Camera having a locking mechanism for preventing accidental open

Details Camera having a locking mechanism for preventing accidental open Camera having a locking mechanism for preventing accidental open

1994-03-15

1995-12-05

Blankenship, Howard B.

G03B 1702

Patent

active

054734010

ABSTRACT:
The present camera uses a film cartridge which is loaded by the drop-in process, the camera comprising a back door with a retaining hole for covering the opening which exposes the area around the aperture for cleaning, and a lock lever comprising a retaining mechanism rotatably supported at the lower portion of a cartridge chamber. With the film cartridge loaded, the lock lever moves clockwise, such that its front end or retaining portion is fitted into the retaining hole provided in the back door. For this reason, while the cartridge is loaded, the user can not accidently open the back door, even if he attempts to open it, preventing the film from being sensitized as a result of operational errors.

REFERENCES:
patent: 4834306 (1989-05-01), Robertson et al.
patent: 5212511 (1993-05-01), Burnham et al.
patent: 5262814 (1993-11-01), Nishio et al.

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