| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold used for injection molding not causing a flaw such as the surface unevenness or sink of a frame by solving the problem that a sink is prevented by injecting a pressure gas in a molten resin in the case where framed glass is manufactured by injection-molding the frame in the periphery of glass but the effect of the pressure gas is not sufficiently developed by the shape of the frame and the flaw such as the surface unevenness or sink of the frame. SOLUTION: In the injection mold used for molding the resin frame integrally fixed to the peripheral edge part of plate glass, a cavity for the frame is formed between split molds, the peripheral part of plate glass is arranged to the cavity for the frame and at least a resin injection port is provided to the mold. An auxiliary cavity for forming a hermetically closed space not communicating with the outside other than a communication hole is provided to the cavity for the frame which forms the frame which is 4 mm or above in thickness through the communication hole. COPYRIGHT: (C)2009,JPO&INPIT
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