Mobile machine tool for machining a surface

A mobile machine tool for processing a surface of a workpiece or a room, wherein the machine tool comprises a working device with a plate tool for processing the surface and a drive motor for driving the plate tool, which has a processing surface assigned to processing a workpiece and a machine side opposite to the processing surface, wherein intake air inflow openings are arranged on the processing surface for suctioning the processing surface onto the surface to be processed, which openings are flow-connected to at least one intake air outflow opening arranged on the plate tool away from the processing surface, wherein the plate tool comprises at least one additional air inflow opening for the inflow of additional air, which is flow-connected to at least one additional air outflow opening arranged away from the processing surface, and wherein the machine tool comprises an intake device for generating an intake air flow from the at least one intake air outflow opening and an additional intake air flow from the at least one additional air outflow opening, and wherein the intake device comprises a suction controller for controlling the additional intake air flow from the at least one additional air outflow opening, and

• wherein the intake device comprises an intake air inlet associated with the at least one intake air outflow opening and an additional air inlet associated with the at least one additional air outflow opening, and
• wherein the intake air inlet and the additional air inlet are flow-separated from one another by at least one seal running in a ring around an axis of rotation or a central axis of the plate tool, and
• wherein the at least one seal comprises, relative to an axis of rotation or central axis of the plate tool, a radially outer annular seal and a radially inner annular seal, the radially outer annular seal and the radially inner annular seal comprising a rubber or other elastic material to sealingly seat on the machine side of the plate tool, the radially outer annular seal and the radially inner annular seal defining an annular chamber running about the axis of rotation or central axis of the plate tool and a central chamber enclosed by the annular chamber and fluidically separated from the annular chamber by the radially inner annular seal, wherein the annular chamber forms the additional air inlet and the central chamber forms the intake air inlet or the annular chamber forms the intake air inlet and the central chamber forms the additional air inlet, or said chambers are associated with the respective inlet, and
• wherein the mobile machine tool further comprises a rod-shaped handle for gripping by an operator, the rod-shaped handle being pivotably mounted to the working device about at least two pivot axes which are at an angle to one another.