LIQUID JETTING HEAD AND LIQUID JETTING DEVICE

• Main Author: OKUI HIROAKI
• Format: Patent
• Language: English; Japanese
• Published: 15.02.2018
• 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

PROBLEM TO BE SOLVED: To obtain a small liquid jetting head which achieves reduction of a cost and is excellent in absorption efficiency of pressure variation of a pressure generating chamber or the like.SOLUTION: Since a reservoir part 32 is formed also on a through-hole 33, an area of a sealing film 41 of a compliance substrate 40 is kept large, consequently, absorption efficiency of pressure variation is improved. A part of the reservoir part 32 is formed also on a through-hole 33 in a direction where a flow path forming substrate 10, a protective substrate 30, and a reservoir forming substrate 35 are piled up. Consequently, a small inkjet type recording head 1 can be obtained, which suppresses increase in a cost in comparison with a case where the reservoir part 32 is formed by broadening the substrates while keeping away from the through-hole 33.SELECTED DRAWING: Figure 7 【課題】圧力発生室等の圧力変動の吸収効率のよい、コストを低減した、小型の液体噴射ヘッドを得ること。【解決手段】リザーバー部３２が貫通孔３３上にも形成されているので、コンプライアンス基板４０の封止膜４１の面積を大きく取ることができ、圧力変動の吸収効率がよくできる。また、流路形成基板１０、保護基板３０、リザーバー形成基板３５の積み重ねられた方向の貫通孔３３の上にもリザーバー部３２の一部が形成されているので、貫通孔３３を避けて、これらの基板を広げてリザーバー部３２を形成した場合と比較して、コストを抑えた、小型のインクジェット式記録ヘッド１を得ることができる。【選択図】図７