Photocopying – Projection printing and copying cameras – With developing
Patent
1991-04-11
1992-04-21
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
With developing
355 29, 355 72, G03B 2900
Patent
active
051072963
ABSTRACT:
An apparatus for transporting a photographic paper having an epicyclic gear clutch mechanism for transmitting the rotation of a motor selectively to a magazine and a pair of nip rollers. In auto-loading of the photographic paper, the nip rollers are rotated by the motor to feed the leading end of the photographic paper to the exposure station. If a magazine is exchanged before the whole photographic paper is used, the photographic paper is cut at a position upstream of the last picture frame. In the first paper winding operation, the rotation of the motor is transmitted via the epicyclic gear clutch mechanism to the magazine to wind the unprinted portion of the photographic paper into the magazine. When the leading end of the photographic paper is returned back near the tip rollers, the epicyclic gear clutch mechanism is coupled to the nip rollers. In a second paper winding operation, the nip rollers are rotated reversely until the photographic paper detaches from the nip rollers. According to a preferred embodiment, the rotation of the motor is stopped when the leading end of the photographic paper nears the nip rollers. Immediately thereafter, the epicyclic gear clutch mechanism is coupled to the nip rollers to prevent the photographic paper roll from being rotated by the inertia. When the nip rollers are moved to the nip release position, the leading end of the photographic paper is released from the nip state, thereby allowing the magazine to be unloaded from the magazine chamber.
REFERENCES:
patent: 3500734 (1970-03-01), Lewis et al.
patent: 4819024 (1989-04-01), Kagayama et al.
Matsumoto Takashi
Ozawa Yoshio
Fuji Photo Film Co. , Ltd.
Hayes Monroe H.
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