| 摘要 |
An information board consisting of a box (1), actuators (2, 3, 10) inside of it and a mechanism for independent change of several adjacent displays (4) by winding up each display band around its own wind-up roll (5). In the box (1) there is at least one wind-up motor (2, 3, 23), by means of which each display band (4) can be independently rolled at least one way while the wind-up motor is coupled to a joint axle (12, 26) inside the wind-up rolls (5), the said axle containing coupling elements (16, 30) inside each wind-up roll, which elements are in their turn movable along with the axial motion of the axle (12, 26) and by means of which elements coupling with the wind-up roll (5) counterpart (15, 27) is possible, and that the box (1) comprises a mechanism consisting of a power unit (10, 23) and a leverage (8, 7), (24, 31) to move the axle (12, 26), longitudinally. |
