| 摘要 |
A key pressing device is formed of an elastic member in a generally L-shape, and an engagement claw is formed on a bottom wall portion of the elastic member, and a hinge is formed on upstanding leg portions of the elastic member, and a key button is formed on the hinge. A case to which the key pressing device it mounted, includes an engagement portion for receiving the engagement claw of the key pressing device, mounting base portions and stoppers, and a hole for receiving the key button. The engagement claw of the key pressing device is brought into engagement in the engagement portion on the case while inserting the key button into the hole, thereby effecting a mounting operation.
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