| 摘要 |
PURPOSE:To facilitate the loading and unloading of a film cassette to and from a camera by composing a spool for a film takeup of a single cylinder which moves freely by a thrust, and engaging this single cylinder with the film takeup shaft of the camera. CONSTITUTION:The opening/closing lid 9 of the camera body 6 is opened and a cassette body 1 is inserted into the cassette storage chamber 7 from its rear in the optical-path direction and stored at a specific position. When the opening/ closing lid 9 is closed, a lock lever 51 rotates from a position indicated by an alternate long and two short dashes line to a position indicated by a solid line in a figure to unlock a slide plate 39. Therefore, the slide plate 39 is slid upward by a spring 44, a press-up pin 45 presses the single cylinder 21 upward, and the engaging pawl part 25 of the single cylinder 21 engages the pawl part 47 of the film takeup shaft 46. Further, when the slide plate 39 is slid downward to open the lid 9, the slide plate 39 is locked in a downward state and the cassette body 1 is taken out. Thus, the loading and unloading of the cassette are facilitated. |
