Tool receptacle for a grinding tool
AssigneeHilti Aktiengesellschaft
InventorsHans Rupprecht, Manfred Jakob, Georg Holzmeier
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Abstract
A grinding tool, in particular a concrete grinding tool, comprising a drive spindle (1) driven by a motor in the working rotational direction (A) having a tool receptacle (7) at its free end. The tool receptacle (7) is provided with a flange (2) non-rotationally disposed on the drive spindle (1) and a nut (3) that can be threaded onto the free end (6) for clamping the tool (5) against the flange (2). The tool receptacle (7) further comprises an anti-rotation device (4) that prevents a rotation of the tool (5) relative to the drive spindle (1) in the working direction of rotation (A) of the drive spindle (1).
Claims9
A grinding tool comprising a drive spindle (1) driven by a motor, in a working rotational direction (A), a tool receptacle (7) at a free end, a flange (2) non-rotationally disposed on the drive spindle (1) and a nut (3) threadable onto the free end (6) for clamping the tool (5) against the flange (2), wherein the tool (5) comprises a plurality of abrasive members 17 and wherein the tool receptacle (7) comprises an anti-rotation device that prevents a rotation of the tool (5) relative to the drive spindle (1) in the working rotational direction (A) of the drive spindle (1), wherein the anti-rotation device (4) is a spring element that pre-stresses the tool (5) towards the free end (6) of the drive spindle (1).
Dependencies are inferred from the claim text.