EP0085670B1 - Stuhl - Google Patents

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Publication number
EP0085670B1
EP0085670B1 EP81902299A EP81902299A EP0085670B1 EP 0085670 B1 EP0085670 B1 EP 0085670B1 EP 81902299 A EP81902299 A EP 81902299A EP 81902299 A EP81902299 A EP 81902299A EP 0085670 B1 EP0085670 B1 EP 0085670B1
Authority
EP
European Patent Office
Prior art keywords
seat
movement
back rest
pair
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.)
Expired
Application number
EP81902299A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0085670A1 (de
Inventor
Hermann Locher
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.)
Giroflex Entwicklungs AG
Original Assignee
Giroflex Entwicklungs 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 Giroflex Entwicklungs AG filed Critical Giroflex Entwicklungs AG
Priority to AT81902299T priority Critical patent/ATE12168T1/de
Publication of EP0085670A1 publication Critical patent/EP0085670A1/de
Application granted granted Critical
Publication of EP0085670B1 publication Critical patent/EP0085670B1/de
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
    • A47C1/03211—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by electric motors
    • 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
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs

Definitions

  • the invention relates to a chair according to the preamble of claim 1.
  • the invention now aims to avoid this relative movement or at least to reduce it in such a way that it is no longer noticeable.
  • a chair of the type mentioned is characterized according to the invention by the features of the characterizing part of the claim.
  • FIG. 1 shows a possible embodiment of such a known chair.
  • the standpipe of the chair is called.
  • This has a seat support 2 with tabs 3 (only one visible) which contain an axis of rotation 4 for the seat 5 formed from pins or the like.
  • Standpipe 1, seat support 2, tabs 3 and thus also the axis of rotation 4 are to be regarded as stationary for the following explanations; they are therefore also shown in this figure as if they formed a single part.
  • the seat 5 is the first of the movable parts in that it can be pivoted about the axis of rotation 4.
  • the solid line shows the seat in its normal position; the dashed line, marked 5 ', shows it in its tilted or inclined position, into which it can be brought by a leaning user.
  • the pivot angle between the starting position 5 and the inclined position 5 ' is denoted by a.
  • the seat has a pivot axis 6 at its rear end. A further movable part is attached to this, namely the backrest, which is denoted overall by 7, is pivotable. It continues below the pivot axis 6 in a guide part 8 consisting of two parallel supports (only one support visible in FIG. 1). This is rigidly connected to the backrest 7.
  • the seat 5 is not only pivotable about the axis of rotation 4, but is also mounted in a longitudinally displaceable manner, as will be shown on the basis of the following explanations.
  • the guide part 8 can namely be pivoted about a pivot axis 9a attached to the rigid seat support 2, and since it is consequently stationary, it forms the center of the pivoting movement of all movable parts, i.e. the seat 5, the backrest 7 and the guide part 8 together with the pivot axis 6 it follows from this, in particular when looking at FIG. 1, that the seat not only pivots about the axis of rotation 4, but also has to move along the same, which is made possible by suitable means, usually by elongated holes.
  • a piston rod 10 of a cylinder-piston unit usually a gas spring 11 of a commercially available type, which must also be pivotably mounted due to the movement of the pivot axis 6, specifically at the upper end of the standpipe 1.
  • the pivot axis 6 also changes its position as mentioned; the new location is designated 6 '. In doing so, she travels a distance labeled a.
  • the guide part 8 also changes its position, since it carries the pivot axis 6. Its new layer 8 'forms an angle with the old layer 8 which is larger than the angle a. Since the backrest 7 is rigidly connected to the guide part 8, it also changes its position to the same extent. It also swivels from 7 to 7 'by this angle, which is denoted by ⁇ . She points So in this position to the seat at a larger angle than in the starting position.
  • Fig. 2 shows schematically some structural details.
  • the seat 5 is shown partially broken away to show the underlying organs. It can be seen that the seat support 2 widens considerably at its front end, that is to say it is T-shaped, in order to carry one tab 3 each.
  • the axis of rotation 4 can consist of two short swivel shafts about which the seat 5 can swing.
  • the pivot axis 6, however, is continuous because of the bearing of the piston rod 10; it is attached to the underside of the seat 5 in a known and therefore not shown manner.
  • the guide part 8 consisting of the two mentioned supports, and the backrest 7 are rigidly connected to one another, these parts are shown as a single part.
  • the backrest 7 not only makes a circular pivoting movement, but also lowers by the distance a. If you consider a point on the backrest, for example the upper end E, it moves according to the arrows 12 to the position E '.
  • FIG. 3 the same parts as in FIG. 1 can initially be seen.
  • the backrest 7 has changed somewhat, as will be explained.
  • the position of the gas spring 11 has also changed. It is now pivotally attached to the seat support 2.
  • an approximately L-shaped pair of transmission levers 13 (only one lever can be seen in FIG. 3) and a driver bow 14 have been newly added.
  • the pair of transmission levers 13 has three articulation points.
  • each of the L-shaped levers With the short leg 13a of each of the L-shaped levers, the pair of levers is articulated on the pivot axis 9 of the guide part 8 and on the piston rod 10 of the gas spring.
  • Another articulation point is designated 15; this is the actual axis of rotation, which is fixedly attached to immovable seat support 2 and about which the pair of transmission levers 13 rotates.
  • the last articulation point 16 is located on the longer leg 1 3b of each lever and is formed by an axis with which the driver bow 14 is articulated on the transmission lever pair 13 (FIG. 4).
  • the driver bow 14 a rigid, curved, elongated plate, is articulated on a backrest plate 70 at its other end. Details can be found above all in FIG. 5, which is yet to be explained.
  • This backrest plate 70 is slidably supported by sliders 71 on a guide consisting of two guide rails 72, which form a direct continuation of each support of the guide part 8. 5, the sliders 71 have a recess 73 into which a projecting rib 74 of each guide rail 72 engages.
  • the driver bow 14 is connected to the backrest plate 70 in an articulated manner via a pivot axis 17, this pivot axis passing through two tabs 75 rigidly attached to the plate.
  • the embodiment shown here shows thus a mechanical adjustment device. It goes without saying that other adjustment devices, for example hydraulic or electrical, could also be used to bring about the same effect. It should also be pointed out that, especially when using such adjustment devices, a reverse relative movement between the backrest and the seat can also take place, in that the latter is raised at the inclination while the backrest or the backrest plate merely inclines. By lifting the seat, the same relative displacement between the seat and the backrest results in this case as in the example shown.

