| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle device, in which expansion and contraction and the fine adjustment of a position are effectuated in non-motor driving and which has a high stroke and a small housing space. SOLUTION: When a fluid is poured from the opening end side of a bellows section 1, the bellows section 1 is extended by the pressure of the fluid, and the fluid is ejected from a fluid nozzle 2. Thus, the bellows section is shrunk in the nonuse case, but the bellows section 1 is extended long in the use case, and the fluid nozzle 2 can also be brought to a distant place.
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