| 摘要 |
PURPOSE:To reduce a film winding mechanism in size and incorporate it in a single-lens reflex camera by fixing an arm which couples a planet gear for winding a film with a sun gear at a fixed position, and releasing the arm from being fixed when perforations of the film corresponding to one frame are counted. CONSTITUTION:The planet gear 1b is coupled with the sun gear 1a through the coupling arm 1c and revolves around it when the sun gear 1a is driven by a driving motor. When the projection part 1d of the coupling arm 1c engages the engagement part 23a of a fixed lever 23 as the planet gear revolves, the position of the rotating shaft of the planet gear 1b is fixed, so the gear 1b stops revolving and only rotates on its axis to drive a film winding gear 11a. Once a detecting means detects the film being fed by the specific number of perforations, an electromagnet 35 is excited to displace the fixed lever 23 and the coupling arm 1c is released from being fixed to stop the winding operation. |
