| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a head for an ultrasonic constipation-relieving device structured so that adhesion between the adhesive surface of a case and a piezoelectric vibrator adhesively fixed to the case is hard to separate even when used for a long period of time under a normal temperature environment or under an environment varied in temperature, and gaps between the case and the piezoelectric vibrator are hardly made. <P>SOLUTION: The head for an ultrasonic constipation-relieving device includes a piezoelectric vibrator in the housing part of a resin head case, and is structured as follows: the adhesive surface of the housing part to which the piezoelectric vibrator is adhesively fixed, is modified to strengthen the adhesion with an adhesive; the adhesive surface of the piezoelectric vibrator is adhesively fixed to the modified adhesive surface; the adhesive surface is modified into a polar radical one easy to cause hydrogen bonds; the piezoelectric vibrator adhesively fixed to the adhesive surface of the housing part is pressed against the adhesive surface with a pressing tool fixed to the head case; the piezoelectric vibrator is adhesively fixed to the unmodified adhesive surface; the piezoelectric vibrator is pressed against the adhesive surface with the pressing tool fixed to the head case; and the pressing tool is a ring-like one. <P>COPYRIGHT: (C)2013,JPO&INPIT |
