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    • 5. 发明授权
    • Electromagnetic actuator for cameras and the like
    • 照相机用电磁执行机构等
    • US5025239A
    • 1991-06-18
    • US330450
    • 1989-03-30
    • Nobuharu MurashimaHideo KajitaYasuo HawaiToshihiko IshimuraAkira OkunoJunichi TaniiReiji Seki
    • Nobuharu MurashimaHideo KajitaYasuo HawaiToshihiko IshimuraAkira OkunoJunichi TaniiReiji Seki
    • G03B17/38H01F7/08H01F7/123
    • H01F7/08G03B17/38H01F7/123
    • An electromagnetic actuator suitable for use in combination with the mechanisms of cameras and the like. The electromagnetic actuator has a single electromagnet, and first and second armatures disposed opposite to the opposite attracting surfaces of the electromagnet, respectively. The first armature actuates a first operating lever for operating the shutter release mechanism of a camera, and the second armature actuates a second operating lever for operating the diaphragm of the camera. The first armature is separated from the attracting surface and the second armature is in contact with the attracting surface while the electromagnet is not energized. When the electromagnet is energized, the first armature is attracted to the attracting surface to actuate the first operating lever for releasing the shutter. When the electromagnet is de-energized, the second armature is separated from the attracting surface to allow the second operating lever which has been detained by the second armature to be turned for controlling the diaphragm. A control circuit decreases the current energizing the electromagnet after the first and second armatures have been attracted to the corresponding attracting surfaces to save power.
    • 一种电磁致动器,适合与照相机等的组合结合使用。 电磁致动器具有单个电磁体,并且分别与电磁体的相对的吸引表面相对设置的第一和第二电枢。 第一电枢致动用于操作照相机的快门释放机构的第一操作杆,并且第二电枢致动用于操作照相机的光阑的第二操作杆。 第一电枢与吸引表面分离,并且第二电枢与吸引表面接触,而电磁体未通电。 当电磁体通电时,第一电枢被吸引到吸引表面,以驱动第一操作杆以释放快门。 当电磁铁断电时,第二电枢与吸引表面分离,以允许被第二电枢锁定的第二操作杆转动以控制隔膜。 在第一和第二电枢已经被吸引到相应的吸引表面之后,控制电路减小了对电磁体通电的电流,以节省功率。
    • 6. 发明授权
    • Film winding system of camera
    • 电影卷绕系统的相机
    • US4949109A
    • 1990-08-14
    • US333600
    • 1989-04-05
    • Takahisa ShimadaHideo KajitaSueyoshi OkumuraReiji SekiToshihiko IshimuraSinji Katayori
    • Takahisa ShimadaHideo KajitaSueyoshi OkumuraReiji SekiToshihiko IshimuraSinji Katayori
    • G03B17/42G03B1/12
    • G03B17/425
    • A film winding system of a camera, comprising: an electrical motor, a film winding device, a cocking device. Both devices are driven by the motor, for winding a film roll and for cocking a predetermined mechanism, through a differential gearing by which one of the devices is driven selectively. The system further comprises a counter for counting a frame of the film roll, a lock lever for locking the film winding device every time one frame of the film roll is wound up, a dis-lock device for releasing a locked state of the film winding device, an order generator for ordering initiation of initial loading, and a controller operating in such a way that the dis-lock device operates at completion of a cocking operation of the cocking device at a normal film winding operation, while the dis-lock device operates when the order generator operates, and an operation of the dis-lock device is terminated when the predetermined total number of the frames is counted by the counter, and the motor is continuously driven in operation of the dis-lock device.When the patrone is loaded at a film chamber, the dis-lock device operates and the locked state is released and the motor is driven. Then, the predetermined total number of the frames is wound without any interruption.
    • 一种照相机的胶片卷绕系统,包括:电动机,胶片卷绕装置,起翘装置。 两个装置由电动机驱动,用于卷绕胶片卷并通过用于选择性地驱动一个装置的差速齿轮来预定机构。 该系统还包括用于对胶卷的框架进行计数的计数器,每当胶片卷的一个框架被卷绕时用于锁定胶片卷绕装置的锁定杆,用于释放胶片卷绕的锁定状态的解锁装置 装置,用于订购启动初始装载的订单发生器,以及控制器,其操作方式是使得解锁装置在正常的膜卷绕操作时在起动装置的起动操作完成时操作,而解锁装置 当订单发生器工作时操作,并且当通过计数器对预定的总数进行计数时,解除锁定装置的操作终止,并且在解锁装置的操作中电机被连续驱动。 当胶片装载在胶片室时,解锁装置操作并且锁定状态被释放并且电动机被驱动。 然后,预定的帧数被卷绕而不会中断。
    • 7. 发明授权
    • Film rewinding system of camera
    • 相机胶卷倒带系统
    • US4945370A
    • 1990-07-31
    • US333700
    • 1989-04-05
    • Takahisa ShimadaHideo KajitaSueyoshi OkumuraReiji SekiToshihiko IshimuraSinji Katayori
    • Takahisa ShimadaHideo KajitaSueyoshi OkumuraReiji SekiToshihiko IshimuraSinji Katayori
    • G03B17/42G03B1/12
    • G03B17/425
    • A film rewinding system, of camera, capable of automatically rewinding a film roll which is wound by film winding apparatus comprising, an electrical motor, a film winding device driven by the motor, a lock mechanism associated with the film winding device, for locking the winding device every time feed of a frame of the film roll is completed, and a dis-lock mechanism having a dis-lock lever for releasing a locked state of the winding device for feeding the film roll, while the dis-lock lever is located at a neutral position during one-frame feeding and a magnet unit for holding the dis-lock lever at the neutral position, the system comprising: a film rewinding device driven by the motor; a switch operating on and off several times during the one-frame feeding, which is associated with the winding device and operates during film travelling; and a controller which controls the film rewinding device and the magnet unit with a predetermined routine.The system operates as follows. A locking operation of the lock mechanism to the film rewinding system does not operate, at least, during a period from initiation of an operation of film rewinding through completion of one-frame rewinding of the film roll, on the occasion of the film rewinding.
    • 一种相机的胶卷倒带系统,其能够自动重卷由卷绕装置卷绕的胶卷,包括电动马达,由马达驱动的胶片卷绕装置,与胶片卷绕装置相关联的锁定机构,用于锁定 卷绕装置,每当胶片卷的框架的进给完成时,以及具有用于释放用于馈送胶卷的卷绕装置的锁定状态的解锁杆的解锁机构,同时解锁杆位于 在一帧送入期间的中立位置,以及用于将所述解锁杆保持在中立位置的磁体单元,所述系统包括:由所述电动机驱动的胶卷重绕装置; 在单次送料期间,与卷绕装置相关联并在胶片行进期间操作的开关操作多次开关; 以及控制器,其以预定程序来控制胶卷重绕装置和磁体单元。 系统操作如下。 至少在胶片倒片的时候,通过完成胶片卷的一帧倒片,在胶片倒片操作开始的时间段内,锁定机构到胶片重绕系统的锁定操作不起作用。