| 摘要 |
<p>PURPOSE:To simplify the driving mechanism and to reduce the cost, by using a driving source of a cassette loading mechanism in common to that of a tape loading mechanism, in a cassette loading of a VTR. CONSTITUTION:A torque required for cassette loading and tape loading is denoted respectively as Ta, Tb. In loading a cassette from an insertion hole, a cassette loading detecting switch is turned on, a driving motor is driven forward and a differential gear 3 is driven, the 2nd revolving shaft 7 is stopped, only the 1st revolving shaft 6 is turned and a cassette holder 10 is guided from the inserting position to the loading position. Further, the holder comes to the cassette loading position, since a projecting pin 10a is locked to the end of the guide groove, the load becomes very large and the relation of Ta>Tb is obtained. When the tap loading is attained successively, the 1st revolving shaft 6 is stopped and the 2nd revolving shaft 7 is turned, then a loading disc 18 is turned by pushing out a roll 19, the tape loading is attained and when the loading is finished, the power application to the driving motor 1 is interrupted.</p> |
