| 摘要 |
A sliding device is provided to maximize vibration force by attaching a vibration unit used as a silent call unit to the metallic sliding device. A second slider(20) is vertically slid along a first slider(10). A vibration unit(40) is attached to the first or second slider, and has a coin or bar type. The coin type vibrating unit is mounted to a hole formed in the first or second slider. The bar type vibrating unit includes a rotating bar and a vibration transmitter. The rotating bar is rotated in an eccentric state. The vibration transmitter transmits vibration generated by rotation of the rotating bar to the first or second slider.
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