| 摘要 |
<p>PURPOSE:To detect the incompletion of mounting without fail and to prevent an over-work from being loaded on a driving mechanism by detecting loading completion with first and second detecting parts, stopping a motor and reversely revolving the motor with the completion detection only of the first detecting part. CONSTITUTION:At first, a motor 3 is linked to a first turning lever 4 and a cassette holder 2 is loaded. In the middle of operation, the motor is switched to a second turning lever 5 and the holder is sent to a loading position. The both levers respectively detect turning completion up to a turning edge by first and second limit switches 7 and 8 and the motor 3 is stopped. As a result, the holder 2 is correctly loaded. When the holder is stopped just before the loading position by a trouble in a cassette side, the first lever 4 is stopped simultaneously and the second lever 5 is further turned up to the turning edge by the deformation of a coil spring (not to be shown in a figure). Then, only the limit switch 8 detects the turning completion. At such a time point, the motor 3 is reversely revolved and the cassette is discharged. Thus, the cassette is exactly set and over-load is not imposed on the driving mechanism.</p> |
