ELECTROMAGNETIC IMPACT-ACTION MACHINE Russian patent published in 1999 - IPC

FIELD: hand-operated electric tools. SUBSTANCE: impact-action machine includes stator shaped as coil with magnetic core positioned on guide bushing with striker. Tool and striker stroke limiting assembly are mounted on ends of bushing for axial displacement relative to each other. Striker return device is installed there too. Striker return device may be manufactured as flexible member with its rigidly adjustment mechanism in the form of auxiliary electromagnetic coil with current regulator. EFFECT: enlarged range of impact characteristics. 3 cl, 2 dwg