| 摘要 |
PROBLEM TO BE SOLVED: To reduce a space and a cost and prevent the breakdown and malfunction of an electric element due to static electricity. SOLUTION: This operation button device, arranged near a bent portion of a cover having the bent portion, comprises a plurality of operation buttons (1a, 2a), resetting portions (1b, 2b) located on the outer peripheries of the operation buttons (1a, 2a) in the cover for resetting the operation buttons (1a, 2a) to original positions, and base portions (1c, 2c) located at the ends of the resetting portions (1b, 2b) for supporting the resetting portions (1b, 2b). The base portions (1c, 2c) are arranged overlapping each other to make a level difference between the operation buttons (1a, 2a).
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