| 摘要 |
PROBLEM TO BE SOLVED: To provide a withdrawal structure, from an apparatus unit, of a flat type aggregate conductor allowing thinning of the apparatus unit, a keyboard unit including the withdrawal structure, and a portable information apparatus including the keyboard unit.SOLUTION: A keyboard unit 12 includes a withdrawal structure 10 of a flexible flat type aggregate conductor 28. The withdrawal structure 10 employs a protective sheet 36 disposed on one surface of the keyboard unit 12 also as an insulation sheet for covering at least a part of one surface of a conductor pattern 32d. Thus, one surface of the conductor pattern 32d formed on the flat type aggregate conductor 28 is covered with an upper insulation sheet 32a of a membrane sheet 32, and a part of the other surface is covered with the protective sheet 36. |
