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METHOD FOR MANUFACTURING HOLLOW MOLDED ARTICLE AND APPARATUS FOR MOLDING HOLLOW MOLDED ARTICLE

  • US 20190315044A1
  • Filed: 06/27/2019
  • Published: 10/17/2019
  • Est. Priority Date: 03/31/2015
  • Status: Active Grant
First Claim
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1. An apparatus for molding a hollow molded article, of which a hollow section is molded between a pair of superimposed, heated and softened thermoplastic resin sheets, by a pair of vacuum molding dies having shaping section to form a concave shape facing each other on the pair of thermoplastic resin sheets and air bleeding holes provided in the shaping sections,wherein one of the pair of thermoplastic resin sheets is formed with a through-hole to which the hollow section is connected, one vacuum molding die corresponding to the one of thermoplastic resin sheet is formed with a notch corresponding to the through-hole, when holding the pair of thermoplastic resin sheets by closing the pair of vacuum molding dies in a state in which the one thermoplastic resin sheet and the other thermoplastic resin sheet are superimposed with each other and are disposed between the pair of vacuum molding dies, and a seal section configured to seal between the shaping section and the notch, formed between the shaping section of the one vacuum molding die and the notch.

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