AIR BAG DOOR INTEGRAL TYPE INSTRUMENT PANEL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an air bag door integral type instrument panel on which breakage precisely advances along a tear line, no burr grows and scatters and an air bag door is never broken when an air bag swells. SOLUTION: The air bag door integral type instrument panel 1 closing an opening part through which the air bag swells and integrally forming the air bag door 2 to develop by expansion pressure at the time when the air bag works forms a center tear line 23 to cross its roughly central part and a first side part tear line 25 and a second side part tear line 27 continued to each other so that crossing parts cross at an angel from 95 deg. to 115 deg. at both ends of the center tear line 23 on an inwall surface of the air bag door 2.