| 摘要 |
PURPOSE: A method for coiling a rotator constituting the motor of a handpiece is provided, to improve the stability of rotation of a rotator and to increase the output power of a motor. CONSTITUTION: The method comprises the steps of coiling a coil(102) to the coil groove of a core constituting a rotator(100) several tens times at a time; hanging it on one terminal of a commutator(200) ; coiling it to the neck part; delivering the coil to the next coil groove; recoiling the coil; and coiling it to the neck part, thereby the coil coiled to a rotator gathers to the central line of a rotation axis and the eccentric behavior of a coil is prevented. Preferably the coil hanged on the several terminals of a commutator(200) is soldered to improve the electrical contact between the coil and the terminals of a commutator(200).
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