| 摘要 |
PURPOSE:To perform releasing and second time setting with a single electromagnet by releasing the detention of the members associated to automatic focusing through conduction of electricity to the electromagnet, opening a shutter after automatic focusing and closing the shutter through demagnetization of the electromagnet. CONSTITUTION:When a start switch SW2 is turned on by downward sliding of a release plate 2, an electromagnet 20 is conducted with electricity to turn an iron piece lever 21 and a start detention lever 25 to the left. When a start plate 42 slides to the right, an automatic focusing detention lever 35 turns to the right, and an automatic focusing set plate 38 slides to the right, by which the automatic focusing mechanism is operated and focusing is accomplished. At the final of the movement of the set plate 38, a detention lever 48 turns to the left to release the detention of a switching lever 51, thereby opening the shutter. When the electromagnet 20 is demagnetized after exposure, the lever 21 turns to the right and the lever 51 turns to the left, thereby closing the shutter. Thereby, releasing and second time setting are accomplished by the single electromagnet. |
