公开(公告)号：US06903480B2

公开(公告)日：2005-06-07

申请号：US10778174

申请日：2004-02-17

申请人： Toshio Yamamoto ,  Shinji Santo ,  Yasuhide Ito ,  Masayuki Kuwano ,  Kazumitsu Moriya ,  Takayoshi Suzuki ,  Yoshiki Nakano

发明人： Toshio Yamamoto ,  Shinji Santo ,  Yasuhide Ito ,  Masayuki Kuwano ,  Kazumitsu Moriya ,  Takayoshi Suzuki ,  Yoshiki Nakano

IPC分类号： H02K1/14 ,  H02K1/24 ,  H02K1/30 ,  H02K3/18 ,  H02K23/04 ,  H02K23/40 ,  H02K1/18

CPC分类号： H02K1/24 ,  H02K1/148 ,  H02K1/30 ,  H02K3/18 ,  H02K23/04 ,  H02K23/40 ,  H02K2201/06

摘要： Teeth of a first core sub-part and teeth of a second core sub-part are alternately arranged in a circumferential direction. Each tooth has a tooth main body, which may include two tilted portions at two opposed circumferential ends, respectively, of the tooth main body. Each tilted portion is angled relative to a corresponding direction parallel to the axial direction of the core. Each one of the first and second core sub-parts may have fitting recesses and fitting projections, which are engaged with the fitting projections and the fitting recesses of the other one of the first and second core sub-parts. Each tapered wall surface of each fitting recess is angled relative to a corresponding direction parallel to the axial direction. Similarly, each tapered wall surface of each fitting projection is angled relative to a corresponding direction parallel to the axial direction.