Patent ID: 7832847

Claim:
A droplet discharging apparatus, comprising: a pressure chamber communicated with a nozzle; a diaphragm which is a member of the pressure chamber; a piezoelectric device for driving the diaphragm; a projection provided on the diaphragm to stay in direct contact with the piezoelectric device for transmitting the oscillating action of the piezoelectric device to the diaphragm; a flow passage communicated with the pressure chamber for discharging droplets of a liquid from the nozzle; and a first member and a second member, wherein the first member has a groove provided therein for incorporating the diaphragm, and the flow passage and a supply inlet provided therein for communicating with the groove, the second member has a recess provided therein for incorporating the pressure chamber, the first member and the second member being integrally fabricated respectively for being bonded together to have an overlap region between the groove and the recess which remain open to each other only toward the facing end in the proximity of the overlap region, so that the flow passage is formed in the groove and the pressure chamber is formed in the recess when the first member and the second member have been joined to each other with both the openings of the groove and the recess facing each other by an adhesive applied between the first member and the second member, thus allowing the flow passage and the pressure chamber to be communicated with each other by the overlap region of the groove and the recess.