| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stepping motor improving a contact of a joint part of an outer yoke and an inner yoke without increasing man hours and components and having less dispersion in a motor characteristic. <P>SOLUTION: A stator 2a of a claw pole-type stepping motor 1 includes an outer yoke 3 having a pole tooth 3c and an inner yoke 4 having a pole tooth 4b. The outer yoke 3 and the inner yoke 4 are bonded at a part of a code S. The outer yoke and the inner yoke are in a position relation where an opening end portion of the outer yoke 3 projects from a part where the outer yoke and the inner yoke are bonded in an axial direction. Thus, the opening end portion of the outer yoke 3 affects the contact of the joint part of the outer yoke 3 and the inner yoke 4, and occurrence of the dispersion in the motor characteristic is suppressed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
