EP0954997A2 - Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise - Google Patents

Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise Download PDF

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Publication number
EP0954997A2
EP0954997A2 EP99108525A EP99108525A EP0954997A2 EP 0954997 A2 EP0954997 A2 EP 0954997A2 EP 99108525 A EP99108525 A EP 99108525A EP 99108525 A EP99108525 A EP 99108525A EP 0954997 A2 EP0954997 A2 EP 0954997A2
Authority
EP
European Patent Office
Prior art keywords
seat
slots
box
chair
mutually
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
EP99108525A
Other languages
German (de)
English (en)
Other versions
EP0954997A3 (fr
EP0954997B1 (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 EP0954997A2 publication Critical patent/EP0954997A2/fr
Publication of EP0954997A3 publication Critical patent/EP0954997A3/fr
Application granted granted Critical
Publication of EP0954997B1 publication Critical patent/EP0954997B1/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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03238—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 means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C1/03255—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
    • A47C1/03266—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

Definitions

  • the present invention relates to a device for the synchronized adjustment of the position of the seat and back of a chair.
  • chairs of the type used in offices or the like are formed by a seat which is supported by a column which ends, at the opposite end, with a base with a plurality of spokes which is adapted to rest on the ground.
  • This mechanism has, for example, a rack which allows the engagement of a tooth which allows the back to recline in a plurality of positions with respect to the seat.
  • the aim of the present invention is therefore to provide a device for the synchronized adjustment of the position of the seat and back of a chair which provides a plurality of positions that said back can assume, allowing a smooth transition from one position to the other.
  • an object of the present invention is to provide a device for the synchronized adjustment of the position of the seat and back of a chair in which the device has means for stably locking the inclination reached by the back with respect to the base of the chair.
  • Another object of the present invention is to provide a device for the synchronized adjustment of the position of the seat and back of a chair which is highly reliable, relatively easy to manufacture and at competitive costs.
  • a device for the synchronized adjustment of the position of the seat and back of a chair comprising a box-like body which is adapted to support a first element for supporting a seat of the chair and also comprising a second supporting element which is adapted to support the back of the chair and is articulated to the first supporting element and to said box-like body, characterized in that it comprises means for mutually engaging said box-like body and a curved plate-like element which is provided at one end of said first supporting element and in which a plurality of slots are formed which are adapted to engage said engagement means, said engagement means and said slots being arranged in a mutually staggered position, so as to allow adjustment of said back in a plurality of mutually closely spaced positions.
  • the device according to the present invention comprises a box-like body 2 for supporting the seat and the back.
  • the box-like body 2 has a supporting element 3 which is hinged at an intermediate point of said body and is meant to support a seat 4 on which there is a padding 5 in order to improve the comfort of the user when sitting.
  • a second supporting element 12 meant to support a back 10 of the chair, is pivoted to the first supporting element 3, which supports the seat 4, and to the box-like body 2.
  • the pivoting of the second supporting element 12 to the first supporting element 3 is designated by the reference numeral 13, while the pivoting of the second supporting element 12 to the box-like body is not shown in the Figures and occurs in any case within the box-like body 2.
  • the first supporting element 3 is provided with a pair of shoulders 14 and 15, at the end of which there are holes 16 and 17 which allow to pivot the supporting element 3 to the second supporting element 12 at the point 13.
  • a substantially curved plate-like element 18 is arranged between the pair of shoulders 14 and 15 and is provided with a plurality of slots 19 which are arranged on two side-by-side rows so that the slots 19 of one row are staggered with respect to the slots of the adjacent row.
  • the box-like body 2 contains engagement means which are adapted to engage the slots 19 in order to lock the back 10 in the various positions with respect to the base of the chair.
  • tilting the back also entails tilting the seat with respect to the surface on which the chair rests.
  • the engagement means accommodated in the box-like body 2 are constituted by at least one bolt 20 which is adapted to engage one of the slots 19 formed in the curved plate-like element 18 of the first supporting element 3.
  • a plate-like element 31 is arranged above the pair of bolts so as to prevent their lifting and thus allow their guided translatory motion.
  • the bolts 20 are actuated by means of a lever 21 for vertically adjusting the seat 4 of the chair.
  • the thrust of the lever 21 is applied by means of a pusher 23 with which a lamina 24 is associated; said lamina lies transversely with respect to the pusher 23 and is engaged, at its respective ends, with a pair of actuation bars 25 and 26 which are rigidly coupled to the bolts 20.
  • the adjustment of the force that contrasts the synchronous tilting of the back and of the seat 4 is provided by virtue of elastic means 30 which are compressed by means of a knob 35 and a rod-like element 36.
  • the second supporting element 12 is made to tilt with respect to the position that it assumes when inactive; this inclination allows the curved plate-like element 18, rigidly coupled to the first supporting element 3, to perform a downward rotation, allowing the engagement of the bolts 20 in the respective slots 19.
  • the engagement movement of the bolts 20 is provided by the actuation of the lever 21, which acts, by means of the pusher 23 and the lamina 24, on the pair of bars 25 and 26, which in turn, by being rigidly coupled to the bolts 20, allow said bolts to be pushed forward and thus protrude from the edge of the box-like body toward the back of the chair and thus engage the slots 19.
  • slots 19 are arranged in two side-by-side mutually staggered rows, only one of the bolts 20 engages a slot 19, while the other one necessarily abuts against the curved plate-like element 18.
  • the staggering of the slots 19, arranged in two side-by-side rows allows to drastically increase the number of positions that the back can assume, without thereby weakening the mechanical strength of the curved plate-like element 18.
  • the bolt 20 is kept in abutment against the curved plate-like element 18 by the elasticity of the lamina 24, which also acts as a return spring.
  • the seat 4 which is articulated thereto, also tilts, raising its free front edge with respect to the surface on which the seat rests.
  • the actuation of the lever 21 also allows the pivot 27 to perform a translatory motion within the holes 28 and 29 of the pusher 23, so as to lock in position the bolts 20 in the slot 19 and in abutment against the curved plate-like element 18, respectively.
  • the device according to the invention fully achieves the intended aim, since it allows to gradually adjust at will the inclination of the back of the chair in step with the seat, ensuring a plurality of inclination positions, so that the inclination of the back becomes substantially continuous without appreciable steps.
  • the bolts 20 are shown arranged on the same plane, while the slots 19 are shown in two side-by-side rows and are staggered in one row with respect to the other.
  • the bolts 20 in any case engage the slots 19 so as to allow to obtain the same adjustment of the back that is obtained when the bolts 20 are mutually aligned, i.e., arranged on the same plane, while the slots 19 are staggered.
  • the materials used may be any according to requirements and to the state of the art.

