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DE69738088T2 - Synchronized chair with adjustable seat and backrest - Google Patents

Synchronized chair with adjustable seat and backrest Download PDF

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Publication number
DE69738088T2
DE69738088T2DE69738088TDE69738088TDE69738088T2DE 69738088 T2DE69738088 T2DE 69738088T2DE 69738088 TDE69738088 TDE 69738088TDE 69738088 TDE69738088 TDE 69738088TDE 69738088T T2DE69738088 T22DE
Authority
DE
Germany
Prior art keywords
backrest
seat
jump
support
frame
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 - Lifetime
Application number
DE69738088T
Other languages
German (de)
Other versions
DE69738088D1 (en
Inventor
Robert J. Middleville Battey
Arnold B. Winona Dammermann
Larry Holland Dekraker
Kevin A. Ekdahl
Kurt R. Grand Rapids Heidmann
Michelle R. Wyoming Johnson
Gardner J. II Ada Klaasen
Glenn A. Kentwood Knoblock
James A. Alto Perkins
Gordon J. Rockford Peterson
Edward H. Wyoming Punches
Charles P. Wyoming Roossien
Robert M. Scheper
David S. East Grand Rapids Teppo
Michael J. Comstock Park Yancharas
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.)
Steelcase Inc
Original assignee
Steelcase Inc
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
Priority to US08 / 957,561priorityCriticalpatent / US5871258A / en
Priority to US957473priority
Priority to US957506priority
Priority to US957604priority
Priority to US08 / 957,548 priority patent / US5909923A / en
Priority to US08 / 957,473 priority patent / US5975634A / en
Priority to US08 / 957,506 priority patent / US6086153A / en
Priority to US957561priority
Priority to US08 / 957,604 priority patent / US5979984A / en
Priority to US957548priority
Application filed by Steelcase IncfiledCriticalSteelcase Inc
Priority to US09 / 386,668 priority patent / US6116695A / en
Priority to US09 / 491,975 priority patent / US6367877B1 / en
Priority to US09 / 694,041 priority patent / US6349992B1 / en
Priority to US09 / 921,059 priority patent / US6460928B2 / en
Priority to US10 / 214,543prioritypatent / US6749261B2 / en
Priority to US10 / 376,535 priority patent / US6905171B2 / en
Priority to US10 / 439,409 priority patent / US6817668B2 / en
Application granted granted Critical
Publication of DE69738088D1publicationCriticalpatent / DE69738088D1 / en
Publication of DE69738088T2publicationCriticalpatent / DE69738088T2 / en
Anticipated expirationlegal-statusCritical
Expired - Lifetimelegal-statusCriticalCurrent

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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 / 022 — Reclining or easy chairs having independently adjustable supporting parts
    • A47C1 / 023 — Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • 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 / 03233 — 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 a rack-and-pinion or like gearing 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 / 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 / 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 characterized by elastic means
    • A47C1 / 03272 — Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterized 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—