| 摘要 |
<p>PURPOSE:To detect the moisture of a rotary drum quickly and surely and then to start travelling a tape after the moisture stuck to the drum disappears by displacing a dew sensor to the vicinity of the rotary drum when the water content of the rotary drum is detected and to the position difficult to be dried after the moisture is detected. CONSTITUTION:When a tape cassette is loaded, a loading motor 13 is rotated in a clockwise direction, gears 151, and 152 are rotated to a loading side via a rotation transmission mechanism 14, inlet and outlet post units 181 and 182 are moved in the direction of an arrow A along guide grooves 171 and 172, the tape is pulled out from the tape cassette and wound to a rotary drum 11. In accordance with the rotations of the gears 151 and 152, an arm 23 is rotated in the direction of an arrow C, a dew sensor 20 is positioned on the vicinity of the drum 11 and the sticking of the moisture to the drum 11 is detected. Based on the detected signal, a tape travelling prohibit signal is sent to a loading mechanism 12, the motor 13 is slightly moved in an anti-clockwise direction and a sensor 20 is moved to the position at the lower side of a chassis 10 where a drying is difficult by the rotations of the gears 151 and 152.</p> |
