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    • 1. 发明授权
    • Electronic balance which is easily assembled, maintained, downsized and improved with respect to weighing performance, and method for manufacturing the same
    • 相对于称重性能而容易组装,维护,小型化和改进的电子天平及其制造方法
    • US06693245B2
    • 2004-02-17
    • US09957847
    • 2001-09-21
    • Hiroaki WatabikiNorikazu MurataAkio Sakai
    • Hiroaki WatabikiNorikazu MurataAkio Sakai
    • G01G700
    • G01L1/2243G01G21/244Y10T29/49004
    • A Roberval's mechanism and a lever are configured separately. To the Roberval's mechanism, a lever housing section is formed for inserting the lever in the longitudinal direction and enabling the lever to be located between a pair of the upper and the lower Roberval's sections. To the other end of the lever, a section extending outwards beyond the lever housing section is equipped. A balance driving portion are mounted to the section equipped to the other end of the lever and extending outwards. The lever block is situated to extend through a hollowed out section of the fixed end of the Roberval load block. During manufacture, the lever is formed from a separate piece that has temporary bridges formed to maintain the fixed section and the mobile sections relatively immobile so that the spring sections are protected during assembly. After the lever is connected to the Roberval mechanism, the bridges are cut.
    • Roberval的机构和杠杆分别配置。 对于Roberval的机构,形成杠杆容纳部分,用于沿纵向方向插入杠杆,并且使杠杆能够位于一对上部和下部Roberval部分之间。 在杠杆的另一端,设有向外延伸超过杠杆收容部分的部分。 平衡驱动部分安装在配备到杆的另一端并向外延伸的部分上。杠杆块位于穿过Roberval装载块的固定端的中空部分。 在制造过程中,杠杆是由一个单独的零件形成的,它具有形成的临时桥梁,用于保持固定部分和移动部件相对不动,从而使弹簧部分在组装过程中受到保护。 杠杆连接到Roberval机构后,桥被切断。