| 摘要 |
PROBLEM TO BE SOLVED: To carry out the discharge and liquid cut of plating liquid from the bottom part of a plating board positively promptly as a plating box-like vessel is lifted up from a plating bath, and make plating work efficient by forming the upper surface of crossing ribs forming a bottom part provided with penetration holes into a curved surface. SOLUTION: The bottom part 3 of a plating box-like vessel including long side walls and short side walls being opposed respectively are formed of a plurality of ribs 3a crossing in an intersecting state. Between the crossing ribs 3, penetration holes 3b are made so as to allow plating liquid to flow therethrough, and an upper surface 3c being in the direction intersecting the longitudinal direction of the crossing ribs 3a is formed into a curved surface. For example, a vertical cross-sectional configuration intersecting the longitudinal direction of the crossing ribs 3a is formed in a mushroom shape comprising a semicircular cylinder 3a1, and then the upper surface 3c of the crossing ribs 3a is formed into a curved surface. In this way, when the vessel is lifted up from the plating bath, the discharge or liquid cut of plating liquid from the bottom part 3 can be implemented positively promptly.
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