| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of easily and surely preventing leakage of lubricant.SOLUTION: A device 10 includes: a casing 20 storing lubricant 14 thereinside and formed with a hole 28; a jig 22 capable of being taken in and out the inside of the casing 20 through the hole 28; and a communication part 26 provided in the jig 22 or casing 20 so as to separate from the hole 28, and communicating between the inside and outside of the casing 20. An amount of outside air equivalent to the volume which one portion of the jig 22 possesses inside the casing 20 is introduced to the inside of the casing 20 through the communication part 26, when the one portion of the jig 22 is taken out from the inside of the casing 20.SELECTED DRAWING: Figure 1 |
