Patent · US Active

Handheld power tool, fanless power supply unit and tool system

US10569407B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Ralf Meixner · Germaringen, DE
Holger Cecchin · Puchheim, DE
Bernd Ziegler · Ludwigshafen, DE

Key dates

Filing date	Nov 30, 2015
Grant date	Feb 25, 2020
Priority date	—
Expiry date	Sep 18, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2217/0061
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A hand-held power tool, in particular a hammer drill or combination hammer, is disclosed. The power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool further includes an electric drive motor having a cooling fan and a first vent portion which is located on the tool housing outside the receiving recess and through which a volume flow generated by the cooling fan can be guided. The tool housing has a second vent portion which is different from the first vent portion and which is located in the receiving recess and through which the volume flow generated by the cooling fan can be at least partially guided.

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