| 摘要 |
PURPOSE:To decrease the number of parts, to make a device small-sized, thin and light, to operate it even in case of low voltage, and to reduce power consumption, by constituting the device of one motor and one small-sized electromagnet by utilizing a planet gear device. CONSTITUTION:Rotation of a motor 1 is transferred to a sun gear 14 of a planet gear speed reducing device held to a fly-wheel 7 and a shaft 19 by a rubber belt 16. When an electromagnet 49 is electrified, cam groups 61-64 are operated. When a head driving lever 74 contacting with the head driving cam 61 is positioned so as to correspond to the smallest radial position of the head driving cam 61, it turns counter clockwise by energizing of a head driving torsion spring 95. As a result, a head substrate 77 moves. When the head substrate 77 moves and stops, a recording/reproducing head 98 is made to press-contact with a tape, and a pinch roll is made to press-contact with a capstan shaft 8. |
