US 5,494,151 A · Vibratory parts-feeder apparatus

Abstract

A vibratory parts-feeder apparatus includes a vibratory parts-feeder, a surrounding device for surrounding the vibratory parts-feeder, a sound-wave generator arranged below the vibratory parts-feeder, a noise detector arranged near the vibratory parts-feeder or attached thereto for detecting noise generating from the vibratory parts-feeder, a noise-cancelling signal generator, receiving the detecting output of the noise detector and driving the sound-wave generator; whereby sound-waves generating from the sound-wave generator are transmitted outwards from an annular gap at the upper end of the surrounding device, the surrounding device consists of a first cylindrical body with a bottom, surrounding the vibratory parts-feeder and a second cylindrical body, with a bottom, surrounding the first cylindrical body, the sound-wave generator is arranged at an opening made in the bottom of the second cylindrical body, and sound-waves generating from said sound-wave generator are transmitted outwards from an annular gap between the upper ends of the first and second cylindrical bodies.

Claims26

Dependent claims

A vibratory parts-feeder apparatus comprising:

(A) a vibratory parts-feeder;
(B) surrounding means surrounding said vibratory parts-feeder with an annular gap provided at an upper end of said surrounding means;
(C) sound-wave generating means arranged below said vibratory parts-feeder:
(D) noise detecting means arranged near said vibratory parts-feeder or attached thereto for detecting noise generating from said vibratory parts-feeder;
(E) a noise-cancelling signal generator, receiving noise detection output from said noise detecting means and thereby driving said sound-wave generating means, whereby sound-waves generating from said sound-wave generating means are transmitted outward from said annular gap at the upper end of said surrounding means.

2 more elements

A vibratory parts-feeder apparatus comprising;

(A) a vibratory parts-feeder comprising:
p2 (a) a bowl in which a spiral track is formed;
(b) a base block which is arranged under said bowl;
(c) an electro-magnet with a wound coil and fixed to said base block;
and
(d) spring means combining said bowl and said base block;
(B) sound-wave generating means arranged at a first opening made in a center of said base block;
(C) a sound duct fixed at a margin of the first opening of said base block and extending upwards and facing at its upper end to a second opening made in a center of the bottom of said bowl;
(D) noise detecting means arranged near said vibratory parts-feeder or attached thereto for detecting noise generating from said vibratory parts-feeder, and
(E) a noise-cancelling signal generator, receiving the detecting output of said noise detecting means and driving said sound-wave generating means whereby sound-waves generating from said sound-wave generating means are transmitted outward through said sound duct.

7 more elements

Dependencies are inferred from the claim text.

Vibratory parts-feeder apparatus

Life of this patent

Vibratory parts-feeder apparatus

Life of this patent

Abstract

Claims26