Safety device for roller blind, has elastic part provided perpendicular to plane of contact between elongated elastic element and electric motor shaft to apply force on elongated elastic element

摘要

The device has an electric motor provided with an electric motor shaft whose flat face is parallel to a longitudinal axis. An axis is located in a conjugated form to accommodate a fixed structure of a curtain. An elongated elastic element is positioned perpendicular to the motor shaft and in contact with the flat face of the motor shaft. One end of the elastic element is integrated with the fixed structure of the curtain. An elastic part is provided perpendicular to a plane of contact between the elongated elastic element and the motor shaft to apply force on the elastic element.