JP2006218716A5 - - Google Patents

Claims (5)

A nozzle plate provided with a nozzle opening for discharging droplets, a flow path forming substrate in which a pressure generation chamber communicating with the nozzle opening is formed, and a vibration in a region corresponding to the pressure generation chamber of the flow path forming substrate A piezoelectric element that is provided via a plate and applies pressure for droplet discharge into the pressure generating chamber;
The nozzle plate and the flow path forming substrate are bonded via an adhesive, and the peripheral wall on one end side where the nozzle opening in the longitudinal direction of the pressure generating chamber is formed is formed from the diaphragm side from the diaphragm side. A first inclined surface that inclines so as to expand toward the nozzle plate side, and is disposed closer to the diaphragm side than the first inclined surface and expands from the diaphragm side toward the nozzle plate side A second inclined surface inclined so as to form an angle between the first inclined surface and the second inclined surface, and the angle of the first inclined surface and the second inclined surface with respect to the nozzle plate And a stepped surface formed to have an acute angle ,
At least a part of the nozzle opening is disposed so as to be on the other end side opposite to the one end side with respect to the boundary between the step surface and the first inclined surface. Liquid jet head. Oite the liquid jet head according to claim 1, the liquid ejecting head, wherein the stepped surface is provided at a position of 20~40μm from the nozzle plate. Oite the liquid jet head according to claim 1 or 2, the ends of the piezoelectric element side of the longitudinal direction of the peripheral wall of the nozzle openings communicating with sides of said pressure generating chamber, substantially driving of the piezoelectric element A liquid ejecting head, wherein the liquid ejecting head is provided outside the piezoelectric active portion. Oite the liquid jet head according to any one of claim 1 to 3, wherein the stepped surface is the liquid-jet head, characterized in that is provided at a position opposite to the nozzle opening. A liquid ejecting apparatus comprising the liquid ejecting head according to any one of claims 1-4.