LIQUID DROPLET DISCHARGE DEVICE
First Claim
1. A liquid droplet discharge device including a liquid chamber that is communicated with a discharge opening, and that is supplied with a liquid material, a needle having a tip that is advanced and retracted within the liquid chamber, a drive device that operates the needle to advance and retract, and a displacement magnifying mechanism, the liquid droplet discharge device discharging liquid droplets in a flying mode from the discharge opening,wherein the drive device is constituted by an even number of drive devices disposed in a left-right symmetric relation,the displacement magnifying mechanism includes an elastically deformable U-shaped member having a bottom portion to which the needle is coupled, andthe drive devices operate the needle to retract by applying forces acting to move the two ends of the U-shaped member away from each other, and to advance by applying forces acting to move the two ends of the U-shaped member closer to each other.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid material is discharged in a flying mode at a high tact by moving a needle (12) at a high speed with a small-sized drive device. A liquid droplet discharge device includes a liquid chamber (51) that is communicated with a discharge opening (60), and that is supplied with the liquid material, a needle (12) having a tip that is advanced and retracted within the liquid chamber, a drive device (2) that operates the needle (12) to advance and retract, and a displacement magnifying mechanism (3), wherein liquid droplets are discharged in a flying mode from the discharge opening (60). Even number of drive devices are disposed in a left-right symmetric relation, and the displacement magnifying mechanism (3) includes an elastically deformable U-shaped member (5, 6, 7, 8, 9) having a bottom portion to which the needle (12) is coupled.
13 Citations
17 Claims
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1. A liquid droplet discharge device including a liquid chamber that is communicated with a discharge opening, and that is supplied with a liquid material, a needle having a tip that is advanced and retracted within the liquid chamber, a drive device that operates the needle to advance and retract, and a displacement magnifying mechanism, the liquid droplet discharge device discharging liquid droplets in a flying mode from the discharge opening,
wherein the drive device is constituted by an even number of drive devices disposed in a left-right symmetric relation, the displacement magnifying mechanism includes an elastically deformable U-shaped member having a bottom portion to which the needle is coupled, and the drive devices operate the needle to retract by applying forces acting to move the two ends of the U-shaped member away from each other, and to advance by applying forces acting to move the two ends of the U-shaped member closer to each other.
Specification