发明名称 INJECTION MOLD
摘要 PURPOSE:To prevent reliably tottering of a free end due to injection pressure, by a method wherein a press pin whose tip part is drill-like is provided on a side facing on a receiving surface of a cavity and mold clamping is performed under a state where a drill-like tip part is encroached upon a free end part of a terminal. CONSTITUTION:When mold clamping is performed a base end side of a terminal part 9 is held between a top and bottom forcess 12, 13 and a free end part (a stationary contact point part 2a) of the terminal part 9 is held between a press pin 20 and receiving surface B. In this instance, a drill-like tip part 20a of the press pin 20 is encroached upon the stationary contact point part 2, therefore, the stationary contact point part 2a is welded strongly to the receiving surface B with pressure. Although the stationary contact point part 2a is exposed under injection pressure of molten state resin 15 when the resin 5 is injected/cast into a cavity 11 through a gate 12a after the mold clamping like this, as the stationary contact point part 2a is pressed strongly against the receiving surface B through encroaching by the press pin 20, there is neither a fear of generating tottering nor a fear that the resin 15 enters between the stationary contact point part 2a and receiving surface B.
申请公布号 JPH01171921(A) 申请公布日期 1989.07.06
申请号 JP19870330232 申请日期 1987.12.28
申请人 ALPS ELECTRIC CO LTD 发明人 SATO SEIICHIRO
分类号 B29C45/14;B29C45/36;B29L31/34;H05K3/00 主分类号 B29C45/14
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