Title:
FILM MOVEMENT PREVENTING MECHANISM AND FILM UNIT WITH LENS
Document Type and Number:
Japanese Patent JP3665124
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve image quality by preventing the movement of a film during an exposure.
SOLUTION: In the end part, on the side of a take-up knob 5 of a top board 68, a U-shaped release lever 71 and a T-shaped turning lever 72 are formed. When a shutter button is half depressed, a pressing member 18a integrally molded with the pressing rod of the shutter button presses one end part, 72c of the tuning lever 72. This tuning lever 72 is turned counterclockwise by the elastic deformation of a connected part, 72a and the other end part 72b presses the top end part 71b of the release lever 71. This release lever 71 is turned clockwise by the elastic deformation of a connected part 71a and a side part, 71c pushes a reverse turn preventing pawl 37 to a rear cover side. The reverse turn preventing pawl 37 is turned clockwise, to release engagement with the row of teeth 5a of the take-up knob 5. Thus, the spool of a cartridge is free to turn and the tense state of a photographic film is eliminated, so that even if vibration such as curling contraction is generated in the photographic film, it is stabilized before the shutter is opened.
Inventors:
Osamu Noguchi
Hiroshi Sakata
Hiroshi Sakata
Application Number:
JP1668596A
Publication Date:
June 29, 2005
Filing Date:
February 01, 1996
Export Citation:
Assignee:
Fuji Photo Film Co., Ltd.
International Classes:
G03B1/18; G03B17/00; G03C1/795; G03C3/00; (IPC1-7): G03B17/00; G03B1/18; G03C1/795; G03C3/00
Domestic Patent References:
| JP57063516A | ||||
| JP63115131U | ||||
| JP7218996A | ||||
| JP9068743A |
Attorney, Agent or Firm:
Kazunori Kobayashi