A system for closing an opening , the system comprising - a scissor-type guide comprising a fixed first end and a free, second end (20") which may be extended away from and retracted towards the first end in a first direction (D 1 ); - a tilt bracket ; - a plurality of lamellae , each lamella having an elongate plate shape extending in a second direction (D 2 ) perpendicular to said first direction (D 1 ), each lamella being rotatably connected to said scissor-type guide , and the lamellae being guidable by the scissor-type guide in the first direction (D 1 ) between - a retracted position adjacent to said fixed, first end of the scissor-type guide , and - an extended position, where said lamellae are distributed along the fixed distance between said first end of the scissor-type guide and the tilt bracket ; - a conveyor configured to extract and contract the scissor type guide in said first direction (D 1 ); - a tilt rail configured for tilting said lamella between an open state and a closed state; - a curved first guide surface formed in or on said tilt bracket ; and - a tilt lever connected to said free, second end (20") of the scissor-type guide , to the tilt rail and to the conveyor ; characterised in that - the tilt bracket is arranged spaced apart from the first end at a fixed distance in the first direction (D 1 ); - the tilt lever comprises a guide member ; and - said system is configured for bringing the guide member into contact with the curved guide surface , whereby the guide member engages the curved guide surface and is translated in a third direction (D 3 ), which is perpendicular to both said first direction (D 1 ) and said second direction (D 2 ), such that the tilt lever is rotated and translates the tilt rail in the third direction to rotate the lamellae . - a scissor-type guide comprising a fixed first end and a free, second end (20") which may be extended away from and retracted towards the first end in a first direction (D 1 ); - a tilt bracket ; - a plurality of lamellae , each lamella having an elongate plate shape extending in a second direction (D 2 ) perpendicular to said first direction (D 1 ), each lamella being rotatably connected to said scissor-type guide , and the lamellae being guidable by the scissor-type guide in the first direction (D 1 ) between - a retracted position adjacent to said fixed, first end of the scissor-type guide , and - an extended position, where said lamellae are distributed along the fixed distance between said first end of the scissor-type guide and the tilt bracket ; - a retracted position adjacent to said fixed, first end of the scissor-type guide , and - an extended position, where said lamellae are distributed along the fixed distance between said first end of the scissor-type guide and the tilt bracket ; - a conveyor configured to extract and contract the scissor type guide in said first direction (D 1 ); - a tilt rail configured for tilting said lamella between an open state and a closed state; - a curved first guide surface formed in or on said tilt bracket ; and - a tilt lever connected to said free, second end (20") of the scissor-type guide , to the tilt rail and to the conveyor ; - the tilt bracket is arranged spaced apart from the first end at a fixed distance in the first direction (D 1 ); - the tilt lever comprises a guide member ; and - said system is configured for bringing the guide member into contact with the curved guide surface , whereby the guide member engages the curved guide surface and is translated in a third direction (D 3 ), which is perpendicular to both said first direction (D 1 ) and said second direction (D 2 ), such that the tilt lever is rotated and translates the tilt rail in the third direction to rotate the lamellae . <EOS>