EP 0210381 A2 19870204 - Screen-positioning device for use in roll blind.
Title (en)
Screen-positioning device for use in roll blind.
Title (de)
Schirmpositionierungsvorrichtung für einen Rollvorhang.
Title (fr)
Dispositif de positionnement de rideau pour un store à rouleau.
Publication
Application
Priority
JP 16584285 A 19850729
Abstract (en)
A screen-positioning device for use in a roll blind comprising a fixed shaft (20) sustained by a bracket (12) for rotatably supporting the screen-roll (10), an extension shaft (21) secured to the fixed shaft (20) and formed with a drum portion (22) and a screw-bolt portion (23), a torsional spring (25) having one end thereof fixed to the drum portion (22) and the other end loosely turning around the screw-bolt portion (23), a screw-nut (26) mounted on the screw-bolt portion (23) and formed with a conical surface (28) for fitting engagement with the spring (25). When the surface (28) is raised to a predetermined height, the conical surface (28) is so engaged with the free end portion of the spring (25) that the spring (25) is caused to tighten on the drum portion (22). Whenever the screw-nut (26) is engaged with the spring (25), it undergoes the spring-back force to be rotated in the direction in which the screen (30) is lowered. The fixed shaft (20) is supported by the bracket (12) with the intervention of a one-way clutch mechanism comprising a brake drum (38) secured to the bracket (12), a brake coil spring (36) wound around the brake drum (38), a sector (34) secured to the fixed shaft (20) and fitted on the brake coil spring (36), a slit (35) formed in the periphery of the sector (34) to receive opposite ends (36a, 36b) of the brake coil spring (36), a dial-ring (40) loosely fitted on the sector (34) and provided with an inner projection (41) put in between the both ends (36a, 36b). The roll-up height of the screen is determined by an axial position of the screw-nut (26) on the screw-bolt portion (23). The axial position is easily adjusted by use of the dial-ring (40), which is rotatable together with the fixed shaft (20) or extension shaft (21) move the screw-nut (26) along the screw-bolt portion (23).
IPC 1-7
IPC 8 full level
E06B 9/56 (2006.01); E06B 9/60 (2006.01); E06B 9/80 (2006.01); E06B 9/82 (2006.01); E06B 9/88 (2006.01)
CPC (source: EP)
E06B 9/60 (2013.01); E06B 9/82 (2013.01); E06B 9/88 (2013.01); E06B 2009/6881 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0210381 A2 19870204; EP 0210381 A3 19870819; EP 0210381 B1 19891220; AT E48884 T1 19900115; DE 3667689 D1 19900125; ES 556294 A0 19870401; ES 8704578 A1 19870401; JP S6229693 A 19870207
DOCDB simple family (application)
EP 86107630 A 19860605; AT 86107630 T 19860605; DE 3667689 T 19860605; ES 556294 A 19860619; JP 16584285 A 19850729