Patent · US Expired

Safety module for a multifunctional handheld tool

US6843140B2 · kind B2 · utility

27Cited by

3References

4Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Claus Osselmann · Kaltenberg, DE
Stefan Groer · Wipperfürth, DE
Peter Hellmann · Obermeitingen, DE

Key dates

Filing date	Aug 18, 2003
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Aug 18, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25F5/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A multifunction handheld tool machine having an at least partially axially percussive tool receptacle (7), a safety coupling (8) disposed in the power line between the tool receptacle and an electrical motor (6), a hand-guided housing and an ATC safety module (1) with a rotational sensor (3) sensitive to an angular displacement. The ATC safety module (1) is connected to an axial displacement sensor (4) and, in the event of exceeding an axial limit value (13b), the binary control signal (5) is suppressed by the axial displacement.

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