| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rational technology for constructing an airbag cover for covering a vehicle airbag, and related technologies thereof. <P>SOLUTION: The three-dimensionally molded plate-shaped airbag cover 100 is subjected to machining by using an ultrasonic machining edge 216, and it is formed with a linear groove 102 continuously formed with a predetermined depth within the thickness thereof. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
