EP0105180A2 - Siège de travail - Google Patents

Siège de travail Download PDF

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Publication number
EP0105180A2
EP0105180A2 EP83108406A EP83108406A EP0105180A2 EP 0105180 A2 EP0105180 A2 EP 0105180A2 EP 83108406 A EP83108406 A EP 83108406A EP 83108406 A EP83108406 A EP 83108406A EP 0105180 A2 EP0105180 A2 EP 0105180A2
Authority
EP
European Patent Office
Prior art keywords
articulated
seat
backrest
seat portion
furniture according
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
EP83108406A
Other languages
German (de)
English (en)
Other versions
EP0105180A3 (en
EP0105180B1 (fr
Inventor
Herbert Ludwig Wiesmann
Heinz Peter Suhr
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.)
Wilkhahn Wilkening and Hahne GmbH and Co KG
Original Assignee
Wilkhahn Wilkening and Hahne GmbH and 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 Wilkhahn Wilkening and Hahne GmbH and Co KG filed Critical Wilkhahn Wilkening and Hahne GmbH and Co KG
Priority to AT83108406T priority Critical patent/ATE24270T1/de
Publication of EP0105180A2 publication Critical patent/EP0105180A2/fr
Publication of EP0105180A3 publication Critical patent/EP0105180A3/de
Application granted granted Critical
Publication of EP0105180B1 publication Critical patent/EP0105180B1/fr
Expired 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
    • A47C1/03255—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
    • 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
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs

