To facilitate the adjusting operation of a clearance and to remarkably reduce a time required for the adjusting operation.
A coating unit body 25 can be attached to the periphery of the insertion hole 13 of a casing 3, the coating unit body 25 is provided with an oil tank 29 insertable into the insertion hole 13 of the casing 3, a coating slider 31 is disposed on the bottom face side of the oil tank 29, the coating slider 31 can be moved along the tip 7t of a moving blade 7 via a guide rail 33 in a state where the coating unit body 25 is attached to the periphery of the insertion hole 13 of the casing 3, and an electrode holder 37 of holding a discharge electrode 39 is disposed on the coating slider 31 so as to be movable in the upper and lower directions.
IDA FUTOSHI
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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