| 摘要 |
PURPOSE:To simplify the switching mechanism of a motor driving camera in which the film leader part is idly advanced, by providing a clutch to perform the switching between an idle feed and a 1-frame feed of film. CONSTITUTION:The rotation of a motor M is transmitted to a charge gear 2, an interlocking gear 4 and a control gear 17 via a gear train 1. While a film is loaded into a camera, the electric power is supplied to the motor M while the gear 2 has a one rotation and by a coaction of a back cover 20 and a switch S3 interlocking a control lever which is driven by a control cam. Thus a mobile bar 7a pushes a pin 4a to feed the film by two frames. After a release, the electric power is supplied to a motor by switches S1 and S2 interlocking the shutter action. In this case, a lever 13 pushes an end 7b of the bar 7a and the other end 7a does not push the pin 4a. Thus a pin 4b is pushed after a 1/2 rotation of the gear 2 to wind the film by one rotation. |
