Patent · US Active

Drilling device and method for operating a drilling device

US10778138B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

C. & E. FEIN GMBH · DE

Inventors

Stefan Scherrenbacher · Schwäbisch Gmünd, DE
Ralf Gosnik · Eislingen/Fils, DE
Christoph Meyer · Herzogenrath, DE

Key dates

Filing date	Mar 18, 2019
Grant date	Sep 15, 2020
Priority date	—
Expiry date	Mar 18, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02H7/0852
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drilling device having a motor for driving a tool received in a tool holder, wherein the motor is coupled to a power source providing electrical operating power, and having a first switch for switching on the motor. A temperature switching element is provided, which is reversibly transferred from a first switching position to a second switching position, which shuts off the motor when the limit temperature of the switched-on motor is exceeded. For cooling the motor, the first switch and the temperature switching element are connected such that in the second switching position of the temperature switching element, it is possible to switch on the motor by pressing and holding the first switch. Moreover, the invention relates to a method for operating a drilling device.

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