Dust cover for a cutting grinder
AssigneeHilti Aktiengesellschaft
InventorKevin Kuhlmann
Life of this patent
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Abstract
A dust hood (100), including a flange (90) for fastening the dust hood (100) to a transmission extension housing (210) of an angle grinder (200), and including a hood body (10) for covering a circular cutting wheel (220) on both sides, at least in sections, and including a suction connecting piece (40) for connecting a suction hose (400), via which removed substrate material (UG) may be extracted from the hood body (10), the dust hood (100) including a sensor unit (20), with the aid of which it is possible to detect whether the suction hose (20) is connected to the suction connecting piece (40) and/or whether a flap (45) of the suction connecting piece (40) is open.
Claims6
A method for operating an angle grinder, the angle grinder including a cutting wheel and a dust hood equipped with a suction connecting piece, the method including the steps:
- detecting whether a suction hose is connected to the suction connecting piece or whether a flap of the suction connecting piece is open with the aid of a sensor unit encompassed by the dust hood;
- and
- controlling a rotational direction of the cutting wheel of the angle grinder as a function of the state detected by the sensor unit;
- wherein the sensor unit includes a flap contact to detect whether the flap is open or closed and a connecting piece contact to detect whether the suction hose is connected to the suction connecting piece;
- wherein the rotational direction includes a contra-rotating rotational direction corresponding to a dry cutting with dust extraction and a co-rotating direction corresponding to a dry cutting operation without dust extraction.
A method for operating an angle grinder, the angle grinder including a cutting wheel and a dust hood equipped with a suction connecting piece, the method including the steps:
- detecting whether a suction hose is connected to the suction connecting piece or whether a flap of the suction connecting piece is open with the aid of a sensor unit encompassed by the dust hood;
- and
- controlling a rotational direction of the cutting wheel of the angle grinder as a function of the state detected by the sensor unit;
- wherein the sensor unit includes a flap contact to detect whether the flap is open or closed;
- wherein the rotational direction includes a contra-rotating rotational direction corresponding to a dry cutting with dust extraction and a co-rotating direction corresponding to a dry cutting operation without dust extraction.
Dependencies are inferred from the claim text.