| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the accumulation of a processing liquid at the circumference of a supporting hole at the time of stirring by disposing a liquid draining hole at a position of a recessed part recessed to the inner side of a replenishing tank body along the circumferential edge of the supporting hole. SOLUTION: The replenishing tank has the replenishing tank body 2a and a stirring part and the replenishing tank 2a is made of a synthetic resin and is projectingly provided with a portion having an injection port 21 of the processing liquid for replenishment and a supporting hole 22 for a shaft part of the stirring part above the other portion. The supporting hole 22 is disposed to inclined with the base surface of the replenishing tank body 2a and has the recessed part 23 recessed more to the inner side of the replenishing tank body 2a than the adjacent portion. The lowest position of the inclination is provided with a liquid draining notch 24 communicating with the supporting hole 22. The circumference of the supporting hole 22 is formed as the recessed part 23 and, therefore, even if the processing liquid accumulates in a large amount in the shaft part and ascends, the processing liquid once accumulates in this recessed part 23 and returns into the replenishing tank 2a via the liquid draining notch 24.
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