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, 2016
Filed:
Apr. 24, 2012
Ulf Nilsson, Örebro, SE;
Ulf Nilsson, Örebro, SE;
Atlas Copco Rock Drills AB, Orebro, SE;
Abstract
The invention relates to an impact mechanism comprising a housing () with at least two stroke adjustment channels (); an adjustment arrangement () with at least two adjustment pin channels () arranged to interact in a manner that can be selected with the stroke adjustment channels (); and a hammer piston () that performs reciprocating motion in the housing () in order to impact repetitively onto an anvil (), which hammer piston () has a stroke length that can be selected with the aid of adjustment pin channels () and the stroke adjustment channels (). According to the invention, the adjustment arrangement () comprises an elastic element () arranged to maintain the adjustment arrangement () in place for the stroke length that has been selected; and an operating means () arranged to select adjustment pin channel () and thus the stroke length of the hammer piston ().