| 摘要 |
A photographic still camera uses a film system 10 that includes a paper backed film strip wound in a supply coil 20 with the leading end of the paper backing 12 attached to a take-up spindle 31 in a take-up container 30 that can be separated by varying distances from supply coil 20. Supply coil 20 is held between flanges 21 having outwardly extending pins 29 eccentric to the supply coil axis, and take-up container 30 has a gear 46 on its take-up spindle 31. The camera cooperating with such a film system includes a supply recess 40 and a take-up recess 60 configured for respectively receiving supply coil 20 and take-up container 30. A camera gear 47 in take-up recess 60 meshes with take-up spindle gear 46 and rotates one revolution for each film advance. Opposite sides of the supply recess have ledges 41 arranged for engaging eccentric pins 29 on supply coil flanges 21 to orient supply coil 20. Ledges 41 enable supply coil 20 to roll back to take up any excess initial paper backing 12 extending between supply coil 20 and take-up container 30 when film system 10 is loaded into the camera. Ledges 41 also hold flanges 21 in proper position for rotationally unwinding the supply coil relative to the flanges as the film strip advances through the camera.
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