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1. 发明授权

US5962818A Top scale balance 失效
标题翻译：顶级平衡
公开(公告)号：US5962818A
公开(公告)日：1999-10-05
申请号：US538776
申请日：1995-10-03
申请人： Akira Komoto , Kunio Shimauchi , Kazuo Nishibayashi , Akihiro Fukai
发明人： Akira Komoto , Kunio Shimauchi , Kazuo Nishibayashi , Akihiro Fukai
IPC分类号： G01G21/24 , G01G3/08 , G01G3/14 , G01G21/12
CPC分类号： G01G21/244
摘要： In a top scale balance which has a Roberval's chain 10 and a load weight transmitting lever 30 and in which a movable post 13 of the Roberval's chain 10 is connected to a point of force 32 of the lever 30 through an elastic connection fulcrum 51, a horizontal member 12 nearer to the elastic connection fulcrum 51, out of upper and lower horizontal members 11, 12 of the Roberval's chain 10, is greater in rigidity than the other horizontal member 11. Alternately, the upper and lower horizontal members 11, 12 are equal in rigidity and the elastic connection fulcrum 51 is positioned, in the vertical direction, at the center between the upper and lower horizontal members 11, 12. Such an arrangement prevents or reduces the movement of the elastic connection fulcrum 51 in the back-and-forth direction due to an offset placed load. Thus, even though the top scale balance is made in a compact and thin design with the lever ratio increased, the top scale balance is high in precision with a less offset position error.
摘要翻译：在具有罗伯瓦尔链条10和负载重量传递杆30的顶部秤平衡中，罗伯瓦尔链条10的可动柱13通过弹性连接支点51连接到杠杆30的力点32，在Roberval链条10的上部和下部水平部件11,12之间更靠近弹性连接支点51的水平部件12的刚度比其他水平部件11的刚度大。或者，上部和下部水平部件11,12 刚性相等，并且弹性连接支点51在垂直方向上位于上下水平构件11,12之间的中心。这种布置防止或减小了弹性连接支点51在背部和背面中的运动由于偏移放置负载的方向。因此，尽管最大尺寸的平衡是以杠杆比率增加的紧凑而薄的设计进行的，但是由于偏移位置误差较小，所以顶部秤的精度高。

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