| 摘要 |
A portable device has an opening formed in one case of a dual structure, a partitioning member for partitioning the opening, a projection formed on the partitioning member so as to project to a front surface side of the case, and at least two push buttons attached from a back surface side of the case to partitions partitioned by the partitioning member. The push button has a substantially flat plate-shaped push button portion, and a locking portion formed at an outer edge of the push button portion. The locking portion contacts an outer edge of the opening to prevent slip-out of the push button when the push button is attached to the partition from the back surface side of the case. |
