PLATTENVIBRATOR.

摘要

The invention relates to a hand-operated forward-reverse vibrating plate compactor, the vibrating element of which consists of two contra-rotating eccentrics. The vibrational force generated by the eccentrics is directional, forward and reverse motion of the vibrating plate compactor being achieved by changing the phase position of the eccentrics relative to each other. According to the invention, this is accomplished steplessly by means of a hydraulic servo control system through which continuously variable adjustment of the speed and action-in-depth of the vibrating plate compactor can be achieved.