LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE DEVICE

• Main Authors: SHIBATA KAZUAKI, KAMIMURA TAKAYUKI, OSAMI TADANOBU, KOMORI YUKI, KATO MASATAKA
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

To provide a liquid discharge head which can control a liquid discharge amount, is good in responsiveness of discharge, and is high in a degree of freedom of selection of a material of a discharge port formation member.SOLUTION: A liquid discharge head 1 has: a discharge port 4 for discharging a liquid; a pressure chamber 13 connected to the discharge port 4; a piezoelectric actuator 16 arranged corresponding to the pressure chamber 13; and a common liquid chamber 11 connected to the pressure chamber 13. A liquid passage to the discharge port 4 through the pressure chamber 13 from the common liquid chamber 11 is configured. A diaphragm 9 is provided between the pressure chamber 13 and a discharge port formation member 3 formed with the discharge port 4, and the piezoelectric actuator 16 is arranged on the diaphragm 9.SELECTED DRAWING: Figure 1 【課題】液体の吐出量を制御でき、かつ吐出応答性が良好で、吐出口形成部材の材料の選択の自由度が高い液体吐出ヘッドを提供する。【解決手段】液体吐出ヘッド１が、液体を吐出する吐出口４と、吐出口４に接続されている圧力室１３と、圧力室１３に対応して配置されている圧電アクチュエータ１６と、圧力室１３に接続されている共通液室１１と、を有する。共通液室１１から圧力室１３を介して吐出口４に至る液体流路が構成されている。圧力室１３と、吐出口４が形成されている吐出口形成部材３との間に、振動板９が設けられており、振動板９に圧電アクチュエータ１６が配置されている。【選択図】図１