LIQUID DISCHARGE DEVICE

• Main Author: KATAYAMA SHINGO
• Format: Patent
• Language: English; Japanese
• Published: 11.05.2022
• 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 device capable of increasing a life while discharging liquid with high viscosity.SOLUTION: A liquid discharge device 10 includes: a channel forming body 22 that is formed with a nozzle 21 discharging liquid, and a pressure chamber 29 communicated with the nozzle 21; a vibration plate 24 that is laminated on the channel forming body 22, and has a coating surface 24a covering the pressure chamber 29 and an opposite surface 24b on the opposite side to the coating surface 24a; an actuator 23 that has an abutting surface 23a opposite to the pressure chamber 29 across the vibration plate 24, and displaces in an intersecting direction intersecting the opposite surface 24b between a retracting position where the abutting surface 23a separates from the vibration plate 24 and an advancing position where the abutting surface 23a abuts on the vibration plate 24; and a first protection film 26 that covers an area opposite to the abutting surface 23a on the opposite surface 24b.SELECTED DRAWING: Figure 3 【課題】高粘度の液体を吐出可能としながら、長寿命化を図ることができる液体吐出装置を提供する。【解決手段】液体吐出装置１０は、液体を吐出するノズル２１、及び、前記ノズル２１に連通する圧力室２９が形成された流路形成体２２と、前記流路形成体２２に積層され、前記圧力室２９を覆う被覆面２４ａ、及び、前記被覆面２４ａと反対側の対向面２４ｂを有する振動板２４と、前記振動板２４を挟んで前記圧力室２９に対向する当接面２３ａを有し、前記当接面２３ａが前記振動板２４から離間した退避位置、及び、前記当接面２３ａが前記振動板２４に当接する進出位置の間で前記対向面２４ｂに対して交差する交差方向に変位するアクチュエータ２３と、前記対向面２４ｂにおいて前記当接面２３ａに対向する領域を覆う第１保護膜２６と、を備えている。【選択図】図３