| 摘要 |
PROBLEM TO BE SOLVED: To solve the point at issue wherein there is a mechanical restriction when various problems of a conventional relatively small-scale molding machine are improved and the remodeling of this molding machine can not be easily performed or the molding machine becomes a large-scale structure when it is newly manufactured to bring about an increase in cost in a foam molding mold assembly remote from a filling port of sparkling synthetic resin particles and difficult to obtain good filling properties and fusibility. SOLUTION: The foam molding mold assembly is constituted so that at least one line of a ventilation opening comprising the linear slit communicating with a steam chamber is provided to a thin-walled leading end part or an uneven stepped leading end part almost along the outer peripheral shape of a foam molded object in the wall thickness distance of the thin-walled leading end part or uneven stepped leading end part. COPYRIGHT: (C)2009,JPO&INPIT |
