Patent ID: 8251158

Claim:
A power tool comprising: a housing defining a handle and a body; a motor received in the body; a trigger mounted to the handle and coupled to the motor, the trigger being adapted to control operation of the motor in response to an input provided by an operator of the power tool by coupling the motor to a source of power; an output member; a multi-speed transmission coupling the motor and the output member, the multi-speed transmission comprising a first transmission stage and a second transmission stage; and a speed selector comprising an actuator, a rail, a switch, a first biasing spring, and a second biasing spring, the actuator being movable along a longitudinal axis of the multi-speed transmission between a plurality of positions, the actuator being non-rotatably engaged to one or more members of the multi-speed transmission at each of the plurality of actuator positions such that the multi-speed transmission operates in a corresponding one of a plurality of different overall speed reduction ratios and there is no relative rotation between the actuator and the one or more members of the multispeed transmission at each of the plurality of actuator positions, the actuator being non-rotatably but axially slidably engaged to the housing, the rail being fixedly coupled to the actuator, the rail being received through the switch such that the switch is mounted on the rail for sliding movement thereon, the first biasing spring being disposed between the actuator and the switch and biasing the switch away from the actuator, the second biasing spring being disposed between the switch and an end of the rail opposite the actuator, the second biasing spring biasing the switch away from the end of the rail.