| 摘要 |
<P>PROBLEM TO BE SOLVED: To thin a resin molding, to lighten the weight thereof, to maintain high rigidity, and to attain an appearance enhancement effect such as prevention of a sink, at the same time. Ž<P>SOLUTION: This resin molding (panel 1) constituting at least one part of a casing includes a thermoplastic resin cellular material formed to be 1.05 or more to 2.0 or less of expansion ratio, and has ribs 4 having 2.0 mm or more to 10.0 mm or less of height from a root portion 4a positioned on a surface 2a, on one of the surfaces 2a of a base plate 2 having 0.5 mm or more to 2.0 mm or less of plate thickness, and total of projection areas of the ribs 4 onto the surface 2a is 2.5% or more to 20.0% or less of the whole area. The ribs 4 are provided lattice-likely on the surface 2a. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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