Cutting by use of rotating axially moving tool – Tool-support – With tool-retaining means
Patent
1991-11-08
1993-01-19
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool-support
With tool-retaining means
279145, B23B 4500
Patent
active
051802619
ABSTRACT:
A motor-operated tool is provided for tool sockets revolving about an axis, in particular for drills or spanners. The tool comprises a tool head containing a drive spindle. The drive spindle comprises a driving opening for a drive shank of the tool socket and a plurality of ball elements for engaging a part of the drive shank to lock it in the driving opening. The ball elements preferably are adapted to lock the drive shank in the driving opening automatically and to be released by a suitable mechanism. The tool socket is designed as a drill chuck and is provided with key elements for actuating the mechanism.
REFERENCES:
patent: 4583892 (1986-04-01), Armbruckner
patent: 4629375 (1986-12-01), Lieser
patent: 4888865 (1989-12-01), Okada et al.
C. & E. Fein GmbH & Co.
Howell Daniel W.
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