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    • 5. 发明授权
    • Camera including an improved drive mechanism
    • 相机包括改进的驱动机制
    • US06210048B1
    • 2001-04-03
    • US09164575
    • 1998-10-01
    • Yoshiharu TanakaJunichi TaniiIkushi Nakamura
    • Yoshiharu TanakaJunichi TaniiIkushi Nakamura
    • G03B100
    • G03B17/425
    • A camera has at least one motor, a spindle gear (i.e. a gear having a spindle) for rewinding and thrusting a film, a cam that rotates together with the spindle gear when the spindle gear is rotated in a film-rewinding direction and that remains at rest when the spindle gear is rotated in a film-thrusting direction, a direction-limiting mechanism for permitting the spindle gear to rotate in the film-rewinding direction only when the motor is rotating in a forward direction, and a transmission mechanism that comes into contact with the cam when the motor is rotating in a reverse direction and that, when the cam is in one of predetermined rotation positions, engages with and thereby transmits a driving force of the motor to a corresponding one of driven members provided one for each of the predetermined rotation positions. In this camera, paths for transmitting the driving force of the motor are switched by first rotating the spindle gear in the film-rewinding direction to bring the cam into one of the predetermined rotation positions and then reversing a rotation direction of the motor.
    • 照相机具有至少一个电动机,主轴齿轮(即,具有主轴的齿轮),用于重绕和推动胶片;当主轴齿轮沿着胶片倒带方向旋转并且保持时,凸轮与主轴齿轮一起旋转的凸轮 当主轴齿轮沿胶片推动方向旋转时,静止时,只有当电机正向旋转时才允许主轴齿轮沿胶片卷绕方向旋转的方向限制机构和传递机构 当电动机沿相反方向旋转时,与凸轮接触,并且当凸轮处于预定旋转位置之一时,与凸轮接合并由此将电动机的驱动力传递到相应的驱动构件 的预定旋转位置。 在该照相机中,通过首先使胶片重放方向上的主轴齿轮旋转来切换用于传递电动机的驱动力的路径,以使凸轮进入预定旋转位置之一,然后反转电动机的旋转方向。
    • 9. 发明授权
    • Moving driving device of camera
    • 移动相机的驱动装置
    • US4849779A
    • 1989-07-18
    • US169449
    • 1988-03-17
    • Kouji YamamotoShinji TominagaAkira YamanakaHiroshi UedaNobuyuki TaniguchiIkushi NakamuraMichihiro Iwata
    • Kouji YamamotoShinji TominagaAkira YamanakaHiroshi UedaNobuyuki TaniguchiIkushi NakamuraMichihiro Iwata
    • G03B7/091G03B7/16G03B15/05G03B17/42G03B1/00
    • G03B17/425G03B15/05G03B7/091G03B7/16G03B2215/0503
    • The motor drive device according to the present invention drives a motor until a hold signal disappears and the motor is braked when the holding signal disappears. After a predetermined period from the time when the holding signal disappears, it is detected whether or not a completion position signal representing that the load has reached the normal complete position is output. If the completion position signal is not output, the motor is started again. The load is driven until the load reaches the position where the completion position signal is output, and then the motor is braked. Thus the load can be stopped at the correct position. Also, with the motor drive device according to the present invention, the motor may be braked after the load is driven by a predetermined amount. After a predetermined period has passed therefrom, it is detected whether or not a signal representing that the load is normally driven is output, and if the signal is not ouput, the motor is started again. The load is driven until the signal is output and then the motor is braked. Thus, the load can be correctly driven.
    • 根据本发明的电机驱动装置驱动马达直到保持信号消失,并且当保持信号消失时马达被制动。 在保持信号消失之后的预定时间段之后,检测出表示负载已达到正常完成位置的完成位置信号是否被输出。 如果未输出完成位置信号,则电机再次启动。 负载被驱动直到负载到达完成位置信号输出的位置,然后电动机被制动。 因此,负载可以停在正确的位置。 此外,根据本发明的电动机驱动装置,在负载被驱动预定量之后,电动机可以被制动。 在经过预定时间之后,检测是否输出表示负载正常驱动的信号,如果信号不输出,则电动机再起动。 负载被驱动直到信号输出,然后马达被制动。 因此,可以正确地驱动负载。