Patent ID: 8425222

Claim:
A die assembly for injection molding, comprising: a first die and a second die which are configured to be moved in an open/close direction so as to form a cavity and mold a component in the cavity; a pair of a first cavity-forming member and a second cavity-forming member which are configured to form the cavity; and a floating mechanism provided on at least one of the first die and the second die, wherein the first cavity-forming member is disposed in the first die to form one side of the cavity; a second cavity-forming member is disposed in the second die to form the other side of the cavity; the first cavity-forming member and the second cavity-forming member each have a taper portion, the taper portions configured to be engaged with each other when die clamping of the first die and the second die is performed; a die which is one of the first die and the second die and which has the floating mechanism is a floating-mechanism-equipped die; a cavity-forming member which is one of the first cavity-forming member and the second cavity-forming member and which is disposed in the floating-mechanism-equipped die is a movable cavity-forming member; and the floating mechanism movably holds the movable cavity-forming member and causes the movable cavity-forming member disposed in the floating-mechanism-equipped die to move such that the movable cavity-forming member follows an engagement of the taper portions when the die clamping is performed.