| 摘要 |
This invention concerns a shutter system comprising, firstly, drive systems allowing the movement of the shutter ( 1 ) along a path between a closed and an open position, said shutter ( 1 ) being intended to close an opening ( 3 ) or other aperture and, secondly, detection systems ( 16 ) allowing determination of deflection of the shutter ( 1 ) from its path, for example due to the presence of an obstruction ( 13 ) below the shutter ( 1 ), during its movement into its closed or open position, the detection systems ( 16 ) combining with the drive systems in such a way as to permit stopping or opening of the shutter ( 1 ), each of the side edges of the shutter ( 1 ) running in a guide track ( 9 ). This system is characterised by the fact that the detection systems ( 16 ) are fitted in such a way as to be able to combine them with the guide track ( 9 ) in order to detect whether the shutter ( 1 ) is deflected from its path in the vicinity of the guide track ( 9 ).
|
