| 摘要 |
PURPOSE:To prevent the mounting failure from developing due to the biting of a tubular flash, which is produced at molding, into a mounting counterpart member such as screw or the like by a method wherein one end part, which locates opposite to the inserting side of a mirror mounting boss, of a tubular gap, which is made by a columnar part overhung from either a fixed mold or a movable mold for shaping a mounting hole and the through-hole of a core, into which the columnar part is inserted, is formed as a micro-gap. CONSTITUTION:By forming one end part, which locates opposite to the inserting side of a mirror mounting boss, of a tubular gap 23, which is made by a columnar part 19 to shape a mirror mounting hole 5 and the through-hole 21 of a core 17 into which the columnar part is inserted, as a micro-gap 23a, a thin-walled fragile part is formed at the one end part, which locates opposite to the inserting side of the predetermined mirror mounting boss, of a tubular flash 25. As a result, when a molded part is re moved from a mold (when the core 17 is shifted), the tubular flash 25 is surely cut off at the one end part, which locates opposite to the inserting side of a mounting boss. Accordingly, at the mounting of a mirror main body, no fear of an impossibility of mounting due to the biting of the tubular flash 25 into a mounting counterpart member such as screw or the like arises.
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