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    • 3. 发明授权
    • Motor drive device for camera
    • 相机电机驱动装置
    • US4190341A
    • 1980-02-26
    • US851745
    • 1977-11-15
    • Shiro Sugimori
    • Shiro Sugimori
    • G03B17/00G03B17/42G03B1/18
    • G03B17/425
    • A motor drive device for a camera comprises a film advance shaft for advancing film with the aid of the drive from a motor. A rotary shaft has a connecting portion and is effective to transmit the rotation to the film advance shaft, and a drive plate is rotatably mounted on the rotary shaft and is rotatable by the drive motor. A movable plate is rotatably mounted on the rotary shaft, a bias member biases both the movable plate and the drive plate so as to rotate them together and a coupling member formed with a coupling portion is capable of being coupled to the connecting portion, the coupling member being pivotally mounted on the movable plate for displacement between a coupled position and a non-coupled position. Change-over means are arranged for changing over the coupling member from the non-coupled position to the coupled position when the change-over means lies in the orbit of the coupling member, and a release is provided on the drive plate so as to pivotally move the coupling member to the non-coupled position against the bias of the bias member when the coupling member is in the coupled position by the displacement of the relative position between the drive plate and the movable plate which results from an increased film advance load after completion of film advance.
    • 用于照相机的电动机驱动装置包括用于借助于来自电动机的驱动来使膜前进的膜前进轴。 旋转轴具有连接部分,并且有效地将旋转传递到胶片提前轴,并且驱动板可旋转地安装在旋转轴上并且可由驱动电机旋转。 可动板可旋转地安装在旋转轴上,偏置构件偏压可动板和驱动板,以便将它们一起旋转,并且形成有联接部分的联接构件能够联接到连接部分,联接器 构件可枢转地安装在可移动板上,用于在联接位置和非联接位置之间移位。 转换装置被布置成当转换装置位于联接构件的轨道中时,将联接构件从非联接位置转换到联接位置,并且在驱动板上设置释放以便枢转 当耦合构件处于耦合位置时,通过位移驱动板和可移动板之间的相对位置的移动,抵抗偏压构件的偏压将联接构件移动到非联接位置,这是由于增加的膜前进负载导致的, 完成电影推进。