| 摘要 |
PROBLEM TO BE SOLVED: To form a design pattern free from the scatter of broken pieces upon the occurrence of a cleavage, easily and to arbitrary design by forming the design pattern by irradiation of a laser beam to the surface of a molding. SOLUTION: A resin material 10 is molded into a desired shape, depending on the form of an airbag device as an attaching object, and formed into a molding. Then, laser beams 3 are applied to the surface of the compact for forming a design pattern 14. An airbag cover 1 is thereby provided. In this case, the resin material 10 to form the airbag cover 1 is discolored, due to the irradiation of the laser beams 3. When the irradiation locus of the laser beams 3 is controlled, therefore, a design pattern 13 can be easily formed on the surface of the airbag cover 1. The design pattern 13 is formed via the discoloration of the resin material 10 itself. Thus, broken pieces do not scatter, upon the cleavage of the airbag cover 1. |
