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1. 发明授权

US06552451B1 Stepping motor, printing device using it or paper feeding device, and printer 有权
标题翻译：步进电机，使用打印装置或送纸装置，以及打印机
公开(公告)号：US06552451B1
公开(公告)日：2003-04-22
申请号：US09424364
申请日：2000-03-02
申请人： Akihiko Ikegami , Yoshikazu Koike
发明人： Akihiko Ikegami , Yoshikazu Koike
IPC分类号： H02K3704
CPC分类号： H02K37/18
摘要： A stepping motor (1) which has rotor pole teeth (31) disposed with a predetermined pitch (P1) on a rotor (3) and stator pole teeth (22) formed on a stator pole (21) so to oppose the rotor pole teeth (31), wherein the stator poles (21) are provided with n sets of tooth groups (23) consisting of the stator pole teeth (22) in the number of m, a pitch P2 of the stator pole teeth (22) in the tooth groups (23) is in the relation P2≠P1, and a pitch P3 of the tooth groups (23) is in the relations P3≠m·P1 and P3≠m·P2 (where, P1, P2 and P3 denote an electrical angle, and m and n are integers of 2 or more), and a three-phase stepping motor in which the fourth harmonic and the sixth harmonic are decreased.
摘要翻译：一种步进电机（1），其具有转子（3）上以预定间距（P1）设置的转子极齿（31）和形成在定子极（21）上的定子极齿（22），以与转子极齿（31），其中所述定子极（21）设置有由m个定子极齿（22）组成的n组齿组（23），所述定子极齿（22）的间距P2在所述定子极齿齿组（23）处于P2

2. 发明授权

US06249066B1 Stepping motor 有权
标题翻译：步进电机
公开(公告)号：US06249066B1
公开(公告)日：2001-06-19
申请号：US09468484
申请日：1999-12-16
申请人： Akihiko Ikegami , Yoshikazu Koike
发明人： Akihiko Ikegami , Yoshikazu Koike
IPC分类号： H02K3704
CPC分类号： H02K37/18 , H02K5/15 , H02K5/161 , H02K5/24
摘要： A stepping motor includes a pair of internally fitted members 103a and 103b, one disposed at each end portion of a stator 101 in an axial direction thereof. Each internally fitted member 103a and 103b includes a first fitted portion 102 internally fitted to an inner peripheral surface of the corresponding end portion of the stator 101. The stator 101 is sandwiched in a radial direction thereof by the first fitted portions 102 and second fitted portions 117 of a pair of brackets 106a and 106b, one externally fitted to the outer peripheral surface of each end portion of the stator 101 in the axial direction thereof. The internally fitted members 103a and 103b and the brackets 106a and 106b are separately formed so that the brackets 106a and 106b can be freely positioned with respective to the respective internally fitted members 103a and 103b in a radial direction thereof.
摘要翻译：步进电动机包括一对内部安装构件103a和103b，其一个设置在定子101的轴向方向的每个端部处。每个内部装配构件103a和103b包括内部配合到定子101的相应端部的内周表面的第一装配部分102.定子101通过第一装配部分102和第二装配部分沿其径向方向夹持一对支架106a和106b中的一个，一个外部装配到定子101的每个端部的外周面的轴向。内部安装构件103a和103b以及支架106a和106b分开地形成，使得支架106a和106b能够相对于各自的内部装配构件103a和103b沿其径向自由定位。

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