Patent ID: 8974223
Filing Date: 2015-03-10
Classification: B29C,Y10T

Abstract:
1. An injection foaming mold suitable for use in core-back injection molding in which a foamable resin containing a foaming agent is injected into a space of the mold, and a height of the space is enlarged to accelerate foaming in the space, the injection foaming mold comprising: a fixed core; and a movable core, wherein the movable core is adjacent to the fixed core and is capable of moving to a forward position where the height of the space is made smaller than the height of an enlarged space, wherein the fixed core has a boundary portion between a portion where the height of the space is smaller than the height of the enlarged space and the movable core, and wherein the boundary portion is inclined such that the height of the space gradually increases from the portion where the height of the space is smaller than the height of the enlarged space toward the movable core.