EP 0190626 A2 19860813 - Tilting device for Venetian blinds.
Title (en)
Tilting device for Venetian blinds.
Title (de)
Wendevorrichtung für eine Lamellenjalousie.
Title (fr)
Dispositif de commande de l'axe basculant d'un store vénitien.
Publication
Application
Priority
DE 8503040 U 19850205
Abstract (en)
1. A tilting device for a venetian blind, having : a looped spring (15) which encloses a driving shaft (11) and is mounted thereon, at least under loading, with frictional contact directly or indirectly via a co-rotatable coupling sleeve (14) : looped spring ends (16a, 17a) bent outwardly from each end turn of the loop spring ; and fixed counter stops (24), an annular element (19, 20) entrainable in the direction of rotation by one of the looped spring ends being associated with each of the end turns and having a recess (22) at a place on its periphery through which the looped spring ends (16a, 17a) extend, the annular element (19, 20) enclosing the particular end turn of the looped spring (15) with a clearance such that, without affecting the spring function, any deflection is prevented which might cause permanent deformation of the looped spring (15), characterized in that the looped spring ends (16a, 17a) are directly connected to a guide member (25) which retains the lamellae, and on the rotation of the driving shaft (11) one of the ends of the loop spring abuts the counter stops (24) and reduces the frictional contact, and the annular element (19, 20) does not participate in the transmission of force between the looped spring (15) and the guide member (25), an annular element (19, 20) having on one side an inwardly extending annular flange (21) and itself bearing non-rotatably via the annular flange (21) alongside the looped spring (15) against the driving shaft or a coupling sleeve (14) enclosing the driving shaft.
Abstract (de)
Die Erfindung betrifft eine Wendevorrichtung für eine Lamellenjalousie mit einer eine Antriebswelle umgebenden, auf dieser reibschlüssig gelagerten Schlingfeder. Diese hat radial nach außen abgebogene Schlingfederenden zum Befestigen einer die Lamellen haltenden Leiter. Um die Schlingfeder vor bleibenden Verformungen zu schützen, wird erfindungsgemäß vorgeschlagen, daß den Federenden jeweils ein durch diese in Drehrichtung mitnehmbares, an der Kraftübertragung zwischen Schlingfeder und Leiter unbeteiligtes Ringelement zugeordnet ist, das an seiner Stelle seines Umfangs mit einer von dem Schlingfederende durchsetzten Aussparung versehen ist, und daß das Ringelement den jeweiligen Bereich der Schlingfeder als diese gegen bleibende Verformung sichernde Abstützung umgibt.
IPC 1-7
IPC 8 full level
E06B 9/307 (2006.01); E06B 9/308 (2006.01)
CPC (source: EP)
E06B 9/307 (2013.01)
Designated contracting state (EPC)
AT CH DE FR IT LI
DOCDB simple family (publication)
EP 0190626 A2 19860813; EP 0190626 A3 19870603; EP 0190626 B1 19891220; AT E48886 T1 19900115; DE 3667692 D1 19900125; DE 8503040 U1 19850620; DK 41686 A 19860806; DK 41686 D0 19860128
DOCDB simple family (application)
EP 86100979 A 19860124; AT 86100979 T 19860124; DE 3667692 T 19860124; DE 8503040 U 19850205; DK 41686 A 19860128