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:
Sep. 18, 2012
Filed:
Jun. 16, 2008
Erwin Manschitz, Germering, DE;
Reinhard Schulz, Munich, DE;
Alexander Loeffler, Kaufering, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held power tool includes a motor-driven percussion mechanism. The percussion mechanism includes a guide tube () and a reciprocating driving member () displaceable in the guide tube () for driving, via a gas spring, an impact member () likewise displaceable in the guide tube (). The percussion mechanism further includes a motor-driven eccentric wheel () rotatable about an axis (D) which is spaced from the percussion mechanism axis (S) in a direction perpendicular to the percussion mechanism axis (S) by a distance (X). A connection rod () is eccentrically supported on the eccentric wheel () and connected to the driving member () for converting a rotational movement of the eccentric wheel () into a reciprocating movement of the driving member ().