Percussion electrical hand-held tool
AssigneeHilti Aktiengesellschaft
InventorsHans-Werner Bongers-Ambrosius, Martin Richter, Konrad Artmann
Life of this patent
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Abstract
A percussion electrical hand-held tool including a housing (10), a percussion element (2) located in the housing, and a planetary gear unit (5) located in the housing (10) for converting a rotational movement (107) of the drive shaft (ω) of the hand-held tool (8) into a reciprocating movement (υ) of the percussion element (2), with the planetary gear unit (5) including a sun gear (6) changing of a setting (α) of which provides for adjusting of an impact amplitude of the reciprocating movement (α) of the percussion element (2), and control unit located in the housing (10) for adjusting the impact amplitude in accordance with a manual axial force applied to the handle of the hand-held tool (8).
Claims8
A percussion electrical hand-held tool, comprising a housing (10);
- a handle (11) secured to the housing (10);
- percussion means (2) for applying impacts to a working tool and located in the housing (10);
- a drive shaft (1) for driving the percussion means (2);
- a planetary gear unit (5) located in the housing (10) and operatively connected with the drive shaft (1) and the percussion means (2) for converting a rotational movement (ω) of the drive shaft (1) into a reciprocating movement (υ) of the percussion means (2), the planetary gear unit (5) including a sun gear (6) changing of a setting (α) of which provides for adjusting of an impact amplitude of the reciprocating movement (υ) of the percussion means (2);
- and means located in the housing (10) for adjusting the impact amplitude in accordance with a manual axial force (F) applied to the handle (11).
Dependencies are inferred from the claim text.