EP 3825507 A1 20210526 - ROLLER BLIND THAT FREELY OPENS/CLOSES UP AND DOWN
Title (en)
ROLLER BLIND THAT FREELY OPENS/CLOSES UP AND DOWN
Title (de)
FREI NACH OBEN UND UNTEN ÖFFNENDER/SCHLIESSENDER ROLLLADEN
Title (fr)
STORE ROULANT QUI S'OUVRE ET SE FERME LIBREMENT
Publication
Application
Priority
- CN 201810513089 A 20180524
- CN 2019087906 W 20190522
Abstract (en)
A roller blind that freely opens and closes up and down, which comprises a roller shaft, a drawing cord and a drawing device. An end part of the roller shaft is provided with a movable pulley (1), and the drawing cord comprises a lifting section (31) and a pull-down section (32) which are drawn by the drawing device to move synchronously; the lifting section (31) and the pull-down section (32) bypass the movable pulley (1) and then tension upward and downward respectively so as to keep the movable pulley (1) stable, such that the movable pulley (1) may rotate while lifting, thus achieving the free up and down opening and closing of the roller blind.
IPC 8 full level
E06B 9/40 (2006.01)
CPC (source: CN EP)
E06B 9/40 (2013.01 - CN EP); E06B 9/42 (2013.01 - CN); E06B 9/62 (2013.01 - EP); E06B 9/64 (2013.01 - EP); E06B 9/68 (2013.01 - CN EP); E06B 9/70 (2013.01 - EP)
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)
EP 3825507 A1 20210526; EP 3825507 A4 20220608; EP 3825507 B1 20240424; EP 3825507 C0 20240424; CN 108533162 A 20180914; CN 108533162 B 20200221; WO 2019223708 A1 20191128
DOCDB simple family (application)
EP 19807513 A 20190522; CN 201810513089 A 20180524; CN 2019087906 W 20190522