| 摘要 |
The invention relates to a closure device comprising at least one concertina-folding closure (1) consisting of a series of leaves (2) hinged together at their longitudinal edges by means of hinges (3) whose axes are parallel to the central longitudinal axes of the leaves (2); at least one transverse edge of at least one leaf (2) comprising at least one supporting and guiding element (4) guided by at least one track (5), each track (5) being shared by all the supporting and guiding elements (4) on a given side of the leaves (2); said device being characterized in that each track (5) forms an upright (7) or a crossmember (12) of a frame (6) and in that this frame (6) comprises: drive means extending longitudinally in at least one track (5); at least one mechanical actuator, motor or geared-down motor (23) inside or fixed to an upright (7) or crossmember (12) of the frame (6); and transmission means for communicating the movement generated by the actuator, motor or geared-down motor (23) to the drive means. |
