Device on hand power tools for driving tools

Details Device on hand power tools for driving tools Device on hand power tools for driving tools

1994-10-27

1995-11-14

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool or tool with support

Including detailed shank

279 194, 408240, B23B 5100, B23B 3110

Patent

active

054661013

ABSTRACT:
A device for driving impact and/or drilling tools on a hand power tool has a tool with a tool shaft having at least two drive grooves which are open toward the shaft end and at least one locking trough which is closed toward the shaft end. A driver for a radially displaceable locking body of a tool receptacle engage correspondingly in each drive groove and locking trough. For strengthening the driving, the locking body is provided with an axially extending, strip-shaped radial projection which engages in a correspondingly formed depression of the locking trough of the tool shaft for forming an additional drive flank.

REFERENCES:
patent: 4609199 (1986-09-01), Rohm
patent: 4726719 (1988-02-01), Mack
patent: 5346340 (1994-09-01), Runge

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