Shinko Electric Company, Ltd.

Eiji Ohki

Yasushi Muragishi

Kazumichi Kato

Tetsuyuki Kimura

Toshiro Sekine

Hirohiko Murata

Masanobu Tomita

In a vibratory parts-feeder including; a feeder bowl in which a spiral track is formed, a vertical exciter with first electro-magnetic coil for exciting the feeder bowl in the vertical direction, a horizontal exciter with second electro-magnetic coil for exciting the feeder bowl in the horizontal direction, horizontal leaf springs for supporting the feeder bowl so as to be vibratile in the vertical direction, and vertical leaf springs for supporting the feeder bowl so as to be vibratile in the horizontal direction, wherein there is a phase difference between the currents flowing through the first and second electro-magnetic coils and the feeder bowl is elliptically vibrated, the improvements in which a phase adjusting circuit is connected to the first or second electro-magnetic coil, voltage adjusting circuits are connected to the first and second electro-magnetic coils and the ratio of the longer axis to the shorter axis of the elliptical vibration and the inclination of the longer axis thereof are varied with the adjustment of the phase adjusting circuit and the voltage adjusting circuits.

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Toyohashi, Japan

Eiji Ohki