| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the number of screws required by firmly binding a case divided into 3 pieces. Ž<P>SOLUTION: A case structure is constituted of: a first case 11; a second case 12; and a third case 13 arranged between the first case 11 and the second case 12, while the case structure is provided with mutually engaging first engage units 11b, 12b, 12c provided on the first case 11 and the second case 12, mutually engaging second engaging units 12d, 13c provided on the second case 12 and the third case 13, and mutually engaging third engaging units 11d, 13d provided on the third case 13 and the first case 11. Specifically, the first case 11 and the second case 12 are made of synthetic resin while the third case 13 is made of a metal. Further, the engaging units 11b, 11d, 12b, 12c, 12d, 13c, 13d are provided on both sides of the cases 11, 12, 13. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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