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Patent Searching and Data


Title:
FILM UNIT WITH LENS
Document Type and Number:
Japanese Patent JP3471110
Kind Code:
B2
Abstract:

PURPOSE: To prevent photographing from being executed exceeding a film exposure part and to house all the photographic film inside a cartridge by preventing a locking lever from rotating to a winding stop position by making a detection pawl enter a perforation formed adjacently to a final frame.
CONSTITUTION: On the loaded photographic film 26, two perforations are arranged for each one frame at two kinds of intervals alternately at the film exposure part which can be utilized for photographing and the perforation is formed one by one adjacently to the first frame and the final frame at a film trailing edge and a film leading edge which can not be utilized for photographing in the same arrangement as the film exposure part. A number-of- frame display board 50 is stepped by a specified scale by film winding operation after finishing photographing to the final frame, and a cam 50b for preventing the stop of winding is engaged with the locking lever 46 in a state where a shutter driving lever 45 is held in a charged state interlocked with the stepping, so that the lever 46 is prevented from rotating to the winding stop position.


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Inventors:
Kenji Negishi
Hiroshi Katsura
Kazuo Ogoyama
Application Number:
JP5009895A
Publication Date:
November 25, 2003
Filing Date:
March 09, 1995
Export Citation:
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Assignee:
Fuji Photo Film Co., Ltd.
International Classes:
G03B17/42; G03B17/00; G03B17/04; G03C3/00; (IPC1-7): G03B17/42; G03B17/04; G03C3/00
Domestic Patent References:
JP5273637A
JP511325A
JP4356034A
JP63115134U
Attorney, Agent or Firm:
Kazunori Kobayashi