| 摘要 |
PURPOSE:To surely perform feeding of a film, by moving a feeding roller with the revolution of a motor so that the roller can be approached to a cartridge and disconnected from it. CONSTITUTION:When a motor 20 rotates, a feeding roller and a planet gear 25 tend to turn to the same direction. But since the rotation of a brake gear 26 is blocked with a friction member (not shown) held with a spring 29, the planet gear turns around the circumference of the brake gear. Thus, when a shaking plate 22 fixing a motor is turned and moved to a prescribed position, a feeding roller 9 fixed to a motor rotating shaft 21 reaches a position in contact with a leader tape in a cartridge 8. Through the pressing of the feeding roller on the leader tape, the brake gear turns against the friction force, the feeding roller 9 turns and the leader tape is fed. When the motor is reversed through the detection of tape winding, the shaking plate and the feeding roller return to the original position. |
