EP 3850989 A1 20210721 - CHAIR STRUCTURE WITH AN ELASTICALLY YIELDING BACKREST
Title (en)
CHAIR STRUCTURE WITH AN ELASTICALLY YIELDING BACKREST
Title (de)
STUHLSTRUKTUR MIT EINER ELASTISCH NACHGEBENDEN RÜCKENLEHNE
Title (fr)
STRUCTURE DE CHAISE COMPORTANT UN DOSSIER ÉLASTIQUEMENT DÉFORMABLE
Publication
Application
Priority
IT 202000000682 A 20200116
Abstract (en)
Chair structure with elastically yielding backrest, comprising a first substantially rigid portion (8) of said backrest (4), constrained to a second substantially rigid portion (6) of a seat (2) by means of a connecting element (10), said connecting element (10) comprising a ball joint (12, 14) and a coupling pin (16) integral with one of the two substantially rigid portions (6, 8) to be connected together and engaging in the other, which presents a cavity (34) delimited by a wall (18) having a through hole (36) crossed by said coupling pin (16), characterized in that it comprises at least two elastic elements (20, 20', 22, 50, 52) maintained in a state of prestress, of which at least a first elastic element (20, 20') is arranged around said first coupling pin (16) and at least a second elastic element (22, 50, 52) is interposed between said connecting element (10) and said wall (18), the diameter of said coupling pin (16) being smaller than the diameter of said through hole (36) obtained in said wall (18) to an extent suitable to allow lateral inclinations of a predetermined entity of said pin (16) with respect to the axis of said hole (36).
IPC 8 full level
CPC (source: EP)
A47C 7/40 (2013.01); A47C 7/448 (2013.01)
Citation (applicant)
CN 108294516 A 20180720 - HANGZHOU DINGHUI HOME TECH CO LTD
Citation (search report)
- [XAI] CN 108294516 A 20180720 - HANGZHOU DINGHUI HOME TECH CO LTD
- [A] EP 0308538 A1 19890329 - STOLL KG CHRISTOF [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 21151767 A 20210115