| 摘要 |
PURPOSE:To rigidly secure the components of a rotor by providing a keyway on the outer periphery of a rotor shaft, engaging a projection formed on a terminal board with the keyway, and engaging the projections formed on both ends of a yoke with the engaging holes of the board. CONSTITUTION:A keyway 211 which extends axially is formed on a rotor shaft 21, and a strip 241 which is engaged with the keyway 211 is formed on the inner surfaces of the two terminal boards 24. The relative displacement of circumferential direction between the terminal board 24 and the shaft 21 can be prevented by engaging the keyway 211 with the strip 241. The engaging hole 242 which extends circumferentially of the terminal board 24 is engaged with the projection 222 of a yoke 22, thereby preventing the relative displacement of circumferential direction between the terminal board 24 and the yoke 222.
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