Patent ID: 6733169
Filing Date: 2004-05-11
Classification: B06B,E04G

Abstract:
A poker vibrator for compacting concrete, comprising:a vibrator housing receiving an oscillation-producing unit and an electric motor that drives the oscillation-producing unit; a protective and operating tube that is fastened to the vibrator housing at one end of the tube; a coupling piece is fastened to the protective and operating tube at the other end of the tube; an electric cable that connects the coupling piece to a plug housing bearing a power plug and belonging to an electric feed to the electric motor; a switch arranged in the electric feed from the power plug to the electric motor; and a frequency transformer, that feeds the electric motor, that can be electrically coupled to the power plug, that is arranged in the coupling piece, and that comprises one or more components, for generating an electrical frequency that deviates from a power-line frequency, wherein the switch is arranged separately from the coupling piece and not on the electric cable.