Patent attributes
A hand held power tool, for delivering a torque to a joint, includes a housing that houses a motor arranged to drive an input shaft; an output shaft arranged to provide a torque to the joint; and a planetary gear connecting the input shaft to the output shaft. A flywheel is arranged to rotate freely with respect to the housing. A cam block, loosely fitted inside the housing, is rotatively connected to a part of the planetary gear and connected to the housing via a cam profile, wherein an interaction between the cam block and the cam profile will force the cam block into contact with the flywheel when the cam block is rotated. Thus, any counterforces acting on the output shaft will be provided to the flywheel via the planetary gear, such that the operator will not need to provide any counterforces.
