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:
Jun. 28, 1983
Filed:
Oct. 20, 1980
Gerhard Kuhlmann, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A tool support for a hand tool machine includes a housing surrounding a drive spindle having a recess to receive a tool-receiving sleeve. This recess accommodates a compression spring which biases an end portion of the sleeve. The sleeve is also provided with a tool-facing portion receiving a tool to be used and an intermediate shaped portion which is arranged for a possible slidable movement within an adapter rigidly mounted to the drive spindle. A second sleeve is provided in the tool support which is threadably mounted on the tool-facing portion of the tool-receiving sleeve and is arranged so that its axial position may be adjusted. Said end portion of the sleeve has such a length that the length of contact of this end portion with the recess should be relatively larger than the combined length of contact of the shaped portion of the tool-receiving sleeve with the inner surface of the adapter and a possible path of the second sleeve in the axial direction. Such a structure provides a quick change of a tool to be used without any potential danger to an operator.