JPS6446207U

JPS6446207U -

Info

Publication number: JPS6446207U
Application number: JP14123487U
Authority: JP
Priority date: 1987-09-16
Filing date: 1987-09-16
Publication date: 1989-03-22

Description

[Brief explanation of drawings]

第１図から第３図は本考案に係る図で、第１図
はコア型用コマの斜視図、第２図はコア型用コマ
の切断面を裏面から示した斜視図、第３図は金型
の断面図、第４図ａは従来の金型の説明図、第４
図ｂは第４図ａの平面図、第５図は従来のコア型
用コマの斜視図、第６図ａは本考案で成形した製
品の合流点位置の断面図、第６図ｂは従来製品の
合流点位置の断面図である。符号の説明、３…合流点、Ａ…空気、５…コア
型用コマ、１１…切断面、１２…空気抜け部。 Figures 1 to 3 are views related to the present invention, where Figure 1 is a perspective view of a core mold piece, Figure 2 is a perspective view of the cut surface of the core mold piece from the back, and Figure 3 is a perspective view of the core mold piece. A sectional view of the mold, Fig. 4a is an explanatory diagram of a conventional mold, Fig. 4
Figure b is a plan view of Figure 4a, Figure 5 is a perspective view of a conventional core mold piece, Figure 6a is a sectional view of the confluence position of the product molded according to the present invention, and Figure 6b is a conventional FIG. 3 is a cross-sectional view of the confluence position of the products. Explanation of the symbols, 3... Merging point, A... Air, 5... Core mold piece, 11... Cutting surface, 12... Air vent portion.

Claims

[Scope of utility model registration request]

The core mold piece processed into a Fresnel cut is cut and divided from the center line of the concentric circle with the confluence point of the resin injected along the concentric circles as a border, and the resin is injected into the cut surface of the divided core mold piece. A mold for an inner lens for a vehicle, which is formed by forming an air vent part to prevent the resin from flowing out, and then surface-joining the cut surfaces of the divided core mold pieces abutting each other again.