发明名称 BLOW-MOLDED ARTICLE AND BLOW MOLDING MOLD
摘要 <P>PROBLEM TO BE SOLVED: To provide a molded article having a hollow part and a solid part, where a hole can be molded after the article is molded, without the need of a secondary drilling machining of the solid part for an attaching bearing surface, and to provide a molding mold for obtaining the molded article. Ž<P>SOLUTION: The blow-molded article has the hollow part and the solid part, in the solid part, the through-hole is formed and a sheet-like part is formed on the peripheral edge of the hole. A first thin-thickness part which is thinner than the sheet thickness of the sheet-like part is partly disposed on the edge part of the through-hole, and a second thin-thickness part which is medium in thickness between the sheet thickness of the sheet-like part and the thickness of the first thin thickness part is partly disposed on the remaining edge part of the through-hole. The blow molding mold includes: a first cavity for molding the hollow part; a second cavity for molding the sheet-like solid part; an annular cut-off part disposed in the second cavity; and a third cavity located in the cut-off part, where a pin for forming the through-hole goes backward and forward. The cut-off part has a bottle neck part for molding the first thin-thickness part; a normal cut-off part for molding the second thin-thickness part. The third cavity is biased from the sheet surface of the solid part in a crossing direction. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2009279786(A) 申请公布日期 2009.12.03
申请号 JP20080132107 申请日期 2008.05.20
申请人 NIPPON PLAST CO LTD 发明人 NAKAMURA HIDEAKI
分类号 B29C49/50;B29C49/04;B62D35/00 主分类号 B29C49/50
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