| 摘要 |
<P>PROBLEM TO BE SOLVED: To assure high rigidity of a case structure by enhancing the bonding strength of a lower case in the case structure constituted by bonding the cases separated to and constituted by three pieces. <P>SOLUTION: The case structure into which a keyboard unit KBU is internally packaged is constituted by building the upper case UC, the front side lower case LCf, and the rear side lower case LCr. At this time, in the relation between the front side lower case LCf and the rear side lower case LCr, wall parts along approximately perpendicular direction of a pendent rib 26c and a rear wall part 33c, a rising part 26a and a front wall part 35a, a falling part 26a and a rib 31, the pendent rib 26c and a rear wall part 35c, a rib 26b3 and a rising part 42 oppose in proximity to each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
