Patent ID: 11945085
Assignee: HILTI AKTIENGESELLSCHAFT
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A hand-held power tool comprising:
a tool fitting for holding a striking and rotating tool on a working axis;
an electric motor coupled to a transmission shaft;
an impact mechanism having a striker movable periodically along the working axis; and
a rotary drive drives a guide tube carrying the tool fitting in rotation about the working axis, the rotary drive being coupled to the transmission shaft via a rocker lever;
wherein the impact mechanism has a transmission component for converting the rotary movement of the transmission shaft into a periodic movement in translation parallel to the working axis; wherein the impact mechanism has an exciter piston connected to the transmission component, and a pneumatic chamber, wherein the striker is coupled to the exciter piston via the pneumatic chamber; and wherein the rotary drive and the impact mechanism are coupled to the transmission shaft such that an advancing movement of the exciter piston takes place in a phase-shifted manner with respect to a torque transmission via a swivel sleeve.