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:
Apr. 09, 1996
Filed:
Nov. 16, 1994
Hans-Peter Meyen, Filderstadt, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A device on power tools for driving impact and/or drilling tools has a tool having a tool shaft provided with at least two drive grooves open toward a shaft end and at least one locking trough closed toward the shaft end, in which correspondingly a driver and a locking body of a tool receptacle engage. For increasing the driving, at least one axial formation is provided on a projection of the thicker portion of the tool shaft to a thinner insertion end of the tool at the end side for an additional driving, which axial formation cooperates with an axial formation, for example a tooth, of a driven part, for example an auxiliary strip, at the end side of the tool holder.