发明申请
US20070230842A1 Thrust plate, method of manufacturing thereof, motor using the thrust plate, and the data storage disk drive using the motor
有权
推力板，其制造方法，使用推力板的电动机和使用电动机的数据存储盘驱动器
- 专利标题： Thrust plate, method of manufacturing thereof, motor using the thrust plate, and the data storage disk drive using the motor
- 专利标题（中）： 推力板，其制造方法，使用推力板的电动机和使用电动机的数据存储盘驱动器
-
申请号： US11730431申请日： 2007-04-02
-
公开(公告)号： US20070230842A1公开(公告)日： 2007-10-04
- 发明人: Takehito Tamaoka , Ryouji Sugiura
- 申请人： Takehito Tamaoka , Ryouji Sugiura
- 申请人地址： JP Kyoto
- 专利权人： NIDEC CORPORATION
- 当前专利权人： NIDEC CORPORATION
- 当前专利权人地址： JP Kyoto
- 优先权： JP2006-101412 20060403
- 主分类号： F16C32/06
- IPC分类号： F16C32/06
摘要：
A plate-like material is pressed and a middle concave portion centered on a center axis is formed in one axial surface of the material. Likely, an annular concave portion centered on a center axis and radially outwardly arranged is formed in one and/or the other axial surface of the material. The material is then cut along a radially outer rim of the middle concave portion, and between a radially outer rim and a radially inner rim of the annular concave portion. In this way, a thrust plate having indented portions at radially inside and outside portion of the one and/or the other axial surface thereof is manufactured. A burr formed in press working is accommodate within the indented portion and does not axially protrude from the one and/or the other axial surface of the thrust plate.