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    • 2. 发明申请
    • INK JET HEAD
    • 墨水喷头
    • WO1994001284A1
    • 1994-01-20
    • PCT/JP1993000921
    • 1993-07-05
    • CITIZEN WATCH CO., LTD.KIGAWA, KeisukeIKEDA, TomooUGA, MasayasuNAGASHIMA, TakayukiHIRAISHI, Hisato
    • CITIZEN WATCH CO., LTD.
    • B41J02/045
    • B41J2/14209B41J2002/14379
    • An ink jet head for a drop on-demand type ink jet printer. The driving electrodes can be easily and reliably connected to the external electrodes. Further, rotational action of the piezoelectric element during the driving is suppressed. Between the driving electrodes having insulating film and the external electrodes, there is provided an electrical connection material containing conductive grains which are harder than the insulating film and has a particle diameter larger than the thickness of the film. Recesses are provided in the bottoms of the grooves of the piezoelectric elements which function as ink chambers and pressure chambers. These recesses are formed by line segments connected at least by two line segments or line segments connected by one curved line. Part of the line segments which bring about the rotation of the piezoelectric elements is transformed into the component which establishes a shearing mode.
    • 用于按需喷墨打印机的喷墨头。 驱动电极可以容易且可靠地连接到外部电极。 此外,压电元件在驱动期间的旋转动作被抑制。 在具有绝缘膜的驱动电极和外部电极之间,设置有包含比绝缘膜硬的导电颗粒的电连接材料,其直径大于膜的厚度。 在作为墨室和压力室的压电元件的凹槽的底部设有凹槽。 这些凹部由至少由两条线段连接的线段或由一条曲线连接的线段形成。 导致压电元件的旋转的线段的一部分被转换成建立剪切模式的部件。