| 摘要 |
PURPOSE:To facilitate the unloading of a film by coupling a motor for rewinding with a rewinding transmission system in the middle of blank feeding operation for automatic loading, and powering on the rewinding motor forcibly in the direction of disconnection from the rewinding transmission system in case of a failure in the automatic loading. CONSTITUTION:The rotation of a 1st motor M1 connected to a motor control circuit 660 is reduced in speed by a speed reduction transmission system 600 and a planetary clutch 610 switches the transmission system. Namely, when the motor M1 rotates forward, the clutch 610 operates the shutter charging mechanism 624 and mirror driving mechanism 622 in a mirror box driving mechanism 620 and the phases of their outputs are sent out to the circuit 660 by using a phase detecting means 630. Further, when the motor is in backward rotation, the clutch 610 operates a film rewinding driving mechanism 700 and the output of a rewinding completion detecting means 710 is sent to the circuit 660. If the loading fails during the repetition of this operation, the clutch 610 is switched to disconnect the mechanism 700 and next blank feeding operation is made ready.
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