Definitions

  • the invention relates to a work seating, with a seat, with an articulated or flexible backrest, with a spring loading the backrest in the sense of a steep position and with a base in which a horizontal, front bearing tube on which the seat is supported in an articulated manner in the region of its front edge, and a rear, horizontal support shaft, which is located at a distance below the seat, is rigidly connected to the at least one support lever which supports the backrest in an articulated manner at lumbar height and which has at least one radially projecting cam.
  • Such work seating are known from DE-OS 30 36 993.
  • the seat inclination and the back inclination are automatically changed in a certain relationship to each other between a steep sitting posture and a comfortable backward position by shifting the weight.
  • locking devices equipped with so-called gas springs are already known, but gas springs are a relatively fault-prone component that cannot be replaced by the user in the event of damage.
  • purely mechanical locking devices a pin-shaped locking member is inserted into a corresponding locking opening, which is associated with annoying handling, especially since the actuating member can often only be gripped when sitting in a dislocated posture.
  • the known locking devices are often bulky, so that they affect the appearance of the seating.
  • the invention has for its object to provide the generic work seating with a locking device for the seat / backrest inclination, which is easy to grasp while sitting and is concealed within the already existing chair mechanism, so that it does not have the appearance of the seat impaired.
  • a locking lever is articulated on the underframe, which is articulated by a transmission member to an actuating tube which passes through the front bearing tube and can be rotated by an actuating lever, and which can be pivoted as a lock into the movement path of the cam.
  • the power transmission then takes place by means of the actuating tube which surrounds the front bearing tube, which is already present, and which therefore does not appear or hardly appears.
  • the further power transmission takes place via a transmission member which, like the locking lever, can be made relatively small, so that these parts can be accommodated more or less concealed within the part of the underframe which carries the front bearing tube and its rear support shaft.
  • the locking device according to the invention can be used with particular advantage in a piece of work seating in which the support shaft has two cams which project downward in parallel and are each articulated on the fork joint head of a control rod enclosed by a compression spring screw.
  • the locking lever is mounted centrally between the two helical compression springs on a box-shaped housing part of the base frame and carries two locking arms, each aligned with the stop pieces on the two fork joint heads, which supports the foot-side support device of the housing part between them.
  • a base frame 1 which has a column and a support arm projecting forward from the upper, approximately below the center of the column end in the form of a flat, wide housing part 2 which has a horizontal, carries front bearing tube 3, on which the seat 4 is articulated in its front region.
  • a support shaft 5 is rotatably mounted at a distance below the seat 4, at the two ends of which a support lever 6 is rigidly fastened, the other end of which is approximately attached to a backrest 7 of the seating are articulated at lumbar position 8.
  • Seat 4 and backrest 7 consist of a one-piece plastic shell and are articulated or flexibly connected to one another by a middle or intermediate part 9 which is almost flat in cross section.
  • a manual operating lever 10 is shown, which be on an operating tube 16 projecting from the bearing tube 3 is fixed and with which the device described with reference to FIGS. 3, 4 and 5 for locking the seat in the steep position according to FIG. 1 is actuated. 1, the backrest should be locked, and when the lever is pivoted down according to FIG. 2, it should be unlocked.
  • Fig. 3 shows a view from below of the box-shaped housing part 2, which is placed with a sleeve-like support 11 on a corresponding counterpart of the column 1.
  • the housing part 2 is provided with bearings 12 for the support shaft 5, which carries a radially downwardly projecting cam 13, 14 on each side of the support 11.
  • the bearing tube 3, in which the actuating tube 16 is mounted, is attached to a front wall 21 of the box-shaped housing part 2.
  • the bearing tube 3 is provided in the region of the housing part 2 with an elongated hole 17 which extends in the circumferential direction and is penetrated by a pin 18 which is fixedly connected to the actuating tube 16.
  • a transmission member 19 in the form of a stiff piece of wire is connected to the pin 18 and is to be carried out by means of the hand lever 10 Movement to a locking lever 20 transmits the locking device.
  • a Bowden cable could also be provided.
  • an intermediate wall 22 Arranged in the box-shaped housing part 2 is an intermediate wall 22 which is parallel to its front wall 21 and whose distance from the front wall 21 can be adjusted by means of a schematically indicated spreading device 23.
  • the intermediate wall 22 is penetrated by two control rods 24, 25 which carry an articulated fork head 26, 27 at the front, on which the cams. 13, 14 are articulated via bolts 28, 29.
  • the fork heads 26, 27 each have a washer, between which and the wall 22 a helical compression spring 30, 31 enclosing the control rod 24 or 25 is clamped.
  • the preload of the springs can be adjusted by means of the spreading device 23.
  • the clevises 26, 27 also each carry a stop piece 32, 33, the stop surface of which is forward, i.e. towards the front bearing tube 3.
  • a bearing 34 is formed for a bolt 35 directed parallel to the bearing tube 3 and the shaft 5, on the two freely projecting ends of which an approximately H-shaped in plan view Locking lever 20 is mounted, the free legs as locking arms 36, 37 can be pivoted in front of the stop pieces 32, 33 by means of the actuating handle 10 or pivoted away from these stop pieces 32, 33.
  • the transmission member 19 engages a pin 38 which is approximately perpendicular to the pin 35 and is arranged at a significant distance from the pin 35 on the locking lever 20.
  • the joint fork heads 26, 27 for the pivot bolts 28, 29 of the cams 13, 14 and the bearing 34 for the bolt 35 can also each be an open bearing mouth 26 'or. 34 'trained.
  • the hairpin-like curved leaf spring 39 which is schematically sketched in FIG. 3 and shown on an enlarged scale in FIG 2 is attached so that it surrounds the pin 18 between them with its two spring legs 42, 4 ' 3.
  • the two legs 42, 43 are bent close together in their central region and here form a latching threshold 44 which the pin 18 must overcome when changing between its two end positions.
  • the two clevises 26, 27 can be rigidly connected to one another via a bridge 45 which bypasses the support 11, as a result of which a symmetrical distribution of forces is ensured to a particularly high degree and bending moments and canting are prevented.
  • the locking device as shown in FIG. 3, can be made very compact and space-saving and accommodated, so that other devices such as the spreading device 23 or a further actuating tube 46 with linkage 47 for height adjustment of the seat can be accommodated in the box-shaped housing part 2 can.
  • the springs 30, 31, which load the backrest in the sense of a steep position are arranged below the seat in the housing 2, in the embodiment according to FIGS. 6 to 9 angled armrests 48 are provided which are designed to be resilient in their curvature region 49 and hold the backrest in the steep position according to FIG. 6 in the unloaded state.
  • the armrests 48 are rigid with one at their front, lower end Connected shaft 50, which passes through the bearing tube 3, or the actuating tubes 16 and 46 received by the bearing tube 3 and ensures a synchronous movement of both armrests.
  • a V-shaped locking lever 51 which is also pivotably mounted on the underside of the housing part 2 by a bolt 35, is used here, which can be pivoted in the same way as in the first exemplary embodiment via a transmission member 19 from the manual operating lever 10 and with its locking arms 52, 53 is pivoted immediately in front of the cams 13, 14.

