| 摘要 |
PURPOSE:To reduce a load of a frictional force for starting a film feed and to prevent a film from loosening when its drawing-out is stopped by providing a turning lever and a brake wire in a cassette. CONSTITUTION:When a drawing-out force is not operated to a film F, turning of a film shaft 3 is obstructed by a brake wire 8. When the force is operated to the F by a winding means, etc., a turning lever 4 is turned in the direction as indicated with an arrow 4a centering around a turning shaft 5 by a tension of the F by this drawing-out force. When the lever 4 is turned in the direction as indicated with the arrow 4a, the wire 8 loosens in the direction as indicated with an arrow 8b, a frictional force between the shaft 3 and the wire 8 disappears, the brake is released, and the shaft 3 becomes a turnable state. In a state that the frictional force between the shaft 3 and the wire 8, the F is drawn out and wound successively by the film winding means. |
