| 摘要 |
PURPOSE:To obtain a miniature motor easy to assemble by a construction wherein yokes are arranged almost C-shaped in pair, and projections and concave grooves with which to mount them on a pair of end brackets are provided symmetrically both vertically and horizontally. CONSTITUTION:A pair of opposite walls 6A, 6B for positioning of a circular arc field magnet 19 are provided on opposite insides of a pair of end brackets 1A, 1B provided with a bearing for a rotor 13, and a pair of engaging grooves 7A, 7B are formed in the direction crossing rectangularly to the opposite direction. A pair of yoke plates 20 almost C-shaped are provided on the outer periphery of the field magnet 19, and both-end both-side projections 21C, 21D and both-end concave grooves 22C, 22D are formed on each yoke plate 20 symmetrically both vertically and horizontally. Then, both-end both-side projections 21C, 21D of the yoke plates 20 are inserted in the engaging grooves 7B, 7A of the end brackets 1A, 1B, both-end concave grooves 22C, 22D are fitted to projections 8B, 8A provided on the opposite walls 6B, 6A and thus the end brackets 1A, 1B and each yoke plate 20 are coupled. |
