| 摘要 |
PROBLEM TO BE SOLVED: To provide a die assembly which has a structure capable of surely preventing a pressurized fluid from being leaked to the outside, and capable of opening the pressurized fluid in a hollow part to the atmosphere in a short period of time. SOLUTION: This die assembly is equipped with a fixed die part, a movable die part 12, a cavity 13, a molten resin injection part, a pressurized fluid injection nozzle 20 which is inserted into an insertion hole 17, and a moving means. A seal member 40 is arranged on an inner wall 17A of the insertion hole 17, and the nozzle 20 is provided with a recess 24. A pressurized fluid discharge channel 25 is brought into a closed state by contact between an outer surface 20A of the nozzle 20 and the seal member 40 when the nozzle 20 is positioned at an advance end, and brought into an opened state a void which exists between the seal member 40 and the recess 24 provided on the outer surface 20A of the nozzle 20, when the nozzle 20 is positioned at a retreat end. COPYRIGHT: (C)2006,JPO&NCIPI |
