| 摘要 |
Apparatus for supplying tape from a roll with two alternately driven tape feed rollers and a motor driven drive system which produces a rotational movement has overrunning clutches arranged between the motor drive system and the tape feed rollers, respectively, said clutches making a continuous change of materials removed from a supply roll to another roll possible with a reversal in the rotational direction of the drive motor, whereby in one direction of motor rotation only one overrunning clutch makes a connection with its feed roller and in the other direction of motor rotation only the other overrunning clutch provides a rotational connection to its feed roller. |
