A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A cordless blind device that can be operated in various types such as manual, semiautomatic, and automatic types is provided. The cordless blind device includes: a winding roll, a screen, a driving motor providing a driving force to the winding roll, a weight connected to a lower end of the screen and applying torque in a direction in which the screen is unwound; a torsion spring applying torque in a direction in which the screen is wound by applying elasticity to the winding roll; and a rotation conversion module transmitting power in two directions between the driving motor and the winding roll, in which when the driving motor does not generate driving force, the torque applied by the torsion spring, the torque applied by the weight, and resistance by the rotation conversion module and the driving motor make equilibrium, so the screen remains stopped, and when an external force is applied upward or downward to the weight, the equilibrium of the forces breaks, so the screen is wound on or unwound from the winding roll.
A cordless blind device that can be operated in various types such as manual, semiautomatic, and automatic types is provided. The cordless blind device includes: a winding roll, a screen, a driving motor providing a driving force to the winding roll, a weight connected to a lower end of the screen and applying torque in a direction in which the screen is unwound; a torsion spring applying torque in a direction in which the screen is wound by applying elasticity to the winding roll; and a rotation conversion module transmitting power in two directions between the driving motor and the winding roll, in which when the driving motor does not generate driving force, the torque applied by the torsion spring, the torque applied by the weight, and resistance by the rotation conversion module and the driving motor make equilibrium, so the screen remains stopped, and when an external force is applied upward or downward to the weight, the equilibrium of the forces breaks, so the screen is wound on or unwound from the winding roll.
CORDLESS BLIND DEVICE
SCHNURLOSE JALOUSIENVORRICHTUNG
DISPOSITIF DE STORE SANS CORDON
JANG SEONG-RYONG (author)
2021-10-27
Patent
Electronic Resource
English
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES