| 摘要 |
<p>A plurality of permanent magnets (4) are disposed with gaps between the adjacent magnets along the inner peripheral surface of a yoke (2) of a stator for a magneto D.C. motor. In gaps between two magnets are provided retainers (3) each of which is made of an elastic member and consists of one surface (11) fixed on the yoke, two surfaces (12, 13) extending in the central axial direction of the D.C. motor along the side surfaces (71, 72) of the magnets opposite to each other on the inner peripheral surface of the yoke and two end portions (32) connecting these two surfaces (12, 13). Those two surfaces (12, 13) and end portions (32) are kept in contact with the permanent magnet from three directions, namely from each of the side surfaces (71, 72) of the permanent magnet and from each of the end surfaces (81, 82) of the magnets adjacent to said each side surface (71,72) extending in the central axial direction whereby the permanent magnets are pressed and clamped so as to be secured to the yoke.</p> |
