| 摘要 |
PURPOSE:To increase the degree of freedom of builiding-in by providing a lens drive starting magnet in order to interlock release operation and lens drive starting operation and interlocking winding stop releasing operation to this. CONSTITUTION:In a film winding completed state, a lens 1 charges a spring 3 and is in a close-up or infinite position. When a magnet 8 is de-energized by release operation, a member 9 is turned left by a spring 15. This causes the pressing of the pin 4a of a sector gear to be released and the lens starts focusing operation. On the other hand, a winding releasing lever also becomes turnable by menas of a spring 12, by which a winding stop lever 16 is released of the engagement with a drum 18, thus winding of the film becomes possible. Since these eliminate the need for mechanically interlocking the shutter to the film system in the case of using an electromagnetic drive shutter, the advantage of not requiring charging may be utilized to a maximum. |
