| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an airbag cleavage groove capable of ensuring expected deployment operation of an airbag lid by being cleaved in the prescribed sequence and its forming method. <P>SOLUTION: When developing an airbag, the cleavage first advances from portions in an inner groove 5 and outer groove 4 where an inner groove rupture groove 8 and the outer groove rupture grooves 6, 7 are formed, and a hinge tear line 9 of the outer groove 4 is cleaved with a little delay. A front lid part 3a and rear lid part 3b are pushed by a cleaved airbag. As a result, the front lid part 3a is cleaved toward the vehicle front part. The rear lid part 3b is cleaved toward the vehicle rear part. <P>COPYRIGHT: (C)2008,JPO&INPIT |
