ANGLE GRINDER Russian patent published in 2015 - IPC B24B23/02 B24B45/00 B25F5/02 

FIELD: technological processes.

SUBSTANCE: invention relates to machine building and may be used in hand electric tools, in particular, angle grinders. The machine comprises a motor, an angle reducer, a working shaft with a nut of abrasive wheel fixation and two handles. Various versions are provided for fixation of abrasive wheel on the working shaft and mutual location of transverse and longitudinal handles of the machine. The working shaft and the specified nut are made with at least double thread or cottered, or between the wheel and the nut there is an anti-friction fluoroplast orifice. The longitudinal handle lies in the plane of wheel rotation or goes out of this plane. The straight line stretching via centres of two handles, passes via the centre of gravity of the machine or above it in case of vertical position of the wheel plane. The transverse handle is fixed with the possibility of sliding in longitudinal guides. Or the front longitudinal handle is fixed in the same manner.

EFFECT: invention provides for safe operation of an angle grinder without breaks of an abrasive wheel.

11 cl, 4 dwg