Patent · US Active

Electric hand-held power tool

US12257683B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Ernst-Rudolf Lübkert · Landsberg, DE
Karin GROTH · Landsberg, DE
Uto Plank · Freising, DE
Manuel Rosenzweig · Kaufering, DE
Andres Wellmann Jelic · Landsberg am Lech, DE

Key dates

Filing date	Mar 25, 2021
Grant date	Mar 25, 2025
Priority date	—
Expiry date	May 3, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/361
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

An electric hand-held power tool, in particular a hammer drill and/or chipping hammer, having an electropneumatic impact mechanism which has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in an axial direction in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing via an end plate of the transmission housing on the other side, wherein the transmission housing is subdivided at least into a main shell and a cover shell separate from the main shell, such that the guide tube is braced against the main shell at least partially by the cover shell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.