Patent ID: 8245791
Filing Date: 2012-08-21
Classification: B25D,B25F

Abstract:
1. A hand-held tool, comprising: a drive unit and a stroke-generating element, the drive unit being embodied to move the stroke-generating element in a reciprocating, periodic motion along a translation axis; and at least one counterweight operatively connected to the drive unit to at least partially compensate for forces at least indirectly caused by the reciprocating motion, the at least one counterweight being supported by a bushing to reciprocate coaxially or parallel to the translation axis, wherein the bushing is embodied as a hollow cylinder having a cylindrical wall and the at least one counterweight is at least partially accommodated within the hollow cylinder, wherein the cylindrical wall has an elongated opening extending along a length of the cylinder through which a wobble pin extends for engagement with the at least one counterweight, and wherein the at least one counterweight is attached to the wobble pin such that the wobble pin moves the at least one counterweight in a reciprocating fashion through the elongated opening in the cylindrical wall of the bushing.