Droplet ejection head and method of manufacturing coated body
AssigneeKabushiki Kaisha Toshiba
InventorsHiroshi Koizumi, Shizuo Kinoshita
Life of this patent
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Abstract
According to one embodiment, a droplet ejection head includes a liquid room, chambers, piezo elements, restrictors, movable pieces, and actuators. The liquid room stores a liquid. The chambers are supplied with the liquid from the liquid room and include nozzles for ejecting the supplied liquid in a droplet state. The piezo elements can be displaced in directions so as to change contents of the chambers. The restrictors bring the liquid room and the chambers in communication with each other. The movable pieces are movable in directions so as to change flow-path areas of the restrictors. The actuators move the movable pieces in the directions so as to change the plow-path areas of the restrictors.
Claims6
A droplet ejection head used in and attached to a liquid ejection device, comprising:
- a liquid room for storing a liquid;
- a chamber supplied with the liquid from the liquid room and including a nozzle for ejecting the supplied liquid in a droplet state;
- a piezo element displaced in directions so as to change a content of the chamber;
- a restrictor that brings the liquid room and the chamber in communication with each other;
- a movable piece movable in directions so as to change a flow-path area of the restrictor;
- and
- an actuator for moving the movable piece in the directions so as to change the flow-path area of the restrictor,
- wherein the restrictor is inclined so that the liquid room is located in a higher position than the chamber when the droplet ejection head is attached to the liquid ejection device.
A method of manufacturing a coated body, comprising:
- coating droplets by ejecting toward a to-be-coated object by use of a droplet ejection head comprising a liquid room for storing a liquid, a chamber supplied with the liquid from the liquid room and including a nozzle for ejecting the supplied liquid in a droplet state, a piezo element displaced in directions so as to change a content of the chamber, a restrictor that brings the liquid room and the chamber in communication with each other, a movable piece movable in directions so as to change a flow-path area of the restrictor, and an actuator for moving the movable piece in the directions so as to change the flow-path area of the restrictor,
- wherein the restrictor is inclined so that the liquid room is located in a higher position than the chamber when the droplet ejection head is attached to the liquid ejection device.
Dependencies are inferred from the claim text.