公开(公告)号：US20240399550A1

公开(公告)日：2024-12-05

申请号：US18669728

申请日：2024-05-21

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Ian McConeghy ,  Bryan C. Kendall ,  Jesse Gibb ,  Jeffery D. Spraggon ,  Matt Lombardo ,  Hunter Wiehe ,  Spencer D. Stingl ,  Alan J. Rehfeldt

IPC: B25D16/00

Abstract: A rotary hammer includes a housing and a mode selection dial supported in the housing. The mode selection dial includes a cam. The housing supports a motor providing a rotational output. The housing supports a linkage moveable between a first position and a second position in response to engagement by the cam. A loss-of-control detection system measures acceleration of the housing and disables the motor upon the acceleration exceeding an acceleration threshold. The housing supports an operating mode detection system including a magnet and a Hall-effect sensor. The magnet is coupled to the linkage and moveable therewith between a third position corresponding to the first position of the linkage and a fourth position corresponding to the second position of the linkage. The Hall-effect sensor provides an output signal indictive of the position of the magnet. The loss-of-control detection system is selectively disabled based upon the output signal.