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)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Finger-Pressure Massage (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Control Of El Displays (AREA)
EP81902299A 1981-08-19 1981-08-19 Stuhl Expired EP0085670B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81902299T ATE12168T1 (de) 1981-08-19 1981-08-19 Stuhl.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1981/000094 WO1983000610A1 (fr) 1981-08-19 1981-08-19 Chaise

Publications (2)

Publication Number Publication Date
EP0085670A1 EP0085670A1 (de) 1983-08-17
EP0085670B1 true EP0085670B1 (de) 1985-03-20

Family

ID=4538419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81902299A Expired EP0085670B1 (de) 1981-08-19 1981-08-19 Stuhl

Country Status (15)

Country Link
US (1) US4502729A (enrdf_load_stackoverflow)
EP (1) EP0085670B1 (enrdf_load_stackoverflow)
JP (1) JPS5841511A (enrdf_load_stackoverflow)
AT (1) ATE12168T1 (enrdf_load_stackoverflow)
AU (1) AU541109B2 (enrdf_load_stackoverflow)
BR (1) BR8109037A (enrdf_load_stackoverflow)
CA (1) CA1183074A (enrdf_load_stackoverflow)
CH (1) CH661647A5 (enrdf_load_stackoverflow)
DE (2) DE3152945D2 (enrdf_load_stackoverflow)
DK (1) DK154921C (enrdf_load_stackoverflow)
FI (1) FI75091C (enrdf_load_stackoverflow)
NO (1) NO160967C (enrdf_load_stackoverflow)
PT (1) PT75330B (enrdf_load_stackoverflow)
WO (1) WO1983000610A1 (enrdf_load_stackoverflow)
ZA (1) ZA825764B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538752A1 (de) * 1985-04-16 1986-10-23 Steifensand Sitzmöbel- und Tischfabrik Inh.: F. Martin Steifensand, 8501 Wendelstein Sitzmoebel in form eines stuhls oder sessels, insbesondere fuer buerozwecke
US9004597B2 (en) 2012-09-20 2015-04-14 Steelcase Inc. Chair back mechanism and control assembly

