| 摘要 |
PROBLEM TO BE SOLVED: To provide a channel member, a liquid jetting head and a liquid jetting device capable of suitably connecting a channel by reducing a stress from a seal member to a liquid introduction needle.SOLUTION: A channel member which is connected with a first member having a first channel and allows liquid to be supplied from the first channel thereto includes: a liquid introduction needle 100 which is inserted to the first member; and a second channel 110 which is connected with the first channel. Therein, the liquid introduction needle has a tip part 101, a root part, an inclination part 103 of which the diameter becomes gradually larger toward the root part from the tip part, a straight part of which the diameter is constant and a groove part having a part in which the width on an outer circumference of the liquid introduction needle becomes gradually larger, the straight part respectively has a positioning range 104a which is positioned by coming into contact with the first member and a seal range which is sealed by coming into contact with a seal member disposed on the first member, and the groove part is provided so as to attain to the positioning range and so as not to attain to the seal range 104b.SELECTED DRAWING: Figure 10 |
