| 摘要 |
PURPOSE:To simplify the structure of a device by coupling a shutter drive ring by holding a coupling pin, provided to the lens-side shutter drive ring, between a shutter pawl and a shutter set pin. CONSTITUTION:At the beginning of the equipment of an interchangeable lens to a camera body, a lens lock pawl 23 is pushed clockwise by a lens-side bayonet pawl 3. Then, a shutter drive pawl 21 is pushed to turn clockwise and its pawl part separates from the movement area of a lens-side coupling pin 11. In this state, turning the interchangeable lens counterclockwise permits the pawl part of the pawl 23 to disengage from the pawl 3 and fall into a notch 4. Consequently, the charged force of a spring rotates the pawl 23 counterclockwise to make the pawl 21 free. The pawl 21 rotates counterclockwise by a spring 22 to nip the lens-side coupling pin 11 meeting a shutter set pin 18. Thus, the camera-side shutter drive ring and lens-side drive ring are coupled together. |
