| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that in a conventional metallic casting mold device, the size of the device is liable to become large and the galling of the metallic mold is liable to occur in disassembling the mold. SOLUTION: A metallic casting mold device is used for casting a product 01 having a first recessed portion 02 and a second recessed portion 03 formed on upper and lower surfaces of an upper wall, the first recessed portion 02 having an undercut portion 02a. An upper mold 2 and a lower mold 1 for forming the respective recessed portions are configured by a split core composed of center cores 7, 22 and Phillips cores 8, 9, 23, 24 which can slide on the respective center cores. The center core of the upper mold and the Phillips cores are slidably connected by means of a slide mechanism, and also the upper Phillips cores are configured so as to move relative to the center core by their weight. As a result, a special driving mechanism is not necessary, and the device can be simplified and small-sized. COPYRIGHT: (C)2008,JPO&INPIT
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