Hand-held electric impact wrench

Abstract

The application concerns a handheld electric impact wrench, particularly useful in mining. The handheld impact wrench (1) has an explosion-proof housing (2) with a power supply connection socket (4), a replaceable tool attachment (5), and a handle (6) with an on / off button (7). Behind the handle (6), there is a separate chamber (8) with an electric switch (9) equipped with a horizontal pin (10) expanded by a structural spring. The pin (10) is mounted in the rear socket (11) of a flanged connector (12) mounted in a slidable and explosion-proof manner in the front through-hole (13) of the separate chamber (8). The front end of the flanged connector (12) is provided with a stop element (14, 14') adjacent to the front surface (15) of the pusher (16) connected to the switching button (7).The resistance element (14, 14') is preferably a screw (14) with a head (14') of a diameter (d) greater than the diameter (d1) of the front through hole (13) of the separated chamber (8).