| 摘要 |
PROBLEM TO BE SOLVED: To prevent the lowering of the outer appearance quality in a resin joining section. SOLUTION: A heat insulation material 36 is embedded in a site forming a joining section of resin from an air bag door section with resin from a main body section on a top force 30 forming the design face side of an instrument panel. A seal face 40A of a slide core 40 is brought into contact with the insulation material 36, and a cavity 34 is divided by the slide core 40. Because of the above arrangement, the cooling for an extreme front face 42 of a resin joining boundary section 26 is delayed by the insulation material 36, and the resin pressure is actuated securely to the last stage while the resin is in the molten state to reduce the weld sink marks formed on the joining boundary section 26. |
