Patent ID: 7034240
Filing Date: 2006-04-25
Classification: H01H

Abstract:
1. A controlling apparatus for an electric tool, the electric tool comprising a power supply and a two-way motor, the motor comprising a first lead and a second lead, the controlling apparatus comprising: a first conductive element connected with the anode of the power supply, the first conductive element comprising a first end for contacting the leads of the motor and a second end for contacting the leads of the motor; a second conductive element connected with the cathode of the power supply, the second conductive element comprising a first end for contacting the leads of the motor and a second end for contacting the leads of the motor; and a switching device comprising a carrier for carrying and switching the conductive elements between a neutral position, a first operative position and a second operative position; wherein the conductive elements do not contact the leads of the motor in the neutral position; wherein the first end of the first conductive element contacts the first lead of the motor and the second end of the second conductive element contacts the second lead of the motor in the first operative position; wherein the second end of the first conductive element contacts the second lead of the motor and the first end of the second conductive element contacts the first lead of the motor in the second operative position; wherein the carrier comprises four slots for receiving the ends of the conductive elements.