EP 1039815 A1 20001004 - ADJUSTMENT MECHANISM, BACK COVER AND ARM REST FOR A CHAIR
Title (en)
ADJUSTMENT MECHANISM, BACK COVER AND ARM REST FOR A CHAIR
Title (de)
STELLMECHANIK, RÜCKENBEZUG UND ARMLEHNE FÜR EINEN STUHL
Title (fr)
SYSTEME MECANIQUE DE REGLAGE, GARNITURE DE DOSSIER ET APPUIS-BRAS POUR FAUTEUIL
Publication
Application
Priority
IB 9801671 W 19981021
Abstract (en)
[origin: US6557939B1] The adjustment mechanism contains a pneumatic spring that is placed vertically in the underframe, for adjusting height, and a pneumatic spring that is linked to the seat support at one end and the back-rest at the other, for synchronized adjustment of the angle. The pivotable back-rest and the fixed seat support are coupled with each other on the main rotational axis in two hinge connections. The main rotational axis runs above and crosswise over the seat plate. The seat plate has guide cranks on its underside, the supporting arms of the seat support engaging is said guide cranks in such a way that they can slide crosswise to the main rotational axis. The front bearing pegs of the supporting arms engage in the guide cranks. The seat plate is coupled together with the inclination spring on the moving rotational axis on the back-rest. The invention also relates to a back cover with a variably positionable lumbar reinforcement insert and height-adjustable armrests. The inventive adjustment mechanism offers efficient and comfortable synchronization between the sequences of movement of the back-rest and the seat plate.
IPC 1-7
IPC 8 full level
A47C 7/40 (2006.01); A47C 1/03 (2006.01); A47C 1/032 (2006.01); A47C 3/026 (2006.01); A47C 3/18 (2006.01); A47C 3/30 (2006.01); A47C 7/46 (2006.01); A47C 7/54 (2006.01)
CPC (source: EP US)
A47C 1/03 (2013.01 - US); A47C 1/0305 (2018.08 - EP US); A47C 1/03255 (2013.01 - EP US); A47C 1/03272 (2013.01 - EP US); A47C 1/03283 (2013.01 - EP US); A47C 1/03294 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL
DOCDB simple family (publication)
WO 0022960 A1 20000427; AT E249772 T1 20031015; DE 59809667 D1 20031023; EP 1039815 A1 20001004; EP 1039815 B1 20030917; JP 2002527175 A 20020827; US 6557939 B1 20030506
DOCDB simple family (application)
IB 9801671 W 19981021; AT 98946677 T 19981021; DE 59809667 T 19981021; EP 98946677 A 19981021; JP 2000576743 A 19981021; US 58188900 A 20000619