| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink jet head which can suppress retention of air bubbles contained in an ink in an inner flow passage, and an ink jet recording device.SOLUTION: An ink jet head comprises an intermediate member, a first junction member and a second junction member which are plate-like members having a specified thickness. A through-hole part is formed on the intermediate member. The through-hole part forms a flow passage part, which is a part of an inner flow passage connected to a nozzle, and opens to a first side and a second side in a thickness direction. The first junction member is joined to the intermediate member on the first side face in the thickness direction, plural first grooves along a flow direction are formed on the first side face in the thickness direction, and the first side face in the thickness direction forms a wall surface of the flow passage part together with an inner peripheral surface of the through-hole part. The second junction member is joined to the intermediate member on the second side face in the thickness direction, plural second grooves along a flow direction are formed on the second side face in the thickness direction, and the second side face in the thickness direction forms a wall surface of the flow passage part together with the inner peripheral surface of the through-hole part and the first side face in the thickness direction of the first junction member.SELECTED DRAWING: Figure 4 |
