| 摘要 |
In the operation input device 1, the strip-shaped touch sensor 20 is provided on the side surfaces 13, 14, 15, which are parallel with the Z axis, of the case 10 shaped like a rectangular solid. The normal line to the portion of the strip-shaped touch sensor 20 on the side surface 13 and the normal line to the portion thereof on the side surface 15 are in directions opposite from each other.
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