| 摘要 |
PURPOSE:To eliminate a pawl resonance of a pole core by securing a collar extending radially of a bobbin to the pawl of the pole core. CONSTITUTION:A contact portion 3a of radial direction is formed integrally with an iron plate bobbin 3 in a rotor of an AC generator, and provided in a plurality of number at the same positions as the pawls 1a, 2a of ball cores 1, 2 having a plurality of poles. The bobbin 3, the exciting coil 4 and the cores 1, 2 are secured by knurling engagement with a shaft 5 in such a manner that the pawls 1a, 2a of the cores 1, 2 are contacted with the contact 3a of the bobbin 3 to axially press the pawls 1a, 2a. Thus, the contact 8a is secured to restrict the vibration. |
