| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a labor hour such as working of an oblique hole in a mold and to release a molding even without large space in the mold for molding the molding having an undercut shape. SOLUTION: A push rod 5 movable parallel to the mold opening direction of a movable mold 3 is provided at a fixed mold 2. A slide body 10 connectible to the recess 2d of the mold 2 and movable in the lateral direction with respect to the opening direction is provided at the front end of the rod 5. Thus, the body 10 is pressed toward the tapered surface t of the recess 2d by a compression spring 12, and an undercut part u is provided at the opposite surface side of the body 10.
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