| 摘要 |
A capstan motor for a magnetic recording and reproducing apparatus comprises a stator including a coil; a rotor having a magnet to correspond the coil and rotated; and a capstan shaft rotated integrally with the rotor and installed so that one side of the capstan shaft is cohered with a pinch roller taking a tape therebetween to drive the tape with the pinch roller, wherein the magnet of a predetermined shape is provided to apply magnetic force of the magnet eccentrically for an electromagnetic force generated on the coil so that a predetermined thrust can be applied to the capstan shaft toward one direction between upper and lower directions of the shaft direction, therefore, a constant thrust in length direction of the capstan shaft is generated to minimize vibration of the tape, and thereby reliability for reproducing and recording of the magnetic recording and reproducing apparatus can be improved.
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