arms and the fixed attachment points of the pivot levers on the backrest, that the elongated holes of the support arms are offset relative to the pivot axis of the pivot levers on the support arms in addition to the front and are inclined to rise that in one end position the axis of rotation between the seat and the pivot levers lies in a horizontal plane with the axis of rotation of the end portion of the seat on the support arms, which are in the region of the upper ends of the oblong holes facing the front d he is support arms, and that in the other end position, the axis of rotation between the seat and the pivot levers below the axi
  • the invention is characterized in that the pivot levers are designed as armrests or armrests or are connected to them.
  • the seat 16 ends in the front region in the end section 17 which is inclined towards the base.
  • the pivot levers 13 are pivotally connected to the seat 16, as can be seen from the axis of rotation 18, which lies below the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, like the bearing plates 19 on the swivel levers 13.
  • the rotational mounting of the seat 16 on the support arms 11 takes place in the axis of rotation 21 ', which can be formed by bearing bolts which are guided in the elongated holes 20 of the support arms 11 and are adjustable to a limited extent.
  • the elongated holes 20 are introduced into the extensions 22 of the support arms 11 and lie vertically above the articulation axis 12 of the pivot levers 13, whereby they rise towards the front.
  • the two end positions of the seat 16 and an intermediate position of the same are shown. It can be seen that with a change in inclination of the seat 16 when lowering the inclination of the backrest 15 to the vertical changes disproportionately, ie the angle of inclination of the backrest 15 to the vertical increases more than the change in the angle of inclination of the seat 16.
  • the axis of rotation 21 'of Seat 16 on the support arms 11 executes a downward movement in the inclined oblong holes 20, which has the consequence that with the lowering of the seat 16, the distance between the fixed attachment points 14 of the pivot levers 13 on the backrest 15 and the facing end of the seat 16 reduced, as the distances a and b show.
  • the front one The edge of the seat, which is formed by the transition between the seat 16 and the end section 17, is additionally lowered in the direction of the standing surface when the seat 16 is lowered, ie, its inclination is increased.
  • the displacement of the front edge of the seat in the direction of the backrest 15 is negligible.
  • the axis of rotation 21 ' is placed at the transition from the seat 16 to the end portion 17.
  • the length and the inclination of the elongated holes 20 determine the lowering movement of the front seat edge and also the two end positions of the seat 16, by abutment of the bearing bolts 21 at the ends of the elongated holes 20.
  • the elongated holes 20 are located in the support arms 11 above the articulation axis 12 of the swivel levers 13 on the support arms 11, they begin above the articulation axis 12 and extend horizontally towards the front.
  • the axis of rotation 18 between the pivot levers 13 and the seat 16 is now but over the connecting line between the pivot axis 12 of the pivot lever 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15, as the bearing tabs 23 show.
  • a distance of about 30 mm has proven to be advantageous.
  • the axis of rotation 21 ' can also be done in fixed points of the support arms 11 when the axis of rotation 18 is made limited adjustable.
  • the easiest way to do this can be realized by elongated holes in the seat 16 or the pivot levers 13, which allow a limited horizontal adjustment between the seat 16 and the pivot levers 13.
  • the axis of rotation 21 ' is located in the region of the ends of the elongated holes 20 facing the front and adjusts when the seat 16 is lowered into the region of the ends of the elongated holes 20 facing the rear, so that the front edge of the seat 16 when the seat 16 is lowered is lowered with. Due to the simultaneous adjustment of the seat 16 in the direction of the backrest 15, in connection with the displacement of the axis of rotation 18 between the seat 16 and the pivot levers 13 via the connecting line between the articulation axis 12 and the fixed fastening points 14, a kind of counter-movement of the backrest 15 faces End of the seat 16 reached.
  • the axis of rotation 21 'and the axis of rotation 18 are approximately in a horizontal plane, while in the lower end position of the seat 16, the axis of rotation 18 is pivoted below the axis of rotation 21 '.
  • the elongated holes 20 determine these end positions and bring the lowering path of the front seat edge with their dimensions and their inclination.
  • the pivot levers 13 are preferably designed as armrests or armrests or provided with them.
  • the exemplary embodiments show that no drive levers and drive lever joints are required in order to effect all the adjustment means required for the desired relative movements between the seat, backrest and chair frame by these parts themselves. It depends solely on the arrangement of the elongated holes 20 in the support arms 11 or the seat 16 or the pivot levers 13 and their dimensions and orientation as well as the position of the axis of rotation 18 between the seat 16 and the pivot levers 13 to the connecting line between the pivot axis 12 of the pivot levers 13 on the support arms 11 and the fixed attachment points 14 of the pivot lever 13 on the backrest 15.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Plural Heterocyclic Compounds (AREA)
EP89120480A 1988-11-18 1989-11-06 Chaise, notamment chaise de travail ou chaise de bureau Expired - Lifetime EP0372232B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120480T ATE83625T1 (de) 1988-11-18 1989-11-06 Stuhl, insbesondere arbeits- oder buerostuhl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838999A DE3838999A1 (de) 1988-11-18 1988-11-18 Stuhl, insbesondere arbeits- oder buerostuhl
DE3838999 1988-11-18

