| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interior trim material for automobile which is free from burrs when a groove to be torn is cut. <P>SOLUTION: A groove 5 to be torn is formed on an inner surface of an interior trim material body 4 covering an air bag derive 1 so that a little remaining uncut part 5f is generated between a processing start point (a) of the groove 5 to be torn and a processing end point (b), or between an intermediate portion of the groove 5 to be torn and the processing start point (a) and between an intermediate portion of the groove 5 to be torn and the processing end point (b). Thus, when the groove 5 to be torn is cut, there is neither rapid change in cutting load nor slight positional change of a cutting tool 9. Accordingly, no raising burr is generated in the groove 5 which has been already cut. By virtue of this, when the bottom thickness (remaining thickness) of the groove 5 to be torn is inspected by an automatic inspection means, judgement errors in such inspection, due to burrs, can be prevented. <P>COPYRIGHT: (C)2004,JPO |
