The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 1995
Filed:
Oct. 27, 1994
Applicant:
Inventor:
Hans-Peter Meyen, Filderstadt, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
408226 ; 279 194 ; 408240 ;
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.