| 摘要 |
PROBLEM TO BE SOLVED: To smoothly insert and remove a nozzle into a bung hole without scattering of oil and to properly feed the oil. SOLUTION: A preset auto-nozzle 10 is provided with an oil feeding nozzle 11 inserted into a bung hole 101 of a container 100, a piston for driving forward and backward the oil feeding nozzle 11 to the bung hole 101 and a liq. face sensor 13 for detecting the liq. face of the oil in the container 100 and after the oil is fed into the container 100 from the oil feeding nozzle 11, the oil feeding nozzle is pulled out from the container 100. A cylinder 15 constituting an oil feeding path 14 for feeding the oil into the oil feeding nozzle 11 is provided and the piston 12 is freely slidably fitted in the cylinder 15. In addition, a vacuum means for negatively sucking the oil feeding path 14 is provided. The liq. face sensor 13 detects the liq. face of the oil based on change in back pressure when air is sent by pressure into the oil in the container 100.
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