US 12,240,094 B2
Multi-function handheld electric tool
Guo Hui Xiong, Dongguan (CN); and Wei Bing Wang, Dongguan (CN)
Assigned to Techtronic Cordless GP, Anderson, SC (US)
Filed by TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed on Mar. 15, 2024, as Appl. No. 18/606,553.
Application 18/606,553 is a continuation of application No. 17/620,399, granted, now 11,964,376, previously published as PCT/CN2020/117508, filed on Sep. 24, 2020.
Prior Publication US 2024/0217083 A1, Jul. 4, 2024
Int. Cl. B25F 5/00 (2006.01); B23B 45/02 (2006.01); B25B 23/147 (2006.01); B25D 16/00 (2006.01); B25F 3/00 (2006.01)
CPC B25F 5/001 (2013.01) [B23B 45/02 (2013.01); B25F 3/00 (2013.01); B25B 23/147 (2013.01); B25D 16/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power tool comprising:
a motor configured to provide a torque output;
a transmission configured to receive the torque output from the motor, the transmission including a ring gear including a face having a plurality of ramps extending a fixed axial distance from a linear portion of the face;
a spindle receiving a torque output from the transmission;
a setting collar rotatable between a plurality of predetermined angular positions that includes a first predetermined angular position corresponding to a non-torque-limited first operation mode of the power tool and a plurality of second predetermined angular positions corresponding to different torque output settings of a torque-limited second operation mode of the power tool; and
a clutch coupled to the transmission including
a clutch washer,
a follower positioned between the face and the clutch washer, and
a clutch sleeve coupled to the setting collar, the clutch sleeve movable a variable axial distance from the clutch washer dependent on a respective one of the plurality of predetermined angular positions of the setting collar,
wherein in the first predetermined angular position of the setting collar that corresponds to the non-torque-limited first operation mode of the power tool, the fixed axial distance is greater than the variable axial distance, and in the second predetermined angular positions of the setting collar the variable axial distance is greater than the fixed axial distance.