WINDOW CURTAIN AND CONTROL UNIT THEREOF Russian patent published in 2016 - IPC E06B9/307 E06B9/308 

FIELD: machine building.

SUBSTANCE: control unit window curtains comprises drive shaft, sleeve fitted on drive shaft, retaining device arranged around sleeve. Locking device has locking state in which it blocks rotary movement of bushing and drive shaft to hold shadowing structure of window curtain in desired position and unlocked state in which provides for rotation of bushing and drive shaft for vertical adjustment of shading structure. Release unit includes drive, operatively connected with locking device. Drive includes rod having elongated shape extending vertically along longitudinal axis. Unit includes drum for cord and control cable connected to each other; and coupling is operatively connected with drum for cord. Coupling is made with possibility of connection and disconnection of drum for cord relative to drive shaft. Control cord is pulled to actuate drum for cord and switching clutch in connecting state, to transfer rotation of drum for cord through coupling in connecting state to actuate bushing and drive shaft to lift shading structure. Rod is made with possibility of rotation around longitudinal axis for switching of locking device from locking state into unlocked state to lower shading structure by gravity. Window curtain comprises top rail shadow design, lower part, suspended cords connected to cord winding units, and control unit.

EFFECT: ease and safety of operation.

21 cl, 34 dwg