Inkjet head and inkjet device using same
First Claim
Patent Images
1. An inkjet head, comprising:
- (i) multiple discharge units, each includinga nozzle that discharge a liquid droplet,a first pressure chamber that is connected to the nozzle,a supply-side second pressure chamber and a discharge-side pressure chamber that are connected to the first pressure chamber,a supply-side third pressure chamber that is connected to the supply-side second pressure chamber,a discharge-side third pressure chamber that is connected to the discharge-side second pressure chamber,an energy-generating element that imparts a discharge force to a liquid inside the first pressure chamber,a supply-side first throttle part that is provided between the first pressure chamber and the supply-side second pressure chamber,a discharge-side first throttle part that is provided between the first pressure chamber and the discharge-side second pressure chamber,a supply-side second throttle part that is provided between the supply-side second pressure chamber and the supply-side third pressure chamber, anda discharge-side second throttle part that is provided between the discharge-side second pressure chamber and the discharge-side third pressure chamber;
(ii) a supply-side common flow channel that connects the supply-side third pressure chambers in the respective multiple discharge units; and
(iii) a discharge-side common flow channel that connects the discharge-side third pressure chambers in the respective multiple discharge units.
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Abstract
An object of the disclosure is to provide an inkjet head that makes it possible to realize alleviation of ink-discharge malfunction due to fluid crosstalk possibly caused among multiple discharge components, and that also simultaneously makes it possible to maintain a desirable volume of discharged liquid droplets. Furthermore, another object of the disclosure is to provide an inkjet device including the inkjet head.
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Citations
13 Claims
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1. An inkjet head, comprising:
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(i) multiple discharge units, each including a nozzle that discharge a liquid droplet, a first pressure chamber that is connected to the nozzle, a supply-side second pressure chamber and a discharge-side pressure chamber that are connected to the first pressure chamber, a supply-side third pressure chamber that is connected to the supply-side second pressure chamber, a discharge-side third pressure chamber that is connected to the discharge-side second pressure chamber, an energy-generating element that imparts a discharge force to a liquid inside the first pressure chamber, a supply-side first throttle part that is provided between the first pressure chamber and the supply-side second pressure chamber, a discharge-side first throttle part that is provided between the first pressure chamber and the discharge-side second pressure chamber, a supply-side second throttle part that is provided between the supply-side second pressure chamber and the supply-side third pressure chamber, and a discharge-side second throttle part that is provided between the discharge-side second pressure chamber and the discharge-side third pressure chamber; (ii) a supply-side common flow channel that connects the supply-side third pressure chambers in the respective multiple discharge units; and (iii) a discharge-side common flow channel that connects the discharge-side third pressure chambers in the respective multiple discharge units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13)
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9. An inkjet head, comprising:
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(i) multiple discharge units, each including a nozzle that discharges a liquid droplet, a first pressure chamber that is connected to the nozzle, a supply-side second pressure chamber and a discharge-side pressure chamber that are connected to the first pressure chamber, a supply-side third pressure chamber that is connected to the supply-side second pressure chamber, an energy-generating element that imparts a discharge force to a liquid inside the first pressure chamber, a supply-side first throttle part that is provided between the first pressure chamber and the supply-side second pressure chamber, a discharge-side first throttle part that is provided between the first pressure chamber and the discharge-side second pressure chamber, and a supply-side second throttle part that is provided between the supply-side second pressure chamber and the supply-side third pressure chamber; (ii) a supply-side common flow channel that connects the supply-side third pressure chambers in the respective multiple discharge units; and (iii) a discharge-side common flow channel that connects the discharge-side second pressure chambers in the respective multiple discharge units. - View Dependent Claims (10, 11, 12)
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Specification