| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive unit with a durable non-contact breaking unit (Hemmung) operated in a simple way. SOLUTION: In a drive unit 2, a magnetic fitting mechanism 4 has a boss 11 with a fitting tooth 12 made of magnetic materials 13, 14 for fitting components in desired position, a permanent magnet circuit 15 with north and south poles for forming reset torque, and a magnetic coil 18. When a current is carried at the magnetic coil 18, the fitting function is made neutral, and the permanent magnet fitting device is operated without mechanical wear. |
