| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent foreign materials such as toner from intruding into an electromagnetic clutch. SOLUTION: The electromagnetic clutch is provided with a field core 2 in which an electromagnetic coil 3 externally fitted to a cylindrical shaft 5 housing a rotary shaft is set up, a power transmission gear 10 externally fitted on the cylindrical shaft 5, and an armature cover 14 installed between the gear 10 and the field core 2 for preventing foreign materials from intruding into the electromagnetic clutch 1 from the gap between the gear 10 provided between the gear 10 and the field core 2 and the field core 2.</p> |
