METHOD OF MANUFACTURING INSULATING MEMBER AND ELECTRICAL CONNECTOR

• Main Author: MASHIMA HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 16.08.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CURRENT COLLECTORS; ELECTRICITY; LINE CONNECTORS

PROBLEM TO BE SOLVED: To provide a method of manufacturing an insulating member and an electrical connector which can realize improvement in strength of the insulating member and reduction in warpage of the insulating member while making a flow of an injected molten resin difficult to generate a bias and preventing the flowability of the molten resin from being impaired.SOLUTION: The method includes a molding step of molding an insulating member by filling an internal space 20 of a mold 15 with a molten resin from at least three gate holes 5a, 5b, 5c. In the molding step, the gate hole 5a out of the gate holes 5a, 5b, 5c is disposed on a first imaginary straight line 20a bisecting the internal space 20 in a longitudinal direction of the internal space 20. The other gate holes 5b, 5c are disposed so that a virtual line segment connecting the other gate holes 5b, 5c and the gate hole 5a arranged on the first imaginary straight line 20a does not become parallel to the first imaginary straight line 20a and a second virtual straight line 20b.SELECTED DRAWING: Figure 4 【課題】注入された溶融樹脂の流れに偏りが生じにくく、溶融樹脂の流動性が損なわれることのないようにしつつ、絶縁部材の強度向上と絶縁部材の反りの低減とを実現することができる絶縁部材の製造方法及び電気コネクタを提供する。【解決手段】この方法は、少なくとも３つのゲート孔５ａ，５ｂ，５ｃから溶融樹脂を金型１５の内部空間２０に充填して、絶縁部材を成型する成型ステップを含む。成型ステップでは、ゲート孔５ａ，５ｂ，５ｃのうちのゲート孔５ａを、内部空間２０の長手方向に内部空間２０を２等分する第１の仮想直線２０ａ上に配置する。また、他のゲート孔５ｂ，５ｃを、他のゲート孔５ｂ，５ｃと第１の仮想直線２０ａ上に配置されたゲート孔５ａとを結ぶ仮想線分が、第１の仮想直線２０ａ及び第２の仮想直線２０ｂと平行とならないように配置する。【選択図】図４