Publications (2)

Publication Number Publication Date
EP0372232A1 true EP0372232A1 (fr) 1990-06-13
EP0372232B1 EP0372232B1 (fr) 1992-12-23

Family

ID=6367401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120480A Expired - Lifetime EP0372232B1 (fr) 1988-11-18 1989-11-06 Chaise, notamment chaise de travail ou chaise de bureau

Country Status (7)

Country Link
US (1) US5575095A (fr)
EP (1) EP0372232B1 (fr)
JP (1) JPH0620410B2 (fr)
AT (1) ATE83625T1 (fr)
CA (1) CA2002948C (fr)
DE (2) DE3838999A1 (fr)
ES (1) ES2036782T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535262A1 (fr) * 1991-09-30 1993-04-07 WIESNER-HAGER MÖBEL GmbH Chaise réglable et adaptable à la taille d'une personne, notamment chaise rotative

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6007150A (en) 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
US9609952B2 (en) 2012-05-04 2017-04-04 Itoki Corporation Chair, especially, office chair
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322450A1 (de) * 1983-06-22 1985-01-10 August Fröscher GmbH & Co KG, 7141 Steinheim Vorrichtung zum verstellen des sitzes und der rueckenlehne von stuehlen
DE8616836U1 (de) * 1986-06-24 1987-10-22 Hartmann, Günter, 5800 Hagen Sitzmöbel, insbesondere Stuhl

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429917A (en) * 1981-04-29 1984-02-07 Hauserman Inc. Int. Furniture & Textile Division Chair
BR8109037A (pt) * 1981-08-19 1983-09-06 Giroflex Entwicklungs Ag Cadeira
FR2533428A1 (fr) * 1982-09-23 1984-03-30 Strafor Sa Mecanisme de siege a mouvement differentiel pour siege basculant
DE3372059D1 (en) * 1983-10-05 1987-07-23 Giroflex Entwicklungs Ag Chair with an inclinable seat and back-rest
DE3429186A1 (de) * 1984-08-08 1986-02-20 Uredat-Neuhoff, Angela, 4592 Lindern Sitzmoebel, insbesondere buerostuhl
CH666171A5 (de) * 1984-10-03 1988-07-15 Giroflex Entwicklungs Ag Stuhl mit rueckwaerts neigbarem sitz- und rueckenlehnentraeger.
US4616877A (en) * 1985-05-09 1986-10-14 Kimball International, Inc. Chair with back height adjustment
DE8515221U1 (de) * 1985-05-23 1986-05-22 VOKO - Franz Vogt & Co, 6301 Pohlheim Sitzmöbel
DE8713972U1 (de) * 1987-10-17 1987-11-26 Nikov, Ljubomir, 6457 Maintal Stuhl oder Sessel mit synchron verstellbarer Neigung von Rückenlehne und Sitz
DE3744363A1 (de) * 1987-12-29 1989-07-13 Roeder Gmbh Stuhl, insbesondere arbeits- oder buerostuhl
DE3744365C3 (de) * 1987-12-29 1994-04-14 Roeder Gmbh Stuhl, insbesondere Arbeits- oder Bürostuhl
DE8806835U1 (de) * 1988-05-19 1988-09-08 Roeder GmbH, 6000 Frankfurt Stuhl, insbesondere Arbeits- oder Bürostuhl
DE8814409U1 (de) * 1988-11-18 1989-01-26 Roeder GmbH, 6000 Frankfurt Stuhl, insbesondere Arbeits- oder Bürostuhl
DE3916474A1 (de) * 1989-05-20 1990-11-22 Roeder Soehne Sitzmoebelfab Stuhl, insbesondere arbeits- oder buerostuhl

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3322450A1 (de) * 1983-06-22 1985-01-10 August Fröscher GmbH & Co KG, 7141 Steinheim Vorrichtung zum verstellen des sitzes und der rueckenlehne von stuehlen
DE8616836U1 (de) * 1986-06-24 1987-10-22 Hartmann, Günter, 5800 Hagen Sitzmöbel, insbesondere Stuhl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0535262A1 (fr) * 1991-09-30 1993-04-07 WIESNER-HAGER MÖBEL GmbH Chaise réglable et adaptable à la taille d'une personne, notamment chaise rotative

Also Published As

Publication number Publication date
DE58903114D1 (de) 1993-02-04
US5575095A (en) 1996-11-19
EP0372232B1 (fr) 1992-12-23
CA2002948A1 (fr) 1990-05-18
CA2002948C (fr) 1994-07-26
JPH0620410B2 (ja) 1994-03-23
JPH02172410A (ja) 1990-07-04
ES2036782T3 (es) 1993-06-01
DE3838999C2 (fr) 1990-11-08
ATE83625T1 (de) 1993-01-15
DE3838999A1 (de) 1990-05-23

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