| 摘要 |
PURPOSE:To obtain small-sized constitution and high precision by coaxially arranging a moving coil rotor, a sector lever, and a release lever on the 1st shaft of a shutter ground plate which is off an optical path, and arranging a lock lever for controlling securing relation by engaging respective members in press contact on the 2nd shaft between the 1st shaft and a setting plate. CONSTITUTION:A setting plate 2 has a groove part 2a engaging the 1st dowel Ia of a shutter ground plate 1, and this plate 2 is movable and energized to left by engaging a spring 3 with its spring hook 2b. A lock lever 4 is pivoted on the 2nd shaft 1b of the ground plate 1 and has a pawl part 4b, which engage the pawl part 5a or 5b of a release lever 5. When the pawl part 4b of the lever 4 is between the position for engagement with the pawl part 5a of the release lever 5 and the position for the engagement with the pawl part 5b, this engages the pawl part 6a of a selector lever 6 to inhibit the lever 6 from rotating clockwise, and when an opening stop pawl 4c is disengaged from the pawl part 6, the lever 6 is permitted to rotate clockwise. |
