发明授权
US5818666A Linear drive motor apparatus for adjusting the relative position between
and second yokes of a pair of magnetic circuits
失效
线性驱动电机装置，用于调节一对磁路的第一和第二磁轭之间的相对位置
- 专利标题： Linear drive motor apparatus for adjusting the relative position between and second yokes of a pair of magnetic circuits
- 专利标题（中）： 线性驱动电机装置，用于调节一对磁路的第一和第二磁轭之间的相对位置
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申请号： US766106申请日： 1996-12-16
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公开(公告)号： US5818666A公开(公告)日： 1998-10-06
- 发明人: Masahiko Chaya
- 申请人： Masahiko Chaya
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX5-321819 19931221
- 主分类号： G11B21/02
- IPC分类号： G11B21/02 ; G11B7/085 ; G11B11/105 ; G11B21/08 ; H02K41/035
摘要：
A linear motor drive apparatus for moving a head carriage in a direction perpendicular to tracks on a recording medium includes a permanent magnet, first yoke for supporting the permanent magnet, a second yoke, and a coil fixed on the head carriage and wound around the second yoke. The permanent magnet is disposed in a direction parallel to a moving direction of the head carriage. The second yoke is disposed to be spaced apart from the permanent magnet at a predetermined interval. An adjusting mechanism is provided in the apparatus so as to adjust a relative position between the first and second yokes to adjust the predetermined interval.