Abstract: An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor disposed in the coil frame to be rotatable through a rotational shaft, a transmission arm attached to the rotational shaft for outputting a rotation of the magnet rotor to an outside, and a coil wound around an outer periphery of the coil frame. The tubular coil frame is divided laterally in a direction perpendicular to the rotational shaft, and is formed of two bobbin members. The transmission arm is attached to the rotational shaft in a state approximately perpendicular to the rotational shaft. An opening is provided in one of the bobbin members in a peripheral side surface at a location different from a connection surface contacting the other of the bobbin members, so that the transmission arm protrudes to an outside of the coil frame through the opening.

Abstract: An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor rotatably disposed in the coil frame through a rotational shaft, a transmission member for transmitting a rotation of the magnet rotor, and a coil wound around an outer periphery of the coil frame. The coil frame is formed of two coil frame halves divided vertically along the rotational shaft of the rotor, and the coil is wound in a direction crossing connection faces (joint faces) of the two coil frame halves on upper and lower end surfaces thereof.

Abstract: An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor disposed in the coil frame to be rotatable through a rotational shaft, a transmission arm attached to the rotational shaft for outputting a rotation of the magnet rotor to an outside, and a coil wound around an outer periphery of the coil frame. The tubular coil frame is divided laterally in a direction perpendicular to the rotational shaft, and is formed of two bobbin members. The transmission arm is attached to the rotational shaft in a state approximately perpendicular to the rotational shaft. An opening is provided in one of the bobbin members in a peripheral side surface at a location different from a connection surface contacting the other of the bobbin members, so that the transmission arm protrudes to an outside of the coil frame through the opening.

Abstract: An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor rotatably disposed in the coil frame through a rotational shaft, a transmission member for transmitting a rotation of the magnet rotor, and a coil wound around an outer periphery of the coil frame. The coil frame is formed of two coil frame halves divided vertically along the rotational shaft of the rotor, and the coil is wound in a direction crossing connection faces (joint faces) of the two coil frame halves on upper and lower end surfaces thereof.

Abstract: An automatic document feeder is formed of a transfer device having a transfer belt situated above a platen to transfer a sheet on the platen, and a belt motor for actuating the transfer belt, a sheet detecting device situated near the transfer belt for detecting the sheet, and a feeding device located near the transfer belt at a side of the sheet detecting device. The feeding device feeds the sheet between the transfer belt and the platen. A controlling device is electrically connected to the sheet detecting device and the belt motor. The controlling device, while the belt motor for transferring the sheet on the platen is actuating, outputs a stop signal to stop the belt motor when a predetermined time has passed after the sheet detecting device detects the sheet so that the sheet is placed on a predetermined position on the platen. The feeder further includes a compensating device connected to the controlling device.