| 摘要 |
PROBLEM TO BE SOLVED: To reduce the depth of a panel which covers a common support part by improving a common support part supporting keys. SOLUTION: The common support part 6 which supports the keys 11, 12, and 13 is fixed on a frame 2. On the common support part 6, a component receiving projection part 61 is formed. The top surface of the component receiving projection 61 is formed in a cylindrical surface and the rear end of a circuit board 4 is fixed with a boss 2v; and the front end part of the circuit board 4 is supported and fixed with the component receiving projection part 61 and the circuit board 4 is shifted toward the key 11. A hole having a tapered internal surface is bored in the common support part 6. A positioning pin is formed inside the tip of a panel 3. The positioning pin is inserted into the hole for positioning. The hole is tapered, so while the strength of the circumference of the hole is maintained, the depth of the common support part 6 is reduced. |
