| 摘要 |
The present invention relates to a motion picture camera using a film cartridge in whose film winding up shaft a reverse preventing mechanism for preventing the reversed rotation of the winding up shaft is provided whereby the reversion preventing mechanism is released by pushing the central part of the winding up shaft along the axial direction, being characterized in that on the part on which the film cartridge is loaded a movable releasing mechanism for releasing the film reversion preventing mechanism is provided in such a manner that at the time of loading a film cartridge in the motion picture camera the releasing mechanism is recessed from the part on which the film cartridge is to be loaded to a position at which the loading of the film cartridge is possible by means of a control mechanism, while after having loaded the film cartridge the film reversion preventing mechanism is returned to a position at which the film reversion preventing mechanism operates.
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