Automatic film rewinding device

摘要

An automatic film rewinding device in which erroneous rewinding is positively prevented. The film cartridge carries an identifying code indicative of the number of frames of films to be exposed. A number-of-wound-frame dial carries a code dial with which the number of wound frames can be detected. When the detected number of frames contained in a cartridge and the number of wound frames has a predetermined relationship, the motor driving the rewind mechanism is actuated. The motor is stopped when it is detected that the film has been completely rewound into the cartridge.