| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate assembling and removal of a piezoelectric oscillator for a case by holding the piezoelectric oscillator to a case member by magnetic attraction force. SOLUTION: A magnet 6 is embedded in the center of the bottom 2a of a case member 2, and a piezoelectric oscillator 5 forming to laminate a metal oscillation plate 7, a piezoelectric element 8 and a magnetic member 9 is mounted on a step part 2b formed on the inner wall face. By this constitution, a magnetic attraction act between the magnet 6 and a magnetic member 9, since the metal oscillation plate 7 is pressed on the case member 2, the piezoelectric oscillator 5 is stabilized to be fixed to the case member 2. When stronger magnetic attraction force than the magnetic attraction force acting between the magnet 6 and the magnetic member 9 by using a separately prepared magnet in the case where the piezoelectric oscillator 5 is removed from the step part 2b, the piezoelectric oscillator can be easily removed without damaging the case member 2.</p> |
