| 摘要 |
PROBLEM TO BE SOLVED: To provide a die device for molding which prevents the breakage of a core even in the case the core constituting the die device expands thermally. SOLUTION: The die device is provided with: a fixed die 1; a movable die 2; a bar-shaped first core (slide pin 3) retractable relative to a cavity C at the inside of both dies; and second cores (floating cores 4 and 5) capable of coming into contact with the first core in a crossed state. In the respective dies 1 and 2, core storing chambers 14 and 24 including relief spaces 14a and 24a for receiving the volume expansion of the second cores caused by heat are formed, and the second cores are stored in respective core storing chambers. A locking mechanism (collet chuck 6) selectively forbidding or allowing the displacement of the second cores is provided beside each of the core storing chambers 14 and 24. COPYRIGHT: (C)2005,JPO&NCIPI
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