| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a permanent magnet type brake device which can adjust brake torque and easily release brake action. SOLUTION: A magnetic material ring 20, engaged with a permanent magnet 8 between its both polarities of an armature 16, is provided, the magnetic material ring 20 is divided in a circumferential direction, and divided each location 20A, 20B is moved in an axial line orthogonal direction of a rotary shaft 5, so that an engaging area relating to the permanent magnet 8 can be adjusted.</p> |
