Patent ID: 8069697

Claim:
An apparatus for press molding a heated metal plate material, comprising: a supply piping arrangement provided in a mold and configured to interact with a cooling medium; ejection holes provided in a molding surface of the mold and configured to interact with the cooling medium, the supply piping and the ejection holes communicating with one another; and a plurality of projections provided on at least one portion of part of the molding surface of the mold such that the cooling medium is circulated through gaps between the mold and the metal plate material forcibly so as to cool the mold and a molded piece, the projections being disposed in at least one recess which is structured to prevent marks of the projections to be transferred to the heated metal plate material and having an area ratio between about 1% and 90%, a diameter or circumcircle diameter between about 10 Î¼m and 5 mm, and a height between about 5 Î¼m and 1 mm.