| 摘要 |
<p>Rolling sign (1) comprising at least two cylindrical rolls (2, 3) placed at a distance from one another on a sign length secured to the rolls. Each roll (2, 3) is a hollow cylinder and comprises a spring device mounted herein as well as an electromotor mounted in at least one of the rolls. For illumination purposes the sign may comprise a light source (8) with a reflector (6).</p> |
