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    • 2. 发明申请
    • Electrophotograph developing roller and image forming device using the same
    • 电子照相显影辊和使用其的成像装置
    • US20060204286A1
    • 2006-09-14
    • US10567062
    • 2004-10-08
    • Toshio TsubotaShinji Matsuzawa
    • Toshio TsubotaShinji Matsuzawa
    • G03G15/08
    • G03G15/0818
    • An electrophotographic developing roller in which air tightness and electrical conductivity in a fit section between a cylindrical metal base body and a metal flange are satisfactory and outside diameter deflection accuracy is satisfactory; and an electrophotographic developing roller which is relatively inexpensive, excellent in mechanical rigidity, surface processability and plating film formation (corrosion resistance) and capable of being satisfied with a prescribed dimensional accuracy are provided. The electrophotographic developing roller is a developing roller having a cylindrical metal base body and a metal flange. The metal flange has a larger diameter section to be fitted in the opening end inner surface of the cylindrical metal base body and a smaller diameter section serving as a central shaft body coaxial with the cylindrical metal base body. The fit section surface of the larger diameter section before being press fitted has an uneven shape such that a maximum surface roughness Ry due to a circumferential groove formed by cutting processing is from 25 μm to 70 μm.
    • 一种电子照相显影辊,其中圆柱形金属基体和金属凸缘之间的配合部分中的气密性和导电性令人满意,外径偏转精度令人满意; 并且提供了相对便宜的机械刚度,表面加工性和镀膜形成(耐腐蚀性)并能够满足规定的尺寸精度的电子照相显影辊。 电子照相显影辊是具有圆柱形金属基体和金属凸缘的显影辊。 金属法兰具有较大直径的部分,该直径部分装配在圆筒形金属基体的开口端内表面中,较小直径的部分用作与圆柱形金属基体同轴的中心轴体。 压配合之前的较大直径部分的配合部分表面具有不均匀的形状,使得由于通过切割加工形成的周向槽而导致的最大表面粗糙度Ry为25μm至70μm。
    • 6. 发明授权
    • Electrophotograph developing roller and image forming device using the same
    • 电子照相显影辊和使用其的成像装置
    • US07450892B2
    • 2008-11-11
    • US10567062
    • 2004-10-08
    • Toshio TsubotaShinji Matsuzawa
    • Toshio TsubotaShinji Matsuzawa
    • G03G15/08
    • G03G15/0818
    • An electrophotographic developing roller in which air tightness and electrical conductivity in a fit section between a cylindrical metal base body and a metal flange are satisfactory and outside diameter deflection accuracy is satisfactory; and an electrophotographic developing roller which is relatively inexpensive, excellent in mechanical rigidity, surface processability and plating film formation (corrosion resistance) and capable of being satisfied with a prescribed dimensional accuracy are provided. The electrophotographic developing roller is a developing roller having a cylindrical metal base body and a metal flange. The metal flange has a larger diameter section to be fitted in the opening end inner surface of the cylindrical metal base body and a smaller diameter section serving as a central shaft body coaxial with the cylindrical metal base body. The fit section surface of the larger diameter section before being press fitted has an uneven shape such that a maximum surface roughness Ry due to a circumferential groove formed by cutting processing is from 25 μm to 70 μm.
    • 一种电子照相显影辊,其中圆柱形金属基体和金属凸缘之间的配合部分中的气密性和导电性令人满意,外径偏转精度令人满意; 并且提供了相对便宜的机械刚度,表面加工性和镀膜形成(耐腐蚀性)并能够满足规定的尺寸精度的电子照相显影辊。 电子照相显影辊是具有圆柱形金属基体和金属凸缘的显影辊。 金属法兰具有较大直径的部分,该直径部分装配在圆筒形金属基体的开口端内表面中,较小直径的部分用作与圆柱形金属基体同轴的中心轴体。 压配合之前的较大直径部分的配合部分表面具有不均匀的形状,使得由于通过切割加工形成的周向槽而导致的最大表面粗糙度Ry为25μm至70μm。