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1. WO2006094257 - TENSION ADJUSTMENT MECHANISM FOR A CHAIR

Publication Number WO/2006/094257
Publication Date 08.09.2006
International Application No. PCT/US2006/007818
International Filing Date 01.03.2006
IPC
A47C 1/032 2006.01
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS; SOFAS; BEDS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled adjustable supporting parts
032the parts being movably-coupled seat and back-rest
CPC
A47C 1/03222
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled ; concurrently; adjustable supporting parts
032the parts being movably-coupled seat and back-rest
03205having adjustable and lockable inclination
03222by means of screw-and-nut mechanism
A47C 1/03255
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled ; concurrently; adjustable supporting parts
032the parts being movably-coupled seat and back-rest
03255with a central column, e.g. rocking office chairs
A47C 1/03266
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled ; concurrently; adjustable supporting parts
032the parts being movably-coupled seat and back-rest
03261characterised by elastic means
03266with adjustable elasticity
A47C 1/03272
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled ; concurrently; adjustable supporting parts
032the parts being movably-coupled seat and back-rest
03261characterised by elastic means
03272with coil springs
A47C 1/03274
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
CCHAIRS
1Chairs adapted for special purposes
02Reclining or easy chairs
031having coupled ; concurrently; adjustable supporting parts
032the parts being movably-coupled seat and back-rest
03261characterised by elastic means
03272with coil springs
03274of torsion type
Applicants
  • HAWORTH, INC. [US]/[US] (AllExceptUS)
  • ROSLUND, Richard, N. [US]/[US] (UsOnly)
  • RUTMAN, Matthew [US]/[US] (UsOnly)
Inventors
  • ROSLUND, Richard, N.
  • RUTMAN, Matthew
Agents
  • MAKI, Mark, L.
Priority Data
60/657,52401.03.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TENSION ADJUSTMENT MECHANISM FOR A CHAIR
(FR) MECANISME DE REGLAGE DE TENSION POUR UN FAUTEUIL
Abstract
(EN)
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). This tilt control mechanism (18) includes a tension adjustment assembly (50,57) having a cam wedge (82) which supports the legs (79) of a pair of coil springs (77) and a cooperating drive block (83) assembly which cooperates with the cam wedge to drive the cam wedge upwardly and downwardly to vary the tilt tension. The drive assembly includes drive blocks mounted on a threaded shaft which are displaceable sidewardly toward and away from each other to either drive the cam wedge upwardly when the drive blocks (83) move together or downwardly when the drive blocks move away from each other.
(FR)
L'invention porte sur un mécanisme de contrôle d'inclinaison pour un fauteuil de bureau comprenant un ensemble ressort qui contrôle la tension d'inclinaison du dossier. Ce mécanisme de contrôle d'inclinaison comprend un ensemble de réglage de tension équipé d'un coin de came qui soutient les jambes d'une paire de ressorts à bobine, et un ensemble bloc d'entraînement de coopération qui coopère avec le coin de came afin d'entraîner le coin de came vers le haut et vers le bas afin de faire varier la tension d'inclinaison. Cet ensemble d'entraînement comprend des blocs d'entraînement montés sur un arbre fileté qui peuvent se déplacer dans le sens latéral les uns vers les autres et s'éloigner les uns des autres afin d'entraîner le coin de came soit vers le haut lorsque les blocs d'entraînement se déplacent ensemble soit vers le bas lorsque les blocs d'entraînement s'éloignent les uns des autres.
Also published as
US11598167
Latest bibliographic data on file with the International Bureau