| 摘要 |
<p>PURPOSE:To stably and operably mount a cassette by connecting freely rotatively a cassette holder and a substrate with one link, fitting freely rotatively a rotational gear meshed with fixed gears provided on the holder and the substrate to the link and coupling the rotational gear and a damper rotor with a coaxial shaft. CONSTITUTION:The cassette is inserted in the holder in the direction of an arrow and pressed down. The link 3 is turned around a pin 3c to allow the gear 5 to rotate along the fixed gear 2a on the substrate side, and the holder 1 is turned around the pin 3a via the fixed gear 1a to be lowered in a prescribed posture. At the time of lifting the holder, the link 3 is turned around the pin 3c by a spring 7 between one end of the link 3 and the substrate 2, so that the holder 1 is lifted up to the inserting position by following the reverse course. At this moment, a rotating load is given from the coaxial damper rotor 5a to the gear 5, so as to reduce the lifting speed, thus alleviating a shock at the time of stopping. By this constitution, the cassette can be mounted with stability and fine operability.</p> |
