Patent · US Expired

Hand held power tool with removable tool holder

US5199833A · kind A · utility

71Cited by

2References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Siegfried Fehrle · Echterdingen, DE
Wilfried Kabatnik · Echterdingen, DE
Manfred Buck · Jeffery Road, DE
Karl Wanner · Echterdingen, DE

Key dates

Filing date	Jan 3, 1992
Grant date	Apr 6, 1993
Priority date	—
Expiry date	Jan 3, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/95
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A hand held power tool has a rotatable spindle, a tool holder arranged on the spindle, a tool inserted in the tool holder, locking members fixing the tool holder with the spindle and engaging both in the tool holder and the spindle, a rotatable ring holding the locking members in its locking position and provided with depressions for receiving the locking members not locking position, and a gripping sleeve connected with the ring and operating simultaneously as an actuating member for unlocking the tool inserted in the tool holder.

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