| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear motor, in which the shape of the magnetic pole face of a pole tooth located at both ends of a plurality of the pole teeth can be easily made into a shape suitable for reducing cogging force. SOLUTION: The magnetic pole face 19a of the pole tooth 15A located on both ends of a plurality of the pole teeth 15 is composed of an arcuate curved face which is curved so that a gap dimension in-between a magnetic pole row 7 becomes larger, as each is separated from the other pole teeth 15B which are respectively adjacent to each other. Through-holes 23A, 23B, which are extended in the lamination direction of a steel plate 10 in the vicinity of the magnetic pole face 19a, are made in the pole tooth 15A. A magnetic body, which is smaller than the thickness dimension in the lamination direction of the steel plate 10, is arranged in the through-holes 23A, 23B so as to leave clearances at both ends of the through-holes 23A, 23B. COPYRIGHT: (C)2005,JPO&NCIPI
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