| 摘要 |
PURPOSE:To linearly move an operation button part with a simple structure while brightly lighting up the operation button part by an emitter by mutually twisting a plurality of flexible arms for connecting the operation button part with a plurality of fixed parts. CONSTITUTION:When the top face wall 23A of an operation button part 23 is pushed from above, flexible support arms 24, 25, 26 are twisted inward, and the operation button part 23 is linearly moved down to press and drive an operation switch 17 by a protruding part 28. At this time, an emitter 18 is lighted to illuminate the top face wall 23A of the operation button part 23. When the pressing force against the operation button part 23 is released, the return force of the flexible arms 24, 25, 26 accumulated by the twisting motion acts on the operation button part 23, and the operation button part 23 is quickly returned to the original position. |
