| 摘要 |
<p>PURPOSE:To provide the two-way free rotation function with a one-way clutch. CONSTITUTION:A roller 18 is arranged at the fixed twist angle against the axial direction of inner and outer rings 12, 14 in a gap 16 between the inner ring 12 and the outer ring 14 movable in the axial direction against it, the outer ring 14 is excited in the direction narrowing the gap 16 by a spring 32, the rotation of the inner ring 12 in one direction is torque-transmitted to the outer ring 14, and the inner ring 12 is freely rotated against the outer ring 14 in the other direction. When the outer ring 14 is axially excited in the direction expanding the gap 16 by the attraction between an armature 34 and an electromagnet 24, the inner ring 12 can be freely rotated in two directions against the outer ring 14. An outer ring 48 may be excited in the direction narrowing a gap 54 by the attraction between an electromagnet 46 and an armature 40, and the outer ring 48 may be excited in the direction expanding the gap 52 by a spring 44.</p> |
