发明名称 LIGHTING FIXTURE FOR VEHICLE
摘要 PROBLEM TO BE SOLVED: To suppress the occurrence of molding failure without increasing a metal mold cost in a lighting fixture for vehicle equipped with a lamp body made of an injection molding. SOLUTION: A rib 28 which extends from a gate trace 26 formed on this side rear wall portion 22A to inner rear wall face portion 22B via an intermediate wall face portion 22C is formed on the inner face of a wall face portion 22 of approximately uniform thickness which constitutes a lamp body 14. Thereby, in a metal mold molding the lamp body 14, a portion forming the rib 28 is caused to function as a runner channel for fused resin so that the fused resin is caused to spread to all corners in a cavity with ease. Therefore, even if the number of gates is reduced comparing with that of a conventional metal mold, the lamp body 14 can be molded without the occurrence of molding failure.
申请公布号 JPH10247403(A) 申请公布日期 1998.09.14
申请号 JP19970061790 申请日期 1997.02.28
申请人 KOITO MFG CO LTD 发明人 NAGAYAMA SATORU
分类号 F21S8/10;B29C45/00;B29C45/26;B29L31/30;B60Q1/04;F21V15/01;(IPC1-7):F21M3/02 主分类号 F21S8/10
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