TRANSPARENT OR SEMITRANSPARENT BEAUTIFUL MEMBER OF AUTOMOBILE, INJECTOR FOR DEVICE FOR INJECTION MOLDING PLASTIC MATERIAL FOR PRODUCING LAMP LENS FOR EXAMPLE AND INJECTION MOLDING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an injection for suppressing deposition of a plastic material in a retention area between a nozzle tip and a ring nut of the injector and eliminating unnecessary process time for changes of color of the plastic material.SOLUTION: A nozzle tip 8 of an injector has a tip 12 and a ring nut 13 having distal terminals 12a and 13a respectively. One of the distal terminals is formed to bind with a gate 5 of a mold cavity and cooperates with a shutter terminal 10 of a bulb pin 9 of the injector, and total thickness 2A in a cross section is total thickness B or less of the cross section of the shutter terminal 10 of the bulb pin 9.SELECTED DRAWING: Figure 5