| 摘要 |
PURPOSE:To omit an outer cylinder for winding by bending a spring plate to press it against a film and winding the film in case of inserting the spring plate into a driven shaft and engaging the driven shaft with a driving gear to drive the driven shaft. CONSTITUTION:The driven shaft 1 is arranged in a film case 3 and the film 4 is fitted to a film fitting body 2. The spring plate 6 is inserted into a recessed part 6b formed to insert the spring plate into the driven shaft 1, one end of the spring plate 6 is fitted to a fixed fitting part 6a and the other end is fitted to a spring plate slidably fitting body 10. A bar 9 is extruded from a cassette body 8 and the driven shaft 1 is projected and engaged with the driving gear 7. When the driven shaft 1 is slided to the driving gear 7, the fixed fitting part 6a is moved by a distance l, the fitting body 10 collides against a cover part 3b of the case 3 to stop the sliding and the spring plate 6 suppressed at its movement is bent and pressed against the film 4. Since the film is wound around the driven shaft by using the bending of the spring plate, the outer cylinder an be omitted and the structure can be simplified.
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