JPH0180321U

JPH0180321U -

Info

Publication number: JPH0180321U
Application number: JP1987174610U
Authority: JP
Priority date: 1987-11-16
Filing date: 1987-11-16
Publication date: 1989-05-30

Description

[Brief explanation of drawings]

第１図は本考案の実施例の型締め状態を示す縦
断断面図、第２図は第１図Ｘ―Ｘ線切断断面図、
第３図は本実施例の型開き状態を示す部分断面図
、第４図は本実施例の主要部の拡大断面図、第５
図は本実施例により成形する成形品の斜視図であ
る。１…成形品、１４…コア、１４ａ，１４ｂ…分
割片、１４ｉ′，１５ａ…エアー通路、Ｓ…間隙
。 FIG. 1 is a vertical cross-sectional view showing the mold clamping state of the embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line X--X of FIG.
Fig. 3 is a partial sectional view showing the mold opening state of this embodiment, Fig. 4 is an enlarged sectional view of the main part of this embodiment, and Fig. 5
The figure is a perspective view of a molded product molded according to this example. DESCRIPTION OF SYMBOLS 1...Molded product, 14...Core, 14a, 14b...Divided piece, 14i', 15a...Air passage, S...Gap.

Claims

[Claims for Utility Model Registration] In a mold device for injection molding a molded product having an undercut portion on the inner surface using a thermoplastic elastomer as the molding material, a plurality of cores forming the inner surface of the molded product are arranged adjacent to each other. Each divided piece is attached to an adjacent divided piece so as to be freely separable and to form a gap that communicates with the outside of the core between the adjacent surfaces of each divided piece when separated; The injection method is characterized in that an air passage communicating with the gap is provided inside the core, and when the mold is opened, the divided pieces are separated and air is force-fed from the air passage through the gap into the inside of the molded product. Molding mold equipment.