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)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP83108406A 1982-09-03 1983-08-26 Siège de travail Expired EP0105180B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83108406T ATE24270T1 (de) 1982-09-03 1983-08-26 Arbeits-sitzmoebel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3232771 1982-09-03
DE19823232771 DE3232771A1 (de) 1982-09-03 1982-09-03 Arbeits-sitzmoebel

Publications (3)

Publication Number Publication Date
EP0105180A2 true EP0105180A2 (fr) 1984-04-11
EP0105180A3 EP0105180A3 (en) 1985-04-17
EP0105180B1 EP0105180B1 (fr) 1986-12-17

Family

ID=6172389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108406A Expired EP0105180B1 (fr) 1982-09-03 1983-08-26 Siège de travail

Country Status (9)

Country Link
US (1) US4509793A (fr)
EP (1) EP0105180B1 (fr)
JP (1) JPS59131307A (fr)
AT (1) ATE24270T1 (fr)
AU (1) AU553797B2 (fr)
CA (1) CA1208115A (fr)
DE (2) DE3232771A1 (fr)
ES (2) ES282961Y (fr)
ZA (1) ZA836396B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028770A1 (fr) * 1993-06-11 1994-12-22 Firma König & Neurath Kg Chaise
US5797653A (en) * 1993-07-22 1998-08-25 Dauphin Entwicklungs - U. Beteiligungs-Gmbh Chair, in particular office chair

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136374B1 (fr) * 1983-10-05 1987-06-16 Giroflex-Entwicklungs AG Chaise avec siège et dossier à inclinaison réglable
DE8401000U1 (de) * 1984-01-14 1984-04-05 Mauser Waldeck AG, 3544 Waldeck Drehsessel
DE3537203A1 (de) * 1984-10-24 1986-04-24 Klöber GmbH & Co, 7770 Überlingen Arbeitsstuhl mit neigungsmechanik von sitzschale und rueckenlehne
DE8511034U1 (de) * 1985-04-16 1985-06-05 Steifensand Sitzmöbel- und Tischfabrik Inh.: F. Martin Steifensand, 8501 Wendelstein Sitzmöbel in Form eines Stuhls oder Sessel, insbesondere für Bürozwecke
DE8607194U1 (de) * 1986-03-15 1986-04-30 Drabert Söhne Minden (Westf.), 4950 Minden Sitzmöbel
US5567012A (en) * 1986-04-10 1996-10-22 Steelcase, Inc. Chair control
US5050931A (en) * 1986-04-10 1991-09-24 Steelcase Inc. Controlled deflection front lip for seating
US4709963A (en) * 1986-12-12 1987-12-01 Milsco Manufacturing Company Adjustable office chair
DE3724582A1 (de) * 1987-07-24 1989-02-02 Inaba Seisakusho Ltd Sitzmoebel
US4786105A (en) * 1988-02-24 1988-11-22 All Day Chair Company Continually positionable chair with adjustable lumbar support
DE3817761A1 (de) * 1988-05-19 1989-11-30 Roeder Gmbh Stuhl, insbesondere arbeits- oder buerostuhl
DE3900220A1 (de) * 1989-01-05 1990-07-12 Wilkhahn Wilkening & Hahne Stuhl
US5203853A (en) * 1991-09-18 1993-04-20 Herman Miller, Inc. Locking chair tilt mechanism with torsion bar
DE4209066C1 (fr) * 1992-03-20 1993-04-08 Simon 4807 Borgholzhausen De Desanta
US5577807A (en) * 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
USD383019S (en) * 1995-01-17 1997-09-02 Steelcase Inc. Chair actuator
US5582464A (en) * 1995-01-17 1996-12-10 Maymon; Herzel Chair primarily for use by persons with spinal chord injury
US5725276A (en) * 1995-06-07 1998-03-10 Ginat; Jonathan Tilt back chair and control
US6007150A (en) * 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
USD421540S (en) * 1999-04-02 2000-03-14 Steelcase Inc. Chair back
USD463144S1 (en) 2000-09-28 2002-09-24 Formway Furniture Limited Chair
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
USD445580S1 (en) 2000-09-28 2001-07-31 Formway Furniture Limited Chair
AUPR054400A0 (en) 2000-09-29 2000-10-26 Formway Furniture Limited A castor
DE10109624C1 (de) * 2001-02-28 2002-09-12 Interstuhl Bueromoebel Gmbh Stuhl, insbesondere Bürostuhl
US6616231B2 (en) 2001-06-15 2003-09-09 Hon Technology Inc. Multi-position tilt-limiting mechanism
NZ518944A (en) * 2002-05-14 2004-09-24 Formway Furniture Ltd Height adjustable arm for chair with outer stem releasably lockable to inner stem by engagement of recesses
DE102005003383B3 (de) * 2005-01-24 2006-08-03 Bock 1 Gmbh & Co. Kg Synchronmechanik
US7396079B2 (en) 2005-03-08 2008-07-08 Steelcase Inc. Seating with shape-changing back support frame
US20110304192A1 (en) * 2010-06-15 2011-12-15 Augustat Betty A Ergometric Chair Apparatus
EP3858196B1 (fr) * 2016-02-05 2023-09-20 Formway Furniture Limited Chaise et ses composants
DE202016105769U1 (de) * 2016-10-14 2016-11-10 Topstar Gmbh Sitzmöbel
US11589678B2 (en) 2019-01-17 2023-02-28 Hni Technologies Inc. Chairs including flexible frames

