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1. 发明申请

US20090243600A1 ROTATION SENSOR UNIT 有权
标题翻译：旋转传感器单元
公开(公告)号：US20090243600A1
公开(公告)日：2009-10-01
申请号：US12408867
申请日：2009-03-23
申请人： Shoji ITOMI
发明人： Shoji ITOMI
IPC分类号： G01B7/30
CPC分类号： G01D5/145 , F16C41/007 , G01P3/443 , G01P3/487
摘要： A rotation sensor unit includes an encoder, a holder radially positioning the encoder, and a rolling bearing having an inner race. The rolling bearing is fitted around the shaft so that one end of the inner diameter surface of the inner race protrudes from the end of the outer diameter surface of the shaft. The holder has a screwed portion fitted in the inner race, positioning the encoder coaxially with the shaft. The holder is non-magnetic, having a retaining portion in which the encoder is axially pressed. The encoder is a plastic magnet, with protrusions and recesses formed integrally on its outer diameter surface and biting the inner diameter surface of the retaining portion to prevent the encoder from rotating. With the holder screwed to the shaft, the encoder is disposed between the magnetism detection element and the one end of the shaft.
摘要翻译：旋转传感器单元包括编码器，径向定位编码器的保持器和具有内圈的滚动轴承。滚动轴承围绕轴安装，使得内圈的内径表面的一端从轴的外径表面的端部突出。保持器具有嵌合在内座圈中的螺纹部分，将编码器与轴同轴地定位。保持器是非磁性的，具有保持部分，编码器被轴向按压在该保持部分中。编码器是塑料磁体，其突出部和凹部整体地形成在其外径表面上并咬住保持部分的内径表面以防止编码器旋转。当保持器拧到轴上时，编码器设置在磁检测元件和轴的一端之间。

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