Title:
INK JET HEAD
Document Type and Number:
Japanese Patent JP3134690
Kind Code:
B2
Abstract:
PURPOSE: To enhance the bonding strength of a flexible printed cable and a piezoelectric element and to prevent a short circuit.
CONSTITUTION: A piezoelectric element 6 is bonded to the upper surface of a nozzle plate 3 through a vibration plate 5 in opposed relation to a pressure chamber part 4b. A notch part 10a having an area larger than that of the electrode surface 6a of the piezoelectric element 6 is provided to the coverlay 10 of a flexible printed cable 7 at the position to be opposed to the piezoelectric element 6. The terminal part 9a being a part of a conductive pattern is positioned in the notch part and formed so as to have an area smaller than that of the electrode surface 6a. When a conductive adhesive 11 is dripped on the electrode surface 6a to press the notch part to the electrode surface, the electrode surface 6a and the terminal part 9a are brought to a direct contact state within the notch part and bonded in such a state that the periphery thereof is surrounded by the adhesive. By this constitution, conductive efficiency is enhanced and the use amt. of the adhesive can be reduced and, since the adhesive is prevented form flowing to the surface of the coverlay, the cause of a short circuit is removed.
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Inventors:
Yoshikatsu Dobuchi
Application Number:
JP29980794A
Publication Date:
February 13, 2001
Filing Date:
December 02, 1994
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B41J2/01; B41J2/045; B41J2/055; H05K3/32; H05K3/36; (IPC1-7): B41J2/045; B41J2/055
Domestic Patent References:
| JP6106724A | ||||
| JP5989164A | ||||
| JP5104711A | ||||
| JP217336U |
Attorney, Agent or Firm:
Kisaburo Suzuki (2 outside)