| 摘要 |
PROBLEM TO BE SOLVED: To provide a needle valve stem/spring partial assembly formed to enable to be disassembled, cleaned, repaired and reassembled remarkably easily and rapidly and capable of being easily and inexpensively manufactured. SOLUTION: An airless spray gun is constituted so that a gun body is included, a 1st inner passage for introducing a pressurized fluid to a discharge nozzle is provided in the gun body, a valve for controlling the flow rate of the fluid and a valve stem for operating the valve are arranged in the passage, the valve stem extends through a 2nd inner passage, a spring for closing the valve by pressing the valve stem in the downstream side direction and a trigger for opening the valve by moving the valve stem to the upstream side direction are further included and the 1st passage crosses the 2nd passage at the downstream side from the spring and the upstream side from the valve. |
