| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricating oil feed device capable of improving durability, and preventing oil leak or backflow due to dust or gaps between parts. SOLUTION: As lubricating oil is fed to a valve element 13, a closing member 15 is pushed away to open an outflow port of a passage hole 14a to let lubricating oil flow out. The lubricating oil after passing the valve element 13 is delivered from a nozzle body 18 to be sent by air. Packings 25 and 26 are respectively disposed between a cylinder 11 and a support body 21, and between the support body 21 and the nozzle body 18 for preventing oil leak. The support body 21, the nozzle body 18, and the valve element 13 are press-fitted, and their contact surfaces are polished to let them tightly fitted, thereby oil leak is prevented.
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