| 摘要 |
PURPOSE:To reduce the extent of a tape at transition stage from running to a stop mode, to prevent a signal from being erased, and to eliminate damage on the tape, by controlling the braking of a tape reel in accordance with the angle of rotation of a driving cam. CONSTITUTION:With a stop button pressed, when cams 142 and 162 rotate from 205-degree to 80-degree angle of rotation, an idler gear 86 engages with a gear 64a and tape leading-out members 182 and 183 move to wind the magnetic tape around a payoff reel hub 14 without any sag. At this time, a brake 112 is separated from a take-up reel turntable 10, but the tape has a large angle of winding around a head drum 186, etc., and the length of the wound tape corresponds to only a sag due to the movement of members 182 and 183. When the angles of rotation of the cams 162 and 142 are about 65-95 degrees, a take-up side brake 112 abuts on a take-up reel turntable 10 and the tape is not wound at a payoff side 16. When the cams rotate by 40 degrees, the leading-out members 182 and 183 return to stop mode positions and when they further rotate, a payoff side brake 122 is also pressed against a reel turntable 12; and the motor is stopped at a 0-degree angle. |
