EP0071710A2 - Chaise de bureau avec siège et dossier réglable - Google Patents

Chaise de bureau avec siège et dossier réglable Download PDF

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Publication number
EP0071710A2
EP0071710A2 EP82104994A EP82104994A EP0071710A2 EP 0071710 A2 EP0071710 A2 EP 0071710A2 EP 82104994 A EP82104994 A EP 82104994A EP 82104994 A EP82104994 A EP 82104994A EP 0071710 A2 EP0071710 A2 EP 0071710A2
Authority
EP
European Patent Office
Prior art keywords
seat plate
inclination
seat
inclination adjustment
backrest
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.)
Withdrawn
Application number
EP82104994A
Other languages
German (de)
English (en)
Other versions
EP0071710A3 (fr
Inventor
Eckhard Hansen
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.)
Sitag Sitzmobel Ag
Original Assignee
Sitag Sitzmobel 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 Sitag Sitzmobel Ag filed Critical Sitag Sitzmobel Ag
Publication of EP0071710A2 publication Critical patent/EP0071710A2/fr
Publication of EP0071710A3 publication Critical patent/EP0071710A3/fr
Withdrawn legal-status Critical Current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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0244—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by fluid means

Definitions

  • the invention relates to a work chair with height and inclination adjustable by means of gas pressure, seat plate carried by a seat support and independently of the seat plate inclination in its inclination adjustable backrest support.
  • Such work chairs are used, for example, as office chairs, that is to say typewriter or desk chairs, and in this case are usually designed to be rotatable about a vertical axis as a swivel chair and often also as a wheelchair; but they can also be found as seats for the operator of the most varied types of machines, such as machine tools, or at other manufacturing workplaces, and also as driver seats for a wide variety of vehicles, for example in locomotives of different designs, and then mostly fixed and at most rotatable about a vertical axis, use.
  • these work chairs also have the disadvantage of lengthening or shortening the length of the seat and backrest, which leads to the so-called "shirt pull-out effect" when the work chair user moves more frequently, that is, at least partially pulling the shirt out of the back of the chair user's pants .
  • the invention is based on the object, the disadvantages of known asynchronous work chairs with the simplest Avoid funds.
  • this object is achieved in that the pivot axis between the seat support and the seat plate for the inclination adjustment of the seat plate is arranged near the front end of the seat plate and the gas spring for the inclination adjustment of the seat plate relative to the seat support in the rear region of the seat plate engages the latter.
  • the pivot axis for changing the inclination of the seat plate lies in the very front area of the seat plate, the height of the front end of the seat plate, i.e. the area of the bearing surface of the thighs of the chair user, does not change when the seat plate inclination changes or only imperceptibly, so that no readjustment of the elevator is necessary with such an inclination adjustment.
  • the gas spring for the seat plate tilt adjustment engages a relatively large lever arm opposite the associated pivot axis, compared to chairs in which the pivot axis for the seat plate tilt adjustment is approximately in the middle of the depth of the seat plate and the associated gas pressure spring is quite close to this pivot axis, and therefore only needs a weaker dimensioning.
  • the arrangement according to the invention also makes it easier for the chair user to make the seat plate inclination adjustment and can be more sensitive than with known ones Work chairs.
  • this last-mentioned property enables an additional, essential advantage to be achieved.
  • the seat plate inclination always remains locked in the position once set
  • this setting that is to say when the locking mechanism for the seat plate inclination adjustment is switched off, the described pull-out shirt effect is also reduced to a minimum.
  • the design according to the invention makes it possible to constructively, namely with regard to the accommodation and with regard to the force relationships, very advantageously to arrange the gas pressure spring for the inclination adjustment of the seat plate approximately vertically, behind the center line of the gas pressure spring of the height lift for the height adjustment of the seat plate.
  • this pivot bearing does not need to accommodate very large adjustment angles for the inclination adjustment of the seat plate, it is advantageously possible to design this pivot bearing as a rubber-elastic bearing.
  • FIG. 1 shows, very schematically, a side view of the front part of the seat support with associated seat plate and with the gas pressure springs for the seat plate inclination adjustment and for the backrest inclination adjustment.
  • the seat plate support 1 is designed as an upwardly open, approximately cup-shaped housing, the outer contour lines of which are shown in dash-dot lines.
  • the seat plate 2 is pivotally connected to the seat support 1 via a rubber-elastic bearing 3 attached to its front end.
  • the backrest support 4 is connected to the seat support 1 so as to be pivotable about the pivot axis 5.
  • a seat fastening plate shown in broken lines with the reference number 6 connected.
  • the gas pressure spring 9 is switched on for the seat plate inclination adjustment; Between the hinge point 10 of the seat support 1 and the hinge point 11 on the backrest support 4 is the gas pressure spring 12 for the backrest inclination adjustment.
  • the center line of the height lift (not shown) for the seat support 1 is shown as a dash-dotted line 13; the gas pressure spring 9 for the seat plate inclination adjustment is approximately parallel to the center line 13, somewhat behind it.
  • the locking device for the gas pressure spring 9 of the seat plate inclination adjustment can be switched off by means (not shown), such as, for example, a correspondingly configured link guide for the (also not shown) adjusting lever for the seat plate inclination, so that the seat plate 2 is then free around the rubber-elastic bearing 3 is swinging and can therefore adapt to every movement of the chair user. It can be seen that the front support area 14 of the seat plate 2 practically does not change its height when the inclination of the seat plate 2 changes.
  • a maximum automatic adaptation of the work chair to the body properties and to the respective posture of the user results if the locking of the gas pressure spring 12 for the inclination adjustment of the backrest support 4 and thus the backrest can be switched off in the long run. That can by means (also not shown) on the adjusting lever for the backrest inclination, for example by means of a correspondingly designed link guide for this adjusting lever, or else by a separate operating element.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
EP82104994A 1981-08-05 1982-06-08 Chaise de bureau avec siège et dossier réglable Withdrawn EP0071710A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3130999 1981-08-05
DE19813130999 DE3130999A1 (de) 1981-08-05 1981-08-05 Arbeitstuhl mit einstellbarer sitzflaeche und rueckenlehne
CH5073/81A CH652287A5 (en) 1981-08-05 1981-08-06 Work chair with adjustable seat surface and backrest

