| 摘要 |
PROBLEM TO BE SOLVED: To provide a key unit not requiring unnecessary cost in changing a shape of a key top. SOLUTION: The key unit, provided with a seesaw key top 1, key tops 2, 3, and a key sheet part 4a firmly fixing the seesaw key top 1, and the key tops 2, 3 on the surface, is further provided with a rubber base 4 on a rear face having a protrusion for conducting a switch of a switching pattern, getting in contact with the switching pattern formed on a printed board. COPYRIGHT: (C)2006,JPO&NCIPI
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