| 摘要 |
A winding advertisement curtain on an electric winding door includes a winding unit and a cloth curtain, and the winding unit consists of an upper case, a winding shaft and a spring. The upper case is fixed on an outer surface of an upper case of an electric winding door, and the winding shaft is arranged in the upper case, possible to be counter -rotated by the spring. The cloth curtain, which has advertising patterns or words on its outer surface, has its upper end connected to the winding shaft and possible to be wound around it, and its lower end temporarily attached by sucking the lower end of the slats of the winding door. So the cloth curtain is possible to be pulled down or wound up automatically together with the slats of the winding door, and then the advertising patterns or words become visible when the cloth curtain is closed down, achieving advertising effect.
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