Patent ID: 9415497
Filing Date: 2016-08-16
CPC Classification: B25D

Claim Text:
1. A hand-held power tool, comprising: a planetary gearbox assemblage; a hammer impact mechanism including a drive rotation element; and a tool spindle; wherein the planetary gearbox assemblage includes at least one planetary gear stage element adapted to split a power flow so as to make available different rotation speeds for an impact mode and a rotation mode, wherein the at least one planetary gear stage element is an element of at least one gear stage of the planetary gearbox assemblage adapted to increase a rotation speed for an impact drive in which a rotation speed of the drive rotation element is higher than a rotation speed of the tool spindle, wherein the planetary gearbox assemblage includes four gear stages, wherein the first, the second and the third gear stages are adapted to reduce rotation speed of the spindle, and the fourth gear stage is the gear stage adapted to increase the rotation speed for the impact drive, wherein the fourth gear stage includes at least one sun gear that, in at least one operating state, is connectable nonrotatably to the drive rotation element of the hammer impact mechanism, wherein the drive rotation element is arranged as an impact mechanism shaft that encases at least a region of the tool spindle.