Discharge head and discharge apparatus
AssigneeMicrojet Corporation
InventorsShuichi Yamaguchi, Akira Ueno
Life of this patent
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Abstract
There is provided a discharge head including: a tubular member that includes a flat portion with an oblate shape where a cross-section of a tube path extends in a first direction, the tubular member being formed so that the flat portion includes a first wall that is flat and has an actuator attached to an outside thereof and the flat portion becomes a cavity with an internal volume thereof varying due to displacement of the first wall; and a nozzle opening that is provided at one end of the tubular member and discharges a liquid substance due to variation in the internal volume of the cavity.
Claims20
A discharge head comprising:
- a tubular member that includes a flat portion with an oblate shape where a cross-section of a tube path extends in a first direction that is perpendicular to the tube path, the tubular member being formed so that the flat portion includes a first wall that is flat and configured so that an actuator is attached to an outside thereof and the flat portion becomes a cavity with an internal volume thereof varying due to displacement of the first wall;
- and
- a nozzle opening that is provided at one end of the tubular member and discharges a liquid substance due to variation in the internal volume of the cavity,
- wherein the tubular member includes a first cylindrical portion and a second cylindrical portion positioned in front and behind the flat portion, the flat portion widens further outside than the first cylindrical portion and the second cylindrical portion in the first direction, and narrows to become further inside than the first cylindrical portion and the second cylindrical portion in a second direction that is perpendicular to the first direction.
A tubular member comprising a flat portion with an oblate shape where a cross-section of a tube path extends in a first direction that is perpendicular to the tube path and a first wall that is flat and has an actuator attached to an outside of the tubular member, the flat portion being formed so as to become a cavity with an internal volume thereof varying due to displacement of the first wall,
- wherein a nozzle opening that discharges a liquid substance due to variation in the internal volume of the cavity is provided at one end of the tubular member, and
- wherein the tubular member includes a first cylindrical portion and a second cylindrical portion positioned in front and behind the flat portion, the flat portion widens further outside than the first cylindrical portion and the second cylindrical portion in the first direction, and narrows to become further inside than the first cylindrical portion and the second cylindrical portion in a second direction that is perpendicular to the first direction.
Dependencies are inferred from the claim text.