Electrical, rotary-percussion hand-held tool
AssigneeHilti Aktiengesellschaft
InventorsMartin Mayr, Wolfgang Zwerenz, Walter Wissmach, Christoph Kink
Life of this patent
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Abstract
An electrical, rotary-percussion hand-held including a spindle (4), an electric motor for driving the spindle between alternatingly switchable mode, a percussion mechanism and a gear mechanism arranged between the electric motor (1) and the spindle (4) for transmitting a drive torque from the electric motor (1) to the spindle (4), and a rotation shifting device (7) operatively connected with signal elements (6, 6′) and electrically connected with the electric motor (1) for actively shifting rotation of the spindle (4).
Claims6
An electrical, rotary-percussion hand-held tool comprising a spindle (4) having a chuck (5) for receiving a working tool, an electric motor (1) for driving the spindle (4) between alternatingly switchable modes, a percussion mechanism (2) and a gear mechanism (3) arranged between the electric motor (1) and the spindle (4) for transmitting a drive torque from the electric motor (1) to the spindle (4);
- and rotation shifting means (7) operatively connected with signal means (6, 6′) and electrically connected with the electric motor (1) for actively shifting rotation of the spindle (4).
Dependencies are inferred from the claim text.