Button key assembly and electronic apparatus that employs the button key assembly

Button keys (36, 37, 39), resilient supports (36f, 36g, 39d, 39e, 37g, 37f) and a frame (44) are molded in one piece such that the button keys are resiliently movable and are spaced apart by a gap. Each of the button keys includes an engagement portion (36d, 39c, 37d, 36e, 37e). A case (33) includes a button hole (56) formed therein. The case is assembled to the frame (44) such that the button keys are received in the button hole. After the case (33) has been assembled to the frame (44) such that the plurality of adjacent button keys are received in the button hole (56) and such that the engagement portion abuts a perimeter portion of the button hole (56), the second gap (T2) being smaller than the first gap (T1).