Hand-held tool with electromagnetic hammer mechanism
AssigneeHilti Aktiengesellschaft
InventorsHarald Geiger, Hubert Daxenberger, Ronald Vuillemin, Marcel Jufer, Udo Schochtert
Life of this patent
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Abstract
A hand-held tool including an electromagnetic hammer mechanism (1) for applying a percussion movement to a working tool (3) and including at least one stator, at least one coil (4a), a striking piston formed as a yoke (10) supported in a magnetic flux for a limited displacement along the oscillation axis (A) and having at least one magnetomotive region (11) formed of a soft magnetic ferroelectric material, and at least one magnet (5a) associated with the stator, magnetizable along the oscillation axis (A), and arranged along and adjacent to at least one segment of the coil (4a) located at an end of the stator.
Claims12
A hand-held tool, comprising a working tool (3);
- and an electromagnetic hammer mechanism (1) for applying a percussion movement to the working tool (3) along an oscillation axis (A), the electromagnetic hammer mechanism (1) including at least one stator, at least one coil (4a) having an axis (B) extending transverse to the oscillation axis (A), a striking piston formed as a yoke (10), supported in a magnetic flux for a limited displacement along the working tool oscillation axis (A), and having at least one magnetomotive region (11) formed of a soft magnetic ferroelectric material, and at least one magnet (5a) associated with the stator, magnetizable along the oscillation axis (A) and arranged along and adjacent to at least one segment of the coil (4a) located at an end of the stator.
Dependencies are inferred from the claim text.