| 摘要 |
PURPOSE:To facilitate positioning by movably installing a revolution detecting member on a board with a stator into a slot in the radial direction so that the revolution detecting member faces the FG magnet of a rotor by the leaf spring of a leg section and elastically holding the revolution detecting member in the direction of rotation. CONSTITUTION:A revolution detecting member 11 is mounted at a location corresponding to the FG magnet 10 of a rotor 7 on a flexible board 1 with a stator 2. A slot 13 in the radial direction is formed to the board 1, leaf springs 12 shaping the leg section of the holder 11a of the detecting member 11 is inserted into the slot 13, and a space with the FG magnet 10 is adjusted. The revolution detecting member 11 is engaged elastically by the springs 12 in the direction of rotation of the rotor 2, and the holder 11a and the flexible board 1 are soldered 14 and fixed. Accordingly, the detecting member 11 is positioned easily at low cost. |
