Film transporting device of camera and clutch structure and came

Details Film transporting device of camera and clutch structure and came Film transporting device of camera and clutch structure and came

1997-04-04

1998-11-10

Lee, Eddie C.

Photography

With film drive

Mechanical detail

396413, 396418, G03B 100

Patent

active

058358056

ABSTRACT:
A film transporting device transports photographic film by driving a spool of a cartridge and a takeup spool which takes up the photographic film supplied from the cartridge by means of a single motor which is rotatable forward and backward. Unidirectional rotational driving force is transmitted from the motor to the spool and the takeup spool via one planet gear mechanism, and the photographic film is supplied from the cartridge, and then the takeup spool takes up the photographic film. The rotational driving force from the motor in the other direction is transmitted to the spool via the planet gear mechanism, and the photographic film is rewound into the cartridge. When the takeup spool takes up the photographic film, a one way clutch can absorb a difference of the transport speed between the takeup spool and the spool of the cartridge.

REFERENCES:
patent: 3200918 (1965-08-01), Horn
patent: 3667307 (1972-06-01), Kelch
patent: 4401006 (1983-08-01), Sekiguchi
patent: 5113208 (1992-05-01), Stoneham et al.
patent: 5437416 (1995-08-01), Ezawa et al.
patent: 5456419 (1995-10-01), Ezawa
patent: 5521667 (1996-05-01), Egawa et al.
patent: 5555050 (1996-09-01), Wakabayashi et al.
patent: 5568214 (1996-10-01), Stiehler
patent: 5576784 (1996-11-01), Tsunefuji et al.
patent: 5617168 (1997-04-01), Stephenson, III et al.

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