| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed wiring board capable of preventing durability of electric appliances from being deteriorated owing to stress applied to a screwed and fixed portion. SOLUTION: A slit 1d is provided between a screwing hole 1a and an electric circuit 1b. In accordance with the printed wiring board 1 constructed as above, even if stress is applied to four corners when the printed wiring board 1 is clamped at four corners with screws, it is possible to prevent the stress from being transmitted to the electric circuit 1b because the stress is blocked by the slit 1d. Particularly, if the slit 1d is constructed such that arrows are extended from the center of the screw hole 1a radially toward both ends of the slit 1d within a range to avoid the electric circuit 1b, then even if the stress is transmitted as indicated by the arrows, it is prevented from being transmitted to the electric circuit 1b. COPYRIGHT: (C)2007,JPO&INPIT
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