| 摘要 |
PROBLEM TO BE SOLVED: To prevent the intrusion of foreign matters into a moving range of a movable member 55, in a clutch mechanism.SOLUTION: When a control device 6 starts electric conduction to an electromagnetic coil 53 in a first direction, a magnetic force of a non-attraction magnetic circuit MCb becomes larger than a magnetic force of an attraction magnetic circuit MCa by an electromagnetic force of the electromagnetic coil 53. Following this, a movable member 55 is moved to a second position side from a first position side by the magnetic force generated by the non-attraction magnetic circuit MCb. On the other hand, when the control device 6 carries electricity to the electromagnetic coil 53 in a second direction, the magnetic force of the attraction magnetic circuit MCa becomes larger than the magnetic force of the non-attraction magnetic circuit MCb by the electromagnetic force of the electromagnetic coil 53. By this, the movable member 55 is moved to the first position side from the second position side by the magnetic force generated by the attraction magnetic circuit MCa. A cover member 54 is formed so as to cover a moving range of the movable member 55. |
