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    • 2. 发明授权
    • Automatic film winding device for a camera
    • 胶卷自动卷绕装置
    • US5625431A
    • 1997-04-29
    • US375703
    • 1995-01-20
    • Mikio KoganeYoshikazu MajimaKazuo Daigo
    • Mikio KoganeYoshikazu MajimaKazuo Daigo
    • G03B17/00G03B1/18G03B17/42G03C3/00G03B1/00
    • G03B1/18G03B17/425
    • A film winding unit is removably attached to a film unit so as to engage a coupling gear with a film winding wheel. The coupling gear is connectable to a gear train through a clutch member. While the film winding wheel of the film unit is unlocked, the clutch member is placed in a power transmitting position for transmitting rotational movement of a motor to the coupling gear through the gear train. Upon the film winding mechanism being locked, a large load is applied to the clutch member, so that the clutch member slips into a disconnecting position to disconnect the motor from the coupling gear. In cooperation with the movement of the clutch member into the disconnecting position, a motor inactivating device inactivates the motor. After a release button of a film winding unit is depressed to depress a shutter button of the film unit, a motor activating device activates the motor in cooperation with returning movement of the release button. The rotational movement of the motor causes the clutch member to return to the power transmitting position, and is transmitted to the film winding wheel through the coupling gear.
    • 膜卷绕单元可移除地附接到胶片单元,以便将联接齿轮与胶片卷绕轮接合。 联接齿轮通过离合器构件连接到齿轮系。 当胶片单元的胶片卷绕轮被解锁时,离合器部件被放置在动力传递位置,用于通过齿轮系将电动机的旋转运动传递到联接齿轮。 当胶片卷绕机构被锁定时,对离合器部件施加大的负载,使得离合器部件滑入断开位置以将电动机与联接齿轮断开。 与离合器部件移动到断开位置一起,马达停用装置使马达无效。 在按下薄膜卷绕单元的释放按钮以按压胶片单元的快门按钮之后,马达启动装置与释放按钮的返回移动一起启动马达。 电机的旋转运动使离合器构件返回到动力传递位置,并通过联接齿轮传递到胶片卷绕轮。