| 摘要 |
PURPOSE:To obtain stable holding strength by forming a plurality of notches to the collar section of a holding case for a field coil and plastically coupling the holding case for the field coil with the inside diameter section of an armature through a coupling member. CONSTITUTION:The holding case 2 for the field coil incorporates the field coil 1, and contact sections between the case 2 and the coil 1 have collar sections 3. A plurality of the notches 2A are formed to the collar sections 3. The coupling member 4 is inserted between the collar section 3 of the holding case 2 for the field coil and the armature 5, and pushed, thus plastically fluidizing the coupling member 4. The coupling member fluidized plastically flows in among the notches 2A and the core of the armature 5. Accordingly, the notches 2A are filled with the coupling member 4 while the inside of the slot of the armature 5 is also filled with the member 4. |
