Patent · US Expired

Tool holder and tool for drilling and striking machine tool

US5954347A · kind A · utility

36Cited by

5References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Manfred Buck · Jeffery Road, DE
Siegfried Fehrle · Echterdingen, DE
Bernd Koelle · Mühlacker, DE

Key dates

Filing date	Aug 21, 1997
Grant date	Sep 21, 1999
Priority date	—
Expiry date	Aug 21, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T409/30952
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A tool holder and an associated tool with the shank are provided for a drilling and/or striking machine tool. The tool holder has a drive spindle with a receiving opening provided with a cone for centering and a portion for driving the tool. Dumbbell-shaped locking elements are guided with their inner ends in a passage and with their outer ends in a longitudinal groove. The outer ends engage in pockets in an axially displacable locking sleeve which is prestressed by a spring in the direction toward its locking position.

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