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JPS59189562U (ja) * 1983-06-02 1984-12-15 タカノ株式会社 椅子
DE8316576U1 (de) * 1983-06-07 1983-11-10 Röder GmbH Sitzmöbelwerke, 6000 Frankfurt Sitzmoebel
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
CH662257A5 (de) * 1983-07-20 1987-09-30 Syntech Sa Arbeitsstuhl.
EP0136374B1 (de) * 1983-10-05 1987-06-16 Giroflex-Entwicklungs AG Stuhl mit neigbarem Sitz- und Lehnenteil
DE8401000U1 (de) * 1984-01-14 1984-04-05 Mauser Waldeck AG, 3544 Waldeck Drehsessel
JPS60154039U (ja) * 1984-03-24 1985-10-14 千原　猶一 椅子
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DE8515221U1 (de) * 1985-05-23 1986-05-22 VOKO - Franz Vogt & Co, 6301 Pohlheim Sitzmöbel
DE3528335A1 (de) * 1985-08-07 1987-02-26 Roeder Soehne Sitzmoebelfab Vorrichtung zum abstuetzen eines teiles eines moebels, insbesondere eines buerostuhles, an einem anderen teil dieses moebels
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538752A1 (de) * 1985-04-16 1986-10-23 Steifensand Sitzmöbel- und Tischfabrik Inh.: F. Martin Steifensand, 8501 Wendelstein Sitzmoebel in form eines stuhls oder sessels, insbesondere fuer buerozwecke
US9004597B2 (en) 2012-09-20 2015-04-14 Steelcase Inc. Chair back mechanism and control assembly
US9010859B2 (en) 2012-09-20 2015-04-21 Steelcase Inc. Chair assembly
US9022476B2 (en) 2012-09-20 2015-05-05 Steelcase Inc. Control assembly for chair
US9027998B2 (en) 2012-09-20 2015-05-12 Steelcase Inc. Chair assembly
US9027999B2 (en) 2012-09-20 2015-05-12 Steelcase Inc. Control assembly for chair
US9027997B2 (en) 2012-09-20 2015-05-12 Steelcasel Inc. Chair assembly
US9049935B2 (en) 2012-09-20 2015-06-09 Steelcase Inc. Control assembly for chair
USD742676S1 (en) 2012-09-20 2015-11-10 Steelcase Inc. Chair
USD742677S1 (en) 2012-09-20 2015-11-10 Steelcase Inc. Chair
US9345328B2 (en) 2012-09-20 2016-05-24 Steelcase Inc. Chair assembly with upholstery covering
US9451826B2 (en) 2012-09-20 2016-09-27 Steelcase Inc. Chair assembly
US9462888B2 (en) 2012-09-20 2016-10-11 Steelcase Inc. Control assembly for chair
US9492013B2 (en) 2012-09-20 2016-11-15 Steelcase Inc. Chair back mechanism and control assembly

Also Published As

Publication number Publication date
NO160967B (no) 1989-03-13
NO831360L (no) 1983-04-18
FI831278A0 (fi) 1983-04-15
AU541109B2 (en) 1984-12-13
US4502729A (en) 1985-03-05
PT75330B (de) 1984-05-21
CH661647A5 (en) 1987-08-14
DE3152945D2 (en) 1983-11-03
AU7450581A (en) 1983-03-08
DE3152945C1 (de) 1987-06-19
DK154921C (da) 1989-05-29
DK154921B (da) 1989-01-09
DK170083A (da) 1983-04-18
JPH0230244B2 (enrdf_load_stackoverflow) 1990-07-05
FI831278L (fi) 1983-04-15
BR8109037A (pt) 1983-09-06
WO1983000610A1 (fr) 1983-03-03
ATE12168T1 (de) 1985-04-15
NO160967C (no) 1989-06-21
EP0085670A1 (de) 1983-08-17
PT75330A (de) 1982-08-01
CA1183074A (en) 1985-02-26
DK170083D0 (da) 1983-04-18
ZA825764B (en) 1983-06-29
JPS5841511A (ja) 1983-03-10
FI75091B (fi) 1988-01-29
FI75091C (fi) 1988-05-09

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