| 摘要 |
PURPOSE:To prevent a vibrator from being damaged, by installing a stopper checking any vibrations of the vibrator in the case where these vibrations of the vibrator become abnormal ones. CONSTITUTION:A solenoid coil 1, a bobbin 2, a yoke core 3 and two yoke plate cores 4a and 4b are all held between side plates 5a and 5b. Such parts that are projected to the inward of these side plates 5a and 5b serve as stoppers 5c and 5d. When abnormal vibrations of a vibrator 10 occur, magnet shoes 8d and 8a are attracted to these yoke plate cores 4a and 4b, while the right sidepiece of the magnet shoe 8d and the left sidepiece of the magnet shoe 8a both are latched by these stoppers 5c and 5d, thus vibrations are damped. Accordingly, any damage to the vibrator is preventable. |
