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1. 发明授权

US5003717A Changeable information scroll sign 失效
标题翻译：可变信息滚动标志
公开(公告)号：US5003717A
公开(公告)日：1991-04-02
申请号：US408993
申请日：1989-09-18
申请人： Charles E. Trame , Robert A. Karsten , Michael W. Hobach
发明人： Charles E. Trame , Robert A. Karsten , Michael W. Hobach
IPC分类号： G09F11/00 , G09F11/29 , G09F11/295
CPC分类号： G09F11/29 , G09F11/295 , G09F2011/0018
摘要： A sign composed of modules mounted adjacent each other. Each module having laterally spaced apart side wall members and a pair of longitudinally spaced apart parallel rollers mounted between the side wall members for rotating. Opposite end portions of a web containing a series of indicia are wound on the rollers, respectively, such that a selected indicia can be positioned in viewing position by winding web on one roller while unwinding it on the other roller. There are motor means mounted inside of each of the rollers for rotating the rollers to translate the web. In the depicted embodiment, an electric motor means is mounted inside of one of the rollers and a constant force spring motor means is mounted on the inside of the other of the rollers. The motors oppose each other in such a way that the web is maintained taut between them.
摘要翻译：由彼此相邻安装的模块组成的标志。每个模块具有侧向间隔开的侧壁构件和安装在侧壁构件之间的一对纵向间隔开的平行辊，用于旋转。包含一系列标记的幅材的相对端部分别缠绕在辊上，使得通过在一个辊上缠绕卷筒而将选定的标记放置在观察位置，同时在另一个辊上展开。安装在每个辊子内部的电动机装置用于旋转辊子以平移纸幅。在所示的实施例中，电动机装置安装在一个辊子的内部，并且恒定力弹簧电动机装置安装在另一个辊子的内部。电机以这样一种方式相互对抗，使得网之间保持紧固。

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