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001097A1 (de) * 1969-12-22 1971-09-23 Imai Seisakusho Kk Kombinierter Buero- und Ruhestuhl
EP0001846A1 (fr) * 1977-10-29 1979-05-16 Christof Stoll GmbH & Co KG Dispositif d'inclinaison pour sièges
DE3036993A1 (de) * 1980-10-01 1982-05-13 Wilkhahn Wilkening + Hahne GmbH + Co, 3252 Bad Münder Arbeits-sitzmoebel

Family Cites Families (4)

* 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
CH636252A5 (de) * 1978-10-20 1983-05-31 Syntech Sa Ergonomischer stuhl.
US4408800A (en) * 1980-06-11 1983-10-11 American Seating Company Office chairs
US4432582A (en) * 1981-12-17 1984-02-21 Wilkhahn-Wilkening & Hahne Gmbh & Company Chair with means for adjusting the inclination of the backrest

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2001097A1 (de) * 1969-12-22 1971-09-23 Imai Seisakusho Kk Kombinierter Buero- und Ruhestuhl
EP0001846A1 (fr) * 1977-10-29 1979-05-16 Christof Stoll GmbH & Co KG Dispositif d'inclinaison pour sièges
DE3036993A1 (de) * 1980-10-01 1982-05-13 Wilkhahn Wilkening + Hahne GmbH + Co, 3252 Bad Münder Arbeits-sitzmoebel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028770A1 (fr) * 1993-06-11 1994-12-22 Firma König & Neurath Kg Chaise
US5797653A (en) * 1993-07-22 1998-08-25 Dauphin Entwicklungs - U. Beteiligungs-Gmbh Chair, in particular office chair

Also Published As

Publication number Publication date
DE3232771A1 (de) 1984-03-08
CA1208115A (fr) 1986-07-22
DE3368381D1 (en) 1987-01-29
ZA836396B (en) 1984-04-25
AU1857183A (en) 1984-03-08
EP0105180A3 (en) 1985-04-17
JPH0454445B2 (fr) 1992-08-31
EP0105180B1 (fr) 1986-12-17
ES282961Y (es) 1985-12-16
ATE24270T1 (de) 1987-01-15
ES282961U (es) 1985-05-01
JPS59131307A (ja) 1984-07-28
AU553797B2 (en) 1986-07-24
ES283988U (es) 1985-07-01
ES283988Y (es) 1986-04-01
US4509793A (en) 1985-04-09

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