Screwdriver

摘要

The screwdriver has a shaft for coupling with the screws. On this shaft is a pivoted body (1). This has pivoted masses (weights 5,6) on two opposite sides of a hub (2). The hub has two radial diametrically opposite, inward facing projections (8,9). The projections act with two opposite projections (13,14) on the shaft which project outwards into the zone of the hub projections. The shaft may be fixed to a washer with two diametrically opposite projections which the turning body contacts via two side discs, which may be attached by rods to the weights.