Patent Application
20070186454
1. Field of the Invention
This invention relates to an electric winding door, particularly to one added with a winding advertisement curtain for propagating advertisement for something.
2. Description of the Prior Art
Nowadays various kinds of advertisement boards are used by stores along busy streets, especially during business time, for drawing attentions of passersby. Among them, many electric winding doors of stores may be coated with advertising patterns or words to achieve advertising effect during the closed time.
However, the conventional ways of coating advertisement patterns or words are not so ideal, because the drawn or painted patterns or words may be gradually peeled off by wining up and down the electric winging door. Further, if the old painted patterns or words are to be replaced with new patterns or words, they have to be erased off and painted anew with new patterns or words, troublesome to work it out. Moreover, an electric winding door has an uneven surface so the drawn or painted patterns or words may not be seen quite clear. Or in case an advertisement printed on a paper is adhered on an electric winding door, its replacement is also not simple, with an old one being removed first and at the same time, its effect is reduced a lot owing to the rough surface of an electric winding door. In addition, the adhered advertisement paper may be bruised or damaged by winding-up-and-down movement of the electric winding door.
The feature of the invention is a winding unit for winding up a cloth curtain with an advertising patterns or words printed or pained on its outer surface. The winding unit consists of an upper case and a winding shaft arranged in the upper case for winding up the cloth curtain or pulled down with the resilience of a spring, together with the winding door electrically wound up or pulled down. The upper case of the winding unit is fixed on an outer surface of an upper case of an electric advertisement door, and the lower end of the cloth curtain is fixed temporarily with the lower end of the slats of the winding door. So the cloth curtain can be wound up by the resilience of the spring compressed synchronously together with the winding door wound up electrically, or pulled down together with the winding door pulled down electrically. So the advertising patterns or words on the cloth curtain is visible in case the cloth curtain is pulled down together with the winding door closed down, achieving the advertising effect. In addition, the cloth curtain is hidden in the upper case when not in use, never damaged or damaging the color or the patterns on the outer surface of the winding door.
This invention will be better understood by referring to the accompanying drawings, wherein:
A first preferred embodiment of a winding advertisement curtain 20 on an electric winding door in the present invention, as shown in
The electric winding door 10 has almost the same structure of a conventional one, composed of an upper case 11, a wind shaft 12 arranged in the upper case 11, and an electric motor (not shown) driving the wind shaft 12 to rotate clockwise and counterclockwise, a plurality of slats 13 connected continually with each other and then possible to be wound around the wind shaft 12 to open the winding door 10.
The winding advertisement curtain 20 is composed of a winding unit 21, a cloth curtain 22 and a position member 23.
The winding unit 21 consists of an upper case 211, a winding shaft 212 and a coiled spring 213, fixed on an outer surface of the upper case 11 of the electric winding door 10, with the winding shaft 212 contained in the upper case 211, and with the coiled spring 213 fitted around the winding shaft 212 and having its inner end fixed with the winding shaft 212 and positioned between the winding shaft 212 and the upper case 211. When the winding shaft 212 is rotated in a preset direction, the coiled spring 213 may be rotated at the same time to become tighter and tighter to cause some resilience to counter-rotate the winding shaft 212 if the winding shaft is no longer pulled.
The cloth curtain 22 has a proper size to hide the electric winding door 10, printed with, coated with or painted with an advertising pattern or words on its outer surface, having its upper end fixed tightly on the winding shaft 212 and a horizontal position member 23 such as a magnetic rod or the like for sucking the bottom end of the slats 13 made of steel.
As to the use of the winding advertisement curtain 20, as shown in
On the contrary, when the winding door 10 is electrically wound up to open, the closed-down cloth curtain 22 is also wound up around the winding shaft 212 by the resilience of the coiled spring 213 and at the same time synchronously together with the winding door 10 pulled up electrically.
Further,
The invention has the following advantages, as can be understood from the foresaid description.
While the preferred embodiments of the invention have been described above, it will be better understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
