| 摘要 |
A mechanism which makes it possible to unlock a cartridge compartment cover manually from a body of a camera, when an electric source is short of power, the cover of which is normally unlocked electrically therefrom. An opening is formed in a wall, forming the battery compartment, which is usually shut up from outside by a battery compartment cover that can be opened manually if necessary. One end of a locking nail, the other end of which locks/unlocks a cartridge compartment cover which is unlocked electrically from the camera body at normal use, extends inside the opening. When the battery is short of electric power, the cartridge compartment cover can be opened to take the cartridge out, by opening the battery compartment cover manually first, by taking the battery out of the battery compartment, and by operating the locking nail from inside of the battery compartment manually.
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