DROPLET DISCHARGE HEAD, DROPLET DISCHARGE UNIT, AND DROPLET DISCHARGE DEVICE

To provide a droplet discharge head which inhibits occurrence of local stress concentration on a damper caused by a filler in an adhesive to inhibit damage to the damper.SOLUTION: A droplet discharge head 2 includes: a damper 66 which reduces vibration energy; a damper holding substrate 65 to which the damper 66 is joined and which has a space 68 in which the damper 66 may vibrate; and a piezoelectric element holding substrate 70 provided at a side opposite to the damper holding substrate 65 of the damper 66 and having a recessed part which houses a piezoelectric element 40 and a space 58 in which the damper 66 may vibrate; and a leg part 3 which is integrally provided with the damper 66 between the damper 66 and the piezoelectric element holding substrate 70 and joined to the piezoelectric element holding substrate 70 by an adhesive 90 containing a filler 91.SELECTED DRAWING: Figure 11 【課題】接着剤中のフィラによるダンパへの局所的な応力集中の発生を抑制し、ダンパの破損を抑制可能な液滴吐出ヘッドを提供する。【解決手段】振動エネルギーを軽減するダンパ６６と、ダンパ６６が接合されダンパ６６が振動可能な空間６８を有するダンパ保持基板６５と、ダンパ６６のダンパ保持基板６５とは反対側に設けられ、圧電素子４０を収容する凹部及びダンパ６６が振動可能な空間５８を有する圧電素子保持基板７０と、ダンパ６６と圧電素子保持基板７０との間にダンパ６６と一体的に設けられ、フィラ９１を含む接着剤９０により圧電素子保持基板７０と接合された脚部３とを有する液滴吐出ヘッド２。【選択図】図１１