IMPACT-ACTION TOOL Russian patent published in 1997 - IPC

FIELD: tools; mechanical engineering; building. SUBSTANCE: impact-action tool has housing made up of two screwed-together parts. The housing accommodates a rod with tapered working surface, a booster made in the form of washer with inclined inner surface and balls, and a bar. One end of the bar has inclined surface facing the inclined surface of the washer and the second end is provided with helical master grooves. The balls are placed to radially slide over the inclined surfaces of the washer and bar and tapered part of the rod. The bar is engaged with the second part of the housing by means of master pins introduced into the helical grooves. EFFECT: high effectiveness of the tool operation. 2 dwg