Film cartridge loading mechanism for photographic camera

Details Film cartridge loading mechanism for photographic camera Film cartridge loading mechanism for photographic camera

1996-03-21

1996-12-10

Mathews, A. A.

Photography

Camera detail

Body structure or housing

396513, G03B 1702, G03B 1726

Patent

active

055835988

ABSTRACT:
In a photographic camera, a film cartridge having a roll film rolled around a spool in a cartridge body and a shutter member for opening and shutting a film exit slit is loaded in a cartridge chamber. A chamber lid is mounted on the camera to be swung between an opening position where it opens the entrance opening to the cartridge chamber and a closed position where it shuts the same. A spool pressing member provided on the inner side of the chamber lid pushes an end of the spool of the film cartridge at a predetermined pressure when the chamber lid is closed. An arm member is mounted on the inner side of the chamber lid at one end to be swung about the end away from and toward the chamber lid and urged away from the chamber lid by a spring at a pressure larger than the predetermined pressure. A pressing portion provided on the free end of the arm member pushes the cartridge body inward of the cartridge chamber as the chamber lid is swung toward the closed position while the pressing portion slides on the end face of the cartridge body with the arm member swung toward the chamber lid overcoming the force of the spring so that the pressing portion rests on an arm rest portion away from the cartridge body when the chamber lid reaches the closed position.

REFERENCES:
patent: 5155514 (1992-10-01), Tamamura
patent: 5305039 (1994-04-01), Dassero
patent: 5394213 (1995-02-01), Hazama et al.
patent: 5483310 (1996-01-01), Tanii et al.
patent: 5483314 (1996-01-01), Lawther et al.
patent: 5495310 (1996-02-01), Takatori
patent: 5500705 (1996-03-01), Stephenson, III
patent: 5510867 (1996-04-01), Wakabayashil
patent: 5526084 (1996-06-01), Kataoka et al.

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