WO2006094259A3 - Tilt control mechanism for a chair - Google Patents

Tilt control mechanism for a chair Download PDF

Info

Publication number
WO2006094259A3
WO2006094259A3 PCT/US2006/007820 US2006007820W WO2006094259A3 WO 2006094259 A3 WO2006094259 A3 WO 2006094259A3 US 2006007820 W US2006007820 W US 2006007820W WO 2006094259 A3 WO2006094259 A3 WO 2006094259A3
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
control
control mechanism
tilt
rotatable cam
Prior art date
Application number
PCT/US2006/007820
Other languages
French (fr)
Other versions
WO2006094259A2 (en
Inventor
Richard N Roslund
Matthew Rutman
Vijaykrishna Gundarapu
Naveen Guntur
Original Assignee
Haworth Inc
Richard N Roslund
Matthew Rutman
Vijaykrishna Gundarapu
Naveen Guntur
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 Haworth Inc, Richard N Roslund, Matthew Rutman, Vijaykrishna Gundarapu, Naveen Guntur filed Critical Haworth Inc
Priority to CA2600310A priority Critical patent/CA2600310C/en
Priority to EP06737049.4A priority patent/EP1855567B1/en
Priority to CN2006800066534A priority patent/CN101132719B/en
Priority to MYPI20061639A priority patent/MY147020A/en
Publication of WO2006094259A2 publication Critical patent/WO2006094259A2/en
Priority to US11/598,166 priority patent/US7429081B2/en
Publication of WO2006094259A3 publication Critical patent/WO2006094259A3/en
Priority to US12/150,847 priority patent/US7513570B2/en
Priority to US12/381,243 priority patent/US7735923B2/en
Priority to US12/802,859 priority patent/US7997652B2/en

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
    • A47C1/03255—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
    • A47C1/03238—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
    • 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
    • A47C1/03272—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
    • A47C1/03272—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
    • A47C1/03274—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 of torsion type
    • 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
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated

Abstract

A tilt control mechanism (18) for an office chair (10) includes a spring assembly (56) therein which controls the tilt tension on the back assembly (24). The tilt control mechanism (18) includes a control plate (81) mounted to the control shaft (53) on which the uprights (20) are mounted, wherein the control plate (81) rotates in combination with the uprights (20). This control plate (81) is located within the control body (19) and cooperates with a front stop assembly (85) and a back stop assembly (86) to vary the limits of forward and rearward tilting of the seat and back assemblies (30,24). Also, the tilt control mechanism (18) includes a pneumatic actuator assembly (63) having fixed and rotatable cam blocks. The rotatable cam block (82,83) rotates relative to the fixed block such that the rotatable cam block (82,83) is driven downwardly to depress the control valve (64) of the pneumatic cylinder (63) and thereby vary the height of the seat assembly (30).
PCT/US2006/007820 2005-03-01 2006-03-01 Tilt control mechanism for a chair WO2006094259A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2600310A CA2600310C (en) 2005-03-01 2006-03-01 Tilt control mechanism for a chair
EP06737049.4A EP1855567B1 (en) 2005-03-01 2006-03-01 Tilt control mechanism for a chair
CN2006800066534A CN101132719B (en) 2005-03-01 2006-03-01 Tilt control mechanism for a chair
MYPI20061639A MY147020A (en) 2005-06-10 2006-04-10 Tilt control mechanism for a chair
US11/598,166 US7429081B2 (en) 2005-03-01 2006-11-10 Tilt control mechanism for a chair
US12/150,847 US7513570B2 (en) 2005-03-01 2008-05-01 Control mechanism for a chair
US12/381,243 US7735923B2 (en) 2005-03-01 2009-03-10 Tilt control mechanism for a chair
US12/802,859 US7997652B2 (en) 2005-03-01 2010-06-15 Tilt control mechanism for a chair

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65754105P 2005-03-01 2005-03-01
US60/657,541 2005-03-01
US68972305P 2005-06-10 2005-06-10
US60/689,723 2005-06-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/598,166 Continuation US7429081B2 (en) 2005-03-01 2006-11-10 Tilt control mechanism for a chair

Publications (2)

Publication Number Publication Date
WO2006094259A2 WO2006094259A2 (en) 2006-09-08
WO2006094259A3 true WO2006094259A3 (en) 2007-02-08

Family

ID=36623592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/007820 WO2006094259A2 (en) 2005-03-01 2006-03-01 Tilt control mechanism for a chair

Country Status (5)

Country Link
US (4) US7429081B2 (en)
EP (1) EP1855567B1 (en)
CN (1) CN101132719B (en)
CA (1) CA2600310C (en)
WO (1) WO2006094259A2 (en)

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EP1855567B1 (en) 2015-09-23
US7513570B2 (en) 2009-04-07
US7429081B2 (en) 2008-09-30
CA2600310C (en) 2014-07-08
US7997652B2 (en) 2011-08-16
CN101132719A (en) 2008-02-27
US20080203797A1 (en) 2008-08-28
WO2006094259A2 (en) 2006-09-08
CA2600310A1 (en) 2006-09-08
CN101132719B (en) 2012-06-20
US20110012395A1 (en) 2011-01-20
US20090179473A1 (en) 2009-07-16
EP1855567A2 (en) 2007-11-21
US20070057553A1 (en) 2007-03-15
US7735923B2 (en) 2010-06-15

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