Patent ID: 9481080
Filing Date: 2016-11-01
CPC Classification: B23B,B25F

Claim Text:
1. A tool comprising: a housing assembly defining a handle; and a transmission assembly received in the housing assembly, the transmission assembly comprising a reduction gearset and a speed selector mechanism, the reduction gearset comprising a plurality of planetary stages, the speed selector mechanism having a movable member, an actuator and a shifter assembly, the movable member being movable parallel to a longitudinal axis of the transmission assembly between a first position, in which the movable member is non-rotatably coupled to the housing assembly, and a second position in which the movable member is coupled to a planet carrier of the reduction gearset for common rotation, the actuator comprising a yoke, which is pivotally coupled to the housing assembly, and a follower that is coupled to the yoke, the follower engaging the movable member so as to be axially movable with the follower, the shifter assembly having a selector switch, a switch fork, and a pair of biasing springs, the selector switch being slidably mounted to the housing assembly and movable between a first switch position and a second switch position, the shift fork being slidably coupled to the selector switch and receiving the yoke, the biasing springs cooperating to bias the shift fork relative to the selector switch into a neutral position.