Patent ID: 6520266
Filing Date: 2003-02-18
Classification: B25D

Abstract:
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 (&ohgr;) of the drive shaft (1) into a reciprocating movement (&ugr;) of the percussion means (2), the planetary gear unit (5) including a sun gear (6) changing of a setting (&agr;) of which provides for adjusting of an impact amplitude of the reciprocating movement (&ugr;) 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).