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)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP99108525A 1998-05-05 1999-05-04 Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise Expired - Lifetime EP0954997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998MI000966A IT1305620B1 (it) 1998-05-05 1998-05-05 Dispositivo di regolazione in sincronismo dell'assetto di sedile eschienale di una sedia
ITMI980966 1998-05-05

Publications (3)

Publication Number Publication Date
EP0954997A2 true EP0954997A2 (fr) 1999-11-10
EP0954997A3 EP0954997A3 (fr) 2000-11-22
EP0954997B1 EP0954997B1 (fr) 2004-07-28

Family

ID=11379951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108525A Expired - Lifetime EP0954997B1 (fr) 1998-05-05 1999-05-04 Dispositif de réglage synchronisé d'un siège et d'un dossier d'une chaise

Country Status (3)

Country Link
EP (1) EP0954997B1 (fr)
ES (1) ES2226227T3 (fr)
IT (1) IT1305620B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001070074A1 (fr) * 2000-03-24 2001-09-27 Giroflex-Entwicklungs-Ag Systeme d'assise et de dossier pour des sieges, notamment pour des chaises de bureau
EP1447027A1 (fr) * 2003-02-12 2004-08-18 O.M.S. S.p.A. Dispositif mécanique, notamment pour déplacer les sièges et dossiers d'une chaise
WO2009127863A3 (fr) * 2008-04-17 2010-01-21 Simclar Seating Technologies Limited Mécanisme de limitation d'inclinaison et de verrouillage de chaise
EP2131701A4 (fr) * 2007-04-06 2011-07-13 L & P Property Management Co Dispositif de réglage pour chaises réglables

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1305620B1 (it) 1998-05-05 2001-05-09 Cofemo Spa Dispositivo di regolazione in sincronismo dell'assetto di sedile eschienale di una sedia
EP3556252B1 (fr) 2018-04-17 2020-05-13 L&P Property Management Company Mécanisme d'inclinaison pour chaise et chaise

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI980966A1 (it) 1998-05-05 1999-11-05 Cofemo Spa Dispositivo di regolazione in sincronismo dell'assetto di sedile e schienale di una sedia

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1696153A (en) * 1924-08-16 1928-12-18 Bettcher Stamping & Mfg Compan Chair
DE2642739C3 (de) * 1976-09-23 1983-12-22 Christof Stoll Gmbh & Co Kg, 7890 Waldshut Neigungsvorrichtung für Sitzmöbel
DE2748680A1 (de) * 1977-10-29 1979-05-10 Stoll Kg Christof Neigungsvorrichtung fuer sitzmoebel
CH657510A5 (de) * 1982-10-21 1986-09-15 Syntech Sa Arbeitsstuhl.
IT1278943B1 (it) * 1995-04-14 1997-11-28 Cofemo Spa Dispositivo per il bloccaggio in varie posizioni del supporto oscillante del sedile di sedie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI980966A1 (it) 1998-05-05 1999-11-05 Cofemo Spa Dispositivo di regolazione in sincronismo dell'assetto di sedile e schienale di una sedia

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001070074A1 (fr) * 2000-03-24 2001-09-27 Giroflex-Entwicklungs-Ag Systeme d'assise et de dossier pour des sieges, notamment pour des chaises de bureau
US6729688B2 (en) 2000-03-24 2004-05-04 Giroflex-Entwicklungs-Ag Seat and backseat assembly for seating, in particular office chairs
EP1447027A1 (fr) * 2003-02-12 2004-08-18 O.M.S. S.p.A. Dispositif mécanique, notamment pour déplacer les sièges et dossiers d'une chaise
EP2131701A4 (fr) * 2007-04-06 2011-07-13 L & P Property Management Co Dispositif de réglage pour chaises réglables
WO2009127863A3 (fr) * 2008-04-17 2010-01-21 Simclar Seating Technologies Limited Mécanisme de limitation d'inclinaison et de verrouillage de chaise

Also Published As

Publication number Publication date
EP0954997A3 (fr) 2000-11-22
ES2226227T3 (es) 2005-03-16
IT1305620B1 (it) 2001-05-09
ITMI980966A1 (it) 1999-11-05
EP0954997B1 (fr) 2004-07-28

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