| 摘要 |
PROBLEM TO BE SOLVED: To enhance the productivity while reducing the cost of a piezoelectric element and its base member in an ink jet head. SOLUTION: A metallic member is employed in a base member 4 being bonded with a piezoelectric element 5 for driving a diaphragm 3 and an anaerobic adhesive starting polymerization by metal ions is employed for bonding the base member 4 and the piezoelectric element 5. In order to prevent the adhesive from creeping up through the gap between the piezoelectric element arrays, a groove for releasing the adhesive is made in the base member 4 in correspondence with the gap position. In order to prevent the adhesive from creeping up to the outer electrode face of the piezoelectric element, side face of the base member 4 is located on the inside of the outer electrode face of the piezoelectric element and a level difference is provided between both faces. COPYRIGHT: (C)2003,JPO
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