| 摘要 |
PURPOSE:To decrease the number of parts, to facilitate assembly and size reduction, and to reduce the cost by simplifying the structure of an operating mechanism. CONSTITUTION:The operating mechanism 31 consists of a film winding part 32, a lever 33, a ratchet 34, a T-shaped claw 35, etc. The winding part 32 consists of a gear 32A which is partially at the outside of a case 22 and rotated with a finger and a pinion 32B which engages the internal gear of a film 41, and is fitted freely rotatably to the case 22. One end of the plate type lever 33 is at the outside of the case 22 and has a release button 38 and the other end is pivoted rotatably on the case 22 with a pin 36 and energized by a spring 37. The center of the ratchet 34 is supported pivotally on the case with a pin 42, a groove 34A is formed at one end and engaged with a pin 39, and an engaging claw 34B at the other end engages the gear 32A. A claw 35 consists of a leg 35A, a perforation claw crossing the leg 35A orthogonally, and a shutter claw 35C which extends in the opposite direction from the claw 35B and crosses the leg 35A orthogonally, and is energized by a spring 43 forward and in the opposite direction from the run direction of the film 41.
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