| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device capable of positioning a sensor magnet in the radial direction highly accurately while improving assemblability, shortening manufacturing time, and avoiding breakage of members. <P>SOLUTION: The driving device includes a worm wheel 13, an armature member 15 connected to the worm wheel 13 via a leaf spring 14, a rotor 17 facing the armature member 15 in the axial direction, a coil member which attracts (press-fits) the armature member 15 to the rotor 17 side by a magnetic force and drives and connects them so as to be integrally rotatable, a sensor magnet 21 fixed to the rotor 17, and a Hall IC which is arranged to face the sensor magnet 21 and detects a change of the magnetic field. The rotor 17 and the sensor magnet 21 are fixed to each other via a fixing member 20 in which a first claw portion 20d, which engages with the rotor 17 while being press-fitted to the rotor 17 in the radial direction, and a second claw portion 20e, which engages with the sensor magnet 21 while being press-fitted to the sensor magnet 21 in the radial direction, are integrally formed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
