| 摘要 |
PROBLEM TO BE SOLVED: To optimize the shape of the teeth of the stator of a hollow CAM, so as to cause the magnetic flux generated by a coil to act on a magnet efficiently. SOLUTION: In a CAM of hollow structure composed of one coil, each breadth (angle) A( deg.) of the teeth (4a) of its stator counterposed to the periphery of a magnet is set so as to satisfy A<(248.4/n)-58.86×(D1-D2)/(D1×π), and each axial length of the teeth of the stator is set to a length exceeding the peripheral surface of the magnet.
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