| 摘要 |
A photographic film cassette includes a spool housed within a cassette shell in which rotation of the spool causes a film leader of a photographic film to advance externally of the cassette shell. Circumferential lips are formed on flanges of the spool to project toward a film roll, and contact edges of an outermost turn of the film roll to prevent the film roll from loosening. A separating claw mechanism is formed in a film passageway defined by the cassette shell, and separates the film leader from the film roll to guide the film leader to a film passage mouth. Guide projections are formed inwardly from the separating claw in the cassette shell, and press peripheral edges of the flanges to be spaced from the film roll. The film roll is released from the circumferential lips, while avoiding loosening of the film roll.
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