| 摘要 |
<p>The lock has a rotor assembled in two stators (7) in rotating manner. One of the stators and an arm (38) comprise a magnetic tooth (33b) opposite to a magnetic material arch so as to create an air-gap through which a magnetic circuit connecting two opposite poles of a magnet (30) is looped. The tooth and the arch are formed so that a surface of faces of the arch and the tooth is increased in a direction parallel to a rotation axis of the arm when the arm turns from its home position toward memorizing position.</p> |
