| 摘要 |
A push-button apparatus includes a main body having at least two inward walls parallel to each other and a push-button having two outward walls parallel to each other. The push-button is arranged within an inner space defined between the two inward walls of the main body. A recess is arranged at any one of the main body and the push-button. A rotation axis is arranged at the other of the main body and the push-button and rotatably fitted into the recess. A front end of the rotation axis pressingly comes into contact with a bottom of the recess by virtue of elastic return force derived from materials of the push-button.
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