EP 1258208 B1 20060322 - Biased spring, particularly for synchronised mechanisms in office chairs
Title (en)
Biased spring, particularly for synchronised mechanisms in office chairs
Title (de)
Vorgespannte Federanordnung, insbesondere zur Federbeaufschlagung von Synchronmechaniken von Bürostühlen
Title (fr)
Ressort précontraint, notamment pour mécanismes synchronisés dans chaises de bureau
Publication
Application
Priority
DE 10126001 A 20010518
Abstract (en)
[origin: EP1258208A2] The coaxially mounted springs (28) have an adjuster leg (31) and a supporting leg (29), using a hand operated cam system (32) to couple the adjuster legs (31). The spring force (F) is adjusted in steps, obtained by adjoining cams (40,41) whose faces (42) are related to the cam twist angle first by flat sectors (43,47,50), excentric sectors (44,48,51) and finally by holding sectors (45,49,52) coaxial with the cam system (9). The two sets of sectors per cam (40,22) should be offset in the rotating sense of the cam. The control sectors (44,48,51) are formed by flat extensions of the sectors (43,47,50), co-planar with the sectors (43,47,50) in the cam lift direction.
IPC 8 full level
A47C 1/024 (2006.01); A47C 1/032 (2006.01)
CPC (source: EP US)
A47C 1/03255 (2013.01 - EP US); A47C 1/03266 (2013.01 - EP US); A47C 1/03272 (2013.01 - US); A47C 1/03274 (2018.07 - EP US); A47C 1/03277 (2013.01 - US); A47C 1/03294 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1258208 A2 20021120; EP 1258208 A3 20040128; EP 1258208 B1 20060322; AT E320736 T1 20060415; DE 10126001 A1 20021121; DE 50206108 D1 20060511; US 2002171277 A1 20021121; US 6709056 B2 20040323
DOCDB simple family (application)
EP 02009188 A 20020425; AT 02009188 T 20020425; DE 10126001 A 20010518; DE 50206108 T 20020425; US 14785602 A 20020520