| 摘要 |
PURPOSE:To exactly execute 1 frame feed and very low speed frame feed, by providing a film frame feed switch, and constituting so that a prescribed rotary position can be detected exactly from the reference positions of a rotary shutter and a member driven by this shutter. CONSTITUTION:When an operating lever 12 is depressed downward, a stop lever 10 moves a claw pin 7 and a claw 5 to the right through a lever 11, as a result, a transverse cam 3 becomes non-function, and film feed is stopped. In this case, rotation of a shutter 1 and a pulley 16 is detected by a sensor 31, and a pulse synchronizing with rotation of the shutter 1 is generated. When the frame feed switch is operated in this static position, a plunger 15 is operated for a prescribed time by making it synchronize with rotation of the rotary shutter 1, the claw 5 is fitted into a perforation 6a of a film 6, the film is fed by 1 frame whenever the switch is operated, and after 1 frame has been fed, the plunger 15 is turned off, and the film is stopped. |
