| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a valve unit, a liquid jet unit, and a liquid jet device capable of restraining a protrusion part for caulking fused upon heat caulking from flowing more than necessary to the spring receiving seat side and, thereby, preventing a circulation hole from being blocked. <P>SOLUTION: On a unit body 50, a relief part 78 retreated to the opposite surface side of the spring receiving seat from the surface of the spring receiving seat 59 arranged on the opening part of a valve accommodation chamber is formed over the whole circumference of the protrusion part for caulking on the position of the outer side opposite to the opening part of the valve accommodation chamber 51 across the protrusion part 77 for caulking. <P>COPYRIGHT: (C)2013,JPO&INPIT |
