LIQUID INJECTION HEAD AND LIQUID INJECTION DEVICE

Japanese Patent JP2016060107

A

PROBLEM TO BE SOLVED: To provide a liquid injection head removing influence of stress due to a heat load applied to a joint portion between a holder and a stationary plate and a joint portion between a head main body and the stationary plate due to expansion and contraction of the holder and being capable of preventing deformation of a nozzle plate.SOLUTION: A recording head unit II includes: a recording head main body 1 causing ink to be injected by driving of piezoelectric elements; a holder 38 holding the recording head main body 1; and a stationary plate 39 fixed with end surfaces of nozzle plate 20 sides of the recording head main body 1 and the holder 38. The stationary plate 39 has inclined surfaces 39A having a cross-sectional shape formed in a chevron shape and a free portion capable of freely moving in a direction intersecting with a surface direction of the stationary plate 39 in a predetermined region C being a part of the stationary plate 39 not being fixed with the holder 38 and the recording head main body 1. Further, the stationary plate 39 has a stationary portion 39F where a base end of the free portion is fixed to the holder 38. The stationary plate 39 is telescopically moved in the surface direction by force applied in the surface direction.SELECTED DRAWING: Figure 1

TATEBE CHIAKI
HIRAIDE TOSHINORI

JP2014189732A

April 25, 2016

September 18, 2014

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SEIKO EPSON CORP

B41J2/01; B41J2/14

Kazuaki Watanabe
Keisuke Nishida

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