| 摘要 |
PURPOSE: A pulley device for installing a speaker is provided to improve the service life of a speaker by installing the speaker using a pulley. CONSTITUTION: A pulley device for installing a speaker comprises a body(100) and an operating unit(200). A polygonal flange(110) is formed in the body. A polygonal column(120) is formed at the upper end of the flange. A foldable part(130) is formed at the upper end of the column. The operating unit comprise a working motor(210) formed outside the column. A motor shaft drum(214) is formed at the end of a motor shaft(212). A motor wire(216) wound in the motor shaft drum is formed. |
