Portable communication unit

Details Portable communication unit Portable communication unit

2006-05-02

2006-05-02

Lee, Kyung (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Indicators

C200S317000

Reexamination Certificate

active

07038152

ABSTRACT:
A key sheet provided with a plurality of buttons formed thereon, a metal dome sheet, and a printed board are incorporated in a stacked state into a lower body provided with an upper case and a lower case. A plurality of protrusions for internally supporting the upper case are provided on the key sheet. By virtue of the above construction, even when external pressure is applied to the upper case, the upper case is supported by the plurality of protrusions to prevent the upper case from being deformed or curved, and buttons can be prevented from being pushed by the upper case. Therefore, a portable communication unit can be realized which can reduce size and weight without increasing the number of components and can protect the body and electronic components, for example, against impact and external pressure.

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