Patent · US Active

Method for detecting a slip clutch release event, and power tool

US12083664B2 · kind B2 · utility

0Cited by

5References

7Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Christian Sattler · Biessenhofen, DE
Marco Balter · Feldkirch, AT
Frank Fritsch · Kaufering, DE

Key dates

Filing date	Jun 17, 2020
Grant date	Sep 10, 2024
Priority date	—
Expiry date	May 30, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2270/486
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for detecting whether a slip clutch release event has taken place in a power tool includes determining a first speed of a gear device by a first sensor, determining a second speed of a motor by a second sensor, and determining a current value by a third sensor. The method further includes determining a state of the power tool by using the first and second speeds and the current value, determining a state of the gear device in dependence on the current value by a control device, ascertaining a state of activity of the slip clutch in dependence on the first and second speeds by the control device, and ascertaining by the control device by a combination of the state of the gear device and the state of activity of the slip clutch whether the slip clutch release event has taken place.

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