Piezoelectric vibration generator and vibratory parts feeder incorporating the same

摘要

A piezoelectric vibration generator (3) interconnecing a base (1) and a vibratory conveyor table (2) of a piezoelectrically driven vibratory parts feeder includes a pair of resilient plate members (5, 10) joined together at their lower ends and disposed in a configuration substantially folded about the joint therebetween. The vibration generator of the folded configuration has a relatively small length and hence is capable of reducing the overall height of the vibratory parts feeder. A further advantage attained by the folded vibration generator (3) is that the amplitude of vibrations is not limited depending upon the distance between the base (1) and the vibratory conveyor table (2).