EP0532475A1 - Stuhl mit synchron verstellbarem Sitz und Rückenlehne - Google Patents

Stuhl mit synchron verstellbarem Sitz und Rückenlehne Download PDF

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Publication number
EP0532475A1
EP0532475A1 EP92830471A EP92830471A EP0532475A1 EP 0532475 A1 EP0532475 A1 EP 0532475A1 EP 92830471 A EP92830471 A EP 92830471A EP 92830471 A EP92830471 A EP 92830471A EP 0532475 A1 EP0532475 A1 EP 0532475A1
Authority
EP
European Patent Office
Prior art keywords
shaft
oscillating support
oscillating
fixed
fixed body
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.)
Ceased
Application number
EP92830471A
Other languages
English (en)
French (fr)
Inventor
Sergio Moreschi
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.)
Cofemo SpA
Original Assignee
Cofemo SpA
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 Cofemo SpA filed Critical Cofemo SpA
Publication of EP0532475A1 publication Critical patent/EP0532475A1/de
Ceased 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
    • A47C1/03261—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
    • 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
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • 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

  • This invention refers to chairs provided with a vertically adjustable device and with a seat and back whose inclination can be contemporaneously changed.
  • the main object of this invention is to supply a chair of the above-mentioned type with a simplified, but anyway efficient, structure thanks to an original shape, arrangement and combination of the devices which enable the synchronization of the inclination between the seat and the back.
  • Another object of this invention is to supply a chair with variously inclinable seat and back which doesn't need any additional device to the supports of the two parts, being those supports simply pivoted one to the other and joined by the springy device which opposes to the movements of the back.
  • the chair is essentially composed by an upright 10 preferably adjustable in height and fixed at its bottom on a basement (not shown), a body 11 fixed to the top of the upright 10, an oscillating support 12 pivoted to the fixed body and springy elements 13 which connect the fixed body to the oscillating support 12.
  • the fixed body 11 carries on its front a transversal shaft 14, on which a crossbar 15 is placed which can oscillate, and on its back a second shaft 16, parallel to the first one, on which the oscillating support 12 is pivoted.
  • the crossbar 15 extends transversally above the fixed body 11 and the front part of a seat-carrying element 17 is fixed to it, the rear part of this seat-carrying element being fixed to the oscillating support 12 trough elastic, i.e. flexible, blocks 18.
  • a back-carrying element 19 is fixed to the oscillating support 12 so that it looks like a continuation of the seat-carrying element 17 practically without solution of continuity.
  • the springy elements 13 which link the fixed body 11 to the oscillating support 12 are usually two and they are symmetrically located at the opposite sides of the upright 10, parallelly to the sides of the fixed body and inside it.
  • Each springy element 13 is set between the first transversal shaft 14, the one which carries the oscillating crossbar 15, and a bar 12a fixed to the oscillating support 12 in an eccentric position relatively to the second transversal shaft 16, and lower than the latter. This is made to oppose to the oscillation of the mentioned support and to mantain it rotated upwards in opposition to the thrust which would incline it backwards together with the back.
  • each springy element 13 has a sleeve 20 with a horn end 20a which anchors to the above-mentioned bar 12a, a shaft, which is guided and shifts inside the said sleeve and is provided with a head 21a which anchors to the first shaft 14 and a pre-loaded helical spring 22 which is co-axial to the sleeve 20 and contained in a capsule 22a.
  • the spring 22 is placed between a collar 20b integral with the sleeve 20 and a slider 23 placed on and shifting along the shaft 21 and/or on its head 21a.
  • the pre-load of the spring 22 can then be varied by changing the position of the slider 23 along the shaft 21 so to regulate the contrast of the angular shiftings of the oscillating support 12 of the back.
  • a wedge-shaped element 25 connected with and adjustable by an adjusting screw 26 which is provided of an adjusting wheel 27 and mounted on the fixed body 11, to rotate without translation.
  • a lever device 28 as shown in Figs.2 and 4 may be mounted and provided for controlling the adjustment in height of the upright 10 when the latter includes or is made of a gas piston.
EP92830471A 1991-09-10 1992-09-07 Stuhl mit synchron verstellbarem Sitz und Rückenlehne Ceased EP0532475A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS910076U IT225124Z2 (it) 1991-09-10 1991-09-10 Sedia con sedile e schienale ad inclinazione variabile
ITBS910076U 1991-09-10

Publications (1)

Publication Number Publication Date
EP0532475A1 true EP0532475A1 (de) 1993-03-17

Family

ID=11344641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830471A Ceased EP0532475A1 (de) 1991-09-10 1992-09-07 Stuhl mit synchron verstellbarem Sitz und Rückenlehne

Country Status (3)

Country Link
EP (1) EP0532475A1 (de)
CA (1) CA2077847A1 (de)
IT (1) IT225124Z2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023434A1 (de) * 1995-02-02 1996-08-08 Sifa Sitzfabrik Gmbh Gewichtseinstellung für stühle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139448A1 (de) * 1981-10-03 1983-04-21 Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg "stuhl"
US4830431A (en) * 1987-08-24 1989-05-16 Noboru Inoue Interlocking cushioning mechanism for supporting seat portion and backrest of chair in integral fashion
EP0429837A1 (de) * 1989-11-30 1991-06-05 WILHELM LINK GmbH & Co. KG Stahlrohrmöbel Stuhl, insbesondere Bürostuhl

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139448A1 (de) * 1981-10-03 1983-04-21 Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg "stuhl"
US4830431A (en) * 1987-08-24 1989-05-16 Noboru Inoue Interlocking cushioning mechanism for supporting seat portion and backrest of chair in integral fashion
EP0429837A1 (de) * 1989-11-30 1991-06-05 WILHELM LINK GmbH & Co. KG Stahlrohrmöbel Stuhl, insbesondere Bürostuhl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023434A1 (de) * 1995-02-02 1996-08-08 Sifa Sitzfabrik Gmbh Gewichtseinstellung für stühle

Also Published As

Publication number Publication date
ITBS910076V0 (it) 1991-09-10
IT225124Z2 (it) 1996-09-19
CA2077847A1 (en) 1993-03-11
ITBS910076U1 (it) 1993-03-11

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