Michael Best & Friedrich LLP
Automatic transmission for a power tool
A transmission assembly is powered by an electric motor and includes a transmission having an outer ring gear, a connector moveable relative to the outer ring gear between a first position, in which the connector is rotatable with the transmission in response to torque received from the motor, and a second position, in which the connector and the outer ring gear are non-rotatable, and a control mechanism operable to detect the operating current of the motor and compare the operating current to a threshold current. The control mechanism is operable to move the connector from the first position to the second position in response to the motor operating current exceeding the threshold current.
Techtronic Power Tools Technology Limited
B B B F B
B25F B23B B25B F16H B23B
inventional additional inventional inventional inventional
Ka Ki Wing Fung Chi Hong
Chan Yip Ho