| 摘要 |
PURPOSE: A touch pad type mouse formed being formed to a keypad of a keyboard is provided to add a mouse function on the keypad of the keyboard and utilize a function of piezo or a mouse function of the touch pad. CONSTITUTION: A shaft(21) is moved downwardly when a key is pressed and then contacted to a circuit. A piezo is formed at a junction part of male and female parts at the circumference of the shaft(21). The pizeo is formed at the female part(22) and a male part(23) at the circumference of the shaft(21). The shaft is inclined and formed as an inverse triangle type. When a key is pressed by a user, the junction of the piezo part is come out and thereby the keyboard did not operated as a mouse. A thin film formed by piezo is used on the keyboard.
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