| 摘要 |
<p>PURPOSE:To find out the ejection of an article such as a recording medium, etc., and the abnormality of a housing mechanism at early stages by counting the moving distance of a hand after detecting a flag with a sensor. CONSTITUTION:When a medium 11 is taken out, the hand 2 is driven from an initial position to a storage 1 with a motor 4 via a belt 3, and when the flag 9 is detected with the sensor 10, a control part 7 drives the motor 4 only for constant time decided in advance, then, a stopping state is set. A position P2 where the flag 9 is detected with the forward completion sensor 10 is set at the position (P) this side before the true forward completion position(targeted position) P1 of the hand 2. And the flag 9 of the hand 2 is detected at the position P2 with the sensor 10, and the rotation of the motor 4 i.e. the forward progressive distance of the hand 2 is counted with the operations of an encoder 5 and a counter 6, and when it exceeds the value of a distance P, the stoppage of a motor driving part 8 is controlled, which prevents collision occurring. In such a way, the stoppage of the hand 2 can be accurately detected.</p> |
