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1. 发明授权

US5673504A Tape display device 失效
标题翻译：磁带显示设备
公开(公告)号：US5673504A
公开(公告)日：1997-10-07
申请号：US343524
申请日：1995-06-13
申请人： Frank Charles Brown
发明人： Frank Charles Brown
IPC分类号： B65H23/08 , B65H23/18 , G09F11/29 , G09F11/18
CPC分类号： B65H23/1806 , B65H23/085 , G09F11/29
摘要： A tape display device comprises a housing supporting a pair of parallel rollers between which a tape is adapted to be wound back and forth to display different visual information contained on the tape. The rollers are driven by a continuous belt via an electric motor. One of the rollers is a tension roller which maintains tension in the tape as it is wound back and forth between the rollers. The tension roller consists of a cylinder having end caps for providing bearing surfaces which bear on respective bushes in the housing to provide rotational mounting of the roller. A drive pinion on the outside of the housing has a stub-axle which extends through the bush and end cap and into the cylinder. A spiral tension spring is attached between the end of the stub-axle and a flange of the end cap. The spring is located within the cylinder and allows relative movement between the cylinder and pinion and maintains tension in the tape as the two rollers rotate in synchronism and the diameter of the tape on each roller varies.
摘要翻译： PCT No.PCT / AU93 / 00492 Sec。 371日期：1995年6月13日 102（e）日期1995年6月13日PCT 1993年9月24日PCT公布。公开号WO94 / 20945 日期1994年9月15日一种磁带显示装置包括支撑一对平行辊的壳体，在该平行辊之间，磁带适于前后卷绕以显示包含在磁带上的不同视觉信息。辊子由连续的带通过电动机驱动。其中一个辊是张紧辊，当辊在辊之间来回缠绕时，其保持带中的张力。张紧辊由具有端盖的圆柱体组成，其具有用于提供承载在壳体中的相应衬套上的轴承表面以提供辊的旋转安装。壳体外侧的驱动小齿轮具有一个短轴，该短轴延伸穿过衬套和端盖并进入气缸。螺旋拉伸弹簧安装在短轴的端部和端盖的凸缘之间。弹簧位于气缸内并且允许气缸和小齿轮之间的相对运动，并且当两个辊同步旋转并且每个辊上的带的直径变化时，保持带中的张力。

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