DE502004003024D1 - Synchronous mechanism for office chairs - Google Patents

Synchronous mechanism for office chairs

Info

Publication number
DE502004003024D1
DE502004003024D1 DE502004003024T DE502004003024T DE502004003024D1 DE 502004003024 D1 DE502004003024 D1 DE 502004003024D1 DE 502004003024 T DE502004003024 T DE 502004003024T DE 502004003024 T DE502004003024 T DE 502004003024T DE 502004003024 D1 DE502004003024 D1 DE 502004003024D1
Authority
DE
Germany
Prior art keywords
bearings
cam
spring
synchronous mechanism
office chairs
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.)
Active
Application number
DE502004003024T
Other languages
German (de)
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
Original Assignee
Bock 1 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 Bock 1 GmbH and Co KG filed Critical Bock 1 GmbH and Co KG
Publication of DE502004003024D1 publication Critical patent/DE502004003024D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A47C1/03261—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
    • 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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Abstract

Synchronizing mechanism comprises a spring arrangement (10) having an extension spring (24) arranged parallel to the sliding direction of a seat support (4) and between a bearings. Preferred Features: One or more bearings for increasing the spring length can be adjusted to adjust the pre-tension of further extension springs (22). Each adjustable bearing is formed by a receiving hook which is hinged on an cam. The cam can be rotated by an adjusting drive via a worm gear pair.
DE502004003024T 2003-12-06 2004-10-21 Synchronous mechanism for office chairs Active DE502004003024D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10357165A DE10357165A1 (en) 2003-12-06 2003-12-06 Synchronous mechanism for office chairs

Publications (1)

Publication Number Publication Date
DE502004003024D1 true DE502004003024D1 (en) 2007-04-12

Family

ID=34442488

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10357165A Withdrawn DE10357165A1 (en) 2003-12-06 2003-12-06 Synchronous mechanism for office chairs
DE502004003024T Active DE502004003024D1 (en) 2003-12-06 2004-10-21 Synchronous mechanism for office chairs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10357165A Withdrawn DE10357165A1 (en) 2003-12-06 2003-12-06 Synchronous mechanism for office chairs

Country Status (5)

Country Link
EP (1) EP1537804B1 (en)
CN (1) CN100569144C (en)
AT (1) ATE354992T1 (en)
DE (2) DE10357165A1 (en)
DK (1) DK1537804T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040175B3 (en) 2007-05-07 2008-06-05 Bock 1 Gmbh & Co. Kg Synchronism mechanism for office chair, has spring arrangement with helical spring locked in area of winding channel against spring deformation, where channel acts on latch of adjusting arrangement, and has variable engagement depths
DE102007021782B3 (en) 2007-05-07 2008-09-18 Bock 1 Gmbh & Co. Kg Synchronous mechanism for office chairs
WO2010028412A1 (en) * 2008-09-15 2010-03-18 Bene Ag Device for adjusting the pivoting resistance of a backrest
DE102009010234A1 (en) * 2009-02-24 2010-09-02 Klöber GmbH Synchronization mechanism for office chair, has spring lever with rotation point that is arranged in lower region of plate, where front pivotable part of spring lever is directly pressed on pressure spring
JP5724063B2 (en) * 2010-12-27 2015-05-27 コクヨ株式会社 Chair
PL2725943T3 (en) * 2011-07-01 2018-01-31 L&P Property Man Co Tilt mechanism for a chair and chair
CN102813392A (en) * 2012-08-16 2012-12-12 中山凯美日用品有限公司 Angle adjusting and positioning device for chair back
DE102014104870A1 (en) 2014-04-04 2015-10-08 Bock 1 Gmbh & Co. Kg Mechanics for an office chair
DE102015214297B4 (en) * 2015-07-28 2023-03-23 Stabilus Gmbh Electrically adjustable office chair
CN105361484B (en) * 2015-12-01 2017-11-24 中原工学院 A kind of timing adjustable seating
DE102018115925A1 (en) * 2018-07-02 2020-01-02 König + Neurath AG chair
DE102020101033A1 (en) 2020-01-17 2021-07-22 Bock 1 Gmbh & Co. Kg Carrier for a chair

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8401000U1 (en) * 1984-01-14 1984-04-05 Mauser Waldeck AG, 3544 Waldeck SWIVEL CHAIR
US5106157A (en) * 1989-03-01 1992-04-21 Herman Miller, Inc. Chair height and tilt adjustment mechanisms
FR2674414B1 (en) * 1991-03-26 1995-05-05 Lingranotto Ets SYNCHRONIZED BACK SEAT AND SEAT.
DE19640564A1 (en) * 1996-10-01 1998-04-02 Stoll Sedus Ag Seating with reclining seat and backrest
DE19810768B4 (en) 1998-03-06 2009-09-24 Drabert Gmbh office chair
DE19823632C1 (en) * 1998-05-27 1999-09-30 Roeder Peter Office chair
DE19922442A1 (en) * 1999-05-07 2000-11-30 Sdm Hansen Ag St Margrethen Seat with backrest has gas compression spring with main spring and one or more additional springs selectively supporting same for biasing front bearing point of seat plate
DE20003313U1 (en) 2000-02-23 2001-07-05 Koenig & Neurath Ag Spring unit for weight adjustment of a chair
CA2368923C (en) * 2001-01-25 2006-03-14 Jsj Seating Company Texas, L.P. Office chair
DE10125994A1 (en) 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Synchronous mechanism for a correlated movement of the seat backrest of an office chair
DE10241562A1 (en) * 2002-09-07 2004-03-18 Bock-1 Gmbh & Co. Synchronous mechanism for office chairs

Also Published As

Publication number Publication date
EP1537804A1 (en) 2005-06-08
CN1623471A (en) 2005-06-08
DK1537804T3 (en) 2007-06-25
CN100569144C (en) 2009-12-16
DE10357165A1 (en) 2005-06-30
EP1537804B1 (en) 2007-02-28
ATE354992T1 (en) 2006-03-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition