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.

Date of Patent:
Jul. 27, 2004

Filed:

Jul. 17, 2002
Applicant:
Inventors:

Karl Frauhammer, Leinfelden-Echterdingen, DE;

Heinz Schnerring, Dettenhausen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D 7/02 ;
U.S. Cl.
CPC ...
E02D 7/02 ;
Abstract

An electric combination hammer for use either as a drilling hammer or as a chisel hammer has a housing and a handle arranged on it. The housing has arranged on it an on-off switch having a pawl and a switch element for manually switching from drilling operation to chisel operation and vice versa. Also arranged is a catch device by which the pawl may be engaged in chisel operation and which also prevents a latched position from being engaged in drilling operation. The catch device has a catch bracket having two legs which are connected by a joint and may be brought into operative connection with a blocking element that blocks the joint in at least one pivot direction to establish the catch function. The catch device also has at least one catch element which may be brought into operative connection with another catch element that is in operative connection with the pawl.


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