FIELD: process control.
SUBSTANCE: fast closing device for a portable processing machine has at least one rotating output shaft, in particular an angle grinder, containing at least one clamping unit, which, for toolless fixation of the working tool on the output shaft, contains at least one movable clamping element for applying a clamping force to the working tool in the closing position of the clamping element and at least one control unit (24f) for moving the clamping element to its closing position and/or to its opening position, in which it is possible to remove the working tool from the clamping unit (16f). The fast closing device contains at least one disconnecting unit (26a), provided for disconnecting the control unit (24a) from the clamping unit (16a), depending on the speed of rotation of the output shaft.
EFFECT: high level of operator safety is achieved.
14 cl, 17 dwg
