EP 2359717 A1 20110824 - CHAIR BACKREST
Title (en)
CHAIR BACKREST
Title (de)
RÜCKENLEHNE FÜR EINEN STUHL
Title (fr)
DOSSIER DE CHAISE
Publication
Application
Priority
- JP 2009005705 W 20091028
- JP 2008277530 A 20081029
- JP 2009054129 A 20090306
Abstract (en)
A chair backrest in which a frame-like back frame (22) is covered with a bag-like upholstering material (26) having an open lower end in a state of tension, the back frame being formed by connecting a pair of left and right side portion frames (18, 18), which extend in an up and down direction, together at upper ends and lower ends thereof by an upper frame (19) and a lower frame (20) which extend in the left and right direction, wherein intermediate portions in the left and right direction of the upper frame and the lower frame are connected to each other by an intermediate frame (21) which is situated behind the both side portion frames and is extended in the up and down direction, thereby causing an intermediate portion of a rear surface portion of the upholstering material to project rearward. According to such a backrest, when a person sitting on the chair leans against the backrest, the reaction force of the upholstering material does not vary to an extreme extent during the leaning action, and a rearward recess amount of the upholstering material of the backrest in response to a load can be sufficiently secured, thereby obtaining a comfortable sitting sensation.
IPC 8 full level
A47C 1/02 (2006.01); A47C 7/40 (2006.01); A47C 7/46 (2006.01)
CPC (source: EP US)
A47C 7/40 (2013.01 - EP US); A47C 7/446 (2013.01 - EP US); A47C 7/46 (2013.01 - EP US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2359717 A1 20110824; EP 2359717 A4 20131016; EP 2359717 B1 20141126; CA 2742008 A1 20100506; CN 102202546 A 20110928; KR 20110090904 A 20110810; US 2011204694 A1 20110825; WO 2010050204 A1 20100506
DOCDB simple family (application)
EP 09823317 A 20091028; CA 2742008 A 20091028; CN 200980143931 A 20091028; JP 2009005705 W 20091028; KR 20117009630 A 20091028; US 200913126731 A 20091028