Patent ID: 8011442
Filing Date: 2011-09-06
Classification: B25D,B25F

Abstract:
1. A handheld power tool, comprising; a housing; a tool receptacle; a motor having a motor shaft; an intermediate shaft; means for transmitting a rotation of said motor shaft to a rotary motion of said intermediate shaft; a drive mechanism for a tool insertable into said tool receptacle, said drive mechanism being provided with means for converting the rotary motion of said intermediate shaft into a rotary motion of said tool receptacle and means for converting the rotary motion of said intermediate shaft into a hammering motion in a hammer mechanism coupled to said tool receptacle, wherein said motor shaft is coaxial with said intermediate shaft to form a coaxial structure; means for coupling said motor shaft to said intermediate shaft, wherein said means for coupling said motor shaft to said intermediate shaft, said means for converting the rotary motion of said intermediate shaft into a rotary motion of said tool receptacle and said means for converting the rotary motion of said intermediate shaft into a hammering motion are arranged on said coaxial structure, and wherein said motor is an electronically commutated DC motor.