Method for manufacturing hollow molded article and apparatus for molding hollow molded article

An apparatus for molding a hollow molded article, the apparatus comprising:

• a first molding die;
• and
• a second molding die disposed to face the first molding die,
• wherein a pressing surface for partially holding a pair of resin sheets between the first molding die and the second molding die, a molding surface for forming a concave section with respect to the pressing surface, and a plurality of suction holes provided on the molding surface are provided, the first molding die includes a convex section provided to partially project in comparison with the pressing surface of the first molding die, and further includes a fluid supply source adjacent to the convex section, when holding the pair of thermoplastic resin sheets by closing the pair of molding dies in a state in which the pair of resin sheets are superimposed with each other and are disposed between the pair of molding dies.

An apparatus for molding a hollow molded article, the apparatus comprising:

• a first molding die;
• and
• a second molding die disposed to face the first molding die,
• wherein each the first molding die and the second molding die has a pressing surface for partially holding two resin sheets between the first molding die and the second molding die, a molding surface for forming a concave section with respect to the pressing surface, and a plurality of suction holes provided on the molding surface, and
• the first molding die further includes a convex section provided to partially project in comparison with the pressing surface of the first molding die.