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:
Dec. 06, 2011
Filed:
Oct. 05, 2007
Ernst Dreher, Reutlingen, DE;
Ernst Dreher, Reutlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a hand machine-tool, especially electrical shears, comprising a housing () provided with a tool head () and a grip part (), an electric motor () arranged in the housing (), a switch () for the electric motor (), and a drive shaft () mounted in the tool head (), transversally to the housing axis. The drive shaft can be driven by the electric motor () by means of a transmission (). The hand machine-tool also comprises a rotary tool () that can be fixed to the drive shaft (). The aim of the invention is to create a compact, structurally small and lightweight hand machine-tool for work without generating fatigue. To this end, a small-volume, rechargeable energy accumulator, preferably a lithium ion accumulator (), which feeds the electric motor () and has a high charging capacity, is arranged in the grip part, together with an electronic plate () and the switch. The transmission () and at least part of the electric motor () are arranged in the tool head ().