Winding shaft with tubular drive and electronic motion sensor

摘要

The screening device comprises a tubular element with an axis of rotation and rotatable in relation to a shaft device. It further comprises a screening body with one end secured to said tubular element and a free opposite end, which on rotation of said tubular element is adapted to move between a first position, in which the screening body is completely rolled up on said tubular element, and a second position, in which the screening body extends over said aperture in order to screen it. A drive unit for driving said tubular element comprises a motor connected to said tubular element and said shaft device such as to provide said rotation of said tubular element in relation to said shaft device. A control unit controls operation of said motor and comprises a printed circuit board with an electronic motion sensor. Said printed circuit board is located in a fixed position in relation to said axis of rotation of said tubular element and/or in relation to said shaft device.