| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control unit capable of preventing an appearance from being deteriorated by operation of push buttons. Ž<P>SOLUTION: A housing unit 21 is provided on the top face of a base 2 in this control unit 1. The housing unit 21 is composed of a plurality of housing parts 211. In the housing unit 21, the upper part 21a on its peripheral wall is magnetized, and magnetism of its inside surface 21b is set as an N-pole. Meanwhile, in each push button 3, the outside portion 31a of a knob is magnetized, and magnetism of its outside surface 31b is set as an N-pole. Thus, adjoining push buttons 3, 3 repel each other, and each push button 3 repels each housing part 211. Accordingly, when each push button 3 is pressed up to an original position by a tact switch, it is straightly positioned by the repellent force. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
