An adjustable output gear assembly for battery operated hand tools has three or four different functions by sliding an outer planet gear between two plant gears

摘要

The planet gear assembly has two different planet gears (a,b) separated by a spacer (c) and an axially sliding internal toothed outer gear (d) which engages either for different ratios and the motor driven sun gear (e) drives both. An output outer gear (g) slides to provide two different output speeds.