To provide a magazine capable of making the circumferential speed of a transporting roller pair during delivery of a photographic paper material from a photographic paper roll higher than the circumferential speed at least at the maximum roll diameter of the photographic paper roll and making the circumferential speed of the transporting roller pair during rewinding of the photographic paper to the photographic paper roll lower than the circumferential speed at least at the minimum roll diameter of the photographic paper roll in spite of having a simple constitution.
The magazine constituted by interlocking the transporting roller pair and a reel set in a case to a drive shaft has a speed increasing gear section and a reduction gear section in a driving force transmission route for the purpose of transmission of the driving force of the drive shaft to the reel and is interposed with a rotating speed changeover mechanism which makes the circumferential speed at least at the largest diameter of the photographic paper roll supported at the reel across the reduction gear section lower than the circumferential speed of the transporting roller pair during the forward rotation of the drive shaft accompanying the feeding of the photographic paper and makes the circumferential speed at least at the smallest roll diameter of the photographic paper roll higher than the circumferential speed of the transporting roller pair by means of the speed increasing gear section during the backward rotation of the drive shaft accompanying the rewinding of the photographic paper.
JPH01105937 | PACKAGING BODY FOR SHEET FILM |
JP2000019587 | FILM UNIT WITH LENS AND PRODUCTION |
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