Publications (2)

Publication Number Publication Date
EP0071710A2 true EP0071710A2 (fr) 1983-02-16
EP0071710A3 EP0071710A3 (fr) 1984-04-25

Family

ID=48183118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104994A Withdrawn EP0071710A3 (fr) 1981-08-05 1982-06-08 Chaise de bureau avec siège et dossier réglable

Country Status (4)

Country Link
EP (1) EP0071710A3 (fr)
CH (1) CH652287A5 (fr)
DE (1) DE3130999A1 (fr)
DK (1) DK348482A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509050A1 (de) * 1984-10-24 1986-04-24 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co, 8561 Offenhausen Betaetigungs-vorrichtung fuer den ausloesestoessel einer laengenverstellbaren gasfeder
EP0846429A2 (fr) * 1996-12-06 1998-06-10 CLERPREM S.p.A. Chaise
CN113729405A (zh) * 2021-09-23 2021-12-03 杨于新 前椅后桌连体式桌椅

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325798C2 (de) * 1983-07-16 1998-09-17 Buerositzmoebelfabrik Friedric Gasfeder zum Einstellen von Rückenlehnen von Stühlen, wie Bürodrehstühlen u.a.
DE19528649C2 (de) * 1995-08-04 1997-05-22 Stabilus Gmbh Stuhl mit Rückenlehnenrückstellung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134746A1 (de) * 1971-07-12 1973-01-25 Atsugi Motor Parts Co Ltd Einstellbare stuetzeinrichtung
DE2615860A1 (de) * 1976-04-10 1977-10-27 Wilkhahn Wilkening & Hahne Sitzmoebel, insbesondere stuhl
GB1518226A (en) * 1975-04-23 1978-07-19 Mandal A Chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134746A1 (de) * 1971-07-12 1973-01-25 Atsugi Motor Parts Co Ltd Einstellbare stuetzeinrichtung
GB1518226A (en) * 1975-04-23 1978-07-19 Mandal A Chair
DE2615860A1 (de) * 1976-04-10 1977-10-27 Wilkhahn Wilkening & Hahne Sitzmoebel, insbesondere stuhl

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509050A1 (de) * 1984-10-24 1986-04-24 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co, 8561 Offenhausen Betaetigungs-vorrichtung fuer den ausloesestoessel einer laengenverstellbaren gasfeder
EP0846429A2 (fr) * 1996-12-06 1998-06-10 CLERPREM S.p.A. Chaise
EP0846429A3 (fr) * 1996-12-06 2000-05-17 CLERPREM S.p.A. Chaise
CN113729405A (zh) * 2021-09-23 2021-12-03 杨于新 前椅后桌连体式桌椅

Also Published As

Publication number Publication date
DK348482A (da) 1983-02-06
EP0071710A3 (fr) 1984-04-25
CH652287A5 (en) 1985-11-15
DE3130999A1 (de) 1983-02-24

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Effective date: 19841227

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Inventor name: HANSEN, ECKHARD