Abstract: Disclosed herein is a pusher device for a plastic optical fiber comprising a pair of pusher members for holding and fixing end portions of plural plastic optical fibers covered with sheaths, and a plurality of channel-like pushing portions provided on at least one of said pair of pusher members in such a manner as to correspond to said plural plastic optical fibers, said channel-like pushing portions having inner wall surfaces to be in press-contact with said sheaths. With this arrangement a contact area between the pusher members and the sheaths is increased to prevent slip of the optical fibers relative to the sheaths and maintain good light transmittance.

Abstract: Herein disclosed is a hopper structure which is in a hopper structure for separating chip parts, a swing roll is hopper body which has its lower spout merging into a lining-up cylindrical hole formed in a lining-up block. The swing roll is formed at its outer periphery with an arcuate mixing projection which has its upper end face positioned in the upper mouth of the lining-up cylindrical hole. There is provided a drive mechanism for bringing the swing roll into swinging motions of an angle smaller than the arcuate angle of the mixing projection.

Abstract: A remote control device comprises a control input unit, a transmission unit, a receiving unit, a reply unit and a command control circuit. The control input unit outputs a control signal. The transmission unit stores the control signal in a first memory circuit and transmits a light signal based on the control signal. A main device controlled by the remote control unit receives in a first receiver circuit and stores in a second memory circuit the signal from the transmission unit. The main device has a reply signal unit for transmitting a return signal based on the signal from the receiving unit to a second receiver circuit of the remote control device. The command control circuit compares the signal received by the second receiver circuit and the signal stored in the first memory circuit. When these compared signals are in agreement, the command control circuit outputs to the transmission unit a signal based on the signal stored in the second memory circuit thereby to cause the operating device to operate.

Abstract: A coordinate detecting method, adapted to a coordinate input device comprising an input plane having a plurality of parallel embedded loops, establishes a plurality of coarse regions while taking as a reference the polarity reversing positions of a magnetic field detected when these loops are scanned in sequence. The method comprises the steps of specifying one coarse region to be interpolated, interpolating the designation position of a coordinate designating member within the specified coarse region, and calculating the coordinate of the designation position on the basis of the coordinate position of the specified coarse region and an interpolation value obtained in the interpolating step.