| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing structure of an insulation board, which can assure to fix an insulation board with the minimum influence of positional restriction of electronic components mounted on a board or of fixing restriction of an insulation board by which the electronic components are covered, and can assure to insulate and protect not only thin electronic components but also thick ones. SOLUTION: An electronic component 21 for an interphone is loaded on a board 2, and the electronic component 21 is covered for insulation and protection of the component 21 by the insulation board 1, and then, on the side edge of the platy insulation board 1, a L-shape hook 11 is formed of legs 11a with length (a) corresponding to the height of the electronic component 21 and an arm 11b extending on the square to the legs 11a, and the L-shape hook 11 is bent to hook it to the board 2.
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