| 摘要 |
<p>PURPOSE:To suitably perform automatic stopping and program-searching of a tape by detecting the specified positions in the overall length of the tape through transmission of rays. CONSTITUTION:Light emitting elements or photo detectors are contained in guide pins 7, 9 made in hollow constructin. In correspondence to these, photo detectors or light emitting elements 9, 10 are opposedly disposed on the opposite side with respect to a tape 4. When the transparent guide tape 42 at the final end of the tape 4 arrives, the light which had been shielded by the magnetic material film of a recording part 41 transmits through the tape 42 and arrives at the photo detector 9. Hence, the automatic stopping or program-searching of the tape may be suitably accomplised by the signal emitted by the element 9.</p> |
